MDedge Endocrinology

TOPLINE:

Artificial intelligence (AI) boosts the screening rate for potentially blinding diabetes eye disorders in a diabetes clinic compared with referral to an eye care provider (ECP) in a racially and ethnically diverse youth population with diabetes.

METHODOLOGY:

• Although early screening and treatment can prevent diabetic eye diseases (DEDs), many people with diabetes in the United States lack access to and knowledge about diabetic eye exams.
• The  trial included 164 patients aged 8-21 years (58% female, 35% Black, and 6% Hispanic) with type 1 or 2 diabetes with no known DED and no diabetic eye exam in the last 6 months.
• In a diabetes clinic, patients were randomly assigned to an AI diabetic eye exam (intervention arm) then and there or to standard of care, referred to an ECP with scripted educational material (control).
• Participants in the intervention arm underwent the 5- to 10-minute autonomous AI diabetic eye exam without pharmacologic dilation. The results were generated immediately as either “DED present” or “DED absent.”
• The primary outcome was the completion rate of documented diabetic eye exams within 6 months (“primary gap closure rate”), either by AI or going to the ECP. The secondary outcome was ECP follow-up by intervention participants with DED (intervention) and all control patients.

TAKEAWAY:

• Within 6 months, all the participants (100%) in the intervention arm completed their diabetic eye exam, a primary care gap closure rate of 100% (95% CI, 96%-100%).
• The rate of primary care gap closure was significantly higher in the intervention vs control arm (100% vs 22%; P < .001).
• In the intervention arm, 64% of patients with DED followed up with an eye care provider within 6 months compared with a mere 22% participants in the control arm (P < .001).
• Participants reported high levels of satisfaction with autonomous AI, with 92.5% expressing satisfaction with the exam’s duration and 96% expressing satisfaction with the whole experience.

IN PRACTICE:

“Autonomous AI increases diabetic eye exam completion rates and closes this care gap in a racially and ethnically diverse population of youth with diabetes, compared to standard of care,” the authors wrote.

SOURCE:

This study, which was led by Risa M. Wolf, MD, department of pediatrics, division of endocrinology, Johns Hopkins School of Medicine, Baltimore, was published online on January 11, 2024, in Nature Communications.

LIMITATIONS:

This study used autonomous AI in the youth although it’s not approved by the US Food and Drug Administration for use in individuals aged 21 years and younger. Some of the participants in this study were already familiar with autonomous AI diabetic eye exams, which might have contributed to their willingness to participate in the current study. The autonomous AI used in the study was shown to have a lack of racial and ethnic bias, but any AI bias caused by differences in retinal pigment has potential to increase rather than decrease health disparities.

DISCLOSURES:

The clinical trial was supported by the National Eye Institute of the National Institutes of Health and the Diabetes Research Connection. Wolf, the lead author, declared receiving research support from Boehringer Ingelheim and Novo Nordisk outside the submitted work. Coauthor Michael D. Abramoff, MD, declared serving in various roles such as investor, director, and consultant for Digital Diagnostics Inc., as well as other ties with many sources.

A version of this article appeared on Medscape.com.

TOPLINE:

Artificial intelligence (AI) boosts the screening rate for potentially blinding diabetes eye disorders in a diabetes clinic compared with referral to an eye care provider (ECP) in a racially and ethnically diverse youth population with diabetes.

METHODOLOGY:

• Although early screening and treatment can prevent diabetic eye diseases (DEDs), many people with diabetes in the United States lack access to and knowledge about diabetic eye exams.
• The  trial included 164 patients aged 8-21 years (58% female, 35% Black, and 6% Hispanic) with type 1 or 2 diabetes with no known DED and no diabetic eye exam in the last 6 months.
• In a diabetes clinic, patients were randomly assigned to an AI diabetic eye exam (intervention arm) then and there or to standard of care, referred to an ECP with scripted educational material (control).
• Participants in the intervention arm underwent the 5- to 10-minute autonomous AI diabetic eye exam without pharmacologic dilation. The results were generated immediately as either “DED present” or “DED absent.”
• The primary outcome was the completion rate of documented diabetic eye exams within 6 months (“primary gap closure rate”), either by AI or going to the ECP. The secondary outcome was ECP follow-up by intervention participants with DED (intervention) and all control patients.

TAKEAWAY:

• Within 6 months, all the participants (100%) in the intervention arm completed their diabetic eye exam, a primary care gap closure rate of 100% (95% CI, 96%-100%).
• The rate of primary care gap closure was significantly higher in the intervention vs control arm (100% vs 22%; P < .001).
• In the intervention arm, 64% of patients with DED followed up with an eye care provider within 6 months compared with a mere 22% participants in the control arm (P < .001).
• Participants reported high levels of satisfaction with autonomous AI, with 92.5% expressing satisfaction with the exam’s duration and 96% expressing satisfaction with the whole experience.

IN PRACTICE:

“Autonomous AI increases diabetic eye exam completion rates and closes this care gap in a racially and ethnically diverse population of youth with diabetes, compared to standard of care,” the authors wrote.

SOURCE:

This study, which was led by Risa M. Wolf, MD, department of pediatrics, division of endocrinology, Johns Hopkins School of Medicine, Baltimore, was published online on January 11, 2024, in Nature Communications.

LIMITATIONS:

This study used autonomous AI in the youth although it’s not approved by the US Food and Drug Administration for use in individuals aged 21 years and younger. Some of the participants in this study were already familiar with autonomous AI diabetic eye exams, which might have contributed to their willingness to participate in the current study. The autonomous AI used in the study was shown to have a lack of racial and ethnic bias, but any AI bias caused by differences in retinal pigment has potential to increase rather than decrease health disparities.

DISCLOSURES:

The clinical trial was supported by the National Eye Institute of the National Institutes of Health and the Diabetes Research Connection. Wolf, the lead author, declared receiving research support from Boehringer Ingelheim and Novo Nordisk outside the submitted work. Coauthor Michael D. Abramoff, MD, declared serving in various roles such as investor, director, and consultant for Digital Diagnostics Inc., as well as other ties with many sources.

A version of this article appeared on Medscape.com.

TOPLINE:

Artificial intelligence (AI) boosts the screening rate for potentially blinding diabetes eye disorders in a diabetes clinic compared with referral to an eye care provider (ECP) in a racially and ethnically diverse youth population with diabetes.

METHODOLOGY:

• Although early screening and treatment can prevent diabetic eye diseases (DEDs), many people with diabetes in the United States lack access to and knowledge about diabetic eye exams.
• The  trial included 164 patients aged 8-21 years (58% female, 35% Black, and 6% Hispanic) with type 1 or 2 diabetes with no known DED and no diabetic eye exam in the last 6 months.
• In a diabetes clinic, patients were randomly assigned to an AI diabetic eye exam (intervention arm) then and there or to standard of care, referred to an ECP with scripted educational material (control).
• Participants in the intervention arm underwent the 5- to 10-minute autonomous AI diabetic eye exam without pharmacologic dilation. The results were generated immediately as either “DED present” or “DED absent.”
• The primary outcome was the completion rate of documented diabetic eye exams within 6 months (“primary gap closure rate”), either by AI or going to the ECP. The secondary outcome was ECP follow-up by intervention participants with DED (intervention) and all control patients.

TAKEAWAY:

• Within 6 months, all the participants (100%) in the intervention arm completed their diabetic eye exam, a primary care gap closure rate of 100% (95% CI, 96%-100%).
• The rate of primary care gap closure was significantly higher in the intervention vs control arm (100% vs 22%; P < .001).
• In the intervention arm, 64% of patients with DED followed up with an eye care provider within 6 months compared with a mere 22% participants in the control arm (P < .001).
• Participants reported high levels of satisfaction with autonomous AI, with 92.5% expressing satisfaction with the exam’s duration and 96% expressing satisfaction with the whole experience.

IN PRACTICE:

“Autonomous AI increases diabetic eye exam completion rates and closes this care gap in a racially and ethnically diverse population of youth with diabetes, compared to standard of care,” the authors wrote.

SOURCE:

This study, which was led by Risa M. Wolf, MD, department of pediatrics, division of endocrinology, Johns Hopkins School of Medicine, Baltimore, was published online on January 11, 2024, in Nature Communications.

LIMITATIONS:

This study used autonomous AI in the youth although it’s not approved by the US Food and Drug Administration for use in individuals aged 21 years and younger. Some of the participants in this study were already familiar with autonomous AI diabetic eye exams, which might have contributed to their willingness to participate in the current study. The autonomous AI used in the study was shown to have a lack of racial and ethnic bias, but any AI bias caused by differences in retinal pigment has potential to increase rather than decrease health disparities.

DISCLOSURES:

The clinical trial was supported by the National Eye Institute of the National Institutes of Health and the Diabetes Research Connection. Wolf, the lead author, declared receiving research support from Boehringer Ingelheim and Novo Nordisk outside the submitted work. Coauthor Michael D. Abramoff, MD, declared serving in various roles such as investor, director, and consultant for Digital Diagnostics Inc., as well as other ties with many sources.

A version of this article appeared on Medscape.com.

The US Food and Drug Administration (FDA) has approved a wearable belt device for postmenopausal women with osteopenia, the precursor to osteoporosis, according to the company’s manufacturer, Bone Health Technologies.

According to the company, the device (Osteoboost) is the first nonpharmacologic device-based, prescription-only treatment for postmenopausal women with low bone density. It has not been tested for ability to reduce fracture risk.

Bone Health Technologies

The device is worn around the hips and delivers calibrated mild vibrations to the hips and lumbar spine to help preserve bone strength and density. A vibration pack is mounted to the back of the belt.

FDA approval, announced on January 18, was based on the findings of a National Institutes of Health–funded double-blinded, sham-controlled study of 126 women with low bone density conducted at the University of Nebraska Medical Center in Omaha. The data were shared at the 2023 Endocrine Society and American Society for Bone and Mineral Research annual meetings and published in the Journal of the Endocrine Society.

Lead investigator Laura D. Bilek, PT, PhD, associate dean for research and associate professor at the University of Nebraska, and colleagues wrote that the primary outcome measurement was the change in vertebral strength measured by CT scans for women who used the device a minimum of three times per week compared with a sham group who wore a belt that emitted sound but had no vibrations.

Compressive strength and volumetric density of the first lumbar vertebra were analyzed.

In the active-belt group, women lost, on average, 0.48% bone strength, while those in the sham group lost nearly 2.84% (P = .014), about five times as much. Results also showed that participants in the active treatment group who used the device three times per week lost 0.29% bone mineral density (BMD) compared with the 1.97% BMD lost in the control group. No adverse events were reported in the study.

Sonali Khandelwal, MD, a rheumatologist at Rush University in Chicago, told this news organization there’s considerable fear among some patients about long-term use of available medications for bone health, “so any modality that is nontherapeutic — not a pill — is always exciting.”

