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“Background-The availability of more sensitive biomarkers of myonecrosis and a new classification system from the universal definition of myocardial infarction (MI) have led to evolution of the classification of AZD4547 mw MI. The prognostic implications of MI defined in the current era have not been well described.\n\nMethods and Results-We

investigated the association between new or recurrent MI by subtype according to the European Society of Cardiology/American College of Cardiology/American Heart Association/World Health Federation Task Force for the Redefinition of MI Classification System and the risk of cardiovascular death among 13 608 patients with acute coronary syndrome in the Trial to Assess Improvement in Therapeutic Outcomes by Optimizing Platelet Inhibition with Prasugrel-Thrombolysis in Myocardial Infarction 38 (TRITON-TIMI 38). The adjusted risk of cardiovascular death AZD6094 clinical trial was evaluated by landmark analysis starting at the time of the MI through 180 days after the event. Patients who experienced an MI during follow-up had a higher risk of cardiovascular death at 6 months

than patients without an MI (6.5% versus 1.3%, P<0.001). This higher risk was present across all subtypes of MI, including type 4a (peri-percutaneous coronary intervention, 3.2%; P<0.001) and type 4b (stent thrombosis, 15.4%; P<0.001). After adjustment for important clinical covariates, the occurrence of any MI was

associated with a 5-fold higher risk of death at 6 months (95% confidence interval 3.8-7.1), with similarly increased risk across subtypes.\n\nConclusions-MI is associated with a significantly increased risk of cardiovascular death, with a consistent relationship across all types as defined by the universal classification system. These findings underscore the clinical relevance of these events and the importance of therapies aimed at preventing MI.”
“Mutations in or ablation of the gene encoding caveolin-3, selleck chemical a protein of muscle cell caveolae, result in forms of muscular dystrophy and cardiomyopathy. Another member of the caveolin gene family, caveolin-1, is widely considered not to be expressed in myocytes, yet ablation of the gene encoding this protein in mice also results in cardiomyopathy. By applying the high-resolution electron-microscopical imaging technique of freeze-fracture replica immunolabelling, we report here evidence that caveolin-1 is expressed in human cardiac myocytes, localized to both caveolae and non-caveolar domains in the plasma membrane. Disorders of the myocyte resulting from defects in caveolin-1 may thus arise directly, at the level of the myocyte, rather than via other cell types as previously proposed.