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Figure 3


Fig. 3. Effects of K+ channel inhibitors 4-aminopyridine (4-AP; 100 µmol l-1; N=4), apamin (APA,100 nmol l-1; N=4), charybdotoxin (CTX; 50 nmol l-1; N=4) and APA and CTX in combination (N=4) on a 10 µmol l-1 carbachol contraction (left) or on a 1 mmol l-1 H2S (as Na2S)-induced relaxation of a 10 µmol l-1 carbachol prestimulated bladder (right); all controls, N=8. Values are means ± s.e.m. The inhibitors had no significant effect on either the CARB contraction or the H2S relaxation.