TBX21 and fatty liver disease: Moreover, lipid droplet morphologies were similar between ND Rag1−/− IRI and ND Rag1-Tbet DKO mice (p= not significant; ns) as well as between HFD Rag1−/− IRI and HFD Rag1-Tbet DKO mice (p=ns), confirming comparable levels of hepatic steatosis between both mouse strains under HFD-IRI conditions at a microscopic level (Figures 2C, D).