Table 2.

Effect of CTX on activation kinetics of I_Na as measured by time-to-peak I_Na

	n	Control	1	3	10
rNav1.2	7	0.62±0.06	0.52±0.05*
	3	0.61±0.08		0.53±0.10*
	3	0.41±0.02			0.35±0.02*
rNav1.4	6	0.56±0.04	0.55±0.04
	3	0.39±0.04		0.33±0.04**
	3	0.49±0.07			0.41±0.07
rNav1.5	6	0.71±0.09	0.71±0.07
	3	0.46±0.02		0.39±0.01*
	3	0.51±0.05			0.45±0.03

Time-to-peak I_Na (ms) is given for the control (no CTX) and the indicated concentrations of CTX (μmol l⁻¹). CTX accelerated time-to-peak I_Na most markedly in isoform rNa_v 1.2, that is, by 0.1 ms.

^*P<0.05 vs control,

^**P<0.01 vs control.