乙烯氧化物暴露与美国老年人的认知功能之间的关联:NHANES 2013-2014年
Shu Liu1, Jiarui Li2, Li Wang3
1Beijing College of Social Administration (Ministry of Civil Affairs Training Center), Beijing, China.
Journal of Alzheimer's disease : JAD
|August 30, 2024
概括
通过血液血红蛋白添加物 (HbEO) 测量的高乙烯氧化物 (EO) 暴露与美国老年人的认知能力下降有关. 这表明需要对EO进行进一步的研究.
科学领域:
- 环境健康 环境健康
- 神经科学是一个神经科学.
- 毒理学 毒理学 毒理学
背景情况:
- 乙烯氧化物 (EO) 是一种普遍存在的有机化合物,与有害健康影响有关.
- 关于EO暴露对认知功能的影响的研究,特别是在老年人中,仍然有限.
研究的目的:
- 研究一组老年人中乙烯氧化物 (EO) 暴露与认知功能之间的关联.
- 探索EO暴露生物标志物和认知表现之间的线性和非线性关系.
主要方法:
- 在2013-2014年国家健康和营养检查调查 (NHANES) 中利用了438名老年人的数据.
- 通过血液中的血红蛋白添加物对乙烯氧化物 (HbEO) 水平的量化EO暴露.
- 评估认知功能使用联盟建立一个注册表的阿尔茨海默病电池 (CREAD),动物流利性测试 (AFT),和数字符号替代测试 (DSST).
- 采用线性回归,通用添加模型和两部分线性回归来分析暴露-认知关系,包括值效应.
主要成果:
- 较高的HbEO水平与动物流利性测试 (AFT) 和数字符号替换测试 (DSST) 的较低分数相关.
- 调整后的分析显示,log2转换的HbEO水平和AFT分数之间存在显著的负相关性.
- 在EO暴露和DSST得分之间观察到非线性关系,在log2转换HbEO水平的4.34 pmol/g Hb值以上明显出现负相关性.
结论:
- 升高的HbEO水平与美国老年人的认知能力下降有关.
- 研究结果表明,乙烯氧化物对认知功能的潜在神经毒性作用.
- 需要进一步的纵向研究来证实这些关联并阐明潜在的机制.
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