Plasma MMP-2, MMP-9 and N-BNP in Long-Term Survivors Following Complicated Myocardial Infarction: Relation to Cardiac Magnetic Resonance Imaging Measures of Left Ventricular Structure and Function.

Plasma MMP-2, MMP-9 and N-BNP in Long-Term Survivors Following Complicated Myocardial Infarction: Relation to Cardiac Magnetic Resonance Imaging Measures of Left Ventricular Structure and Function. Research Abstract Details 

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Plasma MMP-2, MMP-9 and N-BNP in Long-Term Survivors Following Complicated Myocardial Infarction: Relation to Cardiac Magnetic Resonance Imaging Measures of Left Ventricular Structure and Function. Abstract Text:

Stein Orn,Cord Manhenke,Iain B Squire,Leong Ng,Inder Anand,Kenneth Dickstein,Stein Orn,Cord Manhenke,Iain B Squire,Leong Ng,Inder Anand,Kenneth Dickstein,Stein Orn,Cord Manhenke,Iain B Squire,Leong Ng,Inder Anand,Kenneth Dickstein,

BACKGROUND: Altered activity of the matrix metalloproteinases (MMP-2 and -9), has been implicated in the left ventricular (LV) remodeling process occurring after myocardial infarction (MI). In the acute phase, a relation between plasma MMP-9 levels and parameters of LV dysfunction has been demonstrated. The relationship in long-term survivors has not been investigated. We studied the relationships of these biochemical markers, and N-terminal pro-B-type natriuretic peptide (N-BNP), with measures of long-term LV remodeling. METHODS AND RESULTS: Plasma levels of N-BNP, MMP-2, and MMP-9 were measured at randomization, 1 month, 1 year, and >4 years after complicated AMI. Contrast-enhanced cardiac magnetic resonance (CMR) was performed at 4.4 (+/-0.4) years in 52 clinically stable long-term survivors of the index AMI. We assessed the relationships of plasma N-BNP, MMP-2, and MMP-9 with myocardial scarring, and measures of long-term LV remodeling. Compared with a reference population, N-BNP and MMP-9 levels were increased at all time points from the acute phase until >4 years after MI. Plasma N-BNP and MMP-9 correlated only in the subacute phase (randomization, mean 3.3 days after MI) days after acute MI (r = 0.38, P = .006). At CMR assessment >/=4 years, log MMP-9 level was inversely related to LV ejection fraction (P = .002) and nonscarred myocardial mass (P = .008). This relationship was independent of MMP-2. Log N-BNP was related to end diastolic volume index (P = .0002). There was no correlation between log MMP-9 and LV volumes. CONCLUSION: There is a time-dependent relationship between plasma N-BNP and MMP-9 levels, these peptides correlating only in the acute phase after MI. In long-term follow-up, plasma MMP-9 and N-BNP levels were related to different parameters of LV remodeling. These findings suggest that in long-term survivors of complicated MI, different mechanisms modulate plasma levels of MMP-9 and N-BNP.

Plasma MMP-2, MMP-9 and N-BNP in Long-Term Survivors Following Complicated Myocardial Infarction: Relation to Cardiac Magnetic Resonance Imaging Measures of Left Ventricular Structure and Function. Publishing Authors By Initials

S Orn,C Manhenke,IB Squire,L Ng,I Anand,K Dickstein,S Orn,C Manhenke,IB Squire,L Ng,I Anand,K Dickstein,S Orn,C Manhenke,IB Squire,L Ng,I Anand,K Dickstein,

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Plasma MMP-2, MMP-9 and N-BNP in Long-Term Survivors Following Complicated Myocardial Infarction: Relation to Cardiac Magnetic Resonance Imaging Measures of Left Ventricular Structure and Function. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of cardiac failure

VOLUME: 13

Page Numbers: 843-9

Journal Abbreviation: J. Card. Fail.

ISSN: 1532-8414

DAY: 10

MONTH: Dec

YEAR: 2007

Plasma MMP-2, MMP-9 and N-BNP in Long-Term Survivors Following Complicated Myocardial Infarction: Relation to Cardiac Magnetic Resonance Imaging Measures of Left Ventricular Structure and Function. Information

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LANGUAGE: eng

NlmUniqueID: 9442138

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AFFILIATION: University of Bergen, Stavanger University Hospital, Norway.

Country: United States

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MEDLINETA: J Card Fail

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