research Hairless Modulates Ligand-Dependent Activation of the Vitamin D Receptor-Retinoid X Receptor Heterodimer
Hairless protein can both repress and activate vitamin D receptor functions, affecting gene regulation.
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research The effect of spironolactone on genital skin 5α-reductase activity
Spironolactone reduces the enzyme activity that converts testosterone to DHT, helping treat excessive hair growth in women.
research Urinary steroid metabolome shows adrenal, gonadal, and neuroactive steroid dysregulation in adolescents with depression
Depressed teens have different steroid levels in urine, which may help identify and treat them.
research 138 Characterization of xenobiotic metabolizing enzymes of a reconstructed human epidermal model from adult hair follicles
The reconstructed skin model from hair follicles functions like human skin in processing chemicals and can be used to test ingredient safety.
research Identification of xenobiotics interfering with 5 α -reductase (SRD5A2) activity
MK-0773 is a moderate inhibitor of the SRD5A2 enzyme.
research Sexual dimorphism of growth plate prehypertrophic and hypertrophic chondrocytes in response to testosterone requires metabolism to dihydrotestosterone (DHT) by steroid 5‐alpha reductase type 1
Male cells need DHT to respond to testosterone, while female cells do not.
research Defects in Androgen Biosynthesis Causing 46,XY Disorders of Sexual Development
Genetic defects in androgen production are linked to male developmental disorders and are improving treatment understanding.
research The neurosteroid metabolite of progesterone, 3α‐OH‐dihydroprogesterone (3α‐OH‐DHP), is required for attenuated baroreflex mediated sympathoexcitation in pregnancy
3α‐OH‐DHP is essential for reducing nerve activity related to blood pressure control during pregnancy.
research MK-386, an Inhibitor of 5α-Reductase Type 1, Reduces Dihydrotestosterone Concentrations in Serum and Sebum without Affecting Dihydrotestosterone Concentrations in Semen1
MK-386 lowers DHT in blood and skin but not in semen.
research Clobetasol/minoxidil
research Biological Profile of Cortexolone 17a-Propionate (CB-03-01), a New Topical and Peripherally Selective Androgen Antagonist
CB-03-01 is a promising skin cream for treating hormone-related skin problems without causing harmful body-wide effects.
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 Gender-specific alteration of steroid metabolism and its impact on viral replication in a mouse model of hepatitis B virus infection
Hepatitis B virus alters steroid hormones in male mice, reducing dihydrotestosterone to inhibit viral replication.
research 3,3-Diphenylpentane skeleton as a steroid skeleton substitute: Novel inhibitors of human 5α-reductase 1
A new compound effectively inhibits human 5α-reductase 1.
research In vitro [7-3H]-testosterone metabolism by the rat ventral prostate—Effect of some exogenous compounds
research 5α-Reductases in Human Physiology: An Unfolding Story
Enzymes called 5α-reductases have many body functions and need more research to safely use inhibitors.
research Inhibiting Biosynthesis and/or Metabolism of Progestins in the Ventral Tegmental Area Attenuates Lordosis of Rats in Behavioural Oestrus
Blocking certain brain processes reduces mating behavior in female rats.
research Central 5-alpha reduction of testosterone is required for testosterone's inhibition of the hypothalamo-pituitary–adrenal axis response to restraint stress in adult male rats
Testosterone needs to be converted to DHT to reduce stress response in male rats.
research Steroid Chemistry and Hormone Controls during the Hair Follicle Cycle
Differences in enzyme activity and androgen receptors in hair follicles may explain why hair loss appears differently in men and women.
research Luteinizing Hormone and Human Chorionic Gonadotropin Decrease Type 2 5α-Reductase and Androgen Receptor Protein Levels in Women’s Skin
LH and hCG reduce certain protein levels in women's skin.
research The Modulation of Aromatase and Estrogen Receptor Alpha in Cultured Human Dermal Papilla Cells by Dexamethasone: A Novel Mechanism for Selective Action of Estrogen via Estrogen Receptor Beta?
Dexamethasone may influence hair growth by altering estrogen receptor activity in hair cells.
research Nonclassic 21-hydroxylase deficiency
Nonclassic 21-hydroxylase deficiency is a common, treatable genetic disorder causing reversible symptoms like acne and hair loss.
research Design, synthesis and biological evaluation of novel androst-3,5-diene-3-carboxylic acid derivatives as inhibitors of 5α-reductase type 1 and 2
New chemical compounds were made that effectively block an enzyme linked to prostate growth.
research Species Differences in Prostatic Steroid 5α-Reductases of Rat, Dog, and Human
Different animals have unique versions of the enzyme that changes testosterone into another hormone, which is important for creating effective treatments for prostate and hair loss conditions.
research Crystal Structure and Synthesis of 17.ALPHA.-Acetoxy-6,7-epoxypregn-4-ene-3,20-dione
A new compound was made that might help treat diseases related to male hormones.
research The diagnosis of nonclassic congenital adrenal hyperplasia due to 21-hydroxylase deficiency, based on serum basal or post-ACTH stimulation 17-hydroxyprogesterone, can lead to false-positive diagnosis
Using 17-hydroxyprogesterone levels to diagnose nonclassic congenital adrenal hyperplasia can result in many incorrect diagnoses.
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 Estrogen regulates the expression of retinoic acid synthesis enzymes and binding proteins in mouse skin
Estrogen affects how vitamin A is processed in mouse skin, which may impact acne treatment, hair growth, and skin defense.
research Synthesis and Study of Some 17a-aza-D-homo Steroids as 5α-Reductase Inhibitors
The research found that compound 6, a newly created steroid, is more effective at inhibiting 5α-reductase (an enzyme) than current treatments, suggesting it could be a better option for treating urinary tract symptoms in men.
research Urinary steroids in women with androgenic alopecia
Women with hair loss had higher levels of certain hormones, suggesting a link to a condition like PCOS.