Finasteride impairs sperm quality and fertility in rats, even after stopping treatment.
2 citations
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January 2004 in “Korean Journal of Andrology” January 2016 in “ISBN: 978-84-608-9184-0” 13 citations
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March 1999 in “Biochemical Journal” Overexpressing SSAT in mice makes them highly sensitive to polyamine analogues, causing liver damage and high mortality.
April 2026 in “The Journal of Urology” Finasteride 1 mg/day reduces semen quality without affecting hormones or sexual function.
31 citations
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January 2001 in “PubMed” 54 citations
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February 2002 in “Carcinogenesis” Increasing SSAT makes skin more prone to cancer.
11 citations
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March 2010 in “International Journal of Andrology” Finasteride 1-mg doesn't harm sperm or pregnancy chances.
Long-term finasteride use may affect sperm structure and chromosomes.
Finasteride may affect female fertility by altering gene activity.
October 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” A small BOTOX dose improved sperm production and movement in older mice.
October 2025 in “Physiologia” Spermidine may improve skin health and hair growth by enhancing cell function.
January 2014 in “theses.fr (ABES)” Androgens regulate Sertoli cells and affect fertility through specific receptors and coregulators.
34 citations
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January 2004 in “PubMed” DHT deficiency in rats reduces sperm content and affects testis structure over time.
Finasteride causes reproductive changes in male rats.
July 2025 in “Reproductive Biology” Finasteride use in male rats may harm their male offspring's liver function.
2 citations
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April 2019 in “Journal of Internal Medicine” Men using steroids or finasteride to look more attractive may harm their fertility and sexual function, creating a paradox where they seem fit but may be less able to reproduce.
Finasteride affects prostate development differently in male and female Mongolian gerbils.
April 2020 in “The FASEB Journal” Finasteride may cause lasting sexual issues by altering specific genes in human cells.
54 citations
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May 2001 in “Journal of Investigative Dermatology” Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
48 citations
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February 2006 in “Molecular and Cellular Endocrinology” 5α-reductase inhibitors may reduce male fertility and could be used for male contraception.
Finasteride causes reproductive malformations in male rats.
37 citations
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February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
January 2024 in “Wiadomości Lekarskie” Male sperm disorders significantly contribute to infertility.
10 citations
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July 1980 in “British Journal of Dermatology” Topical putrescine and spermine increased DNA synthesis in hairless mouse skin.
2 citations
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October 1999 in “The Journal of Urology” Finasteride reduces DHT levels and affects gene expression in fish, similar to its effects in humans.
1 citations
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August 2019 in “Environmental Toxicology” Exposure to low doses of finasteride in the womb causes changes in the prostate of both male and female gerbils.
91 citations
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July 2004 in “Journal of Biological Chemistry” Overexpressing SSAT enzyme reduces prostate tumor growth in mice.