Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1977-5-20
pubmed:abstractText
The vast majority of morphine-sensitive single units in the area examined were localized to the locus coeruleus. This corresponds well with the known distribution of the highest densities of opiate receptor sites in this region of the midbrain. The effect of iontophoretically applied morphine was a marked and prolonged depression of spontaneous activity. Levorphanol, an opiate agonist, produced an effect similar to that of morphine while comparable doses of dextrorphan, it's clinically inactive stereoisomer, did not. Naloxone and levallorphan prevented as well as reversed the depression due to application of agonists. While the units were depressed following the application of opiate agonists, the cells were still excited by the neurotransmitter acetylcholine. We conclude that (1) neuronal sensitivity to opiates has a high positive correlation with autoradiographically determined opiate receptor sites, and (2) this sensitivity to opiates is blocked by opiate antagonists and is stereospecific in nature.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
122
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
523-33
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Iontophoretic application of opiates to the locus coeruleus.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.