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  1 - Evaluation the Role of GABAA and GABAB Receptors in Anxiety-like Behaviors Caused by Lipopolysaccharides in the Dark and Light Box (LDB) Test in Male Mice
  Masoumeh Alishahi Maryam Bananej Jalal Solati Ramin Hajikhani Mostafa Ghaderic
  Thegabaergic system is considered as the anti-anxiety system in the brain. The aim of this study was to investigate the role of GABAA and GABAB receptors in anxiety-like behaviors caused by lipopolysaccharides in male mice. In this test,mice were injected with lipopolys More

  Thegabaergic system is considered as the anti-anxiety system in the brain. The aim of this study was to investigate the role of GABAA and GABAB receptors in anxiety-like behaviors caused by lipopolysaccharides in male mice. In this test,mice were injected with lipopolysaccharide (LPS) (0.2 mg/kg), then injected with either muscimol (0.05, 0.1 or 0.2 µg/mouse), bicuculline (0.25, 0.5 or1 µg/mouse), baclofen (1, 2 or 4 µg/mouse) or CGP (0.2, 0.4 or 0.8 µg/mouse) 2 hours later and received intraventricular Celebrex. Five minutes after intraventricular injection, a dark and light box test was performed. The results of this study showed that musimol significantly reduced anxiety-like behavior in the LDB test (p < 0.05). The results of this study showed that musimol significantly reduced anxiety-like behavior in the LDB test (p < 0.05). However, the administration of musimol and LPS did not significantly change the animal’s anxiety-like behavior (p ≥ 0.05). Different doses of bioculin and LPS significantly increased the anxiety-like behavior in the LDB test (p < 0.05). Baclofen and CGP alone and with LPS did not significantly change the animal’s anxiety-like behavior on the LDB test (p ≥ 0.05). Celebrex injection after LPS relieved the anxiety-like behavior caused by LPS injection. In general, it can be claimed that anxiety-like behaviors in animals receiving LPS may be due to inhibition of GABAA and GABAB receptors and increase in the level of inflammatory factors in brain tissue. Manuscript profile