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This study found that the pH dependency of rat steroid 5α-reductase type II isozyme significantly affects its kinetic properties, including Vmax and Km, suggesting past discrepancies in literature may arise from these pH variances during assays.

This article discusses the medical management of male pattern hair loss and reports no new clinical findings.

This study explored how modifying the 8-substituent of 8-bromobenzoquinolinone affects its selectivity in inhibiting both 5 alpha-reductase isozymes in the scalp.

This article reviews mechanisms by which herbal ingredients may stimulate or inhibit hair growth, and it reports no new clinical findings while suggesting potential for developing hair loss treatments.

This study found that LY320236 is a competitive inhibitor of type I and a non-competitive inhibitor of type II steroid 5alpha-reductase, indicating its potential as a dual inhibitor with differing modes of activity.

This study found that sebaceous glands predominantly exhibit oxidative activity of the type 2 17β-hydroxysteroid dehydrogenase isozyme, which is not inhibited by 13-cis retinoic acid.

People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.

This study found that both finasteride and dutasteride act as slow, time-dependent inhibitors of steroid 5α-reductase type II, with dutasteride being more efficient, influenced by the enzyme's genetic variants.

This study found that novel compounds moderately inhibited 5α-reductase type 1 activity compared to finasteride, offering valuable data on structure-activity relationships.

This study found that among 17 beta-(N-ureylene-N,N'-disubstituted)-4-azasteroids, those with an N'-phenyl moiety were the most effective inhibitors of human type I 5 alpha-reductase.

This study found that PNU 157706 is a highly potent inhibitor of human 5α-reductase enzymes, showing a stronger and longer-lasting antiprostatic effect in rats compared to finasteride.

This review discusses the biochemical properties and clinical significance of 5 alpha-reductase isozymes and reports no new clinical results.

This study used homology modeling to create a detailed in silico structure of 5α-reductase type II, suggesting it can aid in designing steroid reductase drugs.

In this study, 4-substituted N-(1,1-dimethylethyl)-3-oxo-4-androstene-17.beta.-carboxamides were synthesized and evaluated in vitro as potential 5 alpha-reductase inhibitors and antiandrogens.

This study found that Sophora flavescens extract may promote hair growth in mice by inducing earlier hair cycle changes and regulating growth factors in dermal papilla cells.

This article reviews the effects of 5 alpha-reductase inhibitors for treating conditions like male pattern baldness and benign prostatic hyperplasia, noting significant DHT reduction but reports no new clinical results.

This review discusses various targets for treating prostate cancer and benign prostatic hyperplasia and reports on recent studies of new compounds and 5α-reductase inhibitors, but provides no new experimental results.

This review summarizes recent research on the molecular properties and functions of L-PGDS and PGD2, but reports no new findings, highlighting their pathophysiological roles and guiding future studies.

This study found that 5alpha-reductase type 1 localizes specifically to sebaceous glands in both normal and acne follicles, suggesting its role in sebum regulation.

This study found that Lepidium sativum leaf extract significantly downregulated VEGF, TNF-α, and SRD5A2 gene expressions in HaCaT cells, suggesting potential benefits for inflammatory and androgen-dependent skin disorders.

In this study, researchers found that young men with androgenic alopecia exhibited significantly higher mRNA levels of 5α-reductase isozymes and changes in prostate cancer-related genes, which could explain varying responses to treatment and guide future therapies.

This study found that cyclosporin A stimulates growth in cultured murine hair epithelial cells and reduces protein kinase C expression, suggesting that these actions may contribute to its hair-growing effects.

In this study, novel substituted benzoyl benzoic acids and phenylacetic acids were potent and selective inhibitors of human steroid 5alpha-reductase type 2, with one compound showing promising bioavailability in rats for potential clinical evaluation.

GNPTAB gene is crucial for normal hair color in humans and mice.

This review discusses the role of 5α-reductase in prostate development and BPH, and reports no new clinical results; ongoing trials are exploring dual isozyme inhibitors for improved treatment efficacy.

This review discusses the development and selectivity of 5 alpha-reductase inhibitors, particularly non-steroidal ones, and reports no new clinical trial results.

This study suggests that finasteride's effect on promoting hair growth in men with androgenetic alopecia may be due to its inhibition of 5aR2 localized in hair follicles.

This study found that increased expression of type II 5α-reductase, androgen receptors, and Hic-5/ARA55 in dermal papilla cells upregulates androgen sensitivity, playing a key role in androgenetic alopecia pathogenesis.

This study suggests that the COX-2 enzyme plays a role in hair follicle biology, as transgenic overexpression in mice induced hair follicle cycling disturbances and alopecia, which was mitigated by COX-2 inhibition.

This review discusses genetic and nutritional causes of hair loss, highlighting that around 90% of treated men show noticeable hair regrowth with a dual inhibitor, while women's hair loss may improve by correcting iron and l-lysine deficiencies.