中文摘要：

这研究的目的是在 vitro 在一根鼠科的 Leydig 肿瘤房间线(MLTC-1 ) 在 steroidogenesis 上评估 DEHP 和 MEHP 的低集中的效果。流动 cytometry 分析的结果表明 apoptotic 房间的比例显著地在暴露以后被增加到 DEHP。所有三基因(P450scc， P450c17，并且 3 ? HSD ) 在学习下面显示出增加的表达式追随者暴露到 DEHP 或 MEHP，尽管一些不足道的禁止的效果出现了在 10 ? mol/L 处理组同样与控制相比。它也被发现那 DEHP 或 MEHP 在特别刺激了 INSL3 mRNA 和蛋白质 0.001 ? mol/L 处理组。睾丸激素分泌物在暴露以后被刺激到 DEHP 或 MEHP。在 MLTC-1 房间的 steroidogenic 酶和 INSL3 的改变可能在雄激素生产上涉及 DEHP/MEHP 的 biphasic 效果。

英文摘要：

The aim of this study was to evaluate the effects of low concentrations of DEHP and MEHP on steroidogenesis in a murine Leydig tumor cell line （MLTC-1） in vitro. The result of flow cytometry analysis revealed that the proportion of apoptotic cells was significantly increased after the exposure to DEHP. All three genes （P450scc, P450c17, and 38HSD） under study showed an increased expression following exposure to DEHP or MEHP, although some insignificant inhibitory effects appeared in the 10μmol/L treatment group as compared with the controls. It was also found that DEHP or MEHP stimulated INSL3 mRNA and protein especially in the 0.001 μmol/L treatment group. Testosterone secretions were stimulated after the exposure to DEHP or MEHP. Alterations of steroidogenic enzymes and INSL3 in MLTC-1 cells might be involved in the biphasic effects of DEHP/MEHP on androgen production.