产前对乙氨基的暴露会诱导胎盘形态和功能以及其影响因素的变化
Ziyi Zhang1, Yuxi Wang1, Yu Guo2
1Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071, China.
概括
在小鼠中,产前对乙氨基的暴露导致了胎盘损伤,改变了基因表达和营养物质的运输. 这些影响在较高剂量和较晚的妊娠阶段更为严重,影响胎儿发育.
科学领域:
- 生殖生物学 生殖生物学
- 发展性毒理学 发展性毒理学
- 药理学 药理学 是一个学科.
背景情况:
- 乙氨基是怀孕期间广泛使用的止痛药和降热剂.
- 胎盘对于胎儿发育和营养交换至关重要.
- 了解乙氨基对胎盘的影响对于产前安全至关重要.
研究的目的:
- 调查产前乙氨基暴露 (PAcE) 对小鼠胎盘发育的影响.
- 检查剂量,过程和妊娠阶段如何影响这些影响.
- 探索PAcE诱导的胎盘变化背后的分子机制.
主要方法:
- 小鼠在不同的剂量 (100或400毫克/公斤·日),疗程 (12或10-12怀孕日) 和阶段 (12或15-17怀孕日) 中暴露于乙氨基.
- 分析了胎盘形态,基因表达 (增殖,亡,营养载体) 和IGF1/2信号通路.
- 进行了相关性分析,以将分子变化与胎盘发育联系起来.
主要成果:
- 这种PAcE会导致 trofhoblast 细胞死亡,并破坏胎盘分泌.
- 基因表达显示减少了增殖和增加了亡.
- 营养物质运输基因表达 (葡萄糖,氨基酸,胆固醇吸收) 被改变,脂肪酸运输减少.
- 高剂量,单餐,第三个月,女性胎盘表现出更明显的变化.
- PAcE抑制了IGF1/2信号通路,这与胎盘基因表达变化相关.
结论:
- 产前对乙氨基的暴露会导致胎盘发生显著的形态和功能变化.
- 剂量,暴露过程,妊娠阶段和胎儿性别是影响胎盘毒性的关键因素.
- 这些发现突出了怀孕期间使用乙氨基相关的潜在发育风险,并为毒性评估提供了参考.
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