Biomarkers of cardiovascular diseases

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Abstract
Biomarkers are indicators of normal biological processes, pathogenic processes or pharmacologic responses to therapeutic interventions. Interleukin-6 (IL - 6) is a biomarker whose synthesis could be activated by various stimuli, such as interferon-g (IFN - g), tumor necrosis factor (TNF) and/or interleukin - 1 (IL - 1). IL - 6 achieves its effects through the IL-6 receptor (IL - 6R). It has been shown that transgenic mice, which have induced expression of IL - 6 and IL - 6R develop myocardial hypertrophy. In myocardial hypertrophy, an important role is played by a newly discovered cardiotrophin-1, a member of the IL - 6 family. The activity of IL - 6 is associated with the development of abdominal aortic aneurysm (AAA); in fact, it has been shown that the concentration of IL - 6 positively correlates with AAA diameters. C-reactive protein (CRP) is one of the biomarkers of cardiovascular diseases. Local production of CRP by the smooth muscular and endothelial cells of the vessel leads to the development of atherosclerosis to a large extent. Oxidized low-density lipoprotein (ox - LDL) also has an important role in the development of atherosclerosis. After penetrating the intima of the vessel, ox - LDL induces monocyte collection, i.e. monocytes are translated into macrophages that bind ox - LDL. Having filled the macrophages with ox - LDL, the signals of cell death are activated, which leads to the creation of foamy cells that make up the initial part of the atherosclerotic plaque. New knowledge about the mechanism of action and the role of biomarkers in the development of cardiovascular diseases will certainly provide an opportunity to prevent the onset of these disorders, as well as an adequate therapy in the treatment of cardiovascular diseases, which is one of the main goals of intensive research in the field of biomarkers.
Funding Information
  • Ministry of Education, Science and Technological Development of the Republic of Serbia (173033)

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