24 citations
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May 2019 in “PLOS genetics” Mutations in the HEPHL1 gene cause abnormal hair and cognitive issues.
FGF9 helps hair follicles grow in small-tailed Han sheep by affecting cell growth and certain signaling pathways.
The chapter explains causes of hair loss and excessive hair growth in animals.
8 citations
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January 2015 in “Genetics and molecular research” Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.
6 citations
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August 2011 in “Anais Brasileiros de Dermatologia” Vellus hair cysts can cause acne-like bumps that don't respond to treatment.
1 citations
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June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
8 citations
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July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
4 citations
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June 2021 in “Scientific Reports” Hair fiber shape and curvature are not significantly linked when ancestry is considered.
37 citations
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August 1999 in “Journal of Investigative Dermatology” A specific gene mutation causes complete hair loss without other health issues.
April 2021 in “Aktuelle Dermatologie” Frontal Fibrosing Alopecia is a type of hair loss that mainly affects postmenopausal women, has unclear causes, and lacks evidence-based treatments.
December 2025 in “PubMed” Fish collagen peptide may boost hair growth and health.
October 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Quercetin boosts hair follicle stem cell growth and survival in cashmere goats.
January 2025 in “Cellular and Molecular Biology” The PIP5K1A gene helps cashmere growth in goats by promoting cell proliferation, and melatonin boosts its expression.
2 citations
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March 1977 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.
11 citations
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April 2012 in “Journal of Investigative Dermatology” A specific mutation in PA-PLA1α causes abnormal hair growth.
August 2004 in “Veterinary Dermatology” The red panda's hair loss was caused by an endocrine issue linked to ovarian tumors.
2 citations
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July 2023 in “Animals” FGF10 and non-coding RNAs are important for cashmere goat hair follicle development.
March 2012 in “Journal of The American Academy of Dermatology” Dermoscopy helps diagnose different hair loss conditions, and characteristics vary among ethnicities and individual cases.
The 16th-century mummy's hair was well-preserved due to a calcium coating.
August 2018 in “Journal of Investigative Dermatology” Humans evolved to have less hair and more sweat glands than chimpanzees and macaques.
19 citations
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January 2008 in “The veterinary clinics of North America. Exotic animal practice” Adrenal gland disease is common in ferrets and causes hair loss and other symptoms.
March 2019 in “Nasza Dermatologia Online” A rare scalp condition with hair loss was correctly diagnosed and treated, leading to hair regrowth.
February 2013 in “Journal of the American Academy of Dermatology” Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.
2 citations
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December 2018 Alopecia frontal fibrosante affects facial vellus hair and can be diagnosed with dermatoscopy.
1 citations
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January 2014 in “International Journal of Trichology” A patient with a rare hair condition and skin disorder showed hair improvement after treatment.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.
January 2022 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)” Uncombable hair syndrome causes frizzy hair and can affect the nervous system, eyes, and ears, often co-occurring with other hair, skin, nail, and teeth conditions, and is linked to three specific gene mutations.
12 citations
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July 2016 in “British journal of dermatology/British journal of dermatology, Supplement” Different hair fiber development might explain why hair loss severity varies in patients with a specific genetic mutation, and treatments that thicken hair could help.
6 citations
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February 2019 in “Journal of dermatology” Favus, a rare fungal infection, has reappeared in Japan.
August 2004 in “Veterinary Dermatology” More research is needed to understand coat funk in Alaskan malamutes.