MDedge Infectious Disease

A systematic review of studies of infections found no evidence of airborne transmission of respiratory or enteric pathogens in public washrooms, but some experts disagree with the study’s conclusions. The study was published in Science of the Total Environment.

Sotiris Vardoulakis, PhD, of the Australian National University, Canberra, and colleagues reviewed studies of infections associated with public washrooms.

The researchers used keywords to identify potential articles. After screening study abstracts to ensure that only publicly available washrooms with toilets, sinks, and hand dryers were included, 65 studies remained. The investigators excluded washrooms on public transportation (ships, planes, trains, and buses).

“What most of the studies concluded was that what’s really important is to have good hand hygiene and proper maintenance and ventilation of washrooms,” Dr. Vardoulakis said in an interview. “So if the hand washing and drying is effective in the first place, it’s unlikely that the bathroom air or surfaces will pose an infectious disease transmission risk.”

There has been ongoing debate on whether electric hand dryers or paper towels are better. Some studies focused on hygiene. Others focused on the environmental cost of paper towels. One concern is that air dryers might spread germs further.

One study focused on the idea that the air recirculation from electric dryers may spread infective aerosols. Another study determined that the Airblade filters in some electric dryers clean more than 99% of the bacteria. The first study, published in Mayo Clinic Proceedings by Cunrui Huang, MMed, MSPH, and colleagues, concluded that “drying hands thoroughly with single-use, disposable paper towels is the preferred method of hand drying in terms of hand hygiene.” Many people prefer to use paper towels because they can be used as a barrier when opening the washroom door.

Dr. Vardoulakis dismissed the air-versus-paper debate, saying, “If the hand washing and drying is effective in the first place, it’s unlikely that the bathroom air or surfaces will pose an infectious disease transmission risk.”

Although Dr. Vardoulakis’ review did not find that public washrooms pose a risk for infection, other researchers have shown that some settings do pose problems. For example, toilet plumes are thought to have contributed to the 2003 outbreak of severe acute respiratory syndrome at the Amoy Gardens housing complex in Hong Kong and nearby buildings by aerosolization of fecal waste. Also, norovirus has long been shown to be transmitted by aerosolized particles in vomitus or stool.

Rodney E. Rohde, PhD, professor and chair, clinical lab science program, Texas State University, San Marcos, expressed concern about this systematic review in an interview with this news organization. “I believe one of the major limitations is that studies which involved restrooms on planes, hotels, camping (those camp kids are nasty), and other similar public-access restrooms MUST be included in this type of review. I also believe they excluded restrooms from low-income/rural areas. WHAT? Their ultimate conclusions seem to be in line with the most current understanding about hand hygiene (including drying without devices that create strong air currents, which may create widespread emission of microbes).”

In an interview, Emanuel Goldman, PhD, professor of microbiology, biochemistry, and molecular genetics, New Jersey Medical School, Newark, focused on the COVID-specific aspects of the review. “The chances are less than 1 in 10,000 of getting COVID from a fomite, and that’s very conservative,” he said. “I think it’s a lot lower than that. The virus is fragile. It dies very quickly outside of a human host.” He emphasized, “virtually no infectious virus has been found on fomites over the last 2 years. ... A big mistake in a lot of papers is they confuse viral RNA with the virus. It’s not the same. Viral RNA is the genetic material of the virus, but it also is the ghost of the virus after the virus is dead, and that’s what people are finding. They’re finding the ghost of the virus.”

Because “studies show that the transfer from a surface to fingers is in the neighborhood of 10% efficiency” and one’s fingers also kill the virus, “transmission through your fingers is not easy,” Dr. Goldman said. “You’ve got to really work at it to deliberately infect yourself” with COVID from a fomite.

Dr. Rohde’s conclusion about Dr. Vardoulakis’s review? “So, the question may be, have there been enough studies, in general, of these other areas to include in a review? Otherwise, can we really generalize from this study? I don’t think so.”

Dr. Goldman is not worried about COVID transmission in public bathrooms. His summation: “I think indoor dining is more risky than anything else right now.”

The study was funded by Dyson Technology. Dr. Vardoulakis is a member of the Dyson scientific advisory board.

A version of this article first appeared on Medscape.com.

A systematic review of studies of infections found no evidence of airborne transmission of respiratory or enteric pathogens in public washrooms, but some experts disagree with the study’s conclusions. The study was published in Science of the Total Environment.

Sotiris Vardoulakis, PhD, of the Australian National University, Canberra, and colleagues reviewed studies of infections associated with public washrooms.

The researchers used keywords to identify potential articles. After screening study abstracts to ensure that only publicly available washrooms with toilets, sinks, and hand dryers were included, 65 studies remained. The investigators excluded washrooms on public transportation (ships, planes, trains, and buses).

“What most of the studies concluded was that what’s really important is to have good hand hygiene and proper maintenance and ventilation of washrooms,” Dr. Vardoulakis said in an interview. “So if the hand washing and drying is effective in the first place, it’s unlikely that the bathroom air or surfaces will pose an infectious disease transmission risk.”

There has been ongoing debate on whether electric hand dryers or paper towels are better. Some studies focused on hygiene. Others focused on the environmental cost of paper towels. One concern is that air dryers might spread germs further.

One study focused on the idea that the air recirculation from electric dryers may spread infective aerosols. Another study determined that the Airblade filters in some electric dryers clean more than 99% of the bacteria. The first study, published in Mayo Clinic Proceedings by Cunrui Huang, MMed, MSPH, and colleagues, concluded that “drying hands thoroughly with single-use, disposable paper towels is the preferred method of hand drying in terms of hand hygiene.” Many people prefer to use paper towels because they can be used as a barrier when opening the washroom door.

Dr. Vardoulakis dismissed the air-versus-paper debate, saying, “If the hand washing and drying is effective in the first place, it’s unlikely that the bathroom air or surfaces will pose an infectious disease transmission risk.”

Although Dr. Vardoulakis’ review did not find that public washrooms pose a risk for infection, other researchers have shown that some settings do pose problems. For example, toilet plumes are thought to have contributed to the 2003 outbreak of severe acute respiratory syndrome at the Amoy Gardens housing complex in Hong Kong and nearby buildings by aerosolization of fecal waste. Also, norovirus has long been shown to be transmitted by aerosolized particles in vomitus or stool.

Rodney E. Rohde, PhD, professor and chair, clinical lab science program, Texas State University, San Marcos, expressed concern about this systematic review in an interview with this news organization. “I believe one of the major limitations is that studies which involved restrooms on planes, hotels, camping (those camp kids are nasty), and other similar public-access restrooms MUST be included in this type of review. I also believe they excluded restrooms from low-income/rural areas. WHAT? Their ultimate conclusions seem to be in line with the most current understanding about hand hygiene (including drying without devices that create strong air currents, which may create widespread emission of microbes).”

In an interview, Emanuel Goldman, PhD, professor of microbiology, biochemistry, and molecular genetics, New Jersey Medical School, Newark, focused on the COVID-specific aspects of the review. “The chances are less than 1 in 10,000 of getting COVID from a fomite, and that’s very conservative,” he said. “I think it’s a lot lower than that. The virus is fragile. It dies very quickly outside of a human host.” He emphasized, “virtually no infectious virus has been found on fomites over the last 2 years. ... A big mistake in a lot of papers is they confuse viral RNA with the virus. It’s not the same. Viral RNA is the genetic material of the virus, but it also is the ghost of the virus after the virus is dead, and that’s what people are finding. They’re finding the ghost of the virus.”

Because “studies show that the transfer from a surface to fingers is in the neighborhood of 10% efficiency” and one’s fingers also kill the virus, “transmission through your fingers is not easy,” Dr. Goldman said. “You’ve got to really work at it to deliberately infect yourself” with COVID from a fomite.

Dr. Rohde’s conclusion about Dr. Vardoulakis’s review? “So, the question may be, have there been enough studies, in general, of these other areas to include in a review? Otherwise, can we really generalize from this study? I don’t think so.”

Dr. Goldman is not worried about COVID transmission in public bathrooms. His summation: “I think indoor dining is more risky than anything else right now.”

The study was funded by Dyson Technology. Dr. Vardoulakis is a member of the Dyson scientific advisory board.

A version of this article first appeared on Medscape.com.

A systematic review of studies of infections found no evidence of airborne transmission of respiratory or enteric pathogens in public washrooms, but some experts disagree with the study’s conclusions. The study was published in Science of the Total Environment.

Sotiris Vardoulakis, PhD, of the Australian National University, Canberra, and colleagues reviewed studies of infections associated with public washrooms.

The researchers used keywords to identify potential articles. After screening study abstracts to ensure that only publicly available washrooms with toilets, sinks, and hand dryers were included, 65 studies remained. The investigators excluded washrooms on public transportation (ships, planes, trains, and buses).

“What most of the studies concluded was that what’s really important is to have good hand hygiene and proper maintenance and ventilation of washrooms,” Dr. Vardoulakis said in an interview. “So if the hand washing and drying is effective in the first place, it’s unlikely that the bathroom air or surfaces will pose an infectious disease transmission risk.”

There has been ongoing debate on whether electric hand dryers or paper towels are better. Some studies focused on hygiene. Others focused on the environmental cost of paper towels. One concern is that air dryers might spread germs further.

One study focused on the idea that the air recirculation from electric dryers may spread infective aerosols. Another study determined that the Airblade filters in some electric dryers clean more than 99% of the bacteria. The first study, published in Mayo Clinic Proceedings by Cunrui Huang, MMed, MSPH, and colleagues, concluded that “drying hands thoroughly with single-use, disposable paper towels is the preferred method of hand drying in terms of hand hygiene.” Many people prefer to use paper towels because they can be used as a barrier when opening the washroom door.

Dr. Vardoulakis dismissed the air-versus-paper debate, saying, “If the hand washing and drying is effective in the first place, it’s unlikely that the bathroom air or surfaces will pose an infectious disease transmission risk.”

Although Dr. Vardoulakis’ review did not find that public washrooms pose a risk for infection, other researchers have shown that some settings do pose problems. For example, toilet plumes are thought to have contributed to the 2003 outbreak of severe acute respiratory syndrome at the Amoy Gardens housing complex in Hong Kong and nearby buildings by aerosolization of fecal waste. Also, norovirus has long been shown to be transmitted by aerosolized particles in vomitus or stool.

Rodney E. Rohde, PhD, professor and chair, clinical lab science program, Texas State University, San Marcos, expressed concern about this systematic review in an interview with this news organization. “I believe one of the major limitations is that studies which involved restrooms on planes, hotels, camping (those camp kids are nasty), and other similar public-access restrooms MUST be included in this type of review. I also believe they excluded restrooms from low-income/rural areas. WHAT? Their ultimate conclusions seem to be in line with the most current understanding about hand hygiene (including drying without devices that create strong air currents, which may create widespread emission of microbes).”

In an interview, Emanuel Goldman, PhD, professor of microbiology, biochemistry, and molecular genetics, New Jersey Medical School, Newark, focused on the COVID-specific aspects of the review. “The chances are less than 1 in 10,000 of getting COVID from a fomite, and that’s very conservative,” he said. “I think it’s a lot lower than that. The virus is fragile. It dies very quickly outside of a human host.” He emphasized, “virtually no infectious virus has been found on fomites over the last 2 years. ... A big mistake in a lot of papers is they confuse viral RNA with the virus. It’s not the same. Viral RNA is the genetic material of the virus, but it also is the ghost of the virus after the virus is dead, and that’s what people are finding. They’re finding the ghost of the virus.”

Because “studies show that the transfer from a surface to fingers is in the neighborhood of 10% efficiency” and one’s fingers also kill the virus, “transmission through your fingers is not easy,” Dr. Goldman said. “You’ve got to really work at it to deliberately infect yourself” with COVID from a fomite.

Dr. Rohde’s conclusion about Dr. Vardoulakis’s review? “So, the question may be, have there been enough studies, in general, of these other areas to include in a review? Otherwise, can we really generalize from this study? I don’t think so.”

Dr. Goldman is not worried about COVID transmission in public bathrooms. His summation: “I think indoor dining is more risky than anything else right now.”

The study was funded by Dyson Technology. Dr. Vardoulakis is a member of the Dyson scientific advisory board.

A version of this article first appeared on Medscape.com.

Deer, COVID, how?

Usually humans cannot get close enough to a deer to really be face-to-face, so it’s easy to question how on Earth deer are contracting COVID-19. Well, stranger things have happened, and honestly, we’ve just stopped questioning most of them.

petemeade/PxHere

Exhibit A comes to us from a Penn State University study: Eighty percent of deer sampled in Iowa in December 2020 and January 2021 – as part of the state’s chronic wasting disease surveillance program – were found to be positive for COVID-19.

A statement from the university said that “white-tailed deer may be a reservoir for the virus to continually circulate and raise concerns about the emergence of new strains that may prove a threat to wildlife and, possibly, to humans.” The investigators also suggested that deer probably caught the virus from humans and then transmitted it to other deer.

If you or someone you know is a hunter or a white-tailed deer, it’s best to proceed with caution. There’s no evidence that COVID-19 has jumped from deer to humans, but hunters should wear masks and gloves while working with deer, worrying not just about the deer’s face, but also … you know, the gastrointestinal parts, Robert Salata, MD, of University Hospitals Cleveland Medical Center, told Syracuse.com. It also shouldn’t be too risky to eat venison, he said, just make sure the meat is cooked thoroughly.

The more you know!
 

The neurological super powers of grandma are real

What is it about grandmothers that makes them seem almost magical at times? They somehow always know how you feel. And they can almost always tell when something is wrong. They also seem to be the biggest ally a child will have against his or her parents.

Mark Edward Atkinson/Tracey Lee

So what makes these super matriarchs? The answer is in the brain.

Apparently there’s a function in the brains of grandmothers geared toward “emotional empathy.” James Rilling, PhD, of Emory University, lead author of a recent study focused on looking at the brain function of grandmothers, suggested that they’re neurologically tapped into feeling how their grandchildren feel: “If their grandchild is smiling, they’re feeling the child’s joy. And if their grandchild is crying, they’re feeling the child’s pain and distress.”

And then there’s the cute factor. Never underestimate a child’s ability to manipulate his or her grandmother’s brain.

So how do the researchers know this? Functional MRI showed more brain activity in the parts of the brain that deal with emotional empathy and movement in the participating grandmas when shown pictures of their grandchildren. Images of their own adult children lit up areas more associated with cognitive empathy. So less emotional and more mental/logical understanding.

Kids, don’t tell Mom about the secret midnight snacks with grandma. She wouldn’t get it.

Then there’s the grandmother hypothesis, which suggests that women tend to live longer to provide some kind of evolutionary benefit to their children and grandchildren. Evidence also exists that children with positive engagement from their grandmothers tend to have better social and academic outcomes, behavior, and physical health.

