To examine the effect of citicoline in modulation of susceptibility to ECT-induced seizure [26 , 27 (link), 28 ], an electroconvulsive therapy apparatus (Model 7800, Ugo Basile, Camerio, Italy) was applied. Tonic convulsions of the hind extremities of mice were induced by passing alternating current (50 Hz, 50 mA and 0.2 s) via ear electrodes. In order to improve electrode contact, the electrodes were moistened with normal saline before being attached to the ears of mice. Electroshock induces a continuum of motor convulsions that are dependent on the intensity of the electrical stimulation current. The current used was predetermined before experimentation and was the current that caused hind limb extension in all mice in the trials. Data were expressed as the duration of tonic hind-limb extension (THE) after ECT.
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