l-ornithine

L-Ornithine ((S)-2,5-Diaminopentanoic acid) exhibits an anti-fatigue function by promoting ammonia excretion and enhancing energy consumption efficiency.

L-Ornithine hydrochloride ((S)-2,5-Diaminopentanoic acid) has an antifatigue effect by increasing the efficiency of energy consumption and promoting the excretion of ammonia. It is one of the key reactants in the urea cycle.

L-Citrulline, an amino acid, is derived from ornithine during the catabolism of proline, glutamate, or glutamine, and also from L-arginine via the arginine-citrulline pathway.

L-Canaline, a nonprotein amino acid found in many leguminous plants, exhibits potent anticancer and antiproliferative effects. It effectively inhibits the growth of the malaria parasite Plasmodium falciparum with an IC50 of 297 nM. Additionally, L-Canaline acts as a cytotoxic metabolite produced from L-canavanine through arginase catalysis and serves as a potent and irreversible inhibitor of ornithine aminotransferase.

L-Homocitrulline (Homocitrulline) is a metabolite that can be detected in larger amounts in the urine of individuals with urea cycle disorders. The accumulation of carbamyl phosphate due to a depleted supply of ornithine for the urea cycle may be responsible for the enhanced synthesis of L-Homocitrulline and homoarginine in some cases.

N-Acetylornithine (N-Acetyl-L-ornithine) is a minor component of deproteinized blood plasma of human blood. Human blood plasma contains a variable amount of acetylornithine, averaging 1.1 + - 0.4 μmol L. Urine contains a very small amount of acetylornithine, approximately 1 nmol mg creatinine (1 μmol day).