Are your patients getting enough sleep?

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The Centers for Disease Control and Prevention offers information to teach patients about the importance of getting sufficient sleep. “Are you getting enough sleep?” is available at http://www.cdc.gov/Features/Sleep/. It explains how many hours of sleep people need each night and describes common sleep disorders, including insomnia, narcolepsy, restless leg syndrome, and sleep apnea. The online resource also offers tools to improve the quality of sleep and tips on how to sleep through the night.

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The Centers for Disease Control and Prevention offers information to teach patients about the importance of getting sufficient sleep. “Are you getting enough sleep?” is available at http://www.cdc.gov/Features/Sleep/. It explains how many hours of sleep people need each night and describes common sleep disorders, including insomnia, narcolepsy, restless leg syndrome, and sleep apnea. The online resource also offers tools to improve the quality of sleep and tips on how to sleep through the night.

The Centers for Disease Control and Prevention offers information to teach patients about the importance of getting sufficient sleep. “Are you getting enough sleep?” is available at http://www.cdc.gov/Features/Sleep/. It explains how many hours of sleep people need each night and describes common sleep disorders, including insomnia, narcolepsy, restless leg syndrome, and sleep apnea. The online resource also offers tools to improve the quality of sleep and tips on how to sleep through the night.

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A Primer to Natural Hair Care Practices in Black Patients

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A Primer to Natural Hair Care Practices in Black Patients

The phenomenon of natural (nonchemically treated) hair in individuals of African and Afro-Caribbean descent is sweeping across the United States. The ideals of beauty among this patient population have shifted from a relaxed, straightened, noncurly look to a more natural curly and/or kinky appearance. The discussion on natural hair versus straight hair has been brought to the mainstream by films such as Good Hair (2009). Furthermore, major hair care companies have increased their marketing of natural hair products to address the needs of these patients.

Popular traumatic hair care practices such as chemical relaxation and thermal straightening may lead to hair damage. Although the role of hair care practices in various scalp and hair disorders is ambiguous, traumatic practices commonly are performed by patients who are diagnosed with dermatologic conditions such as scarring alopecia.1 Alopecia is the fourth most common dermatologic diagnosis in black patients.2 Central centrifugal cicatricial alopecia is the most common form of scarring alopecia in this patient population3 and has been associated with traumatic hair care practices. As a result, many patients have switched to natural hairstyles that are less traumatic and damaging, often due to recommendations by dermatologists.

As the US population continues to become more diverse, dermatologists will be faced with many questions regarding hair disease and natural hair care in patients with skin of color. A basic understanding of hair care practices among black individuals is important to aid in the diagnosis and treatment of hair shaft and scalp disorders.4 When patients switch to natural hairstyles, are dermatologists prepared to answer questions that may arise during this process? This article will familiarize dermatologists with basic hair care terminology and general recommendations they can make to black patients who are transitioning to natural hairstyles.

Characteristics of Hair in the Skin of Color Population

A basic understanding of the structural properties of hair is fundamental. Human hair is categorized into 3 groups: Asian, Caucasian, and African.5 African hair typically is curly and, depending on the degree of the curl, is more susceptible to damage due to increased mechanical fragility. It also has a tendency to form knots and fissures along the hair shaft, which causes additional fracturing with simple manipulation. African hair grows more slowly than Asian and Caucasian hair, which can be discouraging to patients. It also has a lower water concentration and does not become coated with sebum as naturally as straightened hair.5 A simplified explanation of these characteristics can help patients understand how to proceed in managing and styling their natural hair.

As physicians, it is important for us to treat any underlying conditions related to the hair and scalp in black patients. Common dermatologic conditions such as seborrheic dermatitis, lupus, folliculitis, and alopecia can affect patients’ hair health. In addition to traumatic hair care practices, inflammation secondary to bacterial infections can contribute to the onset of central centrifugal cicatricial alopecia.6 Therefore, a detailed history and physical examination are needed to evaluate the etiology of associated symptoms. Treatment of these associated symptoms will aid in the overall care of patients.

Transitioning to Natural Hairstyles

Following evaluation and treatment of any hair or scalp conditions, how can dermatologists help black patients transition to natural hairstyles? The term transition refers to the process of switching from a chemically relaxed or thermally straightened hairstyle to a natural hairstyle. Dermatologists must understand the common terminology used to describe natural hair practices in this patient population.

There are several methods patients can use to transition from chemically treated hairstyles to natural hairstyles. Patients may consider the option of the “big chop,” or cutting off all chemically treated hair. This option typically leaves women with very short hairstyles down to the new growth, or hair that has grown since the last chemical relaxer. Other commonly used methods during the transition phase include protective styling (eg, braids, weaves, extensions) or simply growing out the chemically treated hair.

Protective styling methods such as braids, weaves, and extensions allow hair to be easily styled while the chemically treated hair grows out over time.7 Typically, protective styles may be worn for weeks to months, allowing hair growth without hair breakage and shedding. Hair weaving is a practice that incorporates artificial (synthetic) or human hair into one’s natural scalp hair.8 There are various techniques to extend hair including clip-in extensions, hair bonding and fusion with adhesives, sewing hair into braided hair, or the application of single strands of hair into a cap made of nylon mesh known as a lace front. Braided styles, weaves, and hair extensions cannot be washed as often as natural hair, but it is important to remind patients to replenish moisture as often as possible. Moisturizing or greasing the exposed scalp and proximal hair shafts can assist with water retention. It is imperative to inform patients that overuse of tight braids and glues for weaves and extensions may further damage the hair and scalp. Some of the natural ingredients commonly used in moisturizers include olive oil, jojoba oil, coconut oil, castor oil, and glycerin. These products can commonly cause pomade acne, which should be recognized and treated by dermatologists. Furthermore, long weaves and extensions can put excess weight on natural hair causing breakage. To prevent breakage, wearing an updo (a hairstyle in which the hair is pulled upward) can reduce the heavy strain on the hair.

 

 

Dermatologists should remind patients who wish to grow out chemically treated hair to frequently moisturize the hair and scalp as well as to avoid trauma to prevent hair breakage. As the natural hair grows out, the patient will experience varying hair textures from the natural curly hair to the previously processed straightened hair; as a result, the hair may tangle and become damaged. Manual detangling and detangling conditioners can help prevent damage. Patients should be advised to detangle the hair in sections first with the fingers, then with a wide-tooth comb working retrograde from the hair end to the roots.

Frequent hair trimming, ranging from every 4 to 6 weeks to every 2 to 4 months, should be recommended to patients who are experiencing breakage or wish to prevent damage. Trimming damaged hair can relieve excess weight on the natural hair and remove split ends, which promotes hair growth. Braiding and other lengthening techniques can prevent the hair from curling upon itself or tangling, causing less kinking and thereby decreasing the need for trimming.7 Wearing bonnets, using satin pillowcases, and wearing protective hairstyles while sleeping also can decrease hair breakage and hair loss. A commonly used hairstyle to protect the hair while sleeping is called “pineappling,” which is used to preserve and protect curls. This technique is described as gathering the hair in a high but loose ponytail at the top of the head. For patients with straightened hair, wrapping the hair underneath a bonnet or satin scarf while sleeping can prevent damage.

Managing Natural Hairstyles

An important factor in the management of natural hairstyles is the retention of hair moisture, as there is less water content in African hair compared to other hair types.5 Overuse of heat and harsh shampoos can strip moisture from the hair. Similar to patients with atopic dermatitis who should restore and maintain the skin barrier to prevent transepidermal water loss, it is important to remind patients with natural hairstyles to avoid using products and styling practices that may further deplete water content in the hair. Moisture is crucial to healthy hair.

A common culprit in shampoos that leads to hair dryness is sodium lauryl sulfate/sodium laureth sulfate, a detergent/surfactant used as a foaming agent. Sodium lauryl sulfate is a potent degreaser that binds dirt and excess product on the hair and scalp. It also dissolves oil in the hair, causing additional dryness and breakage.

Patients with natural hairstyles commonly use sulfate-free shampoos to prevent stripping the hair of its moisture and natural oils. Another method used to prevent hair dryness is co-washing, or washing the hair with a conditioner. Co-washing can effectively cleanse the hair while maintaining moisture. The use of cationic ingredients in conditioners aids in sealing moisture within the hair shaft. Hair consists of the negatively charged protein keratin, which binds to cationic surfactants in conditioners.9 The hydrophobic ends of the surfactant prevent the substance from being rinsed out and act to restore the hair barrier.

Silicone is another important ingredient in hair care products. In patients with natural hair, there are varying views on the use of products containing silicone. Silicones are added to products designed to coat the hair, adding shine, retaining moisture, and providing thermal protection. Silicones are used to provide “slip.” Slip is a term that is commonly used among patients with natural hair to describe how slippery a product is and how easily the product will help comb or detangle the hair. There are 2 basic types of silicones: water insoluble and water soluble. Water-insoluble silicones traditionally build up on the hair and require surfactant-containing shampoos to becompletely removed. Residue buildup on the hair weighs the hair down and causes damage. In contrast, water-soluble silicones do not build up and typically do not cause damage.

Silicones with the prefixes PEG- or PPG- typically are water soluble and will not build up on the hair. Dimethicone copolyol and lauryl methicone copolyol are other water-soluble silicones. In general, water-soluble silicones provide moisturizing properties without leaving residue. Other silicones such as amodimethicone and cyclomethicone are not water soluble but have properties that prevent buildup.

It is common practice for patients with natural hairstyles to avoid using water-insoluble silicones. As dermatologists, we can recommend silicone-free conditioners or conditioners containing water-soluble silicones to prevent hair dehydration and subsequent breakage. It may be advantageous to have patients try various products to determine which ones work best for their hair.

More Resources for Patients

Dermatologists have extensive knowledge of the pathophysiology of skin, hair, and nail diseases; however, despite our vast knowledge, we also need to recognize our limits. In addition to increasing your own knowledge of natural hair care practices to help your patients, it is important to recommend that your patients search for additional resources to aid in their transition to natural hairstyles. Natural hairstylists can be great resources for patients to help with hair management. In the current digital age, there also are thousands of blogs and social media forums dedicated to the topic of natural hair care. Advising patients to consult natural hair care resources can be beneficial, but as hair specialists, it also is important for us to dispel any false information that our patients may receive. As physicians, it is essential not only to manage patients who present to our offices with conditions resulting from damaging hair practices but also to help prevent such conditions from occurring. Although there may not be an overwhelming amount of evidence-based medical research to guide our decisions, we also can learn from the thousands of patients who have articulated their stories and experiences. Through observing and listening to our patients, we can incorporate this new knowledge in the management of our patients.

References

 

1. Shah SK, Alexis AF. Central centrifugal cicatricial alopecia: retrospective chart review. J Cutan Med Surg. 2010;14:212-222.

2. Alexis AF, Sergay AB, Taylor SC. Common dermatologic disorders in skin of color: a comparative practice survey. Cutis. 2007;80:387-394.

3. Uhlenhake EE, Mehregan DM. Prospective histologic examinations in patients who practice traumatic hairstyling [published online ahead of print March 3, 2013]. Int J Dermatol. 2013;52:1506-1512.

4. Roseborough IE, McMichael AJ. Hair care practices in African-American patients. Semin Cutan Med Surg. 2009;28:103-108.

