April 2016 in “The FASEB Journal” Blocking androgen receptors early in life increases estrogen levels and reduces sexual motivation in male rats.
Rat skin develops from a single layer to adult-like skin with hair follicles by day 21.
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February 2019 in “Nanoscience and Nanotechnology Letters” 36 citations
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July 1980 in “Journal of Toxicology and Environmental Health” High doses of ethynylestradiol in rats caused growth issues, organ changes, and some tumors, but didn't increase overall tumor rates.
December 2013 in “Appetite” A defective gene causes hair loss and taste insensitivity in BTBR mice.
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March 2022 in “Scientific reports” Removing anthrax toxin receptor 1 in pigs prevents Senecavirus A infection and causes a rare disease similar to GAPO syndrome.
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August 2022 in “BMC Veterinary Research” C57BL/6 mice and SD rats have different sweat gland and hair follicle patterns, useful for skin research.
January 2003 in “Zhonghua shiyan waike zazhi” Androgen, especially DHT, is crucial for erectile function in rats by affecting specific brain neurons.
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February 2004 in “Genomics” A gene mutation causes lanceolate hair in rats by disrupting hair shaft integrity.
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July 2020 in “Behavioural Brain Research” Changing neuroactive steroids in baby male rats affects their memory and learning differently as they grow up.
February 2025 in “Veterinary Clinical Pathology” The ferret had a malignant apocrine gland tumor and did not survive surgery.
May 1961 in “Tumori Journal” Vitamin A treatment reduced abnormal cell growth and improved skin conditions in rats with tumors.
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May 1997 in “The Journal of Biochemistry” PAD type III enzyme is specific to rat skin and hair follicles.
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September 2013 in “The International Journal of Neuropsychopharmacology” January 2008 in “Journal of Practical Medical Techniques” Microencapsulated cells can regenerate hair follicles in rat ears.
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November 1945 in “Archives of dermatology” Transplanted skin on hooded rats often grows white hair instead of black.
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January 1982 in “Neuroendocrinology” Dopamine affects coat color changes in agouti mice.
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January 1977 in “PubMed” 
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October 1918 in “The journal of experimental zoology” Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.
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January 2018 in “Research Journal of Pharmacy and Technology” Finasteride significantly reduces fertility in male rats.
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September 2021 in “Experimental Brain Research” Rats have different touch receptors in their paws that help with movement and handling objects.
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March 2016 in “Neurotoxicity Research” Finasteride may protect brain and improve behavior in rats with liver failure.
Transplanted rat hair follicles grew hair and had increased but not fully restored nerve connections in mice.
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January 1998 in “Journal of Toxicologic Pathology” Maneb causes delayed hair follicle damage in rats.
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February 2017 in “International journal of developmental neuroscience” Female guinea pigs exposed to less allopregnanolone before birth showed more anxiety-like behavior.
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March 1942 in “Journal of Endocrinology” Thyroid hormone treatments help thyroidectomized rats grow normally.
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January 2002 in “Plastic & Reconstructive Surgery” Fetal rat wounds heal without scars at 16.5 days gestation.
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April 1946 in “PubMed” Liver extract treatment improved anemia and hair growth in a pig.
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August 1989 in “American Journal of Veterinary Research” High selenium diets in pigs cause health issues like weight loss, hair loss, and nerve damage.