… to define potential tricarboxylate cycle activity and its response to aging. Activities were
significantly … Cytochrome oxidase was measured as an index of total respiratory chain activity and …

… of ATP by 30%/ witholut any significant change in muscle ATP or ADP … activity in perchloric
acid-soluble metabolites could be accounted for by the radioactivities of tricarboxylate-cycle …

… ) cycle with brain mitochondria that increased C 2 flux into the tricarboxylic acid cycle from
… NADH by the Borst cycle and the requirement of the brain for a continuous supply of energy. …

… oxygen consumption and tricarboxylate-cycle turnover increased … The only significant
changes in tricarboxylate-cycle … could not be accounted for by changes in the known effectors of …

… intermediates in heart muscle to undergo rapid changes in … the activities of the individual
enzymes of the cycle at an … M, Control of the tricarboxylate cycle and its interactions with …

… Acetate was chosen as the exogenous substrate since its metabolism occurs via the TCA
cycle and is not altered by changes in glycolytic or pyruvate dehydrogenase activity. HEPES …

… tricarboxylate cycle control in which citrate synthase activity is … changes in isocitrate content
is not clear but may be related to an overall increase in intramitochondrial tricarboxylate cycle …

… (TCA) cycle intermediates (TCAI) and the control of cycle activity have been characterized in
… 3), since the ratio of the change in TCAI pool size to change in cycle flux (ie, ΔTCAI pool size…

… that two different mechanisms underlie the changes observed in the other … activity occurred
in the mesophyll cells, no effect on these parameters was noted in plants in which the activity …

… study is ascribable entirely to a change in the P/O ratio. … In other words, the elaboration and
delivery to the TCA cycle of … muscle to enhance the activity of the TCA cycle and thus increase …