叶酸可以防止产前暴露于乙醇引起的功能和结构性心脏缺陷
Stephanie M Ford1,2, Cameron J Pedersen3, Matthew R Ford4
1Division of Neonatology, Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, Ohio.
概括
产前暴露于酒精会通过改变血液流动和内心造成心脏缺陷. 叶酸 (FA) 部分改善了乌胚胎中的这些缺陷,突出了早期补充的好处.
科学领域:
- 发展生物学 发展生物学
- 心血管研究研究心血管研究
- 甲状腺学 甲状腺学是一门学科.
背景情况:
- 先天性心脏病 (CHD) 与异常的血液流动和内心发育有关.
- 产前酒精暴露 (PAE) 是已知的心血管疾病的原因,影响心血管早期发育.
- 叶酸 (FA) 已被认为可以预防神经管缺陷,但其在减轻PAE引起的心脏异常方面的作用需要进一步调查.
研究的目的:
- 研究PAE和FA补充对胚胎心脏血流和内心形态学的影响.
- 量化暴露于乙醇和/或FA的长胚胎中吐的血液流量和内心的体积.
- 评估PAE和FA对胚胎发育的影响,包括身体曲率和心率.
主要方法:
- 在胃化阶段使用长胚胎的过度饮酒模型.
- 暴露于乙醇,FA (3.2μg/蛋),或两者同时.
- 使用多普勒光学连贯断层扫描 (OCT) 量化反血流.
- 通过OCT成像测量内心体积和评估身体曲率和心率.
主要成果:
- 乙醇暴露显著增加了回血流,并减少了卵胚胎内心的体积.
- 与乙醇同时服用FA补充剂部分降低了反血流和改善了内心的大小,但并没有完全恢复到控制水平.
- FA部分缓解了PAE引起的异常身体曲和心血管功能,但并没有完全预防缺陷.
结论:
- 早期胚胎暴露于乙醇会扰乱心脏血液动力学和内心发育,导致心脏病.
- 叶酸补充剂在胚胎模型中显示出对PAE诱导的心血管缺陷的部分保护作用.
- 这些发现强调了在怀孕期间早期补充叶酸对于预防神经管和心脏缺陷的重要性.
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