Linked Life Data

6099500

Source:http://linkedlifedata.com/resource/pubmed/id/6099500

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
1985-4-26
pubmed:abstractText
DPDPE ([D-Pen2, D-Pen5]-Enkephalin) and DPLPE ([D-Pen2, L-Pen5]-Enkephalin) are conformationally-constrained cyclic analogs of enkephalin with high selectivity for delta opioid receptors. Intracerebroventricular (i.c.v.) administration of each analog acutely produces a complex EEG response in rats characterized by a dose-related increase in spectral power and HVSA (peak frequency of 5.0 Hz) during behavioral stupor, and a theta driving (5.25-8.0 Hz) associated with intense behavioral arousal. These effects were antagonized by high (10 mg/kg), but not low (1.0 mg/kg), doses of naloxone. Both analogs failed to cause EEG or convulsive seizures. In contrast, i.c.v. administration of DADLE ([D-Ala2, D-Leu5]-Enkephalin), an enkephalin analog with activity at both mu and delta binding sites, caused initial nonconvulsive EEG seizures followed by HVSA (3.0 Hz); theta driving was not evident. The incidence of the seizures was dose-related and antagonized by very low doses of naloxone (0.01-1.0 mg/kg). Collectively, the inability of DPDPE and DPLPE to cause seizure activity, and the marked sensitivity of DADLE-induced EEG seizures to naloxone, suggest that delta receptors are not directly responsible for DADLE-induced EEG seizure activity. Furthermore, these data implicate mu opioid receptors as the primary sites responsible for enkephalin-induced seizures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0143-4179
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
213-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Electroencephalographic assessment of the role of delta receptors in opioid peptide - induced seizures.
pubmed:publicationType
Journal Article, Comparative Study