Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1983-11-23
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0026-0495
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1053-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Intestinal mucosa in diabetic rats: studies of microvillus membrane composition and microviscosity.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.