A lot of credit on how children turn out, of course, goes to parents, but more can be said about grandmas. Don’t let the age and freshly baked cookies fool you. They have neurologic superpowers within.
 

Brain cleanup on aisle 5

You’ve got your local grocery store down. You know the ins and outs; you know where everything is. Last week you did your trip in record time. This week, however, you have to stop at a different store. Same chain, but a different location. You stroll in, confidently walk toward the first aisle for your fruits and veggies, and ... it’s all ice cream. Oops.

Max Pixel

There’s a lot we don’t understand about the brain, including how it remembers familiar environments to avoid confusion. Or why it fails to do so, as with our grocery store example. However, thanks to a study from the University of Arizona, we may have an answer.

For the experiment, a group of participants watched a video tour of three virtual cities. Those cities were very similar, being laid out in basically identical fashion. Stores could be found in the same places, but the identity of those stores varied. Some stores were in all three cities, some were in two, and some were unique. Participants were asked to memorize the layouts, and those who got things more than 80% correct ran through the test again, only this time their brain activity was monitored through MRI.

In general, brain activity was similar for the participants; after all, they were recalling similar environments. However, when asked about stores that appeared in multiple cities, brain activity varied dramatically. This indicated to the researchers that the brain was recalling shared stores as if they were more dissimilar than two completely disparate and unique stores, a concept often known to brain scientists as “repulsion.” It also indicates that the memories regarding shared environments are stored in the prefrontal cortex, not the hippocampus, which typically handles memory.

The researchers plan to apply this information to questions about diseases such as Alzheimer’s, so the next time you get turned around in a weirdly unfamiliar grocery store, just think: “It’s okay, I’m helping to solve a terrible brain disease.”
 

The real endgame: Friction is the winner

Spoiler alert! If you haven’t seen “Avengers: Infinity War” yet, we’re about to ruin it for you.

Georgia Tech

For those still with us, here’s the spoiler: Thanos would not have been able to snap his fingers while wearing the Infinity Gauntlet.

Saad Bhamla, PhD, of Georgia Tech University’s school of chemical and biomolecular engineering, had been studying powerful and ultrafast motions in living organisms along with several colleagues before the movie came out in 2018, and when they saw the finger-snapping scene it got them wondering.

Being scientists of course, they had no choice. They got out their high-speed imaging equipment, automated image processing software, and dynamic force sensors and analyzed finger snaps, paying close attention to friction by covering fingers with “different materials, including metallic thimbles to simulate the effects of trying to snap while wearing a metallic gauntlet, much like Thanos,” according to a statement on Eurekalert.

With finger snaps, it’s all about the rotational velocity. The angular acceleration involved is the fastest ever measured in a human, with a professional baseball pitcher’s throwing arm a distant second.

Dr. Bhamla’s reaction to their work explains why scientists are the ones doing science. “When I first saw the data, I jumped out of my chair,” he said in the written statement.

Rotational velocities dropped dramatically when the friction-reducing thimbles were used, so there was no snap. Which means that billions and billions of fictional lives could have been saved if the filmmakers had just talked to the right scientist.

That scientist, clearly, is Dr. Bhamla, who said that “this is the only scientific project in my lab in which we could snap our fingers and get data.”

Deer, COVID, how?

Usually humans cannot get close enough to a deer to really be face-to-face, so it’s easy to question how on Earth deer are contracting COVID-19. Well, stranger things have happened, and honestly, we’ve just stopped questioning most of them.

petemeade/PxHere

Exhibit A comes to us from a Penn State University study: Eighty percent of deer sampled in Iowa in December 2020 and January 2021 – as part of the state’s chronic wasting disease surveillance program – were found to be positive for COVID-19.

A statement from the university said that “white-tailed deer may be a reservoir for the virus to continually circulate and raise concerns about the emergence of new strains that may prove a threat to wildlife and, possibly, to humans.” The investigators also suggested that deer probably caught the virus from humans and then transmitted it to other deer.

If you or someone you know is a hunter or a white-tailed deer, it’s best to proceed with caution. There’s no evidence that COVID-19 has jumped from deer to humans, but hunters should wear masks and gloves while working with deer, worrying not just about the deer’s face, but also … you know, the gastrointestinal parts, Robert Salata, MD, of University Hospitals Cleveland Medical Center, told Syracuse.com. It also shouldn’t be too risky to eat venison, he said, just make sure the meat is cooked thoroughly.

The more you know!
 

The neurological super powers of grandma are real

What is it about grandmothers that makes them seem almost magical at times? They somehow always know how you feel. And they can almost always tell when something is wrong. They also seem to be the biggest ally a child will have against his or her parents.

Mark Edward Atkinson/Tracey Lee

So what makes these super matriarchs? The answer is in the brain.

Apparently there’s a function in the brains of grandmothers geared toward “emotional empathy.” James Rilling, PhD, of Emory University, lead author of a recent study focused on looking at the brain function of grandmothers, suggested that they’re neurologically tapped into feeling how their grandchildren feel: “If their grandchild is smiling, they’re feeling the child’s joy. And if their grandchild is crying, they’re feeling the child’s pain and distress.”

And then there’s the cute factor. Never underestimate a child’s ability to manipulate his or her grandmother’s brain.

So how do the researchers know this? Functional MRI showed more brain activity in the parts of the brain that deal with emotional empathy and movement in the participating grandmas when shown pictures of their grandchildren. Images of their own adult children lit up areas more associated with cognitive empathy. So less emotional and more mental/logical understanding.

Kids, don’t tell Mom about the secret midnight snacks with grandma. She wouldn’t get it.

Then there’s the grandmother hypothesis, which suggests that women tend to live longer to provide some kind of evolutionary benefit to their children and grandchildren. Evidence also exists that children with positive engagement from their grandmothers tend to have better social and academic outcomes, behavior, and physical health.

A lot of credit on how children turn out, of course, goes to parents, but more can be said about grandmas. Don’t let the age and freshly baked cookies fool you. They have neurologic superpowers within.
 

Brain cleanup on aisle 5

You’ve got your local grocery store down. You know the ins and outs; you know where everything is. Last week you did your trip in record time. This week, however, you have to stop at a different store. Same chain, but a different location. You stroll in, confidently walk toward the first aisle for your fruits and veggies, and ... it’s all ice cream. Oops.

Max Pixel

There’s a lot we don’t understand about the brain, including how it remembers familiar environments to avoid confusion. Or why it fails to do so, as with our grocery store example. However, thanks to a study from the University of Arizona, we may have an answer.

For the experiment, a group of participants watched a video tour of three virtual cities. Those cities were very similar, being laid out in basically identical fashion. Stores could be found in the same places, but the identity of those stores varied. Some stores were in all three cities, some were in two, and some were unique. Participants were asked to memorize the layouts, and those who got things more than 80% correct ran through the test again, only this time their brain activity was monitored through MRI.

In general, brain activity was similar for the participants; after all, they were recalling similar environments. However, when asked about stores that appeared in multiple cities, brain activity varied dramatically. This indicated to the researchers that the brain was recalling shared stores as if they were more dissimilar than two completely disparate and unique stores, a concept often known to brain scientists as “repulsion.” It also indicates that the memories regarding shared environments are stored in the prefrontal cortex, not the hippocampus, which typically handles memory.

The researchers plan to apply this information to questions about diseases such as Alzheimer’s, so the next time you get turned around in a weirdly unfamiliar grocery store, just think: “It’s okay, I’m helping to solve a terrible brain disease.”
 

The real endgame: Friction is the winner

Spoiler alert! If you haven’t seen “Avengers: Infinity War” yet, we’re about to ruin it for you.

Georgia Tech

For those still with us, here’s the spoiler: Thanos would not have been able to snap his fingers while wearing the Infinity Gauntlet.

Saad Bhamla, PhD, of Georgia Tech University’s school of chemical and biomolecular engineering, had been studying powerful and ultrafast motions in living organisms along with several colleagues before the movie came out in 2018, and when they saw the finger-snapping scene it got them wondering.

Being scientists of course, they had no choice. They got out their high-speed imaging equipment, automated image processing software, and dynamic force sensors and analyzed finger snaps, paying close attention to friction by covering fingers with “different materials, including metallic thimbles to simulate the effects of trying to snap while wearing a metallic gauntlet, much like Thanos,” according to a statement on Eurekalert.

With finger snaps, it’s all about the rotational velocity. The angular acceleration involved is the fastest ever measured in a human, with a professional baseball pitcher’s throwing arm a distant second.

Dr. Bhamla’s reaction to their work explains why scientists are the ones doing science. “When I first saw the data, I jumped out of my chair,” he said in the written statement.

Rotational velocities dropped dramatically when the friction-reducing thimbles were used, so there was no snap. Which means that billions and billions of fictional lives could have been saved if the filmmakers had just talked to the right scientist.

That scientist, clearly, is Dr. Bhamla, who said that “this is the only scientific project in my lab in which we could snap our fingers and get data.”

Deer, COVID, how?

Usually humans cannot get close enough to a deer to really be face-to-face, so it’s easy to question how on Earth deer are contracting COVID-19. Well, stranger things have happened, and honestly, we’ve just stopped questioning most of them.

petemeade/PxHere

Exhibit A comes to us from a Penn State University study: Eighty percent of deer sampled in Iowa in December 2020 and January 2021 – as part of the state’s chronic wasting disease surveillance program – were found to be positive for COVID-19.

A statement from the university said that “white-tailed deer may be a reservoir for the virus to continually circulate and raise concerns about the emergence of new strains that may prove a threat to wildlife and, possibly, to humans.” The investigators also suggested that deer probably caught the virus from humans and then transmitted it to other deer.

If you or someone you know is a hunter or a white-tailed deer, it’s best to proceed with caution. There’s no evidence that COVID-19 has jumped from deer to humans, but hunters should wear masks and gloves while working with deer, worrying not just about the deer’s face, but also … you know, the gastrointestinal parts, Robert Salata, MD, of University Hospitals Cleveland Medical Center, told Syracuse.com. It also shouldn’t be too risky to eat venison, he said, just make sure the meat is cooked thoroughly.

The more you know!
 

The neurological super powers of grandma are real

What is it about grandmothers that makes them seem almost magical at times? They somehow always know how you feel. And they can almost always tell when something is wrong. They also seem to be the biggest ally a child will have against his or her parents.

Mark Edward Atkinson/Tracey Lee

So what makes these super matriarchs? The answer is in the brain.

Apparently there’s a function in the brains of grandmothers geared toward “emotional empathy.” James Rilling, PhD, of Emory University, lead author of a recent study focused on looking at the brain function of grandmothers, suggested that they’re neurologically tapped into feeling how their grandchildren feel: “If their grandchild is smiling, they’re feeling the child’s joy. And if their grandchild is crying, they’re feeling the child’s pain and distress.”

And then there’s the cute factor. Never underestimate a child’s ability to manipulate his or her grandmother’s brain.

So how do the researchers know this? Functional MRI showed more brain activity in the parts of the brain that deal with emotional empathy and movement in the participating grandmas when shown pictures of their grandchildren. Images of their own adult children lit up areas more associated with cognitive empathy. So less emotional and more mental/logical understanding.

Kids, don’t tell Mom about the secret midnight snacks with grandma. She wouldn’t get it.

Then there’s the grandmother hypothesis, which suggests that women tend to live longer to provide some kind of evolutionary benefit to their children and grandchildren. Evidence also exists that children with positive engagement from their grandmothers tend to have better social and academic outcomes, behavior, and physical health.

A lot of credit on how children turn out, of course, goes to parents, but more can be said about grandmas. Don’t let the age and freshly baked cookies fool you. They have neurologic superpowers within.
 

Brain cleanup on aisle 5

You’ve got your local grocery store down. You know the ins and outs; you know where everything is. Last week you did your trip in record time. This week, however, you have to stop at a different store. Same chain, but a different location. You stroll in, confidently walk toward the first aisle for your fruits and veggies, and ... it’s all ice cream. Oops.

Max Pixel

There’s a lot we don’t understand about the brain, including how it remembers familiar environments to avoid confusion. Or why it fails to do so, as with our grocery store example. However, thanks to a study from the University of Arizona, we may have an answer.

For the experiment, a group of participants watched a video tour of three virtual cities. Those cities were very similar, being laid out in basically identical fashion. Stores could be found in the same places, but the identity of those stores varied. Some stores were in all three cities, some were in two, and some were unique. Participants were asked to memorize the layouts, and those who got things more than 80% correct ran through the test again, only this time their brain activity was monitored through MRI.

In general, brain activity was similar for the participants; after all, they were recalling similar environments. However, when asked about stores that appeared in multiple cities, brain activity varied dramatically. This indicated to the researchers that the brain was recalling shared stores as if they were more dissimilar than two completely disparate and unique stores, a concept often known to brain scientists as “repulsion.” It also indicates that the memories regarding shared environments are stored in the prefrontal cortex, not the hippocampus, which typically handles memory.

The researchers plan to apply this information to questions about diseases such as Alzheimer’s, so the next time you get turned around in a weirdly unfamiliar grocery store, just think: “It’s okay, I’m helping to solve a terrible brain disease.”
 

The real endgame: Friction is the winner

Spoiler alert! If you haven’t seen “Avengers: Infinity War” yet, we’re about to ruin it for you.

Georgia Tech

For those still with us, here’s the spoiler: Thanos would not have been able to snap his fingers while wearing the Infinity Gauntlet.

Saad Bhamla, PhD, of Georgia Tech University’s school of chemical and biomolecular engineering, had been studying powerful and ultrafast motions in living organisms along with several colleagues before the movie came out in 2018, and when they saw the finger-snapping scene it got them wondering.

Being scientists of course, they had no choice. They got out their high-speed imaging equipment, automated image processing software, and dynamic force sensors and analyzed finger snaps, paying close attention to friction by covering fingers with “different materials, including metallic thimbles to simulate the effects of trying to snap while wearing a metallic gauntlet, much like Thanos,” according to a statement on Eurekalert.

With finger snaps, it’s all about the rotational velocity. The angular acceleration involved is the fastest ever measured in a human, with a professional baseball pitcher’s throwing arm a distant second.

Dr. Bhamla’s reaction to their work explains why scientists are the ones doing science. “When I first saw the data, I jumped out of my chair,” he said in the written statement.

Rotational velocities dropped dramatically when the friction-reducing thimbles were used, so there was no snap. Which means that billions and billions of fictional lives could have been saved if the filmmakers had just talked to the right scientist.

That scientist, clearly, is Dr. Bhamla, who said that “this is the only scientific project in my lab in which we could snap our fingers and get data.”

