压力生物标志物和孟加拉国幼儿的儿童发展
Zachary Butzin-Dozier1, Andrew N Mertens1, Sophia T Tan2
1School of Public Health, University of California, Berkeley, CA, USA.
Psychoneuroendocrinology
|March 24, 2024
概括
通过下丘脑-垂体-上腺 (HPA) 轴测量早期生活压力,与低收入国家儿童发育结果较差有关. 这项研究强调了慢性压力因素对幼儿的生理影响.
科学领域:
- 儿科健康 儿科健康
- 发展心理学 发展心理学
- 环境健康 环境健康
背景情况:
- 在低收入和中等收入国家,数百万儿童面临着贫困和营养不良等慢性压力因素.
- 这些早期生活压力因素可能会对生理发育和儿童的长期结果产生负面影响.
- 本研究探讨了幼儿生物压力标志物与发育轨迹之间的联系.
研究的目的:
- 检查早期儿童生理压力指标与发育结果之间的关联.
- 了解慢性压力如何在资源有限的环境中影响儿童的发展.
- 确定与发育迟缓相关的特定压力生物标志物.
主要方法:
- 评估了下丘脑-垂体-上腺 (HPA) 轴活动 (唾液皮质醇,基因甲基化),交感-上腺-髓 (SAM) 系统活动,以及两岁以下儿童的氧化状态.
- 使用标准化工具评估儿童发展:麦克阿瑟 - 贝茨沟通发展清单 (CDI),世卫组织总运动里程碑和延长年龄和阶段问卷 (EASQ).
- 采用通用添加模型来分析压力生物标志物与发育结果之间的关联,控制混因素.
主要成果:
- 在HPA轴活动和儿童发育不佳之间发现了显著的关联.
- 皮质醇反应性增加和后压力水平与较低的CDI理解分数相关.
- 皮质醇升高与较低的EASQ得分有关,而葡萄糖皮质醇受体甲基化与降低的CDI表达有关.
结论:
- 来自HPA轴的生理压力标志物与早期儿童的发育状况有关.
- 这些发现强化了早期生活压力对儿童发育的有害影响.
- 这项研究强调了解决早期生活压力的重要性,以改善发育轨迹.
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