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AIM: To study the effect of the opioid-receptor like-1(ORL1) agonist nociceptin on gastrointestinal(GI)myenteric neurotransmission and motility. METHODS: Reverse transcriptase- polymerase chain reaction and immunohistochemistry were used to localize nociceptin and ORL1 in mouse tissues. Intracellular electrophysiological recordings of excitatory and inhibitory junction potentials(EJP, IJP) were made in a chambered organ bath. Intestinal motility was measured in vivo. RESULTS: Nociceptin accelerated whole and upper GI transit, but slowed colonic expulsion in vivo in an ORL1-dependent manner, as shown using [Nphe1]NOC and AS ODN pretreatment. ORL1 and nociceptin immunoreactivity were found on enteric neurons. Nociceptin reduced the EJP and the nitric oxide-sensitive slow IJP in an ORL1-dependent manner, whereas the fast IJP was unchanged. Nociceptin further reduced the spatial spreading of the EJP up to 2 cm. CONCLUSION: Compounds acting at ORL1 are good candidates for the future treatment of disorders associated with increased colonic transit, such as diarrhea or diarrhea-predominant irritable bowel syndrome.
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篇名 Nociceptin effect on intestinal motility depends on opioidreceptor like-1 receptors and nitric oxide synthase colocalization
来源期刊 世界胃肠药理与治疗学杂志:英文版(电子版) 学科 医学
关键词 NOCICEPTIN Gastrointestinal TRANSIT Opioidreceptor like-1 ELECTROPHYSIOLOGY Expression
年,卷(期) 2015,(3) 所属期刊栏目
研究方向 页码范围 73-83
页数 11页 分类号 R57
字数 语种
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研究主题发展历程
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NOCICEPTIN
Gastrointestinal
TRANSIT
Opioidreceptor
like-1
ELECTROPHYSIOLOGY
Expression
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研究来源
研究分支
研究去脉
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相关学者/机构
期刊影响力
世界胃肠药理与治疗学杂志:英文版(电子版)
双月刊
2150-5349
北京市朝阳区东四环中路62号楼远洋国际中
出版文献量(篇)
323
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0
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0
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