5. Kelly AP, Taylor S, eds. Dermatology for Skin of Color. New York: McGraw-Hill; 2009.

6. Kyei A, Bergfeld WF, Piliang M, et al. Medical and environmental risk factors for the development of central centrifugal cicatricial alopecia: a population study [published online ahead of print April 11, 2011]. Arch Dermatol. 2011;147:909-914.


7. Walton N, Carter ET. Better Than Good Hair: The Curly Girl Guide to Healthy, Gorgeous Natural Hair! New York, NY: Amistad; 2013.

8. Quinn CR, Quinn TM, Kelly AP. Hair care practices in African American women. Cutis. 2003;72:280-282, 285-289.

9. Cruz CF, Fernandes MM, Gomes AC, et al. Keratins and lipids in ethnic hair [published online ahead of print January 24, 2013]. Int J Cosmet Sci. 2013;35:244-249.

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Rawn E. Bosley, MD; Steven Daveluy, MD

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Correspondence: Rawn E. Bosley, MD, 18100 Oakwood Blvd, Ste 300, Dearborn, MI 48124 ([email protected]).

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The authors report no conflict of interest.

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Rawn E. Bosley, MD; Steven Daveluy, MD

From the Department of Dermatology, Wayne State University, Dearborn, Michigan.

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The phenomenon of natural (nonchemically treated) hair in individuals of African and Afro-Caribbean descent is sweeping across the United States. The ideals of beauty among this patient population have shifted from a relaxed, straightened, noncurly look to a more natural curly and/or kinky appearance. The discussion on natural hair versus straight hair has been brought to the mainstream by films such as Good Hair (2009). Furthermore, major hair care companies have increased their marketing of natural hair products to address the needs of these patients.

Popular traumatic hair care practices such as chemical relaxation and thermal straightening may lead to hair damage. Although the role of hair care practices in various scalp and hair disorders is ambiguous, traumatic practices commonly are performed by patients who are diagnosed with dermatologic conditions such as scarring alopecia.1 Alopecia is the fourth most common dermatologic diagnosis in black patients.2 Central centrifugal cicatricial alopecia is the most common form of scarring alopecia in this patient population3 and has been associated with traumatic hair care practices. As a result, many patients have switched to natural hairstyles that are less traumatic and damaging, often due to recommendations by dermatologists.

As the US population continues to become more diverse, dermatologists will be faced with many questions regarding hair disease and natural hair care in patients with skin of color. A basic understanding of hair care practices among black individuals is important to aid in the diagnosis and treatment of hair shaft and scalp disorders.4 When patients switch to natural hairstyles, are dermatologists prepared to answer questions that may arise during this process? This article will familiarize dermatologists with basic hair care terminology and general recommendations they can make to black patients who are transitioning to natural hairstyles.

Characteristics of Hair in the Skin of Color Population

A basic understanding of the structural properties of hair is fundamental. Human hair is categorized into 3 groups: Asian, Caucasian, and African.5 African hair typically is curly and, depending on the degree of the curl, is more susceptible to damage due to increased mechanical fragility. It also has a tendency to form knots and fissures along the hair shaft, which causes additional fracturing with simple manipulation. African hair grows more slowly than Asian and Caucasian hair, which can be discouraging to patients. It also has a lower water concentration and does not become coated with sebum as naturally as straightened hair.5 A simplified explanation of these characteristics can help patients understand how to proceed in managing and styling their natural hair.

As physicians, it is important for us to treat any underlying conditions related to the hair and scalp in black patients. Common dermatologic conditions such as seborrheic dermatitis, lupus, folliculitis, and alopecia can affect patients’ hair health. In addition to traumatic hair care practices, inflammation secondary to bacterial infections can contribute to the onset of central centrifugal cicatricial alopecia.6 Therefore, a detailed history and physical examination are needed to evaluate the etiology of associated symptoms. Treatment of these associated symptoms will aid in the overall care of patients.

Transitioning to Natural Hairstyles

Following evaluation and treatment of any hair or scalp conditions, how can dermatologists help black patients transition to natural hairstyles? The term transition refers to the process of switching from a chemically relaxed or thermally straightened hairstyle to a natural hairstyle. Dermatologists must understand the common terminology used to describe natural hair practices in this patient population.

There are several methods patients can use to transition from chemically treated hairstyles to natural hairstyles. Patients may consider the option of the “big chop,” or cutting off all chemically treated hair. This option typically leaves women with very short hairstyles down to the new growth, or hair that has grown since the last chemical relaxer. Other commonly used methods during the transition phase include protective styling (eg, braids, weaves, extensions) or simply growing out the chemically treated hair.

Protective styling methods such as braids, weaves, and extensions allow hair to be easily styled while the chemically treated hair grows out over time.7 Typically, protective styles may be worn for weeks to months, allowing hair growth without hair breakage and shedding. Hair weaving is a practice that incorporates artificial (synthetic) or human hair into one’s natural scalp hair.8 There are various techniques to extend hair including clip-in extensions, hair bonding and fusion with adhesives, sewing hair into braided hair, or the application of single strands of hair into a cap made of nylon mesh known as a lace front. Braided styles, weaves, and hair extensions cannot be washed as often as natural hair, but it is important to remind patients to replenish moisture as often as possible. Moisturizing or greasing the exposed scalp and proximal hair shafts can assist with water retention. It is imperative to inform patients that overuse of tight braids and glues for weaves and extensions may further damage the hair and scalp. Some of the natural ingredients commonly used in moisturizers include olive oil, jojoba oil, coconut oil, castor oil, and glycerin. These products can commonly cause pomade acne, which should be recognized and treated by dermatologists. Furthermore, long weaves and extensions can put excess weight on natural hair causing breakage. To prevent breakage, wearing an updo (a hairstyle in which the hair is pulled upward) can reduce the heavy strain on the hair.

 

 

Dermatologists should remind patients who wish to grow out chemically treated hair to frequently moisturize the hair and scalp as well as to avoid trauma to prevent hair breakage. As the natural hair grows out, the patient will experience varying hair textures from the natural curly hair to the previously processed straightened hair; as a result, the hair may tangle and become damaged. Manual detangling and detangling conditioners can help prevent damage. Patients should be advised to detangle the hair in sections first with the fingers, then with a wide-tooth comb working retrograde from the hair end to the roots.

Frequent hair trimming, ranging from every 4 to 6 weeks to every 2 to 4 months, should be recommended to patients who are experiencing breakage or wish to prevent damage. Trimming damaged hair can relieve excess weight on the natural hair and remove split ends, which promotes hair growth. Braiding and other lengthening techniques can prevent the hair from curling upon itself or tangling, causing less kinking and thereby decreasing the need for trimming.7 Wearing bonnets, using satin pillowcases, and wearing protective hairstyles while sleeping also can decrease hair breakage and hair loss. A commonly used hairstyle to protect the hair while sleeping is called “pineappling,” which is used to preserve and protect curls. This technique is described as gathering the hair in a high but loose ponytail at the top of the head. For patients with straightened hair, wrapping the hair underneath a bonnet or satin scarf while sleeping can prevent damage.

Managing Natural Hairstyles

An important factor in the management of natural hairstyles is the retention of hair moisture, as there is less water content in African hair compared to other hair types.5 Overuse of heat and harsh shampoos can strip moisture from the hair. Similar to patients with atopic dermatitis who should restore and maintain the skin barrier to prevent transepidermal water loss, it is important to remind patients with natural hairstyles to avoid using products and styling practices that may further deplete water content in the hair. Moisture is crucial to healthy hair.

A common culprit in shampoos that leads to hair dryness is sodium lauryl sulfate/sodium laureth sulfate, a detergent/surfactant used as a foaming agent. Sodium lauryl sulfate is a potent degreaser that binds dirt and excess product on the hair and scalp. It also dissolves oil in the hair, causing additional dryness and breakage.

Patients with natural hairstyles commonly use sulfate-free shampoos to prevent stripping the hair of its moisture and natural oils. Another method used to prevent hair dryness is co-washing, or washing the hair with a conditioner. Co-washing can effectively cleanse the hair while maintaining moisture. The use of cationic ingredients in conditioners aids in sealing moisture within the hair shaft. Hair consists of the negatively charged protein keratin, which binds to cationic surfactants in conditioners.9 The hydrophobic ends of the surfactant prevent the substance from being rinsed out and act to restore the hair barrier.

Silicone is another important ingredient in hair care products. In patients with natural hair, there are varying views on the use of products containing silicone. Silicones are added to products designed to coat the hair, adding shine, retaining moisture, and providing thermal protection. Silicones are used to provide “slip.” Slip is a term that is commonly used among patients with natural hair to describe how slippery a product is and how easily the product will help comb or detangle the hair. There are 2 basic types of silicones: water insoluble and water soluble. Water-insoluble silicones traditionally build up on the hair and require surfactant-containing shampoos to becompletely removed. Residue buildup on the hair weighs the hair down and causes damage. In contrast, water-soluble silicones do not build up and typically do not cause damage.

Silicones with the prefixes PEG- or PPG- typically are water soluble and will not build up on the hair. Dimethicone copolyol and lauryl methicone copolyol are other water-soluble silicones. In general, water-soluble silicones provide moisturizing properties without leaving residue. Other silicones such as amodimethicone and cyclomethicone are not water soluble but have properties that prevent buildup.

It is common practice for patients with natural hairstyles to avoid using water-insoluble silicones. As dermatologists, we can recommend silicone-free conditioners or conditioners containing water-soluble silicones to prevent hair dehydration and subsequent breakage. It may be advantageous to have patients try various products to determine which ones work best for their hair.

More Resources for Patients

Dermatologists have extensive knowledge of the pathophysiology of skin, hair, and nail diseases; however, despite our vast knowledge, we also need to recognize our limits. In addition to increasing your own knowledge of natural hair care practices to help your patients, it is important to recommend that your patients search for additional resources to aid in their transition to natural hairstyles. Natural hairstylists can be great resources for patients to help with hair management. In the current digital age, there also are thousands of blogs and social media forums dedicated to the topic of natural hair care. Advising patients to consult natural hair care resources can be beneficial, but as hair specialists, it also is important for us to dispel any false information that our patients may receive. As physicians, it is essential not only to manage patients who present to our offices with conditions resulting from damaging hair practices but also to help prevent such conditions from occurring. Although there may not be an overwhelming amount of evidence-based medical research to guide our decisions, we also can learn from the thousands of patients who have articulated their stories and experiences. Through observing and listening to our patients, we can incorporate this new knowledge in the management of our patients.

The phenomenon of natural (nonchemically treated) hair in individuals of African and Afro-Caribbean descent is sweeping across the United States. The ideals of beauty among this patient population have shifted from a relaxed, straightened, noncurly look to a more natural curly and/or kinky appearance. The discussion on natural hair versus straight hair has been brought to the mainstream by films such as Good Hair (2009). Furthermore, major hair care companies have increased their marketing of natural hair products to address the needs of these patients.

Popular traumatic hair care practices such as chemical relaxation and thermal straightening may lead to hair damage. Although the role of hair care practices in various scalp and hair disorders is ambiguous, traumatic practices commonly are performed by patients who are diagnosed with dermatologic conditions such as scarring alopecia.1 Alopecia is the fourth most common dermatologic diagnosis in black patients.2 Central centrifugal cicatricial alopecia is the most common form of scarring alopecia in this patient population3 and has been associated with traumatic hair care practices. As a result, many patients have switched to natural hairstyles that are less traumatic and damaging, often due to recommendations by dermatologists.

