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线粒体氧化酸化的心肌容量,以应对长时间的电磁应力

Lesia Savchenko^1,2,3, Ilenia Martinelli^1,2, Dimitri Marsal^1,2

¹National Institute of Health and Medical Research (INSERM) U1297, Toulouse, France.

Frontiers in cardiovascular medicine

|June 23, 2023

概括

在小鼠中长时间暴露于电磁场 (EMF) 改变了心脏线粒体氧化酸化 (OXPHOS) 通过增加特定蛋白质子单元. 然而,氧化应激标志物或心脏结构没有显著变化.

科学领域:

心血管生物学心血管生物学
线粒体生理学线粒体生理学
电磁场效应电磁场效应

背景情况:

线粒体对于通过氧化酸化 (OXPHOS) 通过腺三酸盐 (ATP) 产生心脏能量至关重要.
线粒体还在细胞对环境压力因素的反应中发挥作用.
了解电磁场 (EMF) 对心脏线粒体的影响对公共健康至关重要.

研究的目的:

研究长时间电磁应激对心肌中线粒体OXPHOS系统的影响.
为了评估长时间暴露于电磁场后心脏的结构变化.

主要方法:

小鼠被暴露在915MHz电磁场 (EMF) 中28天以诱导长时间的电磁压力.
线粒体OXPHOS容量通过测量OXPHOS子单元的蛋白质表达来分析.
用海马XF24分析仪评估心脏线粒体呼吸功能.

主要成果:

电磁场暴露导致OXPHOS系统的复合I,II,III和IV子单元的心脏蛋白表达显著增加.
长时间的电磁压力改变了线粒体呼吸功能.
在氧化应激标志物 (马隆迪化物) 或抗氧化酶 (超氧化物脱酶2) 表达中没有发现显著变化.
在暴露于EMF的小鼠的左心室中没有检测到结构或功能异常.

结论:

长时间暴露于EMF可以调节心脏OXPHOS系统,影响线粒体的氧化代谢.
尽管OXPHOS成分发生了变化,但在本研究中,电磁场暴露并没有引起显著的氧化应激或心脏结构损伤.

关键词:

电磁应力是指电磁应力.心灵的心灵心灵的心灵心灵的心灵代谢代谢代谢代谢氧化酸化是一种氧化酸化.超氧化物脱酶的作用

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