期刊
ENDOCRINE JOURNAL
卷 57, 期 4, 页码 293-301出版社
JAPAN ENDOCRINE SOC
DOI: 10.1507/endocrj.K09E-305
关键词
FTO gene polymorphism; Gene environmental interaction; Physical activity; Nutritional intake; Population-based study
资金
- Japan Society for the Promotion of Science, Japan [F03]
- Grants-in-Aid for Scientific Research [20590595] Funding Source: KAKEN
The association of the FTO gene polymorphism, rs9939609, with obesity was examined using the population of the Takahata study (n (M/F): 2,639 (1,168 / 1,470); age: 63.0 +/- 10.2 years), a Japanese community-based study. The effects of lifestyle related factors, including nutritional intake and physical activities, on the association were also examined. Body mass index (BMI) was significantly associated with the FTO gene polymorphism (p<0.001). A case-control association study of the FTO gene polymorphism with obesity using multiple logistic regression analysis showed a significant association of the genotype AA (odds ratio, 1.53 [95% confidential interval, 1.04-2.24]) after adjustment for age and gender. Analysis to examine the differences in lifestyle-related factors among the genotype groups showed a significant difference in the energy expenditure for moderate to high-intensity physical activity (PA) (>= 3.0 METs) (p=0.012) with a significant decrease toward the genotype AA (p=0.027). The effect of energy expenditure for moderate to high-intensity PA on the association of the polymorphism with obesity was then examined using study groups stratified based on the energy expenditure for moderate to high-intensity PA (Low-PA and High-PA). The BMI was significantly higher in the genotype AA in the Low-PA group (p=0.016) but not in the High-PA group (p=0.103). Furthermore, the genotype AA was significantly associated with obesity (odds ratio, 2.39 [95% confidential interval, 1.19-4.80]) in the Low-PA group but not in the High-PA group (p=0.650). The FTO gene, rs9939609, was associated with obesity, and the association was evident in subjects with low-PA, suggesting a PA-dependent association.
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