Effect of SCI on bladder-traced NG neurons. The graph demonstrates that, out of the total percentage of either P2X3 or IB4 subsets after injury, more than one-half of the neurons were traced from bladder. Bladder innervating neurons in the P2X3+ subset represent 32.8 ± 1.1%, while, in the IB4+ subset, they represent 42.6 ± 5.1%. n = 3 rats and 6 ganglia.