EXCITOTOXICITY AND NEUROLOGICAL DISORDERS - INVOLVEMENT OF MEMBRANE PHOSPHOLIPIDS

被引:62
作者
FAROOQUI, AA
HORROCKS, LA
机构
[1] Department of Medical Biochemistry, The Ohio State University, Columbus
来源
INTERNATIONAL REVIEW OF NEUROBIOLOGY, VOL 36 | 1994年 / 36卷
关键词
D O I
10.1016/S0074-7742(08)60306-2
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Excitatory amino acids and their receptors play an important role in membrane phospholipid metabolism. Persistent stimulation of excitatory amino acid receptors by glutamate may be involved in neurodegenerative diseases and brain and spinal cord trauma. The molecularmechanism of neurodegeneration induced by excitatory amino acids is, however, not known. Excitotoxin-induced calcium entry causes the stimulation of phospholipases and lipases. These enzymes act on neural membrane phospholipids and their stimulation results in accumulation offree fatty acids, diacylglycerols, eicosanoids, and lipid peroxides in neurodegenerative diseases and brain and spinal cord trauma. Other enzymes, such as protein kinase C and calcium-dependent proteases, may also contribute to the neuronal injury. Excitotoxin-induced alterations in membrane phospholipid metabolism in neurodegenerative diseases and neural trauma canbe studied in animal and cell culture models. These models can be used to study the molecular mechanisms of the neurodegenerative processes and to screen the efficacy of therapeuticdrugs. © 1994 Academic Press Inc.
引用
收藏
页码:267 / 323
页数:57
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