Linked from

The 17 pages that link to Urea cycle, each with the reason it gives.

• UreaRelated: This metabolic pathway produces most urea in mammals.

• HepatocyteRelated: Hepatocytes use this pathway to dispose of ammonia generated during amino-acid breakdown.

• Purine metabolismCompared with: Unlike purine catabolism, it disposes of nitrogen mainly as urea rather than urate.

• AmmoniumRelated: It incorporates ammonium-derived nitrogen into a form the body can excrete.

• LysineRelated: Lysine breakdown contributes nitrogen that ultimately must be handled through nitrogen disposal.

• Dietary proteinRelated: Excess amino nitrogen from protein metabolism is ultimately disposed of through this pathway.

• ArginineRelated: Arginine is formed and then cleaved in this pathway to release urea.

• AlanineRelated: Nitrogen delivered to the liver in alanine can enter urea synthesis.

• Aspartic acidRelated: Aspartate supplies one of the two nitrogen atoms in urea.

• GlutamineRelated: Nitrogen delivered in glutamine can ultimately enter this principal route of nitrogen disposal.

• HyperammonemiaRelated: This pathway normally removes most ammonia from the body; inherited defects are a major cause of hyperammonemia.

• OrnithineNarrower topic: Ornithine is regenerated within this cycle as nitrogen is routed toward urea.

• CitrullineRelated: Citrulline is formed from ornithine and carbamoyl phosphate early in this cycle.

• Hans KrebsBroader topic: Krebs and Kurt Henseleit identified this metabolic cycle before the citric acid cycle.

• CatabolismRelated: Amino-acid catabolism releases nitrogen that this pathway makes safer to eliminate.

• ExcretionRelated: It makes nitrogenous waste safer to transport from the liver to the kidneys.

• Hippuric acidCompared with: It is another nitrogen-disposal pathway, but hippuric acid formation conjugates organic compounds rather than detoxifying ammonia.