Fig. 2.

Social stress (2 wk) increases nerve growth factor (NGF) and histamine protein in the urinary bladder of mice. A: NGF protein expression was unchanged in stressed bladders compared with control bladders. NGF protein was significantly (*P ≤ 0.01) elevated in increased stressed bladders compared with control and stressed bladders (with tube implantation). B: histamine protein expression was significantly increased in both stressed and increased stressed bladders compared with control bladders (with tube implantation, *P ≤ 0.01). C: NGF was unchanged in stressed mice and significantly elevated (*P ≤ 0.01) in increased stressed mice compared with control mice (without tube implantation).