Figure 2.

Effects of P_i. A–B, Representative traces of [Ca²⁺]_m transients (left) and mean data of time to 50% decay (D50) with or without 2 mmol/L P_i in cells with 5 (A) or 15 mmol/L Na⁺ (B). C–D, Representative tracing of [Ca²⁺]_m transient recorded at the beginning (101 seconds) and the end (199 seconds) of stimulation with 5 (C) or 15 mmol/L Na⁺ (D) in the presence of 2 mmol/L P_i. E–H, Recordings of rhod-2 (E–F) and NADH fluorescence (G–H) in cells with 5 or 15 mmol/L Na⁺