A metabolomics study in aqueous humor discloses altered arginine metabolism in Parkinson ’s disease

ConclusionsA combination of three metabolites, putrescine, tyrosine, and carnitine was able to correctly classify healthy participants from PD patients. Altered metabolite levels suggest altered arginine metabolism. The pattern of metabolomic disturbances was not due to the levodopa-based dopamine replacement medication because one of the patients was not yet taking levodopa but a dopamine receptor agonist.
Source: Fluids and Barriers of the CNS - Category: Neuroscience Source Type: research