It sounds like a fairy tale steeped in HIV stigma: A woman wakes up one morning and, poof, the HIV she’s been living with for 8 years is gone. But for a 30-year-old Argentinian woman from the aptly named village of Esperanza, that’s close to the truth, according to an article published in Annals of Internal Medicine.

The woman, the so-called Esperanza Patient, appears to be the second person whose immune system cleared the virus without the use of stem cell transplantation. The first was Loreen Willenberg, a California woman who, after living with HIV for 27 years, no longer had replicating HIV in her system. That case was reported last year.

“That’s the beauty of this name, right? Esperanza,” said Xu Yu, MD, principal investigator of the Ragon Institute of Massachusetts General Hospital, the Massachusetts Institute of Technology, and Harvard University, Boston, referring to the Spanish word for “hope.” “This makes us hopeful that a natural cure of HIV is actually possible.”

Two other people appear to have cleared HIV, but only after full replacement of the immune system via stem cell transplantation – the Berlin Patient, Timothy Ray Brown, and the London Patient. Another man, from Brazil, appeared to have an undetectable viral load after receiving intensified antiretroviral treatment plus supplemental vitamin B3.
 

The rarest of the rare

The Esperanza Patient is among a rare group of people living with HIV called elite controllers. These people’s immune systems can control HIV without antiretrovirals. Most elite controllers’ immune systems, however, can’t mount the immune attack necessary to eliminate all replicating HIV from their systems. Instead, their immune systems control the virus without affecting the reservoirs where HIV continues to make copies of itself and can spread.

The Esperanza Patient and Ms. Willenberg, however, appear to be the rarest of the rare. Their own immune systems seem not only to have stopped HIV replication outside of reservoirs but also to have stormed those reservoirs and killed all virus that might have continued to replicate.

The two women are connected in another way: At an HIV conference in 2019, Dr. Yu was presenting data on Ms. Willenberg’s case. At that conference, she met Natalia Laufer, MD, PhD, associate researcher at the Instituto de Investigaciones Biomédicas en Retrovirs y SIDA at the University of Buenos Aires. Dr. Laufer had been studying the Esperanza Patient at the time and asked Dr. Yu whether she and her team at the Ragon Institute could help her sequence the patient’s HIV genome to see whether, indeed, the virus had been spontaneously cleared from the patient’s system.

So that’s what the pair did, in collaboration with several other researchers into cures for HIV. The Esperanza Patient first acquired HIV in 2013, but in the 8 years that followed, results of 10 conventional viral load tests indicated the virus was undetectable (that is, below the level of quantification for standard technology). During that time, the woman’s boyfriend, from whom she had acquired HIV, died of AIDS-defining illnesses. She subsequently married and had a baby. Both her partner and baby are HIV negative. She only received HIV treatment for 6 months while she was pregnant.
 

A fossil record of HIV

Yet, there was still HIV in the woman’s system. Dr. Laufer and Dr. Yu wanted to know whether that HIV was transmissible or whether it was a relic from when HIV was still replicating and was now defective and incapable of replicating. They performed extensive genome sequencing on nearly 1.2 billion cells that Dr. Laufer had taken from the patient’s blood in 2017, 2018, 2019, and 2020, an additional 503 million cells that were from the placenta of the baby she gave birth to in 2020, and 150 million resting CD4 T cells. Proviral sequencing was undertaken of the full DNA of the HIV to detect whether the virus was still intact. The DNA was then analyzed by use of an algorithm and was tested for mutations. The investigators tested the patient’s CD4 cells to determine whether the cells still harbored any latent HIV.

In this way, they conducted a full viral workup using tests that are far more sensitive than the viral load tests the woman had undergone in the clinic. The investigators then assessed the patient’s immune system to see what the various cells of the immune system could tell them about how well her natural immune system could identify and kill HIV. They isolated the Esperanza Patient’s immune cells and subjected those cells to HIV in the lab to see whether the cells could detect and eliminate the virus.

And just to be safe, they checked to make sure there were no antiretroviral drugs in the patient’s system.

What they found was that without treatment, her CD4 count hovered around 1,000 cells – a sign of a functioning immune system. DNA sequences revealed large chunks of missing DNA, and one sequence had an immune-induced hypermutation. In total, seven proviruses were found, but none were capable of replicating. The CD4 cells they evaluated showed no evidence of latent HIV.

In other words, they had uncovered a fossil record.

“These HIV-1 DNA products clearly indicate that this person was infected with HIV-1 in the past and that active cycles of viral replication had occurred at one point,” Dr. Yu and colleagues write in their recent article.

What may be more useful to researchers looking to turn this spontaneous cure into treatment for millions of people living with active HIV was the evidence that the woman’s immune system had trained itself to attack HIV through a number of genetic mutations. What they found, the researchers write, was evidence of “an incomplete seroconversion” – that is, when the patient was acquiring HIV, the infection was stopped in its tracks.

Yet, Dr. Yu and colleagues say that they can’t prove that the woman is fully cured of HIV.

“Although this might sound unsatisfying, it reflects an intrinsic limitation of scientific research,” they write. “Scientific concepts can never be proved through empirical data collection; they can only be disproved.”
 

There are more out there

Are these women the only ones to have spontaneously cleared HIV? That’s the question, said Carl Dieffenbach, PhD, director of the Division of AIDS at the National Institute of Allergy and Infectious Diseases at the National Institutes of Health. Just like they can’t disprove that the women cured themselves, they can’t prove that she and Ms. Willenberg are the only two people to have experienced this cure.

“We’re all struggling with this,” Dr. Dieffenbach told this news organization. “The goal is to get enough of these people so maybe there’s a road map to how to induce, trigger, change immunity. But this could well be a unique event at the time of initiation of infection. We just don’t know.”

What is needed, Dr. Yu said, is for clinicians to reach out to them regarding cases that could mimic the cases of Ms. Willenberg and the Esperanza Patient. Elaborate testing could then be conducted to see whether these cases are similar to those of Ms. Willenberg and the Esperanza Patient.

“We do think there are more out there,” Dr. Yu said in an interview.

Asked whether we’re still far away from applying these one-off cures to the millions of people taking HIV treatment daily, Dr. Yu responded, “We might be close. That’s the beauty of scientific discovery. We don’t know, but that’s why we need more engagement of the community and care providers to help us.”

The research was funded by the Bill and Melinda Gates Foundation and the National Institutes of Health. Dr. Yu and Dr. Dieffenbach have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

It sounds like a fairy tale steeped in HIV stigma: A woman wakes up one morning and, poof, the HIV she’s been living with for 8 years is gone. But for a 30-year-old Argentinian woman from the aptly named village of Esperanza, that’s close to the truth, according to an article published in Annals of Internal Medicine.

The woman, the so-called Esperanza Patient, appears to be the second person whose immune system cleared the virus without the use of stem cell transplantation. The first was Loreen Willenberg, a California woman who, after living with HIV for 27 years, no longer had replicating HIV in her system. That case was reported last year.

“That’s the beauty of this name, right? Esperanza,” said Xu Yu, MD, principal investigator of the Ragon Institute of Massachusetts General Hospital, the Massachusetts Institute of Technology, and Harvard University, Boston, referring to the Spanish word for “hope.” “This makes us hopeful that a natural cure of HIV is actually possible.”

Two other people appear to have cleared HIV, but only after full replacement of the immune system via stem cell transplantation – the Berlin Patient, Timothy Ray Brown, and the London Patient. Another man, from Brazil, appeared to have an undetectable viral load after receiving intensified antiretroviral treatment plus supplemental vitamin B3.
 

The rarest of the rare

The Esperanza Patient is among a rare group of people living with HIV called elite controllers. These people’s immune systems can control HIV without antiretrovirals. Most elite controllers’ immune systems, however, can’t mount the immune attack necessary to eliminate all replicating HIV from their systems. Instead, their immune systems control the virus without affecting the reservoirs where HIV continues to make copies of itself and can spread.

The Esperanza Patient and Ms. Willenberg, however, appear to be the rarest of the rare. Their own immune systems seem not only to have stopped HIV replication outside of reservoirs but also to have stormed those reservoirs and killed all virus that might have continued to replicate.

The two women are connected in another way: At an HIV conference in 2019, Dr. Yu was presenting data on Ms. Willenberg’s case. At that conference, she met Natalia Laufer, MD, PhD, associate researcher at the Instituto de Investigaciones Biomédicas en Retrovirs y SIDA at the University of Buenos Aires. Dr. Laufer had been studying the Esperanza Patient at the time and asked Dr. Yu whether she and her team at the Ragon Institute could help her sequence the patient’s HIV genome to see whether, indeed, the virus had been spontaneously cleared from the patient’s system.

So that’s what the pair did, in collaboration with several other researchers into cures for HIV. The Esperanza Patient first acquired HIV in 2013, but in the 8 years that followed, results of 10 conventional viral load tests indicated the virus was undetectable (that is, below the level of quantification for standard technology). During that time, the woman’s boyfriend, from whom she had acquired HIV, died of AIDS-defining illnesses. She subsequently married and had a baby. Both her partner and baby are HIV negative. She only received HIV treatment for 6 months while she was pregnant.
 

A fossil record of HIV

Yet, there was still HIV in the woman’s system. Dr. Laufer and Dr. Yu wanted to know whether that HIV was transmissible or whether it was a relic from when HIV was still replicating and was now defective and incapable of replicating. They performed extensive genome sequencing on nearly 1.2 billion cells that Dr. Laufer had taken from the patient’s blood in 2017, 2018, 2019, and 2020, an additional 503 million cells that were from the placenta of the baby she gave birth to in 2020, and 150 million resting CD4 T cells. Proviral sequencing was undertaken of the full DNA of the HIV to detect whether the virus was still intact. The DNA was then analyzed by use of an algorithm and was tested for mutations. The investigators tested the patient’s CD4 cells to determine whether the cells still harbored any latent HIV.

In this way, they conducted a full viral workup using tests that are far more sensitive than the viral load tests the woman had undergone in the clinic. The investigators then assessed the patient’s immune system to see what the various cells of the immune system could tell them about how well her natural immune system could identify and kill HIV. They isolated the Esperanza Patient’s immune cells and subjected those cells to HIV in the lab to see whether the cells could detect and eliminate the virus.

And just to be safe, they checked to make sure there were no antiretroviral drugs in the patient’s system.

What they found was that without treatment, her CD4 count hovered around 1,000 cells – a sign of a functioning immune system. DNA sequences revealed large chunks of missing DNA, and one sequence had an immune-induced hypermutation. In total, seven proviruses were found, but none were capable of replicating. The CD4 cells they evaluated showed no evidence of latent HIV.

In other words, they had uncovered a fossil record.

“These HIV-1 DNA products clearly indicate that this person was infected with HIV-1 in the past and that active cycles of viral replication had occurred at one point,” Dr. Yu and colleagues write in their recent article.

What may be more useful to researchers looking to turn this spontaneous cure into treatment for millions of people living with active HIV was the evidence that the woman’s immune system had trained itself to attack HIV through a number of genetic mutations. What they found, the researchers write, was evidence of “an incomplete seroconversion” – that is, when the patient was acquiring HIV, the infection was stopped in its tracks.

Yet, Dr. Yu and colleagues say that they can’t prove that the woman is fully cured of HIV.

“Although this might sound unsatisfying, it reflects an intrinsic limitation of scientific research,” they write. “Scientific concepts can never be proved through empirical data collection; they can only be disproved.”
 

There are more out there

Are these women the only ones to have spontaneously cleared HIV? That’s the question, said Carl Dieffenbach, PhD, director of the Division of AIDS at the National Institute of Allergy and Infectious Diseases at the National Institutes of Health. Just like they can’t disprove that the women cured themselves, they can’t prove that she and Ms. Willenberg are the only two people to have experienced this cure.

“We’re all struggling with this,” Dr. Dieffenbach told this news organization. “The goal is to get enough of these people so maybe there’s a road map to how to induce, trigger, change immunity. But this could well be a unique event at the time of initiation of infection. We just don’t know.”

What is needed, Dr. Yu said, is for clinicians to reach out to them regarding cases that could mimic the cases of Ms. Willenberg and the Esperanza Patient. Elaborate testing could then be conducted to see whether these cases are similar to those of Ms. Willenberg and the Esperanza Patient.

“We do think there are more out there,” Dr. Yu said in an interview.

Asked whether we’re still far away from applying these one-off cures to the millions of people taking HIV treatment daily, Dr. Yu responded, “We might be close. That’s the beauty of scientific discovery. We don’t know, but that’s why we need more engagement of the community and care providers to help us.”

The research was funded by the Bill and Melinda Gates Foundation and the National Institutes of Health. Dr. Yu and Dr. Dieffenbach have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

It sounds like a fairy tale steeped in HIV stigma: A woman wakes up one morning and, poof, the HIV she’s been living with for 8 years is gone. But for a 30-year-old Argentinian woman from the aptly named village of Esperanza, that’s close to the truth, according to an article published in Annals of Internal Medicine.

The woman, the so-called Esperanza Patient, appears to be the second person whose immune system cleared the virus without the use of stem cell transplantation. The first was Loreen Willenberg, a California woman who, after living with HIV for 27 years, no longer had replicating HIV in her system. That case was reported last year.

“That’s the beauty of this name, right? Esperanza,” said Xu Yu, MD, principal investigator of the Ragon Institute of Massachusetts General Hospital, the Massachusetts Institute of Technology, and Harvard University, Boston, referring to the Spanish word for “hope.” “This makes us hopeful that a natural cure of HIV is actually possible.”

Two other people appear to have cleared HIV, but only after full replacement of the immune system via stem cell transplantation – the Berlin Patient, Timothy Ray Brown, and the London Patient. Another man, from Brazil, appeared to have an undetectable viral load after receiving intensified antiretroviral treatment plus supplemental vitamin B3.
 

The rarest of the rare

The Esperanza Patient is among a rare group of people living with HIV called elite controllers. These people’s immune systems can control HIV without antiretrovirals. Most elite controllers’ immune systems, however, can’t mount the immune attack necessary to eliminate all replicating HIV from their systems. Instead, their immune systems control the virus without affecting the reservoirs where HIV continues to make copies of itself and can spread.

The Esperanza Patient and Ms. Willenberg, however, appear to be the rarest of the rare. Their own immune systems seem not only to have stopped HIV replication outside of reservoirs but also to have stormed those reservoirs and killed all virus that might have continued to replicate.

The two women are connected in another way: At an HIV conference in 2019, Dr. Yu was presenting data on Ms. Willenberg’s case. At that conference, she met Natalia Laufer, MD, PhD, associate researcher at the Instituto de Investigaciones Biomédicas en Retrovirs y SIDA at the University of Buenos Aires. Dr. Laufer had been studying the Esperanza Patient at the time and asked Dr. Yu whether she and her team at the Ragon Institute could help her sequence the patient’s HIV genome to see whether, indeed, the virus had been spontaneously cleared from the patient’s system.