The endpoints of the study are one good measure, she said, but she emphasized that it will be important to show that the improved bone density from the belt that is described in this study “is a true marker of decreased fracture risk.”

Because there are no apparent side effects, she said it may be effective in combination with weight-bearing exercise, vitamin D and calcium, and/or medication, depending on severity of bone loss.

Current medications on the market for osteoporosis have been shown to improve bone strength and reduce fracture risk, she noted.

“It could help; I just don’t think we have enough evidence that it will completely treat the bone loss,” Dr. Khandelwal said.

She said she sees the potential population most interested in the belt as premenopausal women with a family history of bone loss who may not meet the level of bone loss for medical management but are interested in prevention.

“I also think of individuals who might already meet medication needs but are completely averse to being on medication,” she said. The bulk of her practice is treating bone loss, she said, estimating that 20% of her patients do not want to be on medication.

Bone Health Technologies CEO Laura Yecies, MBA, told this news organization the company has not yet set the price for the device and noted that because it will be available by prescription only, out-of-pocket costs and copays will differ. She said the company expects to begin shipping later this year. Requests for update notifications can be made at the company’s website.

Dr. Bilek told this news organization the device was tested for a year, so it’s unclear how long people with osteopenia would need to wear the belt for maximum benefit.

The theory behind the mechanism of action, she said, “is that the vibration actually inhibits the cells [osteoclasts] that take away bone mass.”

The researchers included only postmenopausal women with osteopenia in the study, but Dr. Bilek said she would like to test the device on other groups, such as men with prostate cancer getting testosterone-blocking therapy, which can result in loss of bone density. An estimated 34 million people in the United States have osteopenia.

Dr. Bilek said a next step for the study is to enroll a more diverse cohort at an additional center to test the device because most of the women in this one were White.

She noted that women’s bone mass peaks at age 30 and then starts to decline.

“When women hit menopause, there’s a really rapid decline [in bone strength] for the next 5-7 years and then the decline levels off. If we can slow that decline, hopefully that woman’s bone density is maintained at a higher level throughout their life,” Dr. Bilek said.

Dr. Bilek is a scientific adviser to Bone Health Technologies. She and many coauthors of the study received grants or fees from the company and own stock in or are employees of the company. Ms. Yecies is the founder and CEO of Bone Health Technologies. Dr. Khandelwal had no relevant financial relationships.

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

The US Food and Drug Administration (FDA) has approved a wearable belt device for postmenopausal women with osteopenia, the precursor to osteoporosis, according to the company’s manufacturer, Bone Health Technologies.

According to the company, the device (Osteoboost) is the first nonpharmacologic device-based, prescription-only treatment for postmenopausal women with low bone density. It has not been tested for ability to reduce fracture risk.

Bone Health Technologies

The device is worn around the hips and delivers calibrated mild vibrations to the hips and lumbar spine to help preserve bone strength and density. A vibration pack is mounted to the back of the belt.

FDA approval, announced on January 18, was based on the findings of a National Institutes of Health–funded double-blinded, sham-controlled study of 126 women with low bone density conducted at the University of Nebraska Medical Center in Omaha. The data were shared at the 2023 Endocrine Society and American Society for Bone and Mineral Research annual meetings and published in the Journal of the Endocrine Society.

Lead investigator Laura D. Bilek, PT, PhD, associate dean for research and associate professor at the University of Nebraska, and colleagues wrote that the primary outcome measurement was the change in vertebral strength measured by CT scans for women who used the device a minimum of three times per week compared with a sham group who wore a belt that emitted sound but had no vibrations.

Compressive strength and volumetric density of the first lumbar vertebra were analyzed.

In the active-belt group, women lost, on average, 0.48% bone strength, while those in the sham group lost nearly 2.84% (P = .014), about five times as much. Results also showed that participants in the active treatment group who used the device three times per week lost 0.29% bone mineral density (BMD) compared with the 1.97% BMD lost in the control group. No adverse events were reported in the study.

Sonali Khandelwal, MD, a rheumatologist at Rush University in Chicago, told this news organization there’s considerable fear among some patients about long-term use of available medications for bone health, “so any modality that is nontherapeutic — not a pill — is always exciting.”

The endpoints of the study are one good measure, she said, but she emphasized that it will be important to show that the improved bone density from the belt that is described in this study “is a true marker of decreased fracture risk.”

Because there are no apparent side effects, she said it may be effective in combination with weight-bearing exercise, vitamin D and calcium, and/or medication, depending on severity of bone loss.

Current medications on the market for osteoporosis have been shown to improve bone strength and reduce fracture risk, she noted.

“It could help; I just don’t think we have enough evidence that it will completely treat the bone loss,” Dr. Khandelwal said.

She said she sees the potential population most interested in the belt as premenopausal women with a family history of bone loss who may not meet the level of bone loss for medical management but are interested in prevention.

“I also think of individuals who might already meet medication needs but are completely averse to being on medication,” she said. The bulk of her practice is treating bone loss, she said, estimating that 20% of her patients do not want to be on medication.

Bone Health Technologies CEO Laura Yecies, MBA, told this news organization the company has not yet set the price for the device and noted that because it will be available by prescription only, out-of-pocket costs and copays will differ. She said the company expects to begin shipping later this year. Requests for update notifications can be made at the company’s website.

Dr. Bilek told this news organization the device was tested for a year, so it’s unclear how long people with osteopenia would need to wear the belt for maximum benefit.

The theory behind the mechanism of action, she said, “is that the vibration actually inhibits the cells [osteoclasts] that take away bone mass.”

The researchers included only postmenopausal women with osteopenia in the study, but Dr. Bilek said she would like to test the device on other groups, such as men with prostate cancer getting testosterone-blocking therapy, which can result in loss of bone density. An estimated 34 million people in the United States have osteopenia.

Dr. Bilek said a next step for the study is to enroll a more diverse cohort at an additional center to test the device because most of the women in this one were White.

She noted that women’s bone mass peaks at age 30 and then starts to decline.

“When women hit menopause, there’s a really rapid decline [in bone strength] for the next 5-7 years and then the decline levels off. If we can slow that decline, hopefully that woman’s bone density is maintained at a higher level throughout their life,” Dr. Bilek said.

Dr. Bilek is a scientific adviser to Bone Health Technologies. She and many coauthors of the study received grants or fees from the company and own stock in or are employees of the company. Ms. Yecies is the founder and CEO of Bone Health Technologies. Dr. Khandelwal had no relevant financial relationships.

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

The US Food and Drug Administration (FDA) has approved a wearable belt device for postmenopausal women with osteopenia, the precursor to osteoporosis, according to the company’s manufacturer, Bone Health Technologies.

According to the company, the device (Osteoboost) is the first nonpharmacologic device-based, prescription-only treatment for postmenopausal women with low bone density. It has not been tested for ability to reduce fracture risk.

Bone Health Technologies

The device is worn around the hips and delivers calibrated mild vibrations to the hips and lumbar spine to help preserve bone strength and density. A vibration pack is mounted to the back of the belt.

FDA approval, announced on January 18, was based on the findings of a National Institutes of Health–funded double-blinded, sham-controlled study of 126 women with low bone density conducted at the University of Nebraska Medical Center in Omaha. The data were shared at the 2023 Endocrine Society and American Society for Bone and Mineral Research annual meetings and published in the Journal of the Endocrine Society.

Lead investigator Laura D. Bilek, PT, PhD, associate dean for research and associate professor at the University of Nebraska, and colleagues wrote that the primary outcome measurement was the change in vertebral strength measured by CT scans for women who used the device a minimum of three times per week compared with a sham group who wore a belt that emitted sound but had no vibrations.

Compressive strength and volumetric density of the first lumbar vertebra were analyzed.

In the active-belt group, women lost, on average, 0.48% bone strength, while those in the sham group lost nearly 2.84% (P = .014), about five times as much. Results also showed that participants in the active treatment group who used the device three times per week lost 0.29% bone mineral density (BMD) compared with the 1.97% BMD lost in the control group. No adverse events were reported in the study.

Sonali Khandelwal, MD, a rheumatologist at Rush University in Chicago, told this news organization there’s considerable fear among some patients about long-term use of available medications for bone health, “so any modality that is nontherapeutic — not a pill — is always exciting.”

The endpoints of the study are one good measure, she said, but she emphasized that it will be important to show that the improved bone density from the belt that is described in this study “is a true marker of decreased fracture risk.”

Because there are no apparent side effects, she said it may be effective in combination with weight-bearing exercise, vitamin D and calcium, and/or medication, depending on severity of bone loss.

Current medications on the market for osteoporosis have been shown to improve bone strength and reduce fracture risk, she noted.

“It could help; I just don’t think we have enough evidence that it will completely treat the bone loss,” Dr. Khandelwal said.

She said she sees the potential population most interested in the belt as premenopausal women with a family history of bone loss who may not meet the level of bone loss for medical management but are interested in prevention.

“I also think of individuals who might already meet medication needs but are completely averse to being on medication,” she said. The bulk of her practice is treating bone loss, she said, estimating that 20% of her patients do not want to be on medication.

Bone Health Technologies CEO Laura Yecies, MBA, told this news organization the company has not yet set the price for the device and noted that because it will be available by prescription only, out-of-pocket costs and copays will differ. She said the company expects to begin shipping later this year. Requests for update notifications can be made at the company’s website.

Dr. Bilek told this news organization the device was tested for a year, so it’s unclear how long people with osteopenia would need to wear the belt for maximum benefit.

The theory behind the mechanism of action, she said, “is that the vibration actually inhibits the cells [osteoclasts] that take away bone mass.”

The researchers included only postmenopausal women with osteopenia in the study, but Dr. Bilek said she would like to test the device on other groups, such as men with prostate cancer getting testosterone-blocking therapy, which can result in loss of bone density. An estimated 34 million people in the United States have osteopenia.

Dr. Bilek said a next step for the study is to enroll a more diverse cohort at an additional center to test the device because most of the women in this one were White.

She noted that women’s bone mass peaks at age 30 and then starts to decline.

“When women hit menopause, there’s a really rapid decline [in bone strength] for the next 5-7 years and then the decline levels off. If we can slow that decline, hopefully that woman’s bone density is maintained at a higher level throughout their life,” Dr. Bilek said.

Dr. Bilek is a scientific adviser to Bone Health Technologies. She and many coauthors of the study received grants or fees from the company and own stock in or are employees of the company. Ms. Yecies is the founder and CEO of Bone Health Technologies. Dr. Khandelwal had no relevant financial relationships.

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

Officials at Dana-Farber Cancer Institute are moving to retract at least six published research papers and correct 31 others amid allegations of data manipulation.

News of the investigation follows a blog post by British molecular biologist Sholto David, MD, who flagged almost 60 papers published between 1997 and 2017 that contained image manipulation and other errors. Some of the papers were published by Dana-Farber’s chief executive officer, Laurie Glimcher, MD, and chief operating officer, William Hahn, MD, on topics including multiple myeloma and immune cells.

