Effects of the Persian Carum copticum fruit extracts on morphine withdrawal syndrome in mice

A Ghannadi, V Hajhashemi, R Abrishami

Abstract


Carum copticum from Apiaceae family has several biological effects including analgesic, anti-inflammatory, anxiolytic and antispasmodic activities. This study was designed to evaluate its effect on suppression of naloxone-induced morphine withdrawal signs. Hydroalcoholic and polyphenolic extracts were prepared according to the standard methods. Male mice (25-30 g) were made dependent by subcutaneous injection of increasing doses (30-90 mg/kg) of morphine. Withdrawal syndrome was elicited by naloxone (5 mg/kg, i.p.) and number of jumpings and also presence of ptosis, hyperventilation, piloerection, tremor and diarrhea were evaluated during a 30 min period started immediately after naloxone injection. The hydroalcoholic extract at doses of 1 and 2g/kg and the polyphenolic extract at doses of 0.5, 1 and 2 g/kg significantly (P<0.05) inhibited jumpings. Both extracts inhibited tremor significantly (P<0.01). Also the maximum applied dose of the extracts significantly (P<0.05) reduced ptosis. These results clearly show that Carum copticum is effective in suppression of morphine withdrawal and further studies are needed to find out the responsible constituents and also the mechanism of their actions.  


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