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Erschienen in: Acta Neuropathologica 3/2004

01.03.2004 | Regular Paper

Modulation of simian immunodeficiency virus neuropathology by dopaminergic drugs

verfasst von: S. Czub, M. Czub, E. Koutsilieri, S. Sopper, F. Villinger, J. G. Müller, C. Stahl-Hennig, P. Riederer, V. ter Meulen, G. Gosztonyi

Erschienen in: Acta Neuropathologica | Ausgabe 3/2004

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Abstract

Drug abuse and human immunodeficiency virus (HIV) infection seem to cause cumulative damage in the central nervous system (CNS). Elevated extracellular dopamine is thought to be a prime mediator of the reinforcing effects of addictive substances. To investigate the possible role of increased dopamine availability in the pathogenesis of HIV dementia, simian immunodeficiency virus (SIV)-infected monkeys were treated with dopaminergic drugs (selegiline or l-DOPA). Both substances increased intracerebral SIV expression, combined with aggravation of infection-related neuropathology and ultrastructural alterations of dendrites in dopaminergic areas (spongiform polioencephalopathy) in asymptomatic animals. Moreover, this treatment resulted in enhanced TNF-α expression in the brains of SIV-infected animals. These findings indicate a synergistic interaction between dopamine and SIV infection on microglia activation, leading to increased viral replication and production of neurotoxic substances. Our results suggest that increased dopamine availability through dopaminergic medication or addictive substances may potentiate HIV dementia.
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Metadaten
Titel
Modulation of simian immunodeficiency virus neuropathology by dopaminergic drugs
verfasst von
S. Czub
M. Czub
E. Koutsilieri
S. Sopper
F. Villinger
J. G. Müller
C. Stahl-Hennig
P. Riederer
V. ter Meulen
G. Gosztonyi
Publikationsdatum
01.03.2004
Verlag
Springer-Verlag
Erschienen in
Acta Neuropathologica / Ausgabe 3/2004
Print ISSN: 0001-6322
Elektronische ISSN: 1432-0533
DOI
https://doi.org/10.1007/s00401-003-0801-3

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