So that’s what the pair did, in collaboration with several other researchers into cures for HIV. The Esperanza Patient first acquired HIV in 2013, but in the 8 years that followed, results of 10 conventional viral load tests indicated the virus was undetectable (that is, below the level of quantification for standard technology). During that time, the woman’s boyfriend, from whom she had acquired HIV, died of AIDS-defining illnesses. She subsequently married and had a baby. Both her partner and baby are HIV negative. She only received HIV treatment for 6 months while she was pregnant.
 

A fossil record of HIV

Yet, there was still HIV in the woman’s system. Dr. Laufer and Dr. Yu wanted to know whether that HIV was transmissible or whether it was a relic from when HIV was still replicating and was now defective and incapable of replicating. They performed extensive genome sequencing on nearly 1.2 billion cells that Dr. Laufer had taken from the patient’s blood in 2017, 2018, 2019, and 2020, an additional 503 million cells that were from the placenta of the baby she gave birth to in 2020, and 150 million resting CD4 T cells. Proviral sequencing was undertaken of the full DNA of the HIV to detect whether the virus was still intact. The DNA was then analyzed by use of an algorithm and was tested for mutations. The investigators tested the patient’s CD4 cells to determine whether the cells still harbored any latent HIV.

In this way, they conducted a full viral workup using tests that are far more sensitive than the viral load tests the woman had undergone in the clinic. The investigators then assessed the patient’s immune system to see what the various cells of the immune system could tell them about how well her natural immune system could identify and kill HIV. They isolated the Esperanza Patient’s immune cells and subjected those cells to HIV in the lab to see whether the cells could detect and eliminate the virus.

And just to be safe, they checked to make sure there were no antiretroviral drugs in the patient’s system.

What they found was that without treatment, her CD4 count hovered around 1,000 cells – a sign of a functioning immune system. DNA sequences revealed large chunks of missing DNA, and one sequence had an immune-induced hypermutation. In total, seven proviruses were found, but none were capable of replicating. The CD4 cells they evaluated showed no evidence of latent HIV.

In other words, they had uncovered a fossil record.

“These HIV-1 DNA products clearly indicate that this person was infected with HIV-1 in the past and that active cycles of viral replication had occurred at one point,” Dr. Yu and colleagues write in their recent article.

What may be more useful to researchers looking to turn this spontaneous cure into treatment for millions of people living with active HIV was the evidence that the woman’s immune system had trained itself to attack HIV through a number of genetic mutations. What they found, the researchers write, was evidence of “an incomplete seroconversion” – that is, when the patient was acquiring HIV, the infection was stopped in its tracks.

Yet, Dr. Yu and colleagues say that they can’t prove that the woman is fully cured of HIV.

“Although this might sound unsatisfying, it reflects an intrinsic limitation of scientific research,” they write. “Scientific concepts can never be proved through empirical data collection; they can only be disproved.”
 

There are more out there

Are these women the only ones to have spontaneously cleared HIV? That’s the question, said Carl Dieffenbach, PhD, director of the Division of AIDS at the National Institute of Allergy and Infectious Diseases at the National Institutes of Health. Just like they can’t disprove that the women cured themselves, they can’t prove that she and Ms. Willenberg are the only two people to have experienced this cure.

“We’re all struggling with this,” Dr. Dieffenbach told this news organization. “The goal is to get enough of these people so maybe there’s a road map to how to induce, trigger, change immunity. But this could well be a unique event at the time of initiation of infection. We just don’t know.”

What is needed, Dr. Yu said, is for clinicians to reach out to them regarding cases that could mimic the cases of Ms. Willenberg and the Esperanza Patient. Elaborate testing could then be conducted to see whether these cases are similar to those of Ms. Willenberg and the Esperanza Patient.

“We do think there are more out there,” Dr. Yu said in an interview.

Asked whether we’re still far away from applying these one-off cures to the millions of people taking HIV treatment daily, Dr. Yu responded, “We might be close. That’s the beauty of scientific discovery. We don’t know, but that’s why we need more engagement of the community and care providers to help us.”

The research was funded by the Bill and Melinda Gates Foundation and the National Institutes of Health. Dr. Yu and Dr. Dieffenbach have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Drinking coffee or tea is associated with reduced risk for stroke and dementia, with the biggest benefit associated with consuming both beverages, new research suggests.

amenic181/Getty Images

Investigators found that individuals who drank two to three cups of coffee and two to three cups of tea per day had a 30% decrease in incidence of stroke and a 28% lower risk for dementia compared with those who did not.

“From a public health perspective, because regular tea and coffee drinkers comprise such a large proportion of the population and because these beverages tend to be consumed habitually throughout adult life, even small potential health benefits or risks associated with tea and coffee intake may have important public health implications,” the investigators wrote.

The study was published online Nov. 16 in PLOS Medicine.
 

Synergistic effect?

Whereas earlier studies have shown significant health benefits from moderate coffee and tea intake separately, few have examined the effect of drinking both.

Researchers enrolled 365,682 participants from the UK Biobank for the analysis of coffee and tea consumption and stroke and dementia risk and 13,352 participants for the analysis of poststroke dementia.

During a median follow-up of 11.4 years, 2.8% of participants experienced a stroke and 1.4% developed dementia.

After adjustment for confounders, stroke risk was 10% lower in those who drank a half-cup to a cup of coffee per day (P < .001) and 8% lower in those who had more than two cups a day (P = .009). Tea drinkers who had more than two cups a day saw a 16% reduction in stroke (P < .001).

Those who drank both coffee and tea during the day saw the greatest benefit. Drinking two to three cups of coffee and two to three cups of tea lowered stroke risk by 32% (P < .001) and dementia risk by 28% (P = .002).

Drinking both beverages offered significantly greater benefits than drinking just coffee or tea alone, with an 11% lower risk for stroke (P < .001), an 8% lower risk for dementia (P = .001), and 18% lower risk for vascular dementia (P = .001).

Among those participants who experienced a stroke during the follow-up period, drinking two to three cups of coffee was associated with 20% lower risk for poststroke dementia (P = .044), and for those who drank both coffee and tea (half to one cup of coffee and two to three cups of tea per day) the risk for poststroke dementia was lowered by 50% (P =.006).

There was no significant association between coffee and tea consumption and risk for hemorrhagic stroke or Alzheimer’s disease.

The study was funded by the National Natural Science Foundation of China. The authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Drinking coffee or tea is associated with reduced risk for stroke and dementia, with the biggest benefit associated with consuming both beverages, new research suggests.

amenic181/Getty Images

Investigators found that individuals who drank two to three cups of coffee and two to three cups of tea per day had a 30% decrease in incidence of stroke and a 28% lower risk for dementia compared with those who did not.

“From a public health perspective, because regular tea and coffee drinkers comprise such a large proportion of the population and because these beverages tend to be consumed habitually throughout adult life, even small potential health benefits or risks associated with tea and coffee intake may have important public health implications,” the investigators wrote.

The study was published online Nov. 16 in PLOS Medicine.
 

Synergistic effect?

Whereas earlier studies have shown significant health benefits from moderate coffee and tea intake separately, few have examined the effect of drinking both.

Researchers enrolled 365,682 participants from the UK Biobank for the analysis of coffee and tea consumption and stroke and dementia risk and 13,352 participants for the analysis of poststroke dementia.

During a median follow-up of 11.4 years, 2.8% of participants experienced a stroke and 1.4% developed dementia.

After adjustment for confounders, stroke risk was 10% lower in those who drank a half-cup to a cup of coffee per day (P < .001) and 8% lower in those who had more than two cups a day (P = .009). Tea drinkers who had more than two cups a day saw a 16% reduction in stroke (P < .001).

Those who drank both coffee and tea during the day saw the greatest benefit. Drinking two to three cups of coffee and two to three cups of tea lowered stroke risk by 32% (P < .001) and dementia risk by 28% (P = .002).

Drinking both beverages offered significantly greater benefits than drinking just coffee or tea alone, with an 11% lower risk for stroke (P < .001), an 8% lower risk for dementia (P = .001), and 18% lower risk for vascular dementia (P = .001).

Among those participants who experienced a stroke during the follow-up period, drinking two to three cups of coffee was associated with 20% lower risk for poststroke dementia (P = .044), and for those who drank both coffee and tea (half to one cup of coffee and two to three cups of tea per day) the risk for poststroke dementia was lowered by 50% (P =.006).

There was no significant association between coffee and tea consumption and risk for hemorrhagic stroke or Alzheimer’s disease.

The study was funded by the National Natural Science Foundation of China. The authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Drinking coffee or tea is associated with reduced risk for stroke and dementia, with the biggest benefit associated with consuming both beverages, new research suggests.

amenic181/Getty Images

Investigators found that individuals who drank two to three cups of coffee and two to three cups of tea per day had a 30% decrease in incidence of stroke and a 28% lower risk for dementia compared with those who did not.

“From a public health perspective, because regular tea and coffee drinkers comprise such a large proportion of the population and because these beverages tend to be consumed habitually throughout adult life, even small potential health benefits or risks associated with tea and coffee intake may have important public health implications,” the investigators wrote.

The study was published online Nov. 16 in PLOS Medicine.
 

Synergistic effect?

Whereas earlier studies have shown significant health benefits from moderate coffee and tea intake separately, few have examined the effect of drinking both.

Researchers enrolled 365,682 participants from the UK Biobank for the analysis of coffee and tea consumption and stroke and dementia risk and 13,352 participants for the analysis of poststroke dementia.

During a median follow-up of 11.4 years, 2.8% of participants experienced a stroke and 1.4% developed dementia.

After adjustment for confounders, stroke risk was 10% lower in those who drank a half-cup to a cup of coffee per day (P < .001) and 8% lower in those who had more than two cups a day (P = .009). Tea drinkers who had more than two cups a day saw a 16% reduction in stroke (P < .001).

Those who drank both coffee and tea during the day saw the greatest benefit. Drinking two to three cups of coffee and two to three cups of tea lowered stroke risk by 32% (P < .001) and dementia risk by 28% (P = .002).

Drinking both beverages offered significantly greater benefits than drinking just coffee or tea alone, with an 11% lower risk for stroke (P < .001), an 8% lower risk for dementia (P = .001), and 18% lower risk for vascular dementia (P = .001).

Among those participants who experienced a stroke during the follow-up period, drinking two to three cups of coffee was associated with 20% lower risk for poststroke dementia (P = .044), and for those who drank both coffee and tea (half to one cup of coffee and two to three cups of tea per day) the risk for poststroke dementia was lowered by 50% (P =.006).

There was no significant association between coffee and tea consumption and risk for hemorrhagic stroke or Alzheimer’s disease.

The study was funded by the National Natural Science Foundation of China. The authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Holiday travel season is right around the corner, but coronavirus cases have already started to climb. But a new automated texting system could relieve pressure on emergency departments and reduce mortality rates if there were an uptick in COVID-19 this winter.

COVID Watch, a text message–based remote monitoring program developed by the University of Pennsylvania Health System, was associated with a 68% reduction in the risk of death, compared with those who received usual care. This was the main finding of a paper published in the Annals of Internal Medicine.

The investigators also determined that patients who enrolled in the program were more likely to seek care in the ED and when they did, they came in on average 2 days sooner than those who received usual care.

“When our clinical team designed COVID Watch the goal was to facilitate hospital care for patients who require it, while supporting access to care for patients who can safely remain at home,” study author M. Kit Delgado, MD, MS, an assistant professor of emergency medicine and epidemiology at Penn Presbyterian Medical Center in Philadelphia, said in an interview.

Researchers had initially hoped COVID Watch would relieve pressure on EDs, Dr. Delgado said.
 

Significantly lower mortality seen among COVID Watch group

For the study, Dr. Delgado and colleagues enrolled 3,488 patients in COVID Watch and 4,377 in the usual care group to compare outcomes at 30 and 60 days.

“We didn’t include patients who were diagnosed with COVID in the ER or hospital, so this is a lower-risk cohort of patients who test positive in outpatient settings,” Dr. Delgado noted. “Outpatients who received usual care and COVID Watch both had relatively low mortality, but it was significantly lower in those who were in COVID Watch.”

The researchers found that 3 patients in the COVID Watch group died within 30 days of their enrollment, compared with 12 in the control group. At 60 days after enrollment, 5 people within COVID Watch died, compared with 16 not using the system. More than one-third of the deaths in the usual care group occurred outside the hospital, compared with zero deaths among those in COVID Watch.
 

More than half of program participants were Black or Latino

The messaging system also reduced mortality rates among “all major racial and ethnic subgroups,” the researchers said, with more than 50% of the patients enrolled in COVID Watch having been Black or Latino.

“This is important because Black and Hispanic communities have experienced higher exposure and infection rates, decreased access to care, and have had higher mortality rates,” Dr. Delgado said. “Therefore, the results imply that this type of program could play a role in decreasing disparities in COVID outcomes if scaled more broadly.”
 

Outside expert: COVID Watch bring new approach to digital health monitoring

The study not only highlights the efficacy and sustainment of the COVID Watch program, but it sheds light on the possibility of using text message monitoring systems on other chronic disease conditions, said Jamie Faro, PhD, who was not involved in the study.

“It brings a new approach to health monitoring using digital means, which may lessen the burden on health care providers and be more cost effective than usual care approaches,” said Dr. Faro, who is assistant professor at the department of population and quantitative health sciences at the University of Massachusetts, Worcester. “Text messaging, which is used by over 80% of Americans, can allow us to reach a large percentage of the population for remote health care monitoring.”

Researchers of the current study said the findings “reveal a model for outpatient health system management of patients with COVID-19 and possibly other conditions where the early detection of clinical declines is critical.” Dr. Faro said that COVID Watch can have a measurable impact on an outcome that is truly life or death. However, it would be critical to understand how to reach those who either “were not offered or refused to take part in the program.”

The authors of the paper and Dr. Faro had no disclosures.

Holiday travel season is right around the corner, but coronavirus cases have already started to climb. But a new automated texting system could relieve pressure on emergency departments and reduce mortality rates if there were an uptick in COVID-19 this winter.

COVID Watch, a text message–based remote monitoring program developed by the University of Pennsylvania Health System, was associated with a 68% reduction in the risk of death, compared with those who received usual care. This was the main finding of a paper published in the Annals of Internal Medicine.

The investigators also determined that patients who enrolled in the program were more likely to seek care in the ED and when they did, they came in on average 2 days sooner than those who received usual care.

“When our clinical team designed COVID Watch the goal was to facilitate hospital care for patients who require it, while supporting access to care for patients who can safely remain at home,” study author M. Kit Delgado, MD, MS, an assistant professor of emergency medicine and epidemiology at Penn Presbyterian Medical Center in Philadelphia, said in an interview.

