January 2002 in “映像情報メディア学会技術報告” Some prostate cancers have gene changes that may affect treatment with certain drugs.
18 citations
,
March 2020 in “Frontiers in Neuroendocrinology” The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.
Marine sponges from Tabuhan Island can inhibit enzymes linked to Alzheimer's and hair loss.
8 citations
,
March 2012 in “Mass spectrometry letters” The S9 fraction with GC-IDMS is effective for measuring 5α-reductase activity.
10 citations
,
August 1998 in “Journal of Investigative Dermatology” The compounds tested could potentially treat hair loss and alopecia.
January 2026 in “British Journal of Dermatology” ELF5 is essential for skin cell growth and maintenance.
April 2024 in “The Journal of urology/The journal of urology” SRD5A2 methylation in blood can predict how well someone will respond to finasteride treatment.
February 2022 in “Research Square (Research Square)” A protein made in a plant stopped hair growth in mice.
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.
21 citations
,
November 2017 in “Archives of Dermatological Research” Higher enzyme levels found in women with hair loss, suggesting hormone imbalance.
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.
19 citations
,
September 2011 in “Journal of Dermatological Science” TGF-β1 increases androgen receptor activity in hair loss, but Hic-5/ARA55 can counter this effect.
1 citations
,
April 2017 in “Journal of Investigative Dermatology” CCL5 is important for the hair growth potential of human dermal papilla cells.
December 2022 in “Scientific Reports” Compound 4 is a promising treatment for hair loss with low toxicity.
4 citations
,
January 1982 in “Endocrinologia Japonica” The study investigated the impact of castration on 5 alpha-reductase activity in male hamster sebaceous glands, finding that enzyme activity more than doubled within 4 days post-castration and remained elevated for up to 63 days. Administering testosterone propionate or 5 alpha-dihydrotestosterone to castrated hamsters completely inhibited this increase, an effect that was blocked by cyproterone acetate. These findings suggested that androgens played a regulatory role in 5 alpha-reductase activity in hamster sebaceous glands.
January 2005 in “Urologia Journal” 5αR inhibitors help slow early prostate cancer cell growth, suggesting combined treatments are needed.
56 citations
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November 2007 in “Molecular and cellular endocrinology” Two enzymes regulate androgen receptor activity, affecting treatments for androgen insufficiency and benign prostatic hyperplasia.
2-Hydroxy-1,4-naphthoquinone is a strong 5α-reductase inhibitor.
8 citations
,
January 2012 in “General and Comparative Endocrinology” 5α-Reductase helps regulate hormone action in toad testes, especially during breeding season.
Editing the FGF5 gene in sheep increases fine wool growth.
5 citations
,
March 2019 in “Journal of lipid research” New probes were created to effectively measure specific enzymes involved in fat metabolism, which could help develop new drugs.
4 citations
,
July 2020 in “Research Square (Research Square)” The research helps understand how finasteride works and aids drug development.
64 citations
,
March 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” GPRC5D is linked to the formation of hair, nails, and certain tongue areas.
17 citations
,
January 2013 in “Talanta” A new method was developed to accurately measure enzyme activity related to prostate health.
The role of 5α-reductase-3 in prostate cancer is unclear and needs more research.
23 citations
,
March 2019 in “Gene” Editing the FGF5 gene in sheep increases wool length, confirming its role in hair growth.
26 citations
,
May 2012 in “Cellular and Molecular Life Sciences” NcoA4 may have roles beyond helping control gene activity, possibly affecting cell behavior and stability.
42 citations
,
September 2015 in “Gene” FGF5s can block the effects of FGF5, which may help control hair growth in cashmere goats.
Blocking 5α-reductase can reduce sleep deprivation-related behavioral issues in rats.
13 citations
,
January 2005 in “Chemical and Pharmaceutical Bulletin” Smaller substituents at C-17 enhance the inhibitory activity of progesterone derivatives on 5alpha-reductase.