绵羊胆囊迁移性肌电复合体的发生、特点及其与小肠运动的关系

K. Romański
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引用次数: 2

摘要

本文试图确定绵羊胆囊中的迁移运动复合体,并将其与小肠模式相结合。为此,4只公羊接受了双极电极植入手术,电极植入了整个小肠和胆囊的漏斗、体和底。应变式力传感器也安装在胆囊底部,靠近电极。在慢性实验过程中,记录了禁食和非禁食公羊在进食和不进食时的肌电和运动活动。胆囊出现周期性肌电和运动活动模式。它类似于小肠中存在的迁移肌电复合体。胆囊形态与肠道迁移复合体密切相关。这种模式的三到四个阶段可以在胆囊的所有区域被识别出来。与胆囊上部区域相比,胆囊底部最具特征的3期样活动时间更长,强度更大。在小肠和胆囊中,不同喂养条件引起的运动改变具有可比性。因此,迁移运动复合体发生在绵羊胆囊中,尽管其假定的作用可能与小肠中的作用不同,至少部分不同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Occurrence and characteristics of the migrating myoelectric complex in ovine gallbladder and its relationships to the small intestinal motility
An attempt has been made to identify the migrating motility complex in the ovine gallbladder and to span it with the small-intestinal pattern. For this purpose, four rams underwent surgical implantation of bipolar electrodes into the abomasal antrum, entire small bowel and gallbladder infundibulum, corpus and fundus. The strain gauge force transducer was also mounted in the gallbladder fundus, near the electrode. In the course of chronic experiments, the myoelectrical and motor activity was recorded in fasted and non-fasted rams, with or without feeding. Cyclic myoelectrical and motor activity pattern was found in the gallbladder. It resembled the migrating myoelectric complex present in the small bowel. The gallbladder pattern was well correlated with the intestinal migrating complex. Three or four phases of this pattern could be identified in all gallbladder regions. The most characteristic phase 3-like activity was longer and more intense in the gallbladder fundus as compared with the upper gallbladder regions. In both the small bowel and gallbladder, motility alterations caused by various feeding conditions were comparable. Therefore, the migrating motility complex occurs in the ovine gallbladder, albeit its putative role can be different from that in the small bowel, at least in part.
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