期刊
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
卷 78, 期 1, 页码 27-33出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pbb.2004.01.019
关键词
Aniba riparia; riparin III; anxiolytic and antidepressant effects
This work presents behavioral effects of methyl ethers of N-(2,6-dihydroxybenzoyl) tyramine (riparin III) isolated from the unripe fruit of Aniba riparia on the open field, elevated plus maze (EPM), rotarod, hole board, barbiturate-induced sleeping time, tail suspension and forced swimming tests in mice. Riparin III was administered intraperitoneally to male mice at single doses of 25 and 50 mg/kg. The results showed that riparin III with both doses had no effects on spontaneous motor activity in mice or in the rotarod test, but decreased the number of grooming and rearing. At the dose of 50 mg/kg, riparin III increased the number of entries in the open arms of the EPM test as compared with control. Similarly, in the hole-board test, both doses increased the number of head dips. There was a reduction on the sleeping latency with both doses and a prolongation of the pentobarbital-induced sleeping time with the dose of 25 mg/kg. In the tail suspension test, similar to imipramine (30 mg/kg), riparin III at the dose of 50 mg/kg presented a reduction in the immobility time. In the forced swimming test, both doses of riparin III decreased the immobility time. These results showed that riparin III potentiated the barbiturate-induced sleeping time and presented antidepressant- and anxiolytic-like effects. (C) 2004 Elsevier Inc. All rights reserved.
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