Rainer Winkel

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Psychiatric classificatory systems consider obsessions and compulsions as forms of anxiety disorder. However, the neurology of diseases associated with obsessive-compulsive symptoms suggests the involvement of fronto-striatal regions likely to be involved in the mediation of the emotion of disgust, suggesting that dysfunctions of disgust should be(More)
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)
Seven of nine postal workers exposed to lead-sulfate batteries over a period of up to 30 years developed parkinsonian symptoms. One of the remaining two showed left-hand bradykinesia and one was not available for examination. The high prevalence and cause of parkinsonism in these patients remains unexplained. Lead intoxication may play a role in the(More)
Online dating platforms have become the second-most important meeting channel for couples, offering detailed data to analyze search and matching problems. Using a novel dataset from a mobile dating app, I observe search behavior, estimate individual preferences from binary willingness-to-date decisions and analyze asymmetries in outcomes across gender, an(More)
The outcome of pursuing an upper or post-secondary education degree is uncertain. A student might not complete a chosen degree for a number of reasons, such as insufficient academic preparation or financial constraints. Thus, when considering whether to invest in post-secondary education, students must factor their probability of completing the degree into(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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