Fig. 10: CB2R-mediated gut dysbiosis contributed to NAFLD development in association with tryptophan metabolites.

a Correlation network showed that gut dysbiosis in CB2R–/– mice was related to dysregulation of tryptophan metabolites, which were associated with parameters reflecting the severity of NAFLD including oil red positive area and body weight. b Correlation network between tryptophan metabolites and serum liver marker in CB2R–/– mice. n: (a, b), n = 4 per group.