{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T09:33:03Z","timestamp":1770283983908,"version":"3.49.0"},"reference-count":37,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2012,6,27]],"date-time":"2012-06-27T00:00:00Z","timestamp":1340755200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["bpspubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["British J Pharmacology"],"published-print":{"date-parts":[[2012,7]]},"abstract":"<jats:p><jats:bold>BACKGROUND AND PURPOSE<\/jats:bold>Resveratrol is a polyphenol abundantly found in grape skin and red wine. In the present study, we investigated whether resveratrol exerts protective effects against cardiac ischaemia\/reperfusion and also explored its mechanisms.<\/jats:p><jats:p><jats:bold>EXPERIMENTAL APPROACH<\/jats:bold>Infarct size and functional recovery in rat isolated perfused hearts subjected to no\u2010flow global ischaemia followed by reperfusion were measured. Cultured neonatal rat cardiomyocytes were exposed to H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>(100\u2003\u00b5mol\u00b7L<jats:sup>\u22121<\/jats:sup>) to induce cell injury. Intracellular ion concentrations were measured using specific dyes. Western blotting was used to quantify protein expression levels.<\/jats:p><jats:p><jats:bold>KEY RESULTS<\/jats:bold>In rat isolated perfused hearts, treatment with resveratrol (20 and 100\u2003\u00b5mol\u00b7L<jats:sup>\u22121<\/jats:sup>) 15\u2003min before ischaemia considerably improved left ventricular functional recovery and infarct size. In cultured neonatal rat cardiomyocytes, resveratrol significantly attenuated the increase in reactive oxygen species (ROS) and loss of mitochondrial inner membrane potential. Resveratrol also suppressed the increase in intracellular concentrations of Na<jats:sup>+<\/jats:sup>([Na<jats:sup>+<\/jats:sup>]<jats:sub>i<\/jats:sub>) and Ca<jats:sup>2+<\/jats:sup>([Ca<jats:sup>2+<\/jats:sup>]<jats:sub>i<\/jats:sub>) after H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>application; however, it did not suppress the ouabain\u2010induced [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>i<\/jats:sub>increase. By measuring changes in intracellular pH recovery after acidification, we also confirmed that acid\u2010induced activation of the Na<jats:sup>+<\/jats:sup>\u2010H<jats:sup>+<\/jats:sup>exchanger (NHE) was prevented by pretreatment with resveratrol. Furthermore, resveratrol inhibited the H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub>\u2010induced translocation of PKC\u2010\u03b1 from the cytosol to the cell membrane; this translocation is believed to activate NHE.<\/jats:p><jats:p><jats:bold>CONCLUSION AND IMPLICATIONS<\/jats:bold>Resveratrol exerts cardioprotection by reducing ROS and preserving mitochondrial function. The PKC\u2010\u03b1\u2010dependent inhibition of NHE and subsequent attenuation of [Ca<jats:sup>2+<\/jats:sup>]<jats:sub>i<\/jats:sub>overload may be a cardioprotective mechanism.<\/jats:p>","DOI":"10.1111\/j.1476-5381.2012.01877.x","type":"journal-article","created":{"date-parts":[[2012,1,31]],"date-time":"2012-01-31T10:13:30Z","timestamp":1328004810000},"page":"1745-1755","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Inhibition of Na<sup>+<\/sup>\u2010H<sup>+<\/sup>exchange as a mechanism of rapid cardioprotection by resveratrol"],"prefix":"10.1111","volume":"166","author":[{"given":"Luong 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