Document Detail


Association between the APOA2 promoter polymorphism and body weight in Mediterranean and Asian populations: replication of a gene-saturated fat interaction.
MedLine Citation:
PMID:  20975728     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The APOA2 gene has been associated with obesity and insulin resistance (IR) in animal and human studies with controversial results. We have reported an APOA2-saturated fat interaction determining body mass index (BMI) and obesity in American populations. This work aims to extend our findings to European and Asian populations.
METHODS: Cross-sectional study in 4602 subjects from two independent populations: a high-cardiovascular risk Mediterranean population (n = 907 men and women; aged 67 ± 6 years) and a multiethnic Asian population (n = 2506 Chinese, n = 605 Malays and n = 494 Asian Indians; aged 39 ± 12 years) participating in a Singapore National Health Survey. Anthropometric, clinical, biochemical, lifestyle and dietary variables were determined. Homeostasis model assessment of insulin resistance was used in Asians. We analyzed gene-diet interactions between the APOA2 -265T>C polymorphism and saturated fat intake (<or ≥ 22 g per day) on anthropometric measures and IR.
RESULTS: Frequency of CC (homozygous for the minor allele) subjects differed among populations (1-15%). We confirmed a recessive effect of the APOA2 polymorphism and replicated the APOA2-saturated fat interaction on body weight. In Mediterranean individuals, the CC genotype was associated with a 6.8% greater BMI in those consuming a high (P = 0.018), but not a low (P = 0.316) saturated fat diet. Likewise, the CC genotype was significantly associated with higher obesity prevalence in Chinese and Asian Indians only, with a high-saturated fat intake (P = 0.036). We also found a significant APOA2-saturated fat interaction in determining IR in Chinese and Asian Indians (P = 0.026).
CONCLUSION: The influence of the APOA2 -265T>C polymorphism on body-weight-related measures was modulated by saturated fat in Mediterranean and Asian populations.
Authors:
D Corella; E S Tai; J V Sorlí; S K Chew; O Coltell; M Sotos-Prieto; A García-Rios; R Estruch; J M Ordovas
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-10-26
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  35     ISSN:  1476-5497     ISO Abbreviation:  Int J Obes (Lond)     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-05-10     Completed Date:  2011-08-10     Revised Date:  2011-11-01    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  666-75     Citation Subset:  IM    
Affiliation:
Nutrition and Genomics Laboratory, JM-USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111-1524, USA.
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MeSH Terms
Descriptor/Qualifier:
Aged
Alleles
Apolipoprotein A-II / genetics*
Asian Continental Ancestry Group / ethnology,  genetics*
Body Mass Index
Body Weight / ethnology,  genetics*
Cardiovascular Diseases / epidemiology,  ethnology,  genetics*
Cross-Sectional Studies
Dietary Fats / adverse effects
European Continental Ancestry Group / ethnology,  genetics*
Female
Genetic Predisposition to Disease
Genotype
Humans
Insulin Resistance / ethnology,  genetics
Male
Obesity / epidemiology,  ethnology,  genetics*
Polymorphism, Single Nucleotide
Grant Support
ID/Acronym/Agency:
DK075030/DK/NIDDK NIH HHS; HL-54776/HL/NHLBI NIH HHS; R01 DK075030-03/DK/NIDDK NIH HHS; R01 HL054776-13/HL/NHLBI NIH HHS; U 01 HL72524/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/APOA2 protein, human; 0/Apolipoprotein A-II; 0/Dietary Fats

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