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- W2085414286 abstract "Propofol attenuates mechanical dysfunction, metabolic derangement, and lipid peroxidation by exogenous administration of H2O2 in the Langendorff rat heart. In this study, we examined the effects of propofol on mechanical and metabolic changes, as well as on lipid peroxidation induced by ischemia-reperfusion, in isolated, working rat hearts. Rat hearts (in control-modified Krebs-Henseleit bicarbonate buffer) were treated with two doses (25 microM and 50 microM) of propofol in an intralipid vehicle. In the first protocol, propofol was administered during the preischemic and reperfusion period, whereas in the second, it was only administered during the reperfusion period. Ischemia (15 min) decreased peak aortic pressure (PAOP), heart rate (HR), rate-pressure product (RPP), coronary flow (CF), and tissue concentrations of adenosine triphosphate (ATP) and creatine phosphate. After postischemic reperfusion (20 min), the CF and tissue concentration of ATP recovered incompletely; however, PAOP, HR, and RPP did not. Ischemia-reperfusion also increased the tissue concentration of malondialdehyde (MDA). In both protocols, both doses of propofol enhanced recovery of PAOP, HR, RPP, CF, and tissue concentration of ATP during reperfusion, and inhibited the tissue accumulation of MDA. These results indicate that propofol improves recovery of mechanical function and the energy state in ischemic reperfused isolated rat hearts, and the mechanism may involve the reduction of lipid peroxidation during postischemic reperfusion.We evaluated the possible cardioprotective effects of propofol in isolated, working rat hearts subjected to 15-min ischemia, followed by 20-min reperfusion. We observed that propofol attenuated mechanical dysfunction, metabolic derangement, and lipid peroxidation during reperfusion. This latter finding seems to be one mechanism for cardioprotective effects of propofol." @default.
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- W2085414286 date "1998-02-01" @default.
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- W2085414286 title "Propofol Improves Functional and Metabolic Recovery in Ischemic Reperfused Isolated Rat Hearts" @default.
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- W2085414286 doi "https://doi.org/10.1097/00000539-199802000-00006" @default.
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