December 2015 in “OPAL (Open@LaTrobe) (La Trobe University)” Estrogen speeds up hair follicle cell death, causing early hair growth cycle changes, but only if a specific receptor is present.
49 citations
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March 2012 in “Journal of Pharmacology and Experimental Therapeutics” Neurosteroids help reduce seizures, but their withdrawal increases seizure activity.
February 1990 in “PubMed” Higher DHEA-S levels in hirsute females affect hair growth phases.
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.
53 citations
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January 1985 in “Acta obstetricia et gynecologica Scandinavica” Low-dose oral contraceptives reduced hair growth and testosterone levels in women with polycystic ovary syndrome.
The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
October 2025 in “Journal of Obstetric and Gynaecological Practices POGS”
January 2024 in “Women's health science journal” Hormonal imbalances are a key cause of missed menstrual periods in women.
2 citations
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January 1975 in “Archives of Dermatological Research” Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.
1 citations
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August 2019 in “Research Square (Research Square)” Cashmere goats have a hair growth cycle with specific genes regulating growth, regression, and resting periods.
5 citations
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June 2010 in “Universitas Psychologica” Progesterone helps protect against stress-related memory and behavior issues in rats.
6 citations
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April 2017 in “Journal of Dermatological Science” Ovariectomized mice mimic postmenopausal hair loss, and estradiol helps maintain hair density.
49 citations
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October 1988 in “The Journal of Clinical Endocrinology & Metabolism” Leuprolide effectively reduces hair growth in hirsute women at higher doses.
1 citations
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December 1971 in “PubMed”
5 citations
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March 2022 in “Frontiers in Endocrinology” A model using hormone levels, cycle length, and BMI can help identify PCOS in Chinese women but isn't for screening teens.
62 citations
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December 1994 in “Journal of Endocrinology/Journal of endocrinology” Prolactin speeds up hair growth and moulting in cashmere goats.
4 citations
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August 2017 in “The Nurse Practitioner” Secondary amenorrhea has many causes and requires thorough evaluation to treat and restore menstrual cycles.
September 1976 in “PubMed” Hirsutism is excessive male-pattern hair growth mainly caused by ovarian hormones, and severe cases may require costly treatment with side effects.
8 citations
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January 1998 in “Journal of Investigative Dermatology” Topical estrogen treatments did not change hair growth in certain mouse strains, questioning previous findings on their role in hair growth control.
2 citations
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December 2024 in “BMC Genomics” Key genes and pathways control sheep hair growth phases.
2 citations
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January 2013 in “Elsevier eBooks” The chapter explains the causes of excessive hair growth and masculinization in women and how to measure hormone levels related to these conditions.
80 citations
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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.
November 2023 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” SLICK cattle have better heat tolerance due to specific gene expression and pathway differences.
22 citations
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February 2002 in “Journal of theoretical biology” The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.
51 citations
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January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
1 citations
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March 1989 in “Proceedings of the British Society of Animal Production” Hormones and daylight changes control when cashmere goats shed their hair.
1 citations
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February 2024 in “Gynecological Endocrinology” Medroxyprogesterone acetate is as effective as oral contraceptives for resuming ovulation in women with PCOS.
89 citations
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December 1998 in “The Journal of Steroid Biochemistry and Molecular Biology” Human hair can be used to measure reproductive hormones.
2 citations
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January 2019 Hormonal contraceptives and therapies regulate organ functions and treat various conditions.
30 citations
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February 2003 in “Annals of Neurology” Progesterone and related compounds may help control seizures linked to the menstrual cycle but have limitations that need addressing.