PMID: 3745774Jul 1, 1986Paper

Further data on the inhibitory enterogastric reflex triggered by intestinal osmotic changes in cats

Journal of the Autonomic Nervous System
L GarnierJ Mélone

Abstract

The relationship between osmotic pressure in the intestinal lumen and gastric motor activity was studied in anesthetized cats. For this purpose the EMG was recorded in the antrum while the small intestine (duodenum and the first part of jejunum) was perfused with various solutions: tap water (5 mOsm), NaCl, mannitol and glucose having an osmotic pressure of 70, 138, 275, 550 or 1100 mOsm. Hypotonic and hypertonic solutions both induced a decrease in the gastric activity, i.e. an increase in period of electrical control activity. This effect was found to depend both on the osmolarity value (the osmotic pressures furthest removed from the isotonic value produced the greatest effect) and on the substance used (glucose, mannitol and NaCl, in decreasing order of efficiency). The isotonic solution of glucose and, to a lesser extent, of mannitol was also active, unlike the isotonic solution of NaCl. All these gastric changes were prevented by cervical bivagotomy. It was concluded that the vagal osmosensitive receptors located in the small intestine trigger this inhibitory enterogastric reflex which probably constitutes an important part in the regulation of gastric emptying.

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Citations

Nov 1, 1986·Journal of the Autonomic Nervous System·J Mélone
Apr 1, 1992·Journal of the Autonomic Nervous System·L Bojö, J Cassuto
Aug 26, 2003·American Journal of Physiology. Gastrointestinal and Liver Physiology·Isabel Martinez-Peña y ValenzuelaR Alberto Travagli
Jan 30, 2016·Journal of Veterinary Emergency and Critical Care·KimMi WhiteheadLaura Eirmann
Jun 14, 2006·Developmental Psychobiology·Aron Weller
May 26, 2004·Physiology & Behavior·Robert C Ritter
Jan 1, 1991·Scandinavian Journal of Rheumatology. Supplement·E M Veys
Jul 28, 2018·The Journal of Clinical Endocrinology and Metabolism·Simon VeedfaldChristopher K Rayner
Feb 14, 2016·Advances in Physiology Education·Ahmad Ghorbani, Kiarash Ghazvini
Feb 9, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·M CovasaG A Burns
Jan 25, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·A WellerG P Smith

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