Firstly, different concentrations of lipopolysaccharide (LPS) were used to induce the inflammatory response of porcine small intestinal epithelial cells (ipec-j2 cells), and the effect of LPS on cell viability was detected to find out the LPS concentration suitable for the establishment of ipec-j2 cell inflammatory model, so as to prepare for the following experiments. The results show that 50 μ g / ml is the optimal concentration of LPS<br>
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