{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T04:28:41Z","timestamp":1779337721597,"version":"3.51.4"},"reference-count":42,"publisher":"SAGE Publications","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["CH"],"published-print":{"date-parts":[[2021,8,3]]},"abstract":"<jats:p>BACKGROUND: Ischemia reperfusion usually results in certain degree of damage to the myocardium, which is called myocardial ischemia\/reperfusion (I\/R) injury. OBJECTIVE: Previous studies have found that Sirt1 plays a critical role in I\/R injury by protecting cardiac function. SRT1460 is the activator for Sirt1 that participates in the regulation of various diseases. However, whether SRT1460 has any effects on myocardial I\/R injury needs further study. METHODS: The I\/R rat model and H\/R H9C2 model were established to simulate myocardial I\/R injury. The infarct area of the rat heart was examined through TTC staining. The EF and FS of rats were detected through echocardiography. The levels of CK-MB, LDH, MDA, SOD and CK in cardiac tissues, serum or H9C2 cells were measured using commercial kits. Cell viability was assessed through MTT assay. Apoptosis was determined through flow cytometry analysis. Sirt1 expression was measured through western blot. RESULTS: Our work found that SRT1460 reduced the infarct area of the heart induced by myocardial I\/R injury. In addition, SRT1460 was confirmed to ameliorate cardiac dysfunction induced by myocardial I\/R injury. Further exploration discovered that SRT1460 weakened oxidative stress induced by myocardial I\/R injury. Findings from in vitro assays demonstrated that SRT1460 relieved injury of H\/R-treated H9C2 cells. Finally, rescue assays proved that Sirt1 knockdown reversed the protective effects of SRT1460 on the injury of H\/R-treated H9C2 cells. CONCLUSION: Sirt1 activated by SRT1460 protected against myocardial I\/R injury. This discovery may offer new sights on the treatment of myocardial I\/R injury.<\/jats:p>","DOI":"10.3233\/ch-201061","type":"journal-article","created":{"date-parts":[[2021,3,5]],"date-time":"2021-03-05T12:16:08Z","timestamp":1614946568000},"page":"271-281","source":"Crossref","is-referenced-by-count":13,"title":["Sirtuin 1 activated by SRT1460 protects against myocardial ischemia\/reperfusion injury"],"prefix":"10.1177","volume":"78","author":[{"given":"Shanjun","family":"Zhao","sequence":"first","affiliation":[{"name":"Department of Ward 1 of Cardiovascular Medicine, Panyu Central Hospital, Guangzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China"},{"name":"Department of Cardiovascular Medicine, The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, 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