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  • Title: [Effect of gastrointestinal hormones on duodenal motility in acute experiments].
    Author: Petzold A, Ottinger A, Hammer J, Walter J.
    Journal: Gastroenterol J; 1991; 51(2):81-92. PubMed ID: 1684502.
    Abstract:
    In this study was observed the influence of Pancreozymin, Secretin, Glucagon, Pentagastrin and Somatostatin on the motility of duodenum in 256 seances in acute experiments on 12 dogs before and after truncal vagotomy and on 20 Wistar rats. As a control we used the return of the parameters of electrical and motor activity to their original levels. The reaction was registered with the help of electromyography, using bipolar electrodes and with measurement of intraluminal pressure, using open-tip catheter technique. Spike-activity was graphically presented and statistically performed. It was shown, that Secretin and Glucagon caused relaxation of duodenum, but Pentagastrin, Pancreozymin and Somatostatin stimulated duodenal motility with spastic component and gradual phasic character of a process. After truncular vagotomy the reaction to Pancreozymin and Pentagastrin was slowly, to Glucagon strongly reduced, but the reaction to Secretin was extended. We observed after TV either no reaction or a diminished reaction to Somatostatin. This study serves as experimental basis for use of gastrointestinal hormones and electromyography for diagnosis and therapy of motility disorders of duodenum in surgical practice.
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