24 citations
,
September 2002 in “Der Urologe” A stronger dual 5α-reductase inhibitor could improve treatment for benign prostatic hyperplasia by further reducing DHT levels.
21 citations
,
August 2001 in “PubMed” This article discusses the enzyme pathways involved in androgenetic alopecia and the role of finasteride in reducing dihydrotestosterone levels to promote hair growth; it reports no new clinical results.
18 citations
,
May 2014 in “Menopause” This study found that a 5-mg daily dose of transdermal testosterone cream in postmenopausal women restored testosterone levels to those typical of premenopausal women.
12 citations
,
February 2016 in “Biochemical and Biophysical Research Communications” This study found that sulforaphane treatment enhanced hair regeneration in ob/ob mice by increasing DHT-degrading enzyme levels and lowering plasma testosterone and DHT.
10 citations
,
February 2008 in “International Journal of Andrology” This study found that a 400-mg dose of oral testosterone with dutasteride increases serum testosterone levels for 8–10 hours in hypogonadal men, with the nanomilled formulation unaffected by food, suggesting a practical twice-daily therapy option.
5 citations
,
January 2013 in “Spatula DD - Peer Reviewed Journal on Complementary Medicine and Drug Discovery” This study found that a polyherbal formulation of Trigonella foenum-graecum and Butea monosperma significantly promoted hair growth and reduced DHT levels in a chemotherapy-induced alopecia model.
4 citations
,
October 2022 in “Evidence-based complementary and alternative medicine” This study found that Ficus carica extract enhanced fertility markers, including hormone levels and reproductive organ activity, in rats of both sexes, suggesting potential benefits for managing fertility issues.
2 citations
,
September 2024 in “Animal Cells and Systems” This study found that HBV infection altered steroid metabolism in male mice, significantly increasing levels of dehydroepiandrosterone and reducing dihydrotestosterone, which may suppress viral replication by affecting HBV promoter activity.
April 2025 in “Journal of the International Society of Sports Nutrition” In this study, creatine supplementation over 12 weeks showed no effect on androgen levels or hair follicle health in healthy young males, challenging the belief that creatine causes hair loss.
March 2024 in “Cell communication and signaling” This study found that sleep deprivation in mice can trigger prostatitis by activating the cGAS-STING pathway due to reduced levels of dihydrotestosterone and melatonin, resulting in a pro-inflammatory environment, while recovery sleep can mitigate these effects.
April 2022 in “Diabetes Therapy” In this case report, the researchers emphasize the importance of regular prostate exams and PSA tests for diabetic men, including those who are hypogonadal, because prostate cancer development is linked to intraprostatic dihydrotestosterone levels, not serum testosterone levels.
In this study, oral testosterone administered three times daily normalized serum testosterone levels in men with experimentally induced hypogonadism over nine days and significantly reduced SHBG.
165 citations
,
December 2002 in “Molecular and Cellular Endocrinology” This study found that finasteride improves scalp hair growth in men with male pattern hair loss by reducing scalp dihydrotestosterone levels, but it did not benefit postmenopausal women with female pattern hair loss.
142 citations
,
February 1985 in “Fertility and sterility” This study found that spironolactone reduced serum androstenedione and anagen hair shaft diameter in hirsute patients but did not significantly alter unbound testosterone levels, suggesting its effects are primarily peripheral.
11 citations
,
December 2010 in “The Journal of Urology” This study found that combining oral testosterone with dutasteride increased testosterone bioavailability in hypogonadal men while suppressing dihydrotestosterone levels over a 28-day period.
8 citations
,
February 2014 in “General and Comparative Endocrinology” In this study, exposure to the drug finasteride in Silurana tropicalis significantly increased testosterone levels in liver and testis tissues and altered gene expression related to male reproduction and oxidative stress.
In these aquatic laboratory studies, researchers found that Finasteride reduced dihydrotestosterone levels in fathead minnows and increased gene expression related to androgen pathways in both minnows and medaka, indicating potential conservation of pharmaceutical effects on androgen biosynthesis across different species.
March 2024 in “The journal of sexual medicine” In this laboratory study, finasteride administration in male rats lowered dihydrotestosterone levels and reduced c-Fos protein activation in brain tissue, indicating an impact on brain regions like the hippocampus, though these effects diminished after one month of withdrawing the drug.
July 2021 in “CRC Press eBooks” This study reports that topical finasteride significantly reduced scalp and plasma dihydrotestosterone in men and women without altering serum testosterone levels, with promising preliminary results.
82 citations
,
February 1989 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” This study found that in men with benign prostatic hyperplasia, a 3-month treatment with a long-acting GnRH agonist significantly reduced intraprostatic DHT and 3α-diol levels by about 90% and testosterone by about 75%.
57 citations
,
May 1986 in “Clinics in endocrinology and metabolism” This review found that women with idiopathic hirsutism may have increased 5α-reductase activity, as indicated by elevated levels of a dihydrotestosterone-reduced metabolite, but more research is needed to confirm its clinical relevance as a biomarker.
28 citations
,
January 2009 in “Cellular & Molecular Biology Letters” This study concluded that finasteride-induced DHT deficiency intensified constitutive iNOS expression in rat testicular and epididymal cells, suggesting a complex regulatory relationship needing further investigation.
21 citations
,
April 2011 in “Physiological Research” In this review, the role of DHT in male-type obesity and metabolic diseases is discussed, with increased levels potentially exacerbating cardiovascular disease risk; the paper reports no new results.
20 citations
,
August 2014 in “Talanta” This study developed a novel method to simultaneously measure finasteride, dutasteride, and related biomarkers in serum, finding that both drugs lowered DHT levels while increasing substrate concentrations.
17 citations
,
May 1998 in “Steroids” This study constructed a model to predict finasteride's inhibitory activity on 5α-reductase type 2 and calculated that a 1 μM plasma concentration, after 50 mg administration, matches prostate inhibition levels.
17 citations
,
June 1996 in “The Journal of Steroid Biochemistry and Molecular Biology” In this study, FCE 28260 showed greater potency than finasteride in inhibiting 5α-reductase enzymes and reducing prostate DHT levels in rats.
13 citations
,
May 2018 in “Urologic Oncology: Seminars and Original Investigations” In this study, researchers found no significant difference in bladder cancer incidence between men treated with finasteride and those given a placebo, suggesting that reduced dihydrotestosterone levels may not impact bladder cancer risk.
10 citations
,
October 2020 in “Microscopy and Microanalysis” This study found that resveratrol significantly alleviated testicular damage in male rats caused by finasteride, which otherwise led to decreased testosterone levels and various histopathological alterations in the testes.
9 citations
,
March 1991 in “Endocrinology” This study in rats suggests that combining the 5 alpha-reductase inhibitor 4-MA with the antiandrogen Flutamide may enhance prostate cancer therapy by additively inhibiting prostatic growth and mRNA levels of androgen-sensitive prostatic binding proteins.
8 citations
,
July 2017 in “The Journal of Steroid Biochemistry and Molecular Biology” This study suggests that in gilthead seabream, DHT is involved in the onset of the meiotic phase of spermatogenesis and influences serum levels of E2 through regulation of aromatase activity.