October 2024 in “Journal of the Endocrine Society” Hirsutism in young girls can have various causes beyond PCOS, so diagnoses should be reconsidered if treatments don't work.
2 citations
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January 1990 36 citations
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March 2014 in “Cell death and differentiation” Disrupting β-catenin signaling in certain cells causes anorectal malformations.
37 citations
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October 2013 in “PLoS ONE” MicroRNAs play a key role in wool growth in Tibetan sheep.
May 2026 in “Clinical and Experimental Dermatology” Sublingual minoxidil improved hair growth in a 10-year-old boy without side effects.
60 citations
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June 2007 in “Pharmacology Biochemistry and Behavior” Blocking progesterone metabolism can cause depression-like behavior in mice.
231 citations
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October 1999 in “Journal of Clinical Investigation” Activating the Sonic hedgehog gene in mice can start the hair growth phase.
25 citations
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April 1949 in “The journal of experimental zoology” Testosterone applied to rabbit skin increases skin cell growth and changes skin structure.
October 2023 in “IJEM case reports” A 15-year-old girl with no menstrual period was diagnosed with a genetic condition that makes her body unable to respond to male hormones, leading to female characteristics despite having male genetic makeup.
March 2024 in “Research Square (Research Square)” Sex steroids affect the MafB gene differently in male and female hamsters.
January 2013 in “Reproductive Biology” 20 citations
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April 2002 in “PubMed” Mini rats have thinner skin, more fat, and different hair cycles than Wistar rats due to lower growth hormone levels.
4 citations
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February 2024 in “Poultry Science” miR-140-y helps control feather growth in geese by affecting the Wnt signaling pathway.
17 citations
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November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
Lhx2 is a crucial regulator of the Sonic Hedgehog signaling in early mouse retinal development.
22 citations
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July 2012 in “International Journal of Trichology” Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.
15 citations
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April 2019 in “Best Practice & Research Clinical Endocrinology & Metabolism” Polycystic Ovary Syndrome (PCOS) in teenagers is a complex condition linked to genetics and environment, often associated with obesity and insulin resistance, and is treated with lifestyle changes and medication.
16 citations
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July 1992 in “The journal of experimental zoology/Journal of experimental zoology” Adrenal glands delay the start of winter fur growth in mink.
January 2026 in “Cosmoderma” A 9-year-old girl has a rare hair disorder causing beaded, sparse hair.
October 2019 in “Research Square (Research Square)” The junction of the inner and outer prepuce with good blood flow is best for vascular pedicle flaps.
27 citations
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April 2011 in “Folia Histochemica et Cytobiologica” DHT deficiency can disrupt cell connections in rat testes, possibly affecting fertility.
4 citations
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January 1982 in “Endocrinologia Japonica” Androgens regulate 5 alpha-reductase activity in hamster sebaceous glands.
August 2017 in “Journal of pediatric surgery case reports” A toddler with a rare adrenal gland tumor causing male-like physical changes was successfully treated with surgery.
February 2010 in “ePrints Soton (University of Southampton)” Male sexual differentiation is regulated independently, while female differentiation occurs in an androgenic environment, affecting conditions like congenital adrenal hyperplasia.
10 citations
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February 2007 in “Current Opinion in Endocrinology, Diabetes and Obesity” Low birthweight and rapid weight gain after birth may increase the risk of developing polycystic ovary syndrome.
Hair and nails can show hormone changes during puberty in dogs.
194 citations
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May 2000 in “Journal of Investigative Dermatology” The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.
May 2021 in “Journal of the Endocrine Society” A 23-year-old woman's missed periods were caused by a rare genetic disorder treated with hormone patches.
8 citations
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May 1996 in “Endocrinology” Certain adrenal hormones can strongly stimulate oil gland growth in hamster skin, similar to male hormones.
January 2020 in “ScholarWorks (Central Washington University)” NAG-1 may help prevent some metabolic issues related to PCOS.