Copyright © 2008 The American Society of Human Genetics. All rights reserved.
The American Journal of Human Genetics, Volume 82, Issue 5, 1051-1063, 17 April 2008

doi:10.1016/j.ajhg.2008.03.003

Article

Consistently Replicating Locus Linked to Migraine on 10q22-q23

Verneri Anttila1231314Dale R. Nyholt414Mikko Kallela5Ville Artto5Salli Vepsäläinen5Eveliina Jakkula121112Annika Wennerström12Päivi Tikka-Kleemola12Mari A. Kaunisto126Eija Hämäläinen12Elisabeth Widén2Joseph Terwilliger17Kathleen Merikangas8Grant W. Montgomery4Nicholas G. Martin4Mark Daly12Jaakko Kaprio910Leena Peltonen1111213Markus Färkkilä5Maija Wessman1236 and Aarno Palotie1231213Go To Corresponding Author 

1 Biomedicum Helsinki, Research Program in Molecular Medicine, University of Helsinki, 00290 Helsinki, Finland
2 The Finnish Genome Center, University of Helsinki, 00290 Helsinki, Finland
3 Department of Clinical Chemistry, Helsinki University Central Hospital, 00029 Helsinki, Finland
4 Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, Queensland 4029, Australia
5 Department of Neurology, Helsinki University Central Hospital, 00029 Helsinki, Finland
6 Folkhälsan Research Center, 00290 Helsinki, Finland
7 Department of Psychiatry and Columbia Genome Center, Columbia University, New York, NY 10032, USA
8 Section on Developmental Genetic Epidemiology, National Institute of Mental Health, NIH, Bethesda, MD 10032, USA
9 Department of Public Health, University of Helsinki, 00014 Helsinki, Finland
10 Department of Mental Health and Alcohol Research, National Public Health Institute, 00300 Helsinki, Finland
11 Department of Molecular Medicine, National Public Health Institute, 00290 Helsinki, Finland
12 The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
13 Wellcome Trust Sanger Institute, Cambridge CB10 1SA, UK

Corresponding author

14 These authors contributed equally to this work.


Abstract

Here, we present the results of two genome-wide scans in two diverse populations in which a consistent use of recently introduced migraine-phenotyping methods detects and replicates a locus on 10q22-q23, with an additional independent replication. No genetic variants have been convincingly established in migraine, and although several loci have been reported, none of them has been consistently replicated. We employed the three known migraine-phenotyping methods (clinical end diagnosis, latent-class analysis, and trait-component analysis) with robust multiple testing correction in a large sample set of 1675 individuals from 210 migraine families from Finland and Australia. Genome-wide multipoint linkage analysis that used the Kong and Cox exponential model in Finns detected a locus on 10q22-q23 with highly significant evidence of linkage (LOD 7.68 at 103 cM in female-specific analysis). The Australian sample showed a LOD score of 3.50 at the same locus (100 cM), as did the independent Finnish replication study (LOD score 2.41, at 102 cM). In addition, four previously reported loci on 8q21, 14q21, 18q12, and Xp21 were also replicated. A shared-segment analysis of 10q22-q23 linked Finnish families identified a 1.6-9.5 cM segment, centered on 101 cM, which shows in-family homology in 95% of affected Finns. This region was further studied with 1323 SNPs. Although no significant association was observed, four regions warranting follow-up studies were identified. These results support the use of symptomology-based phenotyping in migraine and suggest that the 10q22-q23 locus probably contains one or more migraine susceptibility variants.


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