Gastric influences on canine small intestinal myoelectric activity.
Gastric influences on canine small intestinal myoelectric activity.
复制标题
胃对犬小肠肌电活动的影响。
DOI：
10.1007/bf01318430
复制
发表时间：
1984
影响因子：
3.1
通讯作者：
Kelly,KA
中科院分区：
文献类型：
--
作者：
Heppell,J;Taylor,BM;Kelly,KA
目的是确定是否犬胃调节消化间期和消化小肠肌电活动。在四个清醒的狗与电极长期植入十二指肠和空肠，肠道肌电活动记录在禁食期间和喂食后的200克肝餐。然后对犬进行全胃切除术和食管十二指肠吻合术，之后对其进行再研究。胃切除术并没有改变模式的肠道消化间期肌电复合物的发生，期间，持续时间的第三阶段，和一致性的远端传播的肠道IMC保持不变。胃切除术还保留了肠道IMC的食后抑制和小肠中进食肌电模式的食后诱导。然而，胃切除术后进食模式的发作比胃切除术前更快。我们的结论是犬十二指肠和空肠消化间期肌电活动的模式在很大程度上是独立的胃。胃切除术后进食时进食模式的更快发生可能与食糜更快进入小肠有关。
The aim was to determine whether the canine stomach modulates interdigestive and digestive small intestinal myoelectric activity. In four conscious dogs with electrodes implanted chronically on the duodenum and jejunum, enteric myoelectric activity was recorded during fasting and after feeding a 200-g liver meal. The dogs then underwent total gastrectomy and esophagoduodenostomy, after which they were restudied. Gastrectomy did not alter the pattern of the enteric interdigestive myoelectric complexes; the occurrence, period, duration of phase III, and consistency of distal propagation of enteric IMCs remained unchanged. Gastrectomy also preserved both the postcibal inhibition of the enteric IMCs and the postcibal induction of the fed myoelectric pattern in the small bowel. However, the onset on the fed pattern occurred more promptly after gastrectomy than before gastrectomy. We concluded that the pattern of canine duodenal and jejunal interdigestive myoelectric activity was largely independent of the stomach. The more rapid onset of the fed pattern with feeding postgastrectomy may relate to more rapid entry of chyme into the small intestine.