Acute phase proteins and systolic dysfunction in subjects with acute myocardial infarction

Area of Science:

• Cardiology
• Biochemistry
• Inflammation Research

Background:

• Acute myocardial infarction (AMI) triggers an inflammatory response.
• Acute phase proteins (APPs) are key markers of inflammation.
• Understanding APP dynamics in AMI is crucial for prognosis.

Purpose of the Study:

• To explore the relationship between plasma APP levels and left ventricular systolic function in the early stages of AMI.
• To assess the prognostic significance of APPs in patients with ST-elevation myocardial infarction (STEMI).

Main Methods:

• Measured plasma concentrations of alpha-1-anti-trypsin (A1AT), alpha 1 glyco-protein (A1GP), haptoglobin (HG), caeruloplasmin (CP), and C-reactive protein (CRP) in 123 STEMI patients within 12 hours of symptom onset.
• Assessed left ventricular systolic function using bi-dimensional echocardiography.
• Correlated APP levels with echocardiographic findings and in-hospital adverse events.

Main Results:

• A1AT, A1GP, HG, and CP levels significantly correlated with admission CRP concentrations.
• Left ventricular ejection fraction showed an inverse correlation with plasma levels of A1GP, A1AT, CP, and HG.
• The incidence of acute heart failure correlated with APP values, with CP being the most significant predictor.

Conclusions:

• Systolic dysfunction in STEMI patients is associated with a heightened inflammatory response, indicated by increased plasma APPs.
• Elevated APP concentrations appear to have short-term prognostic relevance in STEMI patients.
• APP levels may serve as valuable biomarkers for predicting adverse outcomes in acute myocardial infarction.