Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2490-10-10/MediaObjects/12894_2009_Article_155_Fig4_HTML.jpg)
Effect of electrical stimulation (10 Hz, 1 min, 600 shocks) on ATP (A) and NO (B) release in intact and swabbed bladder strips. Both ATP and NO release was significantly increased over the baseline in Intact strips (*P < 0.05). In swabbed preparations the ATP release was not significantly different from baseline (P > 0.05), while NO release was still significantly elevated (*P < 0.05). The release of NO was not affected by swabbing (P > 0.2)