Mr. David, who blogs about research integrity, highlighted numerous errors and irregularities, including copying and pasting images across multiple experiments to represent different days within the same experiment, sometimes rotating or stretching images.

In one case, Mr. David equated the manipulation with tactics used by “hapless Chinese papermills” and concluded that “a swathe of research coming out of [Dana-Farber] authored by the most senior researchers and managers appears to be hopelessly corrupt with errors that are obvious from just a cursory reading the papers.” 

“Imagine what mistakes might be found in the raw data if anyone was allowed to look!” he wrote.

Barrett Rollins, MD, PhD, Dana-Farber Cancer Institute’s research integrity officer, declined to comment on whether the errors represent scientific misconduct, according to STAT. Rollins told ScienceInsider that the “presence of image discrepancies in a paper is not evidence of an author’s intent to deceive.” 

Access to new artificial intelligence tools is making it easier for data sleuths, like Mr. David, to unearth data manipulation and errors. 

The current investigation closely follows two other investigations into the published work of Harvard University’s former president, Claudine Gay, and Stanford University’s former president, Marc Tessier-Lavigne, which led both to resign their posts. 

A version of this article appeared on Medscape.com.

Officials at Dana-Farber Cancer Institute are moving to retract at least six published research papers and correct 31 others amid allegations of data manipulation.

News of the investigation follows a blog post by British molecular biologist Sholto David, MD, who flagged almost 60 papers published between 1997 and 2017 that contained image manipulation and other errors. Some of the papers were published by Dana-Farber’s chief executive officer, Laurie Glimcher, MD, and chief operating officer, William Hahn, MD, on topics including multiple myeloma and immune cells.

Mr. David, who blogs about research integrity, highlighted numerous errors and irregularities, including copying and pasting images across multiple experiments to represent different days within the same experiment, sometimes rotating or stretching images.

In one case, Mr. David equated the manipulation with tactics used by “hapless Chinese papermills” and concluded that “a swathe of research coming out of [Dana-Farber] authored by the most senior researchers and managers appears to be hopelessly corrupt with errors that are obvious from just a cursory reading the papers.” 

“Imagine what mistakes might be found in the raw data if anyone was allowed to look!” he wrote.

Barrett Rollins, MD, PhD, Dana-Farber Cancer Institute’s research integrity officer, declined to comment on whether the errors represent scientific misconduct, according to STAT. Rollins told ScienceInsider that the “presence of image discrepancies in a paper is not evidence of an author’s intent to deceive.” 

Access to new artificial intelligence tools is making it easier for data sleuths, like Mr. David, to unearth data manipulation and errors. 

The current investigation closely follows two other investigations into the published work of Harvard University’s former president, Claudine Gay, and Stanford University’s former president, Marc Tessier-Lavigne, which led both to resign their posts. 

A version of this article appeared on Medscape.com.

Officials at Dana-Farber Cancer Institute are moving to retract at least six published research papers and correct 31 others amid allegations of data manipulation.

News of the investigation follows a blog post by British molecular biologist Sholto David, MD, who flagged almost 60 papers published between 1997 and 2017 that contained image manipulation and other errors. Some of the papers were published by Dana-Farber’s chief executive officer, Laurie Glimcher, MD, and chief operating officer, William Hahn, MD, on topics including multiple myeloma and immune cells.

Mr. David, who blogs about research integrity, highlighted numerous errors and irregularities, including copying and pasting images across multiple experiments to represent different days within the same experiment, sometimes rotating or stretching images.

In one case, Mr. David equated the manipulation with tactics used by “hapless Chinese papermills” and concluded that “a swathe of research coming out of [Dana-Farber] authored by the most senior researchers and managers appears to be hopelessly corrupt with errors that are obvious from just a cursory reading the papers.” 

“Imagine what mistakes might be found in the raw data if anyone was allowed to look!” he wrote.

Barrett Rollins, MD, PhD, Dana-Farber Cancer Institute’s research integrity officer, declined to comment on whether the errors represent scientific misconduct, according to STAT. Rollins told ScienceInsider that the “presence of image discrepancies in a paper is not evidence of an author’s intent to deceive.” 

Access to new artificial intelligence tools is making it easier for data sleuths, like Mr. David, to unearth data manipulation and errors. 

The current investigation closely follows two other investigations into the published work of Harvard University’s former president, Claudine Gay, and Stanford University’s former president, Marc Tessier-Lavigne, which led both to resign their posts. 

A version of this article appeared on Medscape.com.

Very few patients with type 2 diabetes (T2D) achieve and sustain diabetes remission via weight loss alone, new research suggests.

Among more than 37,000 people with T2D in Hong Kong, only 6% had achieved and sustained diabetes remission solely through weight loss up to 8 years after diagnosis. Among those who initially achieved remission, 67% had hyperglycemia at 3 years.

People who lost the most weight (10% of their body weight or more) in the first year after diagnosis were most likely to have sustained remission.

The study “helped to confirm the low rate of diabetes remission and high rate of returning to hyperglycemia in real-world practice,” Andrea Luk, MD, of the Chinese University of Hong Kong, told this news organization. “Over 80% of diabetes remission occurred within the first 5 years of a diabetes diagnosis. This is in line with our understanding that beta cell function will gradually decline over time, making diabetes remission increasingly difficult even with weight reduction.”

The study was published in PLOS Medicine.
 

Early Weight Management Works

Recent clinical trials have demonstrated that T2D remission can be achieved following sustained weight loss through bariatric surgery or lifestyle interventions, the authors noted. In this study, they investigated the association of weight change at 1 year after a diabetes diagnosis with the long-term incidence and sustainability of T2D remission in real-world settings, using data from the territory-wide Risk Assessment and Management Programme-Diabetes Mellitus (RAMP-DM).

A total of 37,326 people with newly diagnosed T2D who were enrolled in the RAMP-DM between 2000 and 2017 were included and followed until 2019.

At baseline, participants’ mean age was 56.6 years, mean body mass index (BMI) was 26.4 kg/m², and mean A1c was 7.7%, and 65% were using glucose-lowering drugs (GLDs).

T2D remission was defined as two consecutive A1c < 6.5% measurements at least 6 months apart without GLDs currently or in the previous 3 months.

During a median follow-up of 7.9 years, 6.1% of people achieved remission, with an incidence rate of 7.8 per 1000 person-years. The proportion was higher among those with greater weight loss: 14.4% of people who lost 10% of their body weight or more achieved remission compared with 9.9% of those with 5%-9.9% weight loss, 6.5% of those with 0%-4.9% weight loss, and 4.5% of those who gained weight.

After adjustment for age at diagnosis, sex, assessment year, BMI, other metabolic indices, smoking, alcohol drinking, and medication use, the hazard ratio (HR) for diabetes remission was 3.28 for those with 10% or greater weight loss within 1 year of diagnosis, 2.29 for 5%-9.9% weight loss, and 1.34 for 0%-4.9% weight loss compared to weight gain.

The incidence of diabetes remission in the study was significantly lower than that in clinical trials, possibly because trial participants were in structured programs that included intensive lifestyle interventions, regular monitoring and feedback, and reinforcement of a holistic approach to managing diabetes, the authors noted. Real-world settings may or may not include such interventions.

Further analyses showed that within a median follow-up of 3.1 years, 67.2% of people who had achieved diabetes remission returned to hyperglycemia — an incidence rate of 184.8 per 1000 person-years.

The adjusted HR for returning to hyperglycemia was 0.52 for people with 10% or greater weight loss, 0.78 for those with 5%-9.9% weight loss, and 0.90 for those with 0%-4.9% weight loss compared to people with weight gain.

In addition, diabetes remission was associated with a 31% (HR, 0.69) decreased risk for all-cause mortality.

The study “provides evidence for policymakers to design and implement early weight management interventions” for people diagnosed with T2D, the authors concluded.

Clinicians also have a role to play, Dr. Luk said. “At the first encounter with an individual with newly diagnosed T2D, clinicians should emphasize the importance of weight reduction and guide the individual on how this can be achieved through making healthy lifestyle choices. Pharmacotherapy and metabolic surgery for weight management can be considered in appropriate individuals.”

Overall, she added, “clinicians should be informed that the likelihood of achieving and maintaining diabetes remission is low, and patients should be counseled accordingly.”
 

Similar to US Experience

Mona Mshayekhi, MD, PhD, an assistant professor of medicine in the division of Diabetes, Endocrinology and Metabolism at Vanderbilt University Medical Center, Nashville, Tennessee, commented on the study for this news organization.

“These findings mirror clinical experience in the US very well,” she said. “We know that sustained weight loss without the use of medications or surgery is extremely difficult in the real-world setting due to the hormonal drivers of obesity, in combination with socioeconomic challenges.”

The study was done before newer weight-management strategies such as glucagon-like peptide 1 receptor agonists were widely available, she noted. “This actually strengthens the finding that weight loss without the routine use of medications has a multitude of benefits, including diabetes remission and reduction of all-cause mortality.”

That said, she added, “I suspect that future studies with more modern cohorts will reveal much higher rates of diabetes remission with the use of newer medications.”

“Our ability to help our patients lose meaningful weight has been limited until recently,” she said. “With new tools in our armamentarium, clinicians need to take the lead in helping patients address and treat obesity and fight the stigma that prevents many from even discussing it with their providers.”

The study did not receive funding. Dr. Luk has received research grants or contracts from Amgen, AstraZeneca, Bayer, Biogen, Boehringer Ingelheim, Eli Lilly, Junshi, Lee Pharmaceutical, MSD, Novo Nordisk, Roche, Sanofi, Shanghai Junshi Biosciences, Sugardown, and Takeda and received travel grants and honoraria for speaking from AstraZeneca, Boehringer Ingelheim, Eli Lilly, and MSD. Dr. Mshayekhi reported no conflicts of interest.

A version of this article appeared on Medscape.com.

Very few patients with type 2 diabetes (T2D) achieve and sustain diabetes remission via weight loss alone, new research suggests.

Among more than 37,000 people with T2D in Hong Kong, only 6% had achieved and sustained diabetes remission solely through weight loss up to 8 years after diagnosis. Among those who initially achieved remission, 67% had hyperglycemia at 3 years.

People who lost the most weight (10% of their body weight or more) in the first year after diagnosis were most likely to have sustained remission.

The study “helped to confirm the low rate of diabetes remission and high rate of returning to hyperglycemia in real-world practice,” Andrea Luk, MD, of the Chinese University of Hong Kong, told this news organization. “Over 80% of diabetes remission occurred within the first 5 years of a diabetes diagnosis. This is in line with our understanding that beta cell function will gradually decline over time, making diabetes remission increasingly difficult even with weight reduction.”

The study was published in PLOS Medicine.
 

Early Weight Management Works

Recent clinical trials have demonstrated that T2D remission can be achieved following sustained weight loss through bariatric surgery or lifestyle interventions, the authors noted. In this study, they investigated the association of weight change at 1 year after a diabetes diagnosis with the long-term incidence and sustainability of T2D remission in real-world settings, using data from the territory-wide Risk Assessment and Management Programme-Diabetes Mellitus (RAMP-DM).

