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TY - JOUR AU - Emilsson, Valur AU - Thorleifsson, Gudmar AU - Zhang, Bin AU - Leonardson, Amy S. AU - Zink, Florian AU - Zhu, Jun AU - Carlson, Sonia AU - Helgason, Agnar AU - Walters, G. Bragi AU - Gunnarsdottir, Steinunn AU - Mouy, Magali AU - Steinthorsdottir, Valgerdur AU - Eiriksdottir, Gudrun H. AU - Bjornsdottir, Gyda AU - Reynisdottir, Inga AU - Gudbjartsson, Daniel AU - Helgadottir, Anna AU - Jonasdottir, Aslaug AU - Jonasdottir, Adalbjorg AU - Styrkarsdottir, Unnur AU - Gretarsdottir, Solveig AU - Magnusson, Kristinn P. AU - Stefansson, Hreinn AU - Fossdal, Ragnheidur AU - Kristjansson, Kristleifur AU - Gislason, Hjortur G. AU - Stefansson, Tryggvi AU - Leifsson, Bjorn G. AU - Thorsteinsdottir, Unnur AU - Lamb, John R. AU - Gulcher, Jeffrey R. AU - Reitman, Marc L. AU - Kong, Augustine AU - Schadt, Eric E. AU - Stefansson, Kari PY - 2008 DA - 2008/03/01 TI - Genetics of gene expression and its effect on disease JO - Nature SP - 423 EP - 428 VL - 452 IS - 7186 AB - Common human diseases result from the interplay of many genes and environmental factors. Therefore, a more integrative biology approach is needed to unravel the complexity and causes of such diseases. To elucidate the complexity of common human diseases such as obesity, we have analysed the expression of 23,720 transcripts in large population-based blood and adipose tissue cohorts comprehensively assessed for various phenotypes, including traits related to clinical obesity. In contrast to the blood expression profiles, we observed a marked correlation between gene expression in adipose tissue and obesity-related traits. Genome-wide linkage and association mapping revealed a highly significant genetic component to gene expression traits, including a strong genetic effect of proximal (cis) signals, with 50% of the cis signals overlapping between the two tissues profiled. Here we demonstrate an extensive transcriptional network constructed from the human adipose data that exhibits significant overlap with similar network modules constructed from mouse adipose data. A core network module in humans and mice was identified that is enriched for genes involved in the inflammatory and immune response and has been found to be causally associated to obesity-related traits. SN - 1476-4687 UR - https://doi.org/10.1038/nature06758 DO - 10.1038/nature06758 ID - Emilsson2008 ER -