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research Metabolic study of androsta-1,4,6-triene-3,17-dione in horses using liquid chromatography/high resolution mass spectrometry
The study found that urine metabolites M1b or M4 are the best indicators of ATD use in horses, with detection possible up to 77 hours in urine and 28 hours in blood.
research Steroid 5α-reductases and 3α-hydroxysteroid dehydrogenases: key enzymes in androgen metabolism
Key enzymes control androgen levels, affecting hormone activity and potential treatments.
research Morphology of the testis and the epididymis in rats with dihydrotestosterone (DHT) deficiency.
DHT deficiency in rats reduces sperm content and affects testis structure over time.
research Oral Testosterone With and Without Concomitant Inhibition of 5α-Reductase by Dutasteride in Hypogonadal Men for 28 Days
Taking oral testosterone with or without dutasteride increases testosterone levels and could be an effective treatment for low testosterone.
research Testosterone metabolism in the skin. A review of its function in androgenetic alopecia, acne vulgaris, and idiopathic hirsutism including recent studies with antiandrogens
Testosterone affects hair loss, acne, and excessive hair growth, and antiandrogens can help treat these conditions.
research The effect of finasteride, a 5 alpha-reductase inhibitor, on scalp skin testosterone and dihydrotestosterone concentrations in patients with male pattern baldness
research 5 alpha-reductase and finasteride in pattern alopecia and acne.
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.
research Novel inhibitors of 5α-reductase
New research is needed to create better drugs that block the enzyme responsible for conditions like male baldness and prostate enlargement.
research Is 3α, 17β-androstanediol-glucuronide a diagnostic marker in women with androgenic manifestations?
3α, 17β-androstanediol-glucuronide is not a useful marker for androgen excess but may help monitor certain treatments.
research HPLC Profiling and Insilco studies of Chochurus olitoris (Jute) Leave Fractions against Steroid 5α-Reductase 2 (SRD5α2)
Jute leaves may help reduce DHT levels, potentially aiding in conditions like hair loss and prostate issues.
research Reproductive and Nonreproductive Actions of Testosterone
Testosterone is important for male sexual traits, reproduction, muscle and bone health, blood production, and metabolism, and works both directly and after being changed into other hormones.
research Evaluating 5 alpha reductase inhibitors for the treatment of male androgenic alopecia
Finasteride and dutasteride are effective in treating male hair loss but can cause sexual side effects and birth defects.
research 3α-androstanediol, but not testosterone, attenuates age-related decrements in cognitive, anxiety, and depressive behavior of male rats
3α-androstanediol helps reduce age-related cognitive and mood declines in male rats, unlike testosterone.
research Changes in Hair: Causative Factors
DHT, not testosterone, mainly affects hair growth and related conditions.
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 Metabolism of androgens by isolated human beard hair follicles
Human beard hair follicles change testosterone into other related hormones, but don't much change androstenedione into testosterone.
research Dihydrotestosterone and 5α-Reductase
Dihydrotestosterone and 5α-Reductase play a role in hair loss and prostate health, and finasteride can increase hair growth in men without affecting sperm production, but it doesn't work for postmenopausal women with hair loss.
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 A model for the turnover of dihydrotestosterone in the presence of the irreversible 5α-reductase inhibitors GI198745 and finasteride
Both drugs lower DHT levels, with GI198745 being more effective.
research Evolution, classification, structure, and functional diversification of steroid 5α-reductase family in eukaryotes
Steroid 5α-reductase evolved from protists and diversified in eukaryotes, with specific roles in mammals and plants.
research Anti-androgenetic effect of diphlorethohydroxycarmalol on testosterone-induced hair loss by inhibiting 5α-reductase and promoting Wnt/β-catenin signaling pathway in human dermal papilla cells
Diphlorethohydroxycarmalol may help treat hair loss better than current medications.
research Effects of Finasteride (MK-906), a 5α-Reductase Inhibitor, on Circulating Androgens in Male Volunteers*
Finasteride safely lowers DHT levels without affecting testosterone.
research Structural basis for the catalysis and inhibition of human steroid 5α‐reductase 2
The research gives new understanding on how human steroid 5α-reductases work and how drugs like finasteride inhibit them, which could help in creating new drugs.
research Comparative GC-MS Based In vitro Assays of 5α-Reductase Activity Using Rat Liver S9 Fraction
The S9 fraction with GC-IDMS is effective for measuring 5α-reductase activity.
research The Role of Non-Aromatizable Testosterone Metabolite in Metabolic Pathways
Normal levels of DHT can reduce belly fat and increase muscle, but too much can lead to hair loss, prostate issues, and possibly heart disease.
research Synthesis and Pharmacological Evaluation of New 16-Methyl Pregnane Derivatives.
New pregnane derivatives were more effective than finasteride at inhibiting a key enzyme for male pattern baldness.
research Experimental Assessment of 3-meta-Pyridine-1,2,4-Oxadiazole Deoxycholic Acid Derivative as a Prototype of 5-α-Reductase Inhibitors in silico and in vivo Models
The new compound is a promising, less toxic alternative to finasteride for treating prostate issues.
research Synthesis and biological evaluation of 3-tetrazolo steroidal analogs: Novel class of 5α-reductase inhibitors
3-tetrazolo steroidal analogs can strongly inhibit the enzyme linked to hair loss.