A total of 37,326 people with newly diagnosed T2D who were enrolled in the RAMP-DM between 2000 and 2017 were included and followed until 2019.

At baseline, participants’ mean age was 56.6 years, mean body mass index (BMI) was 26.4 kg/m², and mean A1c was 7.7%, and 65% were using glucose-lowering drugs (GLDs).

T2D remission was defined as two consecutive A1c < 6.5% measurements at least 6 months apart without GLDs currently or in the previous 3 months.

During a median follow-up of 7.9 years, 6.1% of people achieved remission, with an incidence rate of 7.8 per 1000 person-years. The proportion was higher among those with greater weight loss: 14.4% of people who lost 10% of their body weight or more achieved remission compared with 9.9% of those with 5%-9.9% weight loss, 6.5% of those with 0%-4.9% weight loss, and 4.5% of those who gained weight.

After adjustment for age at diagnosis, sex, assessment year, BMI, other metabolic indices, smoking, alcohol drinking, and medication use, the hazard ratio (HR) for diabetes remission was 3.28 for those with 10% or greater weight loss within 1 year of diagnosis, 2.29 for 5%-9.9% weight loss, and 1.34 for 0%-4.9% weight loss compared to weight gain.

The incidence of diabetes remission in the study was significantly lower than that in clinical trials, possibly because trial participants were in structured programs that included intensive lifestyle interventions, regular monitoring and feedback, and reinforcement of a holistic approach to managing diabetes, the authors noted. Real-world settings may or may not include such interventions.

Further analyses showed that within a median follow-up of 3.1 years, 67.2% of people who had achieved diabetes remission returned to hyperglycemia — an incidence rate of 184.8 per 1000 person-years.

The adjusted HR for returning to hyperglycemia was 0.52 for people with 10% or greater weight loss, 0.78 for those with 5%-9.9% weight loss, and 0.90 for those with 0%-4.9% weight loss compared to people with weight gain.

In addition, diabetes remission was associated with a 31% (HR, 0.69) decreased risk for all-cause mortality.

The study “provides evidence for policymakers to design and implement early weight management interventions” for people diagnosed with T2D, the authors concluded.

Clinicians also have a role to play, Dr. Luk said. “At the first encounter with an individual with newly diagnosed T2D, clinicians should emphasize the importance of weight reduction and guide the individual on how this can be achieved through making healthy lifestyle choices. Pharmacotherapy and metabolic surgery for weight management can be considered in appropriate individuals.”

Overall, she added, “clinicians should be informed that the likelihood of achieving and maintaining diabetes remission is low, and patients should be counseled accordingly.”
 

Similar to US Experience

Mona Mshayekhi, MD, PhD, an assistant professor of medicine in the division of Diabetes, Endocrinology and Metabolism at Vanderbilt University Medical Center, Nashville, Tennessee, commented on the study for this news organization.

“These findings mirror clinical experience in the US very well,” she said. “We know that sustained weight loss without the use of medications or surgery is extremely difficult in the real-world setting due to the hormonal drivers of obesity, in combination with socioeconomic challenges.”

The study was done before newer weight-management strategies such as glucagon-like peptide 1 receptor agonists were widely available, she noted. “This actually strengthens the finding that weight loss without the routine use of medications has a multitude of benefits, including diabetes remission and reduction of all-cause mortality.”

That said, she added, “I suspect that future studies with more modern cohorts will reveal much higher rates of diabetes remission with the use of newer medications.”

“Our ability to help our patients lose meaningful weight has been limited until recently,” she said. “With new tools in our armamentarium, clinicians need to take the lead in helping patients address and treat obesity and fight the stigma that prevents many from even discussing it with their providers.”

The study did not receive funding. Dr. Luk has received research grants or contracts from Amgen, AstraZeneca, Bayer, Biogen, Boehringer Ingelheim, Eli Lilly, Junshi, Lee Pharmaceutical, MSD, Novo Nordisk, Roche, Sanofi, Shanghai Junshi Biosciences, Sugardown, and Takeda and received travel grants and honoraria for speaking from AstraZeneca, Boehringer Ingelheim, Eli Lilly, and MSD. Dr. Mshayekhi reported no conflicts of interest.

A version of this article appeared on Medscape.com.

Very few patients with type 2 diabetes (T2D) achieve and sustain diabetes remission via weight loss alone, new research suggests.

Among more than 37,000 people with T2D in Hong Kong, only 6% had achieved and sustained diabetes remission solely through weight loss up to 8 years after diagnosis. Among those who initially achieved remission, 67% had hyperglycemia at 3 years.

People who lost the most weight (10% of their body weight or more) in the first year after diagnosis were most likely to have sustained remission.

The study “helped to confirm the low rate of diabetes remission and high rate of returning to hyperglycemia in real-world practice,” Andrea Luk, MD, of the Chinese University of Hong Kong, told this news organization. “Over 80% of diabetes remission occurred within the first 5 years of a diabetes diagnosis. This is in line with our understanding that beta cell function will gradually decline over time, making diabetes remission increasingly difficult even with weight reduction.”

The study was published in PLOS Medicine.
 

Early Weight Management Works

Recent clinical trials have demonstrated that T2D remission can be achieved following sustained weight loss through bariatric surgery or lifestyle interventions, the authors noted. In this study, they investigated the association of weight change at 1 year after a diabetes diagnosis with the long-term incidence and sustainability of T2D remission in real-world settings, using data from the territory-wide Risk Assessment and Management Programme-Diabetes Mellitus (RAMP-DM).

A total of 37,326 people with newly diagnosed T2D who were enrolled in the RAMP-DM between 2000 and 2017 were included and followed until 2019.

At baseline, participants’ mean age was 56.6 years, mean body mass index (BMI) was 26.4 kg/m², and mean A1c was 7.7%, and 65% were using glucose-lowering drugs (GLDs).

T2D remission was defined as two consecutive A1c < 6.5% measurements at least 6 months apart without GLDs currently or in the previous 3 months.

During a median follow-up of 7.9 years, 6.1% of people achieved remission, with an incidence rate of 7.8 per 1000 person-years. The proportion was higher among those with greater weight loss: 14.4% of people who lost 10% of their body weight or more achieved remission compared with 9.9% of those with 5%-9.9% weight loss, 6.5% of those with 0%-4.9% weight loss, and 4.5% of those who gained weight.

After adjustment for age at diagnosis, sex, assessment year, BMI, other metabolic indices, smoking, alcohol drinking, and medication use, the hazard ratio (HR) for diabetes remission was 3.28 for those with 10% or greater weight loss within 1 year of diagnosis, 2.29 for 5%-9.9% weight loss, and 1.34 for 0%-4.9% weight loss compared to weight gain.

The incidence of diabetes remission in the study was significantly lower than that in clinical trials, possibly because trial participants were in structured programs that included intensive lifestyle interventions, regular monitoring and feedback, and reinforcement of a holistic approach to managing diabetes, the authors noted. Real-world settings may or may not include such interventions.

Further analyses showed that within a median follow-up of 3.1 years, 67.2% of people who had achieved diabetes remission returned to hyperglycemia — an incidence rate of 184.8 per 1000 person-years.

The adjusted HR for returning to hyperglycemia was 0.52 for people with 10% or greater weight loss, 0.78 for those with 5%-9.9% weight loss, and 0.90 for those with 0%-4.9% weight loss compared to people with weight gain.

In addition, diabetes remission was associated with a 31% (HR, 0.69) decreased risk for all-cause mortality.

The study “provides evidence for policymakers to design and implement early weight management interventions” for people diagnosed with T2D, the authors concluded.

Clinicians also have a role to play, Dr. Luk said. “At the first encounter with an individual with newly diagnosed T2D, clinicians should emphasize the importance of weight reduction and guide the individual on how this can be achieved through making healthy lifestyle choices. Pharmacotherapy and metabolic surgery for weight management can be considered in appropriate individuals.”

Overall, she added, “clinicians should be informed that the likelihood of achieving and maintaining diabetes remission is low, and patients should be counseled accordingly.”
 

Similar to US Experience

Mona Mshayekhi, MD, PhD, an assistant professor of medicine in the division of Diabetes, Endocrinology and Metabolism at Vanderbilt University Medical Center, Nashville, Tennessee, commented on the study for this news organization.

“These findings mirror clinical experience in the US very well,” she said. “We know that sustained weight loss without the use of medications or surgery is extremely difficult in the real-world setting due to the hormonal drivers of obesity, in combination with socioeconomic challenges.”

The study was done before newer weight-management strategies such as glucagon-like peptide 1 receptor agonists were widely available, she noted. “This actually strengthens the finding that weight loss without the routine use of medications has a multitude of benefits, including diabetes remission and reduction of all-cause mortality.”

That said, she added, “I suspect that future studies with more modern cohorts will reveal much higher rates of diabetes remission with the use of newer medications.”

“Our ability to help our patients lose meaningful weight has been limited until recently,” she said. “With new tools in our armamentarium, clinicians need to take the lead in helping patients address and treat obesity and fight the stigma that prevents many from even discussing it with their providers.”

The study did not receive funding. Dr. Luk has received research grants or contracts from Amgen, AstraZeneca, Bayer, Biogen, Boehringer Ingelheim, Eli Lilly, Junshi, Lee Pharmaceutical, MSD, Novo Nordisk, Roche, Sanofi, Shanghai Junshi Biosciences, Sugardown, and Takeda and received travel grants and honoraria for speaking from AstraZeneca, Boehringer Ingelheim, Eli Lilly, and MSD. Dr. Mshayekhi reported no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Intra-articular corticosteroid (IACS) injections pose a minimal risk of accelerating diabetes for most people, despite temporarily elevating blood glucose levels, according to a study published in Clinical Diabetes.

METHODOLOGY:

• Almost half of Americans with diabetes have arthritis, so glycemic control is a concern for many receiving IACS injections.
• IACS injections are known to cause short-term hyperglycemia, but their long-term effects on glycemic control are not well studied.
• For the retrospective cohort study, researchers at Mayo Clinic in Rochester, Minnesota, used electronic health records from 1169 adults who had received an IACS injection in one large joint between 2012 and 2018.
• They analyzed data on A1C levels for study participants from 18 months before and after the injections.
• Researchers assessed if participants had a greater-than-expected (defined as an increase of more than 0.5% above expected) concentration of A1C after the injection, and examined rates of diabetic ketoacidosis and hyperosmolar hyperglycemic syndrome in the 30 days following an injection.

TAKEAWAY:

• Nearly 16% of people experienced a greater-than-expected A1C level after receiving an injection.
• A1C levels rose by an average of 1.2% in the greater-than-expected group, but decreased by an average of 0.2% in the average group.
• One patient had an episode of severe hyperglycemia that was linked to the injection.
• A baseline level of A1C above 8% was the only factor associated with a greater-than-expected increase in the marker after an IACS injection.