As the US population continues to become more diverse, dermatologists will be faced with many questions regarding hair disease and natural hair care in patients with skin of color. A basic understanding of hair care practices among black individuals is important to aid in the diagnosis and treatment of hair shaft and scalp disorders.4 When patients switch to natural hairstyles, are dermatologists prepared to answer questions that may arise during this process? This article will familiarize dermatologists with basic hair care terminology and general recommendations they can make to black patients who are transitioning to natural hairstyles.

Characteristics of Hair in the Skin of Color Population

A basic understanding of the structural properties of hair is fundamental. Human hair is categorized into 3 groups: Asian, Caucasian, and African.5 African hair typically is curly and, depending on the degree of the curl, is more susceptible to damage due to increased mechanical fragility. It also has a tendency to form knots and fissures along the hair shaft, which causes additional fracturing with simple manipulation. African hair grows more slowly than Asian and Caucasian hair, which can be discouraging to patients. It also has a lower water concentration and does not become coated with sebum as naturally as straightened hair.5 A simplified explanation of these characteristics can help patients understand how to proceed in managing and styling their natural hair.

As physicians, it is important for us to treat any underlying conditions related to the hair and scalp in black patients. Common dermatologic conditions such as seborrheic dermatitis, lupus, folliculitis, and alopecia can affect patients’ hair health. In addition to traumatic hair care practices, inflammation secondary to bacterial infections can contribute to the onset of central centrifugal cicatricial alopecia.6 Therefore, a detailed history and physical examination are needed to evaluate the etiology of associated symptoms. Treatment of these associated symptoms will aid in the overall care of patients.

Transitioning to Natural Hairstyles

Following evaluation and treatment of any hair or scalp conditions, how can dermatologists help black patients transition to natural hairstyles? The term transition refers to the process of switching from a chemically relaxed or thermally straightened hairstyle to a natural hairstyle. Dermatologists must understand the common terminology used to describe natural hair practices in this patient population.

There are several methods patients can use to transition from chemically treated hairstyles to natural hairstyles. Patients may consider the option of the “big chop,” or cutting off all chemically treated hair. This option typically leaves women with very short hairstyles down to the new growth, or hair that has grown since the last chemical relaxer. Other commonly used methods during the transition phase include protective styling (eg, braids, weaves, extensions) or simply growing out the chemically treated hair.

Protective styling methods such as braids, weaves, and extensions allow hair to be easily styled while the chemically treated hair grows out over time.7 Typically, protective styles may be worn for weeks to months, allowing hair growth without hair breakage and shedding. Hair weaving is a practice that incorporates artificial (synthetic) or human hair into one’s natural scalp hair.8 There are various techniques to extend hair including clip-in extensions, hair bonding and fusion with adhesives, sewing hair into braided hair, or the application of single strands of hair into a cap made of nylon mesh known as a lace front. Braided styles, weaves, and hair extensions cannot be washed as often as natural hair, but it is important to remind patients to replenish moisture as often as possible. Moisturizing or greasing the exposed scalp and proximal hair shafts can assist with water retention. It is imperative to inform patients that overuse of tight braids and glues for weaves and extensions may further damage the hair and scalp. Some of the natural ingredients commonly used in moisturizers include olive oil, jojoba oil, coconut oil, castor oil, and glycerin. These products can commonly cause pomade acne, which should be recognized and treated by dermatologists. Furthermore, long weaves and extensions can put excess weight on natural hair causing breakage. To prevent breakage, wearing an updo (a hairstyle in which the hair is pulled upward) can reduce the heavy strain on the hair.

 

 

Dermatologists should remind patients who wish to grow out chemically treated hair to frequently moisturize the hair and scalp as well as to avoid trauma to prevent hair breakage. As the natural hair grows out, the patient will experience varying hair textures from the natural curly hair to the previously processed straightened hair; as a result, the hair may tangle and become damaged. Manual detangling and detangling conditioners can help prevent damage. Patients should be advised to detangle the hair in sections first with the fingers, then with a wide-tooth comb working retrograde from the hair end to the roots.

Frequent hair trimming, ranging from every 4 to 6 weeks to every 2 to 4 months, should be recommended to patients who are experiencing breakage or wish to prevent damage. Trimming damaged hair can relieve excess weight on the natural hair and remove split ends, which promotes hair growth. Braiding and other lengthening techniques can prevent the hair from curling upon itself or tangling, causing less kinking and thereby decreasing the need for trimming.7 Wearing bonnets, using satin pillowcases, and wearing protective hairstyles while sleeping also can decrease hair breakage and hair loss. A commonly used hairstyle to protect the hair while sleeping is called “pineappling,” which is used to preserve and protect curls. This technique is described as gathering the hair in a high but loose ponytail at the top of the head. For patients with straightened hair, wrapping the hair underneath a bonnet or satin scarf while sleeping can prevent damage.

Managing Natural Hairstyles

An important factor in the management of natural hairstyles is the retention of hair moisture, as there is less water content in African hair compared to other hair types.5 Overuse of heat and harsh shampoos can strip moisture from the hair. Similar to patients with atopic dermatitis who should restore and maintain the skin barrier to prevent transepidermal water loss, it is important to remind patients with natural hairstyles to avoid using products and styling practices that may further deplete water content in the hair. Moisture is crucial to healthy hair.

A common culprit in shampoos that leads to hair dryness is sodium lauryl sulfate/sodium laureth sulfate, a detergent/surfactant used as a foaming agent. Sodium lauryl sulfate is a potent degreaser that binds dirt and excess product on the hair and scalp. It also dissolves oil in the hair, causing additional dryness and breakage.

Patients with natural hairstyles commonly use sulfate-free shampoos to prevent stripping the hair of its moisture and natural oils. Another method used to prevent hair dryness is co-washing, or washing the hair with a conditioner. Co-washing can effectively cleanse the hair while maintaining moisture. The use of cationic ingredients in conditioners aids in sealing moisture within the hair shaft. Hair consists of the negatively charged protein keratin, which binds to cationic surfactants in conditioners.9 The hydrophobic ends of the surfactant prevent the substance from being rinsed out and act to restore the hair barrier.

Silicone is another important ingredient in hair care products. In patients with natural hair, there are varying views on the use of products containing silicone. Silicones are added to products designed to coat the hair, adding shine, retaining moisture, and providing thermal protection. Silicones are used to provide “slip.” Slip is a term that is commonly used among patients with natural hair to describe how slippery a product is and how easily the product will help comb or detangle the hair. There are 2 basic types of silicones: water insoluble and water soluble. Water-insoluble silicones traditionally build up on the hair and require surfactant-containing shampoos to becompletely removed. Residue buildup on the hair weighs the hair down and causes damage. In contrast, water-soluble silicones do not build up and typically do not cause damage.

Silicones with the prefixes PEG- or PPG- typically are water soluble and will not build up on the hair. Dimethicone copolyol and lauryl methicone copolyol are other water-soluble silicones. In general, water-soluble silicones provide moisturizing properties without leaving residue. Other silicones such as amodimethicone and cyclomethicone are not water soluble but have properties that prevent buildup.

It is common practice for patients with natural hairstyles to avoid using water-insoluble silicones. As dermatologists, we can recommend silicone-free conditioners or conditioners containing water-soluble silicones to prevent hair dehydration and subsequent breakage. It may be advantageous to have patients try various products to determine which ones work best for their hair.

More Resources for Patients

Dermatologists have extensive knowledge of the pathophysiology of skin, hair, and nail diseases; however, despite our vast knowledge, we also need to recognize our limits. In addition to increasing your own knowledge of natural hair care practices to help your patients, it is important to recommend that your patients search for additional resources to aid in their transition to natural hairstyles. Natural hairstylists can be great resources for patients to help with hair management. In the current digital age, there also are thousands of blogs and social media forums dedicated to the topic of natural hair care. Advising patients to consult natural hair care resources can be beneficial, but as hair specialists, it also is important for us to dispel any false information that our patients may receive. As physicians, it is essential not only to manage patients who present to our offices with conditions resulting from damaging hair practices but also to help prevent such conditions from occurring. Although there may not be an overwhelming amount of evidence-based medical research to guide our decisions, we also can learn from the thousands of patients who have articulated their stories and experiences. Through observing and listening to our patients, we can incorporate this new knowledge in the management of our patients.

References

 

1. Shah SK, Alexis AF. Central centrifugal cicatricial alopecia: retrospective chart review. J Cutan Med Surg. 2010;14:212-222.

2. Alexis AF, Sergay AB, Taylor SC. Common dermatologic disorders in skin of color: a comparative practice survey. Cutis. 2007;80:387-394.

3. Uhlenhake EE, Mehregan DM. Prospective histologic examinations in patients who practice traumatic hairstyling [published online ahead of print March 3, 2013]. Int J Dermatol. 2013;52:1506-1512.

4. Roseborough IE, McMichael AJ. Hair care practices in African-American patients. Semin Cutan Med Surg. 2009;28:103-108.

5. Kelly AP, Taylor S, eds. Dermatology for Skin of Color. New York: McGraw-Hill; 2009.

6. Kyei A, Bergfeld WF, Piliang M, et al. Medical and environmental risk factors for the development of central centrifugal cicatricial alopecia: a population study [published online ahead of print April 11, 2011]. Arch Dermatol. 2011;147:909-914.


7. Walton N, Carter ET. Better Than Good Hair: The Curly Girl Guide to Healthy, Gorgeous Natural Hair! New York, NY: Amistad; 2013.

8. Quinn CR, Quinn TM, Kelly AP. Hair care practices in African American women. Cutis. 2003;72:280-282, 285-289.

9. Cruz CF, Fernandes MM, Gomes AC, et al. Keratins and lipids in ethnic hair [published online ahead of print January 24, 2013]. Int J Cosmet Sci. 2013;35:244-249.

References

 

1. Shah SK, Alexis AF. Central centrifugal cicatricial alopecia: retrospective chart review. J Cutan Med Surg. 2010;14:212-222.

2. Alexis AF, Sergay AB, Taylor SC. Common dermatologic disorders in skin of color: a comparative practice survey. Cutis. 2007;80:387-394.

3. Uhlenhake EE, Mehregan DM. Prospective histologic examinations in patients who practice traumatic hairstyling [published online ahead of print March 3, 2013]. Int J Dermatol. 2013;52:1506-1512.

4. Roseborough IE, McMichael AJ. Hair care practices in African-American patients. Semin Cutan Med Surg. 2009;28:103-108.

5. Kelly AP, Taylor S, eds. Dermatology for Skin of Color. New York: McGraw-Hill; 2009.

6. Kyei A, Bergfeld WF, Piliang M, et al. Medical and environmental risk factors for the development of central centrifugal cicatricial alopecia: a population study [published online ahead of print April 11, 2011]. Arch Dermatol. 2011;147:909-914.


7. Walton N, Carter ET. Better Than Good Hair: The Curly Girl Guide to Healthy, Gorgeous Natural Hair! New York, NY: Amistad; 2013.

8. Quinn CR, Quinn TM, Kelly AP. Hair care practices in African American women. Cutis. 2003;72:280-282, 285-289.

9. Cruz CF, Fernandes MM, Gomes AC, et al. Keratins and lipids in ethnic hair [published online ahead of print January 24, 2013]. Int J Cosmet Sci. 2013;35:244-249.

