Journal
MOLECULAR AND CELLULAR BIOCHEMISTRY
Volume 350, Issue 1-2, Pages 163-168Publisher
SPRINGER
DOI: 10.1007/s11010-010-0694-0
Keywords
Acute myocardial infarction; Lactate dehydrogenase; Malate dehydrogenase; Deoxyribonuclease I; Gelatinases A and B
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Funding
- Ministry of Science and Technological Development of Serbia [175063]
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Coronary artery disease is a multifunctional disease and represents one of the leading causes of death worldwide. Oxidative stress appears as an etiological factor for myocardial damage during acute myocardial infarction. Some data suggest that acute coronary syndromes may also be influenced by matrix metalloproteinases through degradation of the fibrous cap of vulnerable atherosclerotic lesions. It has been indicated that gelatinases A and B play a key role in acute myocardial infarction and deoxyribonuclease I has been postulated to be a novel early phase marker of disease. The aim was to study activity of gelatinases A and B in acute myocardial infarction and its association with some membrane damage markers. Seventy-five patients with disease and seventy-five healthy controls were enrolled. Activities of lactate dehydrogenase, malate dehydrogenase, and deoxyribonuclease I were estimated using standard spectrophotometric assay and isoforms of lactate and malate dehydrogenases were determined using direct zymography. Activity of dehydrogenases was significantly higher in patients, while deoxyribonuclease I was lower. Isoform 2 of lactate dehydrogenase was significantly higher in the patient group. Gelatinases A and B were detected only in patients group. The results suggest determination of serum malate dehydrogenase activity to be used as an additional parameter for acute myocardial infarction diagnosis. Those findings suggest important role of gelatinases A and B as biomarkers of early stage of acute myocardial infarction together with membrane damage parameters.
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