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.
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research The Androgen Receptor and Its Use in Biological Assays: Looking Toward Effect-Based Testing and Its Applications
Scientists have developed a new method to detect steroid abuse in athletes using cell-based tests, which could be the future of anti-doping methods.
research Genetic regulation of the androgen receptor—A study of testicular feminization in the mouse
The study concludes that a genetic mutation in TFM mice leads to reduced androgen receptor activity, affecting the body's response to male hormones.
research Note on Isocholesterol, Coprosterol and the Classification of the Sterols
Isocholesterol is a confirmed and recognized sterol.
research Development of a Liquid Chromatography/Mass Spectrometry-Based Inhibition Assay for the Screening of Steroid 5-α Reductase in Human and Fish Cell Lines
A new method was created to test the effectiveness of Dihydrotestosterone (DHT) inhibitors, like finasteride and dutasteride, in human and fish cells. The results showed fish cells are more sensitive to these treatments, and dutasteride works better than finasteride in all tested cells.
research Intermolecular NH2-/Carboxyl-terminal Interactions in Androgen Receptor Dimerization Revealed by Mutations That Cause Androgen Insensitivity
Mutations at Val-889 and Arg-752 disrupt key interactions in the androgen receptor, affecting its function.
research OR20-01 Machine Learning-based Steroid Metabolome Analysis In Women With Polycystic Ovary Syndrome Reveals Three Distinct Androgen Excess Subtypes With Different Metabolic Risk Profiles.
Machine learning identified three unique subtypes of androgen excess in women with PCOS, each with different metabolic risks.
research Modulation of Androgen Receptor Transcriptional Activity
Androgen receptor activity is influenced by hormones, co-factors, modifications, and mutations.
research An estrogen receptor pathwayregulates thetelogen-anagen hair follicle transition andinfluences epidermal cell proliferation (epidermis/estrogen/keratinocyte/differentiation/mesenchymal
The estrogen receptor pathway controls hair growth cycles and affects skin cell growth.
research Discovery of Nonsteroidal Androgens
Scientists found new nonsteroidal compounds that can act like natural male hormones and might help treat male fertility and hormone issues.
research Androgen receptor-mediated gene activation in prostate cancer cells
Androgen receptors help prostate cancer cells grow and resist drugs.
research Enzymes
Enzymes play crucial roles in metabolism, health, and disease management.
research Design of Liposome Formulations for CRISPR/Cas9 Enzyme Immobilization: Evaluation of 5-Alpha-Reductase Enzyme Knockout for Androgenic Disorders
New liposome treatment successfully delivers CRISPR to deactivate a key enzyme in androgen-related disorders.
research Glia-derived steroids modulate epileptogenesis in a model of temporal lobe epilepsy
Neurosteroids from glia cells help control seizure development in epilepsy.
research Effects of finasteride on steroid production and gene expression in male fathead minnow (Pimephales promelas) and medaka (Oryzias latipes)
Finasteride reduces DHT levels and affects gene expression in fish, similar to its effects in humans.
research Mechanisms of testosterone action
Testosterone works in different ways, including direct interaction with its receptor, conversion to other hormones for specific effects on genitalia, hair, bones, and muscle, and changes in body fat and sexual function when low.
research Isotope Dilution-Based Targeted and Nontargeted Carbonyl Neurosteroid/Steroid Profiling
Researchers created a new method to measure brain steroids, finding higher levels of certain steroids and changes due to a drug.
research 24-Hydroxycholesterol suppresses steroid 5α-reductase-catalyzed conversion in human glioblastoma cell lines: A novel link between brain cholesterol homeostasis and androgen metabolism
24-Hydroxycholesterol reduces DHT formation in brain cancer cells, linking cholesterol and hormone metabolism.
research Preparation of3H-labelled testosterone metabolites
The conclusion is that tritium-labeled testosterone metabolites can be made and are better converted into dihydrotestosterone in skin cells than in prostate tissue.
research Finasteride blocks progesterone synthesis in MA-10 Leydig tumor cells
research Rare and common genetic determinants of metabolic individuality and their effects on human health
Genetic variations greatly affect individual metabolism and can impact health and disease risk.
research Androgen receptor inhibits the hair follicle induction potential of dermal papilla cells by binding with Tcf4 at the A574 binding site
research Stereocontrolled synthesis of all eight stereoisomers of the putative anti-androgen cyoctol
Scientists made all eight versions of a compound called cyoctol, but found it's not an anti-androgen and it fully breaks down in the skin.
research Testosterone metabolite nonessential for androgen effects
The body's change of testosterone into DHT is not necessary for testosterone's muscle and sexual effects.
research Prostaglandin D2 Uses Components of ROS Signaling to Enhance Testosterone Production in Keratinocytes
Prostaglandin D2 increases testosterone production in skin cells through a process involving reactive oxygen species, and antioxidants may help treat hair loss.
research Cortisol Enhances the Expression of mac25/Insulin-Like Growth Factor-Binding Protein-Related Protein-1 in Cultured Osteoblasts**This work was supported by NIDDK Grant DK-45227 and a scholarship (to R.C.P.) from Fundacao Coordenacao de Aperfeicoa mento de Pessoal de Nivel Superior (CAPES), Universidade de Sao Paulo (Sao Paulo, Brazil).
Cortisol increases a specific protein in bone cells, which may help explain its negative effects on bone.
research Human androgenic steroids affect growth of dermatophytes in vitro
Androgenic steroids can slow down or stop the growth of certain skin fungi.
research Effects of steroid hormones on the expression of Ca2+ activated K+ channels in in vitro pituitary cells of Atlantic cod (Gadus morhua)
Steroid hormones may affect sexual maturation in cod by altering certain KCa channel expressions.
research Effect of a novel steroid (PM-9) on the inhibition of 5α-reductase present in Penicillium crustosum broths
PM-9 and finasteride effectively inhibit the enzyme that converts testosterone to DHT.
research Hormonal status of male reproductive system: androgens and estrogens in the testis and epididymis. In vivo and in vitro approaches.
Androgens and estrogens are crucial for male reproductive health, affecting hormone levels and tissue function.