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     Practice Points

 

  • Many scalp and hair diseases in patients of African and Afro-Caribbean descent result from traumatic hairstyling practices and poor management. Proper care of these patients requires an understanding of hair variances and styling techniques across ethnicities.
  • The use of protective hairstyles and adequate trimming can aid black patients in the transition to healthier natural hair.
  • The use of natural oils for scalp health and the avoidance of products containing chemicals that remove moisture from the hair are helpful in maintaining healthy natural hair.
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Studies confirm genetic links to obesity

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Studies confirm genetic links to obesity

Two new genetic studies provide insights into the biology of obesity, according to findings reported in the journal Nature.

In a study of waist-to-hip ratios in more than 244,000 individuals, Dr. Dmitry Shungin of Umea University in Sweden and his colleagues identified 49 genetic locations associated with fat deposits, 19 of which had a stronger effect on women. In a simultaneously published study of body mass index (BMI) in nearly 340,000 patients, investigators identified 97 genetic locations associated with BMI, reported Dr. Adam E. Locke and colleagues at the University of Michigan, Ann Arbor.

“This work is the first step toward finding individual genes that play key roles in body shape and size,” said a University of Michigan statement. “The proteins these genes help produce could become targets for future drug development.”

Read the full article by Dr. Shungin here and the full article by Dr. Locke here.

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Two new genetic studies provide insights into the biology of obesity, according to findings reported in the journal Nature.

In a study of waist-to-hip ratios in more than 244,000 individuals, Dr. Dmitry Shungin of Umea University in Sweden and his colleagues identified 49 genetic locations associated with fat deposits, 19 of which had a stronger effect on women. In a simultaneously published study of body mass index (BMI) in nearly 340,000 patients, investigators identified 97 genetic locations associated with BMI, reported Dr. Adam E. Locke and colleagues at the University of Michigan, Ann Arbor.

“This work is the first step toward finding individual genes that play key roles in body shape and size,” said a University of Michigan statement. “The proteins these genes help produce could become targets for future drug development.”

Read the full article by Dr. Shungin here and the full article by Dr. Locke here.

Two new genetic studies provide insights into the biology of obesity, according to findings reported in the journal Nature.

In a study of waist-to-hip ratios in more than 244,000 individuals, Dr. Dmitry Shungin of Umea University in Sweden and his colleagues identified 49 genetic locations associated with fat deposits, 19 of which had a stronger effect on women. In a simultaneously published study of body mass index (BMI) in nearly 340,000 patients, investigators identified 97 genetic locations associated with BMI, reported Dr. Adam E. Locke and colleagues at the University of Michigan, Ann Arbor.

“This work is the first step toward finding individual genes that play key roles in body shape and size,” said a University of Michigan statement. “The proteins these genes help produce could become targets for future drug development.”

Read the full article by Dr. Shungin here and the full article by Dr. Locke here.

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Lower bleeding, death risk with fondaparinux after NSTEMI

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Lower bleeding, death risk with fondaparinux after NSTEMI

Patients hospitalized with non–ST-segment myocardial infarction who received fondaparinux had significantly lower risk of suffering a major bleed or dying in the hospital, compared with those treated with low-molecular-weight heparin, investigators reported online Feb. 17 in JAMA.

The differences persisted 1 and 6 months after hospitalization, said Dr. Karolina Szummer at Karolinska University Hospital in Stockholm, and her associates. However, fondaparinux was not linked to lower rates of stroke or recurrent heart attack, compared with low-molecular-weight heparin (LMWH), the researchers said.

The European Society of Cardiology changed its NSTEMI guidelines in 2011, recommending fondaparinux as a first-choice anticoagulant for both patients treated either noninvasively or with PCI, spurring a “rapid switch” from LMWH to the indirect factor Xa inhibitor fondaparinux for treating non–ST-segment myocardial infarction (NSTEMI), said the investigators. (American Heart Association/American College of Cardiology guidelines, issued in 2012, do not favor fondaparinux over LMWH.) To study the effects of ESC’s change, they analyzed registry data from 40,616 patients hospitalized with NSTEMI between 2006 and 2010, of whom 36% of patients received fondaparinux and 64% received LMWH (JAMA 2015 Feb. 17;313:707-16).

Only 3.7% of the fondaparinux group suffered severe bleeding events or died in the hospital, compared with 5.5% of the heparin group (adjusted odds ratio, 0.67; 95% confidence interval, 0.58-0.78), the study found. Significant differences in bleeding and death rates persisted 30 days and 6 months after hospitalization, but rates of recurrent heart attack and stroke were similar between the treatment groups at all time points, the researchers said.

“This is not a randomized trial; therefore, residual confounding is very likely,” the investigators cautioned, adding that because the study used registry data, it probably underestimated bleeding events.

The work was funded by the Swedish Foundation for Strategic Research, the Swedish Heart and Lung Foundation, ALF Medicin, and the Swedish Medical Research Council. Dr. Szummer has received lecture fees from AstraZeneca. One coauthor reported financial relationships with GlaxoSmithKline, which markets fondaparinux. Other coauthors reported funding from numerous pharmaceutical companies.

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Patients hospitalized with non–ST-segment myocardial infarction who received fondaparinux had significantly lower risk of suffering a major bleed or dying in the hospital, compared with those treated with low-molecular-weight heparin, investigators reported online Feb. 17 in JAMA.

The differences persisted 1 and 6 months after hospitalization, said Dr. Karolina Szummer at Karolinska University Hospital in Stockholm, and her associates. However, fondaparinux was not linked to lower rates of stroke or recurrent heart attack, compared with low-molecular-weight heparin (LMWH), the researchers said.

The European Society of Cardiology changed its NSTEMI guidelines in 2011, recommending fondaparinux as a first-choice anticoagulant for both patients treated either noninvasively or with PCI, spurring a “rapid switch” from LMWH to the indirect factor Xa inhibitor fondaparinux for treating non–ST-segment myocardial infarction (NSTEMI), said the investigators. (American Heart Association/American College of Cardiology guidelines, issued in 2012, do not favor fondaparinux over LMWH.) To study the effects of ESC’s change, they analyzed registry data from 40,616 patients hospitalized with NSTEMI between 2006 and 2010, of whom 36% of patients received fondaparinux and 64% received LMWH (JAMA 2015 Feb. 17;313:707-16).

Only 3.7% of the fondaparinux group suffered severe bleeding events or died in the hospital, compared with 5.5% of the heparin group (adjusted odds ratio, 0.67; 95% confidence interval, 0.58-0.78), the study found. Significant differences in bleeding and death rates persisted 30 days and 6 months after hospitalization, but rates of recurrent heart attack and stroke were similar between the treatment groups at all time points, the researchers said.

“This is not a randomized trial; therefore, residual confounding is very likely,” the investigators cautioned, adding that because the study used registry data, it probably underestimated bleeding events.

The work was funded by the Swedish Foundation for Strategic Research, the Swedish Heart and Lung Foundation, ALF Medicin, and the Swedish Medical Research Council. Dr. Szummer has received lecture fees from AstraZeneca. One coauthor reported financial relationships with GlaxoSmithKline, which markets fondaparinux. Other coauthors reported funding from numerous pharmaceutical companies.

Patients hospitalized with non–ST-segment myocardial infarction who received fondaparinux had significantly lower risk of suffering a major bleed or dying in the hospital, compared with those treated with low-molecular-weight heparin, investigators reported online Feb. 17 in JAMA.

The differences persisted 1 and 6 months after hospitalization, said Dr. Karolina Szummer at Karolinska University Hospital in Stockholm, and her associates. However, fondaparinux was not linked to lower rates of stroke or recurrent heart attack, compared with low-molecular-weight heparin (LMWH), the researchers said.

The European Society of Cardiology changed its NSTEMI guidelines in 2011, recommending fondaparinux as a first-choice anticoagulant for both patients treated either noninvasively or with PCI, spurring a “rapid switch” from LMWH to the indirect factor Xa inhibitor fondaparinux for treating non–ST-segment myocardial infarction (NSTEMI), said the investigators. (American Heart Association/American College of Cardiology guidelines, issued in 2012, do not favor fondaparinux over LMWH.) To study the effects of ESC’s change, they analyzed registry data from 40,616 patients hospitalized with NSTEMI between 2006 and 2010, of whom 36% of patients received fondaparinux and 64% received LMWH (JAMA 2015 Feb. 17;313:707-16).

Only 3.7% of the fondaparinux group suffered severe bleeding events or died in the hospital, compared with 5.5% of the heparin group (adjusted odds ratio, 0.67; 95% confidence interval, 0.58-0.78), the study found. Significant differences in bleeding and death rates persisted 30 days and 6 months after hospitalization, but rates of recurrent heart attack and stroke were similar between the treatment groups at all time points, the researchers said.

“This is not a randomized trial; therefore, residual confounding is very likely,” the investigators cautioned, adding that because the study used registry data, it probably underestimated bleeding events.

The work was funded by the Swedish Foundation for Strategic Research, the Swedish Heart and Lung Foundation, ALF Medicin, and the Swedish Medical Research Council. Dr. Szummer has received lecture fees from AstraZeneca. One coauthor reported financial relationships with GlaxoSmithKline, which markets fondaparinux. Other coauthors reported funding from numerous pharmaceutical companies.

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Key clinical point: Fondaparinux might lower the risk of severe bleeding and death compared with LMWH in patients with NSTEMI.

Major finding: 3.7% of the fondaparinux group had severe bleeding or died in the hospital compared with 5.5% of the LMWH group (adjusted OR, 0.67).

Data source: Prospective multicenter observational cohort study of 40,616 patients with NSTEMI.

Disclosures: The study was funded by the Swedish Foundation for Strategic Research, the Swedish Heart and Lung Foundation, ALF Medicin, and the Swedish Medical Research Council. Dr. Szummer reported received lecture fees from AstraZeneca. One coauthor reported financial relationships with GlaxoSmithKline, which markets fondaparinux. Other coauthors reported funding from numerous pharmaceutical companies.

Day 90 CR not a good endpoint for auto-HSCT, doc says

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Patient receives chemotherapy

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SAN DIGEO—A phase 3 study comparing conditioning regimens in multiple myeloma patients undergoing autologous transplant has yielded counterintuitive results.

Patients who received busulfan plus melphalan (bu-mel) had a lower complete response (CR) rate at 90 days and a higher rate of grade 3-4 non-hematologic

toxicity, compared to patients who received melphalan (mel) alone.

However, patients in the bu-mel arm enjoyed significantly longer progression-free survival (PFS).

These results suggest the rate of CR at 90 days is not a good endpoint for trials of autologous hematopoietic stem cell transplant (auto-HSCT), said Muzaffar H.

Qazilbash, MD, of The University of Texas MD Anderson Cancer Center in Houston.

Dr Qazilbash presented these and other findings at the 2015 BMT Tandem Meetings as abstract 83.*

“High-dose melphalan at 200 mg/m2 is considered the standard of care for autologous stem cell transplantation for multiple myeloma,” he said. “However, most patients have disease recurrence or progression after an autologous transplant, even with the use of post-transplant maintenance.”

A recent retrospective study suggested that bu-mel might be associated with a longer PFS compared to mel alone. So Dr Qazilbash and his colleagues decided to

investigate that possibility in a randomized, phase 3 trial.

