Linked Life Data

7356845

Source:http://linkedlifedata.com/resource/pubmed/id/7356845

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1980-3-24
pubmed:abstractText
In cultured skin fibroblasts from normal and homozygous familial hypercholesterolemic subjects, a water-soluble polyoxyethylated derivative of cholesterol suppresses the incorporation of [2-14C]acetate into cholesterol and decreases the activity of 3-hydroxy-3-methylglutaryl coenzyme A reductase, the rate-limiting enzyme of cholesterol synthesis. The effect of this compound on low density lipoprotein (LDL) receptor-mediated activities (binding, internalization, and degradation of LDL) and on cholesterol ester formation was compared to that of LDL and 25-hydroxycholesterol. In normal fibroblasts preincubated in lipoprotein-deficient serum, LDL or 25-hydroxycholesterol decreased cholesterol synthesis and LDL receptor activity and increased cholesterol ester formation. In contrast, polyoxyethylated cholesterol stimulated LDL receptor activity, inhibited cholesterol ester formation mediated by LDL and 25-hydroxycholesterol, and inhibited the activity of acyl-CoA:cholesterol acyltransferase in cell extracts. Polyoxyethylated cholesterol had no effect on the low level of LDL receptor activity of homozygous hypercholesterolemic fibroblasts but stimulated the half-normal activity of heterozygous cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
255
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
676-80
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Suppression of synthesis and esterification of cholesterol and stimulation of low density lipoprotein receptor activity by polyoxyethylated cholesterol in cultured human fibroblasts.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.