6 citations
,
August 2001 in “PubMed” The stump-tailed macaque is a good model for studying human hair loss, but it's expensive and hard to find, while rodent models are promising for understanding hair growth and finding new treatments.
103 citations
,
February 1972 in “Proceedings of the National Academy of Sciences” A unique enzyme in guinea pig hair follicles helps form protein cross-links in hair.
8 citations
,
December 2020 in “Scientific reports” Selective breeding caused the unique curly hair in Mangalitza pigs.
9 citations
,
February 1984 in “Zentralblatt für Veterinärmedizin Reihe A” Biotin is essential for healthy skin and claws in pigs.
8 citations
,
November 1976 in “Journal of Investigative Dermatology” The naked mutation in mice causes hair loss and helps identify keratin genes.
June 2023 in “Journal of Pharmaceutical and Health Research” Caffeine hair tonic with 0.001% concentration was more effective in promoting hair growth on guinea pigs.
35 citations
,
January 2001 in “Journal of Animal Science” High dietary selenium, especially inorganic, causes weight loss and selenosis in pigs, with effects varying by hair color.
9 citations
,
July 2019 in “Folia Morphologica” Brandt's hedgehog has thick skin on its back and many glands near its nostrils.
2 citations
,
January 1960 in “Australian Journal of Biological Sciences” The Naked gene in mice causes abnormal sebaceous glands and disrupts hair follicle organization.
September 2025 in “Media Kedokteran Hewan” 90% of African pygmy hedgehogs in the study had fungal infections.
7 citations
,
January 1992 in “Acta Histochemica” Porcine and human pilosebaceous units are very similar.
January 2021 in “Journal of Entomology and Zoology Studies” The piglets fully recovered from psoroptic mange after treatment.
38 citations
,
July 1989 in “Archives of dermatological research” Testosterone causes hair loss in AGA mice, which are good for testing baldness treatments, and both minoxidil and cyproterone acetate can prevent this hair loss.
February 2025 in “Eduvest - Journal Of Universal Studies” Kepok banana peel extract serum at 30% concentration effectively promotes hair growth.
7 citations
,
November 2014 in “Histochemistry and Cell Biology” The we/we wal/wal mice have defects in hair growth and skin layer formation, causing hair loss, useful for understanding alopecia.
January 2023 in “Faculty of 1000 Research Ltd” Androgen loss may speed up hair greying.
1 citations
,
March 2013 in “Revista de Investigaciones Veterinarias del Perú” Benzalkonium chloride effectively treats skin fungus in guinea pigs.
28 citations
,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
Researchers made a mouse model with curly hair and hair loss by editing a gene.
April 2017 in “Journal of dermatological science” Removing PLCg1 from skin cells caused thicker oil glands and less hair in mice.
April 1974 in “Pediatric Research” The Naked (N) trait in mice is linked to lower glycine and tyrosine in hair proteins.
1 citations
,
January 2012 in “Indian Journal of Small Ruminants (The)” Chegu goats have two types of hair follicles, with primary ones having glands and muscles, and secondary ones lacking them.
12 citations
,
August 1984 in “Genetics Research” The N gene affects the protein makeup of mouse hair.
Contraceptives may affect hair growth due to estrogen, with effects varying by individual.
4 citations
,
July 2024 in “Animals” A new depilation method using cold wax reduces injury and improves hair growth studies in mice.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
12 citations
,
November 1987 in “Pediatric dermatology” Four children had unmanageable pale blond hair due to uncombable-hair syndrome.
96 citations
,
January 1940 in “Journal of Endocrinology” Complete adrenal removal causes more hair loss in rats than partial removal.
17 citations
,
November 2013 in “American Journal of Primatology” Different monkey species in a lab showed varying levels of hair loss due to factors like type, sex, age, season, and living conditions.