IN PRACTICE:

“Although most patients do not experience an increase in A1C after IACS, clinicians should counsel patients with suboptimally controlled diabetes about risks of further hyperglycemia after IACS administration,” the researchers wrote. 

SOURCE: 

The study was led by Terin T. Sytsma, MD, of Mayo Clinic in Rochester, Minnesota.

LIMITATIONS: 

The study was retrospective and could not establish causation. In addition, the population was of residents from one county in Minnesota, and was not racially or ethnically diverse. Details about the injection, such as location and total dose, were not available. The study also did not include a control group. 

DISCLOSURES:

The study was funded by Mayo Clinic and the National Center for Advancing Translational Sciences. The authors reported no relevant disclosures.

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

TOPLINE:

Intra-articular corticosteroid (IACS) injections pose a minimal risk of accelerating diabetes for most people, despite temporarily elevating blood glucose levels, according to a study published in Clinical Diabetes.

METHODOLOGY:

• Almost half of Americans with diabetes have arthritis, so glycemic control is a concern for many receiving IACS injections.
• IACS injections are known to cause short-term hyperglycemia, but their long-term effects on glycemic control are not well studied.
• For the retrospective cohort study, researchers at Mayo Clinic in Rochester, Minnesota, used electronic health records from 1169 adults who had received an IACS injection in one large joint between 2012 and 2018.
• They analyzed data on A1C levels for study participants from 18 months before and after the injections.
• Researchers assessed if participants had a greater-than-expected (defined as an increase of more than 0.5% above expected) concentration of A1C after the injection, and examined rates of diabetic ketoacidosis and hyperosmolar hyperglycemic syndrome in the 30 days following an injection.

TAKEAWAY:

• Nearly 16% of people experienced a greater-than-expected A1C level after receiving an injection.
• A1C levels rose by an average of 1.2% in the greater-than-expected group, but decreased by an average of 0.2% in the average group.
• One patient had an episode of severe hyperglycemia that was linked to the injection.
• A baseline level of A1C above 8% was the only factor associated with a greater-than-expected increase in the marker after an IACS injection.

IN PRACTICE:

“Although most patients do not experience an increase in A1C after IACS, clinicians should counsel patients with suboptimally controlled diabetes about risks of further hyperglycemia after IACS administration,” the researchers wrote. 

SOURCE: 

The study was led by Terin T. Sytsma, MD, of Mayo Clinic in Rochester, Minnesota.

LIMITATIONS: 

The study was retrospective and could not establish causation. In addition, the population was of residents from one county in Minnesota, and was not racially or ethnically diverse. Details about the injection, such as location and total dose, were not available. The study also did not include a control group. 

DISCLOSURES:

The study was funded by Mayo Clinic and the National Center for Advancing Translational Sciences. The authors reported no relevant disclosures.

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

TOPLINE:

Intra-articular corticosteroid (IACS) injections pose a minimal risk of accelerating diabetes for most people, despite temporarily elevating blood glucose levels, according to a study published in Clinical Diabetes.

METHODOLOGY:

• Almost half of Americans with diabetes have arthritis, so glycemic control is a concern for many receiving IACS injections.
• IACS injections are known to cause short-term hyperglycemia, but their long-term effects on glycemic control are not well studied.
• For the retrospective cohort study, researchers at Mayo Clinic in Rochester, Minnesota, used electronic health records from 1169 adults who had received an IACS injection in one large joint between 2012 and 2018.
• They analyzed data on A1C levels for study participants from 18 months before and after the injections.
• Researchers assessed if participants had a greater-than-expected (defined as an increase of more than 0.5% above expected) concentration of A1C after the injection, and examined rates of diabetic ketoacidosis and hyperosmolar hyperglycemic syndrome in the 30 days following an injection.

TAKEAWAY:

• Nearly 16% of people experienced a greater-than-expected A1C level after receiving an injection.
• A1C levels rose by an average of 1.2% in the greater-than-expected group, but decreased by an average of 0.2% in the average group.
• One patient had an episode of severe hyperglycemia that was linked to the injection.
• A baseline level of A1C above 8% was the only factor associated with a greater-than-expected increase in the marker after an IACS injection.

IN PRACTICE:

“Although most patients do not experience an increase in A1C after IACS, clinicians should counsel patients with suboptimally controlled diabetes about risks of further hyperglycemia after IACS administration,” the researchers wrote. 

SOURCE: 

The study was led by Terin T. Sytsma, MD, of Mayo Clinic in Rochester, Minnesota.

LIMITATIONS: 

The study was retrospective and could not establish causation. In addition, the population was of residents from one county in Minnesota, and was not racially or ethnically diverse. Details about the injection, such as location and total dose, were not available. The study also did not include a control group. 

DISCLOSURES:

The study was funded by Mayo Clinic and the National Center for Advancing Translational Sciences. The authors reported no relevant disclosures.

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

TOPLINE:

Sodium-glucose cotransporter 2 (SGLT2) inhibitors are associated with a lower risk for sight-threatening retinopathy than other second-line glucose-lowering medications in patients with type 2 diabetes (T2D).

METHODOLOGY:

• Researchers conducted a nationwide cohort study including 3,544,383 patients with newly diagnosed T2D.
• During the 5-year study period, 159,965 patients were treated with SGLT2 inhibitors, 304,383 received dipeptidyl peptidase-4 (DPP-4) inhibitors, 108,420 took pioglitazone, and 189,618 received sulfonylurea.
• The propensity score matching found 65,930 pairs of patients treated with SGLT2 inhibitors vs DPP-4 inhibitors, 93,760 pairs treated with SGLT2 inhibitors vs pioglitazone, and 42,121 pairs treated with SGLT2 inhibitors vs sulfonylurea.
• The main outcome was sight-threatening retinopathy in patients with at least two outpatient visits or one hospitalization or anti-vascular endothelial growth factor injections.

TAKEAWAY:

• SGLT2 inhibitors reduced sight-threatening retinopathy risk by 43% vs DPP-4 inhibitors (adjusted hazard ratio [aHR], 0.57), 38% vs sulfonylurea (aHR, 0.62), and 25% vs pioglitazone (aHR, 0.75; P < .001 for all).
• Similarly, the cumulative incidence of sight-threatening retinopathy was significantly lower with SGLT2 inhibitors vs DPP-4i, pioglitazone, or sulfonylurea (P < .001 for all).
• All three SGLT2 inhibitor treatments, namely, empagliflozin, dapagliflozin, and canagliflozin, were more effective than DPP-4 inhibitors, pioglitazone, or sulfonylurea in reducing the risk for sight-threatening retinopathy.

IN PRACTICE:

“SGLT2i treatments were as safe and effective in slowing the progression of diabetic retinopathy as in lowering the risk for diabetic nephropathy in patients with T2D,” the authors wrote.

SOURCE:

This study was led by Fu-Shun Yen, MD, a private practitioner from Taiwan, and was published online on December 20, 2023, in JAMA Network Open.

LIMITATIONS:

There were insufficient data regarding the participants’ alcohol use, physical activity, smoking status, and family history, which may have had an impact on the results.

The study mainly involved individuals of Taiwanese ethnicity.

DISCLOSURES:

This study was supported partly by the Taiwan Ministry of Health and Welfare Clinical Trial Center, the MOST Clinical Trial Consortium for Stroke, and other sources. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Sodium-glucose cotransporter 2 (SGLT2) inhibitors are associated with a lower risk for sight-threatening retinopathy than other second-line glucose-lowering medications in patients with type 2 diabetes (T2D).

METHODOLOGY:

• Researchers conducted a nationwide cohort study including 3,544,383 patients with newly diagnosed T2D.
• During the 5-year study period, 159,965 patients were treated with SGLT2 inhibitors, 304,383 received dipeptidyl peptidase-4 (DPP-4) inhibitors, 108,420 took pioglitazone, and 189,618 received sulfonylurea.
• The propensity score matching found 65,930 pairs of patients treated with SGLT2 inhibitors vs DPP-4 inhibitors, 93,760 pairs treated with SGLT2 inhibitors vs pioglitazone, and 42,121 pairs treated with SGLT2 inhibitors vs sulfonylurea.
• The main outcome was sight-threatening retinopathy in patients with at least two outpatient visits or one hospitalization or anti-vascular endothelial growth factor injections.

TAKEAWAY:

• SGLT2 inhibitors reduced sight-threatening retinopathy risk by 43% vs DPP-4 inhibitors (adjusted hazard ratio [aHR], 0.57), 38% vs sulfonylurea (aHR, 0.62), and 25% vs pioglitazone (aHR, 0.75; P < .001 for all).
• Similarly, the cumulative incidence of sight-threatening retinopathy was significantly lower with SGLT2 inhibitors vs DPP-4i, pioglitazone, or sulfonylurea (P < .001 for all).
• All three SGLT2 inhibitor treatments, namely, empagliflozin, dapagliflozin, and canagliflozin, were more effective than DPP-4 inhibitors, pioglitazone, or sulfonylurea in reducing the risk for sight-threatening retinopathy.

IN PRACTICE:

“SGLT2i treatments were as safe and effective in slowing the progression of diabetic retinopathy as in lowering the risk for diabetic nephropathy in patients with T2D,” the authors wrote.

SOURCE:

This study was led by Fu-Shun Yen, MD, a private practitioner from Taiwan, and was published online on December 20, 2023, in JAMA Network Open.

LIMITATIONS:

There were insufficient data regarding the participants’ alcohol use, physical activity, smoking status, and family history, which may have had an impact on the results.

The study mainly involved individuals of Taiwanese ethnicity.

DISCLOSURES:

This study was supported partly by the Taiwan Ministry of Health and Welfare Clinical Trial Center, the MOST Clinical Trial Consortium for Stroke, and other sources. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

Sodium-glucose cotransporter 2 (SGLT2) inhibitors are associated with a lower risk for sight-threatening retinopathy than other second-line glucose-lowering medications in patients with type 2 diabetes (T2D).

METHODOLOGY:

• Researchers conducted a nationwide cohort study including 3,544,383 patients with newly diagnosed T2D.
• During the 5-year study period, 159,965 patients were treated with SGLT2 inhibitors, 304,383 received dipeptidyl peptidase-4 (DPP-4) inhibitors, 108,420 took pioglitazone, and 189,618 received sulfonylurea.
• The propensity score matching found 65,930 pairs of patients treated with SGLT2 inhibitors vs DPP-4 inhibitors, 93,760 pairs treated with SGLT2 inhibitors vs pioglitazone, and 42,121 pairs treated with SGLT2 inhibitors vs sulfonylurea.
• The main outcome was sight-threatening retinopathy in patients with at least two outpatient visits or one hospitalization or anti-vascular endothelial growth factor injections.

