Linked Life Data

1319959

Source:http://linkedlifedata.com/resource/pubmed/id/1319959

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-7-31
pubmed:abstractText
An orally effective, nonpeptide vasopressin V1 receptor antagonist, OPC-21268 was produced for possible human use. We investigated the effects of OPC-21268 on the vascular effects of intra-arterially infused arginine vasopressin in human forearm vessels. The brachial artery was cannulated for drug infusions and direct measurement of arterial pressure. Forearm blood flow was measured by a strain gauge plethysmograph, and forearm vascular resistance was calculated. Arginine vasopressin was infused intra-arterially at doses of 0.02, 0.06, 0.09, 0.2, 0.6, and 1.2 ng/kg/min. The lower doses of arginine vasopressin increased, whereas the higher doses of arginine vasopressin decreased forearm vascular resistance (p less than 0.01). Intra-arterial infusion of phenylephrine at doses of 0.2, 0.4, and 2.4 micrograms/min increased forearm vascular resistance dose-dependently (p less than 0.01). OPC-21268 (50 mg for two, 100 mg for six, and 200 mg for two subjects) given orally did not alter resting arterial pressure, forearm vascular resistance, or heart rate. OPC-21268 decreased vasoconstrictor responses to arginine vasopressin at doses of 0.02 (p less than 0.02) and 0.09 (p less than 0.05) ng/kg/min and augmented vasodilator responses to arginine vasopressin at a dose of 1.2 ng/kg/min (p less than 0.01). However, the vasoconstrictor responses to phenylephrine were not altered by OPC-21268. These results demonstrated that OPC-21268 effectively and specifically antagonized the V1 receptor-mediated vasoconstriction in human forearm resistance vessels. These results suggest that OPC-21268 may be useful therapeutically to antagonize the vasoconstriction caused by arginine vasopressin in some pathological states.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0194-911X
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
54-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Effects of OPC-21268, an orally effective vasopressin V1 receptor antagonist in humans.
pubmed:affiliation
Research Institute of Angiocardiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
pubmed:publicationType
Journal Article