Linked Life Data

3342233

Source:http://linkedlifedata.com/resource/pubmed/id/3342233

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-3-30
pubmed:abstractText
Alloxan diabetes increased 3-O-methylglucose transport rates in rat red blood cells (RBC) at temperatures below 30 degrees C and decreased them above 30 degrees C. Preincubation of RBC from control rats with 20 mM glucose, 3-O-methylglucose, 2-deoxyglucose or xylose greatly elevated transport at 14 degrees C by increasing Vmax. The effect was slight at 40 degrees C. Preincubation with glucose or deoxyglucose alone caused a 50% depression of transport rates at 40 degrees C as a result of a rise in the Km, which is similar to findings in cells from alloxan-diabetic rats. Measurement of intracellular glucose metabolites suggested inhibition of glycolysis in cells from diabetic rats and a positive correlation between the level of intracellular hexose monophosphates and transport inhibition. Membrane fatty-acid and cholesterol composition and membrane lipid-ordering as monitored by electron paramagnetic resonance were not altered by alloxan diabetes. It is concluded that intracellular sugar and sugar metabolism alter the temperature dependence of glucose transport kinetics. Glucose metabolism can feed back to inhibit transport by increasing the transport Km at physiological temperatures only.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
938
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
222-30
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Temperature dependence of glucose transport in erythrocytes from normal and alloxan-diabetic rats.
pubmed:affiliation
Department of Molecular Physiology and Biophysics, Vanderbilt School of Medicine, Nashville, TN 37232.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't