Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1996-12-11
pubmed:abstractText
The antinociceptive properties of mu (D-Ala2, N-Me-Phe4, Gly5-ol, enkephalin, DAGO), delta (D-Ala2, D-leu5, enkephalin, DADL) and kappa (dynorphin, DYN) were assessed using hot plate (heat), acetic acid-induced writhing (chemical) and tail pinch (mechanical) assays in mice. Test drug and control treatments were given by cisternal injection in a dose volume of 10 microliters.mouse-1. DAGO and DADL produced steep dose-response lines in all the tests. DYN did not produce a consistent antinociceptive effect on the tail pinch test. Utilizing these three different types of assays, the rank order of antinociceptive potency for these three opioids was DAGO > DADL > DYN. The responses to the hot plate and writhing assays were completely inhibited by the same dose of DAGO. DADL displayed equal antinociceptive effects in the hot plate and writhing tests. In the tail pinch assay, however, antinociceptive potency of DAGO was 1/3 less than in other two assays, and DADL was also 1/10 less than in the others. The rank order of antinociceptive potency for DYN in different noxia was the writhing > hot plate >> tail pinch. It was concluded that there are differences in the potency of mu-, delta- and kappa-agonists even when the intensities of chemical and heat noxia are equal. It was also proposed that antinociceptive potencies against mechanical noxia is greatly different among mu-, delta- and kappa-agonists.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-4892
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
937-42
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
[Differentiation of antinociceptive effects of mu, delta and kappa agonists using heat, chemical and mechanical nociception].
pubmed:affiliation
Department of Anesthesiology, Hyogo College of Medicine, Nishinomiya.
pubmed:publicationType
Journal Article, English Abstract