Table 2.

Effect of R-568 on basal I_sc in the colon

	Isc, μA/cm2
	Absence of TTX		Presence of TTX
	Proximal	Distal	Proximal	Distal
Control	31 ± 5 (5)	30 ± 3 (7)	16 ± 4 (7)†	12 ± 3 (7)‡
R-568	12 ± 2 (5)*	9 ± 1 (7)*	15 ± 4 (7)nsNS	11 ± 3 (7)nsNS

Data shown are means ± SE (n).

^*P < 0.01 vs. control; ns, P > 0.05 vs. control.

^‡P < 0.01 vs. absence of TTX;

^†P < 0.05 vs. absence of TTX; NS, P > 0.05 vs. absence of TTX.