The Genetic and Epigenetic Basis of Type 2 Diabetes and Obesity

被引:157
作者
Drong, A. W. [1 ]
Lindgren, C. M. [1 ]
McCarthy, M. I. [1 ,2 ,3 ]
机构
[1] Univ Oxford, Wellcome Trust Ctr Human Genet, Oxford, England
[2] Univ Oxford, Oxford Ctr Diabet Endocrinol & Metab, Oxford, England
[3] Oxford Univ Hosp Trust, Oxford NIHR Biomed Res Ctr, Oxford, England
基金
英国惠康基金;
关键词
GENOME-WIDE ASSOCIATION; BODY-MASS INDEX; LARGE-SCALE ASSOCIATION; SUSCEPTIBILITY LOCI; FTO GENE; RHEUMATOID-ARTHRITIS; MISSING HERITABILITY; TRIGLYCERIDE LEVELS; COMMON VARIANTS; HUMAN-DISEASES;
D O I
10.1038/clpt.2012.149
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Type 2 diabetes (T2D) and obesity are complex disorders that constitute major public health problems. The evidence for familial aggregation of both T2D and obesity is substantial. To date, more than 150 genetic loci are associated with the development of monogenic, syndromic, or multifactorial forms of T2D or obesity. However, the proportion of overall trait variance explained by these associated loci is modest (similar to 5-10% for T2D, similar to 2% for body mass index (BMI)). Some of the familial aggregation not attributable to known genetic variation, as well as many of the effects of environmental exposures, may reflect epigenetic processes. In this review, we discuss the evidence concerning the genetic contribution to individual risk of T2D and obesity, and explore the potential role of epigenetic mechanisms. We also explain how genetics, epigenetics, and environment are likely to interact to define the individual risk of disease.
引用
收藏
页码:707 / 715
页数:9
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