Effect of ischemic postconditioning on phosphatidylinositol-3-OH kinase and extracellular signal-regulated protein kinase in rats with hepatic ischemia-reperfusion injury / 南方医科大学学报
Journal of Southern Medical University
; (12): 677-680, 2012.
Article
in Zh
| WPRIM
| ID: wpr-269023
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To observe the effect of ischemic postconditioning on phosphatidylinositol-3-OH kinase (PI3K) and extracellular signal-regulated protein kinase 1/2(ERK1/2) in rats after hepatic ischemia reperfusion in rats and investigate the mechanism of ischemic postcoditioning of the liver.</p><p><b>METHODS</b>Three cycles of 1 min-off-1 min-on ischemic postconditioning regime were used in a rat model of 70% hepatic ischemia-reperfusion injury. The changes in the liver function, hepatocyte apoptosis, phosphorylation of Akt and ERK1/2 were assessed in rats treated with sham operation, LY294002+sham operation (LY+S), PD98059+sham operation (PD+S), ischemia reperfusion (IR), ischemic postconditioning (IPO), LY294002+ ischemic postconditioning (LY+IPO), or PD98059+ischemic postconditioning (PD+IPO).</p><p><b>RESULTS</b>Ischemic postconditioning significantly alleviated hepatic ischemia-reperfusion-induced liver function injury and hepatocyte apoptosis and increased phosphorylation of Akt and ERK1/2. LY294002 and PD98059 antagonized the effects of ischemic postconditioning in the liver.</p><p><b>CONCLUSION</b>Activation of PI3K and ERK1/2 may mediate the protective effect of ischemic postconditioning against hepatic ischemia- reperfusion injury in rats.</p>
Full text:
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Index:
WPRIM
Main subject:
Pharmacology
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Flavonoids
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Reperfusion Injury
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Morpholines
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Chromones
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Rats, Sprague-Dawley
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Phosphatidylinositol 3-Kinases
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Extracellular Signal-Regulated MAP Kinases
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Ischemic Postconditioning
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Liver
Limits:
Animals
Language:
Zh
Journal:
Journal of Southern Medical University
Year:
2012
Type:
Article