Linked Life Data

8102969

Source:http://linkedlifedata.com/resource/pubmed/id/8102969

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-9-30
pubmed:abstractText
The effect of intracerebroventricular (i.c.v.) injection of dynorphin A-(1-13) on the memory process was examined in mice, using spontaneous alternation performance related to working memory in a Y-maze. Dynorphin A-(1-13) (1, 3 and 10 micrograms) influenced neither spontaneous alternation performance nor total arm entries, which are considered to reflect locomotor activity. In contrast, dynorphin A-(1-13) (3 and 10 micrograms) significantly improved the impairment of spontaneously alternation performance induced by scopolamine (1 mg/kg s.c.). Simultaneously, the scopolamine-induced increase in total arm entries was markedly attenuated by dynorphin A-(1-13) (10 micrograms). The effect of dynorphin A-(1-13) (3 micrograms) on the scopolamine-induced impairment of spontaneous alternation was almost completely reversed by pretreatment with nor-binaltorphimine (4 micrograms i.c.v.), a kappa-selective opioid antagonist. These findings suggest that dynorphin A-(1-13) improves through the mediation of kappa-opioid receptors the scopolamine-induced impairment of spontaneous alternation performance associated with working memory.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
236
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
341-5
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Dynorphin A-(1-13) markedly improves scopolamine-induced impairment of spontaneous alternation performance in mice.
pubmed:affiliation
Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Meijo University, Nagoya, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't