Linked Life Data

7612874

Source:http://linkedlifedata.com/resource/pubmed/id/7612874

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1995-8-22
pubmed:abstractText
Development of differential cell culture systems has facilitated the study of cellular and physiological actions of growth factors. Here we report the novel effects of insulin and insulin-like growth factor (IGF)-I on energy metabolism in cerebral cortical neurones, astrocytes and co-cultures thereof. Incorporation of label from [1-13C]glucose into lactate has been shown to involve both glycolysis and the tricarboxylic acid cycle in astrocytes. Thus 13C nuclear magnetic resonance spectroscopy was used to monitor mitochondrial function by measuring 13C labelling of the C-2 position of lactate. It could be demonstrated that insulin and IGF-I have similar effects on mitochondria but individual effects on cytosolic glucose metabolism. Evidence is presented that IGF-I and insulin stimulate neurones to release factors affecting astrocytic lactate production. Furthermore, lactate released from neuronal-astrocytic co-cultures was mostly of astrocytic origin, implicating the importance of lactate for neuronal metabolism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
878-80
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
13C NMR study of IGF-I- and insulin-effects on mitochondrial function in cultured brain cells.
pubmed:affiliation
MR-Centre, SINTEF UNIMED, Trondheim, Norway.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't