PMID: 16624750Apr 21, 2006Paper

Effect of saikosaponins on glial fibrillary acidic protein expression in hippocampal astrocytes of pentetrazole-induced chronic kindling rats

Nan fang yi ke da xue xue bao = Journal of Southern Medical University
Wei XieYu-yao Chen

Abstract

To study the effect of saikosaponins, the active ingredients of Bupleurum chinense DC, on glial fibrillary acidic protein (GFAP) expression in hippocampal astrocytes of chronic kindling rats induced by pentetrazole (PTZ). Forty-eight healthy Sprague-Dawley rats were randomized into 6 equal groups, namely the blank control group (Group A), normal saline group (Group B), sodium valproate group (Group C), and 3 saikosaponins groups of high, medium and small doses (Groups D, E, and F, respectively). The rats (except those in Group A) received intraperitoneal injection of PTZ to induce chronic kindling 1 h after the respective agents as indicated were administered intragastrically on a daily basis for 4 consecutive weeks. Upon completion of the treatment course, the rats were sacrificed and the brain tissues were sampled, sliced and stained for immunohistochemical examination. The results were analyzed to calculate the positive cell count, cross-sectional area of the cells and the gray scale. In group B, the positive cell population and cross-sectional area of the positive cells were the greatest among the groups (P<0.01), but the positive cell gray scale of the CA1 and CA2 regions and the dentate gyrus (DG) of the hippocampus was t...Continue Reading

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