The trial included 92 patients with symptomatic multiple myeloma who had received at least 2 cycles of induction therapy. They were all within 12 months of the start of induction, and all had adequate cardiac, pulmonary, renal, and liver function.

Forty-nine patients received bu-mel—a 130 mg/m2 daily infusion of busulfan for 4 days, followed by 2 daily doses of melphalan at 70 mg/m2. All patients in this arm also received phenytoin for seizure prophylaxis. The 43 patients in the mel-only arm received a single dose of melphalan at 200 mg/m2.

Baseline characteristics were similar between the 2 arms. The patients’ median ages were 58 in the bu-mel arm and 59 in the mel arm. At the time of transplant, 18% of patients in the bu-mel arm were in CR or near CR, as were 28% of patients in the mel arm.

Adverse events

At 100 days post-transplant, the transplant-related mortality was 0% in both arms.

“There was a significantly higher rate of grade 3-4 non-hematologic adverse events in the busulfan-plus-melphalan arm—78% vs 47% [P=0.002],” Dr Qazilbash noted. “And these adverse events were mostly infectious events.”

Grade 3 infection occurred in 71% of bu-mel-treated patients and 39% of mel-treated patients (P=0.003). Grade 2 gastrointestinal toxicities occurred in 69% and 48%, respectively (P=0.05).

There were no significant differences between the arms with regard to other adverse events. And there were no second primary malignancies in either arm.

Response

At 90 days, the CR rate was 16% in the bu-mel arm and 35% in the mel arm (P=0.05). The rates of CR plus very good partial response were 63% and 81%, respectively (P=0.06).

“The trial was stopped early, based on a prescribed rule in the trial design, because of a significantly higher CR rate in the control arm,” Dr Qazilbash said.

Still, he noted that, at 180 days, the CR rate was 26% in the bu-mel arm and 37% in the mel arm (P=0.36). And the 180-day rates of CR plus very good

partial response were 69% and 86%, respectively (P=0.65).

Maintenance

A majority of patients received maintenance therapy post-transplant—84% of patients in the bu-mel arm and 88% in the mel arm.

The median interval between auto-HSCT and maintenance was 4.6 months and 4.5 months, respectively. And the median duration of maintenance was 16 months and 14.2 months, respectively.

 

 

Maintenance largely consisted of lenalidomide. Sixty-five percent of patients in the bu-mel arm and 63% in the mel arm received the drug. Fewer patients received bortezomib—8% and 16%, respectively—or lenalidomide plus ixazomib—10% and 9%, respectively.

Survival

At a median follow-up of 19.5 months, bu-mel was associated with significantly longer PFS than mel alone (P=0.047). And a multivariate analysis showed that bu-mel was an independent predictor of PFS.

Dr Qazilbash noted that there was no significant difference in overall survival between the bu-mel and mel arms (P=0.97), but the follow-up is less than 2 years, so this is expected.

“Bu-mel was associated with a significantly lower day 90 CR rate, a significantly higher rate of grade 3-4 non-hematologic toxicity, no significant difference in transplant-related mortality . . . , and a significantly longer PFS,” Dr Qazilbash summarized.

He therefore concluded that, based on this study, day 90 CR is not an adequate endpoint for auto-HSCT trials. This trial was amended to change the primary

endpoint from day 90 CR to PFS, and accrual has been increased to 205 patients.

Dr Qazilbash and others involved in this study received research funding from Otsuka, makers of busulfan. Dr Qazilbash also reported relationships (advisory

board, honoraria) with Celgene, Millennium, and Onyx.

*Information in the abstract differs from that presented at the meeting.

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Patient receives chemotherapy

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SAN DIGEO—A phase 3 study comparing conditioning regimens in multiple myeloma patients undergoing autologous transplant has yielded counterintuitive results.

Patients who received busulfan plus melphalan (bu-mel) had a lower complete response (CR) rate at 90 days and a higher rate of grade 3-4 non-hematologic

toxicity, compared to patients who received melphalan (mel) alone.

However, patients in the bu-mel arm enjoyed significantly longer progression-free survival (PFS).

These results suggest the rate of CR at 90 days is not a good endpoint for trials of autologous hematopoietic stem cell transplant (auto-HSCT), said Muzaffar H.

Qazilbash, MD, of The University of Texas MD Anderson Cancer Center in Houston.

Dr Qazilbash presented these and other findings at the 2015 BMT Tandem Meetings as abstract 83.*

“High-dose melphalan at 200 mg/m2 is considered the standard of care for autologous stem cell transplantation for multiple myeloma,” he said. “However, most patients have disease recurrence or progression after an autologous transplant, even with the use of post-transplant maintenance.”

A recent retrospective study suggested that bu-mel might be associated with a longer PFS compared to mel alone. So Dr Qazilbash and his colleagues decided to

investigate that possibility in a randomized, phase 3 trial.

The trial included 92 patients with symptomatic multiple myeloma who had received at least 2 cycles of induction therapy. They were all within 12 months of the start of induction, and all had adequate cardiac, pulmonary, renal, and liver function.

Forty-nine patients received bu-mel—a 130 mg/m2 daily infusion of busulfan for 4 days, followed by 2 daily doses of melphalan at 70 mg/m2. All patients in this arm also received phenytoin for seizure prophylaxis. The 43 patients in the mel-only arm received a single dose of melphalan at 200 mg/m2.

Baseline characteristics were similar between the 2 arms. The patients’ median ages were 58 in the bu-mel arm and 59 in the mel arm. At the time of transplant, 18% of patients in the bu-mel arm were in CR or near CR, as were 28% of patients in the mel arm.

Adverse events

At 100 days post-transplant, the transplant-related mortality was 0% in both arms.

“There was a significantly higher rate of grade 3-4 non-hematologic adverse events in the busulfan-plus-melphalan arm—78% vs 47% [P=0.002],” Dr Qazilbash noted. “And these adverse events were mostly infectious events.”

Grade 3 infection occurred in 71% of bu-mel-treated patients and 39% of mel-treated patients (P=0.003). Grade 2 gastrointestinal toxicities occurred in 69% and 48%, respectively (P=0.05).

There were no significant differences between the arms with regard to other adverse events. And there were no second primary malignancies in either arm.

Response

At 90 days, the CR rate was 16% in the bu-mel arm and 35% in the mel arm (P=0.05). The rates of CR plus very good partial response were 63% and 81%, respectively (P=0.06).

“The trial was stopped early, based on a prescribed rule in the trial design, because of a significantly higher CR rate in the control arm,” Dr Qazilbash said.

Still, he noted that, at 180 days, the CR rate was 26% in the bu-mel arm and 37% in the mel arm (P=0.36). And the 180-day rates of CR plus very good

partial response were 69% and 86%, respectively (P=0.65).

Maintenance

A majority of patients received maintenance therapy post-transplant—84% of patients in the bu-mel arm and 88% in the mel arm.

The median interval between auto-HSCT and maintenance was 4.6 months and 4.5 months, respectively. And the median duration of maintenance was 16 months and 14.2 months, respectively.

 

 

Maintenance largely consisted of lenalidomide. Sixty-five percent of patients in the bu-mel arm and 63% in the mel arm received the drug. Fewer patients received bortezomib—8% and 16%, respectively—or lenalidomide plus ixazomib—10% and 9%, respectively.

Survival

At a median follow-up of 19.5 months, bu-mel was associated with significantly longer PFS than mel alone (P=0.047). And a multivariate analysis showed that bu-mel was an independent predictor of PFS.

Dr Qazilbash noted that there was no significant difference in overall survival between the bu-mel and mel arms (P=0.97), but the follow-up is less than 2 years, so this is expected.

“Bu-mel was associated with a significantly lower day 90 CR rate, a significantly higher rate of grade 3-4 non-hematologic toxicity, no significant difference in transplant-related mortality . . . , and a significantly longer PFS,” Dr Qazilbash summarized.

He therefore concluded that, based on this study, day 90 CR is not an adequate endpoint for auto-HSCT trials. This trial was amended to change the primary

endpoint from day 90 CR to PFS, and accrual has been increased to 205 patients.

Dr Qazilbash and others involved in this study received research funding from Otsuka, makers of busulfan. Dr Qazilbash also reported relationships (advisory

board, honoraria) with Celgene, Millennium, and Onyx.

*Information in the abstract differs from that presented at the meeting.

Patient receives chemotherapy

Photo by Rhoda Baer

SAN DIGEO—A phase 3 study comparing conditioning regimens in multiple myeloma patients undergoing autologous transplant has yielded counterintuitive results.

Patients who received busulfan plus melphalan (bu-mel) had a lower complete response (CR) rate at 90 days and a higher rate of grade 3-4 non-hematologic

toxicity, compared to patients who received melphalan (mel) alone.

However, patients in the bu-mel arm enjoyed significantly longer progression-free survival (PFS).

These results suggest the rate of CR at 90 days is not a good endpoint for trials of autologous hematopoietic stem cell transplant (auto-HSCT), said Muzaffar H.

Qazilbash, MD, of The University of Texas MD Anderson Cancer Center in Houston.

Dr Qazilbash presented these and other findings at the 2015 BMT Tandem Meetings as abstract 83.*

“High-dose melphalan at 200 mg/m2 is considered the standard of care for autologous stem cell transplantation for multiple myeloma,” he said. “However, most patients have disease recurrence or progression after an autologous transplant, even with the use of post-transplant maintenance.”

A recent retrospective study suggested that bu-mel might be associated with a longer PFS compared to mel alone. So Dr Qazilbash and his colleagues decided to

investigate that possibility in a randomized, phase 3 trial.

The trial included 92 patients with symptomatic multiple myeloma who had received at least 2 cycles of induction therapy. They were all within 12 months of the start of induction, and all had adequate cardiac, pulmonary, renal, and liver function.

Forty-nine patients received bu-mel—a 130 mg/m2 daily infusion of busulfan for 4 days, followed by 2 daily doses of melphalan at 70 mg/m2. All patients in this arm also received phenytoin for seizure prophylaxis. The 43 patients in the mel-only arm received a single dose of melphalan at 200 mg/m2.

Baseline characteristics were similar between the 2 arms. The patients’ median ages were 58 in the bu-mel arm and 59 in the mel arm. At the time of transplant, 18% of patients in the bu-mel arm were in CR or near CR, as were 28% of patients in the mel arm.

Adverse events

At 100 days post-transplant, the transplant-related mortality was 0% in both arms.

“There was a significantly higher rate of grade 3-4 non-hematologic adverse events in the busulfan-plus-melphalan arm—78% vs 47% [P=0.002],” Dr Qazilbash noted. “And these adverse events were mostly infectious events.”

Grade 3 infection occurred in 71% of bu-mel-treated patients and 39% of mel-treated patients (P=0.003). Grade 2 gastrointestinal toxicities occurred in 69% and 48%, respectively (P=0.05).

There were no significant differences between the arms with regard to other adverse events. And there were no second primary malignancies in either arm.

Response

At 90 days, the CR rate was 16% in the bu-mel arm and 35% in the mel arm (P=0.05). The rates of CR plus very good partial response were 63% and 81%, respectively (P=0.06).

“The trial was stopped early, based on a prescribed rule in the trial design, because of a significantly higher CR rate in the control arm,” Dr Qazilbash said.

Still, he noted that, at 180 days, the CR rate was 26% in the bu-mel arm and 37% in the mel arm (P=0.36). And the 180-day rates of CR plus very good

partial response were 69% and 86%, respectively (P=0.65).

