Figure 1: Phagocytic activity of macrophages isolated from peritoneum, Peyer’s patches and spleen. Effects of TLR2 and TLR4 agonist and antagonist on phagocytic activity of macrophages from BALB/c mice stimulated previously with Lactobacillus casei CRL 431, 7 consecutive days of administration and probiotic fermented milk, 5 consecutive days of administration. (A) Peritoneal macrophages. (B) Peyer’s patches macrophages. (C) Spleen macrophages. a,b,c,dMeans values for peritoneum, Peyer’s patches and spleen macrophages without a common letter differ significantly (P<0.05). The error bars indicate standard deviations for 3 independent determinations per mouse.