Document Detail


Gastric acid, plasma gastrin, and somatostatin responses to feeding and exogenous gastrin alone and in combination in conscious cats.
MedLine Citation:
PMID:  2879717     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Meat in the stomach or duodenum potentiates pentagastrin-induced acid secretion in cats, presumably by a humoral mechanism. In the present study on cats, a meat meal significantly augmented the maximal acid response from a Heidenhain pouch (HP) to pentagastrin or to human synthetic gastrin I by 31 and 30%, respectively. The maximal HP acid response to pentagastrin was augmented also by peptone instilled into the stomach through a gastric fistula. Intravenous infusion of amino acids stimulated acid secretion but did not augment the maximal acid response to pentagastrin. The plasma concentrations of gastrin and somatostatin increased during infusion of pentagastrin and gastrin I and were not further altered by simultaneous feeding. The present results indicate that the mechanism for potentiation of gastrin-induced acid secretion is of physiological significance, since feeding augmented also the acid response to heptadecapeptide gastrin, the only gastrin secreted from the antrum and duodenum in cats. The potentiation of acid secretion is not dependent on the vagal excitation induced by oral feeding, since potentiation was demonstrated also by intragastric peptone instillation. The mechanism for the potentiation is not due to absorbed amino acids or a decrease of plasma somatostatin.
Authors:
M Fernström; K Uvnäs-Moberg; S Emås
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Digestive diseases and sciences     Volume:  32     ISSN:  0163-2116     ISO Abbreviation:  Dig. Dis. Sci.     Publication Date:  1987 Feb 
Date Detail:
Created Date:  1987-03-12     Completed Date:  1987-03-12     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7902782     Medline TA:  Dig Dis Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  177-83     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cats
Cattle
Dose-Response Relationship, Drug
Duodenum / metabolism
Eating*
Evaluation Studies as Topic
Gastric Acid / metabolism*
Gastric Acidity Determination
Gastric Fundus / metabolism
Gastrins / blood*,  pharmacology
Pentagastrin / pharmacology
Somatostatin / secretion*
Stimulation, Chemical
Time Factors
Chemical
Reg. No./Substance:
0/Gastrins; 51110-01-1/Somatostatin; 5534-95-2/Pentagastrin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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