王冬梅戴飞红洪炎国周小龙阮丽钦.慢性激活MrgC 受体上调CGRP表达的nNOS机制*[J].现代生物医学进展英文版,2014,14(2):214-216. |
慢性激活MrgC 受体上调CGRP表达的nNOS机制* |
The Mechanismof Up-Regulation of CGRP on MrgC in Cultured DorsalRoot Ganglia of Rats* |
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DOI: |
中文关键词: MrgC 受体(SNSR) 背根神经节 降钙素基因相关肽 一氧化氮合酶 |
英文关键词: MrgC receptor (Sensory neuron-specific receptors) Dorsal root ganglin Calcitonin gene-related peptide Nitric oxide
synthase |
基金项目:国家自然科学基金项目(30970985) |
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中文摘要: |
摘要目的:检查持续应用BAM8-22 对体外组织培养感觉神经节合成钙调素基因相关肽(CGRP)的影响。方法:将体外培养的大鼠
三叉神经节和背根神经节经BAM8-22 和L-NAME 处理后,用酶联免疫法测定CGRP 的表达含量变化。结果:与对照组相比,连
续4 天给予SNSR 的选择性激动剂BAM8-22,CGRP 的合成会增加。联合给予BAM8-22 和NOS 的非选择性抑制剂L-NAME,
CGRP的表达随不同剂量的L-NAME 引起不同程度的上调。结论:持续激活SNSR 能使感觉神经节合成CGRP增多,是在体动物
慢性激活SNSR 后吗啡镇痛作用降低的细胞学机制。 |
英文摘要: |
ABSTRACT Objective:To investigate the effect of chronic BAM8-22 treatment on the expression of calmodulin gene related with
peptide ( CGRP ) in cultured sensory ganglion. Methods:DRG and TG tissue of rats were cultured in vitro after BAM8-22 and L-NAME
treatment. The changes of CGRP content was detected by enzyme linked immunosorbent assay. Results:Compared with the control
group, the expression of CGRP increased after the consecutive treatment of selective SNSR agonist (BAM8-22) for 4 days. Combined
that treated with L-NAME (a non-selective nitricoxide synthesis inhibitor), the expression of CGRP was up-regulated differently with
different doses of L-NAME. Conclution:Chronic activation of SNSR resulted in the enhanced expression of CGRP, it may be the cellular
mechanismfor reducing the analgesic effect of morphine after continuous activation of SNSR. |
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