Journal
JOURNAL OF ETHNOPHARMACOLOGY
Volume 112, Issue 2, Pages 327-332Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2007.03.022
Keywords
paeoniflorin; Paeoniae radix; behavior recovery adenosine A(1) receptor; striatal 6-hydroxydopamine-lesion rat; non-dopaminergic approach; Parkinson's disease
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In the present studies, the effect of paeoniflorin (PF), one of the main compounds extracted from Paeoniae radix, in alleviating the neurological impairment following unilateral striatal 6-hydroxydopamine (6-OHDA) lesion was examined in Sprague-Dawley rats. Sub-chronic PF (2.5, 5 and 10mg/kg, s.c., twice daily for 11 days) administration dose-dependently reduced apornorphine (APO)-induced rotation, suggesting that PF had an ameliorative effect on the 6-OHDA-induced neurological impairment. Notably, PF had no direct action on dopamine D-1 receptor or dopamine D-2 receptor indicated by the competitive binding experiments. These results suggest that PF, an active component of Paeoniae radix, might provide an opportunity to introduce a non-dopaminergic management of Parkinson's disease. (c) 2007 Elsevier Ireland Ltd. All rights reserved.
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