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Wednesday, July 29, 2020 | History

2 edition of Studies on the motility of the denervated Heidenhain pouch. found in the catalog.

Studies on the motility of the denervated Heidenhain pouch.

Zacharias Bercowitz

Studies on the motility of the denervated Heidenhain pouch.

by Zacharias Bercowitz

  • 397 Want to read
  • 2 Currently reading

Published in Chicago .
Written in English

    Subjects:
  • Heidenhain pouch.,
  • Gastrointestinal system -- Motility.,
  • Dogs.

  • Classifications
    LC ClassificationsQP151 .B48
    The Physical Object
    Pagination16 l.
    Number of Pages16
    ID Numbers
    Open LibraryOL5671307M
    LC Control Number68130845

    Studies carried out on 5 dogs prepared with Heidenhain pouches and gastric cannulas have revealed that: 1. Oral administration of a commercial antacid (Maalox) consistently increased pouch secretion of hydrochloric acid over that induced by food alone, even when large doses of anticholinergic medication (propanthe-line bromide or glycopyrrolate Cited by: 8. This volume reviews the most recent knowledge in the field of gastrointestinal motility in health and disease. The topics addressed include basic as well as clinical data concerning the motor functions of the entire gut: the lower oesophageal sphincter and the gastro-oesophageal reflux; the gastric emptying and the role of the pylorus; the motility of the biliary tract and its disorders; the.

    PYY that affect gastric secretion and motility under physiological conditions in the vagally innervated (Pavlov) and denervated (Heidenhain) gastric corpus pouches in conscious dogs. Materials and Methods Six adult mongrel dogs of either sex were used in the present study. Vagally innervated and denervated . A normal control contractile pattern of the inter digestive migrating contractions in the Heidenhain pouch, gastric body, and gastric antrum in a conscious dog. Intervals of quiescence indicated by arrows were measured to determine the quiescent period in the interdigestive migrating contractions in the stomach.

    Acid applied to the antrum mucosa in dogs inhibits the gastric phase of gastric secretion as exhibited in the vagus denervated Heidenhain pouch. To determine if this inhibition of secretion is due to failure of formation or release of gastrin from the antrum, or to the liberation of an inhibitory hormone from the gastric antrum which acts on. Dragstedt also found that the acid response in Heidenhain-pouch dogs after a meal increased following truncal vagotomy but did not increase following truncal vagotomy plus gastroenterostomy; he thought this indicated increased release of antral gastrin by gastric stasis following truncal vagotomy, although other mechanisms are by: 7.


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Studies on the motility of the denervated Heidenhain pouch by Zacharias Bercowitz Download PDF EPUB FB2

All of the above observations suggest that the vagally denervated antral pouch has characteristic motility and may, in the absence of extrinsic parasympathetic innervation, respond independently of the remaining stomach to various : Kyoji Sugawara, Ramesh C. Chawla, M. Michael Eisenberg. UVNAS B, ANDERSSON S, ELWIN CE, MALM A.

The influence of exclusion of the antrum-duodenum passage on the HCl secretion in Pavlov pouch dogs. Gastroenterology. May; 30 (5)– WOODWARD ER, LYON ES, LANDOR J, DRAGSTEDT LR. The physiology of the gastric antrum; experimental studies on isolated antrum pouches in dogs.

by: 5. Electrical Activity of an Intrinsically Denervated Jejunum of the Unanesthetized Rat. Pages Effect of Peptide YY on Contractile Activity in the Stomach of Heidenhain Pouch Dogs. Pages Gastrointestinal Motility Book Subtitle. The basal secretion of pepsin by the human stomach J. Clin. Invest.

() Bercovitz, Z. Studies on the motility of the denervated Heidenhain pouch Am. Physiol. () Robins, R.B. Boyd, T.E. The fundamental rhythm of the Heidenhain pouch movements and their reflex modification Am.

Physiol. () Cited by: Doses of mg/kg administered orally four to five hours before the secretagogues produced a dose-dependant and up to % inhibition in the outputs of innervated gastric fistula and denervated Heidenhain by: 3.

