61 citations
,
September 2010 in “Journal of Dermatological Science” Stress hormones and autoimmune reactions can cause hair loss.
24 citations
,
November 2015 in “Annals of Nutrition and Metabolism” Certain SHBG gene variants, like rs727428, are linked to higher testosterone levels in women with PCOS.
24 citations
,
January 2011 in “Sexual Development” Intersex frogs have different brain gene activity related to sex and thyroid hormones.
24 citations
,
May 1951 in “Endocrinology” Adrenocorticotropic hormone inhibits growth and affects body composition in male rats.
16 citations
,
May 1998 in “International Journal of Dermatology” Stress hormones like cortisol may trigger psoriasis flare-ups.
9 citations
,
July 2024 in “Internal Medicine Journal” Gender-affirming hormone therapy improves mental health and gender incongruence but requires careful management of cardiovascular and cancer risks.
8 citations
,
April 2014 in “Anti-Cancer Drugs” A hormone linked to collagen helps hair grow back in mice after chemotherapy, and may also prevent bone loss.
6 citations
,
August 2023 in “Fertility and Sterility” The 2023 guideline for PCOS suggests using updated diagnostic criteria, assessing related health risks, and recommends lifestyle changes and specific treatments for symptoms and fertility issues.
4 citations
,
August 2024 in “PLoS ONE” Both injectable contraceptives lower testosterone and SHBG levels, with NET-EN having a greater effect than DMPA-IM.
2 citations
,
March 2020 in “Baghdad Science Journal” Finasteride effectively reduces DHT and E2 levels, helping with prostate enlargement.
November 2024 in “Psychoneuroendocrinology” Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.
March 2024 in “BMC women's health” The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.
January 2021 in “Indian Journal of Pharmaceutical Sciences” Laser hair removal doesn't affect thyroid hormones.
January 2020 in “Indian Journal of Pharmaceutical Sciences” Kuntai capsules combined with nilestriol tablets effectively reduce perimenopausal symptoms and improve hormone levels.
January 2015 in “Journal of clinical & experimental dermatology research” A protein combining parathyroid hormone and collagen helped hair regrow in mice with a hair loss condition.
March 2012 in “Journal of Pediatric and Adolescent Gynecology” Doctors vary in how they initially test for PCOS, but most agree on using oral contraceptives and lifestyle changes as first treatments.
11 citations
,
October 1997 in “British Journal of Dermatology” Wool follicles grew fibres for 8-10 days in a serum-free culture, influenced by calcium, glucose, amino acids, and insulin.
January 2025 in “Medical Research Archives” Sex hormones are crucial for healthy skin and managing skin conditions.
82 citations
,
February 1989 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” A three-month treatment with a GnRH agonist significantly lowered androgen levels and 5α-reductase activity in men with benign prostatic hyperplasia.
69 citations
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February 1983 in “Gut” Men with coeliac disease may have hormone imbalances that could affect sexual function, but these can improve with better gut health.
10 citations
,
March 2019 in “Journal of neuroendocrinology” Testosterone affects stress hormone levels differently in adolescent and adult male rats.
10 citations
,
February 2013 in “British Journal of Dermatology” Thyrotropin-releasing hormone may help control skin and hair growth and could aid in treating related disorders.
6 citations
,
May 2010 in “Journal of Dermatological Science” Human skin cells can respond to thyroid-stimulating hormone, affecting hair and skin health.
3 citations
,
January 1967 Testosterone slightly improved aging skin, while corticosteroids worsened it.
November 2022 in “Skin Appendage Disorders” PT-20 did not significantly improve gray hair repigmentation.
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.
10 citations
,
January 2000 in “PubMed” Both finasteride and GnRH agonist treatments reduced hair growth in women with idiopathic hirsutism, but GnRH agonist was more effective.
13 citations
,
August 2016 in “Reproduction” High doses of nandrolone decanoate disrupt ovarian hormones and receptors in rats, with recovery only at lower doses and longer recovery times.
2 citations
,
September 2025 in “BMC Genomics” Maize root hairs adapt differently to mild and severe cold, with mild stress allowing some growth and severe stress stopping growth to focus on defense.
100 citations
,
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.