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- W899236430 abstract "The investigated the effects of Dengzhan Xixin on brain water content, blood-brain barrier (BBB) permeability, T2-weighted imaging (T2WI), metabolites and the lesion ratio after cerebral ischemia-reperfusion injuries (IRI).The 65 rats were randomly individed into three groups, the sham-operated group, the ischemia-reperfusion group and the Dengzhan Xixin treatment group. The models of ischemia-reperfusion of middle cerebral artery in rats were established by placing an intraluminal suture. The Dengzhan Xixin treatment group were injected 10% Dengzhan Xixin injection 22.5 mg kg(-1) after ischemia 1.5 h. The sh am-operated group (n=5) were sacrificed on 1 to measure brain water content and BBB permeability. The rats of the ischemia-reperfusion group (n=30) and the Dengzhan Xixin treatment group (n=30) were sacrificed at reperfusion for 6 h, 12 h, 1 d, 2 d, 4 d, 7 d, respectively, after ischemia 1.5 h. The additional 35 rats were individed into the same three groups. The changes of T2WI and metabolites in the brain were observed, and rats were sacrificed at reperfusion for 1 d, 2 d, 4 d after ischemia 1.5 h to determine the lesion ratio by TTC.In the ischemia-reperfusion group, brain water content(77.93+/-0.68)% and BBB permeability (3.77+/-0.28) increased after reperfusion for 6 h. The peak time of brain water content was at 4 d (83.82+/-0.49)% and BBB permeability was at 2 d (5.51+/-0.24)%. In the ischemia-reperfusion group and the Dengzhan Xixin treatment group, there were hyperintense signals in the injury region of T2WI. In the ischemia-reperfusion group after reperfusion for 1 d, the ratio of NAA/Cr decreased and Cho/Cr increased. In the Dengzhan Xixin treatment group, the ratio of NAA/Cr increased and Cho/Cr decreased. In the treatment group, the lesion ratio decreased by TTC was 16.78+/-1.45 and in the ischemia-reperfusion group was 21.27+/-1.73 at 2 d.Dengzhan Xixin may relieve cerebral ischemia-reperfusion injury by influencing the metabolites of brain, stabilizing BBB and decreasing brain edema." @default.
- W899236430 created "2016-06-24" @default.
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- W899236430 date "2009-01-01" @default.
- W899236430 modified "2023-09-23" @default.
- W899236430 title "[Effects of Dengzhan Xixin on blood-brain barrier permeability and metabolites after cerebral ischemia-reperfusion injuries]." @default.
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