October 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” Rodent models of PCOS show some similar and some different lipid changes compared to humans.
51 citations
,
January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
74 citations
,
February 2018 in “Stroke” Women have unique stroke risks due to hormones, contraceptives, pregnancy, and menopause.
17 citations
,
October 1997 in “Australian Journal of Agricultural Research” Stocking rate affects wool follicle inactivity, not Merino strain.
80 citations
,
January 1988 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Spironolactone can cause side effects like irregular bleeding, but lower doses may reduce these effects and still improve hirsutism.
1 citations
,
April 2001 in “Biological Rhythm Research” Deuterium oxide extends the hair cycle duration in mice without changing hair structure.
49 citations
,
October 1988 in “The Journal of Clinical Endocrinology & Metabolism” Leuprolide effectively reduces hair growth in hirsute women at higher doses.
6 citations
,
April 2009 in “Obstetrician & gynaecologist/The obstetrician & gynaecologist” Hirsutism in young women is often caused by PCOS and managed with lifestyle changes, treatments, and hormonal therapy, which takes 9-12 months to work.
1 citations
,
March 1989 in “Proceedings of the British Society of Animal Production” Hormones and daylight changes control when cashmere goats shed their hair.
14 citations
,
March 2022 in “Clinical Endocrinology” The document concludes that a systematic approach is crucial to identify causes of androgen excess in women beyond the most common cause, Polycystic ovary syndrome (PCOS).
The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
May 2022 in “Research Square (Research Square)” Melatonin improved sheep reproduction, being more beneficial and cost-effective in males.
1 citations
,
May 2019 in “The Journal of Sexual Medicine” Spironolactone may cause sexual pain and arousal issues in women, which can improve after stopping the drug and using hormone cream.
7 citations
,
June 2015 in “The anatomical record” Hexi cashmere goats' hair growth varies by stage, with Hoxc13 linked to hair activity.
1 citations
,
July 2025 in “Journal of Chemical Biological and Physical Sciences” Women with PCOS have shorter reproductive periods and higher infertility rates compared to healthy women.
103 citations
,
January 2006 in “Journal of Cell Science” The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.
375 citations
,
February 2006 in “Journal of Cell Science” The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.
21 citations
,
September 2004 in “Fertility and Sterility” Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.
50 citations
,
August 1999 in “Experimental dermatology” The control system for hair growth cycles is not well understood and needs more research.
December 2025 in “Репродуктивное здоровье Восточная Европа” Magnesium and iron deficiencies may cause menstrual cycle disorders.
Polycystic ovary syndrome (PCOS) affects about 10% of women, is often linked to obesity and family history, and can cause irregular periods, fertility issues, and other symptoms. It's usually managed with lifestyle changes, weight loss, and medication.
11 citations
,
August 2019 in “PubMed” Hirsutism in women is mostly caused by polycystic ovary syndrome and idiopathic hyperandrogenism.
October 2010 in “Reproductive Biomedicine Online” Women with pituitary adenomas often have reproductive issues, like irregular periods and trouble getting pregnant, but not always breast milk production without pregnancy.
20 citations
,
October 2017 in “Clinical Endocrinology” The conclusion is that removing both ovaries is the best treatment for excess male hormones in postmenopausal women, with medication as another option, and managing insulin resistance is important for diagnosis and treatment.
November 2023 in “JCEM Case Reports” A postmenopausal woman's excess male hormone symptoms improved after her ovaries were removed.
42 citations
,
July 1982 in “PubMed” Loestrin effectively normalizes testosterone levels and improves PCOS symptoms with minimal side effects.
14 citations
,
July 2016 in “Journal of Endocrinology” The equine epididymis mainly uses type 1 5α-reductase, and both finasteride and dutasteride can inhibit its activity.
Cows moving from tie-stall to free-stall housing had more heel problems, less joint lesions, and higher stress levels.
July 2023 in “Frontiers in veterinary science” Certain long non-coding RNAs are important for controlling hair growth cycles in sheep.