CLINICAL SIGNIFICANCE OF PROTEIN GROWTH AND INJURY FACTORS IN ACUTE CORONARY SYNDROME

Aim. As fundamentals for current study we layed upon the comparison tasks for concentration of pregnancy associated plasma protein (PAPP-A) and insulin-like growth factor 1 (IGF-1) in blood plasma of patients with acute coronary syndrome (ACS); confirmation of biological role of PAPP-A and IGF-1 as interacting components of intravascular injury and reparation of atherosclerotic plaque; clinical significance of PAPP-A and IGF-1 in ACS patients.

Material and methods. We measured concentrations of PAPP-A and IGF-1 in 71 patient with ACS, mean age 57 year old. The study group had a diagnosed myocardial infarction (MI) in 44 patients, and unstable angina in 27; 9 death cases. Synchronically, we measured PAPP-A and IGF-1 in the control and comparison group. Comparison group consisted of 40 arterial hypertension patients and with stable forms of ischemic heart disease. Controls were 20 almost healthy persons.

Results. The concentrations of PAPP-A and IGF-1 in ACS patients that were different from controls and comparison. In unstable angina patients PAPP-A is higher than in controls 3,56 times, and in MI 11,6 times. PAPP-A in MI is 3,2 times higher than in unstable angina. In unstable angina the highest found levels of IGF-1 are 1,2 times higher than in controls. The lowest IGF-1 were in lethal cases of MI, and were 1,27 lower than in controls.

Conclusion. PAPP-A and IGF-I are new biochemical markers of intravascular injury and reparation of atherosclerotic plaques, and can be applied in urgent cardiology as analyzers of destruction and morphological instability of atherosclerotic plaques in ACS.

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