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.
引用
收藏
页码:69 / 74
页数:5
相关论文
共 128 条
[1]  
Agardh CD(1981)Hypoglycemic brain injury: Metabolic and structural findings in rat cerebellar cortex during profound insulin-induced hypoglycemia and in the recovery period following glucose administration J Cereb Blood Flow Metab 1 71-84
[2]  
Kalimo H(1998)Cellular and molecular correlates of the regeneration of adult mammalian CNS axons into peripheral nerve grafts Prog Brain Res 117 211-233
[3]  
Olsson Y(1984)The distribution of hypoglycemic brain damage Acta Neuropathologica (Berlin) 64 177-191
[4]  
Siesjo BK(1991)Synaptic reorganization by mossy fibers in human epileptic fascia dentata Neuroscience 42 351-363
[5]  
Anderson PN(1998)[U-13C] glutamate metabolism in astrocytes during hypoglycemia and hypoxia J Neurosci Res 51 636-645
[6]  
Campbell G(2000)Glutamic acid decarboxylase-expressing astrocytes exhibit enhanced energetic metabolism and increase PC12 cell survival under glucose deprivation J Neurochem 75 56-64
[7]  
Zhang Y(1997)Relationship between GAP-43 expression in the dentate gyrus and synaptic reorganization of hippocampal mossy fibers in rats treated with kainic acid Eur J Neurosci 9 93-101
[8]  
Lieberman AR(1997)GAP-43: An intrinsic determinant of neuronal development and plasticity Trends Neurosci 20 84-91
[9]  
Auer RN(1994)Preliminary evidence: Decreased GAP-43 message in tangle-bearing neurons relative to adjacent tangle-free neurons in Alzheimer's disease parahippocampal gyrus Neurobiol Aging 15 381-386
[10]  
Wieloch T(1992)Rapid and reversible astrocytic reaction to afferent activity blockade in chick cochlear nucleus J Neurosci 12 1001-1009