46 citations
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January 1991 in “Tissue and Cell” The male silkmoth's antenna develops olfactory structures over 21 days, with full hair formation by day 15.
January 2022 in “Skin Appendage Disorders” Areata-like lupus can mimic alopecia areata but is a form of cutaneous lupus erythematosus.
Lichen spinulosus, usually seen in young people, can rarely occur in adults, as shown by a 52-year-old woman with a rough, bumpy rash.
1 citations
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January 1993 Zinc is crucial for animal health, and diets often need zinc supplements to prevent deficiency.
2 citations
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May 2024 in “International Journal of Medical Arts” Diphenylcyclopropenone (DPCP) is more effective than anthralin for treating resistant alopecia areata.
7 citations
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November 2018 in “Journal of the American Academy of Dermatology” White hairs often regrow in alopecia areata patches.
37 citations
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November 2002 in “Biology of Reproduction” Prenatal antiandrogen treatment altered hormone levels in adult spotted hyenas, affecting males and females differently.
December 2025 in “Clinical Case Reports” The exosome injections were from stem cells and plants, not umbilical cords.
July 2018 in “Elsevier eBooks” Acne keloidalis nuchae is a chronic skin condition more common in African men, causing itchy or painful bumps and can lead to permanent hair loss if not treated early.
36 citations
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November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
115 citations
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November 2008 in “Proceedings of the National Academy of Sciences” Reptiles have genes similar to hair proteins, suggesting hair's genetic origins predate mammals.
30 citations
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October 2009 in “Journal of Veterinary Internal Medicine” A Pomeranian dog had rickets due to a new gene mutation, leading to severe symptoms and euthanasia.
5 citations
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March 2016 in “Experimental and molecular pathology” Mice with alopecia areata had wider lymphatic vessels in their skin.
1 citations
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July 2019 in “Small ruminant research” Nerve growth factor helps cashmere goat hair cells grow by activating a specific protein.
4 citations
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January 2019 in “Tropical animal health and production” 328 citations
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November 2020 in “Nature Materials” Hydrogel scaffolds can help wounds heal better and grow hair.
March 2014 in “Human Physiology” DHEA improved brain function and behavior in old monkeys and had additional health benefits.
May 2023 in “Journal of Ethnopharmacology” The wild garlic plant, Allium macrostemon Bunge, can promote hair growth and could potentially be used to treat hair loss.
2 citations
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October 2020 7 citations
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January 2012 in “International Journal of Trichology” Sudden, unusual hair loss may indicate serious underlying health issues.
5 citations
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February 2023 in “Frontiers in Veterinary Science” Ovine dermal papilla cells are promising for hair growth research due to their stable properties and hair-inducing abilities.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” A PTH-based treatment improved hair regrowth better than ruxolitinib in a mouse model of hair loss.
3 citations
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July 2005 in “DOAJ (DOAJ: Directory of Open Access Journals)” Selenosis in calves causes health issues and changes in blood parameters.
6 citations
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December 2017 in “Journal of Drug Delivery and Therapeutics” Arnica Hydrogel may be a better, non-greasy option for treating hair loss.
26 citations
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August 2013 in “Australasian Journal of Dermatology” Certain scalp patterns can indicate the severity and activity of hair loss in Turkish alopecia patients.
5 citations
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December 2004 in “Dermatology” Two women with very high androgen levels had only slight skin issues, one due to a non-classical adrenal disorder and the other due to an adrenal tumor.
22 citations
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December 2016 in “PloS one” A specific protein in chicken embryos links early skin layers to feather development.
22 citations
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February 2002 in “Planta Medica” Compounds from Angelica koreana roots, especially osthenol, could be effective for treating conditions like prostate disease and hair loss.
4 citations
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August 2011 in “Journal of Food Biochemistry” Zinc binds to milk protein α-casein, forming stable complexes that could help fortify milk with zinc to prevent deficiencies.
8 citations
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April 1981 in “American Journal of Orthodontics” Orthodontic appliances can cause hair loss due to pressure.