白藜芦醇对小鼠局灶性缺血/再灌注后急性期的影响

被引:12
作者
董文鹏
章翔
高大宽
甄海宁
李斌
曹磊
林洪
霍军丽
机构
[1] 第四军医大学西京医院全军神经外科研究所
关键词
脑缺血/再灌注损伤; 白藜芦醇; 过氧化物酶体增殖物激活受体α; 血脑屏障;
D O I
暂无
中图分类号
R285 [中药药理学];
学科分类号
摘要
目的探讨白藜芦醇对小鼠局灶脑缺血后急性期的影响和机制。方法90只健康♂Balb/c小鼠。随机分为单纯缺血组、白藜芦醇组及非诺贝特组,各组均为30只。采用线栓法制备小鼠大脑中动脉阻断(MCAO)模型,缺血2h,再灌注24h后,2,3,5-氯化三苯基四氮唑(TTC)法观察梗死范围和水肿程度;Evansblue染色观察血脑屏障破坏程度;RT-PCR技术检测过氧化物酶体增殖物激活受体α的mRNA水平。结果白藜芦醇和非诺贝特能够减少脑梗死体积〔(43.80±5.31)mm3、(45.57±5.63)mm3vs(63.87±9.33)mm3,P<0.01)〕,减少Evansblue外渗的体积〔(58.66±4.65)mm3、(78.72±5.78)mm3vs(102.06±6.07)mm3,P<0.01)和含量(6.40±0.92)μg.g-1、(12.47±1.24)μg·g-1vs(15.25±1.51)μg·g-1,P<0.01)〕,增强过氧化物酶体增殖物激活受体α的表达〔(0.893±0.028)、(1.117±0.042)vs(0.467±0.013),P<0.01〕。结论白藜芦醇可能通过诱导过氧化物酶体增殖物激活受体α表达增高,减轻血脑屏障的损害,从而对脑缺血/再灌注损伤起到保护作用。
引用
收藏
页码:1032 / 1035
页数:4
相关论文
共 9 条
[1]   白黎芦醇对fMLP诱导中性白细胞与人脐静脉内皮细胞粘附的抑制作用及机制 [J].
杨迎暴 ;
罗景慧 ;
徐江平 ;
竹内和彦 ;
渡边裕司 .
中国药理学通报, 2007, (12) :1588-1593
[2]   PPARs与神经退行性疾病 [J].
张慧灵 ;
顾振纶 ;
秦正红 .
中国药理学通报, 2006, (04) :397-402
[3]   Erythropoietin prevents blood brain barrier damage induced by focal cerebral ischemia in mice [J].
Li, Ying ;
Lu, Zhong-Yang ;
Ogle, Molly ;
Wei, Ling .
NEUROCHEMICAL RESEARCH, 2007, 32 (12) :2132-2141
[4]  
Oxidative stress and inflammatory response evoked by transient cerebral ischemia/reperfusion: Effects of the PPAR-α agonist WY14643[J] . Massimo Collino,Manuela Aragno,Raffaella Mastrocola,Elisa Benetti,Margherita Gallicchio,Chiara Dianzani,Oliviero Danni,Christoph Thiemermann,Roberto Fantozzi.Free Radical Biology and Medicine . 2006 (4)
[5]   Brain protection by resveratrol and fenofibrate against stroke requires peroxisome proliferator-activated receptor α in mice [J].
Inoue, H ;
Jiang, XF ;
Katayama, T ;
Osada, S ;
Umesono, K ;
Namura, S .
NEUROSCIENCE LETTERS, 2003, 352 (03) :203-206
[6]   Protective effect of resveratrol against oxidative stress in middle cerebral artery occlusion model of stroke in rats [J].
Sinha, K ;
Chaudhary, G ;
Gupta, YK .
LIFE SCIENCES, 2002, 71 (06) :655-665
[7]   Resveratrol reduction of infarct size in Long-Evans rats subjected to focal cerebral ischemia [J].
Huang, SS ;
Tsai, MC ;
Chih, CL ;
Hung, LM ;
Tsai, SK .
LIFE SCIENCES, 2001, 69 (09) :1057-1065
[8]  
Resveratrol inhibits interleukin-6 production in cortical mixed glial cells under hypoxia/hypoglycemia followed by reoxygenation[J] . M.J Wang,H.M Huang,S.J Hsieh,K.C.G Jeng,J.S Kuo.Journal of Neuroimmunology . 2001 (1)
[9]  
Peroxisome proliferator-activated receptor-alpha activation as a mechanism ofpreventive neuroprotection induced by chronic fenofibrate treatment. Deplanque D, Gele P, Petrault O, et al. The Journal of Neuroscience . 2003