RESUMEN
Objective To investigate the influence of transforming growth factor ? 1 to expression of tumor necross factor ?(TNF ?) after cerebral ischemic reperfusion injury.Methods Using thread embolism method to develop the model of focal cerebral ischemic reperfusive injury in rats, different dose of TGF ? 1 or 0 9% NaCl was injected intracerebroventricularly.Neurological functional dificit scales in the different dose of TGF ? 1 groups and the expression of TNF ? were observed Results In both big and small dose of TGF ? 1 groups,the expression of TNF ? decreased after cerebral ischemic reperfusion,and the neurological functional dificit scales were significantly lower than those of the control.There was no significant difference between the group of big and small dose of TGF ? 1 Conclusion TGF ? 1 may have a protective effect on cerebral ischemic reperfusive injury by inhibiting expression of TNF ?,and it may be irrelative with the dose