Document Detail


Interaction between a common variant of the cholesteryl ester transfer protein gene and the apolipoprotein E polymorphism: effects on plasma lipids and lipoproteins in a cohort of 7-year-old children.
MedLine Citation:
PMID:  12669678     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND AIM: Common variations in genes, such as apolipoprotein E (apo E) and cholesteryl ester transfer protein (CETP), are major determinants of plasma lipid and lipoprotein levels. As both apo E and CETP contribute to the reverse transport of cholesterol to the liver, the effects of variations at the CETP locus may very well interact with the apo E genotype. METHODS AND RESULTS: As part of an ongoing study, the combined effects of the apo E genotype and heterogeneity at the CETP gene locus on plasma lipids and lipoproteins were studied in a birth cohort sample of 257 Dutch prepubescent boys and girls (aged 6.7-8.1 years). The children with an apo E2E3 genotype (carrying the epsilon 2 allele; arg158-->cys) had lower concentrations of low-density lipoprotein cholesterol (LDL-C) and apolipoprotein B (apo B) than those with an apo E4E3 (carrying the epsilon 4 allele; cys112-->arg) or apo E3E3 genotype (homozygous for the parent epsilon 3 allele). These associations were statistically significant in children who were homozygous (p = 0.004 for LDL; p = 0.002 for apo B) or heterozygous (p < 0.0001 for LDL and apo B) for the absence of the Taq-IB polymorphism at the CETP gene locus (B2 allele), but not in those homozygous for the presence of this variant (B1B1). The highest plasma high-density lipoprotein cholesterol (HDL-C) concentrations were observed in children with the CETP B2B2 genotype. The difference in HDL-C levels between the CETP genotype groups was statistically significant only in E2E3 carriers (p = 0.01). The LDL/HDL ratio was significantly lower in E2E3 carriers, but not when combined with a CETP B1B1 genotype. CONCLUSION: These findings indicate that the apo E genotype and heterogeneity at the CETP gene locus have an additive and interactive influence on plasma lipid and lipoprotein levels in children.
Authors:
P Rump; R P Mensink; G Hornstra
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Nutrition, metabolism, and cardiovascular diseases : NMCD     Volume:  12     ISSN:  0939-4753     ISO Abbreviation:  Nutr Metab Cardiovasc Dis     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2003-04-02     Completed Date:  2003-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9111474     Medline TA:  Nutr Metab Cardiovasc Dis     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  317-24     Citation Subset:  IM    
Affiliation:
Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Department of Human Biology, Maastricht University, Maastricht, The Netherlands. p.rump@medgen.azg.nl
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MeSH Terms
Descriptor/Qualifier:
Analysis of Variance
Apolipoproteins E / genetics*
Carrier Proteins / genetics*
Child
Cholesterol Ester Transfer Proteins
Cholesterol, HDL / genetics,  metabolism*
Cholesterol, LDL / genetics,  metabolism*
Cohort Studies
Coronary Disease / epidemiology,  genetics*
Female
Genetic Predisposition to Disease*
Genotype
Glycoproteins*
Humans
Hyperlipidemias / epidemiology,  genetics*
Incidence
Male
Netherlands / epidemiology
Polymorphism, Genetic*
Probability
Risk Assessment
Sensitivity and Specificity
Sex Distribution
Chemical
Reg. No./Substance:
0/Apolipoproteins E; 0/CETP protein, human; 0/Carrier Proteins; 0/Cholesterol Ester Transfer Proteins; 0/Cholesterol, HDL; 0/Cholesterol, LDL; 0/Glycoproteins

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