16 citations,
January 2010 in “Drug Metabolism and Pharmacokinetics” Finasteride's effect on hair loss and prostate enlargement depends on its binding to an enzyme, with maximum impact at 0.2 mg dose.
5 citations,
August 2018 in “Sexual Medicine Reviews” 5α-Reductase inhibitors do not consistently increase testosterone levels in the blood.
January 2021 in “Journal of cosmetology & trichology” Ageratum conyzoides L. extract may effectively and safely treat hair loss.
66 citations,
April 2017 in “International Journal of Andrology” Men taking 5α-reductase inhibitors for enlarged prostate have a higher chance of experiencing reduced sexual desire and erectile dysfunction.
13 citations,
January 2019 in “Endocrine journal” Dihydrotestosterone treatment can help penis growth in boys with 5α-reductase deficiency but doesn't fully normalize size after puberty.
75 citations,
January 2014 in “Korean Journal of Urology” 5α-reductase inhibitors can cause sexual problems, higher risk of aggressive prostate cancer, and depression.
72 citations,
January 2011 in “Current Pharmaceutical Design” S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.
20 citations,
May 2018 in “The Journal of Urology” Men taking 5-alpha-reductase inhibitors before or after bladder cancer diagnosis had a lower risk of dying from the disease.
5 citations,
May 2020 in “Dermatologic Therapy” 5-alpha reductase inhibitors might worsen lung recovery in COVID-19 patients, suggesting a pause in their use.
August 2024 in “Research Square (Research Square)” Using 5-alpha reductase inhibitors may lower the risk of breast cancer in females.
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.
47 citations,
January 2001 in “Journal of Investigative Dermatology” High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.
44 citations,
October 2010 in “BJUI” 5-α-reductase inhibitors reduce prostate cancer risk but may cause sexual dysfunction and don't affect high-grade tumor or death rates.
35 citations,
June 2018 in “Urology” The review suggests younger men taking 1 mg finasteride report more side effects, including sexual, skin, metabolic, and psychological issues.
31 citations,
January 2017 in “Advances in Experimental Medicine and Biology” Low testosterone and 5α-reductase inhibitors can harm men's metabolic and sexual health; testosterone therapy may help, but discussing 5α-RIs' side effects is important.
26 citations,
September 2018 in “Neurobiology of Disease” Finasteride and dutasteride reduce unwanted movements from Parkinson's disease treatment by normalizing certain brain signals.
17 citations,
October 2003 in “Brazilian Journal of Medical and Biological Research” The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
13 citations,
November 2012 in “PubMed” 5α-reductase inhibitors may worsen sexual drive and spontaneous erections but don't worsen existing erectile or ejaculatory problems.
12 citations,
January 2018 in “Journal of Drug Delivery Science and Technology” The new particle system could be a promising treatment for diseases related to the 5-α reductase enzyme.
9 citations,
August 2019 in “Clinical genitourinary cancer” Taking 5-Alpha Reductase Inhibitors before bladder removal surgery might make high-grade bladder tumors less aggressive.
4 citations,
November 2022 in “Frontiers in endocrinology” The enzyme 5α-reductase type 1 is important for blood vessel development and fertility in the uterus.
1 citations,
August 2015 in “Current Sexual Health Reports” 5α-reductase inhibitors can cause serious and possibly lasting sexual and psychological side effects.
November 2023 in “Scientific reports” The research identified and described a gene important for hormone conversion in endangered catfish, which varies in activity during different reproductive stages and after hormone treatment.
November 2017 in “JAMA internal medicine” Women also use 5α-reductase inhibitors, and their effects differ from men.
19 citations,
April 2020 in “Dermatologic Therapy” Dutasteride works better than finasteride for hair loss, with both being safe to use.
6 citations,
January 2018 in “Pharmacoepidemiology and Drug Safety” Starting 5-alpha reductase inhibitors does not significantly increase the risk of rhabdomyolysis in older men, but is linked to a higher risk of muscle conditions.
3 citations,
March 2018 in “European Urology Supplements” Using 5-alpha-reductase inhibitors may improve bladder cancer survival in men.
2 citations,
May 2019 in “PubMed” Oral finasteride and dutasteride may negatively affect erectile function in rats.
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.
37 citations,
April 2019 in “Journal of The American Academy of Dermatology” Some treatments like intralesional steroids and 5α-reductase inhibitors are effective for frontal fibrosing alopecia, but more research is needed.