Furthermore, the cathelicidin-related antimicrobial peptide (CRAMP) and β-defensin 1 (DEFB1) were less abundant in Hpa-Tg mice compared with WT mice (Fig. 2j), which is consistent with previous work demonstrating that aggravated inflammation decreased the expression of antimicrobial peptides in AP, contributing to the gut microbiota changes [26]. This evidence concerns the gene CAMP and alkaline phosphatase measurement.