TAKEAWAY:

• SGLT2 inhibitors reduced sight-threatening retinopathy risk by 43% vs DPP-4 inhibitors (adjusted hazard ratio [aHR], 0.57), 38% vs sulfonylurea (aHR, 0.62), and 25% vs pioglitazone (aHR, 0.75; P < .001 for all).
• Similarly, the cumulative incidence of sight-threatening retinopathy was significantly lower with SGLT2 inhibitors vs DPP-4i, pioglitazone, or sulfonylurea (P < .001 for all).
• All three SGLT2 inhibitor treatments, namely, empagliflozin, dapagliflozin, and canagliflozin, were more effective than DPP-4 inhibitors, pioglitazone, or sulfonylurea in reducing the risk for sight-threatening retinopathy.

IN PRACTICE:

“SGLT2i treatments were as safe and effective in slowing the progression of diabetic retinopathy as in lowering the risk for diabetic nephropathy in patients with T2D,” the authors wrote.

SOURCE:

This study was led by Fu-Shun Yen, MD, a private practitioner from Taiwan, and was published online on December 20, 2023, in JAMA Network Open.

LIMITATIONS:

There were insufficient data regarding the participants’ alcohol use, physical activity, smoking status, and family history, which may have had an impact on the results.

The study mainly involved individuals of Taiwanese ethnicity.

DISCLOSURES:

This study was supported partly by the Taiwan Ministry of Health and Welfare Clinical Trial Center, the MOST Clinical Trial Consortium for Stroke, and other sources. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

People who habitually add salt to their meals at the table may unknowingly be risking their kidneys, according to a study utilizing UK Biobank data. Chronic salt additions are associated with an elevated risk of developing chronic kidney disease (CKD), as revealed by researchers led by Rui Tang, a doctoral candidate in epidemiology at Tulane University in New Orleans, Louisiana. The study was published in JAMA Network Open.

Large Study Sample

In a population-based cohort study comprising over 460,000 UK Biobank participants aged 37-73 years, the researchers explored the association between adding table salt to food and increased CKD risk.

Participants indicated how often they added salt to their meals: Never or rarely, sometimes, often, or always. The follow-up period exceeded a decade, and median duration was 11.8 years. During this time, approximately 22,000 new CKD cases were documented. Data analysis revealed a significantly higher CKD risk among those who frequently added salt.

The extent of risk elevation varied with the frequency of salt additions. Even occasional salters had a 7% higher risk than those who never or rarely added salt. For frequent salters, the risk increased by 12%, and for those who always added salt, it rose to 29%. These results were adjusted for age and gender.

Worse Overall Health

The research group noted that individuals who frequently added salt were generally less healthy, adopting an unhealthier lifestyle and having lower socioeconomic status. They exhibited higher body mass index (BMI), were more likely to smoke, had diabetes or cardiovascular diseases, and had reduced estimated glomerular filtration rate (eGFR) at the beginning of the study. Moreover, their Townsend Deprivation Index, indicating material deprivation, was higher.

Considering these factors, the researchers adjusted the results not only for age and gender but also for ethnicity, Townsend Deprivation Index, eGFR, BMI, smoking status, alcohol consumption, physical activity, elevated cholesterol levels, diabetes, cardiovascular diseases, hypertension, infectious diseases, immune system disorders, and the use of nephrotoxic medications.

Association Persists

Even after accounting for these factors, a significant, albeit attenuated, association between salt additions and CKD risk remained. The risk increased by 2% for occasional salters, 5% for frequent salters, and 6% for those who always added salt.

The research group concluded that adding salt to meals could be associated with an increased risk for CKD in the general population. However, they highlighted several limitations that should be considered when interpreting the study results.

Reducing Salt 

Primarily, self-reported frequency of salt addition doesn’t precisely reflect actual salt consumption. While earlier studies validated the accuracy of this variable, the researchers acknowledged the possibility that frequent salt addition may merely be a marker for an unhealthy lifestyle.

Nevertheless, the authors speculated that reducing the frequency of salt additions to meals could contribute to lowering CKD risk in the general population. They suggested validating their results in post hoc analyses or follow-up studies from clinical trials.
 

This article was translated from the Medscape German edition. A version of this article appeared on Medscape.com.

People who habitually add salt to their meals at the table may unknowingly be risking their kidneys, according to a study utilizing UK Biobank data. Chronic salt additions are associated with an elevated risk of developing chronic kidney disease (CKD), as revealed by researchers led by Rui Tang, a doctoral candidate in epidemiology at Tulane University in New Orleans, Louisiana. The study was published in JAMA Network Open.

Large Study Sample

In a population-based cohort study comprising over 460,000 UK Biobank participants aged 37-73 years, the researchers explored the association between adding table salt to food and increased CKD risk.

Participants indicated how often they added salt to their meals: Never or rarely, sometimes, often, or always. The follow-up period exceeded a decade, and median duration was 11.8 years. During this time, approximately 22,000 new CKD cases were documented. Data analysis revealed a significantly higher CKD risk among those who frequently added salt.

The extent of risk elevation varied with the frequency of salt additions. Even occasional salters had a 7% higher risk than those who never or rarely added salt. For frequent salters, the risk increased by 12%, and for those who always added salt, it rose to 29%. These results were adjusted for age and gender.

Worse Overall Health

The research group noted that individuals who frequently added salt were generally less healthy, adopting an unhealthier lifestyle and having lower socioeconomic status. They exhibited higher body mass index (BMI), were more likely to smoke, had diabetes or cardiovascular diseases, and had reduced estimated glomerular filtration rate (eGFR) at the beginning of the study. Moreover, their Townsend Deprivation Index, indicating material deprivation, was higher.

Considering these factors, the researchers adjusted the results not only for age and gender but also for ethnicity, Townsend Deprivation Index, eGFR, BMI, smoking status, alcohol consumption, physical activity, elevated cholesterol levels, diabetes, cardiovascular diseases, hypertension, infectious diseases, immune system disorders, and the use of nephrotoxic medications.

Association Persists

Even after accounting for these factors, a significant, albeit attenuated, association between salt additions and CKD risk remained. The risk increased by 2% for occasional salters, 5% for frequent salters, and 6% for those who always added salt.

The research group concluded that adding salt to meals could be associated with an increased risk for CKD in the general population. However, they highlighted several limitations that should be considered when interpreting the study results.

Reducing Salt 

Primarily, self-reported frequency of salt addition doesn’t precisely reflect actual salt consumption. While earlier studies validated the accuracy of this variable, the researchers acknowledged the possibility that frequent salt addition may merely be a marker for an unhealthy lifestyle.

Nevertheless, the authors speculated that reducing the frequency of salt additions to meals could contribute to lowering CKD risk in the general population. They suggested validating their results in post hoc analyses or follow-up studies from clinical trials.
 

This article was translated from the Medscape German edition. A version of this article appeared on Medscape.com.

People who habitually add salt to their meals at the table may unknowingly be risking their kidneys, according to a study utilizing UK Biobank data. Chronic salt additions are associated with an elevated risk of developing chronic kidney disease (CKD), as revealed by researchers led by Rui Tang, a doctoral candidate in epidemiology at Tulane University in New Orleans, Louisiana. The study was published in JAMA Network Open.

Large Study Sample

In a population-based cohort study comprising over 460,000 UK Biobank participants aged 37-73 years, the researchers explored the association between adding table salt to food and increased CKD risk.

Participants indicated how often they added salt to their meals: Never or rarely, sometimes, often, or always. The follow-up period exceeded a decade, and median duration was 11.8 years. During this time, approximately 22,000 new CKD cases were documented. Data analysis revealed a significantly higher CKD risk among those who frequently added salt.

The extent of risk elevation varied with the frequency of salt additions. Even occasional salters had a 7% higher risk than those who never or rarely added salt. For frequent salters, the risk increased by 12%, and for those who always added salt, it rose to 29%. These results were adjusted for age and gender.

Worse Overall Health

The research group noted that individuals who frequently added salt were generally less healthy, adopting an unhealthier lifestyle and having lower socioeconomic status. They exhibited higher body mass index (BMI), were more likely to smoke, had diabetes or cardiovascular diseases, and had reduced estimated glomerular filtration rate (eGFR) at the beginning of the study. Moreover, their Townsend Deprivation Index, indicating material deprivation, was higher.

Considering these factors, the researchers adjusted the results not only for age and gender but also for ethnicity, Townsend Deprivation Index, eGFR, BMI, smoking status, alcohol consumption, physical activity, elevated cholesterol levels, diabetes, cardiovascular diseases, hypertension, infectious diseases, immune system disorders, and the use of nephrotoxic medications.

Association Persists

Even after accounting for these factors, a significant, albeit attenuated, association between salt additions and CKD risk remained. The risk increased by 2% for occasional salters, 5% for frequent salters, and 6% for those who always added salt.

The research group concluded that adding salt to meals could be associated with an increased risk for CKD in the general population. However, they highlighted several limitations that should be considered when interpreting the study results.

Reducing Salt 

Primarily, self-reported frequency of salt addition doesn’t precisely reflect actual salt consumption. While earlier studies validated the accuracy of this variable, the researchers acknowledged the possibility that frequent salt addition may merely be a marker for an unhealthy lifestyle.

Nevertheless, the authors speculated that reducing the frequency of salt additions to meals could contribute to lowering CKD risk in the general population. They suggested validating their results in post hoc analyses or follow-up studies from clinical trials.
 

This article was translated from the Medscape German edition. A version of this article appeared on Medscape.com.

TOPLINE:

New data provide no support for an increased risk for pancreatic cancer with use of a glucagon-like peptide-1 receptor agonist (GLP-1 RA) for up to 7 years, although longer-term data are needed, researchers said.

METHODOLOGY:

• Some studies have raised concern about a possible increased risk for pancreatitis and pancreatic cancer in patients taking a GLP-1 RA. 
• Investigators behind this population-based cohort study assessed the association of GLP-1 RA treatment with pancreatic cancer incidence over a median of 7 years in 543,595 adults (mean age, 59.9 years; 51% women) with type 2 diabetes. 
• Treatment with basal insulin was used as an active comparator. 
• The analyses accounted for major confounding factors and time-related biases and adjusted for treatment with other glucose-lowering medications and a history of pancreatitis. 

TAKEAWAY: 

• During the study period, 33,377 patients (6.1%) used GLP-1 RAs and 106,849 (19.7%) used basal insulin, with 1665 of all patients diagnosed with pancreatic cancer. 
• There was no evidence that GLP-1 RA use increased pancreatic cancer risk compared with basal insulin. 
• The estimated hazard ratio (HR) for pancreatic cancer associated with incremental use of one defined daily dose per day of GLP-1 RA compared with basal insulin in years 5-7 was 0.50 (95% CI, 0.15-1.71). 
• New-user and prevalent new-user analyses showed HRs from year 5 onward following initiation of a GLP-1 RA vs basal insulin was 0.52 (95% CI, 0.19-1.41) and 0.75 (95% CI, 0.37-1.53), respectively. 

