MPO and colitis: MPO activity (Fig. 3D), the TNF-α level (Fig. 3E), and the IL-1β level (Fig. 3F) in the colitis rats were significantly higher than those in the control rats, and these effects were attenuated by acupuncture treatments at a neurogenic spot (Neuro-Sp; Fig. 3), but not by stimulation of a nearby non-neurogenic site (Nearby site; Fig. 3).