Linked Life Data

10236

Source:http://linkedlifedata.com/resource/pubmed/id/10236

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1977-1-3
pubmed:abstractText
Dibenamine (DB) produced contraction due to influx and release of Ca in normal medium, whereas it produced relaxation of the K-induced contraction due to depression of the activity of the muscle cell membrane. DB inhibited active influx, passive influx and release of Ca induced by ACh in this order as the concentrations were increased and also inhibited the contraction by histamine selectively as compared with the contractions by ACh, K and Ba, the inhibition of the ACh-, K- and Ba-contractions being almost to the same degree. In addition, DB inhibited to much the same degree the phasic contraction(PC) and tonic contraction(TC) by histamine, whereas it inhibited TC in preference to PC induced by ACh, K and Ba. Irreversible inhibition by DB of ACh-, K- and Ba-induced contractions were protected by Ca, whereas those of histamine-induced contraction were selectively protected by histamine and antihistamine, but not by Ca. These results indicate that the antagonism of DB and its irreversibility against histamine may be due to blockade of the histaminergic receptor, whereas those against ACh, K and Ba may be due to inhibition of the Ca-site. Evidence has been obtained suggesting that the irreversible parallel shift to the right of the log concentration-action curve of histamine after washout of DB may be due to spare receptors, whereas that of ACh, K or Ba may be due to inhibition of the Ca-site.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0015-5691
pubmed:author
pubmed:issnType
Print
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
249-58
pubmed:dateRevised
2011-7-27
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
[Action mechanism of dibenamine on the tonus and inhibition of drug-induced contraction of the isolated guinea pig ileum, with special reference to its relationship to Ca].
pubmed:publicationType
Journal Article, In Vitro, English Abstract