Movement Disorders (revue)

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Nigrostriatal upregulation of 5‐HT2A receptors correlates with motor dysfunction in progressive supranuclear palsy

Identifieur interne : 002183 ( Main/Exploration ); précédent : 002182; suivant : 002184

Nigrostriatal upregulation of 5‐HT2A receptors correlates with motor dysfunction in progressive supranuclear palsy

Auteurs : Maria Stamelou [Allemagne] ; Andreas Matusch [Allemagne] ; David Elmenhorst [Allemagne] ; René Hurlemann [Allemagne] ; Karla M. Eggert [Allemagne] ; Karl Zilles [Allemagne] ; Wolfgang H. Oertel [Allemagne] ; Günter U. Höglinger [Allemagne] ; Andreas Bauer [Allemagne]

Source :

RBID : ISTEX:C9C7F6F48A73FC841BA75DE92A7EA650E09C4457

Descripteurs français

English descriptors

Abstract

A dysfunction of multiple neurotransmitter systems is assumed as a neurochemical basis of the akinetic‐rigid syndrome of progressive supranuclear palsy (PSP). In vitro studies have produced conflicting results on the serotoninergic system in PSP. We, therefore, studied the binding potential of the serotonin 2A (5‐HT2A) receptor ligand [18F]altanserin in 8 patients with clinically probable PSP and 13 healthy controls using positron emission tomography. We found an up‐regulation of 5‐HT2A receptors in the substantia nigra and, to a lower degree, in the striatum, while neocortical 5‐ HT2A receptor densities showed no changes upon partial‐volume correction. Nigral and striatal receptor changes were significantly correlated with patients' scores of motor dysfunction (UPDRS III, PSP‐rating scale) pointing to a functional relevance of the described findings. © 2009 Movement Disorder Society

Url:
DOI: 10.1002/mds.22533


Affiliations:


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Le document en format XML

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<term>Brain Mapping</term>
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