The blood-brain barrier is intact after levodopa-induced dyskinesias in parkinsonian primates--evidence from in vivo neuroimaging studies

Arnar Astradsson, Bruce G Jenkins, Ji-Kyung Choi, Penelope J Hallett, Michele A Levesque, Jack S McDowell, Anna-Liisa Brownell, Roger D Spealman, Ole Isacson

    28 Citations (Scopus)

    Abstract

    It has been suggested, based on rodent studies, that levodopa (L-dopa) induced dyskinesia is associated with a disrupted blood-brain barrier (BBB). We have investigated BBB integrity with in vivo neuroimaging techniques in six 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) lesioned primates exhibiting L-dopa-induced dyskinesia. Magnetic resonance imaging (MRI) performed before and after injection of Gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) revealed an intact BBB in the basal ganglia showing that l-dopa-induced dyskinesia is not associated with a disrupted BBB in this model.
    Original languageEnglish
    JournalNeurobiology of Disease
    Volume35
    Issue number3
    Pages (from-to)348-51
    Number of pages4
    ISSN0969-9961
    DOIs
    Publication statusPublished - Sept 2009

    Keywords

    • 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine
    • Animals
    • Antiparkinson Agents
    • Blood-Brain Barrier
    • Brain
    • Dyskinesia, Drug-Induced
    • Gadolinium DTPA
    • Levodopa
    • Macaca fascicularis
    • Magnetic Resonance Imaging
    • Male
    • Parkinsonian Disorders
    • Time Factors

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