Fig. 7. Changes in pHi (expressed as pHi) (A) and in [Ca²⁺]_i (expressed as % mean of basal values) (B) of trout hepatocytes following addition of 30 mmol l^–1 Na-propionate. pHi measurements were performed using Ca²⁺-containing medium, Ca²⁺-free medium and Ca²⁺-free medium after incubation of cells with BAPTA-AM, while [Ca²⁺]_i measurements were performed using Ca²⁺-containing and Ca²⁺-free media. Data are means ± s.e.m. of 33–51 cells from three independent preparations in A and 36–43 cells from four independent preparations in B.