Linked Life Data

24778

Source:http://linkedlifedata.com/resource/pubmed/id/24778

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1978-5-17
pubmed:abstractText
Papaverine (Pap) inhibited a tonic tension development in guinea pig taenia coli induced by an elevation of the potassium concentration of the medium to 40 mM (40-K). The ID50 of Pap was 4.5 x 10(-6) M. Inhibition of the 40-K induced tonic tension by Pap was dependent on the calculated concentration of non-ionized form, but not the ionized form. Inhibition of the tonic tension by Pap and various metabolic inhibitors was not antagonized by raising the Ca++ concentration in the medium. Results obtained from simultaneous measurement of the 40-K induced O2 consumption and tension illustrated that the inhibition of O2 consumption rapidly induced the inhibition of the tension. Furthermore, glucose removal, amytal or Pap resulted in a progressive relationship between the inhibition of O2 consumption and the inhibition of tension. The inhibition of Pap as determined by O2 consumption was not reversed by application of 10(-4) M 2,4-dinitrophenol (DNP). These results plus graphical analysis of the mechanical response suggest that Pap may penetrate the cell membrane and inhibit mitochondrial respiration, thereby inhibiting this very respiration-dependent contracture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0021-5198
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
833-43
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
The inhibitory effect of papaverine on respiration-dependent contracture of guinea pig taenia coli in high-K medium. I. The relationship between contracture and respiration.
pubmed:publicationType
Journal Article, In Vitro