IL1B and colitis: When colitis was induced by DSS, Defa6‐Ogt KO mice receiving the dysbiotic microbiota derived from Vil‐Ogt KO mice had a tendency to lose more body weight (Fig 6J), showed more severe colitis (Fig 6K), and expressed higher levels of inflammatory genes including Ifng and Il1b (Fig 6L), compared to control mice receiving the same FMT.