Abstract:
:In the present study, the involvement of dopamine D1 and D2 receptors in the dorsal globus pallidus (GP) in motor control was investigated in rats. Results show that bilateral microinfusions of the dopamine D1 receptor antagonist SCH23390 or the dopamine D2 antagonist S( - )-sulpiride into the GP induced akinesia determined by means of the catalepsy test. These findings indicate that pallidal dopamine D1 and D2 receptors are critically involved in the control of motor behaviour. The findings further imply that defective dopaminergic transmission in the GP might contribute to akinesia due to lesion- or drug-induced dopamine hypofunction in experimental animals and in neurodegenerative diseases, e.g. Parkinson's disease, affecting the nigrostriatal dopamine system.
journal_name
Behav Brain Resjournal_title
Behavioural brain researchauthors
Hauber W,Lutz Sdoi
10.1016/s0166-4328(99)00102-3subject
Has Abstractpub_date
1999-12-01 00:00:00pages
143-50issue
1-2eissn
0166-4328issn
1872-7549pii
S0166-4328(99)00102-3journal_volume
106pub_type
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