January 1978 in “Enlighten: Theses (The University of Glasgow)” Inhibiting testosterone 5alpha-reductase may help treat benign prostatic hyperplasia.
9 citations
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March 2022 in “Journal of the Endocrine Society” Girls with PCOS have higher levels of certain androgens, which are linked to excess hair growth, but these androgens don't help diagnose PCOS.
May 2026 in “BMC Medicine” ACOD1 deficiency worsens hair loss by causing cell aging and mitochondrial problems, but 4-OI may help.
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.
30 citations
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February 1996 in “Journal of Investigative Dermatology” 7 citations
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August 1996 in “The Journal of Clinical Endocrinology and Metabolism”
202 citations
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August 2017 in “Nature cell biology” Lactate production is important for activating hair growth stem cells.
12 citations
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August 2011 in “European Journal of Endocrinology” Anti-Müllerian hormone is a specific marker for ovarian issues in women with conditions like PCOS.
14 citations
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November 1982 in “British Journal of Dermatology” Testosterone conversion to 5α-DHT may not be essential for its effects on the skin.
185 citations
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June 2011 in “Molecular and cellular endocrinology” Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.
28 citations
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January 2012 in “Biological & pharmaceutical bulletin” Hairless protein can both repress and activate vitamin D receptor functions, affecting gene regulation.
45 citations
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March 1997 in “Journal of Investigative Dermatology”
17 citations
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October 2006 in “Molecular and Cellular Endocrinology” The L457(3.43)R mutation in the human lutropin receptor causes increased activity and hormone insensitivity, leading to precocious puberty.
April 2024 in “Communications biology” Enzymes involved in Vitamin A metabolism affect hair growth and type in mice.
July 2022 in “British Journal of Dermatology”
8 citations
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June 1995 in “Helvetica Chimica Acta” Compound 15a was effective in inhibiting 5α-reductase.
October 2007 in “Clinical Biochemistry” New genotype linked to non-classical congenital adrenal hyperplasia found in Italian siblings.
December 2025 in “Molecules” DPP may help hair regrowth by improving blood vessel function under stress.
May 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” The enzyme 5α-reductase is important for proper blood vessel development during the fertility-related transformation of the uterus lining.
36 citations
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October 2009 in “Journal of Investigative Dermatology” Dihydrotestosterone can be made from dehydroepiandrosterone in skin cells without needing testosterone.
A 22-year-old woman with a rare genetic condition was successfully treated to develop normal female characteristics and regular menstruation.
February 2024 in “Cosmetics” The conclusion is that new plant-based treatments for hair loss may work by targeting certain enzymes.
37 citations
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January 1986 in “Carcinogenesis” ODC expression in mouse skin and tumors is varied and can be inhibited by retinoic acid or cycloheximide.
12 citations
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March 2000 in “Clinical Chemistry” Chronic DHEA supplementation slightly increases testosterone in hair but stays within safe limits.
6 citations
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July 2024 in “Heliyon” Steroid 5α-reductase evolved from protists and diversified in eukaryotes, with specific roles in mammals and plants.
11 citations
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June 2019 in “Tissue & Cell” Hair stem cells produce a protein called COL17A1 that plays a key role in their development and is linked to hair thinning and baldness.
59 citations
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January 1976 in “Vitamins and hormones” Prostate cells have proteins that bind to specific hormones, which can increase protein production when activated by these hormones.
April 2018 in “Journal of Investigative Dermatology” Stabilizing HIF1A in hair follicles increases glycolysis, which may help reduce oxidative stress and support hair growth.
43 citations
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April 2011 in “AJP Endocrinology and Metabolism” Androgens increase muscle mass by promoting myoblast growth through ornithine decarboxylase.
6 citations
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March 2003 in “Archiv Der Pharmazie” Scientists made new substances that can block an enzyme linked to prostate issues and hair loss, with potential for creating a new treatment.