Researchers had initially hoped COVID Watch would relieve pressure on EDs, Dr. Delgado said.
 

Significantly lower mortality seen among COVID Watch group

For the study, Dr. Delgado and colleagues enrolled 3,488 patients in COVID Watch and 4,377 in the usual care group to compare outcomes at 30 and 60 days.

“We didn’t include patients who were diagnosed with COVID in the ER or hospital, so this is a lower-risk cohort of patients who test positive in outpatient settings,” Dr. Delgado noted. “Outpatients who received usual care and COVID Watch both had relatively low mortality, but it was significantly lower in those who were in COVID Watch.”

The researchers found that 3 patients in the COVID Watch group died within 30 days of their enrollment, compared with 12 in the control group. At 60 days after enrollment, 5 people within COVID Watch died, compared with 16 not using the system. More than one-third of the deaths in the usual care group occurred outside the hospital, compared with zero deaths among those in COVID Watch.
 

More than half of program participants were Black or Latino

The messaging system also reduced mortality rates among “all major racial and ethnic subgroups,” the researchers said, with more than 50% of the patients enrolled in COVID Watch having been Black or Latino.

“This is important because Black and Hispanic communities have experienced higher exposure and infection rates, decreased access to care, and have had higher mortality rates,” Dr. Delgado said. “Therefore, the results imply that this type of program could play a role in decreasing disparities in COVID outcomes if scaled more broadly.”
 

Outside expert: COVID Watch bring new approach to digital health monitoring

The study not only highlights the efficacy and sustainment of the COVID Watch program, but it sheds light on the possibility of using text message monitoring systems on other chronic disease conditions, said Jamie Faro, PhD, who was not involved in the study.

“It brings a new approach to health monitoring using digital means, which may lessen the burden on health care providers and be more cost effective than usual care approaches,” said Dr. Faro, who is assistant professor at the department of population and quantitative health sciences at the University of Massachusetts, Worcester. “Text messaging, which is used by over 80% of Americans, can allow us to reach a large percentage of the population for remote health care monitoring.”

Researchers of the current study said the findings “reveal a model for outpatient health system management of patients with COVID-19 and possibly other conditions where the early detection of clinical declines is critical.” Dr. Faro said that COVID Watch can have a measurable impact on an outcome that is truly life or death. However, it would be critical to understand how to reach those who either “were not offered or refused to take part in the program.”

The authors of the paper and Dr. Faro had no disclosures.

Holiday travel season is right around the corner, but coronavirus cases have already started to climb. But a new automated texting system could relieve pressure on emergency departments and reduce mortality rates if there were an uptick in COVID-19 this winter.

COVID Watch, a text message–based remote monitoring program developed by the University of Pennsylvania Health System, was associated with a 68% reduction in the risk of death, compared with those who received usual care. This was the main finding of a paper published in the Annals of Internal Medicine.

The investigators also determined that patients who enrolled in the program were more likely to seek care in the ED and when they did, they came in on average 2 days sooner than those who received usual care.

“When our clinical team designed COVID Watch the goal was to facilitate hospital care for patients who require it, while supporting access to care for patients who can safely remain at home,” study author M. Kit Delgado, MD, MS, an assistant professor of emergency medicine and epidemiology at Penn Presbyterian Medical Center in Philadelphia, said in an interview.

Researchers had initially hoped COVID Watch would relieve pressure on EDs, Dr. Delgado said.
 

Significantly lower mortality seen among COVID Watch group

For the study, Dr. Delgado and colleagues enrolled 3,488 patients in COVID Watch and 4,377 in the usual care group to compare outcomes at 30 and 60 days.

“We didn’t include patients who were diagnosed with COVID in the ER or hospital, so this is a lower-risk cohort of patients who test positive in outpatient settings,” Dr. Delgado noted. “Outpatients who received usual care and COVID Watch both had relatively low mortality, but it was significantly lower in those who were in COVID Watch.”

The researchers found that 3 patients in the COVID Watch group died within 30 days of their enrollment, compared with 12 in the control group. At 60 days after enrollment, 5 people within COVID Watch died, compared with 16 not using the system. More than one-third of the deaths in the usual care group occurred outside the hospital, compared with zero deaths among those in COVID Watch.
 

More than half of program participants were Black or Latino

The messaging system also reduced mortality rates among “all major racial and ethnic subgroups,” the researchers said, with more than 50% of the patients enrolled in COVID Watch having been Black or Latino.

“This is important because Black and Hispanic communities have experienced higher exposure and infection rates, decreased access to care, and have had higher mortality rates,” Dr. Delgado said. “Therefore, the results imply that this type of program could play a role in decreasing disparities in COVID outcomes if scaled more broadly.”
 

Outside expert: COVID Watch bring new approach to digital health monitoring

The study not only highlights the efficacy and sustainment of the COVID Watch program, but it sheds light on the possibility of using text message monitoring systems on other chronic disease conditions, said Jamie Faro, PhD, who was not involved in the study.

“It brings a new approach to health monitoring using digital means, which may lessen the burden on health care providers and be more cost effective than usual care approaches,” said Dr. Faro, who is assistant professor at the department of population and quantitative health sciences at the University of Massachusetts, Worcester. “Text messaging, which is used by over 80% of Americans, can allow us to reach a large percentage of the population for remote health care monitoring.”

Researchers of the current study said the findings “reveal a model for outpatient health system management of patients with COVID-19 and possibly other conditions where the early detection of clinical declines is critical.” Dr. Faro said that COVID Watch can have a measurable impact on an outcome that is truly life or death. However, it would be critical to understand how to reach those who either “were not offered or refused to take part in the program.”

The authors of the paper and Dr. Faro had no disclosures.

Just over 1.35 million children under age 12 years have received the COVID-19 vaccine since it was approved on Nov. 2, putting them behind the initial pace set by 12- to 15-year-olds in the spring, based on data from the Centers for Disease Control and Prevention.

Specific figures for children aged 5-11 years are not yet available, but CDC data show that 1.55 million children under the age of 12 years had received at least one dose of COVID-19 vaccine as of Nov. 15, of whom almost 204,000 already had been vaccinated before Nov. 2. For children aged 12-15, the first 2 weeks after approval on May 12 produced almost 2.1 million vaccine initiations, according to the CDC’s COVID Data Tracker.

That dataset reveals several other noteworthy differences between the two age groups in the 10 days after approval:
 

• There were over 7,000 vaccine initiations on the first day in the 12-15 group; the younger group had 32.
• The older children reached 100,000 per day in 3 days; the younger children took 8 days.
• The older group topped 200,000 vaccinations per day on six different days; the younger group didn’t get above 175,000.

Children under 12 made up 27.5% of vaccine initiations in all age groups during the 2 weeks from Nov. 2 to Nov. 15, versus 3.4% for 12- to 15-year-olds and 1.2% for 16- and 17-year-olds, the CDC said, while also reporting that 3.6% of children under age 12 had received at least one dose of the COVID vaccine, compared with 57.8% of those aged 12-15 and 64.4% of 16- to 17-year-olds.

Meanwhile, the first full week of November marked the second consecutive increase in the number of weekly child COVID cases, with 122,000 reported for Nov. 5-11. The number of new cases has now surpassed 100,000 for 14 consecutive weeks, the American Academy of Pediatrics and the Children’s Hospital Association said in their weekly COVID report. That report, which covers state health departments, has not included current information from Alabama, Nebraska, and Texas since the summer.

Regionally, the increases over the past 2 weeks were spread out among the East, the Midwest, and the West, while the decline that had been going on for several weeks in the South has largely come to a halt. The states with the highest percent increases over those 2 weeks are all in New England: Maine, New Hampshire, and Vermont, the AAP and CHA noted. In a separate report, the AAP said that Vermont has the second-highest child vaccination rate (81%) in the country, just behind Massachusetts (82%).

[email protected]

Just over 1.35 million children under age 12 years have received the COVID-19 vaccine since it was approved on Nov. 2, putting them behind the initial pace set by 12- to 15-year-olds in the spring, based on data from the Centers for Disease Control and Prevention.

Specific figures for children aged 5-11 years are not yet available, but CDC data show that 1.55 million children under the age of 12 years had received at least one dose of COVID-19 vaccine as of Nov. 15, of whom almost 204,000 already had been vaccinated before Nov. 2. For children aged 12-15, the first 2 weeks after approval on May 12 produced almost 2.1 million vaccine initiations, according to the CDC’s COVID Data Tracker.

That dataset reveals several other noteworthy differences between the two age groups in the 10 days after approval:
 

• There were over 7,000 vaccine initiations on the first day in the 12-15 group; the younger group had 32.
• The older children reached 100,000 per day in 3 days; the younger children took 8 days.
• The older group topped 200,000 vaccinations per day on six different days; the younger group didn’t get above 175,000.

Children under 12 made up 27.5% of vaccine initiations in all age groups during the 2 weeks from Nov. 2 to Nov. 15, versus 3.4% for 12- to 15-year-olds and 1.2% for 16- and 17-year-olds, the CDC said, while also reporting that 3.6% of children under age 12 had received at least one dose of the COVID vaccine, compared with 57.8% of those aged 12-15 and 64.4% of 16- to 17-year-olds.

Meanwhile, the first full week of November marked the second consecutive increase in the number of weekly child COVID cases, with 122,000 reported for Nov. 5-11. The number of new cases has now surpassed 100,000 for 14 consecutive weeks, the American Academy of Pediatrics and the Children’s Hospital Association said in their weekly COVID report. That report, which covers state health departments, has not included current information from Alabama, Nebraska, and Texas since the summer.

Regionally, the increases over the past 2 weeks were spread out among the East, the Midwest, and the West, while the decline that had been going on for several weeks in the South has largely come to a halt. The states with the highest percent increases over those 2 weeks are all in New England: Maine, New Hampshire, and Vermont, the AAP and CHA noted. In a separate report, the AAP said that Vermont has the second-highest child vaccination rate (81%) in the country, just behind Massachusetts (82%).

[email protected]

Just over 1.35 million children under age 12 years have received the COVID-19 vaccine since it was approved on Nov. 2, putting them behind the initial pace set by 12- to 15-year-olds in the spring, based on data from the Centers for Disease Control and Prevention.

Specific figures for children aged 5-11 years are not yet available, but CDC data show that 1.55 million children under the age of 12 years had received at least one dose of COVID-19 vaccine as of Nov. 15, of whom almost 204,000 already had been vaccinated before Nov. 2. For children aged 12-15, the first 2 weeks after approval on May 12 produced almost 2.1 million vaccine initiations, according to the CDC’s COVID Data Tracker.

That dataset reveals several other noteworthy differences between the two age groups in the 10 days after approval:
 

• There were over 7,000 vaccine initiations on the first day in the 12-15 group; the younger group had 32.
• The older children reached 100,000 per day in 3 days; the younger children took 8 days.
• The older group topped 200,000 vaccinations per day on six different days; the younger group didn’t get above 175,000.

Children under 12 made up 27.5% of vaccine initiations in all age groups during the 2 weeks from Nov. 2 to Nov. 15, versus 3.4% for 12- to 15-year-olds and 1.2% for 16- and 17-year-olds, the CDC said, while also reporting that 3.6% of children under age 12 had received at least one dose of the COVID vaccine, compared with 57.8% of those aged 12-15 and 64.4% of 16- to 17-year-olds.

Meanwhile, the first full week of November marked the second consecutive increase in the number of weekly child COVID cases, with 122,000 reported for Nov. 5-11. The number of new cases has now surpassed 100,000 for 14 consecutive weeks, the American Academy of Pediatrics and the Children’s Hospital Association said in their weekly COVID report. That report, which covers state health departments, has not included current information from Alabama, Nebraska, and Texas since the summer.

Regionally, the increases over the past 2 weeks were spread out among the East, the Midwest, and the West, while the decline that had been going on for several weeks in the South has largely come to a halt. The states with the highest percent increases over those 2 weeks are all in New England: Maine, New Hampshire, and Vermont, the AAP and CHA noted. In a separate report, the AAP said that Vermont has the second-highest child vaccination rate (81%) in the country, just behind Massachusetts (82%).

[email protected]

A recent article published in Nature Methods highlights how hierarchical phase-contrast tomography (HiP-CT), an x-ray phase propagation technique that uses spatial coherence to conduct three-dimensional scans of organs ex vivo, may offer clinicians greater insights into disease processes.

“It is not a clinical technique as such,” said Claire Walsh PhD, a biophysicist and senior research fellow at the Center for Advanced Biomedical Imaging, University College London, and one of the authors of the article. She stressed that HiP-CT is used ex vivo.

“This technology uses x-rays from a fourth-generation x-ray source, the European Synchrotron Radiation Facility’s Extremely Brilliant Source. It is an incredibly bright x-ray source,” said Dr. Walsh in an interview. She said synchrotron x-ray tomography provides a much enhanced view of the lungs of persons who had had COVID-19. “We are looking at a different property of the x-ray waves. We are looking at a phase shift. [HiP-CT] is much, much more sensitive to small changes in the tissue than x-ray or CT. Another massive advantage of HiP-CT is the resolution it offers. The resolution goes down to single cells inside an intact human organ,” she said.

The resolution permits researchers to view blood vessels 5 μm in diameter in an intact lung. In comparison, clinical CT images show blood vessels of around 1 mm in diameter – 200 times larger.

“This technique will help us understand the structure of organs at a more fundamental level,” said Dr. Walsh. She noted that the technology has been valuable in allowing greater understanding of COVID-19 disease process. “This is about building an understanding of what the disease is doing in our bodies. If we don’t understand what the disease is changing structurally, it is very hard to understand how to go about developing treatments,” she said.

There are few synchrotron radiation facilities, so this technology is not widely available. Because of the very high radiation dose, the technique will be used ex vivo for the foreseeable future, Dr. Walsh said.

“The x-ray dose is incredibly high; 2-kg normal CT scans are approximately 100 mG [milligauss]. This is 20,000 times more than a medical CT scan,” explained Dr. Walsh. “We don’t really have plans for this to become an in vivo human technique. We are aiming that we will be able to register clinical scans to HiP-CT in a few cases, and so HiP-CT will become a calibration for analyzing clinical techniques.”

Elsie T. Nguyen, MD, FRCPC, vice-president of the Canadian Society of Thoracic Radiology and associate professor of radiology, University of Toronto, noted that the technology will be valuable in pathology and radiology.

“HiP-CT appears to be an exciting new development that can help physicians, including radiologists, understand pathology that was once beyond the spatial resolution of computed tomography scans,” said Dr. Nguyen in an interview. “The fact that vascular abnormalities particularly relating to severe COVID-19 pneumonia can be visualized to the micron level is very novel and exciting. This will help us understand better from a mechanistic point of view what is happening to the blood vessels that contributes to worse outcomes, like shunting of blood or blood clots, and may have applications for prognostication to predict which patients are likely to survive severe COVID-19 pneumonia.”

