71 citations
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February 2000 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Estradiol stops hair growth in mice, but an antagonist can reverse this effect.
November 2023 in “Scientific reports” The research identified and described a gene important for hormone conversion in endangered catfish, which varies in activity during different reproductive stages and after hormone treatment.
99 citations
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August 2003 in “Fertility and Sterility” Too much male hormone is the main cause of Polycystic Ovary Syndrome.
14 citations
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August 1943 in “Archives of Dermatology” Applying estradiol to skin causes local changes but not cancer.
August 2012 in “Open Repository and Bibliography (University of Liège)” A castrated dog developed hair loss and prostate issues from long-term exposure to estrogen cream.
21 citations
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June 2016 in “Reproductive Sciences” Women with PCOS, especially those overweight, have higher levels of IL-18 in their endometrium, which may affect fertility.
11-oxyandrogens are linked to excess hair growth in PCOS, but don't help diagnose it.
October 2025 in “Journal of the Endocrine Society” Goserelin injections can effectively manage hyperandrogenism symptoms in postmenopausal women who can't have surgery.
3 citations
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June 2023 in “European heart journal open” Women with irregular periods have a higher risk of heart disease.
4 citations
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August 2021 in “Theriogenology” Neurosteroids play a key role in controlling the brain-adrenal gland activity in pregnant sheep, both in normal and stressful situations.
5 citations
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March 2005 in “Journal of The American Academy of Dermatology” The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
October 2024 in “Journal of the Endocrine Society” The case highlights the complexity of diagnosing high testosterone in older women and the need for thorough testing.
June 2024 in “European neuropsychopharmacology” 3 citations
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February 1992 in “Journal of veterinary medicine. Series A” The farm-raised blue fox had a delayed winter coat cycle and abnormal hormone levels, but its hair growth and hormone changes were still linked.
1 citations
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August 2023 in “Case Reports in Women s Health” Leydig cell hyperplasia can cause virilization in postmenopausal women and is treatable with surgery.
Hair and nails can show hormone changes during puberty in dogs.
1 citations
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June 2019 in “Current Developments in Nutrition” S-equol supplements significantly reduced menopausal symptoms in most women.
12 citations
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May 2005 in “Fertility and Sterility” Higher insulin levels are linked to larger ovaries in women with idiopathic hirsutism.
1 citations
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March 2005 in “Zentralblatt für Gynäkologie” A postmenopausal woman had high testosterone from her right adrenal gland, leading to recommended surgery.
December 2023 in “Asian Journal of Pharmaceutical Research and Development” PCOS is a complex disorder needing lifestyle changes, support, and treatment, with new herbal treatments showing promise.
4 citations
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January 1999 in “PubMed” 202 citations
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January 1989 in “Journal of Clinical Investigation” Insulin changes sex hormone levels in women with polycystic ovary syndrome without affecting other hormone releases.
5 citations
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January 2007 in “Immunopharmacology and Immunotoxicology” 17β-Estradiol boosts allergic reactions and slows thymus aging in mice.
50 citations
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May 2004 in “Journal der Deutschen Dermatologischen Gesellschaft” Estrogens generally inhibit hair growth and improve skin quality, but their exact effects on hair follicles are complex and not fully understood.
100 citations
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April 1990 in “The Journal of Clinical Endocrinology & Metabolism” The ovary mainly causes high testosterone in PCO, while the adrenal gland is the main source in IH.
6 citations
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January 2009 In PCOS, high male hormones cause hair growth, acne, and hair loss, affecting periods.
5 citations
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August 2015 in “Bioscience, Biotechnology, and Biochemistry” Obese mice with a leptin gene mutation have a longer resting phase in their hair cycle, which may help understand certain hair loss conditions.