GPT and metabolic dysfunction-associated steatohepatitis: ALT levels had increased after feeding the NASH inducing diet but did not differ between WT and CD40fl/flCD11ccre mice (Fig. 6E), whereas AST levels were lower in CD40fl/flCD11ccre mice (19.02 ng/mL vs 16.57 ng/mL, unpaired t-test, p = 0.0879, Fig. 6F).