Expression of neuronal plasticity markers in hypoglycemia induced brain injury

被引:10
作者
Pawan Singh
Pawan Kumar Heera
Gurcharan Kaur
机构
[1] Guru Nank Dev University,Neurochemistry and Neuroendocrinology Laboratory, Department of Biotechnology
来源
Molecular and Cellular Biochemistry | 2003年 / 247卷
关键词
growth-associated protein-43; glial fibrilliary acidic protein; neural cell adhesion molecule; hypoglycemia; insulin;
D O I
暂无
中图分类号
学科分类号
摘要
The expression of neuroplasticity markers was analyzed in four brain regions, namely cerebral hemispheres (CH), cerebellum (CB), brain stem (BS) and diencephalon (DC) from insulin-induced hypoglycemic young adult rats. Significant decrease in neural cell adhesion molecule (NCAM) isoforms and growth-associated protein-43 (GAP-43) was observed following hypoglycemic injury from majority of brain regions studied. The glial fibrillary acidic protein (GFAP) level increased significantly in cerebral hemispheres and diencephalon regions, whereas, synaptophysin level increased in cerebellum, brain stem and diencephalon regions. The selective downregulation of the neuronal plasticity marker proteins (GAP-43 and NCAM), and enhanced expression of GFAP and synaptophysin suggests that in acute hypoglycemia, mechanisms other than energy failure may also contribute to neuronal cell damage in the brain.
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页码:69 / 74
页数:5
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共 128 条
[21]  
Aasly J(2000)Oligodendrocytes and microglia are selectively vulnerable to combined hypoxia and hypoglycemia injury Brain Research 857 172-182
[22]  
Sonnewald U(2001)Vulnerability to glucose deprivation injury correlates with glutathione levels in astrocytes Acta Neuropathol (Berl) 102 413-421
[23]  
Bellier JP(1992)Free radicals are involved in the damage to protein synthesis after anoxia/aglycemia and NMDA exposure Acta Pathol Jpn 42 316-324
[24]  
Sacchettoni S(1992)Hypoglycemic neuropathy Neurosci Res 15 221-223
[25]  
Prodhon C(1986)Pathological effects of maternal hypoglycemia on fetal development in cats Cell Biol Pathol 3 263-264
[26]  
Perret-Liaudet A(1999)Gradient expression of neural cell adhesion molecule (NCAM) in the pontine migratory stream of fetal cells Brain Res 828 127-134
[27]  
Belin MF(2001)Gliosis following injury: The anatomy of astrocyte scar and their influences on axonal elongation in astrocytes Neuroscience 102 329-339
[28]  
Jacquemont B(2000)Opposite effects on NCAM expression in the rat frontal cortex induced by acute vs. chronic corticosterone treatments J Comp Pathol 122 67-71
[29]  
Bendotti C(1989)Effects of chronic stress on contextual fear conditioning and the hippocampal expression of the neural cell adhesion molecule, its polysialylation and L1 Annu Rev Neurosci 12 127-156
[30]  
Baldessari S(1998)Hypoglycemic brain lesions in a dog with insulinoma J Neurosci 18 2321-2334