Fig. 2. Protective effect of ERJ in LPS-treated macrophages.

(A) Cell viability of macrophage cells treated with ERJ for 24 h. (B) Cell viability of macrophage cells pretreated with ERJ or RJ and followed by LPS treatment for 24 h. ERJ: enzyme-treated royal jelly, RJ: non-enzyme treated royal jelly. Data were expressed as the mean ± SEM (n=3). ^**p<0.01, ^***p<0.001, compared with Vehicle. ^##p<0.01, ^###p<0.001, compared with Control. ^$p<0.05, compared with RJ.