Effects of 5-hydroxytryptamine Receptor on the Reaction of the Lower Esophageal Sphincter Under the Electrical Field Stimulation

In the first and second parts of this study,5-hydroxytryptamine(5HT)receptors,including 5-HT3 and 5-HT4 with the highest expression level,were found in clasp and sling fibres of the lower esophageal sphincter(LES).Specific 5-HT3 and 5-HT4 receptor agonists can induce the contraction effect of clasp and sling fibres of the LES while specific 5-HT7 receptor agonists showed no effects.In the study of this part,the in-vitro muscle tension measurement technology and EFS methods were used to detect the effect of the selective 5-HT receptor antagonist on the clasp and sling fibres of the in-vitro LES under the electrical field stimulation(EFS),and further to ensure the effect of 5-HT receptor in the LES neuroregulatory pathway,and deeply explore the effect of 5-HT receptor in the systolic and diastolic function regulation of the LES.

LINX抗反流系统治疗胃食管反流病的研究进展

胃食管反流病(gastroesophageal reflux disease,GERD)是由食管下段括约肌(loweResophageal sphincter,LES)功能不全导致胃、十二指肠内容物反流入食管、口腔或气管引起不适症状和(或)并发症的一种疾病。其主要症状为烧心和反流。目前GERD的主要治疗方法包括药物、内镜及外科手术。但需长期服用质子泵抑制剂,且术后并发症多或疗效不确切。LINX抗反流系统是近年来兴起的一种新型治疗技术,在疗效上具有其独特的优势。该文就LINX抗反流系统治疗GERD的研究进展作一综述。