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弥漫性脑损伤大鼠的神经功能改变及Homer1a蛋白表达

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摘要 目的探讨弥漫性脑损伤(DBI)大鼠的神经功能及其皮层组织Homer1a蛋白表达改变及意义。方法选择成年雄性SD大鼠45只,随机分为正常对照组5只、假手术组5只、DBI组35只。DBI组采用Marmarou等方法建立DBI模型,分别于伤后30 min,3、6、12、24、48、72 h断头取脑;假手术组仅切开头皮开天窗,不致伤;正常对照组不做任何处理。对三组大鼠进行后肢抓持反射试验、触须诱发前肢定位试验、侧向垫步试验,评价其神经功能;采用HE染色观察各组皮层神经元细胞形态变化,免疫组化法观察Homer1a蛋白表达情况。结果与正常对照组、假手术组比较,DBI组大鼠神经功能评分降低,但其伤后3、24 h评分出现高峰(P均<0.05)。DBI组皮层神经元细胞出现变性、坏死和凋亡改变;DBI伤后30 min,Homer1a蛋白开始表达,持续至伤后72 h,以伤后3、24 h最多(P均<0.01)。结论大鼠DBI后神经功能评分降低,损伤前后皮层Homer1a蛋白表达有显著变化,提示Homer1a蛋白参与神经元的损伤过程。
出处 《山东医药》 CAS 2012年第45期26-28,共3页 Shandong Medical Journal
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参考文献7

  • 1Marmarrou A, Fnda MA, Vav DB, et al. A new model of diffuse brain injury in rats. Part I: pathophysiology and biomechanics[ J ]. Neurosurgery, 1994,80(2) :291-300.
  • 2Rancan M, Otto VI, Hans VH, et al. Upregulation of ICAM-1 and MIP-1 but notof MIP-2 and sensorlmotor deficit in response to traumatic axonal injury in rats[ J ]. J Neurosic Res, 2001,63 (5) :438- 446.
  • 3Xiao B, Tu JC, Worley PF, et al. Homer: a link between neural activity and glutamate receptor function [J]. Current Opinion Neruobiology, 2000,10 ( 3 ) : 370-374.
  • 4Shiraishi Y, Mizutani A, Yuasa S, et al. Glutamate-induced declustering of post-synaptic adaptor protein cupidin (Homer2/vesl-2) in cultured cerebellar granule ceils [ J ]. J Neurochem, 2003,87 (2) :364-376.
  • 5张磊,刘文博,费舟,陈涛,李栋,王远,潘伟生.Homer与缺血性脑损伤中谷氨酸、γ-氨基丁酸相关性研究[J].中华神经外科疾病研究杂志,2009,8(3):248-251. 被引量:4
  • 6史铁钧,费舟,章翔,黄卫东,王西玲,王映梅.弥漫性脑损伤大鼠Homer 1蛋白的表达规律[J].中国临床康复,2005,9(17):88-89. 被引量:2
  • 7张磊.Homer和Shank基因表达改变在脑损伤和脑胶质瘤病理过程中的意义[D].2009.

二级参考文献18

  • 1Graham DI,Mclntosh TK,Maxwell WL,et al.Recent advaces in neurotrauma[J].J Neuropathol Exp Neurol,2002,59(8):641 -651.
  • 2Naisbitt S,Kim E,Tu JC,et al.Shank,a novel family of postsynaptic density proteins that binds to the NMDA receptor/PSD-95/GKAP complex and cortactin[J].Neuron,1999,23(3):569 -582.
  • 3Marquer FJ,Quesa AR,Sanehez F,et al.Determination of 27 dansyl amino acid derivatives in biological fluids by reversed-phase highperformance liquid chromatography[J].J Chromatogr,1986,380(2):275-283.
  • 4Huang WD,Fei Z,Zhang X,et al.Traumatic injury induced homer-1 a gene expression in cultured cortical neurons of rat[J].Neurosci Lett,2005,389 (1):46 -50.
  • 5Hilton GD,Nunez JL,Bambrick L,et al.Glutamate-mediated excitotoxicity in neonatal hippocampal neurons is mediated by mGluRinduced release of Ca^2+ from intracellular stores and is prevented by estradiol[J].EurJ Neurosci,2006,24(11):3008-3016.
  • 6Rosas-Arellano A,Ochoa-de la Pax LD,Miledi R,et al.Brain distribution and molecular cloning of the bovine GABA rhol receptor[J].Nanresci Res,2007,57(3):347 -353.
  • 7Tyzio R,Cossart R,Khalilov I,et al.Maternal oxytoein triggers a transient inhibitory switch in GABA signaling in the fetal brain during delivery[J].Science,2006,314(5806):1788-1792.
  • 8Faden AI,OLeary DM,Fan L,et al.Selective blockade of the mGluR1 receptor reduces traumatic neuronal injury in vitro and improves outcome after trauma[J].Exp Neurol,2001,167(2):435 -444.
  • 9Brakeman PR, Lanahan AA, O' Brien R, et al. Homer: a protein that selectively bindsmetabotropic glutamate receptors. Nature 1997; 386 (6622): 284 - 8
  • 10Ango F, Prezeau L, Muller T, et al. Agonist-independent activation of metabotropic glutamate receptors by the intracellular protein Homer. Nature 2001; 411 (6840):962 -5

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