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January 2006 in “Drug Metabolism Reviews” DHEA affects multiple receptors and may help with metabolic issues, but its safety and effectiveness in humans are unclear.
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August 2015 in “Reviews in Endocrine and Metabolic Disorders” 5α-reductase inhibitors may cause persistent sexual dysfunction and depression, needing more research on long-term effects.
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May 2019 in “Journal of Endocrinology” Androgens are important for female fertility and could help in IVF treatment, but also play a role in causing PCOS.
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July 2014 in “American Journal of Physiology-Endocrinology and Metabolism” Testosterone boosts red blood cell production and changes iron metabolism without needing dihydrotestosterone.
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July 2001 in “PubMed” Estrogens can reduce DHT production in hair follicles, but are less effective than finasteride and progesterone.
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January 2009 in “Cellular & Molecular Biology Letters” DHT deficiency increases iNOS expression in rat testis and epididymis.
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August 2020 in “Scientific Reports” Low-dose bisphenol A increases prostate size in rats by affecting certain enzymes.
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September 2006 in “Journal of Neurophysiology” Neurosteroids help balance brain signals when certain inhibitions are reduced.
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December 2022 in “International journal of molecular sciences” Mice without the enzyme HSD17B3 still produce normal testosterone, suggesting they have different ways to make it compared to humans.
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January 2023 in “Andrology” The testes produce sperm and hormones essential for male development.
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August 2022 in “Biomedicines” Dutasteride, usually used for prostate issues and hair loss, could potentially treat Amyotrophic Lateral Sclerosis (ALS) due to its neuroprotective, antioxidant, and anti-inflammatory properties, but more testing is needed.
April 2026 in “Inflammation and Regeneration” AKR1C enzymes in scalp glands decrease with age, possibly affecting hair loss.
Allopregnanolone may help reduce inflammation and symptoms related to post-finasteride syndrome.
November 2023 in “Frontiers in Neuroendocrinology” Some people experience lasting sexual, psychological, and sleep problems after using finasteride or SSRI antidepressants, possibly due to similar underlying causes.
January 2018 in “Journal of translational science” Eating alfalfa sprouts every day can raise testosterone levels in middle-aged men, but broccoli sprouts don't have this effect.
January 2022 in “Current Enzyme Inhibition” New nonsteroidal molecules can potentially increase dihydrotestosterone in neurons by blocking certain enzymes, without affecting prostate and seminal vesicle weight.
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March 2020 in “Frontiers in cell and developmental biology” A substance called TCQA could potentially darken hair by activating certain genes and increasing melanin.
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