Description_x000D_ General description_x000D_ L-Ornithine is the functional metabolite of L-arginine._x000D_ L-Ornithine is an amino acid that is not coded for by the genetic code. It is formed during the decomposition of argininine by arginase and participates in the urea cycle. Ornithine is the starting point for the formation of a family of polyamines that include spermine, spermidine and putrescine._x000D_ Application_x000D_ L-Ornithine monohydrochloride has been used:_x000D_ • as a supplement in Dulbecco′s modified eagle medium (DMEM) for cell growth assays_x000D_ • as a component in the standard medium for primary human hepatocytes (PHH) culture_x000D_ • as a creatine synthesis inhibitor_x000D_ Packaging_x000D_ 25, 100 g in poly bottle_x000D_ Biochem/physiol Actions_x000D_ L-ornithine acts as a precursor for polyamines. It may modulate the intake of food as an acute satiety signal in the neonatal chick brain._x000D_ L-Ornithine is used as a media supplement to support the biosynthesis of polyamines._x000D_ Other Notes_x000D_ Product of arginine degradation by arginase