Maintenance

A majority of patients received maintenance therapy post-transplant—84% of patients in the bu-mel arm and 88% in the mel arm.

The median interval between auto-HSCT and maintenance was 4.6 months and 4.5 months, respectively. And the median duration of maintenance was 16 months and 14.2 months, respectively.

 

 

Maintenance largely consisted of lenalidomide. Sixty-five percent of patients in the bu-mel arm and 63% in the mel arm received the drug. Fewer patients received bortezomib—8% and 16%, respectively—or lenalidomide plus ixazomib—10% and 9%, respectively.

Survival

At a median follow-up of 19.5 months, bu-mel was associated with significantly longer PFS than mel alone (P=0.047). And a multivariate analysis showed that bu-mel was an independent predictor of PFS.

Dr Qazilbash noted that there was no significant difference in overall survival between the bu-mel and mel arms (P=0.97), but the follow-up is less than 2 years, so this is expected.

“Bu-mel was associated with a significantly lower day 90 CR rate, a significantly higher rate of grade 3-4 non-hematologic toxicity, no significant difference in transplant-related mortality . . . , and a significantly longer PFS,” Dr Qazilbash summarized.

He therefore concluded that, based on this study, day 90 CR is not an adequate endpoint for auto-HSCT trials. This trial was amended to change the primary

endpoint from day 90 CR to PFS, and accrual has been increased to 205 patients.

Dr Qazilbash and others involved in this study received research funding from Otsuka, makers of busulfan. Dr Qazilbash also reported relationships (advisory

board, honoraria) with Celgene, Millennium, and Onyx.

*Information in the abstract differs from that presented at the meeting.

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Antibodies can fight lymphoma

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Diffuse large B-cell lymphoma

Researchers say they have developed a method that simulates Epstein-Barr virus (EBV) infection, and the immune cells that are activated as a result can kill non-Hodgkin lymphoma cells efficiently.

The team made use of antibodies that exhibit a piece of viral protein. The antibodies contain binding sites that target molecules on the surface of lymphoma cells.

The researchers used genetic engineering methods to fuse protein pieces of EBV to the “rear” end of the antibody protein.

As exposure to EBV is common, many people already have memory T cells that can mount a rapid immune response upon a new encounter with this pathogen.

The antibodies attach to the cancerous B cells and are subsequently engulfed into the cell interior. There, the antibody protein is degraded, and the individual fragments are presented by molecules on the surface of the cancer cells.

As a result, the viral protein is also exhibited on the cell surface, thus making it look like an EBV infection to the immune system.

The researchers found that T cells effectively killed the “infected” lymphoma cells in vitro. In blood cells from individuals who had been infected with EBV in the past, the antigen-armed antibodies successfully activated memory T cells.

“This is a clear indication that our antigen-armed antibodies can also induce an immune response against lymphoma cells in a living organism,” said study author Henri-Jacques Delecluse, MD, PhD, of the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) in Heidelberg.

To activate the immune system in as many people as possible, Dr Delecluse and his colleagues also inserted larger pieces of EBV proteins into their antibodies.

Depending on a person’s genetic makeup, the cells could then cut out various smaller protein segments and present them on their surface.

“A problem with antibody-based cancer therapies is that the tumor cells make the surface molecule targeted by the antibody disappear from their surface,” Dr Delecluse said. “To prevent this situation, we used a mixture of antibodies that target 4 different B-cell surface molecules.”

For more details, see the researchers’ article in Blood.

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Diffuse large B-cell lymphoma

Researchers say they have developed a method that simulates Epstein-Barr virus (EBV) infection, and the immune cells that are activated as a result can kill non-Hodgkin lymphoma cells efficiently.

The team made use of antibodies that exhibit a piece of viral protein. The antibodies contain binding sites that target molecules on the surface of lymphoma cells.

The researchers used genetic engineering methods to fuse protein pieces of EBV to the “rear” end of the antibody protein.

As exposure to EBV is common, many people already have memory T cells that can mount a rapid immune response upon a new encounter with this pathogen.

The antibodies attach to the cancerous B cells and are subsequently engulfed into the cell interior. There, the antibody protein is degraded, and the individual fragments are presented by molecules on the surface of the cancer cells.

As a result, the viral protein is also exhibited on the cell surface, thus making it look like an EBV infection to the immune system.

The researchers found that T cells effectively killed the “infected” lymphoma cells in vitro. In blood cells from individuals who had been infected with EBV in the past, the antigen-armed antibodies successfully activated memory T cells.

“This is a clear indication that our antigen-armed antibodies can also induce an immune response against lymphoma cells in a living organism,” said study author Henri-Jacques Delecluse, MD, PhD, of the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) in Heidelberg.

To activate the immune system in as many people as possible, Dr Delecluse and his colleagues also inserted larger pieces of EBV proteins into their antibodies.

Depending on a person’s genetic makeup, the cells could then cut out various smaller protein segments and present them on their surface.

“A problem with antibody-based cancer therapies is that the tumor cells make the surface molecule targeted by the antibody disappear from their surface,” Dr Delecluse said. “To prevent this situation, we used a mixture of antibodies that target 4 different B-cell surface molecules.”

For more details, see the researchers’ article in Blood.

Diffuse large B-cell lymphoma

Researchers say they have developed a method that simulates Epstein-Barr virus (EBV) infection, and the immune cells that are activated as a result can kill non-Hodgkin lymphoma cells efficiently.

The team made use of antibodies that exhibit a piece of viral protein. The antibodies contain binding sites that target molecules on the surface of lymphoma cells.

The researchers used genetic engineering methods to fuse protein pieces of EBV to the “rear” end of the antibody protein.

As exposure to EBV is common, many people already have memory T cells that can mount a rapid immune response upon a new encounter with this pathogen.

The antibodies attach to the cancerous B cells and are subsequently engulfed into the cell interior. There, the antibody protein is degraded, and the individual fragments are presented by molecules on the surface of the cancer cells.

As a result, the viral protein is also exhibited on the cell surface, thus making it look like an EBV infection to the immune system.

The researchers found that T cells effectively killed the “infected” lymphoma cells in vitro. In blood cells from individuals who had been infected with EBV in the past, the antigen-armed antibodies successfully activated memory T cells.

“This is a clear indication that our antigen-armed antibodies can also induce an immune response against lymphoma cells in a living organism,” said study author Henri-Jacques Delecluse, MD, PhD, of the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) in Heidelberg.

To activate the immune system in as many people as possible, Dr Delecluse and his colleagues also inserted larger pieces of EBV proteins into their antibodies.

Depending on a person’s genetic makeup, the cells could then cut out various smaller protein segments and present them on their surface.

“A problem with antibody-based cancer therapies is that the tumor cells make the surface molecule targeted by the antibody disappear from their surface,” Dr Delecluse said. “To prevent this situation, we used a mixture of antibodies that target 4 different B-cell surface molecules.”

For more details, see the researchers’ article in Blood.

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Neural stem cells may fight chemo brain

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Lab rat

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Human neural stem cell treatments are showing promise for reversing learning and memory deficits after chemotherapy, according to an article in Cancer Research.

Investigators found that transplanting stem cells in rats a week after they completed a series of chemotherapy sessions restored a range of cognitive functions, as

measured a month later via behavioral testing.

In contrast, animals that did not receive stem cells showed significant learning and memory impairment.

“Our findings provide the first solid evidence that transplantation of human neural stem cells can be used to reverse chemotherapeutic-induced damage of healthy tissue in the brain,” said study author Charles Limoli, PhD, of the University of California, Irvine.

For this study, Dr Limoli and his colleagues transplanted adult neural stem cells into the brains of rats that had received cyclophosphamide.

The cells migrated throughout the hippocampus, where they survived and differentiated into multiple neural cell types. Additionally, these cells triggered the secretion of neurotrophic growth factors that helped rebuild wounded neurons.

The investigators also found that engrafted cells protected the host neurons, thereby preventing the loss or promoting the repair of damaged neurons and their finer structural elements, referred to as dendritic spines.

“This research suggests that stem cell therapies may one day be implemented in the clinic to provide relief to patients suffering from cognitive impairments incurred as a result of their cancer treatments,” Dr Limoli said. “While much work remains, a clinical trial analyzing the safety of such approaches may be possible within a few years.”

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Lab rat

Photo by Janet Stevens

Human neural stem cell treatments are showing promise for reversing learning and memory deficits after chemotherapy, according to an article in Cancer Research.

Investigators found that transplanting stem cells in rats a week after they completed a series of chemotherapy sessions restored a range of cognitive functions, as

measured a month later via behavioral testing.

In contrast, animals that did not receive stem cells showed significant learning and memory impairment.

“Our findings provide the first solid evidence that transplantation of human neural stem cells can be used to reverse chemotherapeutic-induced damage of healthy tissue in the brain,” said study author Charles Limoli, PhD, of the University of California, Irvine.

For this study, Dr Limoli and his colleagues transplanted adult neural stem cells into the brains of rats that had received cyclophosphamide.

The cells migrated throughout the hippocampus, where they survived and differentiated into multiple neural cell types. Additionally, these cells triggered the secretion of neurotrophic growth factors that helped rebuild wounded neurons.

The investigators also found that engrafted cells protected the host neurons, thereby preventing the loss or promoting the repair of damaged neurons and their finer structural elements, referred to as dendritic spines.

“This research suggests that stem cell therapies may one day be implemented in the clinic to provide relief to patients suffering from cognitive impairments incurred as a result of their cancer treatments,” Dr Limoli said. “While much work remains, a clinical trial analyzing the safety of such approaches may be possible within a few years.”

Lab rat

Photo by Janet Stevens

Human neural stem cell treatments are showing promise for reversing learning and memory deficits after chemotherapy, according to an article in Cancer Research.

Investigators found that transplanting stem cells in rats a week after they completed a series of chemotherapy sessions restored a range of cognitive functions, as

measured a month later via behavioral testing.

In contrast, animals that did not receive stem cells showed significant learning and memory impairment.

“Our findings provide the first solid evidence that transplantation of human neural stem cells can be used to reverse chemotherapeutic-induced damage of healthy tissue in the brain,” said study author Charles Limoli, PhD, of the University of California, Irvine.

For this study, Dr Limoli and his colleagues transplanted adult neural stem cells into the brains of rats that had received cyclophosphamide.

The cells migrated throughout the hippocampus, where they survived and differentiated into multiple neural cell types. Additionally, these cells triggered the secretion of neurotrophic growth factors that helped rebuild wounded neurons.

The investigators also found that engrafted cells protected the host neurons, thereby preventing the loss or promoting the repair of damaged neurons and their finer structural elements, referred to as dendritic spines.

“This research suggests that stem cell therapies may one day be implemented in the clinic to provide relief to patients suffering from cognitive impairments incurred as a result of their cancer treatments,” Dr Limoli said. “While much work remains, a clinical trial analyzing the safety of such approaches may be possible within a few years.”

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Physical activity lowers risk of VTE, other vascular events

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Fitness class

Middle-aged women who are physically active a few times a week have a lower risk of vascular events than inactive women, according to research published in Circulation.

Women who engaged in physical activity 2 to 3 times per week were about 20% less likely to develop heart disease, stroke, or venous thromboembolism (VTE) than women who reported little or no activity.

However, more frequent activity was associated with an increased risk of vascular events.

