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  4. Central obesity in males affected by a dyslipidemia-associated genetic polymorphism on APOA1/C3/A4/A5 gene cluster
 
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Central obesity in males affected by a dyslipidemia-associated genetic polymorphism on APOA1/C3/A4/A5 gene cluster

Journal
Nutrition and Diabetes
Journal Volume
3
Journal Issue
MARCH
Date Issued
2013
Author(s)
Hsu M.-C.
Chang C.-S.
Lee K.-T.
Sun H.-Y.
Tsai Y.-S.
PO-HSIU KUO  
Young K.-C.
DOI
10.1038/nutd.2013.2
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880175725&doi=10.1038%2fnutd.2013.2&partnerID=40&md5=be93a109885746cb43af04b3f470c091
https://scholars.lib.ntu.edu.tw/handle/123456789/521091
Abstract
BACKGROUND: Central obesity is a rising epidemic, and often occurs in parallel with dyslipidemia. Furthermore, enhancement of ectopic fat deposition has been observed in both human studies and animal models of altered lipidemic control. Though APOA1/ C3/A4/A5 genetic polymorphisms are associated with dyslipidemia, their effect on central obesity is less known. METHOD: The anthropometric and metabolic parameters were taken from obese (body mass index (BMI) ?25 kgm-2) and nonobese healthy (BMI <25) Taiwanese patients at the initiation weight-loss intervention and 6 months later. The effects of APOA1/C3/ A4/A5 genetic polymorphisms were analyzed cross-sectionally and longitudinally. Gender contributions were specifically examined. PATIENTS: Three hundred and ninety-eight participants (obese n=262; non-obese healthy n=136) were recruited in total, and 130 obese patients underwent weight-loss treatments. RESULTS: APOA5 rs662799 minor allele carriage was associated with unfavorable metabolic profiles in obese but not non-obese individuals at baseline. Further analysis identified gender-genotype interactions in waist-hip ratio (WHR), and that one rs662799 minor allele increased 0.032 WHR unit in obese males as analyzed by linear regression adjusted for age, BMI and plasma triglyceride (TG) (95% confidence interval (CI)=0.014-0.050, P=0.001). The rs662799-associated WHR elevation resulted in increased frequency of central obesity (WHR ?1.0) in rs662799 carrying obese males as analyzed by binary logistic regression adjusted for age, BMI and plasma TG (odds ratio=6.52, 95% CI=1.87-22.73, P=0.003). In contrast, APOA5 rs662799 and central obesity were no longer correlated 6 months into weight-loss treatments, owing to significant WHR reductions in male rs662799 minor allele carriers (P=0.001). Meanwhile, hypertriglyceridemia was more prevalent in both male and female obese rs662799 minor allele carriers at baseline (males, P=0.034, females, P=0.007). CONCLUSION: This study highlights the gender-specific and weight-sensitive effects of APOA5 rs662799 on central obesity in Taiwanese individuals, and that these effects are dyslipidemia-independent and weight-loss responsive. ? 2013 Macmillan Publishers Limited All rights reserved.
SDGs

[SDGs]SDG3

Other Subjects
apolipoprotein A1; apolipoprotein A4; apolipoprotein A5; apolipoprotein C3; adult; age; allele; anthropometric parameters; article; body mass; controlled study; cross-sectional study; disease association; dyslipidemia; female; gender; gene cluster; gene interaction; genetic polymorphism; human; hypertriglyceridemia; longitudinal study; major clinical study; male; metabolic parameters; obesity; priority journal; sex difference; waist hip ratio; weight reduction
Type
journal article

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