Dr. Nguyen noted that HiP-CT could help thoracic radiologists better visualize honeycomb cysts associated with fibrotic interstitial lung disease (ILD). It could help to classify the type of fibrotic ILD and inform patient prognosis.

“Currently, we struggle to differentiate early honeycomb cysts, which are a sign of more advanced lung destruction, from traction bronchiolectasis, that is, dilated airways due to surrounding fibrotic lung, on high-resolution computed tomography of the lungs,” said Dr. Nguyen. She said HiP-CT was very promising and had many applications in addition to visualizing the lungs.

The research was funded by the Chan Zuckerberg Initiative, the ESRF, the UK-MRC, and the Royal Academy of Engineering. Dr. Walsh and Dr. Nguyen have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A recent article published in Nature Methods highlights how hierarchical phase-contrast tomography (HiP-CT), an x-ray phase propagation technique that uses spatial coherence to conduct three-dimensional scans of organs ex vivo, may offer clinicians greater insights into disease processes.

“It is not a clinical technique as such,” said Claire Walsh PhD, a biophysicist and senior research fellow at the Center for Advanced Biomedical Imaging, University College London, and one of the authors of the article. She stressed that HiP-CT is used ex vivo.

“This technology uses x-rays from a fourth-generation x-ray source, the European Synchrotron Radiation Facility’s Extremely Brilliant Source. It is an incredibly bright x-ray source,” said Dr. Walsh in an interview. She said synchrotron x-ray tomography provides a much enhanced view of the lungs of persons who had had COVID-19. “We are looking at a different property of the x-ray waves. We are looking at a phase shift. [HiP-CT] is much, much more sensitive to small changes in the tissue than x-ray or CT. Another massive advantage of HiP-CT is the resolution it offers. The resolution goes down to single cells inside an intact human organ,” she said.

The resolution permits researchers to view blood vessels 5 μm in diameter in an intact lung. In comparison, clinical CT images show blood vessels of around 1 mm in diameter – 200 times larger.

“This technique will help us understand the structure of organs at a more fundamental level,” said Dr. Walsh. She noted that the technology has been valuable in allowing greater understanding of COVID-19 disease process. “This is about building an understanding of what the disease is doing in our bodies. If we don’t understand what the disease is changing structurally, it is very hard to understand how to go about developing treatments,” she said.

There are few synchrotron radiation facilities, so this technology is not widely available. Because of the very high radiation dose, the technique will be used ex vivo for the foreseeable future, Dr. Walsh said.

“The x-ray dose is incredibly high; 2-kg normal CT scans are approximately 100 mG [milligauss]. This is 20,000 times more than a medical CT scan,” explained Dr. Walsh. “We don’t really have plans for this to become an in vivo human technique. We are aiming that we will be able to register clinical scans to HiP-CT in a few cases, and so HiP-CT will become a calibration for analyzing clinical techniques.”

Elsie T. Nguyen, MD, FRCPC, vice-president of the Canadian Society of Thoracic Radiology and associate professor of radiology, University of Toronto, noted that the technology will be valuable in pathology and radiology.

“HiP-CT appears to be an exciting new development that can help physicians, including radiologists, understand pathology that was once beyond the spatial resolution of computed tomography scans,” said Dr. Nguyen in an interview. “The fact that vascular abnormalities particularly relating to severe COVID-19 pneumonia can be visualized to the micron level is very novel and exciting. This will help us understand better from a mechanistic point of view what is happening to the blood vessels that contributes to worse outcomes, like shunting of blood or blood clots, and may have applications for prognostication to predict which patients are likely to survive severe COVID-19 pneumonia.”

Dr. Nguyen noted that HiP-CT could help thoracic radiologists better visualize honeycomb cysts associated with fibrotic interstitial lung disease (ILD). It could help to classify the type of fibrotic ILD and inform patient prognosis.

“Currently, we struggle to differentiate early honeycomb cysts, which are a sign of more advanced lung destruction, from traction bronchiolectasis, that is, dilated airways due to surrounding fibrotic lung, on high-resolution computed tomography of the lungs,” said Dr. Nguyen. She said HiP-CT was very promising and had many applications in addition to visualizing the lungs.

The research was funded by the Chan Zuckerberg Initiative, the ESRF, the UK-MRC, and the Royal Academy of Engineering. Dr. Walsh and Dr. Nguyen have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A recent article published in Nature Methods highlights how hierarchical phase-contrast tomography (HiP-CT), an x-ray phase propagation technique that uses spatial coherence to conduct three-dimensional scans of organs ex vivo, may offer clinicians greater insights into disease processes.

“It is not a clinical technique as such,” said Claire Walsh PhD, a biophysicist and senior research fellow at the Center for Advanced Biomedical Imaging, University College London, and one of the authors of the article. She stressed that HiP-CT is used ex vivo.

“This technology uses x-rays from a fourth-generation x-ray source, the European Synchrotron Radiation Facility’s Extremely Brilliant Source. It is an incredibly bright x-ray source,” said Dr. Walsh in an interview. She said synchrotron x-ray tomography provides a much enhanced view of the lungs of persons who had had COVID-19. “We are looking at a different property of the x-ray waves. We are looking at a phase shift. [HiP-CT] is much, much more sensitive to small changes in the tissue than x-ray or CT. Another massive advantage of HiP-CT is the resolution it offers. The resolution goes down to single cells inside an intact human organ,” she said.

The resolution permits researchers to view blood vessels 5 μm in diameter in an intact lung. In comparison, clinical CT images show blood vessels of around 1 mm in diameter – 200 times larger.

“This technique will help us understand the structure of organs at a more fundamental level,” said Dr. Walsh. She noted that the technology has been valuable in allowing greater understanding of COVID-19 disease process. “This is about building an understanding of what the disease is doing in our bodies. If we don’t understand what the disease is changing structurally, it is very hard to understand how to go about developing treatments,” she said.

There are few synchrotron radiation facilities, so this technology is not widely available. Because of the very high radiation dose, the technique will be used ex vivo for the foreseeable future, Dr. Walsh said.

“The x-ray dose is incredibly high; 2-kg normal CT scans are approximately 100 mG [milligauss]. This is 20,000 times more than a medical CT scan,” explained Dr. Walsh. “We don’t really have plans for this to become an in vivo human technique. We are aiming that we will be able to register clinical scans to HiP-CT in a few cases, and so HiP-CT will become a calibration for analyzing clinical techniques.”

Elsie T. Nguyen, MD, FRCPC, vice-president of the Canadian Society of Thoracic Radiology and associate professor of radiology, University of Toronto, noted that the technology will be valuable in pathology and radiology.

“HiP-CT appears to be an exciting new development that can help physicians, including radiologists, understand pathology that was once beyond the spatial resolution of computed tomography scans,” said Dr. Nguyen in an interview. “The fact that vascular abnormalities particularly relating to severe COVID-19 pneumonia can be visualized to the micron level is very novel and exciting. This will help us understand better from a mechanistic point of view what is happening to the blood vessels that contributes to worse outcomes, like shunting of blood or blood clots, and may have applications for prognostication to predict which patients are likely to survive severe COVID-19 pneumonia.”

Dr. Nguyen noted that HiP-CT could help thoracic radiologists better visualize honeycomb cysts associated with fibrotic interstitial lung disease (ILD). It could help to classify the type of fibrotic ILD and inform patient prognosis.

“Currently, we struggle to differentiate early honeycomb cysts, which are a sign of more advanced lung destruction, from traction bronchiolectasis, that is, dilated airways due to surrounding fibrotic lung, on high-resolution computed tomography of the lungs,” said Dr. Nguyen. She said HiP-CT was very promising and had many applications in addition to visualizing the lungs.

The research was funded by the Chan Zuckerberg Initiative, the ESRF, the UK-MRC, and the Royal Academy of Engineering. Dr. Walsh and Dr. Nguyen have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

A high dose of the purified form of eicosapentaenoic acid, icosapent ethyl (Vascepa, Amarin), failed to significantly reduce hospitalizations or death in patients infected with COVID-19 in the PREPARE-IT 2 study.

The study did, however, show a favorable trend, with a 16% reduction in the primary endpoint of death or an indication for hospitalization. All secondary endpoints were also numerically reduced, but none reached statistical significance.

The product was also well tolerated over the 28 days of the study period, even though a new high-loading dose was used, with no increase in atrial fibrillation or bleeding or other adverse events versus placebo, although there was a slightly higher rate of discontinuation.

The trial was presented at the American Heart Association scientific sessions on Nov. 15 by Rafael Díaz, MD, director of Estudios Clínicos Latinoamérica in Rosario, Argentina.

“Larger, randomized trials powered for a relative risk reduction of around 15% with icosapent ethyl are needed to establish whether or not this product may have a role in the management of COVID-positive outpatients,” Dr. Diaz concluded.
 

‘Intriguing signals’

Commenting on the study, Manesh Patel, MD, chief of the division of cardiology and codirector of the Heart Center at Duke University, Durham, N.C., and chair of the Scientific Sessions scientific program, said that: “Certainly there are some intriguing signals.”

“I think the trend is valuable, but do we need a larger trial to confirm a benefit? I will leave that to the clinical community to decide,” Dr. Patel added. “But it is hard to power a trial to get that answer, and the world of COVID has changed since this trial started with vaccines now available and new therapeutics coming. So, there’s going to be a competing landscape.”

Discussing the trial at an AHA news briefing, Erin Michos, MD, associate professor of medicine within the division of cardiology at Johns Hopkins University, Baltimore, said: “Results showed that everything trended in the right direction, but did not reach statistical significance largely because there were fewer events than anticipated. COVID hospitalizations are going down because of the broad adoption of vaccines, which meant that this study didn’t quite meet its endpoint.”

But, she added: “Reassuringly, even with the higher loading dose, there was no increased risk of [atrial fibrillation] when used for just 28 days, and no increased risk in bleeding, so there was very good safety.”

“We need a larger trial to really definitely show whether icosapent ethyl can or cannot help COVID-positive outpatients, but I think a better prevention strategy would be the broad adoption of vaccinations globally,” Dr. Michos concluded.
 

‘A pretty big ask’

Donald Lloyd-Jones, MD, AHA president and designated discussant at the late-breaking science session, congratulated the investigators on conducting “a very nice pragmatic trial in the midst of the COVID pandemic.”

Dr. Lloyd-Jones concluded that the broad range of potentially beneficial actions of icosapent ethyl – including antitriglyceride, anti-inflammatory, antioxidant, and antithrombotic effects – leads to the possibility of it helping in COVID, but he added that “this is a pretty big ask for a fish oil supplement given short term.”

Presenting the study, Dr. Diaz noted that there are limited options for the outpatient treatment of patients with COVID-19 infection, and it is believed that inflammation plays a major role in worsening the severity of the infection.

He pointed out that previous data support a potential role of omega-3 fatty acids in reducing inflammation and infection, and that icosapent ethyl has shown a reduction in major cardiovascular events in the REDUCE-IT trial, with the mechanism thought to involve anti-inflammatory effects.

In the first trial to investigate the role of icosapent ethyl in COVID-19, PREPARE-IT, the product did not prevent uninfected individuals at risk from COVID from becoming infected with the virus, but there was no increase in side effects versus placebo with use over a 60-day period.

A small study last year in 100 COVID-positive patients showed icosapent ethyl reduced C-reactive protein, an inflammatory marker, and also improved symptoms.

PREPARE-IT 2, a pragmatic web-based trial, was conducted to investigate whether icosapent ethyl in nonhospitalized patients with a positive diagnosis of COVID-19 could reduce hospitalization rates and complications.

The trial enrolled 2,052 patients (mean age, 50 years), of whom 1,010 were allocated to the active group and 1,042 to the placebo group. Inclusion criteria included individuals aged 40 years or older with a confirmed COVID-19 diagnosis and no more than 7 days from the onset of symptoms and without a clear indication for hospitalization.

Patients who were allocated to the active arm received icosapent ethyl at a dose of 8 g (four capsules every 12 hours, morning and evening) for the first 3 days, followed by 4 g (two capsules every 12 hours) thereafter (days 4-28).

The primary outcome, COVID-19–related hospitalization (indication for hospitalization or hospitalization) or death at 28 days, occurred in 11.16% of the active group and 13.69% of the placebo group, giving a hazard ratio of 0.84 (95% confidence interval, 0.65-1.08; P = .166)

Secondary outcomes showed similar positive trends, but none were significant. These included: death or still hospitalized at 28 days (HR, 0.74), major events (MI, stroke, death; HR, 0.38), and total mortality (HR, 0.52).

In terms of safety, there was no significant difference in total adverse events between the two groups (16.5% in the active group vs. 14.8% in the placebo group). The most common adverse effects were constipation (2.7%), diarrhea (7.2%), and nausea (4%), but these were not significantly different from placebo. There were, however, more discontinuations in the active group (7% vs. 4%).

Dr. Diaz pointed out that the PREPARE-IT 2 trial was started in May 2020, when there wasn’t much known about the COVID-19 condition, and there were no vaccines or treatments, so hospitalization rates were high.

“We were hoping to see a 25%-30% reduction in hospitalizations with icosapent ethyl, and the trial was powered for that sort of reduction, but today we know we can expect a more modest reduction of about 15%,” Dr. Diaz concluded. “But to show that, we need a much larger trial with 8,000 or 9,000 patients, and that will be much more difficult to conduct.”

The PREPARE-IT 2 study was funded by Amarin. Dr. Diaz has received grants from Dalcor, Amarin, PHRI, and Lepetit.

A version of this article first appeared on Medscape.com.

A high dose of the purified form of eicosapentaenoic acid, icosapent ethyl (Vascepa, Amarin), failed to significantly reduce hospitalizations or death in patients infected with COVID-19 in the PREPARE-IT 2 study.

The study did, however, show a favorable trend, with a 16% reduction in the primary endpoint of death or an indication for hospitalization. All secondary endpoints were also numerically reduced, but none reached statistical significance.

The product was also well tolerated over the 28 days of the study period, even though a new high-loading dose was used, with no increase in atrial fibrillation or bleeding or other adverse events versus placebo, although there was a slightly higher rate of discontinuation.

The trial was presented at the American Heart Association scientific sessions on Nov. 15 by Rafael Díaz, MD, director of Estudios Clínicos Latinoamérica in Rosario, Argentina.

“Larger, randomized trials powered for a relative risk reduction of around 15% with icosapent ethyl are needed to establish whether or not this product may have a role in the management of COVID-positive outpatients,” Dr. Diaz concluded.
 

