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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1984-7-27
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pubmed:abstractText |
The relative influence of adrenergic receptors on gastric acid secretion in the dog stomach with different vagal activity or "tone" is almost unknown. beta-adrenoceptors seem to be most important for the direct effect of adrenergic stimulation on acid secretion. In this study the effects of vagotomy and beta 2-adrenoceptor activity were studied in conscious gastric fistula dogs. Pentagastrin stimulated acid output was increased slightly in non-vagotomized dogs and to its prevagotomy level in vagotomized dogs after propranolol infusion. Practolol showed no such effect. Histamine stimulated acid secretion was not influenced significantly by beta-blockade. Similar dose-response curves were found for non-vagotomized dogs with high beta 2-adrenergic tone and dogs with low vagal tone (vagotomy) after pentagastrin and histamine stimulated acid secretion. This study indicates that a counterbalance between beta 2-adrenergic and cholinergic vagal tone exists. A "tonic balance theory" is suggested and is probably involved in the resulting acid secretion after vagotomy.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Adrenergic beta-Antagonists,
http://linkedlifedata.com/resource/pubmed/chemical/Pentagastrin,
http://linkedlifedata.com/resource/pubmed/chemical/Practolol,
http://linkedlifedata.com/resource/pubmed/chemical/Propranolol,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic, beta
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pubmed:status |
MEDLINE
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pubmed:issn |
0085-5928
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
89
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
117-20
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pubmed:dateRevised |
2008-2-13
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pubmed:meshHeading |
pubmed-meshheading:6146187-Adrenergic beta-Antagonists,
pubmed-meshheading:6146187-Animals,
pubmed-meshheading:6146187-Dogs,
pubmed-meshheading:6146187-Gastric Acid,
pubmed-meshheading:6146187-Pentagastrin,
pubmed-meshheading:6146187-Practolol,
pubmed-meshheading:6146187-Propranolol,
pubmed-meshheading:6146187-Receptors, Adrenergic,
pubmed-meshheading:6146187-Receptors, Adrenergic, beta,
pubmed-meshheading:6146187-Stimulation, Chemical,
pubmed-meshheading:6146187-Vagus Nerve
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pubmed:year |
1984
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pubmed:articleTitle |
Adrenergic receptors and gastric secretion in dogs. Is a "tonic balance" relationship between vagal and beta 2-adrenergic activity a possibility?
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pubmed:publicationType |
Journal Article,
Comparative Study
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