Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/733
Type: Artigo de periódico
Title: Matrix metalloproteinase 9 gene haplotypes affect left ventricular hypertrophy in hypertensive patients
Author: LACCHINI, Riccardo
JACOB-FERREIRA, Anna L. B.
LUIZON, Marcelo R.
COELI, Fernanda B.
IZIDORO-TOLEDO, Tatiane C.
GASPARINI, Sandra
FERREIRA-SAE, Maria C.
SCHREIBER, Roberto
NADRUZ JR., Wilson
TANUS-SANTOS, Jose E.
Abstract: Background: Matrix metalloproteinases (MMPs) are involved in cardiac remodeling and are encoded by genes showing genetic polymorphisms that have functional implications. We examined whether MMP-9 genetic polymorphisms are associated with hypertension and with left ventricular (LV) remodeling in hypertensive patients. Methods: We studied 173 hypertensive patients and 137 age, race and gender matched healthy controls. Heart echocardiography was performed in all patients and the following MMP-9 genetic polymorphisms were analyzed: C-(1562)T (rs3918242). -90 (CA)(14-24) (rs2234681) and Q279R (rs17576). Haplo.stats analysis was used to assess whether MMP-9 haplotypes are associated with hypertension. Linear regression analysis was performed to assess whether MMP-9 haplotypes affect LV mass index (LVMI) and other echocardiography parameters. Results: MMP-9 90 (CA)14-24 ""HH"" genotype (H allele defined by number of CA repeats >= 21) was associated with hypertension (P = 0.0085; OR = 2.321, 95% confidence interval = 1.250 to 4.309). While one MMP-9 haplotype (""C. H, Q"") protects against LVMI and end-diastolic diameter increases due to remodeling (P = 0.0490 and P = 0.0367), another MMP-9 haplotype apparently has detrimental effects over both parameters in hypertensive patients (""T, H. Q"", P = 0.0015 and P = 0.0057. respectively). Conclusion: Genetic polymorphisms in MMP-9 gene may modify the susceptibility of hypertensive patients to LV remodeling. Further studies are necessary to examine whether these polymorphisms affect clinical events in hypertensive patients. (C) 2010 Elsevier B.V. All rights reserved.
Subject: Left ventricular hypertrophy
MMP-9 polymorphisms
Heart remodeling
MMP-9 haplotypes
Country: Holanda
Editor: ELSEVIER SCIENCE BV
Rights: fechado
Identifier DOI: 10.1016/j.cca.2010.08.008
Address: http://dx.doi.org/10.1016/j.cca.2010.08.008
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Date Issue: 2010
Appears in Collections:FCM - Artigos e Materiais de Revistas Científicas

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