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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1983-11-23
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pubmed:abstractText |
In experimental diabetes, a number of intestinal brush-border hydrolases and transport systems are stimulated. In this study, we assessed possible effects of diabetes on the composition and membrane fluidity of rat intestinal brush-border membranes that might correlate with these functional changes. We found similar proportions of lipid and protein in the diabetic and control preparations, although there was a considerable increase in total membrane from the diabetic rats, presumably reflecting mucosal hyperplasia. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of membrane protein revealed an increase in the bands corresponding to sucrase-isomaltase, consistent with an increased enzyme activity of sucrase. Membrane lipid analysis revealed only a decrease in fatty acids of the neutral lipid fraction of diabetics--a change that may well have occurred during membrane preparation. 1-6-Diphenyl-1,3,5-hexatriene fluorescence polarization data, obtained as a function of temperature, was similar for the diabetic and control rats, with a three-phase linear model superior to one- and two-phase linear or quadratic models. The overall composition of the intestinal brush-border membrane, unlike other plasma membranes, appears little affected by experimental diabetes.
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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 |
0026-0495
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
32
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1053-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6621363-Animals,
pubmed-meshheading:6621363-Carbohydrates,
pubmed-meshheading:6621363-Chromatography, Thin Layer,
pubmed-meshheading:6621363-Diabetes Mellitus, Experimental,
pubmed-meshheading:6621363-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:6621363-Fluorescence Polarization,
pubmed-meshheading:6621363-Intestinal Mucosa,
pubmed-meshheading:6621363-Male,
pubmed-meshheading:6621363-Membrane Fluidity,
pubmed-meshheading:6621363-Membrane Lipids,
pubmed-meshheading:6621363-Membrane Proteins,
pubmed-meshheading:6621363-Microvilli,
pubmed-meshheading:6621363-Rats,
pubmed-meshheading:6621363-Rats, Inbred Strains
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pubmed:year |
1983
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pubmed:articleTitle |
Intestinal mucosa in diabetic rats: studies of microvillus membrane composition and microviscosity.
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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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