lornithine

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

gamma-Glutamylornithine can be isolated from the urine of patients with hyperornithinemia.

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).

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.