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During myocardial ischemia, both the myocardial and serum TNF concentrations are rapidly increased within the area at risk. With prolongation of ischemia and development of cardiomyocyte necrosis, the TNF concentration increases also in the surrounding viable portions of the myocardium. Indeed, in the scenario of myocardial ischemia/reperfusion, treatment with TNF antibodies reduced the extent of...
Duringnormoperfusion, both myocardial blood flow and contractile function are heterogeneously distributed throughout the left ventricle. Midwall segment shortening is greater at the apex than at the base of the left ventricle, and greater in the anterior than in the posterior wall. Also, transmural heterogeneity of myocardial deformation exists, with greater segment shortening and wall thickening...
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