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 2026 in “Frontiers in Endocrinology” Testosterone therapy improved symptoms in a woman with congenital adrenal hyperplasia.
41 citations
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July 2001 in “PubMed” Estrogens can reduce DHT production in hair follicles, but are less effective than finasteride and progesterone.
January 2011 in “The Journal of Secondary Vocational Education” Isotretinoin treatment in teens with acne can cause hormonal changes, leading to menstrual irregularity and increased hirsutism.
289 citations
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May 2003 in “Journal of Investigative Dermatology” Human skin can produce steroids from cholesterol.
January 1982 in “Side effects of drugs annual” High doses of certain vitamins can cause serious side effects and health risks.
1 citations
,
January 2003 in “Chinese Journal of Pharmaceuticals” A new method to make Finasteride is more cost-effective and yields 16%.
277 citations
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July 2002 in “Molecular Endocrinology” Removing part of the vitamin D receptor stops vitamin D from working properly.
49 citations
,
November 2013 in “The Journal of Steroid Biochemistry and Molecular Biology” Vitamin D receptor helps control skin cell growth and hair development.
Azelaic acid and vitamin B6 together may improve hair growth.
4 citations
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April 2001 in “Experimental Dermatology” Using single dermal papillae is unreliable for analyzing androgen metabolism in hair follicles.
15 citations
,
May 2017 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” High-dose corticosteroids and methotrexate had a modest effect on severe childhood alopecia, but side effects and relapse were concerns.
100 citations
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May 2011 in “Journal of Pediatric and Adolescent Gynecology” The document concludes that proper diagnosis and a multidisciplinary approach are crucial for managing Congenital Adrenal Hyperplasia effectively.
September 2005 in “Journal of Investigative Dermatology” Ferulic acid helps stabilize vitamins C and E for better skin protection from the sun, certain compounds may promote hair growth, atopic dermatitis patients have lower skin defense molecules, older men are more likely to get a type of skin cancer, and a substance called relaxin may prevent age-related skin thickening.
10 citations
,
August 1990 in “Journal of Steroid Biochemistry” High doses of cyclosporine A increase testosterone conversion, possibly boosting hair growth.
1 citations
,
October 2024 in “JCEM Case Reports” 5α-reductase deficiency can cause ambiguous genitalia and gender dysphoria, treatable with testosterone.
41 citations
,
March 1998 in “Archives of Dermatological Research” The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
49 citations
,
October 1988 in “The Journal of Clinical Endocrinology & Metabolism” Leuprolide effectively reduces hair growth in hirsute women at higher doses.
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.
May 2020 in “Current developments in nutrition” Vitamin A affects the resting phase of hair growth, with both low and high levels increasing the number of hair follicles in this phase.
September 2009 in “Annales D Endocrinologie” DHEA supplementation may improve quality of life, neuropsychological functions, and sexual satisfaction in individuals with adrenal insufficiency, but more research is needed to confirm its safety and effectiveness.
January 1999 in “Proceedings of the British Society of Animal Science” Biotin deficiency may harm hair follicle health and growth in Angora goats.
November 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Disrupted cholesterol production impairs hair follicle stem cells, leading to hair loss.
227 citations
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January 1998 in “Journal of biological chemistry/The Journal of biological chemistry” Mutations at Val-889 and Arg-752 disrupt key interactions in the androgen receptor, affecting its function.
January 2007 in “Linchuang pifuke zazhi” HIF-1α in fibroblasts boosts hair growth and health.
18 citations
,
October 1978 in “The journal of investigative dermatology/Journal of investigative dermatology” Excess vitamin A causes lasting gland changes in mouse hair follicles.
12 citations
,
March 2000 in “Clinical Chemistry” Chronic DHEA supplementation slightly increases testosterone in hair but stays within safe limits.
13 citations
,
February 2016 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Mice without active or present vitamin D receptors maintain normal blood sugar control and islet gene expression when calcium levels are normal.
April 2019 in “Advances in integrative medicine” HST and HST/F promote hair growth and may help treat alopecia.
8 citations
,
March 2011 in “Endocrine” A new gene mutation causes vitamin D-resistant rickets and hair loss in two siblings.