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Cardiac syndrome X, also known as microvascular angina, is characterized by exercise-induced chest pain occurring despite a normal coronary angiogram. Several causes and mechanisms have been proposed to explain both the chest pain and ST segment depression. In this study, the association, if any, between cardiac syndrome X and several factors, including blood total antioxidant status, C-reactive protein (CRP), and monocyte chemotactic protein-1 (MCP-1) levels, was investigated.

circulation journal

Are Low Total Serum Antioxidant Status and Elevated Levels of C-Reactive Protein and Monocyte Chemotactic Protein-1 Associated With Cardiac Syndrome X?