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Title: Birth Weight, Genetic Susceptibility, and Adulthood Risk of Type 2 Diabetes
Authors: Li, Yanping;Qi, Qibin;Workalemahu, Tsegaselassie;Hu, Frank B.;Qi, Lu
subject: Clinical Care/Education/Nutrition/Psychosocial Research
Year: 2012
Publisher: American Diabetes Association
Description: OBJECTIVE Both stressful intrauterine milieus and genetic susceptibility have been linked to later-life diabetes risk. The current study aims to examine the interaction between low birth weight, a surrogate measure of stressful intrauterine milieus, and genetic susceptibility in relation to risk of type 2 diabetes in adulthood. RESEARCH DESIGN AND METHODS The analysis included two independent, nested case-control studies of 2,591 type 2 diabetic case subjects and 3,052 healthy control subjects. We developed two genotype scores: an obesity genotype score based on 32 BMI-predisposing variants and a diabetes genotype score based on 35 diabetes-predisposing variants. RESULTS Obesity genotype scores showed a stronger association with type 2 diabetes risk in individuals with low birth weight. In low–birth weight individuals, the multivariable-adjusted odds ratio (OR) was 2.55 (95% CI 1.34–4.84) by comparing extreme quartiles of the obesity genotype score, while the OR was 1.27 (1.04–1.55) among individuals with birth weight >2.5 kg (P for interaction = 0.017). We did not observe significant interaction between diabetes genotype scores and birth weight with regard to risk of type 2 diabetes. In a comparison of extreme quartiles of the diabetes gene score, the multivariable-adjusted OR was 3.80 (1.76–8.24) among individuals with low birth weight and 2.27 (1.82–2.83) among those with high birth weight (P for interaction = 0.16). CONCLUSIONS Our data suggest that low birth weight and genetic susceptibility to obesity may synergistically affect adulthood risk of type 2 diabetes.
Standard no: Li, Yanping, Qibin Qi, Tsegaselassie Workalemahu, Frank B. Hu, and Lu Qi. 2012. “Birth Weight, Genetic Susceptibility, and Adulthood Risk of Type 2 Diabetes.” Diabetes Care 35 (12): 2479-2484. doi:10.2337/dc12-0168.
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