Linked Life Data

1607024

Source:http://linkedlifedata.com/resource/pubmed/id/1607024

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1992-7-17
pubmed:abstractText
The 13C-fractional enrichments in the lactate and alanine methyl carbon positions were determined by 1H NMR spectroscopy of extracts of rat hearts perfused with various concentrations of [3-13C]pyruvate +/- unlabeled glucose or acetate. In general, the 13C-fractional enrichment of the alanine methyl carbon pool paralleled the 13C-fractional enrichment of the acetyl-CoA which entered the TCA cycle (as determined by 13C-isotopomer analysis) while the 13C-fractional enrichment of the lactate methyl carbon was always significantly lower, consistent with a pool of lactate which does not mix with exogeneous [3-13C]pyruvate. This has also been examined in intact, perfused, KCl-arrested rat hearts supplied with [3-13C]pyruvate by proton double quantum metabolite specific spectroscopy (MSS). A comparison of MSS spectra of intact hearts with one pulse spectra of extracts of those same hearts indicates there is a sizeable non-enriched pool of lactate in the intact hearts which is not visible by NMR spectroscopy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
303
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
247-50
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Direct observation of lactate and alanine by proton double quantum spectroscopy in rat hearts supplied with [3-13C]pyruvate.
pubmed:affiliation
Department of Chemistry, University of Texas at Dallas, Richardson 75083-0688.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't