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动脉粥样硬化及其所引起的心肌梗死、脑卒中、冠状动脉粥样硬化性心脏病(冠心病)等是导致老年人病死率增加的重要原因。 DNA损伤是激活DNA损伤修复路径导致细胞早衰的重要原因，而动脉粥样硬化中存在DNA损伤及DNA损伤修复机制参与的证据。糖尿病作为心血管疾病危险因素具有导致DNA损伤，从而加速血管老化的作用。该文综述了动脉粥样硬化疾病中DNA损伤和DNA双链损伤修复机制的研究进展，从而为防治动脉粥样硬化疾病提供新的思路。“,”Atherosclerosis and the subsequent cardiovascular complications such as myocardial infarc-tion,stroke,and coronary atherosclerotic heart disease are major causes of death among the elderly. DNA damage is the cause of the activation of the DNA damage repair pathway resulting in cell senescence,and the evidence that DNA damage and DNA damage repair mechanism participate in the process of atherosclerosis has been found in some studies. Diabetes,as a risk factor of cardiovascular disease,can lead to DNA damage, so as to accelerate the aging of blood vessels. Here is to make a review of the research development of DNA damage and DNA double strand damage repair mechanism,to provide a new method to prevent and treat ath-erosclerosis.