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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Methodist+Debakey+Cardiovasc+J 2017 ; 13 (1): 15-9 Nephropedia Template TP
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Circadian Control of Cardiac Metabolism: Physiologic Roles and Pathologic Implications #MMPMID28413577
Young ME
Methodist Debakey Cardiovasc J 2017[Jan]; 13 (1): 15-9 PMID28413577show ga
Over the course of the day, the heart is challenged with dramatic fluctuations in energetic demand and nutrient availability. It is therefore not surprising that rhythms in cardiac metabolism have been reported at multiple levels, including the utilization of glucose, fatty acids, and amino acids. Evidence has emerged suggesting that the cardiomyocyte circadian clock is in large part responsible for governing cardiac metabolic rhythms. In doing so, the cardiomyocyte clock temporally partitions ATP generation for increased contractile function during the active period, promotes nutrient storage at the end of the active period, and facilitates protein turnover (synthesis and degradation) during the beginning of the sleep phase. This review highlights the roles of cardiac metabolism rhythms as well as the potential pathological consequences of their impairment.