rdf:type |
|
lifeskim:mentions |
umls-concept:C0006675,
umls-concept:C0023693,
umls-concept:C0023721,
umls-concept:C0031760,
umls-concept:C0178719,
umls-concept:C0597484,
umls-concept:C0871261,
umls-concept:C1280500,
umls-concept:C1533685,
umls-concept:C1704448,
umls-concept:C1704632,
umls-concept:C1706817,
umls-concept:C2911692
|
pubmed:issue |
6
|
pubmed:dateCreated |
1972-7-20
|
pubmed:abstractText |
During intracellular iontophoretic injection of Ca(++) into Limulus ventral photoreceptor cells, there is a progressive diminution of the light response. Following Ca(++) injection, the size of the light response slowly recovers. Similarly, there is a progressive diminution of the light response during intracellular injection of Na(+) and recovery after the injection is stopped. The rate of diminution during Na(+) injection is greater for higher [Ca(++)](out). In solutions which contain 0.1 mM Ca(++), there is nearly no progressive decrease in the size of the light response during Na(+) injection. Intracellular injections of Li(+) or K(+) do not progressively decrease the size of the light response. We propose that an increase in [Na(+)](in) leads to an increase in [Ca(++)](in) and that an increase in [Ca(++)](in) by any means leads to a reduction in responsiveness to light.
|
pubmed:commentsCorrections |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0022-1295
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
59
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
701-19
|
pubmed:dateRevised |
2010-6-22
|
pubmed:meshHeading |
pubmed-meshheading:5025746-Animals,
pubmed-meshheading:5025746-Biological Transport, Active,
pubmed-meshheading:5025746-Brachyura,
pubmed-meshheading:5025746-Calcium,
pubmed-meshheading:5025746-Chelating Agents,
pubmed-meshheading:5025746-Light,
pubmed-meshheading:5025746-Membrane Potentials,
pubmed-meshheading:5025746-Ocular Physiological Phenomena,
pubmed-meshheading:5025746-Photoreceptor Cells,
pubmed-meshheading:5025746-Potassium Chloride,
pubmed-meshheading:5025746-Radiation Effects,
pubmed-meshheading:5025746-Seawater,
pubmed-meshheading:5025746-Sodium,
pubmed-meshheading:5025746-Sodium Chloride
|
pubmed:year |
1972
|
pubmed:articleTitle |
The effects of intracellular iontophoretic injection of calcium and sodium ions on the light response of Limulus ventral photoreceptors.
|
pubmed:publicationType |
Journal Article,
In Vitro
|