A genetic variant in the KRT71 gene may cause loose anagen hair and wooly hair, and symptoms might improve with age.
28 citations
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December 1997 in “Journal of Biological Chemistry” A genetic mutation in the hHa1 gene creates a smaller, but still functional, hair protein without causing hair problems.
14 citations
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January 1988 November 2025 in “Journal of Investigative Dermatology” Disrupted cell interactions in hair follicles contribute to hair loss in androgenetic alopecia.
10 citations
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January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
2 citations
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September 2023 in “Journal of the Egyptian Womenʼs Dermatologic Society” Exclamation mark hairs and broken hairs best indicate active alopecia areata.
6 citations
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January 2019 in “Biochemical and Biophysical Research Communications” Sox13 is a useful marker for early hair follicle development but not essential for hair growth.
12 citations
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February 2006 in “Lipids” Hair texture changes with age due to varying levels of lipids.
78 citations
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May 2012 in “Journal of Investigative Dermatology” A specific gene mutation causes woolly hair and hair loss.
24 citations
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December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
114 citations
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May 2001 in “Development” Overexpression of Hoxc13 in hair cells causes hair loss and skin issues.
34 citations
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March 2009 in “Journal of Investigative Dermatology” Proteomic analysis can identify genetic differences in mouse hair, helping understand hair defects and variations.
4 citations
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March 2024 in “Developmental Dynamics” ALX4 is crucial for normal craniofacial and hair development, with specific roles in different cell types.
1 citations
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January 2018 in “Open Scholarship Institutional Repository (Washington University in St. Louis)” Medieval authors used hair in literature to challenge identity and societal norms.
2 citations
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July 2024 in “Indian Journal of Dermatology” Adults with alopecia areata often have empty follicular openings, while children show more honeycomb pigment patterns.
12 citations
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December 2011 21 citations
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January 2020 in “Conservation Physiology” Hair follicles increase hair cortisol levels, so consistent hair collection methods are important.
January 2007 in “한국미용학회지” Women without alopecia have more fat tissues and longer hair roots than those with alopecia.
January 2007 in “한국미용학회지” People with hair loss have smaller hair roots and less fat tissue.
8 citations
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June 2022 in “Scientific Reports” LGR5 is a common marker of hair follicle stem cells in different animals and is important for hair growth and regeneration.
February 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Rodent spiny hair traits are due to genetic factors other than the Edar gene.
September 2025 in “British Journal of Dermatology”
January 2002 in “Proceedings of The Japanese Society of Animal Models for Human Diseases” Keratin2-6g is crucial for hair follicle development, with mutations causing cell degeneration and vacuolation.
122 citations
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June 2002 in “Genes & Development” Keratin 17 is crucial for early hair strength and cell survival.
10 citations
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January 1971 in “The American midland naturalist” A simple method can show hair's surface pattern.
March 2009 in “Medical & surgical dermatology” Women with androgenetic alopecia have fewer terminal hairs, phenol in nail surgery is safe, and a new hair transplant method is faster and less damaging.
May 2014 in “JAMA Dermatology” Mother and son diagnosed with a rare genetic hair loss condition with no effective treatment.
September 2019 in “Journal of Investigative Dermatology” Sox13 is a new marker for early hair follicle development and differentiation.
Genetic factors might cause fibrosing alopecia linked to hair shaft abnormalities.
27 citations
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September 1988 in “PubMed” Hair follicle shape determines hair type: curly, straight, or in-between.