Genetic susceptibility to type 2 diabetes and obesity: from genome-wide association studies to rare variants and beyond.

Autor: Grarup, Niels, Sandholt, Camilla, Hansen, Torben, Pedersen, Oluf
Zdroj: Diabetologia; Aug2014, Vol. 57 Issue 8, p1528-1541, 14p, 2 Diagrams, 2 Graphs
Abstrakt: During the past 7 years, genome-wide association studies have shed light on the contribution of common genomic variants to the genetic architecture of type 2 diabetes, obesity and related intermediate phenotypes. The discoveries have firmly established more than 175 genomic loci associated with these phenotypes. Despite the tight correlation between type 2 diabetes and obesity, these conditions do not appear to share a common genetic background, since they have few genetic risk loci in common. The recent genetic discoveries do however highlight specific details of the interplay between the pathogenesis of type 2 diabetes, insulin resistance and obesity. The focus is currently shifting towards investigations of data from targeted array-based genotyping and exome and genome sequencing to study the individual and combined effect of low-frequency and rare variants in metabolic disease. Here we review recent progress as regards the concepts, methodologies and derived outcomes of studies of the genetics of type 2 diabetes and obesity, and discuss avenues to be investigated in the future within this research field. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index