Non-pretrained, randomized adult rats were tested in a panic-inducing model of passive avoidance. Intravenous treatment with alkalinizing agents (sodium lactate 0.5 M, 0.5 ml/100 g b.wt., or NaHCO3, 0.5 mEq/100 g b.wt.), but not with a hypocalcemic dose of EDTA (75 mg/kg) 3 min before testing, significantly increased panic behavior. These data may support the hypothesis that panic attacks are due to alkalosis and not to lactate-induced hypocalcemia.

Acute alkalosis, but not acute hypocalcemia, increases panic behavior in an animal model / Di Lorenzo, R; Bernardi, Mara; Genedani, Susanna; Zirilli, E; Grossi, G; Guaraldi, Gp; Bertolini, Alfio. - In: PHYSIOLOGY & BEHAVIOR. - ISSN 0031-9384. - STAMPA. - 41(1987), pp. 357-360.

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