"Parkinson's disease, L-DOPA, and endogenous morphine: A revisit"@en . "5"^^ . . . . "RIV/00064203:_____/12:8211!RIV13-MZ0-00064203" . "RIV/00064203:_____/12:8211" . . . . "Kralickova, M." . "Stefano, GB" . "8" . . "[0E3A95273F04]" . . . "Ku\u017Eelov\u00E1, Hana" . "Parkinson's disease, L-DOPA, and endogenous morphine: A revisit" . . "Esch, T." . . "000308604800025" . "dopamine; L-DOPA; Parkinson's disease; morphine; tetrahydropapaveroline; nitric-oxide release; white blood-cells; cocaine-evoked release; ventral tegmental area; tetrahydroisoquinoline alkaloids; rat-brain; in-vivo; opiate alkaloids; invertebrate ganglia; synthesize morphine"@en . "I, N" . . "Clinical observations stemming from widespread employment of restorative L-3,4-dihydroxyphenylalanine (L-DOPA) therapy for management of dyskinesia in Parkinson's Disease (PD) patients implicate a regulatory role for endogenous morphine in central nervous system dopamine neurotransmission. Reciprocally, it appears that restorative L-DOPA administration has provided us with a compelling in vivo pharmacological model for targeting peripheral sites involved in endogenous morphine expression in human subjects. The biological activities underlying endogenous morphine expression and its interaction with its major precursor dopamine strongly suggest that endogenous morphine systems are reciprocally dysregulated in PD. These critical issues are examined from historical and current perspectives within our short review."@en . "157852" . "1234-1010" . . . "http://www.ncbi.nlm.nih.gov/pubmed/22847214" . . . "Clinical observations stemming from widespread employment of restorative L-3,4-dihydroxyphenylalanine (L-DOPA) therapy for management of dyskinesia in Parkinson's Disease (PD) patients implicate a regulatory role for endogenous morphine in central nervous system dopamine neurotransmission. Reciprocally, it appears that restorative L-DOPA administration has provided us with a compelling in vivo pharmacological model for targeting peripheral sites involved in endogenous morphine expression in human subjects. The biological activities underlying endogenous morphine expression and its interaction with its major precursor dopamine strongly suggest that endogenous morphine systems are reciprocally dysregulated in PD. These critical issues are examined from historical and current perspectives within our short review." . "Medical Science Monitor" . "7"^^ . . "PL - Polsk\u00E1 republika" . . . . . "Ptacek, R." . "Mantione, KJ" . "Parkinson's disease, L-DOPA, and endogenous morphine: A revisit" . . "Kream, R. M." . . "Parkinson's disease, L-DOPA, and endogenous morphine: A revisit"@en . . "1"^^ . . "18" . . . .