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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1988-4-12
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pubmed:abstractText |
Cholesterol synthesis, esterification and efflux were investigated in cultured fibroblasts from patients with Niemann-Pick disease type C. Sterol synthesis from sodium acetate was markedly increased in the two Niemann-Pick disease type C strains as compared to controls, either in the presence or absence of exogenous cholesterol supply by low-density lipoproteins. By contrast, cholesterol esterification was about 2-3-fold reduced when measured by oleic acid incorporation into cholesteryl esters and 10-15-fold reduced when measured with labelled free cholesterol as precursor, although acylcoenzyme-A:cholesterol acyltransferase activity was normal when studied in vitro on cell homogenates. Chase experiments with 14C-cholesterol demonstrated that the rate of cholesterol efflux was decreased by about 3-4-fold in fibroblasts from patients with Niemann-Pick disease type C. These results provide further evidence for alterations of sterol metabolism in Niemann-Pick disease type C and support the hypothesis of a trapping of exogenous cholesterol, which cannot enter the regulatory intracellular pools.
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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:issn |
0141-8955
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
339-46
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pubmed:dateRevised |
2007-3-21
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pubmed:meshHeading |
pubmed-meshheading:3126354-Autoradiography,
pubmed-meshheading:3126354-Cells, Cultured,
pubmed-meshheading:3126354-Child, Preschool,
pubmed-meshheading:3126354-Cholesterol,
pubmed-meshheading:3126354-Chromatography, Thin Layer,
pubmed-meshheading:3126354-Esterification,
pubmed-meshheading:3126354-Female,
pubmed-meshheading:3126354-Fibroblasts,
pubmed-meshheading:3126354-Humans,
pubmed-meshheading:3126354-Niemann-Pick Diseases,
pubmed-meshheading:3126354-Oleic Acid,
pubmed-meshheading:3126354-Oleic Acids
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pubmed:year |
1987
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pubmed:articleTitle |
Alterations in cholesterol metabolism in cultured fibroblasts from patients with Niemann-Pick disease type C.
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pubmed:affiliation |
Laboratoire de Biochimie, CNRS UA 524, Faculté de Médecine Saint-Antoine, Paris, France.
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pubmed:publicationType |
Journal Article
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