‘Intriguing signals’

Commenting on the study, Manesh Patel, MD, chief of the division of cardiology and codirector of the Heart Center at Duke University, Durham, N.C., and chair of the Scientific Sessions scientific program, said that: “Certainly there are some intriguing signals.”

“I think the trend is valuable, but do we need a larger trial to confirm a benefit? I will leave that to the clinical community to decide,” Dr. Patel added. “But it is hard to power a trial to get that answer, and the world of COVID has changed since this trial started with vaccines now available and new therapeutics coming. So, there’s going to be a competing landscape.”

Discussing the trial at an AHA news briefing, Erin Michos, MD, associate professor of medicine within the division of cardiology at Johns Hopkins University, Baltimore, said: “Results showed that everything trended in the right direction, but did not reach statistical significance largely because there were fewer events than anticipated. COVID hospitalizations are going down because of the broad adoption of vaccines, which meant that this study didn’t quite meet its endpoint.”

But, she added: “Reassuringly, even with the higher loading dose, there was no increased risk of [atrial fibrillation] when used for just 28 days, and no increased risk in bleeding, so there was very good safety.”

“We need a larger trial to really definitely show whether icosapent ethyl can or cannot help COVID-positive outpatients, but I think a better prevention strategy would be the broad adoption of vaccinations globally,” Dr. Michos concluded.
 

‘A pretty big ask’

Donald Lloyd-Jones, MD, AHA president and designated discussant at the late-breaking science session, congratulated the investigators on conducting “a very nice pragmatic trial in the midst of the COVID pandemic.”

Dr. Lloyd-Jones concluded that the broad range of potentially beneficial actions of icosapent ethyl – including antitriglyceride, anti-inflammatory, antioxidant, and antithrombotic effects – leads to the possibility of it helping in COVID, but he added that “this is a pretty big ask for a fish oil supplement given short term.”

Presenting the study, Dr. Diaz noted that there are limited options for the outpatient treatment of patients with COVID-19 infection, and it is believed that inflammation plays a major role in worsening the severity of the infection.

He pointed out that previous data support a potential role of omega-3 fatty acids in reducing inflammation and infection, and that icosapent ethyl has shown a reduction in major cardiovascular events in the REDUCE-IT trial, with the mechanism thought to involve anti-inflammatory effects.

In the first trial to investigate the role of icosapent ethyl in COVID-19, PREPARE-IT, the product did not prevent uninfected individuals at risk from COVID from becoming infected with the virus, but there was no increase in side effects versus placebo with use over a 60-day period.

A small study last year in 100 COVID-positive patients showed icosapent ethyl reduced C-reactive protein, an inflammatory marker, and also improved symptoms.

PREPARE-IT 2, a pragmatic web-based trial, was conducted to investigate whether icosapent ethyl in nonhospitalized patients with a positive diagnosis of COVID-19 could reduce hospitalization rates and complications.

The trial enrolled 2,052 patients (mean age, 50 years), of whom 1,010 were allocated to the active group and 1,042 to the placebo group. Inclusion criteria included individuals aged 40 years or older with a confirmed COVID-19 diagnosis and no more than 7 days from the onset of symptoms and without a clear indication for hospitalization.

Patients who were allocated to the active arm received icosapent ethyl at a dose of 8 g (four capsules every 12 hours, morning and evening) for the first 3 days, followed by 4 g (two capsules every 12 hours) thereafter (days 4-28).

The primary outcome, COVID-19–related hospitalization (indication for hospitalization or hospitalization) or death at 28 days, occurred in 11.16% of the active group and 13.69% of the placebo group, giving a hazard ratio of 0.84 (95% confidence interval, 0.65-1.08; P = .166)

Secondary outcomes showed similar positive trends, but none were significant. These included: death or still hospitalized at 28 days (HR, 0.74), major events (MI, stroke, death; HR, 0.38), and total mortality (HR, 0.52).

In terms of safety, there was no significant difference in total adverse events between the two groups (16.5% in the active group vs. 14.8% in the placebo group). The most common adverse effects were constipation (2.7%), diarrhea (7.2%), and nausea (4%), but these were not significantly different from placebo. There were, however, more discontinuations in the active group (7% vs. 4%).

Dr. Diaz pointed out that the PREPARE-IT 2 trial was started in May 2020, when there wasn’t much known about the COVID-19 condition, and there were no vaccines or treatments, so hospitalization rates were high.

“We were hoping to see a 25%-30% reduction in hospitalizations with icosapent ethyl, and the trial was powered for that sort of reduction, but today we know we can expect a more modest reduction of about 15%,” Dr. Diaz concluded. “But to show that, we need a much larger trial with 8,000 or 9,000 patients, and that will be much more difficult to conduct.”

The PREPARE-IT 2 study was funded by Amarin. Dr. Diaz has received grants from Dalcor, Amarin, PHRI, and Lepetit.

A version of this article first appeared on Medscape.com.

A high dose of the purified form of eicosapentaenoic acid, icosapent ethyl (Vascepa, Amarin), failed to significantly reduce hospitalizations or death in patients infected with COVID-19 in the PREPARE-IT 2 study.

The study did, however, show a favorable trend, with a 16% reduction in the primary endpoint of death or an indication for hospitalization. All secondary endpoints were also numerically reduced, but none reached statistical significance.

The product was also well tolerated over the 28 days of the study period, even though a new high-loading dose was used, with no increase in atrial fibrillation or bleeding or other adverse events versus placebo, although there was a slightly higher rate of discontinuation.

The trial was presented at the American Heart Association scientific sessions on Nov. 15 by Rafael Díaz, MD, director of Estudios Clínicos Latinoamérica in Rosario, Argentina.

“Larger, randomized trials powered for a relative risk reduction of around 15% with icosapent ethyl are needed to establish whether or not this product may have a role in the management of COVID-positive outpatients,” Dr. Diaz concluded.
 

‘Intriguing signals’

Commenting on the study, Manesh Patel, MD, chief of the division of cardiology and codirector of the Heart Center at Duke University, Durham, N.C., and chair of the Scientific Sessions scientific program, said that: “Certainly there are some intriguing signals.”

“I think the trend is valuable, but do we need a larger trial to confirm a benefit? I will leave that to the clinical community to decide,” Dr. Patel added. “But it is hard to power a trial to get that answer, and the world of COVID has changed since this trial started with vaccines now available and new therapeutics coming. So, there’s going to be a competing landscape.”

Discussing the trial at an AHA news briefing, Erin Michos, MD, associate professor of medicine within the division of cardiology at Johns Hopkins University, Baltimore, said: “Results showed that everything trended in the right direction, but did not reach statistical significance largely because there were fewer events than anticipated. COVID hospitalizations are going down because of the broad adoption of vaccines, which meant that this study didn’t quite meet its endpoint.”

But, she added: “Reassuringly, even with the higher loading dose, there was no increased risk of [atrial fibrillation] when used for just 28 days, and no increased risk in bleeding, so there was very good safety.”

“We need a larger trial to really definitely show whether icosapent ethyl can or cannot help COVID-positive outpatients, but I think a better prevention strategy would be the broad adoption of vaccinations globally,” Dr. Michos concluded.
 

‘A pretty big ask’

Donald Lloyd-Jones, MD, AHA president and designated discussant at the late-breaking science session, congratulated the investigators on conducting “a very nice pragmatic trial in the midst of the COVID pandemic.”

Dr. Lloyd-Jones concluded that the broad range of potentially beneficial actions of icosapent ethyl – including antitriglyceride, anti-inflammatory, antioxidant, and antithrombotic effects – leads to the possibility of it helping in COVID, but he added that “this is a pretty big ask for a fish oil supplement given short term.”

Presenting the study, Dr. Diaz noted that there are limited options for the outpatient treatment of patients with COVID-19 infection, and it is believed that inflammation plays a major role in worsening the severity of the infection.

He pointed out that previous data support a potential role of omega-3 fatty acids in reducing inflammation and infection, and that icosapent ethyl has shown a reduction in major cardiovascular events in the REDUCE-IT trial, with the mechanism thought to involve anti-inflammatory effects.

In the first trial to investigate the role of icosapent ethyl in COVID-19, PREPARE-IT, the product did not prevent uninfected individuals at risk from COVID from becoming infected with the virus, but there was no increase in side effects versus placebo with use over a 60-day period.

A small study last year in 100 COVID-positive patients showed icosapent ethyl reduced C-reactive protein, an inflammatory marker, and also improved symptoms.

PREPARE-IT 2, a pragmatic web-based trial, was conducted to investigate whether icosapent ethyl in nonhospitalized patients with a positive diagnosis of COVID-19 could reduce hospitalization rates and complications.

The trial enrolled 2,052 patients (mean age, 50 years), of whom 1,010 were allocated to the active group and 1,042 to the placebo group. Inclusion criteria included individuals aged 40 years or older with a confirmed COVID-19 diagnosis and no more than 7 days from the onset of symptoms and without a clear indication for hospitalization.

Patients who were allocated to the active arm received icosapent ethyl at a dose of 8 g (four capsules every 12 hours, morning and evening) for the first 3 days, followed by 4 g (two capsules every 12 hours) thereafter (days 4-28).

The primary outcome, COVID-19–related hospitalization (indication for hospitalization or hospitalization) or death at 28 days, occurred in 11.16% of the active group and 13.69% of the placebo group, giving a hazard ratio of 0.84 (95% confidence interval, 0.65-1.08; P = .166)

Secondary outcomes showed similar positive trends, but none were significant. These included: death or still hospitalized at 28 days (HR, 0.74), major events (MI, stroke, death; HR, 0.38), and total mortality (HR, 0.52).

In terms of safety, there was no significant difference in total adverse events between the two groups (16.5% in the active group vs. 14.8% in the placebo group). The most common adverse effects were constipation (2.7%), diarrhea (7.2%), and nausea (4%), but these were not significantly different from placebo. There were, however, more discontinuations in the active group (7% vs. 4%).

Dr. Diaz pointed out that the PREPARE-IT 2 trial was started in May 2020, when there wasn’t much known about the COVID-19 condition, and there were no vaccines or treatments, so hospitalization rates were high.

“We were hoping to see a 25%-30% reduction in hospitalizations with icosapent ethyl, and the trial was powered for that sort of reduction, but today we know we can expect a more modest reduction of about 15%,” Dr. Diaz concluded. “But to show that, we need a much larger trial with 8,000 or 9,000 patients, and that will be much more difficult to conduct.”

The PREPARE-IT 2 study was funded by Amarin. Dr. Diaz has received grants from Dalcor, Amarin, PHRI, and Lepetit.

A version of this article first appeared on Medscape.com.

Among active-duty men who have sex with men (MSM), Black and Latino military members are at least three times as likely to be prescribed HIV pre-exposure prophylaxis (PrEP) than their White counterparts, according to new survey results.

“In the civilian population, we see a lot of challenges and barriers to [accessing PrEP] in our high-risk populations – populations in the MSM sphere that are people of color,” study author Colten Staten, RN, a first lieutenant in the army at Walter Reed National Military Medical Center in Bethesda, Md., told this news organization. Because all active-duty service members have free medical care and prescriptions through the Military Health System, the findings demonstrate “what happens when access becomes less of an issue in regard to receiving PrEP prescriptions,” he noted.

The survey, which was presented at the Association of Nurses in AIDS Care 2021 conference, was available for 5 days in 2020. All participants were at least 18 years old, identified as MSM, and were active-duty members of the United States military.

Of the 354 men included in the study, 37.6% were White, 25.4% were Black, 20.3% were identified as Latino, 6.5% were Asian/Pacific Islanders, and 5.6% were Native Americans. In addition, 69.5% identified as gay, 23.4% identified as bisexual, and 7% said they were straight. And 17.2% had a partner who disclosed he was HIV positive, but 19.2% did not know the status of their partner.

Black participants were three times more likely to have been prescribed PrEP than White service members (P < .001). Similarly, Latino respondents were 3.6 times more likely to be prescribed PrEP than their White counterparts (P = .003). Participants whose partner disclosed an HIV-positive status were 7.1 times more likely to receive a PrEP prescription than someone who did not know the status of their partner (P = .013), and bisexual respondents were 2.1 times less likely to have received a PrEP prescription than respondents who identified as gay (P = .04).

While the study demonstrates that at-risk populations are receiving PrEP in the military, research suggests that PrEP is still underprescribed in this population, Mr. Staten said. A 2018 study published in Morbidity and Mortality Weekly Report found that 20.9% of U.S. service members reported a high risk of HIV infection, and an estimated 12,000 individuals in the military qualify for a PrEP prescription. Yet, from Feb. 1, 2014, to June 10, 2016, only 759 service members were prescribed Truvada. The 2018 report found that approximately 350 active-duty service members are diagnosed with HIV every year, with a disproportionate number of new infections occurring in Black individuals.

While the study suggests prescriptions are reaching target populations, “the most concerning finding is that it is not happening in the robust nature that we need,” said Justin Alves, RN, ACRN, CARN, a nurse at Boston Medical Center in Massachusetts who was not involved with the study, in an interview. “This is the start of a lot of research that needs to happen, because not only does the study shed light on people who are serving in the military, but it also sheds light on unique vulnerable populations that we have a hard time capturing and helping in general healthcare settings,” Mr. Alves said.

Mr. Staten agreed that more research is needed to identify additional barriers to care in the military. Additionally, including more information on sexual history in the yearly physical all active-duty service members complete could also help identify more individuals who would benefit from a PrEP prescription.  

“There is no screening for sexual health, as far as the MSM experience,” Mr. Staten said. And he suggested that more questions around sexuality should be included in the screening process. That could help spur more open conversations between patients and providers to bridge gaps in access and care.

Mr. Staten is an active-duty service member. Mr. Alves has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Among active-duty men who have sex with men (MSM), Black and Latino military members are at least three times as likely to be prescribed HIV pre-exposure prophylaxis (PrEP) than their White counterparts, according to new survey results.

“In the civilian population, we see a lot of challenges and barriers to [accessing PrEP] in our high-risk populations – populations in the MSM sphere that are people of color,” study author Colten Staten, RN, a first lieutenant in the army at Walter Reed National Military Medical Center in Bethesda, Md., told this news organization. Because all active-duty service members have free medical care and prescriptions through the Military Health System, the findings demonstrate “what happens when access becomes less of an issue in regard to receiving PrEP prescriptions,” he noted.

The survey, which was presented at the Association of Nurses in AIDS Care 2021 conference, was available for 5 days in 2020. All participants were at least 18 years old, identified as MSM, and were active-duty members of the United States military.

Of the 354 men included in the study, 37.6% were White, 25.4% were Black, 20.3% were identified as Latino, 6.5% were Asian/Pacific Islanders, and 5.6% were Native Americans. In addition, 69.5% identified as gay, 23.4% identified as bisexual, and 7% said they were straight. And 17.2% had a partner who disclosed he was HIV positive, but 19.2% did not know the status of their partner.

