Linked Life Data

3967807

Source:http://linkedlifedata.com/resource/pubmed/id/3967807

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1985-3-14
pubmed:abstractText
Pharmacologic characteristics of muscarinic receptors in the muscularis mucosae of the guinea pig esophagus were examined in vitro and compared with those of the longitudinal muscle of the guinea pig ileum. All cholinomimetics tested produced a sustained contraction of the muscularis mucosae, in a concentration-dependent manner, which was associated with a small biphasic change in membrane potential, initially a hyperpolarization followed by a depolarization. The contractile response was hardly modified by verapamil, but was depressed by calcium removal from the bathing medium. Both atropine and pirenzepine antagonized the contractile response in a competitive manner, with higher pA2 values than those in the ileum. These results indicate that the muscarinic receptors of the muscularis mucosae of the guinea pig esophagus mainly link with calcium ion channels which are independent of changes in membrane potential and that their subtype populations are probably pharmacologically distinct from those in the ileal longitudinal muscle.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0016-5085
pubmed:author
pubmed:issnType
Print
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
706-16
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Heterogeneity of muscarinic receptors in the guinea pig esophageal muscularis mucosae and ileal longitudinal muscle.
pubmed:publicationType
Journal Article, In Vitro