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- W3032142023 abstract "Objective To investigate the effect of songling xuemaikang pretreatment on the expression of tumor necrosis factor-α (TNF-α after focal cerebral ischemia-reperfusion in rats. Methods Sixty male Sprague-Dawiey rats were randomly allocated into songling xuemaikang (SL-xmk) pretreatment, sham-operation, and control groups. The SL-xmk pretreatment group was treated with SL-xmk (937.5 mg/kg) suspension for preventive garage in rats for 2, 4, and 8 weeks (n = 12 in each group); the sham-operation (n = 12) and control (n = 12) groups were treated with equal volume of saline for preventive garage. At the end of the pretreatment process, a model of middle cerebral artery occlusion (MCAO) in rats was induced by suture method. The effects of SL-xmk on neurological deficit score, brain water content, and volume of infarction of the MCAO rats at different time course for prevention were observed. Enzyme-linked immunosorbent assay (ELISA) was used to determine serum TNF-α concentration, and immunohistochemical staining was used to detect TNF-α immunoreactive positive cell in ischemic brain tissue. Results After the different time course of SL-xmk pretreatment, the neurological deficit scores of MCAO in rats were all decreased slightly. The numbers of TNF-α positive cells in brain tissue in the pretreatment 2-, 4-, and 8-week groups were 1.92 ± 0.42, 1.63 ± 0.43, and 1.17 ± 0.25, respectively, and they were significantly lower than 2.37 ± 0.38 (all P =0. 000); The numbers of TNF-α positive cells in brain tissue in the pretreatment 2-,4-, and 8-week groups were 19.0 ± 2.19, 17.33 ± 2.07, and 13.17 ± 2.32/mm, respectively, and they significantly less than 24.67 ± 2.50/mm in the control group; and he numbers of TNF-α positive cells in brain tissue in the pretreatment 8-week group was significantly less than those in the pretreatment 2- and 4-week groups (all P 〈0.05); the serum TNF-α levels at pretreatment 2, 4, and 8 weeks were 57.55 ± 3.27, 54. 10 ± 3.11, and 45.92 ±3.32 ng/ml, respectively, and they were significantly lower than 77.15 ± 6.19 ng/ml in the control group (all P =0. 000); The ischemic brain water content in the pretreatment 2-, 4-, and 8-week groups were 77.67 ± 5.46%, 76.63 ± 5.31%, and 75.37 ± 5.25%, respectively, and they were significantly lower than 89.31 ± 7.65 % in the control group (P = 0.04, 0. 028 and 0. 018, respectively); The percentage of infarct volume in the pretreatment 2-, 4-, and 8-week groups were 25.39 ± 2.28%, 24.73 ± 2.26%, and 21.38 ± 2.23%, respectively, and they were significantly lower than 29.52 ±2.98% in the control group (P = 0. 044, 0. 024, and 0.00 l, respectively). Conclusions SL-xmk pretreatment may significantly inhibit the expression of TNF-α, alleviate neurological deficits, and reduce brain water content and infarct volume after cerebral ischemia-reperfusion in rats.Key words: Brain ischemia; Reperfusion injury; Tumor necrosis factory; Songling Xuemaikang; Rats" @default.
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- W3032142023 date "2010-07-15" @default.
- W3032142023 modified "2023-09-27" @default.
- W3032142023 title "Effect of songling xuemaikang pretreatment on the expression of tmnor necrosis factor-α after cerebral ischemia-reperfusion in rats" @default.
- W3032142023 doi "https://doi.org/10.3760/cma.j.issn.1673-4165.2010.07.003" @default.
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