Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1982-4-20
pubmed:abstractText
Relaxing effects of nitroprusside and verapamil on the resting or K-stimulated tension and 45Ca uptake in human umbilical vessels were investigated. Both nitroprusside and verapamil reduced the resting and K-stimulated tensions in a dose-dependent manner. Nitroprusside was much more effective than verapamil in reducing resting tension. However, verapamil caused a greater relaxation of the K-induced contraction than nitroprusside. In a Ca2+-free medium, K+ still caused a small and sustained contraction. Nitroprusside abolished the contraction in the Ca2+-free medium, which verapamil failed to inhibit. Neither nitroprusside nor verapamil affected the resting 45Ca uptake measured by a lanthanum method. The K-induced increase in 45Ca uptake was inhibited by verapamil, but not by nitroprusside. The results suggest that nitroprusside unlike verapamil does not act as a Ca2+ influx inhibitor resulting in the relaxation of human umbilical vessels.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0303-6847
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
321-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
A comparative study of the relaxing effect of nitroprusside and verapamil on human umbilical vessels.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't