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The intestinal pathological changes in mice after L. monocytogenes infection. CK, control, orally challenge with PBS; LM, L. monocytogenes-infected group. (A) Histopathological changes in jejunum tissues were examined by hematoxylin eosin (HE) staining. (B) The concentration of LPS was measured in serum. (C) The concentration of TNF-α was measured in jejunum. Data is presented as mean ± SD. **P < 0.01. Data combined from at least three independent experiments unless otherwise stated.
