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SNP variants within the vanilloid TRPV1 and TRPV3 receptor genes are associated with migraine in the Spanish population
Author(s) -
Carreño Oriel,
Corominas Roser,
FernándezMorales Jessica,
Camiña Montserrat,
Sobrido MaríaJesús,
FernándezFernández José Manuel,
PozoRosich Patricia,
Cormand Bru,
Macaya Alfons
Publication year - 2012
Publication title -
american journal of medical genetics part b: neuropsychiatric genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.393
H-Index - 126
eISSN - 1552-485X
pISSN - 1552-4841
DOI - 10.1002/ajmg.b.32007
Subject(s) - trpv1 , snp , migraine , genetics , gene , population , medicine , biology , receptor , single nucleotide polymorphism , transient receptor potential channel , genotype , environmental health
The transient receptor potential (TRP) superfamily of non‐selective cationic channels are involved in several processes plausibly relevant to migraine pathophysiology, including multimodal sensory and pain perception, central and peripheral sensitization, and regulation of calcium homeostasis. With the aim of identifying single nucleotide polymorphisms (SNPs) in TRP genes that may confer increased genetic susceptibility to migraine, we carried out a case–control genetic association study with replication, including a total of 1,040 cases and 1,037 controls. We genotyped 149 SNPs covering 14 TRP genes with known brain expression. The two‐stage study comprised samples of 555 and 485 Spanish, Caucasian patients, selected according to the ICHD‐II criteria for the diagnosis of migraine without aura (MO) or migraine with aura (MA). In the discovery sample, 19 SNPs in ten TRP genes showed nominal association ( P < 0.05) with MO, MA, or overall migraine. In the replication sample, nominal association was confirmed for TRPV3 rs7217270 in MA and TRPV1 rs222741 in the overall migraine group. Risk haplotypes were identified for seven of the genes showing nominal association in the discovery set, but none of them was replicated. The present findings suggest that members of the vanilloid TRPV subfamily of receptors contribute to the genetic susceptibility to migraine in the Spanish population. © 2011 Wiley Periodicals, Inc.