A light and electron microscopic study of cytoplasmic phospholipase A2 and cyclooxygenase-2 in the hippocampus after kainate lesions

被引:103
作者
Sandhya, TL
Ong, WY [1 ]
Horrocks, LA
Farooqui, AA
机构
[1] Natl Univ Singapore, Dept Anat, Singapore 119260, Singapore
[2] Ohio State Univ, Dept Med Biochem, Columbus, OH 43210 USA
关键词
excitotoxicity; phospholipase A(2); cyclooxygenase-2; arachidonic acid; reactive astrocyte; glial scar; hippocampus;
D O I
10.1016/S0006-8993(97)01552-7
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The systemic administration of kainate (10 mg/ml) into adult Wistar rats produces seizures and neurodegeneration. We have studied the effect of kainate administration on cPLA(2) and COX-2 immunoreactivities after 3 days and 1, 2, 4 and 11 weeks. The cPLA(2) immunoreactivity was increased in hippocampal neurons at 1 and 3 days after kainate injection suggesting that PLA, may be involved in neurodegeneration. Increased cPLA(2) and COX-2 immunoreactivities in astrocytes at 1, 2, 4 and 11 weeks after kainate injection indicate an adaptive astrocytic response that may be associated with gliosis. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:223 / 231
页数:9
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