January 2015 in “Journal of clinical and investigative dermatology” Clipping is the best method to prepare rats for studying hair loss from chemotherapy because it causes less skin damage and effectively gets hair to the right growth phase.
January 2000 in “Medical Entomology and Zoology” 
16 citations
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December 2019 in “Animals” Overexpressing Tβ4 in goats' hair follicles increases cashmere production and hair follicle growth.
11 citations
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November 2015 in “Journal of Functional Foods” Hibiscus petals improved blood sugar and stress responses in diabetic rats.
Papaya seed extract, especially at 15%, speeds up hair growth in rabbits.
1 citations
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April 2018 in “Journal of dairy science” Dairy cows' skin and hair follicles change size and growth phase around the time they give birth.
4 citations
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July 2014 in “International Journal of Dermatology” Twins had rare skin cysts likely due to genetics.
October 2025 in “Journal of the Endocrine Society” Rathke’s cleft cysts can rarely cause Cushing disease, and surgery can improve symptoms.
2 citations
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October 1999 in “Annals of the New York Academy of Sciences” Melatonin and cortisol affect mink winter hair growth, but β-endorphin levels do not.
4 citations
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June 2020 in “DOAJ (DOAJ: Directory of Open Access Journals)” A woman with Rhupus and Rowell syndrome was treated successfully with medication adjustments.