research Synthesis of phenanthridin-3-one derivatives: Non-steroidal inhibitors of steroid 5-α-reductase
New chemicals were made that can block an enzyme linked to hair loss, prostate growth, and acne.
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research Synthesis and in Vitro Evaluation of 4-Substituted N-(1,1-Dimethylethyl)-3-oxo-4-androstene-17.beta.-carboxamides as 5.alpha.-Reductase Inhibitors and Antiandrogens
The new compounds moderately block a specific enzyme and strongly counteract a male hormone, suggesting potential for treating certain male-related health conditions.
![The Synthesis of (−)-4-Methyl-8-Chloro-Trans-1,2,3,4,4a,5,6,10b-Octahydrobenzo-[f]-Quinolin-3-One-[3-14C] (LY300502-14C) via a Circuitous Route](/images/research/73bab8dc-bdf0-45e3-8ef7-73d0d4b93cb1/small/21074.jpg)
research The synthesis of (−)-4-methyl-8-chloro-trans-1,2,3,4,4a,5,6,10b-octahydrobenzo-[f]-quinolin-3-one-[3-14C] (LY300502-14C]) via a circuitous route
Scientists made a carbon-14 labeled version of a drug with a 48% yield and over 99% purity.
research Bacillus/Trapa japonica Fruit Extract Ferment Filtrate enhances human hair follicle dermal papilla cell proliferation via the Akt/ERK/GSK-3β signaling pathway
The extract from Bacillus/Trapa japonica fruit helps increase hair growth and could be a potential treatment for hair loss.
research Enzymology of the hair follicle.
Hair follicles convert androgens, affecting hair loss patterns.
research Synthesis and biological evaluation of esters of 16-formyl-17-methoxy-dehydroepiandrosterone derivatives as inhibitors of 5α-reductase type 2
Certain derivatives are more effective 5α-reductase type 2 inhibitors than finasteride.
research Negative Impact of Testosterone Deficiency and 5α-Reductase Inhibitors Therapy on Metabolic and Sexual Function in Men
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.
research Human type 3 5α-reductase is expressed in peripheral tissues at higher levels than types 1 and 2 and its activity is potently inhibited by finasteride and dutasteride
Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.
research Rat steroid 5α-reductase kinetic characteristics: Extreme pH-dependency of the type II isozyme in prostate and epididymis homogenates
The activity of a specific rat enzyme in the prostate and epididymis is highly dependent on the acidity level.
research LY191704: a selective, nonsteroidal inhibitor of human steroid 5 alpha-reductase type 1.
LY191704 is a compound that effectively blocks a specific enzyme involved in hormone conversion and could help treat enlarged prostate and hair loss.
research Nonsteroidal inhibitors of human type I steroid 5-.alpha.-reductase
New compounds called benzoquinolinones may treat conditions linked to excess DHT.
![Benzo[c]quinolizin-3-ones: A Novel Class of Potent and Selective Nonsteroidal Inhibitors of Human Steroid 5α-Reductase 1](/images/research/ff6e6cbe-cb9c-4d11-87ef-671d28ffd4fa/small/15506.jpg)
research Benzo[c]quinolizin-3-ones: A Novel Class of Potent and Selective Nonsteroidal Inhibitors of Human Steroid 5α-Reductase 1
Benzo[c]quinolizin-3-ones are effective nonsteroidal inhibitors of human steroid 5α-reductase 1.
research Clinical dose ranging studies with finasteride, a type 2 5α-reductase inhibitor, in men with male pattern hair loss
Finasteride effectively treats male pattern hair loss with a 1 mg daily dose.
research Inhibitors of 5α -Reductase Type I in LNCaP Cells from the Roots of Angelica koreana
Compounds from Angelica koreana roots, especially osthenol, could be effective for treating conditions like prostate disease and hair loss.
research Genetic analysis of 5 α reductase type 2 enzyme in relation to oxidative stress in cases of androgenetic alopecia in a sample of egyptian population
5α reductase type 2 enzyme mutation and oxidative stress may increase androgenetic alopecia risk in Egyptians.
