TLDR Genetic hair shaft abnormalities can be seen with microscopes and often affect scalp hair.
The document discussed genetic hair shaft abnormalities that could be observed using light and electron microscopes. It highlighted conditions such as atopy, where hair breakage occurred due to defective cornification, and monilethrix, an autosomal dominant disorder characterized by fragile, brittle hair with elliptical nodes and constrictions. While scalp hair in adults tended to improve, bamboo defects in eyebrow and body hair could persist. Mutations in genes encoding K83 and Desmoglein were identified, with the scalp usually being the primary area affected, though more extensive cases could involve eyebrows, eyelashes, and nails.
74 citations
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July 2008 in “Journal of Dermatological Case Reports” Trichoscopy is a quick and easy way to diagnose most genetic hair problems without invasive methods.
44 citations
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January 2005 in “Dermatology” Hair problems can be caused by genetics or the environment, and treatment should focus on the cause and reducing hair damage.
46 citations
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December 2003 in “Advances in neonatal care” Assessing newborn scalp hair can reveal important health information.
21 citations
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March 2003 in “Clinical and Experimental Dermatology” Mutations in the hHb6 gene cause the hair disorder monilethrix.
10 citations
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January 2003 in “Dermatology” The E413K mutation in the hHb6 gene causes monilethrix, a hair disorder, but doesn't show consistent symptoms.
15 citations
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July 2002 in “Clinical and Experimental Dermatology” Hair microscopy is useful for diagnosing certain hair loss conditions but has limitations and must be interpreted carefully.
4 citations
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November 1999 in “PubMed” Monilethrix is a rare hair disorder causing beaded, fragile hair, often improving on its own over time.
24 citations
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January 2015 in “Current problems in dermatology” The document concludes that accurate diagnosis of hair loss in children is crucial due to limited treatment options and the condition's psychological impact.
81 citations
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June 2012 in “European journal of human genetics” Inherited ichthyoses cause widespread skin scaling and thickening due to gene mutations.
September 2004 in “Experimental dermatology” Melatonin directly affects mouse hair follicles and may influence hair growth.
November 2019 in “Harper's Textbook of Pediatric Dermatology” Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.
44 citations
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January 2005 in “Dermatology” Hair problems can be caused by genetics or the environment, and treatment should focus on the cause and reducing hair damage.
