
Keywords: AMPK; AMP-activated protein kinase; Arg; arginine; Asp; aspartate; Cit; citrulline; ESI-LC-MS/MS; electrospray ionization liquid chromatography-mass spectrometry; Orn; ornithine; OTC; ornithine transcarbamoylase; PC; phosphatidylcholine; PC aa; diacyl-p