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急性心理压力对无血细胞线粒体DNA (cf-mtDNA) 的影响:一个交叉实验研究

Caroline Trumpff¹, David Shire¹, Seonjoo Lee²

¹Department of Psychiatry, Division of Behavioral Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA.

Psychoneuroendocrinology

|October 23, 2025

概括

心理压力会增加焦虑和皮质醇. 然而,IL-6和无细胞线粒体DNA (cf-mtDNA) 在压力和控制条件下都增加,表明对实验室程序的非特异性反应.

科学领域:

心理神经免疫学心理神经免疫学
压力生理学压力生理学
分子生物学分子生物学

背景情况:

急性心理压力与细胞自由线粒体DNA (cf-mtDNA) 和促炎细胞因子的增加有关.
之前的研究缺乏休息控制来区分压力影响和实验室程序.

研究的目的:

与对照条件相比,研究对社会评估性压力因素的心理生物学反应.
检查压力对神经内分泌,炎症和cf-mtDNA标记物的独立和联合影响.

主要方法:

一个交叉试验,72名参与者在不同的场合接受5分钟的语言任务 (压力) 或休息 (控制).
血液样本在10个时间点收集,以测量皮质醇,甲醇胺,IL-6,IL-10,TNF-ɑ,以及血/血清cf-mtDNA.
评估情绪,心血管和神经内分泌对压力因素的反应.

主要成果:

压力因素显著增加了焦虑,心率,血压,皮质醇和上腺素.
在压力和对照条件下,IL-6和血cf-mtDNA随着时间的推移而增加.
血cf-mtDNA表现出双相反应,在两种条件下都观察到显著增加,表明非特异性影响.

结论:

社会评估压力有选择性地影响情绪,心血管和神经内分泌系统.
IL-6和血cf-mtDNA的增加似乎是对实验室协议的非特异性反应,而不仅仅是对压力因素本身.
cf-mtDNA和促炎细胞因子是独立调节的,在这些条件下可能不会直接相互关联.

关键词:

急性心理压力是急性心理压力.没有细胞的线粒体DNA (cf-mtDNA)控制条件控制条件控制条件在IL6 IL6 IL6 IL6 IL6 线粒体中的线粒体.支持炎症的细胞因子

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