January 2024 in “Australasian journal of dermatology (Print)” In this case study, researchers documented a Chinese boy with hair color changing to red and identified MC1R genetic mutations as the cause, rather than zinc deficiency, enhancing our understanding of hair heterochromia due to genetic factors.
39 citations
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November 1987 in “Clinica Chimica Acta” Human platelets change minoxidil to minoxidil sulfate, helping blood vessels widen.
This study found that 2-hydroxy-1,4-naphthoquinone was the most effective inhibitor of steroid 5α-reductase, showing stronger inhibition than avicequinone C in HaCaT cell assays.
4 citations
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June 2020 in “Processes” This study suggests that G. sibiricum has potent aldose reductase inhibitory activity, primarily due to kaempferol rhamnosides, and may be further explored as a natural treatment for diabetes-related complications.
July 2025 in “American Journal on Addictions” This study suggests that using opioids along with 5αRI may reduce opioid use disorder risk in humans, supporting similar findings from animal studies.
12 citations
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October 1978 in “PubMed” This study found that the aromatic retinoic acid derivative Ro 10-9359 provided excellent results in 64% of severe psoriasis patients, especially in those with erythrodermic and pustular types, though relapses and side effects were noted.
June 2016 in “Makedonski medicinski pregled” This case report describes severe hypotension, acute coronary syndrome, tachycardia, and acute kidney failure in a man who ingested topical minoxidil, with eventual recovery following intensive treatment.
May 2022 in “Current Enzyme Inhibition” This study found that the synthesized compound 7b exhibited higher 5α-reductase inhibitory activity, increased solubility, and dissolution compared to finasteride, suggesting its potential as a lead compound for benign prostatic hyperplasia treatment.
12 citations
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November 2004 in “Photochemistry and Photobiology” In this study, a superoxide dismutase gel prevented hair graying in mice exposed to photosensitization, suggesting that antioxidants can protect against oxidative damage involved in hair aging.
39 citations
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January 1977 in “Dermatology” This study found that the retinoic acid derivative Ro 10-9359 cleared psoriasis lesions in over half of the patients, but most experienced side effects, including skin issues and altered liver enzyme levels.
6 citations
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April 2022 in “Biomedicine & pharmacotherapy” This review discusses the potential of using triads of repositioned medicines targeting multiple pathogenic mechanisms to prevent or delay retina degeneration, but reports no new results.
6 citations
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February 2020 in “Journal of Natural Products” In this chemical investigation, cyclospongiaquinone 1 from the sponge Verongula cf. rigida showed strong steroid 5α-reductase inhibitory activity, comparable to that of finasteride.
1 citations
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June 2025 in “Journal of Cellular and Molecular Medicine” This study explored the role of plant-derived monomers in reversing grey hair, finding that compounds like fraxinol and morin may stimulate melanin production and tyrosinase activity, suggesting potential therapeutic benefits, although further evaluation of their safety and efficacy is needed.
This study found that in sleep-deprived rats, increased 5α-reductase expression and activity in the prefrontal cortex contributed to psychosis- and mania-like symptoms, which finasteride ameliorated in a dose-dependent manner.
February 2024 in “Cancers” This review highlights recent progress in developing androgen receptor degraders, such as PROTACs, for treating castration-resistant prostate cancer, and notes that several have entered phase I or II clinical trials, showcasing potential to address drug resistance challenges.
6 citations
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June 2016 in “Journal of receptor and signal transduction research” This study found that minoxidil increases cytosolic-free Ca2+ levels and induces cytotoxicity in PC3 human prostate cancer cells, with the cytotoxicity occurring in a Ca2+-independent manner.
14 citations
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February 2018 in “Psychoneuroendocrinology” This study found that male 5α-reductase 2 knockout mice showed deficits in social dominance behaviors and reduced dopamine receptor binding in a brain region related to social ranking.
May 1961 in “Tumori Journal” This study found that vitamin A treatment in rats reduced hyperplastic-dysplastic changes and sebaceous gland hypertrophy associated with 3,4-benzpyrene-induced tumors.
89 citations
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February 1993 in “Journal of Medicinal Chemistry” This research article focuses on nonsteroidal inhibitors of human type I steroid 5-alpha-reductase but reports no new results.
10 citations
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November 2009 in “Pigment cell & melanoma research” This study by Pérez-Oliva et al. explored how Mahogunin Ring Finger-1 (MGRN1) affects melanocortin-1 receptor (MC1R) signaling, suggesting that MGRN1 competitively inhibits Gαs binding to MC1R, influencing pigment production.
217 citations
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February 2009 in “The FASEB Journal” This study found that hydrogen peroxide accumulation and reduced methionine sulfoxide repair play a significant role in the oxidative damage linked to senile hair graying.
44 citations
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July 2012 in “Endocrine Practice” This review highlights the need for a deeper understanding of 5alpha-reductases and neuroactive steroids to reduce potential adverse effects of 5alpha-reductase inhibitors used for conditions like benign prostatic hyperplasia and androgenic alopecia, but reports no new clinical results.
57 citations
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February 1975 in “Journal of Clinical Investigation” This study found that minoxidil increased plasma renin activity in patients with hypertension through both an adrenergic mechanism related to heart rate changes and a secondary mechanism unrelated to propranolol.
January 2018 in “ScholarWorks @UVM (University of Vermont)” This study provides evidence supporting the theory that the presence of selenocysteine in proteins, such as thioredoxin reductase, may confer chemical reversibility, which contributes to their oxidative resistance and potential catalytic functions.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” September 2018 in “The Journal of Urology” This review discusses FAERS data on 5-alpha reductase inhibitors and their potential implications for post-finasteride syndrome, but it does not report any new clinical results.
July 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” This study reports that structural and biochemical analysis of steroid 5α-reductases clarifies how they mediate steroid reduction with NADPH, potentially aiding in designing targeted therapies.
19 citations
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June 2010 in “Journal of acupuncture and meridian studies” This study found that emodin from Polygonum multiflorum showed 5alpha-reductase inhibitory activity, which was more potent than alizarin but less potent than riboflavin.
73 citations
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January 1994 in “European Urology” This study found that finasteride significantly reduced serum dihydrotestosterone levels, confirming its efficacy as a 5a-reductase inhibitor, while Permixon showed no effect in healthy male volunteers.