Summary
Metabolic changes in the nonischemic myocardium after acute myocardial infarction in canine hearts were studied. Ca2+-ATPase activity and the major ATPase protein of the sarcoplasmic reticulum, tissue levels of ATP, mitochondrial respiratory, and complex I activities were decreased in the noninfarcted zone in proportion to heart function. It is suggested that recovery of these functions may be important in any treatment of pump failure.
The prognosis of acute myocardial infarction has improved remarkably in recent decades with the establishment of coronary care units. However, the mortality of patients in whom acute myocardial infarction is complicated by severe pump failure remains higher, and this etiology has not been completely elucidated. The relationship between infarct size and the occurrence of pump failure has been discussed, for a long time, but this problem has not yet been completely resolved. The aim of this study was to understand metabolic changes in nonischemic myocardium on acute myocardial infarction in canine hearts in terms of the biochemistry of the sarcoplasmic reticulum, tissue ATP content, and the mitochondria.
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Ishioka, H. et al. (1995). Metabolic Changes in Nonischemic Myocardium During Pump Failure. In: Singal, P.K., Dixon, I.M.C., Beamish, R.E., Dhalla, N.S. (eds) Mechanisms of Heart Failure. Developments in Cardiovascular Medicine, vol 167. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2003-0_6
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DOI: https://doi.org/10.1007/978-1-4615-2003-0_6
Publisher Name: Springer, Boston, MA
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