Figure 4.
Changed expression levels of hyperpolarization-activated cyclic nucleotide-gated (HCN)1 channel regulatory proteins in spinal cord injury (SCI) rat bladders. Using western blot analysis, the protein expression level was detected of (A) tetratricopeptide repeat-containing Rab8b-interacting protein (Trip8b), (B) filamin A, (C) neural precursor cell-expressed developmentally downregulated (Nedd)4-2 and (D) neuronal restrictive silencing factor (NRSF) in bladders of all three groups. (E) Compared with that in control and sham rat bladders, the protein expression levels of Trip8b, Nedd4-2 and NRSF were significantly increased, while the protein expression level of filamin A was significantly downregulated in SCI rat bladders (*P<0.05, **P<0.01 and ***P<0.001).