Figure 5. Quercetin increases neurotrophic factor levels in the brain of db/db mice. Western blot analysis: (A) PSD93; (B) PSD95; (C) NGF; (D) BDNF. Quercetin-L: 35mg/kg/d; Quercetin-H: 70mg/kg/d. Data represent mean ± SEM (n = 10 per group). #p < 0.05, ##p < 0.01, ###p < 0.001vs. db/m; * p < 0.05, ** p < 0.01, *** p < 0.001 vs. db/db.