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Type: Artigo de periódico
Title: Matrix metalloproteinase (MMP)-2 gene polymorphisms affect circulating MMP-2 levels in patients with migraine with aura
Author: Goncalves, FM
Martins-Oliveira, A
Lacchini, R
Belo, VA
Speciali, JG
Dach, F
Tanus-Santos, JE
Abstract: Matrix metalloproteinases (MMP) are involved in the disruption of blood-brain barrier (BBB) during migraine attacks. In the present study, we hypothesized that two functional polymorphisms (C-1306T and C-735T) in MMP-2 gene and MMP-2 haplotypes are associated with migraine and modify MMP-2 and tissue inhibitor of MMP (TIMP)-2 levels in migraine. Genotypes for MMP-2 polymorphisms were determined by real time-PCR using Taqman allele discrimination assays. Haplotypes were inferred using the PHASE program. Plasma MMP-2 and TIMP-2 concentrations were measured by gelatin zymography and ELISA, respectively, in 148 healthy women without history of migraine and in 204 women with migraine (153 without aura; MWA, and 51 with aura; MA). Patients with MA had higher plasma MMP-2 concentrations and MMP-2/TIMP-2 ratios than patients with MWA and controls (P<0.05). While MMP-2 genotype and haplotype distributions for the polymorphisms were similar among the groups (P>0.05), we found that the CC genotype for C-735T polymorphism and the CC haplotype were associated with higher plasma MMP-2 concentrations in MA group (P<0.05). Our findings may help to understand the role of MMP-2 and its genetic variants in the pathophysiology of migraine and to identify a particular group of migraine patients with increased MMP-2 levels that would benefit from the use of MMP inhibitors. (C) 2012 Elsevier B.V. All rights reserved.
Subject: Migraine
Matrix metalloproteinase-2
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.gene.2012.09.109
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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