January 2024 in “Clinical, cosmetic and investigational dermatology” In this case report, a four-year-old girl was diagnosed with vitamin D-dependent rickets type II, manifesting as diffuse alopecia, frontal bossing, hypoplastic teeth, and skin-colored papules, due to a genetic mutation causing resistance to 1.25-dihydroxy vitamin D.
January 1995 in “Revista de arqueología” In this study, the vitamin D analogues 1 alpha,25-dihydroxy-vitamin D3 and calcipotriol were found to thin the living cell layer and affect differentiation marker expression in organotypic cultures of human outer root sheath cells.
November 2025 in “Current Cosmetic Science” This study reviews the potential of rosemary for hair loss treatment, highlighting its beneficial bioactive compounds that may support healthier scalps and promote hair growth, though inconsistencies in formulations and lack of long-term safety data suggest more research is needed.
June 2025 in “Journal of Cosmetic Dermatology” This study found that among various treatments for male androgenetic alopecia, dutasteride 0.5 mg/day was the most effective option overall. Additionally, among FDA-approved treatments, topical minoxidil 5% was the most effective topical therapy, and finasteride 1 mg/day was the most effective oral therapy.
January 2024 in “Journal of Biosciences and Medicines” This research suggests that recent discoveries of signaling pathways in androgenic alopecia may pave the way for targeted therapies, providing potential new treatment options beyond the current FDA-approved drugs, minoxidil and finasteride.
This study found that the Padina arborescens extract and its component MOGG may prevent hair loss by inhibiting 5α-reductase activity, promoting cell proliferation, opening the KATP channel, and increasing PGE2 production in laboratory settings.
7 citations
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January 2022 in “Scientific Reports” This study found that Acanthus ebracteatus extract and verbascoside induced dermal papilla cell proliferation and reduced inflammatory cytokine release in vitro, suggesting potential for anti-hair loss applications.
6 citations
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January 1994 in “PubMed” This review explores the complexity of the hair cycle and discusses the roles of various growth factors, androgens, and cytokines in regulating hair growth, yet reports no new results.
5 citations
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June 2018 in “Records of Natural Products” 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.
1 citations
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December 2022 in “Current Issues in Molecular Biology” This study found that orally administered Annurca apple extract improved hair length, thickness, weight, and density in mice, while also increasing the expression of hair growth-related genes and proteins, suggesting potential as a natural treatment for hair loss.
June 2026 in “Current Issues in Molecular Biology” In this study, a botanical extract and minoxidil showed similar effects in vitro by reducing pro-inflammatory cytokines and 5α-reductase expression while increasing growth factors VEGF and KGF in human keratinocyte cells, suggesting potential for further in vivo research.
February 2015 in “American journal of medical and biological research” This study found that molecular differences in paracrine factors between balding and non-balding hair follicles may enhance understanding of androgen action in hair disorders and potentially inform better treatments.
237 citations
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December 2001 in “Urology” 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.
45 citations
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September 2000 in “Archives of dermatology” 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.
35 citations
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May 2020 in “Frontiers in Pharmacology” This review provides a comprehensive overview of the mechanisms, efficacy, and adverse reactions of drugs commonly used for treating benign prostatic hyperplasia but reports no new clinical results.
20 citations
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August 2019 in “Expert Opinion on Drug Safety” This review examines the cognitive effects of medications for lower urinary tract symptoms and indicates that muscarinic antagonists, particularly oral oxybutynin, pose the highest risk for cognitive impairment.
14 citations
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November 2006 in “Current Medicinal Chemistry” This review discusses recent developments in α1-adrenoceptor antagonists and 5α-reductase inhibitors for treating benign prostatic hyperplasia, reporting no new clinical results while identifying potential areas for future drug development.
11 citations
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January 1998 in “Dermatology” This review explores various substances with potential antiandrogenic effects for treating acne, highlighting evidence for isotretinoin, and discusses the future consideration of 5 alpha-reductase inhibitors as antiandrogens.
10 citations
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November 2024 in “Cureus” This systematic review identified several factors contributing to increased cardiovascular risk in women with polycystic ovary syndrome, including insulin resistance, obesity, inflammation markers, and microbiota alterations linked to elevated trimethylamine-N-oxide levels.
4 citations
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September 2002 in “Der Urologe” This review reports that combination therapy with 5α-reductase inhibitors and α1-receptor blockers does not appear to benefit patients with benign prostatic hyperplasia and prostate volumes up to 40–45 ml, but may be more effective for larger prostate volumes.
3 citations
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October 2024 in “Frontiers in Medicine” This study investigated single-cell changes in photoaged skin, revealing distinct cell clusters and increased activity in PD-L1 and PD-1 pathways in sun-exposed areas, enhancing understanding of UVA-induced skin damage and potential prevention targets for photoaging and UV-induced skin cancers.
1 citations
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December 2023 in “Curēus” This literature review identified that phosphodiesterase 5 inhibitors, such as Tadalafil, are highly effective in improving lower urinary tract symptoms associated with benign prostatic hyperplasia, while the efficacy of saw palmetto remains inconsistent.
March 2014 in “Annals of Internal Medicine” This review found that adding α1-blockers to 5α-reductase inhibitors may improve lower urinary tract symptoms in men with non-neurogenic conditions, based on existing evidence.
September 2004 in “Urology” Dutasteride may help prevent prostate cancer, but more research is needed.
578 citations
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April 1993 in “Cell” This study found that mice with a disrupted TGFα gene display a curly whisker-coat phenotype, similar to waved-1 mice, suggesting TGFα's crucial role in skin architecture and hair development.
124 citations
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January 1996 in “Dermatology” This article reviews the biochemical properties of 5 alpha-reductase isoforms and highlights the limited dermatological use of inhibitors like finasteride, especially for type 1 isozyme-targeting agents, while suggesting further clinical exploration.
75 citations
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October 2002 in “Journal of Dermatological Science” 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.
36 citations
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December 2014 in “F1000 prime reports” This article reviews the challenges in treating hidradenitis suppurativa and discusses potential treatment options, emphasizing the need for increased awareness and comprehensive care, but reports no new clinical results.
36 citations
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October 2009 in “Journal of biological chemistry/The Journal of biological chemistry” This study reports that TFM-4AS-1, a selective androgen receptor modulator, promoted bone and muscle growth with reduced effects on reproductive organs in ovariectomized rats.
28 citations
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January 2013 in “Stem cells” This study found that the CD44(+) ALDH(+) population of neonatal human keratinocytes exhibited enhanced stem cell properties, including significantly increased long-term epidermal regeneration and multipotency, compared to unfractionated cells.