摘要
天然生长抑素(somatostatin,SST)是一种胃肠激素及神经肽,主要分布于神经和消化系统中,具有广泛的生物学效应.消化系SST大多由胰腺和胃肠黏膜中的D细胞分泌,能抑制胃肠运动及多种激素分泌.SST调节作用由G蛋白偶联受体,即生长抑素受体(somatostatin receptor,SSTR)介导.Oddi括约肌(sphincter of Oddi,SO)位于十二指肠乳头周围,是一结构和功能相对独立的器官,其运动主要受神经、激素、Cajal间质细胞的调节.SST对SO的作用尚存在争议,本文就生长抑素对SO功能的影响进行综述.
Native somatostatin is a gut hormone and neuropeptide, widely distributed in the nervous and gastrointestinal system, and has a broad range of biological actions. In gastrointestinal tract （GIT）, somatostatin is mainly produced by the delta cells of the pancreas and gastrointestinal mucosal. The inhibitory effects of somatostatin on gastrointestinal motility and hormone secretion are mediated by a family of G protein-coupled receptors： the somatostatin receptors （SSTR1-5）. The sphincter of Oddi （SO） located near the duodenum papillae is an anatomically and functionally distinct organ, SO motility is controlled and regulated by nerve, hormone and interstitial cells of Cajal. The effect of somatostatin on SO motility is still controversial. This article reviewed effect of somatostatin on human sphincter of oddi motility.
出处
《世界华人消化杂志》
CAS
北大核心
2009年第17期1749-1752,共4页
World Chinese Journal of Digestology
