Regulation of NGF, TrkA, P75NTR, BDNF and TrkB (A–E) transcript levels in littermate wildtype (WT) and in mice with chronic urothelial NGF overexpression (NGF-OE) in S1 DRG with or without cyclophosphamide (CYP) treatment of varying duration (4 hours (h), 48 h, chronic). Relative expression of the S1 receptor transcripts are expressed as a percentage of WT S1 DRG and normalized to the relative expression of the housekeeping gene, 18S. A: NGF mRNA expression. B: TrkA mRNA expression. C: P75NTR mRNA expression. D: BDNF mRNA expression. E: TrkB mRNA expression. Samples size are n of 6–8; *, p ≤ 0.05 versus control; #, p ≤ 0.05 between WT and NGF-OE.