畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (7): 1175-1181.doi: 10.11843/j.issn.0366-6964.2014.07.021

• 基础兽医 • 上一篇    下一篇

促黄体生成素受体在雌性山羊背根神经节中的表达分析

董伟,黄双,徐永平*,田媛媛,刘文刚   

  1. (西北农林科技大学动物医学院,杨凌 712100)
  • 收稿日期:2013-11-13 出版日期:2014-07-23 发布日期:2014-07-23
  • 通讯作者: 徐永平(1971),男,陕西长安人,教授,硕士生导师,主要从事基础兽医学和发育生物学研究,E-mail:xuyp717@nwsuaf.edu.com
  • 作者简介:董伟(1988-),女,山西临汾人,硕士,主要从事基础兽医学研究,E-mail:880501dongwei@163.com
  • 基金资助:

    国家自然科学基金项目(31072184); 陕西省农业推广项目(k332021309)

Expression of Luteinizing Hormone Receptor in Cervical,Thoracic and Lumbar Dorsal Root Ganglion of Female Goat

DONG Wei,HUANG Shuang,XU Yong-ping*,TIAN Yuan-yuan,LIU Wen-gang   

  1. (College of Veterinary Medicine,Northwest A﹠F University,Yangling 712100,China)
  • Received:2013-11-13 Online:2014-07-23 Published:2014-07-23

摘要:

采用免疫组织化学SP法检测雌性山羊颈-4、胸-6、腰-2节段背根神经节(DRG)中促黄体生成素受体(LHR)的表达水平及分布特征,研究DRG中是否有促黄体生成素(LH)作用的靶细胞以及LHR在DRG中的分布特点。结果显示:在颈-4、胸-6 DRG中,LHR免疫反应阳性物质主要分布在中小型神经元胞体中,LHR为强阳性或中等阳性;而大型神经元胞体不着色,LHR为阴性反应。在腰-2 DRG中,LHR免疫反应阳性物质在中小型神经元胞体中的分布特征与在颈-4、胸-6 DRG中的分布特征相似;但LHR在大型神经元胞体上为弱阳性反应。图像分析结果显示:颈-4、胸-6、腰-2 DRG内神经元胞体上LHR的相对表达量极显著高于节内其它阳性结构(P<0.01)。另外,在颈-4、胸-6、腰-2 DRG三节段之间,节内阳性神经元胞体上LHR的相对表达量也存在显著性差异(P<0.01或0.05)。研究表明,雌性山羊DRG中存在LHR,且中小型神经元胞体是LH发挥作用的主要靶细胞,揭示LH可能会通过作用于躯体-内脏感觉DRG内中小型神经元胞体上的LHR来参与调节动物机体各器官的温度觉、痛觉和触觉的传递以及与伤害性刺激等有关的感觉神经活动。

Abstract:

The objective of this study was to explore whether dorsal root ganglion (DRG) have the target cells effected to luteinizing hormone (LH),and observe the distribution of luteinizing hormone receptor(LHR) in dorsal root ganglion.Immunohistochemical SP method was adopted to detect the distribution of LHR in cervical-4,thoracic-6 and lumbar-2 DRG of female goats.Results were as follows:In cervical-4,thoracic-6 DRG,small and medium-sized neurons were strong or medium positive to LHR,while the large neurons had no staining.The distribution characteristics of LHR in small and medium-sized neurons of lumbar-2 DRG as well as to in cervical-4 and thoracic-6 DRG,but the large neurons were weak positive to LHR in lumbar DRG.Image analysis showed a significant difference of LHR expression between neurons and non-neurons in cervical-4,thoracic-6 and lumbar-2 DRG (P<0.01).In addition,the expression of LHR among the cervical-4,thoracic-6 and lumbar-2 DRG also have significant difference (P<0.01/0.05).The results indicate that small,medium-sized neurons in DRG were the main target cells of LH,which implies that LH may regulate the transmision of the sense to temperature,pain,touch and the sensory nerve activity associated with harmful stimulation,through the LHR distributed on small,medium-sized neurons in body-visceral sensory DRG.

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