Biomaterial Database

Changes in the electrical activity of the gastric remnant after Billroth II gastrectomy in dogs. 1993

E Atanassova, and B Kornovski

Institute of Physiology, Sofia, Bulgaria.

Chronic experiments were performed on dogs with Biller II gastrectomy followed by Roux-Y gastrojejunostomy. Gastric mucosa valve was made in the region of the gastrointestinal anastomosis in order to prevent the rapid gastric evacuation. Electrical activity of the gastric remnant, duodenum and jejunum was led off by six bipolar, silver, ball-shaped electrodes, implanted subserously on the muscle wall. Continuous bursting of groups of spike potentials with the slow gastric potentials in the usual rhythm (4.5-5 cpm) occurred during the 1st month after surgery. However, at the end of the 2nd month after surgery there were periods of tachygastria. The frequency of the gastric potentials was lower (7.52 +/- 1.37 cpm, n = 26) or higher (20.40 +/- 0.68 cpm, n = 30) compared to that of the jejunal slow waves (14.11 +/- 0.18 cpm, n = 50), i.e., it was different from the frequency of the jejunal slow waves.

UI	MeSH Term	Description	Entries
D007421	Intestine, Small	The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.	Small Intestine,Intestines, Small,Small Intestines
D007583	Jejunum	The middle portion of the SMALL INTESTINE, between DUODENUM and ILEUM. It represents about 2/5 of the remaining portion of the small intestine below duodenum.	Jejunums
D008564	Membrane Potentials	The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).	Resting Potentials,Transmembrane Potentials,Delta Psi,Resting Membrane Potential,Transmembrane Electrical Potential Difference,Transmembrane Potential Difference,Difference, Transmembrane Potential,Differences, Transmembrane Potential,Membrane Potential,Membrane Potential, Resting,Membrane Potentials, Resting,Potential Difference, Transmembrane,Potential Differences, Transmembrane,Potential, Membrane,Potential, Resting,Potential, Transmembrane,Potentials, Membrane,Potentials, Resting,Potentials, Transmembrane,Resting Membrane Potentials,Resting Potential,Transmembrane Potential,Transmembrane Potential Differences
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D004386	Duodenum	The shortest and widest portion of the SMALL INTESTINE adjacent to the PYLORUS of the STOMACH. It is named for having the length equal to about the width of 12 fingers.	Duodenums
D004594	Electrophysiology	The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
D005743	Gastrectomy	Excision of the whole (total gastrectomy) or part (subtotal gastrectomy, partial gastrectomy, gastric resection) of the stomach. (Dorland, 28th ed)	Gastrectomies
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013270	Stomach	An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM.	Stomachs
D016065	Myoelectric Complex, Migrating	A pattern of gastrointestinal muscle contraction and depolarizing myoelectric activity that moves from the stomach to the ILEOCECAL VALVE at regular frequency during the interdigestive period. The complex and its accompanying motor activity periodically cleanse the bowel of interdigestive secretion and debris in preparation for the next meal.	Migrating Motor Complex,Complexes, Migrating Motor,Complexes, Migrating Myoelectric,Complex, Migrating Motor,Complex, Migrating Myoelectric,Migrating Motor Complexes,Migrating Myoelectric Complex,Migrating Myoelectric Complexes,Motor Complex, Migrating,Motor Complexes, Migrating,Myoelectric Complexes, Migrating

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