Novel insights into exhaustive exercise-induced myocardial injury: Focusing on mitochondrial quality control

作者：Mingyue Shi, Zhao Dong, Kai Zhao, Xiaole He, Yang Sun, Jun Ren, Wei Ge · 发表于：Frontiers in Cardiovascular Medicine · 年份：2022 · DOI：10.3389/fcvm.2022.1015639 · 被引用次数：9 · 研究领域：Mitochondrial Function and Pathology、Cardiovascular Effects of Exercise、Cardiovascular Function and Risk Factors

Regular moderate-intensity exercise elicits benefit cardiovascular health outcomes. However, exhaustive exercise (EE) triggers arrhythmia, heart failure, and sudden cardiac death. Therefore, a better understanding of unfavorable heart sequelae of EE is important. Various mechanisms have been postulated for EE-induced cardiac injury, among which mitochondrial dysfunction is considered the cardinal machinery for pathogenesis of various diseases. Mitochondrial quality control (MQC) is critical for clearance of long-lived or damaged mitochondria, regulation of energy metabolism and cell apoptosis, maintenance of cardiac homeostasis and alleviation of EE-induced injury. In this review, we will focus on MQC mechanisms and propose mitochondrial pathophysiological targets for the management of EE-induced myocardial injury. A thorough understanding of how MQC system functions in the maintenance of mitochondrial homeostasis will provide a feasible rationale for developing potential therapeutic interventions for EE-induced injury.