research Early embryonic exposure of freshwater gastropods to pharmaceutical 5-alpha-reductase inhibitors results in a surprising open-coiled “banana-shaped” shell
Certain drugs change freshwater snail shells to a "banana" shape.
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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.
research Sexual Problems of Men With Androgenic Alopecia Treated With 5-Alpha Reductase Inhibitors
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.
research 5 Alpha - Reductase and Metabolic Syndrome in PCOS Patients
A higher testosterone/dihydrotestosterone ratio in PCOS patients may indicate worse metabolic health.
research Comments concerning the real risk of sexual adverse events secondary to the use of 5-ARIs
The document concludes that the risk of sexual side effects from 5-alpha-reductase inhibitors is low and often temporary, but more research is needed on potential permanent effects.
research Association of Suicidality and Depression With 5α-Reductase Inhibitors
Men over 66 taking medication for prostate enlargement have a higher risk of depression and self-harm, especially in the first 18 months of treatment.
research Finasteride is the main inhibitor of 5α-reductase activity in microdissected dermal papillae of human hair follicles
Finasteride potentially treats hair loss by reducing DHT production.
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 Effects of PNU157706, a Dual 5α-Reductase Inhibitor, on Rat Epididymal Sperm Maturation and Fertility1
PNU157706 reduced rat sperm movement and fertility without affecting offspring health.
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 Azasteroids as inhibitors of testosterone 5α-reductase in mammalian skin
Certain 4-azasteroids are effective at blocking the enzyme that processes testosterone in human skin and could help treat acne, excessive hair growth, and male pattern baldness.
research Plasma androsterone/epiandrosterone sulfates as markers of 5α-reductase activity: Effect of finasteride in normal men
Finasteride effectively lowers specific hormone levels, helping monitor treatment progress.
research Discovery of Natural Steroid 5 Alpha-Reductase Inhibitors
Natural herbal compounds might treat certain medical conditions by reducing DHT levels, but more research is needed to confirm their effectiveness and safety.
research A role for steroid 5 alpha-reductase 1 in vascular remodeling during endometrial decidualization
The enzyme 5α-reductase type 1 is important for blood vessel development and fertility in the uterus.
research A Role for Steroid 5 alpha-reductase 1 in Vascular Remodelling During Endometrial Decidualisation
The enzyme 5α-reductase is important for proper blood vessel development during the fertility-related transformation of the uterus lining.
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 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 Do 5α-Reductase Inhibitors Raise Circulating Serum Testosterone Levels? A Comprehensive Review and Meta-Analysis to Explaining Paradoxical Results
5α-Reductase inhibitors do not consistently increase testosterone levels in the blood.
research Structure of human type II 5 alpha-reductase gene
The human type II 5α-reductase gene has a specific structure important for understanding certain medical conditions.
research Evaluation of the 5α-reductase inhibitor finasteride on reproduction and gonadal development in medaka, Oryzias latipes
Finasteride negatively affects fish reproduction and gonadal development.
research The Dark Side of 5α-Reductase Inhibitors' Therapy: Sexual Dysfunction, High Gleason Grade Prostate Cancer and Depression
5α-reductase inhibitors can cause sexual problems, higher risk of aggressive prostate cancer, and depression.
research Evidence for Increased 5α-Reductase Activity During Early Childhood in Daughters of Women With Polycystic Ovary Syndrome
Young girls whose mothers have PCOS may have higher activity of a specific enzyme that could lead to developing PCOS later.
research Outcome of long-term treatment with the 5α-reductase inhibitor finasteride in idiopathic hirsutism: clinical and hormonal effects during a 1-year course of therapy and 1-year follow-up
Finasteride effectively reduces hair growth in women with idiopathic hirsutism, but requires careful contraception during treatment.
research Finasteride, a Type 2 5α-reductase inhibitor, in the treatment of men with androgenetic alopecia
Finasteride effectively treats male hair loss, improving growth and density.
research Finasteride: The First 5α-Reductase Inhibitor
Finasteride treats enlarged prostate and baldness, but may cause limited urinary improvement and sex-related side effects.
research Activity of type 1 5α-reductase is greater in the follicular infrainfundibulum compared with the epidermis
The enzyme type 1 5α-reductase is more active in the hair follicle's lower part than in the skin's outer layer.
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 Kinetic analysis of LY320236: competitive inhibitor of type I and non-competitive inhibitor of type II human steroid 5α-reductase
LY320236 is a strong blocker of two enzymes that change testosterone into dihydrotestosterone and might help treat conditions related to male hormones.
research Clinical use of 5α-reductase inhibitors
Finasteride effectively treats hair loss and enlarged prostate in men, with mild side effects.
research Expression of type 1 5α-reductase and metabolism of testosterone in reconstructed human epidermis (SkinEthic®): a new model for screening skin-targeted androgen modulators
The study created a new method to test drugs that affect hormone processing in skin.