Fig. 3
Effects of B4 on pro-inflammatory cytokines. a Experimental design of the bacterial pneumonia mouse model. The levels of TNF-α and IL-6 (b, d, e, g, h), IL-1β (f), and MPO (i) levels in serum, BALF and lung tissue were determined by ELISA kits and MPO kit. c The lung tissue inflammatory changes in each group were assessed by H&E staining of the lung slices and examined. Scale bar 50 μm. Value represents mean ± SD (n = 10), #p < 0.05, ###p < 0.001 vs. control group, *p < 0.05, **p < 0.01, ***p < 0.001 vs. KP group