GPT and metabolic dysfunction-associated steatotic liver disease: Furthermore, we detected that the low dose of PbAc, MWCNTs or MWCNTs + PbAc did not significantly change the serum levels of ALT, AST and ALP in control mice (Figure 3E), while combined administration of MWCNTs and PbAc resulted in more significant decreases in the serum levels of ALT, AST and ALP than single administration of PbAc or MWCNTs in NAFLD mice (Figure 3F), indicating that combined administration of MWCNTs and PbAc significantly damaged the liver function in NAFLD mice.