Bee venom-induced changes in expression of NMDA receptor subunits in spinal cord, S1 area and hippoc

来源 :中国神经科学学会第四次会员代表大会暨第七届全国学术会议(The 7th Biennial Meeting and the | 被引量 : 0次 | 上传用户:ppmm112233
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Using tissue immunohistochemistry technique,the present study investigated the effects of subcutaneous (s.c.) bee venom (BV) administration on the expression of three major NMDA receptor subunits (NR1,NR2A,NR2B) in rat lumbar spinal cord,S 1 area and hippocampus.Subsequent to s.c.BV injection (100 ug/50 ul) into the hind paw,the animal exhibited a typical behavioral expression of persistent pain and hyperalgesia,whereas s.c.injection of equal volume of normal saline produced little effect.The coronal sections of lumbar spinal cord and brain were sequentially prepared at 4 h after BV or saline administration.Immunostaining was then performed and positive labeling was visualized by treatment with diaminobenzidine (DAB) and hydrogen peroxide.Quantifications of NMDA receptor subunits expression were finished by comparisons between two sides of the hindpaw or comparisons between BV-treated and saline-treated groups.
其他文献
会议
会议
会议
For exploring the phenotypic characteristics of ATP-activated currents in the neurons of rat nodose ganglion associated with genotypic assemply of P2X purinoceptors,experiments were performed using wh
蝎神经毒素BmKⅠ是电压敏感钠通道的特异性调制剂,已经由全细胞膜片钳实验证明能够易化钠通道的激活,延长钠电流失活化相,增加钠电流峰值。本工作采用单纤维记录技术,在坐骨神经上记录了足底皮下注射5ugBmKⅠ引起的低阈值机械敏感A纤维的自发放电。自发放电的性质和感受器及动作电位形成带的性质相关。放电有多个周期,每个周期放电可归纳为由频率峰值和峰值之后短暂的静息期分割的两相。动作电位成串发放,串内放电的
Injection of complete Freunds adjuvant (CFA) to the hind paw of the rat is a widely used animal model of chronic inflammatory pain,after CFA administration,animal will display a hypersensitivity to th
An essential step in understanding visual processing is to characterize the neuronal receptive fields (RFs) at each stage of the visual pathway,but RF characterization beyond V 1 simple cells remains
哺乳动物存在脑的性分化,但皮层下重要的运动调节中枢黑质是否也存在性分化目前不清楚.黑质病变造成的帕金森病(PD)的发病率和病重程度等男性高于女性,而PD的病因学至今不清楚,到目前为止药物仍不能根治PD,因而十分有必要探究正常中脑黑质是否存在性分化,为深入研究PD的病因和诊疗策略提供必要的生理基础.为此,本研究在5组实验大鼠上进行:(1)正常雌鼠假手术对照组;(2)正常雄鼠假手术对照组;(3)去卵巢
Parkinsons disease (PD) is a common motor disorder in human.Degeneration of dopaminergic neurons in the substantia nigra is the cause of PD.After dopamine denervation,an over-activity of glutamatergic
Persistent inward Ca2+ and Na+ currents (PICs) may cause plateau potentials and they are part of the intrinsic properties of spinal motoneurons.Studies in cats and rats have shown that after acute spi