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- W3032322013 abstract "Objective To investigate the effect of curcumin pretreatment on endoplasmic reticulum stress induced by global cerebral ischemia-reperfusion (I/R) in rats. Methods One hundred forty-four male SD rats weighing 200-250 g were randomly divided into 4 groups (n = 36 each): sham operation group (group S) ; I/Rgroup; curcumin group (group Cur) and vehicle control group (group VC). Global cerebral I/R was produced by four-vessel occlusion technique in S, I/R, Cur, VC groups. Bilateral vertebral arteries were cauterized. Bilateral common carotid arteries were occluded by clipping for 15 min. Curcumin 200 mg/kg was injected intraperitoneally (IP) at 1 h before cerebral ischemia. Global cerebral ischemia was confirmed by unconsciousness and disappearance of papillary and righting reflex. Animals were sacrificed at 12 h, 1,3 and 7 d of reperfusion. Neuronal apoptosis in hippocampal CA1 region was detected by TUNEL assay. Apoptosis index (AI) was calculated. The expression of glucose regulated protein 78 (GRP78) ,growth arrest and DNA damage inducible gene 153 (GADD153) and caspase-12 protein in hippocampal region was assessed by Western blot analysis. Results Cerebral I/R significantly increased AI and GRP78 and caspase-12 protein expression in hippocampus as compared with group S( P 0.05) . Conclusion Curcumin pretreatment can significantly reduce global cerebral I/R-induced neuronal apoptosis in hippocampus by increasing GRP78 expression and decreasing easpase-12 expression in hippocampus.Key words: Curcumin; Reperfusion injury; Endoplasmic reticulum; Stress; Brain" @default.
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- W3032322013 date "2011-02-20" @default.
- W3032322013 modified "2023-09-23" @default.
- W3032322013 title "Effect of curcumin pretreatment on endoplasmic reticulum stress induced by global cerebral ischemia-reperfusion in rats" @default.
- W3032322013 doi "https://doi.org/10.3760/cma.j.issn.0254-1416.2011.02.030" @default.
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