PubMed · 2163359
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M Sargent. 1990. Panic disorder.. https://doi.org/10.1176/ps.41.6.621
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The antidepressant and anxiolytic effects of alprazolam were compared to those of desipramine, diazepam and buspirone in the forced swim test. Subchronic alprazolam induced a reduction in immobility similar to that of desipramine in 'non-pretested' and 'pretested' rats. In 'non-pretested' rats, the anti-immobility effect of desipramine was potentiated by diazepam and alprazolam, given before subchronic desipramine, while the anti-immobility effect of subchronic alprazolam was counteracted by diazepam. Diazepam, administered before the pretest session, counteracted, 24 h later, the anti-immobility effect of subchronic desipramine and alprazolam; alprazolam counteracted the anti-immobility effect of alprazolam but not of desipramine, buspirone at the highest doses tested potentiated the anti-immobility effect of subchronic desipramine but not of alprazolam. These data provide further support for the hypothesis that the GABA/benzodiazepine/Cl complex is directly implicated in the action of antidepressants and that systems other than the GABA system are involved in the antidepressant and anxiolytic effects of alprazolam.
The effects of alprazolam (ALP), a triazolobenzodiazepine with high affinity for "central" benzodiazepine receptors, were examined on several parameters of immune function in mice. NK, MLR, and mitogen-induced lymphocyte proliferation were all significantly increased 2 hr after administration of low doses (0.02-1.0 mg/kg) of ALP. Twenty four hr later, similar but less robust immunoenhancing effects were observed. These measures of immune functions were not affected by higher doses of ALP (5-10 mg/kg). The immunoenhancing effects of ALP did not appear related to serum corticosterone levels. These and other findings demonstrate that the GABA/benzodiazepine receptor chloride channel complex can bidirectionally modulate immune function.
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