Fig. 2. Effects of PLTX on histamine and PGE2 release after continuous exposure to 1.0 × 10–11 M PLTX for 2, 4 and 24 h (A) or to 1 h exposure to 1.0 × 10–11 M PLTX followed by 1, 3 and 23 h culture in toxin-free medium (B). Data are presented as ng mL–1 of each analyte released in cell media and are the mean ± SE of three independent experiments performed in duplicate. Statistical differences: *, p < 0.05; **, p < 0.01; ***, p < 0.001 (one-way ANOVA).
