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This study identified LY191704 as a specific noncompetitive inhibitor of human 5 alpha-reductase type 1, which may be useful in treating endocrine disorders related to DHT overproduction.

This study evaluated Korean herbal compounds in silico and identified Biochanin A, Saponin Re, and Emodin as potential topical treatments for androgenetic alopecia, each with specific safety and efficacy considerations.

This study suggests that androgen receptor signaling might regulate cellular behavior in bladder urothelial carcinoma, with decreased receptor and enzyme presence potentially linked to tumor progression.

This review outlines the functional anatomy, pathology, and molecular mechanisms of androgenetic alopecia, emphasizing the need for multi-omics approaches to better understand this condition's biology.

This review discusses management strategies for androgenic alopecia using plant derivatives and highlights the need for prolonged efficacy but reports no new clinical findings.

In this research, Sertoli cell line model ST38c demonstrated that the androgen receptor regulates hormone pathways through specific coregulators, suggesting roles for SRC-2 and HBO1 in testicular development and androgen responsiveness.

This article reviews the potential causes of insufficient androgen action during fetal development, such as enzyme and receptor gene mutations or environmental disruptors, but reports no new results.

This study used whole-genome resequencing to analyze genetic diversity and selection in 17 rabbit breeds, identifying genes linked to traits like coat color and body size, which could inform breeding and conservation efforts.

This review discusses the molecular mechanisms of androgens and androgen receptors in skin disorders, particularly androgenetic alopecia, and reports no new clinical results; it highlights potential areas for future treatment development.

In this study, researchers successfully established immortalized human frontal and occipital scalp dermal papilla cell lines from androgenetic alopecia patients, observing distinct gene expression, androgen receptor levels, and hair follicle growth effects between these regions, which may help advance hair loss research and therapeutic development.

This review discusses the current status of genetic research on male-pattern hair loss and reports no new findings, outlining significant achievements and future challenges in understanding its biology and treatment.

This study found that in male Wistar rats, finasteride administration reduced neural cellular activity markers and 5-alpha reductase type 2 expression in brain tissue, with some recovery occurring after drug withdrawal, unlike persistent 5-alpha reductase type 2 suppression.

This animal study found that finasteride, a 5-alpha reductase type 2 inhibitor, decreased dihydrotestosterone levels and c-Fos protein activation in the rat brain, but these effects may diminish after discontinuing the drug.

This study used a novel HPLC-radiomatic flow scintillation system to measure 5α-reductase activity in dermal papillae from miniaturized hair follicles of the human occipital scalp, revealing significant variability in enzyme activity across samples.

This case report describes a 52-year-old man with androgenic alopecia who experienced improvement after adding low-dose dutasteride to long-term finasteride treatment when the initial therapy's effectiveness waned.

This article reviews updates on 5 alpha-reductase inhibitors for treating male pattern hair loss and presents no new clinical findings; the author aims to enhance understanding of these therapies.

This study reported that 5 alpha-reductase type 2 is the predominant enzyme in pubic skin fibroblasts across normal men, women, and hirsute patients, suggesting potential treatment options for idiopathic hirsutism.

This study found that in male yaks, 5α-red1 may play a crucial role in synthesizing DHT to promote hair follicle growth, while E2 synthesized by epithelial cells may inhibit this growth through ERα.

This study developed a theoretical model that suggests finasteride may completely inhibit 5AR type 2, but not sufficiently suppress type 1, leading to only partial reduction of dihydrotestosterone at clinical doses.

This article reviews potential prevention and intervention strategies for prostate cancer, including 5alpha-reductase inhibition, but reports no new clinical findings.

This review discusses the role of genetic mutations and environmental endocrine disruptors in insufficient androgen action, which can result in conditions like hypospadias, cryptorchidism, and micropenis, during male fetal development.

This study found that certain proteins linked to immune suppression and melanogenesis are associated with repigmentation in vitiligo patients undergoing standard treatment, suggesting these proteins and their pathways play roles distinct from merely reversing skin lesions.

This study suggests that type I 5-alpha reductase may also play a role in hair growth, with dutasteride potentially being more potent than finasteride in modulating key hair growth gene expressions.

Some types of hair loss can be reversed, others are permanent, and treatments vary by type.

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 identified enzymes responsible for regulating androgen action in the human prostate, suggesting that inhibiting AKR1C2 or RL-HSD may have therapeutic potential in androgen insufficiency or benign prostatic hyperplasia, respectively.

This study observed that using only a 5 alpha-reductase inhibitor was ineffective for treating androgen-dependent hair loss in women, possibly due to differing copper levels influencing enzyme activity.

In a testosterone-induced mouse model of androgenetic alopecia, this study found that oral and topical administration of Connarus semidecandrus Jack ethanol extract promoted hair regrowth and improved hair health markers similar to finasteride, without detectable liver or kidney toxicity.

This study identified dose levels of selenium that can produce toxicity, noting that doses as low as 2-3 µg Se/kg bw/day can lead to adverse effects, and a human mortality study linked 300 µg/day consumption to increased death risk.

This review discusses various therapeutic options for frontal fibrosing alopecia and highlights the need for more research, as existing data are largely retrospective and lack precise treatment guidelines.