![Synthesis and In Vitro Study of 17β-[N-Ureylene-N,N′-Disubstituted]-4-Methyl-4-Aza-5α-Androstan-3-Ones as Selective Inhibitors of Type I 5α-Reductase](/images/research/d19df8a7-8de6-4430-8a0d-4ffa1f502985/small/15608.jpg)
research Synthesis and in vitro study of 17β-[N-ureylene-N,N′-disubstituted]-4-methyl-4-aza-5α-androstan-3-ones as selective inhibitors of type I 5α-reductase
New compounds were made that effectively block a specific enzyme related to androgen conditions.
research Pharmacokinetic parameters and mechanisms of inhibition of rat type 1 and 2 steroid 5α-reductases: determinants for different in vivo activities of GI198745 and finasteride in the rat 3 3Abbreviations: r5AR1, rat 5α-reductase 1; r5AR2, rat 5α-reductase 2; and DHT, dihydrotestosterone.
GI198745 is more potent and longer-lasting than finasteride, potentially better for treating hair loss.
research Selective non-steroidal inhibitors of 5α-reductase type 1
Selective non-steroidal inhibitors of 5α-reductase type 1 can help treat DHT-related disorders.
research 5-α-Reductase type 2 deficiency: is there a genotype-phenotype correlation? A review
No consistent link between genotype and phenotype in 5-α-Reductase type 2 deficiency.
research Longitudinal clinical course in patients with 5α-reductase type 2 deficiency treated with testosterone and dihydrotestosterone during infancy and puberty
Testosterone and dihydrotestosterone treatments can help with penile growth in males with 5α-reductase type 2 deficiency, with dihydrotestosterone being more effective in infancy.
research 102 Methylation of CpG islands in promoter of type 2 5-α reductase and implications of finasteride resistance for BPH therapy
Methylation in specific gene region causes finasteride resistance in some BPH patients.
research Avicequinone C Isolated from Avicennia marina Exhibits 5α-Reductase-Type 1 Inhibitory Activity Using an Androgenic Alopecia Relevant Cell-Based Assay System
Avicequinone C, a compound found in the Avicennia marina plant, can reduce hair loss by inhibiting a hormone linked to androgenic alopecia.
research Changes in serum free testosterone, sleep patterns, and 5‐alpha‐reductase type I activity influence changes in sebum excretion in female subjects
Sleep, testosterone levels, and a specific enzyme activity affect skin oil production in women.
research In Vivo Time-Dependent Inhibition of Human Steroid 5a-Reductase by Finasteride
Finasteride poorly inhibits type 1 5AR, affecting its effectiveness.
research Novel prospectives of shikimic acid and Prunus mume extract for enhancing bioactivity on 5α-reductase and stability in cosmetic patches for acne treatment
Combining shikimic acid and Prunus mume extract may effectively treat acne naturally.
research Overexpression of aldo-keto reductase 1C3 (AKR1C3) in LNCaP cells diverts androgen metabolism towards testosterone resulting in resistance to the 5α-reductase inhibitor finasteride
Too much AKR1C3 enzyme causes resistance to finasteride by increasing testosterone.
research 5-Alpha-Reductase Inhibitors and Combination Therapy
Finasteride and dutasteride are effective for long-term treatment of enlarged prostates but have sexual side effects and a risk of high-grade prostate cancer.
research The 5 Alpha-Reductase Isozyme Family: A Review of Basic Biology and Their Role in Human Diseases
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.
research Natural Product-Inspired Bis(trifluoromethyl) Phenyl Hydroxycinnamate Derivatives as Promising Nonsteroidal Inhibitors of Human Steroid 5α-Reductase Type-1: Synthesis, In Vitro, and In Silico Studies
New compounds show promise as nonsteroidal treatments for hair loss.
![Synthesis and Activity of 8-Substituted Benzo[c]quinolizin-3-ones as Dual Inhibitors of Human 5α-Reductases 1 and 2](/images/research/efc54340-66d6-4f27-9930-045ac023f903/small/15248.jpg)
research Synthesis and activity of 8-substituted benzo[c]quinolizin-3-ones as dual inhibitors of human 5α-reductases 1 and 2
New compounds were made that effectively block enzymes related to prostate issues and hair loss.