Hairlessness in mammals is due to complex genetic changes in both genes and regulatory regions.
16 citations
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April 2012 in “Journal of mammalogy” Young female Australian fur seals are losing hair due to low tyrosine and zinc levels and high pollution exposure.
27 citations
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June 2020 in “Genes” Lykoi cats' unique sparse hair is linked to specific genetic variants in the Hairless gene.
2 citations
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November 2006 in “Pump Industry Analyst” Pilomatricomas don't follow the usual hair follicle cell differentiation process.
10 citations
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November 2008 in “Veterinary Dermatology” The mouse hairy ears mutation causes longer ear hair due to changes in gene expression.
3 citations
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January 2022 in “Medical Mycology Journal” Malassezia fungi in healthy noses can form a "spaghetti-and-meatballs" structure.
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.
5 citations
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November 2012 in “Actas Dermo-Sifiliográficas” Comma hairs are a new sign for identifying scalp fungal infections.
25 citations
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September 2006 in “Birth Defects Research” Different processes create patterns in skin and things like hair and feathers.
1 citations
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January 2008 in “Journal of Physiology & Pathology in Korean Medicine” Mylabris phalerata Pall. extracts can promote hair growth effectively at low doses.
6 citations
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October 2013 in “Yichuan” miRNAs are key in skin and hair growth and maintenance.
12 citations
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June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.
73 citations
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November 1979 in “British Journal of Dermatology” Minoxidil can cause excessive hair growth.
40 citations
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March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
5 citations
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January 2010 in “The anatomical record” Most dogs have hair whorls on their chest and limbs, with shelter dogs and short-haired dogs having more chest whorls.
January 2008 in “American journal of clinical dermatology” 103 citations
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December 1986 in “Journal of Investigative Dermatology” November 2025 in “Archaeometry” Animal hair from 18th-century Mazamet burial sites shows locals used goat, badger, cow, or horse fur for clothing, indicating modest economic status.
December 2025 in “ILDS-DEV” Different genes and pathways are active in yak skin and hair cells, affecting hair growth and immune responses.
1 citations
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January 2020 in “Indian Dermatology Online Journal” Pigtail hair is a sign of new hair growth and should be recognized in hair loss conditions like acute telogen effluvium.
March 1983 in “The Journal of the American Dental Association”
2 citations
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January 2000 in “Journal of Toxicologic Pathology” A single recessive gene causes sparse hair in certain Japanese White rabbits.
133 citations
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August 1969 in “Science” Melatonin causes weasels to grow white fur and become reproductively inactive.
7 citations
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January 1989 Minoxidil and 4-MA can help treat hair loss.
7 citations
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October 1992 in “PubMed” Sinus hair follicles in mammals have different nerve fiber types with species-specific patterns, especially in cats.
Onychomatricoma is a unique nail tumor, not related to other hair-related tumors.
14 citations
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December 1991 in “Annals of the New York Academy of Sciences” MYC protooncogenes may be important for hair growth, but more research is needed.
4 citations
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November 2025 in “Nature Reviews Disease Primers” January 2024 in “Elsevier eBooks”