impairment of liver function was also alleviated inFbxw5 -HKO mice than in Fbxw5- Flox controls(Fig. 3E). Mechanistically, Fbxw5 -HKO inhibitedHFHC-induced Ask1 phosphorylation and downstreamJnk and p38 MAPK signaling in vivo (Fig.3F). Taken together, these results strongly suggestthat FBXW5 deficiency in hepatocytes rescuesHFHC diet–induced systemic insulin resistance,hepatic steatosis, inflammation, and fibrosis.