This study using Mendelian randomization suggests lifelong increased free testosterone in males may have beneficial effects such as increased bone mineral density and decreased body fat, but also increased risks of prostate cancer and hypertension.
July 2011 in “مجله علمی پزوهشی دانشگاه علوم پزشکی ایلام” Testosterone reduces, while finasteride enhances, morphine's pain relief.
This study found that prenatal exposure to finasteride in rats disrupted male reproductive development, causing physical alterations such as delayed preputial separation and increased nipple retention.
40 citations
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December 2016 in “Journal of Ovarian Research” In this study on rats, rutin showed dose-dependent improvements in hormonal, antioxidant, and lipid profiles related to polycystic ovary syndrome, with effects comparable to metformin.
18 citations
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June 2009 in “Journal of Molecular Endocrinology” This study found that exposure to finasteride impaired spermatogenesis in male Xenopus laevis by affecting sex-specific feedback mechanisms in the hypothalamus–pituitary–gonad axis.
13 citations
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January 2020 in “Neuroscience” This study found that finasteride impaired object recognition memory and altered hippocampal dendritic structures in male 3xTg-AD mice, suggesting potential sex differences in Alzheimer's disease pathology.
10 citations
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October 2020 in “Microscopy and Microanalysis” This study found that resveratrol significantly alleviated testicular damage in male rats caused by finasteride, which otherwise led to decreased testosterone levels and various histopathological alterations in the testes.
7 citations
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January 2019 in “Brazilian Journal of Pharmaceutical Sciences” This study found that Adiantum capillus-veneris extract exhibited significant antidepressant and anti-anxiety effects in rats, likely due to its antioxidant and anti-inflammatory properties.
July 2026 in “Veterinary Medicine and Science” In this study, Quercetin-loaded black seed oil nanoemulsion effectively mitigated testosterone-induced testicular oxidative stress and inflammation in rats undergoing exercise and restraint stress, with improved antioxidant levels and reduced inflammatory markers compared to other treatment groups.
March 2026 in “Physical Education Health and Social Sciences” In this randomized controlled trial, combining cinnamon and inositol led to significant improvements in metabolic and hormonal parameters, such as reduced LH, testosterone, fasting glucose, and ovarian ultrasound scores, in overweight women with PCOS, indicating superior benefits over either supplement alone.
October 2025 in “Scientific Reports” In this study of 131 healthy men aged 30 to 45, no relationship was found between androgen receptor gene polymorphisms related to androgen sensitivity and biological age markers, suggesting that other factors may influence the aging process independently of these genetic variations.
October 2023 in “FASEB bioAdvances” This study investigated the effects of Akkermansia muciniphila on testosterone-induced hair growth inhibition in mice, finding that both live and pasteurized forms significantly encouraged hair growth and increased hair follicle size and growth factor levels compared to testosterone treatment alone.
65 citations
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October 1999 in “Journal of The American Academy of Dermatology” In this study, finasteride doses as low as 0.2 mg per day significantly reduced both scalp skin and serum DHT levels in men with androgenetic alopecia.
60 citations
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February 2010 in “Gynecological Endocrinology” This study suggests that adding metformin to diet and exercise improves insulin resistance and hyperandrogenism in women with PCOS, though lifestyle changes alone may enhance menstrual cycles.
50 citations
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January 2016 in “The Journal of Clinical Endocrinology and Metabolism” This study found that miRNA expression profiles in follicular fluid are altered in women with PCOS, with certain miRNAs potentially useful for distinguishing patient subtypes and contributing to understanding PCOS heterogeneity.
36 citations
,
January 1998 in “Journal of Dermatological Treatment” This study developed a standardized questionnaire to measure patient-perceived changes in hair growth and appearance, which showed significant favoring of active treatment over placebo in a clinical trial for male androgenetic alopecia.
22 citations
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October 2019 in “Cerebral cortex” This study found that testosterone and dihydrotestosterone are crucial for synaptic transmission and spine density in male hippocampal neurons, suggesting sex-specific effects of neurosteroids on brain development.
January 2024 in “Institutional Repositories DataBase (IRDB)” This study developed a method to measure local steroid hormone concentrations in hair, providing new insights into hormone dynamics associated with androgenetic alopecia.
40 citations
,
November 2011 in “American Journal of Human Biology” In this study, stress experienced by transmen during early stages of gender transition was associated with reduced nocturnal blood pressure decline and increased C-reactive protein levels.
18 citations
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June 2016 in “PeerJ” In this study, testosterone increased the expression of epithelial sodium channel proteins and mRNAs in rat kidneys, suggesting a potential mechanism for its effect on blood pressure through enhanced sodium reabsorption.
15 citations
,
January 2009 in “International Journal of Andrology” This study found that an alcoholic extract of Glycyrrhiza glabra significantly reduced prostate weight and serum testosterone in castrated rats given testosterone, indicating potential antiandrogenic properties.
11 citations
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September 2020 in “OncoTargets and Therapy” This study found that testosterone may promote glioblastoma progression by being converted into dihydrotestosterone, which enhances cell proliferation, migration, and invasion in GBM cell lines.
2 citations
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July 2023 in “Water” In this study, the genotoxic effects of the 2020 harmful algal bloom event were linked to specific toxic algal groups affecting Tradescantia plants, making Trad-SHM and Trad-MN tests suitable for evaluating HABs' toxic potential.
2 citations
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February 2021 in “Brain Research” This study found that testosterone replacement in castrated male rats counteracted endotoxemia-induced arterial baroreflex dysfunction without significantly affecting neuroinflammation.
2 citations
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December 1994 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” This study concluded that a regimen of transdermal estradiol and oral medroxyprogesterone acetate effectively reduces hirsutism while minimizing side effects in women with polycystic ovary syndrome.
This study found that applying an ethanol extract of Prasiola japonica improved hair regrowth, length, and follicular density in testosterone-induced hair loss conditions in mice, while also promoting dermal papilla cell proliferation and reducing dihydrotestosterone production, though effects were less pronounced than those of minoxidil.
May 2026 in “Frontiers in Pharmacology” In this study, DOP treatment improved hair regrowth in androgenetic alopecia by altering local steroid metabolism and follicular morphology.
May 2025 in “Indian Journal of Pharmacology” In this study, researchers reported that standardized rosemary and capsicum extracts significantly improved hair growth parameters such as follicle density, length, and diameter in rats with testosterone-induced alopecia, suggesting these extracts may aid in more effective natural treatments for androgenetic alopecia.
January 2017 in “Korean Journal of Pharmacognosy” This study found that pectin lyase-modified red ginseng extract may promote hair growth by enhancing antioxidant and anti-inflammatory activities, along with inhibiting testosterone-induced 5-alpha-reductase in human hair dermal papilla cells.
35 citations
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January 2012 in “The Journal of Sexual Medicine” This review examines various androgen deprivation therapy methods for advanced prostate cancer, highlighting benefits and potential cardiovascular and sexual adverse effects, but reports no new clinical results.