48 citations
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March 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Retinoic acid production and signaling in hair follicles are regulated by location and timing, affecting hair growth and cycling.
82 citations
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January 2000 in “Hormone Research in Paediatrics” DHEA stimulates skin oil glands and could help postmenopausal women, with potential for acne and excessive hair growth treatments.
22 citations
,
March 2012 in “Molecular Medicine Reports” DHT affects hair follicle cells by changing microRNA levels, leading to less cell growth and more cell death.
33 citations
,
August 1993 in “FEBS Letters” A new enzyme in rats may help regulate hair growth.
34 citations
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December 1991 in “Annals of the New York Academy of Sciences” Differences in enzyme activity and androgen receptors in hair follicles may explain why hair loss appears differently in men and women.
9 citations
,
November 2004 in “Bioorganic & Medicinal Chemistry Letters” New compounds were made that effectively block enzymes related to prostate issues and hair loss.
1 citations
,
May 2016 in “Pharmaceutical Biology” Aspergillus niger culture creates two finasteride derivatives with enzyme-inhibiting effects.
DHT, not testosterone, mainly affects hair growth and related conditions.
2 citations
,
March 2012 in “Nature Reviews Endocrinology” The body's change of testosterone into DHT is not necessary for testosterone's muscle and sexual effects.
January 2004 in “Pharmaceutical biotechnology” Finasteride effectively inhibits the enzyme steroid 5 alpha-reductase II.
13 citations
,
September 2013 in “Steroids” The DHT immunoassay is unreliable due to high cross-reactivity with testosterone.
December 1990 in “PubMed” Topical 17 alpha-propylmesterolone increases hair cell growth in androgenetic alopecia.
7 citations
,
January 2019 in “Australasian Journal of Dermatology” A genetic marker linked to a type of hair loss was found in most patients studied.
18 citations
,
April 2011 in “International Journal of Molecular Medicine” Dihydrotestosterone causes p27 protein breakdown in ovarian and breast cancer cells by binding with SKP2.
May 2021 in “Journal of the Endocrine Society” Adolescents with PCOS have higher levels of certain androgens, which are linked to hair growth but don't help diagnose PCOS better than testosterone levels.
31 citations
,
October 1971 in “Steroids” Human beard hair follicles change testosterone into other related hormones, but don't much change androstenedione into testosterone.
29 citations
,
June 2018 in “Scientific Reports” 15-lipoxygenase helps keep skin healthy by reducing inflammation.
January 2003 in “Humana Press eBooks” Dihydrotestosterone and 5α-Reductase play a role in hair loss and prostate health, and finasteride can increase hair growth in men without affecting sperm production, but it doesn't work for postmenopausal women with hair loss.
July 2022 in “British Journal of Dermatology” 7 citations
,
August 1996 in “The Journal of Clinical Endocrinology and Metabolism”
November 2021 in “Pharmaceutical Sciences” New compounds were made and tested, with compound 6 showing potential for treating prostate-related diseases.
13 citations
,
January 2005 in “Chemical and Pharmaceutical Bulletin” Smaller substituents at C-17 enhance the inhibitory activity of progesterone derivatives on 5alpha-reductase.
January 2008 in “Lishizhen Medicine and Materia Medica Research” The root extract of Untica mairei Levl may help treat benign prostatic hyperplasia.
8 citations
,
December 2022 in “International journal of molecular sciences” Mice without the enzyme HSD17B3 still produce normal testosterone, suggesting they have different ways to make it compared to humans.
10 citations
,
February 2008 in “Photochemistry and photobiology” Vitamin D receptor can control the hairless gene linked to hair loss even without vitamin D.
11 citations
,
November 2023 in “Journal of Advanced Research” Activating ALDH2 can boost hair growth.
13 citations
,
August 1995 in “The Journal of Steroid Biochemistry and Molecular Biology” The activity of a specific rat enzyme in the prostate and epididymis is highly dependent on the acidity level.
24 citations
,
November 2008 in “Arquivos Brasileiros de Endocrinologia & Metabologia” Four patients with a type of rickets and hair loss had different mutations in their vitamin D receptor gene, causing it to not work properly.
5 citations
,
February 1997 in “Bioorganic & Medicinal Chemistry” New compounds were made that effectively block a specific enzyme related to androgen conditions.
13 citations
,
November 2010 in “Experimental Dermatology” Vitamin C derivative reduces hair loss-related protein in cells.