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Exogenous application of levodopa is conventionally used to equalize the striatal dopamine deficit in idiopathic Parkinson's disease (PD). The stimulation of endogenous biosynthesis of levodopa via activation of tyrosine hydroxylase (TH) has been proposed as new therapeutic concept in PD. This may be achieved by exogenous supply with the reduced coenzyme(More)
OBJECTIVE To assess the effects on motor functioning, health status and direct medical costs of high-frequency stimulation of the subthalamic nucleus (DBS-STN) in patients with idiopathic Parkinson's disease (PD). In addition, the cost-effectiveness of DBS-STN vs. drug treatment was investigated. METHODS 16 consecutive patients with PD from two centers(More)
INTRODUCTION Pantothenate kinase-associated neurodegenerative disease (PKAN) is a secondary generalized dystonia associated with an accumulation of iron in the basal ganglia and increased motor cortex excitability. A pilot study in three patients with secondary generalized dystonia had reported a reduced frequency of painful axial spasms following(More)
The accurate clinical diagnosis of parkinsonism may be impeded by atypical presentations and confounding comorbidity. The presence of parkinsonism is misdiagnosed in up to a quarter of cases in general practice. Movement disorder specialists misdiagnose parkinsonian syndromes using histopathological findings as the "gold standard" in up to 10% of cases.(More)
OBJECTIVE Previous studies demonstrated controversial results regarding monoamine oxidase B (MAO-B) activity in platelets in the periphery in parkinsonian patients (PD). SUBJECTS AND METHODS Therefore we determined platelet MAO-B activity in three age- and sex-matched groups of 17 untreated, so called "de novo" patients with Parkinson's disease (PD), 17(More)
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