γ-Glutamylornithine is the urine excreta of patients with HHH syndrome (peruricemia, peraminemia, and percitrullinuria) and rotary atrop associated with peruricemia. Increased levels of endogenous ornithine increase levels of γ-Glutamylornithine in the urine[1].
[1]. Roesel R A, et al. γ-Glutamylornithine excretion in patients with perornithinemia[J]. Clinica chimica acta, 1984, 140(2): 133-138.
















