Table 2.

IOD of AQP1 and AQP5 based on immunohistochemical staining

Treatment	AQP1	AQP5
control	741.3 ± 83.04	99.55 ± 10.05
RT 7 d	145.15 ± 20.13*	233.93 ± 29.42*
RT 14 d	229.64 ± 30.02*	131.56 ± 18.73**
RT 28 d	117.90 ± 20.42*	54.66 ± 8.03*

RT = radiation treatment, IOD = average integrated optical density, *P = 0.000 vs control, **P = 0.01 vs control.