Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6 Pt 1
|
pubmed:dateCreated |
1990-2-12
|
pubmed:abstractText |
The effect of external K+ on the delayed K+ current was investigated in rabbit single Purkinje cells. Whole cell voltage clamp and intracellular dialysis were used. At K+ concentrations less than 1 mM the kinetics of the delayed K+ current were not changed, but the conductance was markedly reduced. This effect was due to a direct change at an extracellular site and not due to secondary changes in intracellular Na+ or Ca2+ concentrations. A rise in intracellular Na+ or Ca2+ rather increased the delayed K+ current. The decrease in the delayed K+ current in low external K+ was absent when the experiments were done in Na+-free solution. It is concluded that external Na+ exerts an inhibitory effect on the conductance of the delayed K+ current.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0002-9513
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
257
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
C1086-92
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:2610249-Action Potentials,
pubmed-meshheading:2610249-Animals,
pubmed-meshheading:2610249-Calcium,
pubmed-meshheading:2610249-Electric Conductivity,
pubmed-meshheading:2610249-Electrophysiology,
pubmed-meshheading:2610249-Potassium,
pubmed-meshheading:2610249-Potassium Channels,
pubmed-meshheading:2610249-Purkinje Cells,
pubmed-meshheading:2610249-Rabbits,
pubmed-meshheading:2610249-Sodium
|
pubmed:year |
1989
|
pubmed:articleTitle |
Delayed K+ current and external K+ in single cardiac Purkinje cells.
|
pubmed:affiliation |
Laboratory of Physiology, University of Leuven, Campus Gasthuisberg, Belgium.
|
pubmed:publicationType |
Journal Article,
In Vitro
|