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December 2022 in “International journal of molecular sciences” Plucked hairs can be used instead of skin biopsies to study hair traits because they contain specific cells related to hair.
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January 2012 in “Experimental Dermatology” Human hair follicles switch between active and resting phases unpredictably.
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February 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.
The document concludes that Loose Anagen Hair Syndrome is a benign condition where hair is thin and easily pulled out, often improving with age.
January 2019 in “Durham e-Theses (Durham University)” Less stiff collagen promotes higher cell growth in hair follicles.
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January 1990 The "sinuskissen" in cat hair follicles is mostly connective tissue, affecting fluid flow.
November 2025 in “Nature Communications” Hair growth may involve a pulling force from the outer root sheath.
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May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
38 citations
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September 1997 in “The journal of investigative dermatology/Journal of investigative dermatology” A mutation in mice causes hair loss and skin issues due to a defect in a gene affecting cell adhesion.
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
January 2012 in “The Journal of Practical Medicine” Chinese Han individuals have fewer hair follicles and hairs than Caucasians and Africans.
January 2015 in “Chinese Veterinary Science” Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.
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March 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” The near-naked hairless mutation causes hair loss but is not due to a mutation in the hairless gene itself.
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January 1997 in “Journal of Dermatological Science” A new protein linked to hair strength was identified, aiding in understanding brittle hair conditions.
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February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
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March 2016 in “Toxicologic pathology” Dogs could be good models for studying human hair growth and hair loss.
December 2022 in “Scientific Reports” Stem cells from whiskers can be transplanted to stimulate hair growth.
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August 2003 in “Clinical and Experimental Dermatology” A new genetic mutation in the hairless gene causes a rare hair loss disorder.
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July 2010 in “International Journal of Cosmetic Science” Older people's hair becomes less shiny because it gets more uneven and curved.
7 citations
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August 2017 in “PloS one” Key genes linked to hair growth and cancer were identified in hairless mice.
203 citations
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June 2003 in “Journal of the American Academy of Dermatology” Human hair, despite its different types, shares common traits that affect its structure and response to treatments.
January 2021 in “Research Square (Research Square)” Long noncoding RNAs may help understand rabbit hair follicle density.
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January 2016 in “Springer briefs in molecular science” I'm sorry, but there's no information provided for me to summarize.
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August 2018 in “The FASEB journal” Rabbits lacking the Hoxc13 gene show similar hair and skin issues to humans with ECTD-9, making them good for research on this condition.
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October 2023 in “Science advances” Touching hair can activate nearby nerve cells through signals from the hair's outer layer.
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August 2008 in “Regenerative Medicine” Scientists created early-stage hairs from mouse cells that grew into normal, pigmented hair when implanted into other mice.