Document Detail


Sex-specific association of fatty acid binding protein 2 and microsomal triacylglycerol transfer protein variants with response to dietary lipid changes in the 3-mo Medi-RIVAGE primary intervention study.
MedLine Citation:
PMID:  18065580     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The dietary guidelines targeted at reducing cardiovascular risk lead to largely heterogeneous responses in which genetic determinants are largely involved. OBJECTIVES: We evaluated the effect of fatty acid binding protein 2 (FABP2) Ala54Thr and microsomal triacylglycerol transfer protein (MTTP) -493G/T allelic variations on plasma lipid markers, at baseline and on the response to the 3-mo Medi-RIVAGE primary prevention study. DESIGN: Subjects with moderate cardiovascular disease risk (n = 169) were advised to reduce total and saturated dietary fats and to increase intake of monounsaturated and polyunsaturated fats. They were genotyped for FABP2 Ala54Thr and MTTP -493G/T allelic variations, and plasma was processed for cardiovascular risk marker analyses. RESULTS: At baseline, men and women homozygous for Thr54 presented a significant opposite profile for plasma oleic acid (18:1), triacylglycerol-rich lipoprotein (TRL) cholesterol, and TRL phospholipids. In addition, all Thr/Thr men presented higher 18:1 values than did women. For the MTTP -493G/T polymorphism, although all TT subjects presented high apolipoprotein B-48, a genotype x sex interaction was present for palmitic acid, linolenic acid, eicosatrienoic acid, and insulin. The prudent diet clearly improved plasma lipid markers. FABP2 genotype did not interact much with the amplitude of the response. However, for MTTP polymorphism, men homozygous for the T allele displayed a significantly more pronounced response than did men carrying the G allele, which is particularly evident by their larger decrease in the Framingham score. CONCLUSIONS: These 2 polymorphic loci are thus differently associated with the baseline lipid markers as well as with the response to nutritional recommendations, but both presented a marked sex-specific profile, with the response to diet being particularly efficient in men homozygous for the MTTP -493T allele.
Authors:
Marguerite Gastaldi; Sophie Dizière; Catherine Defoort; Henri Portugal; Denis Lairon; Michel Darmon; Richard Planells
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  86     ISSN:  0002-9165     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-12-10     Completed Date:  2008-01-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1633-41     Citation Subset:  AIM; IM    
Affiliation:
Institut National de la Santé et de la Recherche Medicale, UMR 1260, Marseille, France. marguerite.gastaldi@medecine.univ-mrs.fr
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MeSH Terms
Descriptor/Qualifier:
Cardiovascular Diseases / blood,  genetics*,  prevention & control
Carrier Proteins / genetics,  metabolism*
DNA / chemistry,  genetics
Dietary Fats / administration & dosage*,  metabolism
Fatty Acid-Binding Proteins / genetics,  metabolism*
Female
Genotype
Humans
Male
Polymerase Chain Reaction
Polymorphism, Single Nucleotide
Sex Factors
Chemical
Reg. No./Substance:
0/Carrier Proteins; 0/Dietary Fats; 0/FABP2 protein, human; 0/Fatty Acid-Binding Proteins; 0/microsomal triglyceride transfer protein; 9007-49-2/DNA

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