Li Xinying, Liu Xiaoning, Chen Xiaojuan, Wang Yanqi, Wu Shuning, Li Fengjuan, Su Yuhao, Chen Lifang, Xiao Jian, Ma Jianping, Qin Pei
Center for Clinical Epidemiology and Evidence-Based Medicine, Shenzhen Qianhai Shekou Free Trade Zone Hospital, Shenzhen, Guangdong, China.
School of Public Health, Shantou University, Shantou, Guangdong, China.
iScience. 2024 Jul 17;27(9):110522. doi: 10.1016/j.isci.2024.110522. eCollection 2024 Sep 20.
Increasing cohort studies have examined the link between mitochondrial DNA copy number (mtDNA-CN) and cardiovascular disease (CVD), with inconsistent findings. We searched PubMed, EMBASE, and Web of Science up to July 11, 2023 and used a random-effects model to calculate summary hazard ratios (HRs) and 95% confidence intervals (CIs). This systematic review and meta-analysis included 8 articles encompassing 29 studies with 646,398 participants. Individuals with the lowest mtDNA-CN had a summary HR of 1.27 (95% CI 1.02-1.59) for CVD, 1.18 (95% CI 0.92-1.50) for coronary heart disease (CHD), 1.10 (95% CI 0.89-1.37) for stroke, and 1.30 (95% CI 1.07-1.56) for heart failure (HF). Decreased mtDNA-CN is linked to an increased risk of CVD and HF but not CHD and stroke. These findings suggest mtDNA-CN from leukocytes may be a potential early biomarker for CVD. However, more prospective studies with long follow-up are needed.
越来越多的队列研究探讨了线粒体DNA拷贝数(mtDNA-CN)与心血管疾病(CVD)之间的联系,但结果并不一致。我们检索了截至2023年7月11日的PubMed、EMBASE和Web of Science数据库,并使用随机效应模型计算汇总风险比(HR)和95%置信区间(CI)。这项系统评价和荟萃分析纳入了8篇文章,涵盖29项研究,共646,398名参与者。mtDNA-CN最低的个体发生CVD的汇总HR为1.27(95%CI 1.02-1.59),冠心病(CHD)为1.18(95%CI 0.92-1.50),中风为1.10(95%CI 0.89-1.37),心力衰竭(HF)为1.30(95%CI 1.07-1.56)。mtDNA-CN降低与CVD和HF风险增加有关,但与CHD和中风无关。这些发现表明,白细胞中的mtDNA-CN可能是CVD的一种潜在早期生物标志物。然而,需要更多长期随访的前瞻性研究。