Fig. 6.

Effect of bicuculline and MeHg on relative fluo4 fluorescence intensity (F/F₀) of CGCs by histologic layer. Untreated controls (°, n = 5) and 20 M MeHg alone (●, n = 5) are the same as in Fig. 3. Bicuculline pulses (arrows, 10 μM) with 20 μM MeHg (▪, n = 4) were compared with bicuculline alone (□, n = 3) and MeHg alone. Significant differences are indicated from bicuculline control (*) and from MeHg alone (#) at that time point (P < 0.05). Intensity values are expressed in arbitrary units (mean ± S.E.M.).