TIMP-2 gene polymorphism is associated with intracerebral hemorrhage

BACKGROUND: Both ischemic stroke and intracerebral hemorrhage are associated with altered expression and activation of matrix metalloproteinases (MMPs). Particularly relevant are MMP-2 and MMP-9. This proteolytic effect is dampened by tissue inhibitors of metalloproteinases (TIMPs). TIMP-2 is an imp...

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Hauptverfasser: Reuter, Björn (VerfasserIn) , Bugert, Peter (VerfasserIn) , Stroick, Mark Gregor (VerfasserIn) , Bukow, Simone (VerfasserIn) , Griebe, Martin (VerfasserIn) , Hennerici, Michael G. (VerfasserIn) , Fatar, Marc (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: October 16, 2009
In: Cerebrovascular diseases
Year: 2009, Jahrgang: 28, Heft: 6, Pages: 558-563
ISSN:1421-9786
DOI:10.1159/000247599
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1159/000247599
Volltext
Verfasserangaben:Bjoern Reuter, Peter Bugert, Mark Stroick, Simone Bukow, Martin Griebe, Michael G. Hennerici, Marc Fatar

MARC

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520 |a BACKGROUND: Both ischemic stroke and intracerebral hemorrhage are associated with altered expression and activation of matrix metalloproteinases (MMPs). Particularly relevant are MMP-2 and MMP-9. This proteolytic effect is dampened by tissue inhibitors of metalloproteinases (TIMPs). TIMP-2 is an important endogenous inhibitor of MMP-2. Alterations in the TIMP-2 gene expression may contribute to the incidence of ischemic stroke and intracerebral hemorrhage. - METHODS: TIMP-2 gene SNP -261G/A was genotyped from sequentially recruited stroke patients (n = 356, f/m 151/205, mean age 68.2 years, range 19-100 years) and gender and age matched controls (n = 253, f/m 114/139, mean age 68.5 years, range 32-92 years). The SNP -261G/A was detected after gene sequencing of 95 patients and controls. Furthermore, in a subgroup of 93 patients the serum levels of TIMP-2 were measured during the first 7 days after stroke onset and compared to the genotype. - RESULTS: SNP -261G/A in the TIMP-2 gene shows an allele frequency of approximately 39.14%. Homozygosity for allele A is associated significantly with the development of ICH (p = 0.025, OR = 2.020, CI = 1.115-3.661) as compared to heterozygosity and homozygosity for allele G (recessive genotypic model). Concordantly, the serum levels of TIMP-2 showed a nonsignificant decreases, depending on the genotype (p = 0.111). - CONCLUSION: We investigated a SNP 261 base pairs upstream of the start codon in exon 1 of TIMP-2. Our data suggest that carriers of homozygosity for allele A are at increased risk of developing intracerebral hemorrhage. 
650 4 |a Adult 
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650 4 |a Case-Control Studies 
650 4 |a Cerebral Hemorrhage 
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650 4 |a Gene Frequency 
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