Moxibustion activates mast cell degranulation at the ST25 in rats with colitis

Figure 2 Results of the mast cells toluidine blue-improved method at ST25 (× 400). Normal group (A), model group (B), moxibustion group (C), moxibustion plus disodium cromoglycate group (D) and moxibustion plus normal saline group (E). Arrow 1: Intact mast cells (MC); Arrow 2: Degranulated MC. MC plasma stains purple, and nucleus is shown as dark blue, scattering in subcutaneous loose connective tissues, or gathering in a group or lining up; cell shape appears round, oval, shuttle-like, erose; small cells had little plasma and a clear shape, large cells had more plasma and an unclear shape.