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Table 1 Effect of calcium ion on [3H]taurine efflux in TR-TBT cells

From: Regulation of taurine transport at the blood-placental barrier by calcium ion, PKC activator and oxidative stress conditions

Condition Intracellular amount of [3H]taurine remained (% of time 0)
TR-TBT 18d-1 TR-TBT 18d-2
Control 100 ± 2 100 ± 3
Ca2+ free 72.1 ± 3.3 ** 75.7 ± 4.5 **
  1. Cells were incubated for 60 min at 37°C with ECF buffer containing [3H]taurine (28 nM). The cells were washed and then incubated with ECF buffer or Ca2+ free buffer for 30 min Under Ca2+ free condition, Ca2+ was replaced with Mg2+. Remaining of [3H]taurine in the cells was measured. Each value represents the mean ± SEM (n=3-4). ** p<0.01 significantly different from normal efflux.