Migraine with Aura Susceptibility Locus on Chromosome 19p13 Is Distinct from the Familial Hemiplegic Migraine Locus |
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Authors: | Keith W. Jones Margaret G. Ehm Margaret A. Pericak-Vance Jonathan L. Haines Peter R. Boyd Stephen J. Peroutka |
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Affiliation: | Affymetrix, Inc., 3380 Central Expressway, Santa Clara, California 95051, USA. keith_jones@affymetrix.com |
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Abstract: | Migraine is a common neurological disease with a major genetic component. Recently, it has been proposed that a single locus on chromosome 19p13 contributes to the genetic susceptibility of both rare familial hemiplegic migraine (FHM) and more common types of migraine, migraine with aura and migraine without aura. We analyzed 16 families for co-segregation of migraine with aura and chromosome 19p13 markers. Using multipoint model-free linkage analysis, we obtained a lod score of 4.28 near D19S592. Using an affecteds-only model of linkage, we observed a lod score of 4.79 near D19S592. We were able to provide statistical evidence that this locus on chromosome 19p13 is most likely not the gene CACNA1A, mutations in which cause FHM. These data indicate that chromosome 19p13 contains a locus which contributes to the genetic susceptibility of migraine with aura that is distinct from the FHM locus. |
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Keywords: | Abbreviations: migraineAbbreviations: migraine with auraAbbreviations: familial hemiplegic migraineAbbreviations: genetic linkageAbbreviations: chromosome 19 |
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