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  • Myths and realities of continuous dopaminergic stimulation
    Pirtošek, Zvezdan, 1956-
    Motor fluctuations and dyskinesia in later stages of Parkinson's disease (PD) are caused by pharmacokinetic as well as pharmacodynamic factors, intermittentdopaminergic stimulation being one of the ... most important. In the healthy brain, dopamine neurons in the substantia nigra pars compacta fire tonically at a steady rate of about 4 cycles/second. In later stages of PD, steady firing is replaced by pulsatile stimulation which causes molecular and physiologic changes in the basal ganglia. Continuous dopaminergic stimulation has been shown to dramatically improve motor fluctuations and dyskinesia by modifications of oral treatment (dopamine agonists, smaller, more frequent levodopa doses, controlled-release formulation of levodopa, addition of agentsthat slow down the catabolism of dopamine, such as inhibitors of catechol-O-methyl transferase and monoamine oxidase), transdermal delivery (rotigotine), infusion therapies (intravenous levodopa, subcutaneous application of apomorphine and lisuride, duodenal infusion of levodopa) and deep brain stimulation of the subthalamic nucleus.
    Type of material - conference contribution
    Publish date - 2011
    Language - english
    COBISS.SI-ID - 28380633