منابع مشابه
Metabolism of Cardiac Muscle
Both pyruvate and lactate are extracted by the intact myocardium at physiological levels (1, 2) and are rapidly burned to CO2 in the intact cardiac muscle slice. They are interconverted by the diphosphopyridine nucleotide-dependent lactic acid dehydrogenase system and share a common final pathway for terminal oxidation (3, 4). Since these substrates are so closely related in carbohydrate metabo...
متن کاملThe controllability of cardiac rhythm in elderly
Introduction: Recent reports have shown that rare fluctuations in cardiac cycles are ‘forgotten’ quickly in healthy individuals and it is possible to quantify the “memory length” of a physiological time-series using an inverse statistical approach. Methods: In the present study, we assessed the effect of aging on memory length in cardiac rhythm. Results: There was a long...
متن کاملMetabolism of ischemic cardiac muscle.
The aerobic metabolism of homogenates of normal and ischeinic left ventricle was compared in dogs at various time intervals (15 min. to 24 hours) after high ligation of the circumflex branch of the left coronary artery. Glucose and fruetose-l,6-diphosphate were used as substrates. The injured tissue was taken from the posterior papillary muscle (PP) and the non-ischemic tissue from the anterior...
متن کاملRegulation of glucose metabolism in cardiac muscle.
Introduction In the heart, like in many other tissues, glucose uptake and metabolism is regulated by the availability of substrates including oxygen, by the energy demand and by the hormonal and dietary status of the organism. It is reasonable to assume that heart glycolysis is controlled at several steps, including glucose transport and phosphorylation, and the reaction catalysed by 6-phosphof...
متن کاملMetabolism of palmitaldehyde in human cardiac muscle.
W. J. FER~ELL AND K.-C. YAO. Metabolism of Palmitaldehyde in Human Cardiac Muscle. 3ourml of Molecular and Cellular Cardiology (1976) 8, 1-13. Palmitaldehyde-1-r4[C] was incubated with homogenates of human heart and the distribution of radioactivity in the nonpolar and polar lipids was determined. Comparisons between the radioactivity in the acyl, alkyl and alk-I-enyl moieties were evaluated. T...
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ژورنال
عنوان ژورنال: Quarterly Journal of Experimental Physiology
سال: 1917
ISSN: 0370-2901
DOI: 10.1113/expphysiol.1917.sp000232