Linked Life Data

4057365

Source:http://linkedlifedata.com/resource/pubmed/id/4057365

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1985-11-25
pubmed:abstractText
The effect of bladder filling on vesical blood flow was studied in anesthetized cats. The pelvic nerves were sectioned and the bladder venous outflow was recorded by a drop counter. Filling of the bladder induced a sustained increase in vesical blood flow, related to the bladder volume. Thus, injection of 10, 20 and 30 ml. of saline decreased bladder vascular resistance by 27, 47 and 52 per cent, respectively. This vasodilation occurred despite a steady state increase in bladder pressure by 25 to 50 cm. H2O. Upon emptying of the bladder, blood flow decreased towards control values. The response was unaffected by alpha-adrenoceptor blockade (phentolamine), beta-adrenoceptor blockade (propranolol) and muscarinic cholinoceptor blockade (atropine). The vasodilation was eliminated by papaverine, indicating that the response was not due to a rearrangement of the vessels at large bladder volumes. The vasodilation was not associated with any increase in the concentrations of vasoactive intestinal polypeptide (VIP) or substance P in the venous effluent blood. Indomethacin significantly reduced the vasodilatation induced by filling. We conclude that local mechanisms, possibly involving release of prostaglandins, are involved in the vasodilation following bladder distension.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-5347
pubmed:author
pubmed:issnType
Print
pubmed:volume
134
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1041-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Changes in vascular resistance in the feline urinary bladder in response to bladder filling.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't