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IJEB Vol.45(03) [March 2007] >


Title: Remote ischaemic preconditioning and prevention of cerebral injury
Authors: Rehni, Ashish K
Shri, Richa
Singh, Manjeet
Keywords: Cerebral injury
Ischaemic preconditioning
Reperfusion
Issue Date: Mar-2007
Publisher: CSIR
Abstract: Bilateral carotid artery occlusion of 10 min followed by reperfusion for 24 hr was employed in present study to produce ischaemia and reperfusion induced cerebral injury in mice. Cerebral infarct size was measured using triphenyltetrazolium chloride staining. Short-term memory was evaluated using elevated plus maze. Inclined beam walking test was employed to assess motor incoordination. Bilateral carotid artery occlusion followed by reperfusion produced cerebral infarction and impaired short-term memory, motor co-ordination and lateral push response. A preceding episode of mesenteric artery occlusion for 15 min and reperfusion of 15 min (remote mesenteric ischaemic preconditioning) prevented markedly ischaemia-reperfusion-induced cerebral injury measured in terms of infarct size, loss of short-term memory, motor coordination and lateral push response. Glibenclamide (5 mg/kg, iv) a KATP channel blocker and caffeine (7 mg/kg, iv) an adenosine receptor blocker attenuated the neuroprotective effect of remote mesenteric ischaemic preconditioning. It may be concluded that neuroprotective effect of remote mesenteric ischaemic preconditioning may be due to activation of adenosine receptors and consequent activation of KATP channels in mice.
Page(s): 247-252
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.45(03) [March 2007]

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