13 citations
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December 1983 in “Canadian journal of zoology” Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
12 citations
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February 2006 in “Lipids” Hair texture changes with age due to varying levels of lipids.
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February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
November 2022 in “Bioengineering” The method can test hair growth products using a lab-made hair-like structure that responds to known treatments.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
6 citations
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May 2003 in “PubMed” Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.
November 2021 in “Clinical, cosmetic and investigational dermatology” An elderly woman with cancer improved after treatment for a rare skin condition with coiled hairs.
Hair movement can indicate hair quality and health.
December 2019 in “Ukrainian Journal of Veterinary and Agricultural Sciences” Donkey and horse hair have different microscopic structures, which can help tell them apart.
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January 2021 in “Pakistan journal of zoology” Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.
June 1996 in “Journal of Dermatological Science” 1 citations
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February 2024 HPV6/11 is often found in hair of men with anogenital warts, especially pubic hair, and can lead to recurrent warts.
158 citations
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December 2002 in “Development” Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.
January 2021 in “American Journal of Applied Sciences” Cut hair can help link suspects to crime scenes.
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January 1977 in “Archives of dermatological research” Mouse tail skin has different keratinization near hair follicles and scales.
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January 1990 in “Eisei kagaku” Chemical analysis of hair products on human hair can help identify specific brands and link suspects to victims.
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November 2022 in “DOAJ (DOAJ: Directory of Open Access Journals)” Male and female human hairs have different microscopic structures that can help in forensic analysis.
July 2025 in “Pakistan Journal of Medicine and Dentistry” Smoking increases the risk and severity of male pattern baldness.
January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.
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February 2018 in “International Journal of Pharmaceutics” Researchers developed a method to measure drugs in hair follicles and found that both water-loving and fat-loving drugs can be detected after being applied to the skin.
12 citations
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February 2010 in “Journal of The American Academy of Dermatology” A cancer drug caused unusual hair growth on a 100-year-old man's scalp and eyelashes.
Hair germ cells differ from epidermal cells in keratin expression, and specific keratins form after hair differentiation.
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January 1971 in “Archives of Dermatological Research”
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January 2006 in “Indian Journal of Dermatology, Venereology and Leprology” Synthetic hairs are not recommended for use.
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle melanocytes die during hair regression.
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September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
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May 2005 in “British Journal of Cancer” Plucked human hair can be used to study drug effects on certain cell markers.
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November 2020 in “Frontiers in Cell and Developmental Biology” The "Two-Cell Assemblage" assay is a new, simple method to identify substances that may promote hair growth.
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December 2011 in “Chungara” Mummy hair's chemical composition may not accurately show ancient people's health due to environmental contamination.