在参考范围内的甲状腺功能变化和认知功能:一个双样本的门德尔随机化研究
1Department of Endocrinology and Metabolism and the Institute of Endocrinology, The NHC Key Laboratory of Diagnosis and Treatment of Thyroid Diseases, First Hospital of China Medical University, Shenyang 110001, China.
Journal of affective disorders
|May 4, 2024
概括
在正常范围内,甲状腺刺激激素 (TSH) 和自由甲状腺素 (FT4) 可能会影响认知功能. 较低的TSH与较差的认知表现和较慢的反应时间有关,而较低的FT4与更快的反应时间有关.
科学领域:
- 内分泌学 在内分泌学.
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
背景情况:
- 甲状腺正常功能与认知之间的关系尚不清楚.
- 甲状腺激素,包括TSH和FT4,在大脑功能中起着至关重要的作用.
- 研究遗传关联提供了一种探索因果关系的方法.
研究的目的:
- 为了研究甲状腺功能在参考范围和认知功能之间的因果关系.
- 使用门德尔随机化 (MR) 来评估这些关联.
主要方法:
- 采用了使用全基因组关联研究 (GWAS) 总结统计的门德尔随机化 (MR).
- 分析了来自ThyroidOmics联盟的甲状腺刺激激素 (TSH) 和自由甲状腺素 (FT4) 的数据.
- 评估认知功能指标,包括认知表现,前性记忆,反应时间和来自大型队列的流体智能 (SSGAC,英国生物银行).
- 使用反变量加权 (IVW) 分析,支持加权中位数,MR-Egger和MR-Pleiotropy残余和异常值方法.
- 进行了敏感性分析,以检测异质性和质性.
主要成果:
- 基因预测TSH在参考范围内的增加显示出与认知能力下降 (P=0.017) 的暗示性关联以及与更长的反应时间 (P=0.004) 的显著关联.
- 在参考范围内的基因预测的FT4水平与更短的反应时间 (P=4.85×10−5) 有显著的关联.
- 敏感性分析证实了这些发现的可靠性.
结论:
- 在正常参考范围内的甲状腺功能可能会影响认知能力.
- 在参考范围内降低甲状腺功能可能会对认知表现和反应时间产生负面影响.
- 需要进一步的研究来阐明甲状腺功能和认知关系的确切性质.
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