The tissue samples of distal colon were collected from the inferior vena cava. After centrifugation, the sample was collected for the detection of inflammatory factors as previous report [9 (link)]. Total RNA was extracted according to RNA extraction kit (ER501-01, TransGen Biotech, China). Real-time quantitative PCR (RT-qPCR) was carried out according to SYBR Green Real-Time PCR MasterMix (AQ602-14, TransGen Biotech, China). The expression level of β-actin was used as reference. All primer sequences used in this study are given in Table 1.
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