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Journal of Xi'an Jiaotong University(Medical Sciences) ; (6): 372-377, 2016.
Artículo en Chino | WPRIM | ID: wpr-492592

RESUMEN

Objective To evaluate the effect and mechanism of rt-PA combined with high pressure oxygen (HPO)on cerebral ischemia-reperfusion injury in rats.Methods The model of cerebral ischemia-reperfusion injury was constructed by using middle cerebral artery occlusion.The neurological function score;brain index,water content and infarction volume;SOD;LDH;NOS;MDA;LD;NO and NOS were measured.The protein and mRNA expressions of iNOS,BDNF,p75NTR and TrkB were also detected by RT-PCR and Western blot to evaluate and compare the protective effect of rt-PA combined HPO therapy. Results rt-PA combined HPO could significantly decrease the neurological function score;brain index,water content,and infarction volume;SOD;NOS;MDA;LD;NO and NOS but increase LDH content and the weight of rats,compared with rt-PA.In addition,rt-PA combined HPO could increase BNDF and TrKB expressions and downregulate the expressions of iNOS and p75NTR,compared with rt-PA (P<0.05).Conclusion The rt-PA combined HPO therapy has a greater protective effect than rt-PA therapy and its mechanism might be related to having antioxidant effects, increasing the expressions of BDNF and TrKB,and decreasing the expressions of iNOS and p75NTR.

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