胃动素是一种含22个氨基酸分子的多肽,可自猪十二指肠粘膜提取出来。它对胃、十二指肠及结肠的平滑肌有强力刺激作用。现在不但在十二指肠和空肠的内分泌细胞中对它进行定位,且已建立了它的特异放射免疫测定方法,用以研究在各种刺激后血浆中胃动素的动态变化。现在猪的天然胃动素已可提纯,还可人工合成,因此已有可能研究它的生理作用。本文的目的乃研究小剂量胃动素对胃排空葡萄糖 Motilin is a 22 amino acid peptide that can be extracted from porcine duodenal mucosa. It has a strong stimulating effect on the smooth muscle of stomach, duodenum and colon. It is now not only located in the endocrine cells of the duodenum and jejunum, but its specific radioimmunoassay has been established to study the dynamic changes of motilin in plasma following various stimuli. Now that porcine natural motilin has been purified and synthesized, it has been possible to study its physiological role. The purpose of this article is to study the effect of low-dose motilin on gastric emptying of glucose