CREB1 and chronic cystitis: In the chronic cystitis group, the cell profiles of p-CREB-IR were 33.9 ± 1.40 (L1), 36.82 ± 1.49 (L2), 38.15 ± 1.69 (L3), 31.79 ± 2.07 (L4), 33.25 ± 2.17 (L5), 41.94 ± 1.94 (L6), and 42.57 ± 2.99 (S1).