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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1994-11-16
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pubmed:abstractText |
Na+,K(+)-ATPase activity in nerve is reduced in rats with streptozotocin-induced diabetes; three different isoforms of the alpha (catalytic) subunit of the enzyme are present in nerve. Using western blot to determine subunit isoform polypeptide levels in sciatic nerve, we found a substantial reduction in alpha 1-isoform polypeptide (88% at 3 weeks, 94% at 8 weeks) after induction of diabetes by streptozotocin. Reductions in alpha 2 and alpha 3 polypeptide were smaller and not statistically significant. The reduction in amount of all three isoform polypeptides in the nerve of 3-week diabetic animals was corrected by administration of insulin. Accumulation of alpha 1 polypeptide at a nerve ligature indicated that rapid transport of that polypeptide in nerve occurs with normal kinetics. The results implicate a specific marked deficit in alpha 1, much more than alpha 2 or alpha 3, catalytic subunit isoform of Na+,K(+)-ATPase in the pathogenesis of diabetic neuropathy.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0022-3042
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
63
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1782-6
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:7931333-Animals,
pubmed-meshheading:7931333-Blotting, Western,
pubmed-meshheading:7931333-Diabetes Mellitus, Experimental,
pubmed-meshheading:7931333-Isomerism,
pubmed-meshheading:7931333-Male,
pubmed-meshheading:7931333-Neurons,
pubmed-meshheading:7931333-Rats,
pubmed-meshheading:7931333-Rats, Sprague-Dawley,
pubmed-meshheading:7931333-Sodium-Potassium-Exchanging ATPase,
pubmed-meshheading:7931333-Streptozocin
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pubmed:year |
1994
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pubmed:articleTitle |
Isoform specific reductions in Na+,K(+)-ATPase catalytic (alpha) subunits in the nerve of rats with streptozotocin-induced diabetes.
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pubmed:affiliation |
Department of Neurology, University of Michigan, Ann Arbor 48105.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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