Table 2. Effect of Nifedipine and Tetrodotoxin on Tetracaine-induced Cell Death
PC12 cells were treated with or without 5 μm nifedipine or 0.5 mm tetrodotoxin for 30 min and then challenged with or without 1 mm tetracaine for 4 h. Lactic dehydrogenase activity released in the media was analyzed. Data shown are mean ± SD from two different experiments, each performed in triplicate.
*P < 0.0001 versus control.