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KeywordsHydroxymethylglutaryl-CoA reductase inhibitors; lipids; acute coronary syndrome; atherosclerosis; genetic pleiotropy/ drug effects. AbstractStatins are the main resource available to reduce LDL-cholesterol levels. Their continuous use decreases cardiovascular morbidity and mortality due to atherosclerosis. The administration of these medications demonstrated to be effective in primary and secondary prevention clinical trials in low and high risk patients. Specialists believe that a possible benefit of hypolipidemic therapy in preventing complications of atherosclerotic diseases is in the reduction of deposition of atherogenic lipoproteins in vulnerable areas of the vasculature.Experimental studies with statins have shown an enormous variety of other effects that could extend the clinical benefit beyond the lipid profile modification itself. Statinbased therapies benefit other important components of the atherothrombotic process: inflammation, oxidation, coagulation, fibrinolysis, endothelial function, vasoreactivity and platelet function. The demonstration of the effects that do not depend on cholesterol lowering or the pleiotropic effects of statins provides the theoretical basis for their potential role as adjunctive therapy in acute coronary syndromes.Retrospective analyses of a variety of studies indicate the potential benefit of statins during acute coronary events. Recent clinical studies have addressed this important issue in prospective controlled trials showing strong evidence for the administration of statins as adjunctive therapy in acute coronary syndromes.

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