IN PRACTICE: 

Using several analytical approaches, these findings do not suggest an increase in pancreatic cancer incidence over 7 years following the start of GLP-1 RA treatment, according to the investigation. “However, monitoring for pancreatic cancer risk beyond 7 years following initiation of treatment is still required,” the authors wrote.

SOURCE:

The study, with first author Rachel Dankner, MD, MPH, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, Israel, was published online on January 4, 2024, in JAMA Network Open. 

LIMITATIONS: 

Data on the exact type of GLP-1 RA were not available. The analyses accounted for history of pancreatitis but not alcohol use or exposure to pesticides/chemicals. Because of the risk for bias due to reverse causation, an emphasis was placed on drug effects several years after their initiation. However, this reduced the number of pancreatic cancer cases available and led to estimated HRs with wider CIs. 

DISCLOSURES: 

The study received no specific funding. The authors disclosed no relevant conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

New data provide no support for an increased risk for pancreatic cancer with use of a glucagon-like peptide-1 receptor agonist (GLP-1 RA) for up to 7 years, although longer-term data are needed, researchers said.

METHODOLOGY:

• Some studies have raised concern about a possible increased risk for pancreatitis and pancreatic cancer in patients taking a GLP-1 RA. 
• Investigators behind this population-based cohort study assessed the association of GLP-1 RA treatment with pancreatic cancer incidence over a median of 7 years in 543,595 adults (mean age, 59.9 years; 51% women) with type 2 diabetes. 
• Treatment with basal insulin was used as an active comparator. 
• The analyses accounted for major confounding factors and time-related biases and adjusted for treatment with other glucose-lowering medications and a history of pancreatitis. 

TAKEAWAY: 

• During the study period, 33,377 patients (6.1%) used GLP-1 RAs and 106,849 (19.7%) used basal insulin, with 1665 of all patients diagnosed with pancreatic cancer. 
• There was no evidence that GLP-1 RA use increased pancreatic cancer risk compared with basal insulin. 
• The estimated hazard ratio (HR) for pancreatic cancer associated with incremental use of one defined daily dose per day of GLP-1 RA compared with basal insulin in years 5-7 was 0.50 (95% CI, 0.15-1.71). 
• New-user and prevalent new-user analyses showed HRs from year 5 onward following initiation of a GLP-1 RA vs basal insulin was 0.52 (95% CI, 0.19-1.41) and 0.75 (95% CI, 0.37-1.53), respectively. 

IN PRACTICE: 

Using several analytical approaches, these findings do not suggest an increase in pancreatic cancer incidence over 7 years following the start of GLP-1 RA treatment, according to the investigation. “However, monitoring for pancreatic cancer risk beyond 7 years following initiation of treatment is still required,” the authors wrote.

SOURCE:

The study, with first author Rachel Dankner, MD, MPH, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, Israel, was published online on January 4, 2024, in JAMA Network Open. 

LIMITATIONS: 

Data on the exact type of GLP-1 RA were not available. The analyses accounted for history of pancreatitis but not alcohol use or exposure to pesticides/chemicals. Because of the risk for bias due to reverse causation, an emphasis was placed on drug effects several years after their initiation. However, this reduced the number of pancreatic cancer cases available and led to estimated HRs with wider CIs. 

DISCLOSURES: 

The study received no specific funding. The authors disclosed no relevant conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

New data provide no support for an increased risk for pancreatic cancer with use of a glucagon-like peptide-1 receptor agonist (GLP-1 RA) for up to 7 years, although longer-term data are needed, researchers said.

METHODOLOGY:

• Some studies have raised concern about a possible increased risk for pancreatitis and pancreatic cancer in patients taking a GLP-1 RA. 
• Investigators behind this population-based cohort study assessed the association of GLP-1 RA treatment with pancreatic cancer incidence over a median of 7 years in 543,595 adults (mean age, 59.9 years; 51% women) with type 2 diabetes. 
• Treatment with basal insulin was used as an active comparator. 
• The analyses accounted for major confounding factors and time-related biases and adjusted for treatment with other glucose-lowering medications and a history of pancreatitis. 

TAKEAWAY: 

• During the study period, 33,377 patients (6.1%) used GLP-1 RAs and 106,849 (19.7%) used basal insulin, with 1665 of all patients diagnosed with pancreatic cancer. 
• There was no evidence that GLP-1 RA use increased pancreatic cancer risk compared with basal insulin. 
• The estimated hazard ratio (HR) for pancreatic cancer associated with incremental use of one defined daily dose per day of GLP-1 RA compared with basal insulin in years 5-7 was 0.50 (95% CI, 0.15-1.71). 
• New-user and prevalent new-user analyses showed HRs from year 5 onward following initiation of a GLP-1 RA vs basal insulin was 0.52 (95% CI, 0.19-1.41) and 0.75 (95% CI, 0.37-1.53), respectively. 

IN PRACTICE: 

Using several analytical approaches, these findings do not suggest an increase in pancreatic cancer incidence over 7 years following the start of GLP-1 RA treatment, according to the investigation. “However, monitoring for pancreatic cancer risk beyond 7 years following initiation of treatment is still required,” the authors wrote.

SOURCE:

The study, with first author Rachel Dankner, MD, MPH, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, Israel, was published online on January 4, 2024, in JAMA Network Open. 

LIMITATIONS: 

Data on the exact type of GLP-1 RA were not available. The analyses accounted for history of pancreatitis but not alcohol use or exposure to pesticides/chemicals. Because of the risk for bias due to reverse causation, an emphasis was placed on drug effects several years after their initiation. However, this reduced the number of pancreatic cancer cases available and led to estimated HRs with wider CIs. 

DISCLOSURES: 

The study received no specific funding. The authors disclosed no relevant conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

A meta-analysis showed that all doses of tirzepatide, a novel twincretin molecule, reduced albuminuria levels without affecting renal function in patients with type 2 diabetes (T2D).

METHODOLOGY:

• A meta-analysis of eight randomized controlled trials compared the effects of tirzepatide and control treatment (placebo or any active comparator) on albuminuria levels and renal function in patients with T2D.
• The pooled data included 6226 patients with T2D who received tirzepatide (5, 10, or 15 mg) and 3307 participants in the control group who received placebo, semaglutide, or insulin.
• The primary outcome was the difference in absolute change in urinary albumin-creatinine ratio (UACR) from baseline between the tirzepatide and control groups.
• The secondary efficacy endpoint was the comparative change in estimated glomerular filtration rate (eGFR) between the two groups.

TAKEAWAY:

• Overall, tirzepatide reduced UACR by ~27% (mean difference [MD], −26.9%; P < .001) compared with controls.
• The reduction in UACR was consistent across all tirzepatide doses (5 mg: MD, −23.12%; 10 mg: MD, −27.87%; 15 mg: MD, −27.15).
• Benefits of tirzepatide were even more pronounced in patients with increased albuminuria levels (UACR ≥ 30 mg/g) at baseline (MD, −41.42%; P < .001) than in controls.
• However, tirzepatide vs control treatment did not have a significant effect on eGFR levels (P = .46), which indicated no negative effect of tirzepatide on renal function.

IN PRACTICE:

“Tirzepatide seems to be a ‘rising star’ for the prevention and delaying of chronic kidney disease and related, surrogate renal outcomes in patients with T2DM,” the authors wrote.

SOURCE:

Paschalis Karakasis, MD, Aristotle University of Thessaloniki, Thessaloniki, Greece, led this study, which was published online December 20, 2023, in the journal Diabetes, Obesity and Metabolism.

LIMITATIONS:

There was significant heterogeneity between the studies. Bias may have come from the open-label design in the included randomized controlled trials. The pathophysiological mechanisms underlying the effect of tirzepatide on chronic kidney disease pathogenesis are speculative.

DISCLOSURES:

The paper did not receive any specific funding. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

A meta-analysis showed that all doses of tirzepatide, a novel twincretin molecule, reduced albuminuria levels without affecting renal function in patients with type 2 diabetes (T2D).

METHODOLOGY:

• A meta-analysis of eight randomized controlled trials compared the effects of tirzepatide and control treatment (placebo or any active comparator) on albuminuria levels and renal function in patients with T2D.
• The pooled data included 6226 patients with T2D who received tirzepatide (5, 10, or 15 mg) and 3307 participants in the control group who received placebo, semaglutide, or insulin.
• The primary outcome was the difference in absolute change in urinary albumin-creatinine ratio (UACR) from baseline between the tirzepatide and control groups.
• The secondary efficacy endpoint was the comparative change in estimated glomerular filtration rate (eGFR) between the two groups.

TAKEAWAY:

• Overall, tirzepatide reduced UACR by ~27% (mean difference [MD], −26.9%; P < .001) compared with controls.
• The reduction in UACR was consistent across all tirzepatide doses (5 mg: MD, −23.12%; 10 mg: MD, −27.87%; 15 mg: MD, −27.15).
• Benefits of tirzepatide were even more pronounced in patients with increased albuminuria levels (UACR ≥ 30 mg/g) at baseline (MD, −41.42%; P < .001) than in controls.
• However, tirzepatide vs control treatment did not have a significant effect on eGFR levels (P = .46), which indicated no negative effect of tirzepatide on renal function.

IN PRACTICE:

“Tirzepatide seems to be a ‘rising star’ for the prevention and delaying of chronic kidney disease and related, surrogate renal outcomes in patients with T2DM,” the authors wrote.

SOURCE:

Paschalis Karakasis, MD, Aristotle University of Thessaloniki, Thessaloniki, Greece, led this study, which was published online December 20, 2023, in the journal Diabetes, Obesity and Metabolism.

LIMITATIONS:

There was significant heterogeneity between the studies. Bias may have come from the open-label design in the included randomized controlled trials. The pathophysiological mechanisms underlying the effect of tirzepatide on chronic kidney disease pathogenesis are speculative.

DISCLOSURES:

The paper did not receive any specific funding. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

TOPLINE:

A meta-analysis showed that all doses of tirzepatide, a novel twincretin molecule, reduced albuminuria levels without affecting renal function in patients with type 2 diabetes (T2D).

METHODOLOGY:

• A meta-analysis of eight randomized controlled trials compared the effects of tirzepatide and control treatment (placebo or any active comparator) on albuminuria levels and renal function in patients with T2D.
• The pooled data included 6226 patients with T2D who received tirzepatide (5, 10, or 15 mg) and 3307 participants in the control group who received placebo, semaglutide, or insulin.
• The primary outcome was the difference in absolute change in urinary albumin-creatinine ratio (UACR) from baseline between the tirzepatide and control groups.
• The secondary efficacy endpoint was the comparative change in estimated glomerular filtration rate (eGFR) between the two groups.

TAKEAWAY:

• Overall, tirzepatide reduced UACR by ~27% (mean difference [MD], −26.9%; P < .001) compared with controls.
• The reduction in UACR was consistent across all tirzepatide doses (5 mg: MD, −23.12%; 10 mg: MD, −27.87%; 15 mg: MD, −27.15).
• Benefits of tirzepatide were even more pronounced in patients with increased albuminuria levels (UACR ≥ 30 mg/g) at baseline (MD, −41.42%; P < .001) than in controls.
• However, tirzepatide vs control treatment did not have a significant effect on eGFR levels (P = .46), which indicated no negative effect of tirzepatide on renal function.

