A typical migraine susceptibility region localizes to chromosome 1q31

Lea, Rod A., Shepherd, Graeme, Curtain, Robert, Nyholt, D.R., Quinlan, Sharon, Brimage, Peter, & Griffiths, Lyn R. (2002) A typical migraine susceptibility region localizes to chromosome 1q31. Neurogenetics, 4(1), pp. 17-22.

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Migraine (with and without aura) is a prevalent neurovascular disease that shows strong familial aggregation, although the number of genes involved and the mode of inheritance is not clear. Some insight into the disease has been gained from genetic studies into a rare and very severe migraine subtype known as familial hemiplegic migraine (FHM). In this study, we took a family-based linkage and association approach to investigate the FHM susceptibility region on chromosome 1q31 for involvement in typical migraine susceptibility in affected Australian pedigrees. Initial multipoint ALLEGRO analysis provided strong evidence for linkage of Chrlq31 markers to typical migraine in a large multigenerational pedigree. The 1-LOD* unit support interval for suggestive linkage spanned approximately 18 cM with a maximum allele sharing LOD* score of 3.36 obtained for marker D1S2782 (P=0.00004). Subsequent analysis of an independent sample of 82 affected pedigrees added support to the initial findings with a maximum LOD* of 1.24 (P=0.008). Utilising the independent sample of 82 pedigrees, we also performed a family-based association test. Results of this analysis indicated distortion of allele transmission at marker D1S249 [global chi2 (5) of 15.00, P=0.010] in these pedigrees. These positive linkage and association results will need further confirmation by independent researchers. However, overall they provide good evidence for the existence of a typical migraine locus near these markers on Chrlq3l, and reinforce the idea that an FHM gene in this genomic region may also contribute to susceptibility to the more common forms of migraine.

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47 citations in Web of Science®
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ID Code: 62777
Item Type: Journal Article
Refereed: Yes
DOI: 10.1007/s10048-001-0125-1
ISSN: 1364-6745
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2002 Springer Verlag
Deposited On: 23 Sep 2013 01:49
Last Modified: 27 Jan 2016 06:28

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