44 citations
,
July 2012 in “Endocrine Practice” We need to learn more about 5α-reductases and neuroactive steroids to safely make drugs targeting these enzymes.
Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.
4 citations
,
June 2015 in “Journal of Genetics/Journal of genetics” Genetic differences within ethnic groups may affect prostate cancer treatment effectiveness.
August 2025 in “Research Square (Research Square)” High TNF-α levels may increase hair loss risk after PRP therapy.
41 citations
,
July 2001 in “PubMed” Estrogens can reduce DHT production in hair follicles, but are less effective than finasteride and progesterone.
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.
The models can help find better inhibitors for conditions like baldness and prostate disorders.
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.
December 2018 in “Actas urológicas españolas” 5-alpha reductase inhibitors may have additional effects on cancer, mental health, heart health, and hormone levels beyond treating prostate enlargement.
10 citations
,
October 2018 in “Sexual medicine reviews” Men using hair loss drugs like finasteride may experience sexual side effects like erectile dysfunction, but it's unclear who will be affected and when. Treating depression and sexual symptoms is suggested, as these men often have higher rates of both. More research is needed to understand why these side effects occur.
9 citations
,
July 2011 in “The Journal of Sexual Medicine” Hair loss drugs like finasteride may cause lasting sexual and mood side effects, and more research is needed to understand these risks.
218 citations
,
December 2011 in “Advances in Urology” The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.
38 citations
,
October 2014 in “Current Opinion in Endocrinology, Diabetes and Obesity” 5-alpha reductase deficiency leads to male sexual development issues and treatments like finasteride help with prostate enlargement and hair loss.
45 citations
,
August 2010 in “Hormone Molecular Biology and Clinical Investigation” Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.
5 citations
,
January 2022 in “Clinical cancer investigation journal” Certain Dibenzo derivatives may help treat prostate cancer.
47 citations
,
September 2016 in “Reviews in endocrine and metabolic disorders” The skin's ability to produce hormones is linked to various skin conditions, and better understanding this process could lead to new treatments.
27 citations
,
January 2017 in “Neuropsychopharmacology” The enzyme 5α-reductase is key in causing psychotic-like effects from sleep deprivation.
35 citations
,
May 1986 in “Clinics in endocrinology and metabolism” The exact cause of increased 5α-reductase activity leading to hirsutism in women is still unknown.
28 citations
,
May 2018 in “Scientific reports” Exercise improves insulin sensitivity and hormone regulation in PCOS rats.
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.
9 citations
,
August 2000 in “Journal of Periodontal Research” Finasteride reduces testosterone conversion, progesterone lessens this, and levamisole enhances finasteride's effect.
23 citations
,
October 2018 in “Expert Opinion on Drug Safety” Consider benefits and risks of new alopecia treatments for safety.
32 citations
,
May 2010 in “Pharmacopsychiatry” Finasteride reduces new brain cells in male mice, possibly causing depression.
59 citations
,
March 2020 in “Journal of Biomedical Science” Understanding how hair follicle stem cells work can help find new ways to prevent hair loss and promote hair growth.
20 citations
,
March 2017 in “Reproductive Biology and Endocrinology” Women with PCOS have higher 5α-reductase activity, which may be linked to insulin resistance.
11 citations
,
January 1991 in “Urology” New hormonal treatments for enlarged prostate show promise for safer, effective non-surgical options.
July 2024 in “Biological and Pharmaceutical Bulletin” Licorice extract helps hair growth and may treat hair loss.
22 citations
,
December 2010 in “Journal of Cosmetic Dermatology” Finasteride may increase depression by reducing brain cell growth.
1 citations
,
August 2002 in “Zeitschrift für Hautkrankheiten” Male androgenetic alopecia involves hair follicle miniaturization due to DHT, with potential treatments using inhibitors and blockers.
147 citations
,
April 1990 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride safely lowers DHT levels without affecting testosterone.