IN PRACTICE:

“Tirzepatide seems to be a ‘rising star’ for the prevention and delaying of chronic kidney disease and related, surrogate renal outcomes in patients with T2DM,” the authors wrote.

SOURCE:

Paschalis Karakasis, MD, Aristotle University of Thessaloniki, Thessaloniki, Greece, led this study, which was published online December 20, 2023, in the journal Diabetes, Obesity and Metabolism.

LIMITATIONS:

There was significant heterogeneity between the studies. Bias may have come from the open-label design in the included randomized controlled trials. The pathophysiological mechanisms underlying the effect of tirzepatide on chronic kidney disease pathogenesis are speculative.

DISCLOSURES:

The paper did not receive any specific funding. The authors declared no conflicts of interest.

A version of this article appeared on Medscape.com.

Using an advanced microscopic technique, American researchers have detected 100,000 nanoplastic molecules per liter of water in plastic bottles. Because of their small size, these particles can enter the bloodstream, cells, and the brain, thus posing potential health risks. The study, recently published in the Proceedings of the National Academy of Sciences, raises concerns about the impact of these nanoparticles.

An Unknown Realm

In recent years, the global presence of tiny particles known as microplastics has raised concerns. The particles are found in polar ice, soil, drinking water, and food. Formed as plastics break down into increasingly small pieces, these particles are consumed by humans and other organisms, with unknown effects on health and ecosystems. Whereas macroplastics have been found in various organs, including the lungs and liver, the study marks a unique exploration into the world of nanoplastics.

Concerns about nanoplastic presence in humans intensified when a 2018 study revealed contamination signs in 93% of 259 examined bottles from nine countries.

The novelty of this research lies in its focus, using a refined spectrometry method, on the poorly understood world of nanoplastics, which derive from the decomposition of microplastics. For the first time, American researchers, including biophysicists and chemists, counted and identified these tiny particles in bottled water. On average, they found around 240,000 detectable plastic fragments per liter, which is 10-100 times more than previous estimates based on larger sizes.

Microplastics are defined as fragments ranging from 5 mm to 1 µm, whereas nanoplastics, particles < 1 µm, are measured in billionths of a meter.

In contrast to microplastics, nanoplastics are so small that they can traverse the intestines and lungs and move directly into the bloodstream, reaching organs such as the heart or brain or even the fetus via the placenta.

“This was previously an obscure, unexplored area. Toxicity studies could only speculate about what was in there,” said Beizhan Yan, PhD, coauthor of the study and environmental chemist at the Lamont–Doherty Earth Observatory of Columbia University, New York. “This study opens a window for us to observe a world we were not exposed to before.”
 

90% Nanoplastics Found

The new study employed a technique called stimulated Raman scattering microscopy, which was invented by study coauthor Wei Min, a biophysicist at Columbia. This method involves probing samples simultaneously with two lasers tuned to resonate specific molecules.

Researchers tested three bottled water brands that are popular in the United States, analyzing plastic particles up to 100 nm in size. They identified 110,000-370,000 plastic particles per liter. About 90% were nanoplastics — which are invisible by standard imaging techniques — and the rest were microplastics. The study also identified the seven plastics involved.

The most common is polyamide, a type of nylon, likely from plastic filters purportedly used to purify water before bottling. Next is polyethylene terephthalate, which is commonly used for water bottles and other food containers. Researchers also found other common plastics, including polystyrene, polyvinyl chloride, and methyl methacrylate, used in various industrial processes.
 

Not Size But Quantity

What’s more concerning is that the seven types of plastics accounted for only about 10% of all nanoparticles found in the samples. Researchers have no idea about the composition of the remaining 90%. If these are all nanoparticles, their number could reach tens of millions per liter, representing the complex composition of seemingly simple water samples, as noted by the authors.

Researchers now plan to expand beyond bottled water, exploring the vast realm of nanoplastics. They emphasize that, in terms of mass, nanoplastics are far smaller than microplastics, but “it’s not about size. It’s about the numbers as smaller things can easily penetrate us.”

The team aims to study tap water, which also contains microplastics but in much smaller proportions than bottled water.

This article was translated from the Medscape French edition. 

Using an advanced microscopic technique, American researchers have detected 100,000 nanoplastic molecules per liter of water in plastic bottles. Because of their small size, these particles can enter the bloodstream, cells, and the brain, thus posing potential health risks. The study, recently published in the Proceedings of the National Academy of Sciences, raises concerns about the impact of these nanoparticles.

An Unknown Realm

In recent years, the global presence of tiny particles known as microplastics has raised concerns. The particles are found in polar ice, soil, drinking water, and food. Formed as plastics break down into increasingly small pieces, these particles are consumed by humans and other organisms, with unknown effects on health and ecosystems. Whereas macroplastics have been found in various organs, including the lungs and liver, the study marks a unique exploration into the world of nanoplastics.

Concerns about nanoplastic presence in humans intensified when a 2018 study revealed contamination signs in 93% of 259 examined bottles from nine countries.

The novelty of this research lies in its focus, using a refined spectrometry method, on the poorly understood world of nanoplastics, which derive from the decomposition of microplastics. For the first time, American researchers, including biophysicists and chemists, counted and identified these tiny particles in bottled water. On average, they found around 240,000 detectable plastic fragments per liter, which is 10-100 times more than previous estimates based on larger sizes.

Microplastics are defined as fragments ranging from 5 mm to 1 µm, whereas nanoplastics, particles < 1 µm, are measured in billionths of a meter.

In contrast to microplastics, nanoplastics are so small that they can traverse the intestines and lungs and move directly into the bloodstream, reaching organs such as the heart or brain or even the fetus via the placenta.

“This was previously an obscure, unexplored area. Toxicity studies could only speculate about what was in there,” said Beizhan Yan, PhD, coauthor of the study and environmental chemist at the Lamont–Doherty Earth Observatory of Columbia University, New York. “This study opens a window for us to observe a world we were not exposed to before.”
 

90% Nanoplastics Found

The new study employed a technique called stimulated Raman scattering microscopy, which was invented by study coauthor Wei Min, a biophysicist at Columbia. This method involves probing samples simultaneously with two lasers tuned to resonate specific molecules.

Researchers tested three bottled water brands that are popular in the United States, analyzing plastic particles up to 100 nm in size. They identified 110,000-370,000 plastic particles per liter. About 90% were nanoplastics — which are invisible by standard imaging techniques — and the rest were microplastics. The study also identified the seven plastics involved.

The most common is polyamide, a type of nylon, likely from plastic filters purportedly used to purify water before bottling. Next is polyethylene terephthalate, which is commonly used for water bottles and other food containers. Researchers also found other common plastics, including polystyrene, polyvinyl chloride, and methyl methacrylate, used in various industrial processes.
 

Not Size But Quantity

What’s more concerning is that the seven types of plastics accounted for only about 10% of all nanoparticles found in the samples. Researchers have no idea about the composition of the remaining 90%. If these are all nanoparticles, their number could reach tens of millions per liter, representing the complex composition of seemingly simple water samples, as noted by the authors.

Researchers now plan to expand beyond bottled water, exploring the vast realm of nanoplastics. They emphasize that, in terms of mass, nanoplastics are far smaller than microplastics, but “it’s not about size. It’s about the numbers as smaller things can easily penetrate us.”

The team aims to study tap water, which also contains microplastics but in much smaller proportions than bottled water.

This article was translated from the Medscape French edition. 

Using an advanced microscopic technique, American researchers have detected 100,000 nanoplastic molecules per liter of water in plastic bottles. Because of their small size, these particles can enter the bloodstream, cells, and the brain, thus posing potential health risks. The study, recently published in the Proceedings of the National Academy of Sciences, raises concerns about the impact of these nanoparticles.

An Unknown Realm

In recent years, the global presence of tiny particles known as microplastics has raised concerns. The particles are found in polar ice, soil, drinking water, and food. Formed as plastics break down into increasingly small pieces, these particles are consumed by humans and other organisms, with unknown effects on health and ecosystems. Whereas macroplastics have been found in various organs, including the lungs and liver, the study marks a unique exploration into the world of nanoplastics.

Concerns about nanoplastic presence in humans intensified when a 2018 study revealed contamination signs in 93% of 259 examined bottles from nine countries.

The novelty of this research lies in its focus, using a refined spectrometry method, on the poorly understood world of nanoplastics, which derive from the decomposition of microplastics. For the first time, American researchers, including biophysicists and chemists, counted and identified these tiny particles in bottled water. On average, they found around 240,000 detectable plastic fragments per liter, which is 10-100 times more than previous estimates based on larger sizes.

Microplastics are defined as fragments ranging from 5 mm to 1 µm, whereas nanoplastics, particles < 1 µm, are measured in billionths of a meter.

In contrast to microplastics, nanoplastics are so small that they can traverse the intestines and lungs and move directly into the bloodstream, reaching organs such as the heart or brain or even the fetus via the placenta.

“This was previously an obscure, unexplored area. Toxicity studies could only speculate about what was in there,” said Beizhan Yan, PhD, coauthor of the study and environmental chemist at the Lamont–Doherty Earth Observatory of Columbia University, New York. “This study opens a window for us to observe a world we were not exposed to before.”
 

90% Nanoplastics Found

The new study employed a technique called stimulated Raman scattering microscopy, which was invented by study coauthor Wei Min, a biophysicist at Columbia. This method involves probing samples simultaneously with two lasers tuned to resonate specific molecules.

Researchers tested three bottled water brands that are popular in the United States, analyzing plastic particles up to 100 nm in size. They identified 110,000-370,000 plastic particles per liter. About 90% were nanoplastics — which are invisible by standard imaging techniques — and the rest were microplastics. The study also identified the seven plastics involved.

The most common is polyamide, a type of nylon, likely from plastic filters purportedly used to purify water before bottling. Next is polyethylene terephthalate, which is commonly used for water bottles and other food containers. Researchers also found other common plastics, including polystyrene, polyvinyl chloride, and methyl methacrylate, used in various industrial processes.
 

Not Size But Quantity

What’s more concerning is that the seven types of plastics accounted for only about 10% of all nanoparticles found in the samples. Researchers have no idea about the composition of the remaining 90%. If these are all nanoparticles, their number could reach tens of millions per liter, representing the complex composition of seemingly simple water samples, as noted by the authors.

Researchers now plan to expand beyond bottled water, exploring the vast realm of nanoplastics. They emphasize that, in terms of mass, nanoplastics are far smaller than microplastics, but “it’s not about size. It’s about the numbers as smaller things can easily penetrate us.”

The team aims to study tap water, which also contains microplastics but in much smaller proportions than bottled water.

This article was translated from the Medscape French edition.