Epigenetic Modulation of ESR1 and DNMT3A Following Finasteride Exposure: Implications for Female Reproductive Function
May 2026
in “
Physiology
”
TLDR Finasteride may affect female fertility by altering gene activity.
This study explores the epigenetic effects of finasteride, a drug commonly used for androgenic alopecia, on female reproductive function. Researchers focused on its impact on estrogen receptor 1 (ESR1) and DNA methyltransferase 3A (DNMT3A), both crucial for fertility and oocyte development. Using Sertoli cell models, the study found that finasteride exposure led to altered methylation patterns in several genes, including ESR1 and DNMT3A, suggesting potential disruptions in reproductive signaling pathways. Although the study does not establish a direct causal link, it raises concerns about finasteride's possible contribution to reproductive dysfunction or infertility in women through epigenetic changes, warranting further investigation.