Frontiers Cerebrospinal fluid biochemical studies in patients with Parkinson's disease: toward a potential search for biomarkers for this disease Glutamate cysteine ligase as a diagnostic biomarker and therapeutic target in Parkinson's disease: a multi omics and experimental study European Journal of Medical Research Springer Nature Link Frontiers Targeting Mitochondrial Impairment in Parkinson's Disease: Challenges and Opportunities Full article: Detoxification and antioxidative therapy for levodopa induced neurodegeneration in Parkinson's disease