research Synthesis of N-Substituted 3-Oxo-17b- carboxamide-4-aza-5a-androstanes and the Tautomerism of 3-Oxo-4-aza-5-androstenes
Researchers made two new compounds that could be used for medicine.
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research Crystal Structure of 3-Oxo-4-Aza-5-Alpha-Androstone-17 β-Tert-Butyl Carboxamide with an O···H–(C, N) Acceptor Four-Center Hydrogen Bond
The research shows that hydrogen bonds greatly affect the crystal structure of a Finasteride derivative.
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.
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 A high-performance liquid chromatography–tandem mass spectrometry assay of the androgenic neurosteroid 3α-androstanediol (5α-androstane-3α,17β-diol) in plasma
Testosterone increases 3α-androstanediol levels, which can be blocked by finasteride.
research Three-Month Treatment With a Long-Acting Gonadotropin-Releasing Hormone Agonist of Patients With Benign Prostatic Hyperplasia: Effects on Tissue Androgen Concentration, 5α-Reductase Activity and Androgen Receptor Content*
A three-month treatment with a GnRH agonist significantly lowered androgen levels and 5α-reductase activity in men with benign prostatic hyperplasia.
research Altered Hormone and Bioactive Lipid Plasma Profile in Rodent Models of Polycystic Ovarian Syndrome Revealed by Targeted Mass Spectrometry
Rodent models of PCOS show some hormone changes similar to humans, but also have key differences.
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 Cyclohex-1-ene Carboxylic Acids: Synthesis and Biological Evaluation of Novel Inhibitors of Human 5α Reductase
Scientists made new substances that can block an enzyme linked to prostate issues and hair loss, with potential for creating a new treatment.
research Consequences of steroid-5α-reductase deficiency and inhibition in vertebrates
Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.
research Selective induction of apoptosis in the hamster flank sebaceous gland organ by a topical liposome 5-α-reductase inhibitor: A treatment strategy for acne
A topical treatment safely and effectively reduced acne by causing targeted cell death in sebaceous glands without side effects.
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 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 Steroid 5α-Reductase as a Novel Therapeutic Target for Schizophrenia and Other Neuropsychiatric Disorders
S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.
research Receipt of 5-Alpha Reductase Inhibitors Before Radical Cystectomy: Do They Render High-Grade Bladder Tumors Less Aggressive?
Taking 5-Alpha Reductase Inhibitors before bladder removal surgery might make high-grade bladder tumors less aggressive.
research Increased Scalp Skin and Serum 5a-Reductase Reduced Androgens in a Man Relevant to the Acquired Progressive Kinky Hair Disorder and Developing Androgenetic Alopecia
Reduced androgens linked to kinky hair disorder and hair loss; 5a-reductase inhibitors may help.
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 Dihydrotestosterone Stimulates 5a-Reductase Activity in Pubic Skin Fibroblasts*
Dihydrotestosterone increases the activity of an enzyme in pubic skin cells that converts testosterone to dihydrotestosterone.
research Three-Dimensional Proteome-Wide Scale Screening for the 5-Alpha Reductase Inhibitor Finasteride: Identification of a Novel Off-Target
Finasteride may affect PNMT, causing side effects.
research Inhibition of 5α Reductase Impairs Cognitive Performance, Alters Dendritic Morphology and Increases Tau Phosphorylation in the Hippocampus of Male 3xTg-AD Mice
Blocking 5α-reductase can harm memory and brain structure, and increase harmful brain changes in male mice used for Alzheimer's disease research.
research Adverse Side Effects of 5α‐Reductase Inhibitors Therapy: Persistent Diminished Libido and Erectile Dysfunction and Depression in a Subset of Patients
Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.
research The Impact of the 5α-Reductase Inhibitors (5α-RIs) on Male Sexual Function and Psychological Well-Being
5α-reductase inhibitors can cause serious and possibly lasting sexual and psychological side effects.
![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 Physiopathological role of the enzymatic complex 5α-reductase and 3α/β-hydroxysteroid oxidoreductase in the generation of progesterone and testosterone neuroactive metabolites
The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.
research Idiopathic Hirsutism*
The document concludes that more research is needed to understand excessive hair growth in women with normal hormone levels and regular ovulation.
research Serum C-19 steroid sulphates in females with clinical hyperandrogenism
Women with hyperandrogenism have higher androgen levels and lower SHBG, which may contribute to conditions like excessive hair growth and early puberty.
research Endocrine treatment of benign prostatichypertrophy: Current concepts
New hormonal treatments for enlarged prostate show promise for safer, effective non-surgical options.
research Steroid Hormones
Steroid hormones are crucial for body functions and have various medical uses, but their misuse can lead to dependence.
research 5α-Reductase type 2 gene variant associations with prostate cancer risk, circulating hormone levels and androgenetic alopecia
A49T gene variant linked to higher prostate cancer risk, lower hormone levels, and slightly reduced balding risk.
research PLASMA C19 STEROID SULPHATE LEVELS AND INDICES OF ANDROGEN BIOAVAILABILITY IN FEMALE PATTERN ANDROGENIC ALOPECIA
Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.