Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
19
pubmed:dateCreated
1991-11-25
pubmed:abstractText
The present study examined interaction between dexamethasone (DEX) and morphine on the locomotor activity in groups of mice by using the activity cage test. Morphine administration (30-75-150 mg/kg, ip) induced a dose-related increase of the locomotor activity of mice, whereas DEX per se (0.1-1.0-10 mg/kg, ip) did not modify the activity of control mice. Pretreatment of mice with DEX 0.1 mg did not alter the hyperactivity produced by the three doses of morphine. In contrast, DEX administered at 1.0 mg reduced the morphine effects on locomotor activity, whereas DEX at 10 mg potentiated the morphine hypermotility. Our results suggest that DEX may play an important regulatory role on the central effects of morphine through a differential modulation of brain excitability systems.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0024-3205
pubmed:author
pubmed:issnType
Print
pubmed:volume
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1411-8
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Dexamethasone induces biphasic effect on morphine hypermotility in mice: a dose-related phenomenon.
pubmed:affiliation
Department of Experimental Pharmacology, University of Naples, Italy.
pubmed:publicationType
Journal Article