research Steroid 5α-reductases and 3α-hydroxysteroid dehydrogenases: key enzymes in androgen metabolism
Key enzymes control androgen levels, affecting hormone activity and potential treatments.
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630-660 / 1000+ resultsresearch Functional characterization and unraveling the structural determinants of novel steroid hydroxylase CYP154C7 from Streptomyces sp. PAMC26508
CYP154C7 enzyme can effectively modify steroids and is promising for commercial use.
research Expression and Activity Assay of Human Steroid 5 Alpha-Reductase Type II in CHO Cells
Finasteride effectively inhibits the enzyme steroid 5 alpha-reductase II.
research Roles of Type 10 17beta-Hydroxysteroid Dehydrogenase in Intracrinology and Metabolism of Isoleucine and Fatty Acids
This enzyme helps metabolize fatty acids and isoleucine, and could be key in treating neurological diseases and certain cancers.
research Improved 2α-Hydroxylation Efficiency of Steroids by CYP154C2 Using Structure-Guided Rational Design
Mutants of CYP154C2 enzyme significantly improved steroid conversion efficiency.
research Retinoid-mediated stimulation of steroid sulfatase activity in myeloid leukemic cell lines requires RARα and RXR and involves the phosphoinositide 3-kinase and ERK-MAP kinase pathways
Retinoids increase steroid sulfatase activity in leukemia cells through RARα/RXR and involves certain pathways like phosphoinositide 3-kinase and ERK-MAP kinase.
research Regulation of the metabolic phenotype of human hepatocytes by glucocorticoids and androgens
Glucocorticoids reduce fat production in liver cells, while androgens increase it in females; manipulating certain enzymes can influence these effects.
research Determination Method for Steroid 5α-Reductase Activity Using Liquid Chromatography/Atmospheric Pressure Chemical Ionization–Mass Spectrometry
A new method was developed to measure and assess the activity and inhibition of the enzyme steroid 5α-reductase.
research 5α-reduction of epitestosterone is catalysed by human SRD5A1 and SRD5A2 and increases androgen receptor transactivation
5α-reductases increase epitestosterone's effect on androgen receptors.
research Cutaneous hydroxystereoid dehydrogenases and rat-hair-cycle
Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.
research Determination of rat 5α-reductase type 1 isozyme activity and its inhibition by novel steroidal oxazolines
New steroidal compounds moderately block an enzyme related to testosterone conversion, less effectively than finasteride.
research Human Osteoblast-Like Cells Express Predominantly Steroid 5α-Reductase Type 1
Human bone cells mainly produce a type 1 enzyme that may help regulate bone health.
research Testosterone, cytochrome P450, and cardiac hypertrophy
Heart-specific steroid metabolism is crucial in cardiac hypertrophy.
research 5α-Reductase Type 2 Regulates Glucocorticoid Action and Metabolic Phenotype in Human Hepatocytes
Manipulating 5α-reductase type 2 can affect liver fat production and glucocorticoid effects.
research Molecular interactions of natural and synthetic steroids in female hamsters’ flank organs
Testosterone, progesterone, and levonorgestrel change enzyme levels related to fat production in hamster skin, which could affect skin oil and acne.
research Steroid Sulfatase Deficiency and Androgen Activation Before and After Puberty
In STSD patients, the body compensates for low androgen levels by increasing another enzyme's activity.
research PSAT217 Estrogen Deficiency as a Cause of Decreased 1- alpha - hydroxylase Activity
Estrogen deficiency can reduce the enzyme activity needed to activate vitamin D.
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 In Vitro Main Pathways of Steroid Action in Cultured Hair Follicle Cells: Vascular Approach
Steroids, particularly estrogens and 5α-reductase inhibitors, affect blood vessel-related hair growth processes in hair follicle cells.
research Activity of steroid 4 and derivatives 4a–4f as inhibitors of the enzyme 5α-reductase 1
Compounds 4, 4b, and 4c effectively inhibit an enzyme linked to testosterone conversion without significant toxicity.
research Synthesis and 5α-Reductase Inhibitory Activity of C21 Steroids Having 1,4-diene or 4,6-diene 20-ones and 4-Azasteroid 20-Oximes
Three specific 4-azasteroid-2-oximes showed strong enzyme inhibition, but less than finasteride.
research Pre-receptor regulation of the androgen receptor
Two enzymes regulate androgen receptor activity, affecting treatments for androgen insufficiency and benign prostatic hyperplasia.
research Oxidative Activity of the Type 2 Isozyme of 17β-Hydroxysteroid Dehydrogenase (17β-HSD) Predominates in Human Sebaceous Glands
The enzyme 17β-HSD type 2 mainly performs oxidation in human sebaceous glands, which may help protect against acne.
research Androgen receptor activation integrates complex transcriptional effects in osteoblasts, involving the growth factors TGF-β and IGF-I, and transcription factor C/EBPδ
DHT affects bone growth by altering gene activity in osteoblasts, potentially complicating steroid use.
research The enzyme and inhibitors of 4-ene-3-oxosteroid 5α-oxidoreductase
Inhibitors of the enzyme 5 alpha-reductase could potentially treat disorders like prostate cancer and baldness.
research Steroidogenesis inhibitors alter but do not eliminate androgen synthesis mechanisms during progression to castration-resistance in LNCaP prostate xenografts
Steroidogenesis inhibitors change but don't stop androgen production in prostate cancer.
research Steroid Hormones
Steroid hormones are crucial for body functions and have various medical uses, but their misuse can lead to dependence.
research Steroid 5α-Reductase Inhibitors
New steroidal compounds could be effective for treating conditions related to 5α-reductase enzyme activity.
research Synthesis and Evaluation of 2‘-Substituted 4-(4‘-Carboxy- or 4‘-carboxymethylbenzylidene)-N-acylpiperidines: Highly Potent and in Vivo Active Steroid 5α-Reductase Type 2 Inhibitors
Compounds 15, 20, and 25 are strong inhibitors of human steroid 5α-reductase type 2.
research Equine 5α-reductase activity and expression in epididymis
The equine epididymis mainly uses type 1 5α-reductase, and both finasteride and dutasteride can inhibit its activity.