Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-6-8
pubmed:abstractText
Insulin binding and insulin receptor down-regulation characteristics were evaluated, as well as cholesterol and phospholipid levels in erythrocytes from 22 patients with liver cirrhosis. These parameters were correlated with clinical characteristics and with scores related to severity of the liver injury. Nine healthy subjects were studied as a control group. It was observed that insulin binding was generally greater in patients than in controls because of an increase in surface insulin receptor numbers, rather than from a change in receptor affinities. In cirrhotic patients, the erythrocyte insulin receptors did not undergo the normal down-regulation process but, in most cases, increased in response to insulin incubation. The alterations in insulin processing characteristics were more frequent in patients with alcoholic cirrhosis and more severe liver impairment and correlated with the changes in the lipid composition of erythrocyte membranes. In particular, an increase in the cholesterol to phospholipid molar ratio and a decrease in polyunsaturated fatty acid content of phospholipids in erythrocyte membranes of cirrhotic patients was associated with impairments in insulin receptor processing. Similar changes in insulin receptor processing were observed when the molar ratio of cholesterol to phospholipid in normal erythrocytes was modified in vitro by incubation with cholesterol-rich liposomes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0392-0623
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
65-71
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Altered insulin receptor processing and membrane lipid composition in erythrocytes of cirrhotic patients.
pubmed:affiliation
Arkansas College, Batesville.
pubmed:publicationType
Journal Article, Comparative Study, In Vitro, Review, Research Support, Non-U.S. Gov't