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胃泌素又称促胃液素,主要由分布在胃窦部和十二指肠上部的G细胞分泌。它的生理作用是能刺激胃酸分泌,促进胃的运动,增强食道下端括约机收缩,促进幽门括约肌舒张,促进胰液和胆汁分泌,增强小肠水的分泌,抑制水与电解质的吸收,促进胰岛素的释放,以及营养胃粘膜和胰腺腺泡。胃泌素在临床方面具有重要意义: 1、诊断应用: (1)用胃泌索进行胃液分析:胃液分析是临床上了解胃酸分泌功能的重要方法,特别对胃及十二指肠溃疡、萎缩性胃炎、卓—艾二氏综合征及胃手术后的胃酸分泌功能检查非常重要,常有助于其诊
Gastrin, also known as gastrin, is mainly secreted by G cells distributed in the antrum and duodenum. Its physiological role is to stimulate gastric acid secretion and promote gastric movement, enhance the lower esophageal contractile contraction, and promote pyloric sphincter relaxation, and promote pancreatic juice and bile secretion, enhance the secretion of small intestine water, inhibit the absorption of water and electrolytes, and promote insulin Release, and nutrition gastric mucosa and pancreatic acinar. Gastrin in the clinical aspects of great significance: 1, diagnostic applications: (1) gastric juice with gastric juice analysis: gastric juice analysis is an important method of clinical understanding of gastric acid secretion, especially for gastric and duodenal ulcers, atrophy Gastritis, Zhuo - Ai Ehrlich syndrome and gastric acid secretion function test is very important, often help their diagnosis