Creatine, an endogenous amino acid derivative, plays an important role in cellular energy, especially in muscle and brain.
[1]. Nouioua S, et al. Creatine deficiency syndrome. A treatable myopathy due to arginine-glycine amidinotransferase (AGAT) deficiency. Neuromuscul Disord. 2013 Aug;23(8):670-4.
