“Inactive middle-aged women should try to do some activity regularly,” said study author Miranda Armstrong, PhD, of the University of Oxford in the UK.

“However, to prevent heart disease, stroke, and blood clots, women don’t need to do very frequent activity, as this seems to provide little additional benefit above that of moderately frequent activity.”

Dr Armstrong and her colleagues analyzed 1.1 million women in the UK with no history of cancer, heart disease, stroke, VTE, or diabetes who joined the Million Women Study from 1996 to 2001. Their average age at study entry was 56.

The women reported their level of physical activity—hours spent walking, cycling, gardening, and doing housework—at the beginning of the study and 3 years later. The researchers then examined hospital admissions and deaths in relation to participants’ responses.

During an average follow-up of 9 years, 49,113 women had a first coronary heart disease event, 17,822 had a first cerebrovascular event, and 14,550 had a first VTE.

Women who reportedly engaged in moderate physical activity had a significantly lower risk of each event compared to inactive women (P<0.001 for all).

On the other hand, the risk of cerebrovascular disease and VTE were significantly higher in women who engaged in physical activity daily, when compared to women who reported physical activity 2 to 3 times a week (P<0.001).

For coronary heart disease, women who reported daily activity had a significantly higher risk only if that activity was strenuous (P=0.002)—not for any physical activity (P=0.8).

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Fitness class

Middle-aged women who are physically active a few times a week have a lower risk of vascular events than inactive women, according to research published in Circulation.

Women who engaged in physical activity 2 to 3 times per week were about 20% less likely to develop heart disease, stroke, or venous thromboembolism (VTE) than women who reported little or no activity.

However, more frequent activity was associated with an increased risk of vascular events.

“Inactive middle-aged women should try to do some activity regularly,” said study author Miranda Armstrong, PhD, of the University of Oxford in the UK.

“However, to prevent heart disease, stroke, and blood clots, women don’t need to do very frequent activity, as this seems to provide little additional benefit above that of moderately frequent activity.”

Dr Armstrong and her colleagues analyzed 1.1 million women in the UK with no history of cancer, heart disease, stroke, VTE, or diabetes who joined the Million Women Study from 1996 to 2001. Their average age at study entry was 56.

The women reported their level of physical activity—hours spent walking, cycling, gardening, and doing housework—at the beginning of the study and 3 years later. The researchers then examined hospital admissions and deaths in relation to participants’ responses.

During an average follow-up of 9 years, 49,113 women had a first coronary heart disease event, 17,822 had a first cerebrovascular event, and 14,550 had a first VTE.

Women who reportedly engaged in moderate physical activity had a significantly lower risk of each event compared to inactive women (P<0.001 for all).

On the other hand, the risk of cerebrovascular disease and VTE were significantly higher in women who engaged in physical activity daily, when compared to women who reported physical activity 2 to 3 times a week (P<0.001).

For coronary heart disease, women who reported daily activity had a significantly higher risk only if that activity was strenuous (P=0.002)—not for any physical activity (P=0.8).

Fitness class

Middle-aged women who are physically active a few times a week have a lower risk of vascular events than inactive women, according to research published in Circulation.

Women who engaged in physical activity 2 to 3 times per week were about 20% less likely to develop heart disease, stroke, or venous thromboembolism (VTE) than women who reported little or no activity.

However, more frequent activity was associated with an increased risk of vascular events.

“Inactive middle-aged women should try to do some activity regularly,” said study author Miranda Armstrong, PhD, of the University of Oxford in the UK.

“However, to prevent heart disease, stroke, and blood clots, women don’t need to do very frequent activity, as this seems to provide little additional benefit above that of moderately frequent activity.”

Dr Armstrong and her colleagues analyzed 1.1 million women in the UK with no history of cancer, heart disease, stroke, VTE, or diabetes who joined the Million Women Study from 1996 to 2001. Their average age at study entry was 56.

The women reported their level of physical activity—hours spent walking, cycling, gardening, and doing housework—at the beginning of the study and 3 years later. The researchers then examined hospital admissions and deaths in relation to participants’ responses.

During an average follow-up of 9 years, 49,113 women had a first coronary heart disease event, 17,822 had a first cerebrovascular event, and 14,550 had a first VTE.

Women who reportedly engaged in moderate physical activity had a significantly lower risk of each event compared to inactive women (P<0.001 for all).

On the other hand, the risk of cerebrovascular disease and VTE were significantly higher in women who engaged in physical activity daily, when compared to women who reported physical activity 2 to 3 times a week (P<0.001).

For coronary heart disease, women who reported daily activity had a significantly higher risk only if that activity was strenuous (P=0.002)—not for any physical activity (P=0.8).

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Age is greatest risk factor for stroke in AF

‘Data are important’ but not definitive
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Age is the most important risk factor for stroke in patients with atrial fibrillation, and not all stroke risk factors in the CHA2DS2-VASc score carry equal risk, a retrospective, population-based study showed.

Analysis of data from 186,570 Taiwanese patients with atrial fibrillation (AF) found that the risk of ischemic stroke ranged from 1.96% per year for men with vascular diseases to 3.5% per year for those aged 65-74 years. In women, the risk increased from 1.91% per year for women with hypertension to 3.34% per year for those aged 65-74 years, wrote Dr. Tze-Fan Chao of Taipei (Taiwan) Veterans General Hospital and coauthors (J. Am. Coll. Cardiol. 2015;65:635-42 [doi: 10.1016/j.jacc.2014.11.046]).

The study results showed that male AF patients with a CHA2DS2-VASc score of 1 had an annual stroke rate of 2.75%; women with a CHA2DS2-VASc score of 2 had a greater than two-fold increase in stroke risk, compared with women with a score of 1.

“Our study is the first population-based investigation analyzing the risk of ischemic stroke in nonanticoagulated AF male patients with a CHA2DS2-VASc score of 1 and female patients with a CHA2DS2-VASc score of 2, according to the specific covariates composing the CHA2DS2-VASc score,” Dr. Chao wrote.

The investigators cited several limitations. One is that they were unable to determine whether the cause of ischemic stroke was tied to AF-related thromboembolism or atherosclerosis and thrombosis of the cerebral artery. This limitation, however, was common among previous randomized trials, they noted.

The study was partly supported by grants from the National Science Council and Taipei (Taiwan) Veterans General Hospital. One author declared consultancies and speakers fees from private industry. No other conflicts of interest were declared.

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The study by Dr. Chao and his colleagues provides important new information supporting the use of anticoagulation for all atrial fibrillation with at least one additional stroke risk factor, equating to a CHA2DS2-VASc score of 0 or 1 for women, according to Dr. Hugh Calkins. But the study is both imperfect and not definitive.

“Considering the safety and efficacy of antithrombotic therapy, it seems clear that we should think long and hard before recommending that patients with a CHA2DS2-VASc score of 1 not receive anticoagulant therapy,” he wrote. He also said, however, that the retrospective data do not warrant updating the American College of Cardiology/American Heart Association/Heart Rhythm Society guidelines.

Dr. Calkins is with the department of cardiology at Johns Hopkins Hospital, Baltimore. These comments are taken from his accompanying editorial (J. Am. Coll. Cardiol. 2015;65:663-64 [http://dx.doi.org/10.1016/j.jacc.2014.12.008]. He reported consultancies for Boehringer Ingelheim, AtriCure, and Daiichi Sankyo.

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The study by Dr. Chao and his colleagues provides important new information supporting the use of anticoagulation for all atrial fibrillation with at least one additional stroke risk factor, equating to a CHA2DS2-VASc score of 0 or 1 for women, according to Dr. Hugh Calkins. But the study is both imperfect and not definitive.

“Considering the safety and efficacy of antithrombotic therapy, it seems clear that we should think long and hard before recommending that patients with a CHA2DS2-VASc score of 1 not receive anticoagulant therapy,” he wrote. He also said, however, that the retrospective data do not warrant updating the American College of Cardiology/American Heart Association/Heart Rhythm Society guidelines.

Dr. Calkins is with the department of cardiology at Johns Hopkins Hospital, Baltimore. These comments are taken from his accompanying editorial (J. Am. Coll. Cardiol. 2015;65:663-64 [http://dx.doi.org/10.1016/j.jacc.2014.12.008]. He reported consultancies for Boehringer Ingelheim, AtriCure, and Daiichi Sankyo.

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The study by Dr. Chao and his colleagues provides important new information supporting the use of anticoagulation for all atrial fibrillation with at least one additional stroke risk factor, equating to a CHA2DS2-VASc score of 0 or 1 for women, according to Dr. Hugh Calkins. But the study is both imperfect and not definitive.

“Considering the safety and efficacy of antithrombotic therapy, it seems clear that we should think long and hard before recommending that patients with a CHA2DS2-VASc score of 1 not receive anticoagulant therapy,” he wrote. He also said, however, that the retrospective data do not warrant updating the American College of Cardiology/American Heart Association/Heart Rhythm Society guidelines.

Dr. Calkins is with the department of cardiology at Johns Hopkins Hospital, Baltimore. These comments are taken from his accompanying editorial (J. Am. Coll. Cardiol. 2015;65:663-64 [http://dx.doi.org/10.1016/j.jacc.2014.12.008]. He reported consultancies for Boehringer Ingelheim, AtriCure, and Daiichi Sankyo.

Title
‘Data are important’ but not definitive
‘Data are important’ but not definitive

Age is the most important risk factor for stroke in patients with atrial fibrillation, and not all stroke risk factors in the CHA2DS2-VASc score carry equal risk, a retrospective, population-based study showed.

Analysis of data from 186,570 Taiwanese patients with atrial fibrillation (AF) found that the risk of ischemic stroke ranged from 1.96% per year for men with vascular diseases to 3.5% per year for those aged 65-74 years. In women, the risk increased from 1.91% per year for women with hypertension to 3.34% per year for those aged 65-74 years, wrote Dr. Tze-Fan Chao of Taipei (Taiwan) Veterans General Hospital and coauthors (J. Am. Coll. Cardiol. 2015;65:635-42 [doi: 10.1016/j.jacc.2014.11.046]).

The study results showed that male AF patients with a CHA2DS2-VASc score of 1 had an annual stroke rate of 2.75%; women with a CHA2DS2-VASc score of 2 had a greater than two-fold increase in stroke risk, compared with women with a score of 1.

“Our study is the first population-based investigation analyzing the risk of ischemic stroke in nonanticoagulated AF male patients with a CHA2DS2-VASc score of 1 and female patients with a CHA2DS2-VASc score of 2, according to the specific covariates composing the CHA2DS2-VASc score,” Dr. Chao wrote.

The investigators cited several limitations. One is that they were unable to determine whether the cause of ischemic stroke was tied to AF-related thromboembolism or atherosclerosis and thrombosis of the cerebral artery. This limitation, however, was common among previous randomized trials, they noted.

The study was partly supported by grants from the National Science Council and Taipei (Taiwan) Veterans General Hospital. One author declared consultancies and speakers fees from private industry. No other conflicts of interest were declared.

Age is the most important risk factor for stroke in patients with atrial fibrillation, and not all stroke risk factors in the CHA2DS2-VASc score carry equal risk, a retrospective, population-based study showed.

