Figure 5: Histopathological investigation of the radioprotective effects of hesperidin and radiation damage in the chronic phase (8 weeks). (A and a) Sham: Alveolar space, bronchioles and vascular bed are seen normal. (B and b) Radiotherapy: Acute mast cells infiltration is seen. (C and c) Hesperidin + radiotherapy: Infiltration of mast cells is seen as mild. Mast cells are seen dark blue points. The yellow frame shows a magnification of ×400. (Acid-fast staining, ABC: Magnification ×100, abc: Magnification ×400).