JCEM:孕妇B12、叶酸和同型半胱氨酸的浓度以及子代对应激的皮质醇和心血管反应

2020-03-24 MedSci原创 MedSci原创

该研究的结果表明,孕妇单碳营养素的状况可能对子代的神经内分泌应激反应具有长期的影响。

孕妇单碳营养素(维生素B12、叶酸)的供需不平衡被证明与子代较高的心脏代谢风险标记物有关。近日,内分泌和代谢性疾病领域权威杂志Journal of Clinical Endocrinology & Metabolism上发表了一篇研究文章,该研究旨在通过印度出生队列的儿童版特里尔社会应激测试(TSST-C)期间评估孕妇血浆中低水平维生素B12 (B12)、高叶酸和同型半胱氨酸浓度与较高的下丘脑-垂体-肾上腺轴(皮质醇)和心血管反应之间的相关性。

该研究研究对象为青少年(n=264;平均年龄为13.6岁),其母亲在妊娠期间测量了血浆B12、叶酸和总同型半胱氨酸浓度,在两位不熟悉的“评委”(TSST-C)面前,分别完成了5分钟的公开演讲和心算任务。研究人员测量其基线和应激后唾液皮质醇浓度,并使用指套连续测量基线、TSST-C期间和TSST-C后10分钟的心率、血压、每搏量、心输出量和总外周阻力;分别对这些时间段的心率值求平均值。

孕妇B12水平较低(血浆B12<150 pmol/L)与子代对应激较强的皮质醇反应相关(p<0.001)。高同型半胱氨酸浓度与更高的子代心率反应相关(p<0.001)。经多次比较调整后,母体叶酸浓度升高与子代总外周抵抗反应无显著相关(p=0.01)。

由此可见,该研究的结果表明,孕妇单碳营养素的状况可能对子代的神经内分泌应激反应具有长期的影响。

原始出处:

G V Krishnaveni, et al.Maternal B12, folate and homocysteine concentrations and offspring cortisol and cardiovascular responses to stress.J Clin Endocrinol Metab.2020.https://doi.org/10.1210/clinem/dgz114

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    2020-12-14 achengzhao
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    2020-07-18 smallant2015
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    2021-03-02 楚钟
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