ISSN:
1432-2072
Schlagwort(e):
Dopamine agonists
;
5HT antagonists
;
Muscarinic antagonists
;
Glutamate antagonists
;
Marmoset
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Abstract A modified primate model of Parkinson's disease was developed to assess the effectiveness of various agents that act via dopamine, acetylcholine, serotonin or glutamate systems. Using a MPTP dosing regimen a reversible parkinsonian-like syndrome was produced in the marmoset. An obvious advantage of such a protocol is that it allows multiple drug studies to be undertaken in animals, without the need for prolonged anti-parkinsonian therapy to maintain their health. Results show that dopamine D2 agonists (bromocriptine, quinpirole, N,N-dipropyl,A,5,6-DTN, (+)3PPP and PHNO), anti-muscarinics (atropine, scopolamine and benztropine), in addition tol-DOPA and nomifensine, all reduced the bradykinesia induced by MPTP. The D1 agonist SKF-38393 and the partial dopamine agonist (−)3PPP were both ineffective. Finally, agents with potential therapeutic use in Parkinson's disease were also tested. However, a glutamate antagonist (MK801) and three serotonin antagonists (ritanserin, ketanserin and ICI 170,809) were all unable to alter the MPTP effects, at the doses used in our study.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02244093
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