July 2025 in “International Journal of Cosmetic Science” A new 6-point scale reliably measures heat damage to hair from styling tools.
18 citations
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May 2023 in “Science Advances” Activating the sonic hedgehog pathway in chicken embryos can permanently change scales to feathers.
23 citations
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December 1991 in “Annals of the New York Academy of Sciences” Balding scalps slow down hair growth.
7 citations
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February 1962 in “Experimental Biology and Medicine” Male and female mice have different lipid compositions in their skin during hair growth cycles.
2 citations
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May 2020 in “Journal of the American Academy of Dermatology” Hair shaft changes may be linked to CCCA, but their role is unclear.
8 citations
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September 1958 in “Acta pathologica et microbiologica Scandinavica” Certain treatments can speed up local hair growth in mice but don't change the overall hair growth pattern.
3 citations
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June 2020 in “Developmental Cell” Feather patterns are influenced by enhancers and chromatin looping, and the structure of protein complexes important for hair growth has been detailed.
November 2023 in “Journal of Dermatological Science” A new computer tool quickly measures hair thickness differences in people with common types of hair loss.
7 citations
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September 1980 in “Zoological Journal of the Linnean Society” Dendritic cells help regulate skin development and hair growth in mice.
8 citations
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May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
3 citations
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December 1990 in “Acta Medica et Biologica” 168 citations
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January 2005 in “Journal of Investigative Dermatology” Male and female mice have different skin thickness, and hormones affect their skin and hair growth differently.
1 citations
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March 2020 in “Hair transplant forum international” The HairMeasure device is a cheap way to measure Hair Mass Index and find scalp areas for hair exams.
1 citations
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January 2003 in “Benjamins eBooks” Confinement in farrowing crates doesn't increase chronic stress in sows, but hair cortisol measurements may not reliably indicate stress due to hair growth variations.
36 citations
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January 2004 in “European journal of cell biology” Without keratin 10, there's more growth and development of oil-producing skin cells.
2 citations
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January 2007 in “Actas Dermo-Sifiliográficas” Two cases of hairy elbows syndrome were described, with normal skin texture and symmetrical hair growth.
64 citations
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April 1992 in “Differentiation” Sciellin is a protein that helps form protective layers in skin, hair, and nails.
January 2008 in “Medical Entomology and Zoology” 60 citations
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December 2003 in “Journal of Investigative Dermatology” K6hf is found in specific parts of hair follicles, nails, and tongue, and is linked to hair growth and structure.
August 2024 in “Archives of Dermatological Research” CHI3L1 and CXCL5 proteins help promote hair growth.
20 citations
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December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.
56 citations
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January 1970 in “Cell and Tissue Research” January 2025 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia” Agoutis in captivity have more resting (telogen) hairs than growing (anagen) hairs, regardless of season or gender.
56 citations
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February 2012 in “Developmental biology” Sostdc1 controls the size and number of hair and mammary gland structures.
32 citations
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January 2017 in “Physiology & Behavior” New hair growth corticosterone levels are higher in diabetic mice, indicating long-term stress.
February 1990 in “PubMed” Higher DHEA-S levels in hirsute females affect hair growth phases.
1 citations
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January 1992 in “Bangladesh Journal of Animal Science” Camel skin has typical mammalian layers, with hair follicles, glands, and muscles, varying by body area.
15 citations
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August 2015 in “Scanning” Corkscrew and cigarette-ash-shaped hairs in tinea capitis are caused by internal hair degradation and external resistance.
April 2017 in “Journal of Investigative Dermatology” Dermal Wnt/β-catenin signaling is important for the proper size and development of hair follicles.
207 citations
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September 1973 in “Entomologia Experimentalis et Applicata” B-type hairs on female butterfly legs help them choose where to lay eggs.