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Gene expression of pattern recognition receptors in the small intestines of mice. The gene expression levels of TLR2, TLR3, TLR4, and NOD2 were estimated by quantitative RT-PCR 2 h after administration of water, BSA, or LF. Data are means ± SEM for 5 to 10 animals from two independent experiments. Expression of TLR4 is shown on a logarithmic scale. *, P < 0.05.
