Can isoflurane mimic ischaemic preconditioning in isolated rat heart?
نویسندگان
چکیده
منابع مشابه
ischaemic preconditioning in isolated rat heart
Objective: To assess whether the protective effect of ischaemic preconditioning (IPC) on endothelial function in coronary arteries of the rat involves prostaglandins. Methods: Isolated rat hearts perfused under constant flow conditions were exposed to 30 min of partial ischaemia (flow-rate 1 ml /min) followed by 20 min of reperfusion, after which coronaries were precontracted with U-46619 0.1 m...
متن کاملImproved functional recovery by ischaemic preconditioning is not mediated by adenosine in the globally ischaemic isolated rat heart.
OBJECTIVE A brief period of ischaemia (5 min) and reperfusion (5 min), prior to a longer period of ischaemia and reperfusion, has been shown to reduce the extent of injury (necrosis, arrhythmias, or postischaemic contractile malfunction) caused by a subsequent longer period of ischaemia and reperfusion. Adenosine has been identified as a factor in the protection afforded against regional tissue...
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Metabolic events during ischaemia are probably important in determining post-ischaemic myocardial recovery. The aim of this study was to assess the effects of the beta-blocker atenolol and the high energy demand in an ischaemia-reperfusion model free of neurohormonal and vascular factors. We exposed Langendorff-perfused isolated rat hearts to low-flow ischaemia (30 min) and reflow (20 min). Thr...
متن کاملPhenylephrine produces late pharmacological preconditioning in the isolated rat heart.
We assume that phenylephrine produces late pharmacological preconditioning through the opening of the mitochondrial KATP channels. To test this hypothesis, rat hearts were isolated and perfused with Krebs buffer solution by Langendorff method and subjected to 30 min regional ischemia followed by 60 min of reperfusion. In this study, phenylephrine as a selective alpha1-adrenoceptor agonist and 5...
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The powerful cardioprotective actions of melatonin, the chief secretory product of the pineal gland, have been attributed largely to its free radical-scavenging properties. Free radicals play an important role in the triggering action of ischaemic preconditioning, the phenomenon whereby exposure of the heart to one or more short episodes of ischaemia leads to protection against a subsequent lon...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 2001
ISSN: 0007-0912
DOI: 10.1093/bja/86.2.269