Linked Life Data

15696859

Source:http://linkedlifedata.com/resource/pubmed/id/15696859

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-2-8
pubmed:abstractText
Rat lactotrope cells in primary cultures have a higher intracellular Cl- concentration ([Cl-]i) than that predicted by a passive distribution across the membrane. This suggests that active cellular mechanisms ensure this ionic equilibrium. In this study, we examined the interactions between pHi, [Cl-]i regulation and cell energetics. We analyzed: 1. the interactions between extracellular Cl- concentrations, [Cl-]i and cellular energy; 2. the influence of [Cl-]i on respiratory chain function; 3. the correlation with glycolysis and; 4. the role played by pHi in these cellular mechanisms. We show that low [Cl-]i decreases ATP cell content, ATP/ADP ratio and modify phosphorylative oxidations. ATP production is rather due to the anaerobic pathway of the glucose metabolism than the aerobic one and depends also on other metabolic substrates among which glutamine probably has a special role. Finally, pHi appears as a determinant in the balance between aerobic and anaerobic pathways. These results are discussed in relation to the role of Cl- in normal and pathological (effect of hypoxia on mature and immature neurons) cell situations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0231-5882
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
195-208
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Interactions between intracellular chloride concentrations, intracellular pH and energetic status in rat lactotrope cells in primary culture.
pubmed:affiliation
CNRS UMR 5543, Universit Victor Segalen Bordeaux 2, Bordeaux, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't