Effects of bFGF on expression of CREB in hippocampus and cortex during cerebral ischemia and reperfusion in rats
Chao Zeng
Abstract
Chao Zeng
Abstract
AIM:To investigate the expression of cyclic AMP response element binding protein(CREB)in hippocampus and cortex after cerebral ischemia and reperfusion in rats and to explore the regulative effects of basic fibroblast growth factor(bFGF)on CREB in brain tissue and its mechanism.METHODS:The rat models of middle cerebral arteries occlusion(MCAO)were established with intraluminal filament blockade.The expression of CREB and apoptosis of neurons in hippocampus and cortex were detected with immunohistochemistry and TUNEL method respectively.RESULTS:The expression of CREB in hippocampus and cortex decreased after cerebral ischemia and reperfusion.In bFGF group,the expression of CREB increased while cell apoptosis decreased.CONCLUSION:bFGF depresses cell apoptosis,participates in the regulation of CREB expression in ischemic neurons and protects ischemic neurons.
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AIM:To investigate the expression of cyclic AMP response element binding protein(CREB)in hippocampus and cortex after cerebral ischemia and reperfusion in rats and to explore the regulative effects of basic fibroblast growth factor(bFGF)on CREB in brain tissue and its mechanism.METHODS:The rat models of middle cerebral arteries occlusion(MCAO)were established with intraluminal filament blockade.The expression of CREB and apoptosis of neurons in hippocampus and cortex were detected with immunohistochemistry and TUNEL method respectively.RESULTS:The expression of CREB in hippocampus and cortex decreased after cerebral ischemia and reperfusion.In bFGF group,the expression of CREB increased while cell apoptosis decreased.CONCLUSION:bFGF depresses cell apoptosis,participates in the regulation of CREB expression in ischemic neurons and protects ischemic neurons.
Key concepts: CREB, Hippocampus, Ischemia, Basic fibroblast growth factor, TUNEL assay, Apoptosis, Medicine, Cerebral cortex