摘要
目的 :观察第三脑室注射组胺对下丘脑室旁核促皮质素释放激素 (CRH)神经元活动的影响。方法 :Fos癌蛋白免疫组化LSAB法结合双抗原标记法 ;半定量逆转录聚合酶链反应 (RT -PCR)方法。结果 :第三脑室注射组胺后 ,(1)下丘脑室旁核Fos阳性神经元数目明显增加 (P <0 .0 5 ) ;(2 )室旁核内的Fos阳性神经元中约有 31 78%同时呈CRH阳性反应 ;(3)室旁核CRHmRNA含量明显升高 ,且有量效关系。结论 :中枢组胺可以激活下丘脑室旁核的CRH神经元 ,并使CRH基因表达增加。
AIM:To study the effect of intraventricular injection(icv) of histamine(HA) on corticotropin releasing hormone (CRH) neurons activity in paraventricular nucleus (PVN) of hypothalamus. METHOD: Fos ontogenic protein immunohistochemistry and double antigen immunohistochemistry method; semiquantitative reverse transcription-polymerase chain reaction(RT-PCR) method were used. RESULTS: After intraventricular injection of HA, (1) number of Fos immunnoreactive positive neurons in PVN increased significantly; (2) double labeling experiments showed that there were 31 78%±1 59% of Fos immunoreactive cells in PVN expressed CRH simultaneously; (3) the CRHmRNA level in PVN was increased in a dose-dependent manner. CONCLUSION: Central histamine activated CRH neurons in PVN of hypothalamus and increase the expression of CRH gene.
出处
《中国病理生理杂志》
CAS
CSCD
北大核心
2000年第6期512-515,共4页
Chinese Journal of Pathophysiology
关键词
组胺
下丘脑室旁核
促肾上腺皮质素释放激素
Histamine
Paraventricular hypothalamic nucleus
Corticotropin-releasing hormone
