To acquire serum, the blood of mice was collected using the capillary tube from the ophthalmic venous plexus and placed at room temperature for one hour before centrifugation at 3000 rpm, 4 °C for 15 min. For the colitis model in vitro, the supernatant of cells in different groups was collected for detection. The inflammatory factors (TNFa and IL6) were examined following the instructions of the ELISA Kits (Liankebio, Hangzhou, China).
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