Key wordsacid, aminobutyric, alanine, proline, isoleucine, sacrosine, sulfocysteine, kairos, homocitrulline, aminoisobutyric, aminoadipic, argininosuccinic, homocystine, anserine, hydroxylysine, carnosine, glycyl, allo, phosphoethanolamine, ethanolamine, hydroxyproline, histidine, phenylalanine, taurine, cystathionine, kynurenine, citrulline, kit, ornithine, cystine, amino, arginine, threonine, valine, aspartic, glutamine, glutamic, tyrosine, serine, glycine, asparagine, tryptophan, leucine, methionine, lysine, beta, application, note, biomedical, day