Clinical Chemistry and Laboratory Medicine (CCLM)
Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)
Editor-in-Chief: Plebani, Mario
Ed. by Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Payne, Deborah A. / Schlattmann, Peter / Tate, Jillian R.
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Two MMP-2 Promoter Polymorphisms (–790T/G and –735C/T) in Chronic Heart Failure
Remodelling of extracellular matrix by activated matrix metalloproteinases is considered to contribute to progression of ventricle remodelling during chronic heart failure. The aim of this study was to associate two promoter polymorphisms, -790T/G and -735C/T, in the gene for matrix metalloproteinase (MMP)-2 (gelatinase A) with chronic heart failure (CHF). For this purpose, 164 patients (124 men, 40 women, median age 56 years, range 21-91 years) with CHF (functional class NYHA II-IV, ejection fraction median 25%, cardiothoracic index more than 50%) were compared with 196 control subjects without clinical signs of cardiovascular disease (131 men and 65 women, median age 56 years, range 27-84 years) in -790T/G and -735C/T MMP-2 genotype distributions and allelic frequencies. The genotypes were determined by polymerase chain reaction (PCR) with restriction analyses. A significant increase of the T allele of the -790T/G MMP-2 polymorphism (p = 0.04), as well as of the C allele of the -735C/T MMP-2 gene polymorphism, in patients with CHF was proven (p = 0.04). The heterozygote CT of the 735C/T MMP-2 polymorphism exhibits a 7 times higher odds ratio (OR) for the CHF patients with lower levels of total cholesterol (less than 5 mmol/l), especially for nonhypertensive CHF men (OR = 7.28, 95% confidence interval 1.51-35.03, p = 0.006). Determination of MMP polymorphisms in the regulatory area of the gene could help us to comprehend individual susceptibility of patients with CHF to MMP inhibitors based on known risks of MMP genotypes. Clin Chem Lab Med 2003; 41(10):12991303
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