Additional file 1: Figure S1. MMP9 levels in spleen samples from SB-3CT-and placebo-treated E4FAD mice. Image depicts the full gel zymogram showing bands for proMMP9 in SB-3CT-treated and control (placebo-treated) animals. Lane 1: Naïve E4FAD mouse from another study; Lanes 2-6: SB-3CT-treated E4FAD mice; Lanes 7-10: Placebo-treated E4FAD mice; Lanes 11-14: Naïve E3FAD mice from another study.