Aeberhard P
Z Gastroenterol. 1977 Mar;15(3):202-8.
Complexes of high amplitude action potentials have been shownn to occur in the stomach and duodenum of fasting dogs. These complexes recur at regular intervals as long as the animal is fasting, and they are propagated aborally over the whole lenght of the small bowel. The cyclical pattern is replaced by the digestive of "fed" pattern of activity upon feeding. Therefore the pattern has been known as the interdigestive myoelectrical complex. Studies in herbivorous species however, in which the flow of digesta is more or less continous have show that cyclically recurring migrating complexes can be demonstrated in these species as well. Thus, the term "migratory myoelectrical complex" may be more appropriate. Propagation of the complex is not dependent upon continuity of the bowel wall nor movement of luminal contents. Replacement of the complex by the digestive pattern of activity upon feeding and the restitution of the interdigestive pattern at the end of the digestive phase seem to be under nervous as well as hormonal control. The interdigestive complex in the dog has been looked upon as a "housekeeper" which sweeps the bowel clear of contents at the end of the digestive phase. Aspects of possible physiological significance of the complex are: periodic elimination of refluxed duodenal contents from the stomach and prevention of bacterial colonization of the small bowel by the colonic flora. The existence of propagated complexes has not been demonstrated in man, but there is increasing evidence for cyclical activity which fits the pattern.
高振幅动作电位复合体已被证明出现在禁食犬的胃和十二指肠中。只要动物处于禁食状态，这些复合体就会有规律地重复出现，并沿小肠全长向口外传播。进食时，这种周期性模式会被消化期的“进食”活动模式所取代。因此，这种模式被称为消化间期肌电复合体。然而，对草食性动物的研究表明，在这些动物中也能证明周期性出现的移行性复合体，因为它们的食糜流动或多或少是连续的。因此，“移行性肌电复合体”这一术语可能更合适。复合体的传播并不依赖于肠壁的连续性或肠腔内内容物的移动。进食时复合体被消化期活动模式所取代，以及消化期结束时消化间期模式的恢复似乎受神经和激素的控制。犬的消化间期复合体被视为一位“管家”，在消化期结束时将肠内容物清扫干净。该复合体可能具有的生理意义包括：周期性清除胃内反流的十二指肠内容物，以及防止结肠菌群在小肠内定植。虽然在人类中尚未证实有传播性复合体的存在，但越来越多的证据表明存在符合这种模式的周期性活动。
