Figure 3.
(a) Mac-3 staining for activated macrophages in the mouse lungs at 12 and 24 weeks following lung irradiation (10Gy) with/without post-irradiation (within 1h) intratracheal administration of LPS. (b) Toluidine Blue staining for mast cells in the mouse lungs at 12 and 24 weeks following lung irradiation (10Gy) with/without post-irradiation (within 1h) intratracheal administration of LPS. (c) 8-OHdG staining (oxidative stress/DNA damage) in the mouse lungs at 12 and 24 weeks following lung irradiation (10Gy) with/without post-irradiation (within 1h) intratracheal administration of LPS. Percent positivity is the ratio of positive pixels/total number of positive and negative pixels in the tissue section (air spaces excluded). Each bar represents the mean (±SEM for 6 mice).