Kim Chae Yeon, Kim Chae Rim, Kim Eungyung, Park Kanghyun, Kim Hyeonjin, Ma Lei, Huang Ke, Liu Zhibin, Park Junsu, Jung Minwoong, Li Shengqing, Wen Weihong, Kim Sangsik, Park Sijun, Ryoo Zae Young, Yi Junkoo, Kim Myoung Ok
Department of Animal Science and Biotechnology, Research Institute for Innovative Animal Science, Kyungpook National University, Sangju, Republic of Korea.
Animal Environment Division, National Institute of Animal Science, Wanju, Republic of Korea.
J Biochem Mol Toxicol. 2025 May;39(5):e70279. doi: 10.1002/jbt.70279.
This study aimed to identify the effects of major metal components present in particulate matter (PM)2.5 on the reproductive system, sperm function, and embryo development. Through intratracheal instillation, male mice were exposed to various concentrations of metal components, including calcium oxide (Ca), iron oxide (Fe), aluminum oxide (Al), zinc oxide (Zn), lead oxide (Pb), and a mixture of these metals, in PM2.5 collected from the porcine farm. After 14 days, testicular inflammation and abnormal sperm morphology were observed in the exposed mice. These results indicate that such metal exposure enhances inflammatory cytokines in the testis and oxidative stress-induced apoptosis. Moreover, the exposure influenced sperm deformation, capacitation status, testosterone levels, and testosterone biosynthesis. Importantly, embryo development was also found to be impacted due to decreased sperm fertility. This study demonstrates that major metal components of PM2.5 derived from porcine farm pose adverse effects on the male reproductive system.
本研究旨在确定细颗粒物(PM)2.5中主要金属成分对生殖系统、精子功能和胚胎发育的影响。通过气管内滴注,将雄性小鼠暴露于从猪场采集的PM2.5中的各种浓度的金属成分,包括氧化钙(Ca)、氧化铁(Fe)、氧化铝(Al)、氧化锌(Zn)、氧化铅(Pb)以及这些金属的混合物中。14天后,在暴露的小鼠中观察到睾丸炎症和精子形态异常。这些结果表明,这种金属暴露会增强睾丸中的炎性细胞因子以及氧化应激诱导的细胞凋亡。此外,暴露还影响精子变形、获能状态、睾酮水平和睾酮生物合成。重要的是,由于精子受精能力下降,胚胎发育也受到了影响。本研究表明,猪场来源的PM2.5中的主要金属成分对雄性生殖系统具有不利影响。