COMPARATIVE STUDY
JOURNAL ARTICLE
RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
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Serotoninergic terminal transporters are differentially affected in Parkinson's disease and progressive supranuclear palsy: an autoradiographic study with [3H]citalopram.

Neuroscience 1993 June
Receptor autoradiography with [3H]citalopram as ligand was used to study the distribution of serotonin uptake binding sites in post mortem brain tissues from patients with Parkinson's disease, progressive supranuclear palsy and from age-matched controls. Significant decreases in [3H]citalopram binding sites were found in the cerebral cortex of patients with Parkinson's disease and progressive supranuclear palsy. Densities of [3H]citalopram binding sites were significantly reduced in all components of the basal ganglia of Parkinson's disease but only in the head of caudate nucleus of progressive supranuclear palsy patients. The density of [3H]citalopram binding sites in the raphe nuclei of Parkinson's disease was comparable to control values. Our results suggest that serotoninergic terminals are differentially affected in Parkinson's disease and in progressive supranuclear palsy.

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