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 predictorCSFVDiseaseBrainDurationResponsePlasmaLevelsAdministration
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
1991
Temporal relationships between plasma and cerebrospinal fluid pharmacokinetics of levodopa and clinical effect in Parkinson's disease
Olanow CW, Gauger LL, Cedarbaum JM. Temporal relationships between plasma and cerebrospinal fluid pharmacokinetics of levodopa and clinical effect in Parkinson's disease. Annals Of Neurology 1991, 29: 556-559. PMID: 1859185, DOI: 10.1002/ana.410290516.Peer-Reviewed Original ResearchConceptsVentricular cerebrospinal fluidCerebrospinal fluidParkinson's diseasePlasma levodopa concentrationsAdvanced Parkinson's diseaseCerebrospinal fluid pharmacokineticsPharmacokinetics of levodopaCentral nervous systemLevodopa levelsOmmaya reservoirClinical effectsLevodopa effectsParkinsonian patientsLevodopa concentrationsHomovanillic acidNervous systemDrug concentrationsLevodopaDiseaseMotor performancePatientsTime coursePharmacokineticsTemporal relationshipNucleus transplantation
1989
A double-blind crossover comparison of Sinemet CR4 and standard Sinemet 25/100 in patients with Parkinson's disease and fluctuating motor performance.
Cedarbaum JM, Hoey M, McDowell FH. A double-blind crossover comparison of Sinemet CR4 and standard Sinemet 25/100 in patients with Parkinson's disease and fluctuating motor performance. Journal Of Neurology Neurosurgery & Psychiatry 1989, 52: 207. PMID: 2649640, PMCID: PMC1032507, DOI: 10.1136/jnnp.52.2.207.Peer-Reviewed Original ResearchConceptsStandard Sinemet 25/100Sinemet 25/100Sinemet CR4Controlled-release levodopa/carbidopaDouble-blind crossover comparisonDaily medication dosesDouble-blind partMean interdose intervalLevodopa/carbidopaAntiparkinson effectMedication dosesInterdose intervalSevere dyskinesiaCrossover comparisonCrossover trialParkinsonian patientsTherapeutic responseMedication administrationMotor functionAntiparkinsonian agentsParkinson's diseaseOpen treatmentMotor responsePatientsMotor performance
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