It was our purpose to study the effects of graded doses of reserpine on the denervated gastric pouch of the rat. It was hoped that the role of vagal innervation in reserpine- stimulated gastric secretion could be further elucidated, since it is not known whether the vagal action is by direct stimulation of the parietal cell mass or by vagally induced re- lease of a humoral by: 1.

In our study, intrapouch administration of MSG in the Pavlov pouch stimulated the main stomach as well as the pouch motility, but intrapouch MSG did not induce any contractile response in the Heidenhain pouch.

The small intestine of the dog was denervated by complete transection of the mesentery except for the superior mesenteric vessels. After intestinal denervation inhibition of the vagally innervated stomach was almost abolished while that in the Heidenhain pouch was by: 5. In this study, we examined the mechanism by which constant intravenous infusion of physiological doses of PYY affects gastric secretion and motility in the vagally innervated (Pavlov) and denervated (Heidenhain) corpus by: In the dog the peptide was spasmogenic on the denervated Heidenhain pouch and the antrum.

The inhibitory activity predominated on the innervated stomach and body fundus. In man the peptide exerted a contracting effect on the antrum and the pylorus and an inhibitory effect on the stomach body and the by: The effects of intravenous infusions of prostaglandin E2 (PGE2) and arachidonic acid (AA) on histamine-stimulated gastric secretion have been studied in conscious dogs with either a simple gastric fistula or a denervated Heidenhain by: gastrointestinal motility (atropine, hexamethonium, and granisetron) were injected intravenously before MSG administration to the stom-ach.

The effect of MSG was investigated in Pavlov (vagally inner-vated corpus pouch), Heidenhain (vagally denervated corpus pouch), and antral pouch (vagally innervated) dogs. Upper gut motility wasCited by: Experimental Study of the Duodenal Inhibition of Gastric Secretion Article (PDF Available) in Annals of Surgery (5) December with 15 Reads How we measure 'reads'.

Initial studies [1, 2] of the denervated rat gastric pouch used only a few animals. We, in this laboratory, sought to determine whether the denervated pouch preparation in the rat was practical from the standpoint of ease of preparation and maintenance of the animal after surgery, and whether the prepara- tion produced a sufficient amount of gastric juice for quantitative by: 1.

Further Studies on the Isolated Gastric Antrum Author links open overlay panel Edward R. Woodward M.D. Charlotte Robertson M.D. Wally Fried B.S.

Herbert Schapiro M.S. Show moreCited by: In this study we evaluated the inhibitory action of GIP in four dogs, each provided with both a vagally denervated (Heidenhain) pouch and a gastric fistula of the innervated stomach.

The effect of intravenous infusion of pure porcine GIP (1 microgram X kg-1 X h-1) on pentagastrin dose response was studied with and without background infusion of.

A great number of studies using Heidenhain pouches have been reported, but most of them have been concerned with secretory activity. Studies on the motor activity of the pouch are few, and our.

The effects of thiopental sodium on the regulation of interdigestive migrating contractions (IMC) in the stomach were investigated in dogs with extrinsically denervated fundic pouches. During the interdigestive state, strong phasic contractions in the pouch took place consistently in accordance with the IMC in the main by: 1.

IN the course of the search for the hormone which results in inhibition of gastric secretion and motility after fat has entered the duodenum, the ability of duodenal extracts to inhibit the Cited by: In other dogs, a vagally innervated gastric pouch was constructed.

After com- pleting the study, the same dogs were reoperated, and the gastric pouches were vagally denervated by transecting the gastric wall be- tween the main stomach and the pouch.

The effect of substance P on gastric motility was studied in conscious dogs by means of strain gauge force transducers chronically implanted on the gastric body, antrum, and a vagally-denervated.

Doses of mg/kg administered orally four to five hours before the secretagogues produced a dose-dependant and up to % inhibition in the outputs of innervated gastric fistula and denervated Heidenhain pouch.

Inhibition was still present 24 hours after administration of UK but was absent at 48 hours.Gastrointestinal motility. action potential complexes are a non-specific myoelectric response.- 54 Electrical activity of an intrinsically denervated jejunum of the unanesthetized rat.- 55 Evidence for a muscarinic inhibitory brake activated by peptides in the canine small intestine.- 56 The ileal brake: a potent mechanism for feedback.