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Overview
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Background
Phosphocreatine (also known as creatine phosphate) disodium salt is a phosphorylated creatine molecule that may serve as a quickly accessible reserve of high-energy phosphates in skeletal muscle, myocardium as well as the brain. Phosphocreatine can offer a phosphate group to ADP for ATP synthesis, or conversely, excess ATP can be used to convert creatine to creatine phosphate via creatine kinase. Thus, phosphocreatine disodium salt could be used as a substrate for the determination of creatine kinase, and is used to regenerate ATP during skeletal muscle contraction.
1. Wallimann T, Wyss M, Brdiczka D, et al. Intracellular compartmentation, structure and function of creatine kinase isoenzymes in tissues with high and fluctuating energy demands: the 'phosphocreatine circuit' for cellular energy homeostasis. Biochemistry Journal, 1992, 281: 21-40.
2. Feldman EB. Creatine: a dietary supplement and ergogenic aid. Nutrition Reviews, 1999, 57(2): 45-50.
3. Qaed E, Wang J, Almoiliqy M, et al. Phosphocreatine improves cardiac dysfunction by normalizing mitochondrial respiratory function through JAK2/STAT3 signaling pathway in vivo and in vitro. Oxidative Medicine and Cellular Longevity, 2019, 2019: 6521218.
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Overview