Fig. 4From: Electroacupuncture at acupoint ST 37(Shangjuxu) improves function of the enteric nervous system in a novel mouse constipation modelEffects on nNOS expression in immunohistochemical staining. Tissue with brown granular deposits indicate positive immunostaining (arrows) Scale bar: 40 μm, magnification: ×400). a, b, c: In jejunum; e, f, g: In ileum; i, j, k: In proximal colon; d, h, l: Comparison of the mean density of nNOS-positive expression, respectively. *P < 0.01 vs. Control group; #P < 0.05 vs. EA group, n = 5 for each groupBack to article page