Levodopa induces dyskinesias in normal squirrel monkeys.

Abstract:

:This study assessed whether or not levodopa induces dyskinesias in normal (ie, unlesioned) squirrel monkeys. All six animals treated twice daily with levodopa (15 mg/kg with carbidopa by oral gavage) for two weeks developed choreoathetoid dyskinesias, whereas none of the vehicle-treated animals displayed any abnormal movements. These dyskinesias did not merely reflect a generalized motor activation as locomotion was actually suppressed. The present data demonstrate that preexisting nigrostriatal damage is not necessary for the development of levodopa-induced dyskinesias.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Togasaki DM,Tan L,Protell P,Di Monte DA,Quik M,Langston JW

doi

10.1002/ana.1099

keywords:

subject

Has Abstract

pub_date

2001-08-01 00:00:00

pages

254-7

issue

2

eissn

0364-5134

issn

1531-8249

journal_volume

50

pub_type

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