Does CDP-choline modulate phospholipase activities after transient forebrain ischemia?

被引:40
作者
Rao, AM
Hatcher, JF
Dempsey, RJ
机构
[1] Univ Wisconsin, Dept Neurol Surg, Ctr Clin Sci, Madison, WI 53792 USA
[2] Univ Wisconsin, Cardiovasc Res Ctr, Madison, WI 53792 USA
[3] Vet Adm Hosp, Madison, WI USA
关键词
arachidonic acid; apoptosis; cardiolipin; citicoline; lysophospholipids; mitochondria; neuronal death; phosphatidylcholine; phosphatidylinositol; phospholipase A(2);
D O I
10.1016/S0006-8993(00)03280-7
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Ten min forebrain ischemia/1-day reperfusion resulted in significant decreases in total phosphatidylcholine (PtdCho), phosphatidylinositol (PtdIns), and cardiolipin in gerbil hippocampus. CDP-choline restored cardiolipin levels, arachidonic acid content of PtdCho, partially but significantly restored total PtdCho, and had no effect on PtdIns. These data suggest that CDP-choline prevented the activation of phospholipase A(2) (rather than inhibiting phospholipase A(2) activity) but did not affect activities: of PtdCho-phospholipases C and/or D, or phosphoinositide-phospholipase C. CDP-choline also provided significant protection for hippocampal CA(1) neurons. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:268 / 272
页数:5
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