Abstract
Using the voltage-clamp technique combined with pressure injection, we have studied the action of pentylenetetrazole (PTZ) on identified Euhadra neurons by examining how the PTZ-induced changes in membrane properties are affected by an antibody against P70, a protein found in the experimentally-induced epileptogenic cortex of rats. Intracellular injection of anti-P70 antibody blocked the induction by PTZ; bursting activity with both of development of negative slope resistance region in the steady state I–V curve and a reduction in the delayed outward potassium current. These results suggest a novel mechanism of action for PTZ, involving intracellular protein(s) which react with anti-P70 antibody.
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