C) Quantification of the total fluorescence from phagocytized pHrodo-labelled E. coli bioparticles and percentage of phagocyting cells in the CD11b+;GFP+ microglial population (n=3-5 animals per genotype and condition). Error bars represent Standard Error. Statistical significance: **P<0.01, ***P<0.001 by two-way ANOVA followed by Bonferroni' s multiple comparisons test. 