1993
The effect of L-dopa infusions with and without phenylalanine challenges in parkinsonian patients: plasma and ventricular CSF L-dopa levels and clinical responses.
Woodward WR, Olanow CW, Beckner RM, Hauser RA, Gauger LL, Cedarbaum JM, Nutt JG. The effect of L-dopa infusions with and without phenylalanine challenges in parkinsonian patients: plasma and ventricular CSF L-dopa levels and clinical responses. Neurology 1993, 43: 1704-8. PMID: 8414016, DOI: 10.1212/wnl.43.9.1704.Peer-Reviewed Original ResearchConceptsL-DOPAMotor responseLarge neutral amino acidsVentricular CSF concentrationsAdvanced Parkinson's diseaseL-DOPA infusionL-DOPA levelsClinical responseParkinsonian patientsCSF concentrationsOral administrationNeutral amino acidsParkinson's diseaseInfusionPatientsPhenylalanine challengeReliable predictorCSFVDiseaseBrainDurationResponsePlasmaLevelsAdministrationAdministration of the new COMT inhibitor OR‐611 increases striatal uptake of fluorodopa
Guttman M, Léger G, Reches A, Evans A, Kuwabara H, Cedarbaum JM, Gjedde A. Administration of the new COMT inhibitor OR‐611 increases striatal uptake of fluorodopa. Movement Disorders 1993, 8: 298-304. PMID: 8341294, DOI: 10.1002/mds.870080308.Peer-Reviewed Original ResearchConceptsPositron emission tomographyNew COMT inhibitorL-DOPACOMT inhibitorsTreatment of patientsStriatal uptakeBrain uptakeBrain 6Cynomolgus monkeysParkinson's diseaseL-dopa analogEmission tomographyPromising agentSame animalsPET measurementsDiseaseMetabolismInhibitorsControl statePretreatmentPatientsFluorodopaAdjunctAdministrationUptake
1992
3‐O‐methyldopa administration does not alter fluorodopa transport into the brain
Guttman M, Léger G, Cedarbaum J, Reches A, Woodward W, Evans A, Diksic M, Gjedde A. 3‐O‐methyldopa administration does not alter fluorodopa transport into the brain. Annals Of Neurology 1992, 31: 638-643. PMID: 1514775, DOI: 10.1002/ana.410310611.Peer-Reviewed Original ResearchConceptsChronic L-DOPA therapyAdvanced Parkinson's diseaseL-dopa therapyPositron emission tomographic studiesL-DOPA administrationEmission tomographic studiesPositron emission tomographyL-dopa preparationsParkinsonian patientsPlasma concentrationsCynomolgus monkeysParkinson's diseasePatientsEmission tomographyL-DOPABrainTomographic studiesDiseaseAdministrationInfusionTherapyBlood
1986
Effect of Supplemental Carbidopa on Bioavailability of l-Dopa.
Cedarbaum J, Kutt H, Dhar A, Watkins S, McDowell F. Effect of Supplemental Carbidopa on Bioavailability of l-Dopa. Clinical Neuropharmacology 1986, 9: 153. PMID: 3085927, DOI: 10.1097/00002826-198604000-00006.Peer-Reviewed Original Research