Linked Life Data

7583318

Source:http://linkedlifedata.com/resource/pubmed/id/7583318

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1995-12-14
pubmed:abstractText
The present study examines the modulation by opiates of intracellular calcium levels and calcium entry, using fura-2 imaging and 45Ca2+ uptake, in three neuronal cell lines. We show that opiates (10(-7)-10(-5) M morphine and 10(-9)-10(-7) M etorphine) exert both inhibitory and excitatory effects on KCl-induced elevation in intracellular calcium level in SK-N-SH, NG108-15 and NMB cell lines. In addition, opiates elevate basal (non KCl-stimulated) intracellular calcium level in all three cell cultures. 45Ca2+ uptake is augmented by opiates in SK-N-SH cells and this stimulatory effect is not blocked by pertussis toxin. In NMB cells, an additional inhibitory effect of opiates on basal calcium takes place: opiates reduce intracellular calcium level as measured by fura-2, and decrease calcium influx as detected by 45Ca2+ uptake. The heterogeneity in the opioid regulation of calcium could not be attributed to the type of opioid drug, neither to its concentration nor to the experimental conditions, since neighboring cells within the same culture responded differently.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
687
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
94-102
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Multiple effects of opiates on intracellular calcium level and on calcium uptake in three neuronal cell lines.
pubmed:affiliation
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel-Aviv University, Israel.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't