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Early measurements ...
Early measurements of plasma matrix metalloproteinase-2 predict infarct size and ventricular dysfunction in ST-elevation myocardial infarction
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- Nilsson, Lennart (author)
- Östergötlands Läns Landsting,Linköpings universitet,Kardiologi,Hälsouniversitetet,Kardiologiska kliniken US
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- Hallen, Jonas (author)
- Oslo University Hospital Ulleval
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- Atar, Dan (author)
- Oslo University Hospital Ulleval
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- Jonasson, Lena (author)
- Östergötlands Läns Landsting,Linköpings universitet,Kardiologi,Hälsouniversitetet,Kardiologiska kliniken US
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- Swahn, Eva (author)
- Östergötlands Läns Landsting,Linköpings universitet,Kardiologi,Hälsouniversitetet,Kardiologiska kliniken US
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(creator_code:org_t)
- 2011-07-04
- 2012
- English.
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In: Heart. - : BMJ Publishing Group. - 1355-6037 .- 1468-201X. ; 98:1, s. 31-36
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Background Immediate reopening of the acutely occluded infarct-related artery via primary PCI is the preferred treatment in ST-elevation myocardial infarction (STEMI). However, the sudden reinitiation of blood flow can lead to a local acute inflammatory response with further endothelial and myocardial damage, so-called reperfusion injury. The activation of matrix metalloproteinases (MMPs) is suggested to be a key event in this process. Objectives To investigate circulating MMPs, tissue inhibitors of metalloproteinases (TIMPs) and myeloperoxidase (MPO) in relation to infarct size, left ventricular dysfunction and remodelling in a STEMI population undergoing PCI. Methods 58 Patients with STEMI undergoing primary PCI were included. Blood samples were collected at baseline before PCI and at 12, 24 and 48 h for later analysis of MMPs, TIMPs and MPO by ELISA. Infarct size, left ventricular (LV) dysfunction and remodelling were assessed by cardiac MRI at 5 days and 4 month after STEMI. Results Plasma MMP-2 at 0 and 12 h showed a consistent and significant correlation with infarct size and LV dysfunction measured both at 5 days and at 4 months and correlated well with troponin I measurements. For TIMP-1 and TIMP-2 some support was found for associations with infarct size and LV dysfunction, but these were not as consistent as for MMP-2. MMP-8, MMP-9 and MPO did not overall correlate with measures of infarct size, LV dysfunction or remodelling. Conclusions In patients with STEMI, circulating levels of MMP-2, measured early and even before reperfusion therapy, are strongly associated with infarct size and LV dysfunction. This provides further evidence for the role of MMP-2 in ischaemia-reperfusion injury.
Keyword
- MEDICINE
- MEDICIN
Publication and Content Type
- ref (subject category)
- art (subject category)
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