Analysis of data from 186,570 Taiwanese patients with atrial fibrillation (AF) found that the risk of ischemic stroke ranged from 1.96% per year for men with vascular diseases to 3.5% per year for those aged 65-74 years. In women, the risk increased from 1.91% per year for women with hypertension to 3.34% per year for those aged 65-74 years, wrote Dr. Tze-Fan Chao of Taipei (Taiwan) Veterans General Hospital and coauthors (J. Am. Coll. Cardiol. 2015;65:635-42 [doi: 10.1016/j.jacc.2014.11.046]).

The study results showed that male AF patients with a CHA2DS2-VASc score of 1 had an annual stroke rate of 2.75%; women with a CHA2DS2-VASc score of 2 had a greater than two-fold increase in stroke risk, compared with women with a score of 1.

“Our study is the first population-based investigation analyzing the risk of ischemic stroke in nonanticoagulated AF male patients with a CHA2DS2-VASc score of 1 and female patients with a CHA2DS2-VASc score of 2, according to the specific covariates composing the CHA2DS2-VASc score,” Dr. Chao wrote.

The investigators cited several limitations. One is that they were unable to determine whether the cause of ischemic stroke was tied to AF-related thromboembolism or atherosclerosis and thrombosis of the cerebral artery. This limitation, however, was common among previous randomized trials, they noted.

The study was partly supported by grants from the National Science Council and Taipei (Taiwan) Veterans General Hospital. One author declared consultancies and speakers fees from private industry. No other conflicts of interest were declared.

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FROM THE JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY

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Inside the Article

Vitals

Key clinical point: Clinicians should consider oral anticoagulation for AF patients who have one additional risk factor, “given their high risk of ischemic stroke.”

Major finding: The risk of ischemic stroke in men with atrial fibrillation is 3.5% per year in those aged 65-74 years.

Data source: Retrospective population-based study in 186,570 patients with atrial fibrillation.

Disclosures: The study was partly supported by grants from the National Science Council and Taipei (Taiwan) Veterans General Hospital. One author declared consultancies and speakers fees from private industry. No other conflicts of interest were declared.

U-shaped relationship between exercise intensity and cardiovascular health

Food for thought?
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Strenuous daily exercise actually increased the risk of coronary heart disease, venous thromboembolism, and cerebrovascular disease, compared with moderate physical activity, according to new data from the Million Women Study.

At baseline, the 1.1 million women who participated in the study were 55.9 years old on average, with a mean body mass index of 26 kg/m2. Over the next 9 years, those reporting moderate activity had significantly lower risks of all three conditions than did inactive women, according to a study published online Feb. 16 in Circulation [doi:10.1161/CIRCULATIONAHA.114.010296].

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However, women who undertook daily strenuous activity had a 15% increase in their risk of coronary heart disease, a 25% increase in cerebrovascular disease risk, and a 29% increase in venous thromboembolism (VTE) risk, compared with those who exercised strenuously two to three times a week, judging from the findings of Cox regression models that controlled for BMI, smoking, and alcohol consumption.

“Among active women, there was little evidence of progressive reductions in risk with more frequent activity, and even an increase in risk for CHD, cerebrovascular disease, and VTE in the most active group,” wrote Dr. Miranda E. G. Armstrong of the University of Oxford, England, and colleagues.

The study was supported by the UK Medical Research Council, Cancer Research UK, and the BHF Centre of Research Excellence. There were no other conflicts of interest declared.

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The Million Women Study has many strengths. By its size and length of follow up, it has been able to overcome the notorious methodologic challenges of how to accurately measure not only the frequency of physical activity but also its type, intensity, and duration as well as variations in activity level over time. And, to its credit, the Million Women Study is one of the few large cohort studies to measure housework and to include it as a form of moderate physical activity.

Its findings may be subject to confounding, nonetheless. Such as data showing that the prevalence of current smokers was 25% in the group that exercised every day and in the group that reported no strenuous exercise – considerably higher than the prevalence estimates for women who did strenuous exercise one to six times per week. Even though the results were adjusted for smoking (and other risk factors), the authors acknowledged that residual confounding may have persisted and, thus, may have explained some of the association between physical activity and vascular risk in the most active women.

Further perplexing is the fact that even its sedentary participants were far from inactive. Current guidelines for the level of exercise needed to maintain cardiovascular health call for at least 30 minutes of moderate-intensity aerobic activity at least 5 days per week in bouts of 10 minutes of more moderate or 25 minutes of vigorous aerobic activity at least 3 days per week, or a combination thereof. In total, this amount of activity would equate to approximately 8-12 MET-hrs per week. Thus, it is puzzling that the women in the Million Women Study, even women who reported doing no physical activity at study baseline, still accrued over 15 excess MET-hrs per week (after excluding housework), predominantly through walking and gardening.

Dr. Rachel Huxley, D.Phil., is from the University of Queensland in Herston, Australia. She did not disclose whether she had any financial conflicts of interest. Her remarks were distilled from an editorial (Circulation 2015 Feb. 16 [doi: 10.1161/CIRCULATIONAHA.115.014721] accompanying the research report.

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The Million Women Study has many strengths. By its size and length of follow up, it has been able to overcome the notorious methodologic challenges of how to accurately measure not only the frequency of physical activity but also its type, intensity, and duration as well as variations in activity level over time. And, to its credit, the Million Women Study is one of the few large cohort studies to measure housework and to include it as a form of moderate physical activity.

Its findings may be subject to confounding, nonetheless. Such as data showing that the prevalence of current smokers was 25% in the group that exercised every day and in the group that reported no strenuous exercise – considerably higher than the prevalence estimates for women who did strenuous exercise one to six times per week. Even though the results were adjusted for smoking (and other risk factors), the authors acknowledged that residual confounding may have persisted and, thus, may have explained some of the association between physical activity and vascular risk in the most active women.

Further perplexing is the fact that even its sedentary participants were far from inactive. Current guidelines for the level of exercise needed to maintain cardiovascular health call for at least 30 minutes of moderate-intensity aerobic activity at least 5 days per week in bouts of 10 minutes of more moderate or 25 minutes of vigorous aerobic activity at least 3 days per week, or a combination thereof. In total, this amount of activity would equate to approximately 8-12 MET-hrs per week. Thus, it is puzzling that the women in the Million Women Study, even women who reported doing no physical activity at study baseline, still accrued over 15 excess MET-hrs per week (after excluding housework), predominantly through walking and gardening.

Dr. Rachel Huxley, D.Phil., is from the University of Queensland in Herston, Australia. She did not disclose whether she had any financial conflicts of interest. Her remarks were distilled from an editorial (Circulation 2015 Feb. 16 [doi: 10.1161/CIRCULATIONAHA.115.014721] accompanying the research report.

Body

The Million Women Study has many strengths. By its size and length of follow up, it has been able to overcome the notorious methodologic challenges of how to accurately measure not only the frequency of physical activity but also its type, intensity, and duration as well as variations in activity level over time. And, to its credit, the Million Women Study is one of the few large cohort studies to measure housework and to include it as a form of moderate physical activity.

Its findings may be subject to confounding, nonetheless. Such as data showing that the prevalence of current smokers was 25% in the group that exercised every day and in the group that reported no strenuous exercise – considerably higher than the prevalence estimates for women who did strenuous exercise one to six times per week. Even though the results were adjusted for smoking (and other risk factors), the authors acknowledged that residual confounding may have persisted and, thus, may have explained some of the association between physical activity and vascular risk in the most active women.

Further perplexing is the fact that even its sedentary participants were far from inactive. Current guidelines for the level of exercise needed to maintain cardiovascular health call for at least 30 minutes of moderate-intensity aerobic activity at least 5 days per week in bouts of 10 minutes of more moderate or 25 minutes of vigorous aerobic activity at least 3 days per week, or a combination thereof. In total, this amount of activity would equate to approximately 8-12 MET-hrs per week. Thus, it is puzzling that the women in the Million Women Study, even women who reported doing no physical activity at study baseline, still accrued over 15 excess MET-hrs per week (after excluding housework), predominantly through walking and gardening.

Dr. Rachel Huxley, D.Phil., is from the University of Queensland in Herston, Australia. She did not disclose whether she had any financial conflicts of interest. Her remarks were distilled from an editorial (Circulation 2015 Feb. 16 [doi: 10.1161/CIRCULATIONAHA.115.014721] accompanying the research report.

Title
Food for thought?
Food for thought?

Strenuous daily exercise actually increased the risk of coronary heart disease, venous thromboembolism, and cerebrovascular disease, compared with moderate physical activity, according to new data from the Million Women Study.

At baseline, the 1.1 million women who participated in the study were 55.9 years old on average, with a mean body mass index of 26 kg/m2. Over the next 9 years, those reporting moderate activity had significantly lower risks of all three conditions than did inactive women, according to a study published online Feb. 16 in Circulation [doi:10.1161/CIRCULATIONAHA.114.010296].

©Monkey Business Images/thinkstockphotos.com

However, women who undertook daily strenuous activity had a 15% increase in their risk of coronary heart disease, a 25% increase in cerebrovascular disease risk, and a 29% increase in venous thromboembolism (VTE) risk, compared with those who exercised strenuously two to three times a week, judging from the findings of Cox regression models that controlled for BMI, smoking, and alcohol consumption.

“Among active women, there was little evidence of progressive reductions in risk with more frequent activity, and even an increase in risk for CHD, cerebrovascular disease, and VTE in the most active group,” wrote Dr. Miranda E. G. Armstrong of the University of Oxford, England, and colleagues.

The study was supported by the UK Medical Research Council, Cancer Research UK, and the BHF Centre of Research Excellence. There were no other conflicts of interest declared.

Strenuous daily exercise actually increased the risk of coronary heart disease, venous thromboembolism, and cerebrovascular disease, compared with moderate physical activity, according to new data from the Million Women Study.

At baseline, the 1.1 million women who participated in the study were 55.9 years old on average, with a mean body mass index of 26 kg/m2. Over the next 9 years, those reporting moderate activity had significantly lower risks of all three conditions than did inactive women, according to a study published online Feb. 16 in Circulation [doi:10.1161/CIRCULATIONAHA.114.010296].

©Monkey Business Images/thinkstockphotos.com

However, women who undertook daily strenuous activity had a 15% increase in their risk of coronary heart disease, a 25% increase in cerebrovascular disease risk, and a 29% increase in venous thromboembolism (VTE) risk, compared with those who exercised strenuously two to three times a week, judging from the findings of Cox regression models that controlled for BMI, smoking, and alcohol consumption.

“Among active women, there was little evidence of progressive reductions in risk with more frequent activity, and even an increase in risk for CHD, cerebrovascular disease, and VTE in the most active group,” wrote Dr. Miranda E. G. Armstrong of the University of Oxford, England, and colleagues.

The study was supported by the UK Medical Research Council, Cancer Research UK, and the BHF Centre of Research Excellence. There were no other conflicts of interest declared.

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U-shaped relationship between exercise intensity and cardiovascular health
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U-shaped relationship between exercise intensity and cardiovascular health
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Key clinical point: Higher-intensity exercise is not associated with proportionally greater reductions in the risk of coronary heart disease.

Major finding: Women who undertook daily strenuous activity had a 15% increase in their risk of coronary heart disease, a 25% increase in cerebrovascular disease risk, and 29% increase in venous thromboembolism risk, compared with those who exercised strenuously two to three times a week.

Data source: The Million Women longitudinal cohort study.

Disclosures: The study was supported by the UK Medical Research Council, Cancer Research UK, and the BHF Centre of Research Excellence. There were no other conflicts of interest declared.