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Regular Dipyridamole Therapy Produces Sustained Protection Against Cardiac Ischemia-Reperfusion Injury: Is It Time To Revisit Paris?, Vincent M. Figueredo, M.D., Chika Okusa, Kazuhiro Kaneda, Yoshitaka Inamura, Masami Miyamae
Regular Dipyridamole Therapy Produces Sustained Protection Against Cardiac Ischemia-Reperfusion Injury: Is It Time To Revisit Paris?, Vincent M. Figueredo, M.D., Chika Okusa, Kazuhiro Kaneda, Yoshitaka Inamura, Masami Miyamae
Division of Cardiology Faculty Papers
BACKGROUND: Increased activated Akt and eNOS expression coincide with this persistent cardioprotection. Emergent coronary reperfusion therapies are rarely carried out before considerable myocardial injury has occurred. Moreover, reperfusion after prolonged ischemia produces paradoxical ischemia-reperfusion injury, attenuating the efficacy of reperfusion therapies. This has provided impetus for identifying chronic therapies to protect against ischemia-reperfusion injury in those at risk. We previously found that regular dipyridamole therapy produces a chronic preconditioning-like effect mediated through adenosine A1 receptors.
METHODS: To determine how long this chronic preconditioning effect of dipyridamole remains present after discontinuing therapy, guinea pigs received 4 mg/kg/day in their water for …