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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1990-4-17
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pubmed:abstractText |
The tensiometric properties of smooth muscle strips from 10 male guinea pig gallbladders were evaluated following acetylcholine (ACH), cholecystokinin octapeptide (CCK-OP), cerulein (CRL) and histamine (HIS) administration. All agonists induced dose-dependent tonic contractions with the maximum effect caused by the octapeptide. CRL showed a 9-folds higher relative potency when compared to CCK-OP. ED50s of agonists were: ACH 1.36 +/- 0.28 SEM microM (n = 14; range 0.20-3.60); HIST, 5.7 +/- 1.9 microM (n = 12; range 1-23); CRL 0.72 +/- 0.15 nM (n = 8; range 0.35-1.07); CCK-OP, 6.77 +/- 1.80 nM (n = 12; range 0.44-20.32); For the same strips, max tension (g), was: 1.97 (SEM 0.12) for ACH; 1.5 (0.18) for HIST; 1.81 (0.18) for CRL; 2.44 (0.14) for CCK-OP. Pretreatment of the strips with atropine (1 microM) completely abolished ACh-induced contractions, without affecting either CCK-OP or CRL responses. The model represents a valid "in vitro" study of different molecules whose action might stimulate, enhance or inhibit the physiological hormonal and non-hormonal effect of the agonists at the level of animal and human gallbladder smooth muscle.
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pubmed:language |
ita
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0037-8771
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
65
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
877-83
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2627347-Acetylcholine,
pubmed-meshheading:2627347-Animals,
pubmed-meshheading:2627347-Caerulein,
pubmed-meshheading:2627347-Gallbladder,
pubmed-meshheading:2627347-Guinea Pigs,
pubmed-meshheading:2627347-Histamine,
pubmed-meshheading:2627347-Male,
pubmed-meshheading:2627347-Muscle Contraction,
pubmed-meshheading:2627347-Sincalide
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pubmed:year |
1989
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pubmed:articleTitle |
[Tensiometric study of muscular strips of guinea pig gallbladder].
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pubmed:publicationType |
Journal Article,
English Abstract
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