Journal
ASIAN PACIFIC JOURNAL OF TROPICAL MEDICINE
Volume 6, Issue 2, Pages 156-158Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S1995-7645(13)60014-0
Keywords
Salidroside; Cerebralischemia reperfusion; Blood brain barrier; Cytokine
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Objective: To observe changes in expression of tumor necrosis factor (TNF)-alpha and permeability of blood brain barrier after salidroside pretreatment in rats with injury induced by focal cerebralischemia-reperfusion. Methods: Forty-five male SD rats were randomly divided into three groups (n=15): control group, ischemia-reperfusion (IR) model group, and salidroside pretreatment group. Before the IR model establishment, the rats in the salidroside pretreatment group were intraperitoneally administered with salidroside at a dose of 24 mg/(kg.d) for 7 d. After 30 mm post the last administration, the IR model was induced by occlusion of middle cerebral artery with a filament. After 24 h post the operation, the water content and Evens blue content in the ischemia cerebral hemisphere were determined, and the level of TNF-alpha mRNA was detected by the semi quantitative RT-PCR. Results: Compared with the IR model group, the salidroside pretreatment group had significantly lower (P<0.05) water content and Evens blue content in the ischemia cerebral hemisphere and also had significantly lower (P<0.05) level of TNF-alpha in the ischemic cerebral cortex tissue. Conclusions: The salidroside pretreatment alleviated the focal cerebralischemia-reperfusion injury in the rat model, possibly by decreasing the permeability of blood brain barrier, attenuating brain edema and reducing TNF-alpha expression.
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