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Σάββατο 1 Απριλίου 2017

Antipsychotic activity of embelin isolated from Embelia ribes: A preliminary study

Publication date: June 2017
Source:Biomedicine & Pharmacotherapy, Volume 90
Author(s): Sharanbasappa Durg, Naveen Kumar B., Ravichandra Vandal, Shivsharan B. Dhadde, B.S. Thippeswamy, Veeresh P. Veerapur, Shrishailappa Badami
BackgroundEmbelia ribes is claimed in Indian traditional medical practice to be useful in the treatment of nervous diseases. Embelin, an alkyl substituted hydroxy benzoquinone, is a major active constituent of E. ribes. The present preliminary study was intended to evaluate antipsychotic activity of embelin against apomorphine-induced climbing behaviour in mice and stereotyped behaviour in rats.MethodsTwo doses of embelin (5 and 10mg/kg) were administered once daily for 15days before exposure to apomorphine. On the concluding day of pre-treatment, after apomorphine-injection, the rodents were assessed for climbing and stereotyped behaviours according to the published scoring system. Thereafter, neurotransmitters (dopamine, noradrenaline and serotonin) levels were estimated in rodent brains.ResultsEmbelin pre-treatment significantly inhibited apomorphine-induced climbing and stereotyped behaviours in mice and rats, respectively. Further, embelin also statistically reversed elevated levels of dopamine, noradrenaline and serotonin neurotransmitters in the brain of mice and rats. Embelin showed more significant results at high dose (10mg/kg) than low dose (5mg/kg) in both the tested models.ConclusionConsidering the present pharmacological profile of embelin, it is suggested that embelin possesses antipsychotic activity in the treatment of psychotic disorders. However, further research is warranted for evaluating its exact mechanism of action.



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