11 citations
,
December 2018 in “Assay and Drug Development Technologies” This review highlights the challenges in screening for steroid 5 alpha-reductase inhibitors and discusses significant variability in the effectiveness of finasteride and dutasteride, calling for standardized testing methods to develop safer, more specific inhibitors from herbal preparations.
6 citations
,
July 2024 in “Heliyon” This study examined the evolutionary and functional homology of steroid 5α-reductase and DET2 proteins, identifying protists as a common ancestor, and discovered a new subclass DET2-like in plants, potentially involved in polyprenol reduction.
24 citations
,
June 2013 in “Journal of neuroendocrinology” This research observed that 5α-reductase inhibitors showed significant tic-suppressing effects in Tourette's syndrome, suggesting a key role for this enzyme in the disorder's pathogenesis.
22 citations
,
June 2002 in “Journal of Medicinal Chemistry” This study found that several synthesized compounds were potent inhibitors of human steroid 5alpha-reductase type 2 and reduced prostate weights in treated rats, with compound 15 showing promise for potency in humans.
15 citations
,
October 2016 in “Steroids” This study developed and validated a label-free assay using LC-MS to screen for S5αR inhibitors, identifying Thai herbal extracts, Impatiens balsamina L. and Curcuma longa L., as promising sources.
12 citations
,
March 2017 in “Medicinal Chemistry Research” This study found that certain curcumin analogs derived from natural plant sources exhibit anti-androgen activity by inhibiting steroid 5-alpha reductase, identifying key structural features for their potency and safety in treating androgen-related conditions.
August 2024 in “Biomedical Journal of Scientific & Technical Research” This review discusses the role of steroid 5 alpha reductase 2 in converting testosterone to DHT and its association with conditions like benign prostatic hyperplasia and prostate cancer; it reports no new results.
29 citations
,
April 2019 in “BMJ. British medical journal” This study concluded that men with benign prostatic hyperplasia receiving steroid 5α-reductase inhibitors, such as dutasteride or finasteride, have a higher risk of developing new onset type 2 diabetes compared to those taking tamsulosin.
1 citations
,
January 2002 in “PubMed” The researchers reported that both finasteride and PM-9 competitively inhibit the 5 alpha-reductase enzyme in P. crustosum broth.
15 citations
,
April 2003 in “Journal of Dermatological Science” This study found no significant associations between the polymorphisms of SRD5A1 and SRD5A2 genes and androgenetic alopecia, clinical types of baldness, or response to finasteride in Koreans.
December 2022 in “Scientific Reports” This study found that caffeic acid amide derivative, compound 4, effectively inhibited steroid 5α-reductase type 1 in vitro, suggesting potential for development as a treatment for androgenic alopecia.
89 citations
,
February 1993 in “Journal of Medicinal Chemistry” This research article focuses on nonsteroidal inhibitors of human type I steroid 5-alpha-reductase but reports no new results.
26 citations
,
June 2005 in “Journal of Molecular Endocrinology” This study found that both finasteride and dutasteride act as slow, time-dependent inhibitors of steroid 5α-reductase type II, with dutasteride being more efficient, influenced by the enzyme's genetic variants.
4 citations
,
November 2022 in “Frontiers in endocrinology” This study found that intracrine androgen signaling via 5α-reductase is essential for optimal endometrial decidualization and vascular development during this process in mice.
December 2023 in “Biointerface Research in Applied Chemistry” This study used molecular docking to identify stiripentol as a potential new inhibitor of the SRD5A2 enzyme, which is targeted for treating androgen-related diseases; however, in vivo trials are needed to validate its efficacy.
May 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that intracrine androgen signaling, mediated by steroid 5α-reductase, is essential for optimal decidualization and vascular development in the endometrium during pregnancy, indicating potential targets for improving age-related fertility issues.
35 citations
,
March 2013 in “American Journal of Medical Genetics Part B Neuropsychiatric Genetics” This study found that a genetic variation in SRD5A2 influences the severity of PTSD symptoms in a sex-specific manner among traumatized African-American males.
27 citations
,
February 2005 in “Journal of Cellular Biochemistry” This study found that rat male costochondral chondrocytes, unlike female chondrocytes, respond to testosterone through metabolism to dihydrotestosterone, which shows a maturation-state dependent effect in male growth plate cells.
1 citations
,
February 2023 in “Plants” This study reported that rice bran oil from the Thai rice variety BB4CMU showed potential in promoting melanin production and inhibiting steroid 5α-reductase, suggesting a natural option for hair revitalization.
39 citations
,
April 2007 in “Therapeutic Drug Monitoring” This study found that finasteride significantly alters urinary steroid profiles, complicating the detection of steroid abuse in doping-control analysis by potentially causing false-negative results.
1 citations
,
October 2020 in “Current Drug Discovery Technologies” This study investigated various synthesized 5-reductase inhibitors and found that compound 6 had the highest anti-androgenic activity and receptor affinity compared to finasteride, showing potential due to its improved efficacy and bioavailability for further research in treating lower urinary tract symptoms.
2 citations
,
September 2009 in “Hormone Molecular Biology and Clinical Investigation” This study found that low-dose finasteride treatment in men with premature androgenetic alopecia decreased levels of 5α-reduced steroids, which may be linked to increased depression symptoms.
14 citations
,
June 1995 in “The Journal of Clinical Endocrinology and Metabolism”
11 citations
,
January 2000 in “The Journal of Steroid Biochemistry and Molecular Biology” This study found that LY320236 is a competitive inhibitor of type I and a non-competitive inhibitor of type II steroid 5alpha-reductase, indicating its potential as a dual inhibitor with differing modes of activity.
34 citations
,
February 1992 in “The Journal of Clinical Endocrinology and Metabolism” In this study, the combination of finasteride and minoxidil significantly increased hair growth in balding male stumptail macaques compared to each drug alone.
37 citations
,
September 2018 in “Psychoneuroendocrinology” This study found that finasteride treatment in male rats led to enduring effects on depressive-like behavior, hippocampal neurogenesis and neuroinflammation, and gut microbiota composition after withdrawal.
4 citations
,
August 2021 in “Biomedicine & Pharmacotherapy” This review summarizes the association between 5-alpha reductase inhibitors and depression, discussing potential mechanisms such as neuroactive steroid alterations and neuroinflammation, but reports no new clinical results.
137 citations
,
March 2006 in “Cns Drug Reviews” This review explores finasteride's effects on neuroactive steroid levels and their potential influence on disorders like depression and alcohol withdrawal but reports no new clinical findings.
54 citations
,
November 1995 in “The Journal of Clinical Endocrinology & Metabolism” In this study, females with 5 alpha-reductase-2 deficiency exhibited decreased body hair, normal sebum production, and delayed menarche, suggesting a role for DHT in hair growth and menstrual function.