Table 2.

Effect of TTX and tefluthrin on the action potential parameters. Only sodium channel parameters are shown, the other ion-channel parameters did not change. Data shown as mean ± SEM. Bold: statistically significant (p > 0.05) change.

			Activation				Inactivation
Na	g	VRev	Z	V1/2	ξ	A	z	V1/2	ξ	A
Contr	317±84	60	6±0.04	−6.9±0.3	−0.38±0.03	0.59±0.08	−7.5±0.04	−64±0.4	0.43±0.03	1.5±0.7
TTX	31±18	60	6±0.01	−6.9±0.3	−0.40±0.03	0.83±0.17	−7.5±0.1	−64±0.4	0.42±0.02	3.0±0.9
% Chg	−89±6	0	−0.6±0.6	0±0.004	5.9±5.2	41±25.5	0±0.002	0±0.001	−0.68±0.7	331±301
Contr	227±106	60	5.6±0.4	−46.7±0.2	−0.38±0	0.7±0.12	−7.4±0.1	−60±2.6	0.48±0.01	1.3±0.22
Tefl	44.6±11	60	5.6±0.4	−54±2.3	−0.36±0.02	1.5±0.6	−7.8±0.3	−69±2.1	0.47±0.04	39±18
% Chg	−71±9	0	1±1	17±5	−4±4.2	86±66	6±5.71	15±2.2	−2±7.9	4410±2974