Browse by author
Lookup NU author(s): Professor Allan Young, Emeritus Professor Nicol Ferrier, Mohamed Mohiuddin, Dr Catherine Todhunter, Dr John Mansfield, Professor Mark Walker
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
There is increasing evidence that genome-wide association ( GWA) studies represent a powerful approach to the identification of genes involved in common human diseases. We describe a joint GWA study ( using the Affymetrix GeneChip 500K Mapping Array Set) undertaken in the British population, which has examined similar to 2,000 individuals for each of 7 major diseases and a shared set of similar to 3,000 controls. Case-control comparisons identified 24 independent association signals at P < 5 X 10(-7): 1 in bipolar disorder, 1 in coronary artery disease, 9 in Crohn's disease, 3 in rheumatoid arthritis, 7 in type 1 diabetes and 3 in type 2 diabetes. On the basis of prior findings and replication studies thus-far completed, almost all of these signals reflect genuine susceptibility effects. We observed association at many previously identified loci, and found compelling evidence that some loci confer risk for more than one of the diseases studied. Across all diseases, we identified a large number of further signals ( including 58 loci with single-point P values between 10(-5) and 5 X 10(-7)) likely to yield additional susceptibility loci. The importance of appropriately large samples was confirmed by the modest effect sizes observed at most loci identified. This study thus represents a thorough validation of the GWA approach. It has also demonstrated that careful use of a shared control group represents a safe and effective approach to GWA analyses of multiple disease phenotypes; has generated a genome-wide genotype database for future studies of common diseases in the British population; and shown that, provided individuals with non-European ancestry are excluded, the extent of population stratification in the British population is generally modest. Our findings offer new avenues for exploring the pathophysiology of these important disorders. We anticipate that our data, results and software, which will be widely available to other investigators, will provide a powerful resource for human genetics research.
Author(s): Young AH, Ferrier IN, Ball SG, Mohiuddin MK, Todhunter CE, Mansfield JC, members of the Wellcome Trust Case Control Consortium
Publication type: Article
Publication status: Published
Journal: Nature
Year: 2007
Volume: 447
Issue: 7145
Pages: 661-678
ISSN (print): 0028-0836
ISSN (electronic): 1476-4687
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/nature05911
DOI: 10.1038/nature05911
Altmetrics provided by Altmetric
