To test the effect of COX-2 inhibition on acute cystitis, mice were pretreated with SC-236 (Sigma) as previously described10 (link). The drug was solvated in 1% Tween 80 and mice received 100 µl drug, or buffer alone, per 20 g body weight by oral gavage. Mice were humanely euthanized at 24 h.p.i. with 107 c.f.u. UTI89 and bladder bacterial burden was determined.