Black participants were three times more likely to have been prescribed PrEP than White service members (P < .001). Similarly, Latino respondents were 3.6 times more likely to be prescribed PrEP than their White counterparts (P = .003). Participants whose partner disclosed an HIV-positive status were 7.1 times more likely to receive a PrEP prescription than someone who did not know the status of their partner (P = .013), and bisexual respondents were 2.1 times less likely to have received a PrEP prescription than respondents who identified as gay (P = .04).

While the study demonstrates that at-risk populations are receiving PrEP in the military, research suggests that PrEP is still underprescribed in this population, Mr. Staten said. A 2018 study published in Morbidity and Mortality Weekly Report found that 20.9% of U.S. service members reported a high risk of HIV infection, and an estimated 12,000 individuals in the military qualify for a PrEP prescription. Yet, from Feb. 1, 2014, to June 10, 2016, only 759 service members were prescribed Truvada. The 2018 report found that approximately 350 active-duty service members are diagnosed with HIV every year, with a disproportionate number of new infections occurring in Black individuals.

While the study suggests prescriptions are reaching target populations, “the most concerning finding is that it is not happening in the robust nature that we need,” said Justin Alves, RN, ACRN, CARN, a nurse at Boston Medical Center in Massachusetts who was not involved with the study, in an interview. “This is the start of a lot of research that needs to happen, because not only does the study shed light on people who are serving in the military, but it also sheds light on unique vulnerable populations that we have a hard time capturing and helping in general healthcare settings,” Mr. Alves said.

Mr. Staten agreed that more research is needed to identify additional barriers to care in the military. Additionally, including more information on sexual history in the yearly physical all active-duty service members complete could also help identify more individuals who would benefit from a PrEP prescription.  

“There is no screening for sexual health, as far as the MSM experience,” Mr. Staten said. And he suggested that more questions around sexuality should be included in the screening process. That could help spur more open conversations between patients and providers to bridge gaps in access and care.

Mr. Staten is an active-duty service member. Mr. Alves has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Among active-duty men who have sex with men (MSM), Black and Latino military members are at least three times as likely to be prescribed HIV pre-exposure prophylaxis (PrEP) than their White counterparts, according to new survey results.

“In the civilian population, we see a lot of challenges and barriers to [accessing PrEP] in our high-risk populations – populations in the MSM sphere that are people of color,” study author Colten Staten, RN, a first lieutenant in the army at Walter Reed National Military Medical Center in Bethesda, Md., told this news organization. Because all active-duty service members have free medical care and prescriptions through the Military Health System, the findings demonstrate “what happens when access becomes less of an issue in regard to receiving PrEP prescriptions,” he noted.

The survey, which was presented at the Association of Nurses in AIDS Care 2021 conference, was available for 5 days in 2020. All participants were at least 18 years old, identified as MSM, and were active-duty members of the United States military.

Of the 354 men included in the study, 37.6% were White, 25.4% were Black, 20.3% were identified as Latino, 6.5% were Asian/Pacific Islanders, and 5.6% were Native Americans. In addition, 69.5% identified as gay, 23.4% identified as bisexual, and 7% said they were straight. And 17.2% had a partner who disclosed he was HIV positive, but 19.2% did not know the status of their partner.

Black participants were three times more likely to have been prescribed PrEP than White service members (P < .001). Similarly, Latino respondents were 3.6 times more likely to be prescribed PrEP than their White counterparts (P = .003). Participants whose partner disclosed an HIV-positive status were 7.1 times more likely to receive a PrEP prescription than someone who did not know the status of their partner (P = .013), and bisexual respondents were 2.1 times less likely to have received a PrEP prescription than respondents who identified as gay (P = .04).

While the study demonstrates that at-risk populations are receiving PrEP in the military, research suggests that PrEP is still underprescribed in this population, Mr. Staten said. A 2018 study published in Morbidity and Mortality Weekly Report found that 20.9% of U.S. service members reported a high risk of HIV infection, and an estimated 12,000 individuals in the military qualify for a PrEP prescription. Yet, from Feb. 1, 2014, to June 10, 2016, only 759 service members were prescribed Truvada. The 2018 report found that approximately 350 active-duty service members are diagnosed with HIV every year, with a disproportionate number of new infections occurring in Black individuals.

While the study suggests prescriptions are reaching target populations, “the most concerning finding is that it is not happening in the robust nature that we need,” said Justin Alves, RN, ACRN, CARN, a nurse at Boston Medical Center in Massachusetts who was not involved with the study, in an interview. “This is the start of a lot of research that needs to happen, because not only does the study shed light on people who are serving in the military, but it also sheds light on unique vulnerable populations that we have a hard time capturing and helping in general healthcare settings,” Mr. Alves said.

Mr. Staten agreed that more research is needed to identify additional barriers to care in the military. Additionally, including more information on sexual history in the yearly physical all active-duty service members complete could also help identify more individuals who would benefit from a PrEP prescription.  

“There is no screening for sexual health, as far as the MSM experience,” Mr. Staten said. And he suggested that more questions around sexuality should be included in the screening process. That could help spur more open conversations between patients and providers to bridge gaps in access and care.

Mr. Staten is an active-duty service member. Mr. Alves has reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Insufficient HIV-related nursing education is a major barrier to implementing HIV screening efforts in emergency departments (EDs), according to a national survey of ED nurses. Nearly 43% of respondents said they had received “little” or “very little” HIV education as part of their professional development and practice.

This lack of continuing HIV education “often translated into attitudes that did not support the policy” of routine HIV screening in EDs, lead author Candace Elam, DNP, a family nurse practitioner at the Institute of Family Health in the Bronx, New York City, told this news organization. “But more than individual attitudes, what came out most clearly in the research was that organizational support for HIV screening in EDs was the one factor that could make or break whether an emergency nurse performs HIV screening,” she said. This includes working routine HIV screening into ED workflows and providing resources to streamline screening and testing efforts.

In 2006, the Centers for Disease Control and Prevention released guidance recommending routine HIV screening in all healthcare settings, including urgent care and EDs. Elam, who conducted the research as a student at Rutgers University School of Nursing in New Brunswick, N.J., noticed during her time as an ED nurse that, while her department had a policy supporting routine HIV screening, the practice was not consistent across all nursing staff. To find out how HIV screening varied nationally, Elam ran a national survey from Oct. through Dec. 2020, recruiting participants both by email outreach and Facebook.

In the 30- to 45-minute survey, respondents reported:

• Demographic information
• Knowledge of the CDC HIV screening recommendations
• Workplace HIV screening policy
• Self-reported performance of HIV screening
• Beliefs and attitudes pertaining to HIV screening

Overall, 371 individuals from 43 states filled out at least some part of the survey, and 171 individuals completed it. Of the 251 individuals who answered whether their EDs routinely conducted HIV screening, 76.9% responded affirmatively. Overall, 28.5% of respondents thought HIV screening was “not important” or “not at all important.” Nearly half – 47.6% – reported never offering HIV testing to all eligible patients regardless of risk factors, and only 14.3% reported offering testing all of the time. Only 25% of participants said they received “adequate” or “a lot” of HIV-related nursing education, and 42.9% reported “little” or “very little” education.

“For the most part, those of us working in hospitals, all the education that we get about HIV took place in school,” Elam said. “So, if you went to school in the early 2000s or in the 1990s, you don’t know much else.” Elam noted that she keeps informed on HIV research issues because it is an area of interest, but the hospital she had worked at did not contribute much to her knowledge.

Elam also found that in practice there were several barriers to performing screening, such as lack of availability of a dedicated HIV educator, tester, or counselors; not knowing where to refer patients who had a positive HIV test result; and insufficient time to address positive HIV test results in ED practice.

“A lot of these things are outside an individual nurse’s control,” said Elam, and can result in missing patients who would benefit from care. Lisa Leimer, RN, a nurse at Primary Health Care in Des Moines, works with patients after they have been diagnosed with HIV, but noted that many of her patients could have been identified earlier. “Once we get someone, you look back at medical records and you see that they have been in and out of the hospital,” she said. “There’s been multiple encounters,” she said.

Prioritizing HIV screening in all healthcare settings and including HIV education for all medical professionals – not just nurses – could help in the continuing battle against HIV. “So much has changed in the world of HIV,” she said. “We’re trying to end the epidemic, and it could happen if we identified, diagnosed, and treated the people that are living with it.”

Elam and Leimer have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Insufficient HIV-related nursing education is a major barrier to implementing HIV screening efforts in emergency departments (EDs), according to a national survey of ED nurses. Nearly 43% of respondents said they had received “little” or “very little” HIV education as part of their professional development and practice.

This lack of continuing HIV education “often translated into attitudes that did not support the policy” of routine HIV screening in EDs, lead author Candace Elam, DNP, a family nurse practitioner at the Institute of Family Health in the Bronx, New York City, told this news organization. “But more than individual attitudes, what came out most clearly in the research was that organizational support for HIV screening in EDs was the one factor that could make or break whether an emergency nurse performs HIV screening,” she said. This includes working routine HIV screening into ED workflows and providing resources to streamline screening and testing efforts.

In 2006, the Centers for Disease Control and Prevention released guidance recommending routine HIV screening in all healthcare settings, including urgent care and EDs. Elam, who conducted the research as a student at Rutgers University School of Nursing in New Brunswick, N.J., noticed during her time as an ED nurse that, while her department had a policy supporting routine HIV screening, the practice was not consistent across all nursing staff. To find out how HIV screening varied nationally, Elam ran a national survey from Oct. through Dec. 2020, recruiting participants both by email outreach and Facebook.

In the 30- to 45-minute survey, respondents reported:

• Demographic information
• Knowledge of the CDC HIV screening recommendations
• Workplace HIV screening policy
• Self-reported performance of HIV screening
• Beliefs and attitudes pertaining to HIV screening

Overall, 371 individuals from 43 states filled out at least some part of the survey, and 171 individuals completed it. Of the 251 individuals who answered whether their EDs routinely conducted HIV screening, 76.9% responded affirmatively. Overall, 28.5% of respondents thought HIV screening was “not important” or “not at all important.” Nearly half – 47.6% – reported never offering HIV testing to all eligible patients regardless of risk factors, and only 14.3% reported offering testing all of the time. Only 25% of participants said they received “adequate” or “a lot” of HIV-related nursing education, and 42.9% reported “little” or “very little” education.

“For the most part, those of us working in hospitals, all the education that we get about HIV took place in school,” Elam said. “So, if you went to school in the early 2000s or in the 1990s, you don’t know much else.” Elam noted that she keeps informed on HIV research issues because it is an area of interest, but the hospital she had worked at did not contribute much to her knowledge.

Elam also found that in practice there were several barriers to performing screening, such as lack of availability of a dedicated HIV educator, tester, or counselors; not knowing where to refer patients who had a positive HIV test result; and insufficient time to address positive HIV test results in ED practice.

“A lot of these things are outside an individual nurse’s control,” said Elam, and can result in missing patients who would benefit from care. Lisa Leimer, RN, a nurse at Primary Health Care in Des Moines, works with patients after they have been diagnosed with HIV, but noted that many of her patients could have been identified earlier. “Once we get someone, you look back at medical records and you see that they have been in and out of the hospital,” she said. “There’s been multiple encounters,” she said.

Prioritizing HIV screening in all healthcare settings and including HIV education for all medical professionals – not just nurses – could help in the continuing battle against HIV. “So much has changed in the world of HIV,” she said. “We’re trying to end the epidemic, and it could happen if we identified, diagnosed, and treated the people that are living with it.”

Elam and Leimer have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Insufficient HIV-related nursing education is a major barrier to implementing HIV screening efforts in emergency departments (EDs), according to a national survey of ED nurses. Nearly 43% of respondents said they had received “little” or “very little” HIV education as part of their professional development and practice.

This lack of continuing HIV education “often translated into attitudes that did not support the policy” of routine HIV screening in EDs, lead author Candace Elam, DNP, a family nurse practitioner at the Institute of Family Health in the Bronx, New York City, told this news organization. “But more than individual attitudes, what came out most clearly in the research was that organizational support for HIV screening in EDs was the one factor that could make or break whether an emergency nurse performs HIV screening,” she said. This includes working routine HIV screening into ED workflows and providing resources to streamline screening and testing efforts.

In 2006, the Centers for Disease Control and Prevention released guidance recommending routine HIV screening in all healthcare settings, including urgent care and EDs. Elam, who conducted the research as a student at Rutgers University School of Nursing in New Brunswick, N.J., noticed during her time as an ED nurse that, while her department had a policy supporting routine HIV screening, the practice was not consistent across all nursing staff. To find out how HIV screening varied nationally, Elam ran a national survey from Oct. through Dec. 2020, recruiting participants both by email outreach and Facebook.

In the 30- to 45-minute survey, respondents reported:

• Demographic information
• Knowledge of the CDC HIV screening recommendations
• Workplace HIV screening policy
• Self-reported performance of HIV screening
• Beliefs and attitudes pertaining to HIV screening

Overall, 371 individuals from 43 states filled out at least some part of the survey, and 171 individuals completed it. Of the 251 individuals who answered whether their EDs routinely conducted HIV screening, 76.9% responded affirmatively. Overall, 28.5% of respondents thought HIV screening was “not important” or “not at all important.” Nearly half – 47.6% – reported never offering HIV testing to all eligible patients regardless of risk factors, and only 14.3% reported offering testing all of the time. Only 25% of participants said they received “adequate” or “a lot” of HIV-related nursing education, and 42.9% reported “little” or “very little” education.

“For the most part, those of us working in hospitals, all the education that we get about HIV took place in school,” Elam said. “So, if you went to school in the early 2000s or in the 1990s, you don’t know much else.” Elam noted that she keeps informed on HIV research issues because it is an area of interest, but the hospital she had worked at did not contribute much to her knowledge.

Elam also found that in practice there were several barriers to performing screening, such as lack of availability of a dedicated HIV educator, tester, or counselors; not knowing where to refer patients who had a positive HIV test result; and insufficient time to address positive HIV test results in ED practice.

“A lot of these things are outside an individual nurse’s control,” said Elam, and can result in missing patients who would benefit from care. Lisa Leimer, RN, a nurse at Primary Health Care in Des Moines, works with patients after they have been diagnosed with HIV, but noted that many of her patients could have been identified earlier. “Once we get someone, you look back at medical records and you see that they have been in and out of the hospital,” she said. “There’s been multiple encounters,” she said.

Prioritizing HIV screening in all healthcare settings and including HIV education for all medical professionals – not just nurses – could help in the continuing battle against HIV. “So much has changed in the world of HIV,” she said. “We’re trying to end the epidemic, and it could happen if we identified, diagnosed, and treated the people that are living with it.”

Elam and Leimer have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.