双酚A对男性生殖毒性的研究进展

Male reproductive toxicity of bisphenol A

环境干扰物对男性生殖的毒性作用是研究热点。双酚A(BPA)是一类环境雌激素,与男性生殖健康以及其他疾病如糖尿病、肥胖、心血管疾病及癌症等相关。BPA可通过拟雌激素或抗雄激素作用干扰人体内分泌系统,如干扰下丘脑-垂体-睾丸轴、调节激素合成相关基因的表达和酶活性、影响激素及其受体功能等,也可通过修饰DNA甲基化、表观遗传效应等方式,引起生精障碍、少弱畸精子症等导致男性不育。本文综述BPA暴露对男性精子发生、精液质量及生殖内分泌系统的毒性作用。

The reproductive toxicity of environmental endocrine disruptors has attracted substantial attention from researchers in recent years. Bisphenol A （BPA） is among the most prominent environmental estrogens worldwide, demonstrated to be related with the impairment of male reproductive function as well as other health problems, such as diabetes, obesity, cardiovascular diseases, and cancer. BPA acts primarily by mimicking antiandrogenic and estrogenic effects, disturbing the hypothalamic-pituitary-testicular axis anti modulating gene expressions and enzyme activities in the hormone biosynthesis affecting steroids or its receptors. BPA is also involved in DNA methylation and the effects of epigenetics, resulting in dyszoospermia, oligoasthenoteratospennia/azoospermia and/or infertility in males. This review addresses the effects of BPA on male reproductive function, focusing on the mechanisms of its toxicity on spermatogenesis, semen quality, and the reproductive system.