Involvement of Serotonergic System and Magnesium on Anxiolytic Effects of Pomegranate in Male Mice

  • Jahromy M
  • Shariatifar A
  • Samiee S
  • et al.
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The anxiolytic activities of Punica granatum L. fruit juice (PGFJ) in various validated animal models of anxiety and amnesia have been recently reported in mice. Similarly, anxiolytic-like activity of magnesium chloride has been exhibited in the elevated plus-maze test in mice, in some studies. Buspirone is an anxiolytic psychoactive drug with known effects on 5-HT1A receptors that its action is not related to benzodiazepines. The purpose of the present study was to examine interactions between PGFJ, magnesium (Mg) and buspirone as a partial agonist of 5-HT1A receptors in producing anxiolytic-like activity in the elevated plus maze in mice. The anxiolytic-like effect of PGFJ (5, 10 and 20 ml/kg, orally), buspirone (5 mg/kg, i.p), Mg (50 mg/kg, orally) and their interactions were evaluated after ten days’ treatment. PGFJ given at all doses induced an anxiolytic-like effect significantly increasing the percentage of the time spent in the open arms, and the percentage of the open arm entries, in a dose-dependent manner. Buspirone showed anxiolytic effect after ten days; however, its effect was roughly comparable to the effect of PGFJ 5 ml/kg. Buspirone in combination with PGFJ (5 ml/kg), did produce more effect compared to buspirone alone and nearly in the range of PGFJ 5 ml/kg response. Also, Mg induced an anxiolytic-like effect that was more than effects observed by buspirone 5 mg/kg. However, binary application of buspirone and Mg showed anxiolytic effects more than buspirone, alone. In another group, Mg in combination with PGFJ (5 ml/kg), produced more anxyolitic effects compared to either Mg or PEF alone. It can be concluded that Pomegranate anxyolitic-like effect is dependent on interactions with both GABAergic (related to Mg) and serotonergic (5-HT1A) systems.




Jahromy, M. H., Shariatifar, A., Samiee, S., Vaziri, M., Shahraki, M. B., & Dara, S. M. (2014). Involvement of Serotonergic System and Magnesium on Anxiolytic Effects of Pomegranate in Male Mice. World Journal of Neuroscience, 04(04), 293–298.

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