孕产妇的饮食和产周器官酸盐阻燃剂治疗对后代发育,行为和新陈代谢的双重影响
Ali Yasrebi1, Catherine M Rojas2, Shabree Anthony2
1Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA.
Toxics
|August 27, 2025
概括
孕妇的肥胖和在怀孕期间接触有机阻燃剂 (OPFR) 会对后代的发育产生负面影响. 这种联合暴露会破坏血脑屏障并改变基因表达,导致长期的行为和代谢问题.
科学领域:
- 环境毒理学
- 发育生物学
- 神经科学
背景情况:
- 母胎环境对后代的发展至关重要,受营养和环境暴露的影响.
- 有机阻燃剂 (OPFR) 是环境污染物,与能量稳定和行为变化有关.
- 孕产妇的肥胖会影响血脑屏障的形成,影响大脑发育和能量调节.
研究的目的:
- 研究母体肥胖和围产期OPFR暴露对小鼠后代发育的综合影响.
- 评估对新生儿血脑屏障完整性,能量平衡和基因表达的影响.
- 评估成年后代的长期代谢和行为结果.
主要方法:
- 在怀孕和哺乳期间,母鼠被食低脂肪饮食 (LFD) 或高脂肪饮食 (HFD),并暴露于芝麻油或OPFR混合物.
- 后代在成年后被评估血脑屏障完整性,下丘脑和肝脏基因表达以及行为和代谢参数.
主要成果:
- 孕产妇的肥胖和OPFR治疗都破坏了新生儿的BBB完整性,下丘脑能量平衡和生殖基因表达.
- 与脂质和异生物代谢相关的肝脏基因表达被改变.
- 暴露于OPFR的成年后代表现出行为变化 (避开,记忆障碍) 和代谢变化 (能量消耗减少,活动减少).
结论:
- 母亲的饮食和围产期OPFR暴露对后代的神经发育和新陈代谢产生协同作用.
- 新生儿下丘脑和肝脏基因表达的改变可能导致长期的健康后果.
- 这项研究凸显了大脑发育的脆弱性,
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