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The Effect of Saliva Officinalis Hydroalcoholic Extract on Analgesic Effect of Morphine in Rat

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Author(s): A Arzi | A Sarkaki | N Aghel | Z Nazari | M Zarei Naserabadi

Journal: Scientific Medical Journal
ISSN 1026-8960

Volume: 10;
Issue: 5;
Start page: 505;
Date: 2011;
Original page

Keywords: Salvia Officinalis | Morphine | Pain | Tail-flick | Rat

ABSTRACT
Background and Objective: There are some reports in Iranian traditional medicine concerning the anti-inflammatory effect of Saliva Officinalis (SO). In the present study with the aim of decreasing analgesic dose of morphine, analgesic effect of different doses of SO hydroalcoholic extract alone and associated with morphine were evaluated by tail flick in rats. Subjects and Methods: Analgesic effects of SO hydroalcholic extract at doses of 200, 400, 600, 800 and 1000 mg/kg, i.p. were investigated. Then the influence of these doses associated with analgesic dose of morphine (2.5 mg/kg) was evaluated. Rats were placed into restrainer and then transferred into the tail flick apparatus with the intensity 55 CÂș and cut off time= 10 sec. In order to verify the role of opioid receptors on analgesic effect of SO extract, naloxone (1mg/kg, i.p.) was administered to one group of rats 15 min before receiving 800 mg/kg extract. Then, the data were analyzed by two-way ANOVA followed by LSD post hoc test and significant difference between groups was accepted with P
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