Protective effect of exercise in HFD-induced autophagy inhibition is abolished by liver-special overexpression of FABP1. A) GeneMania was used for FABP1 and autophagy-related protein interaction networks construction. B) CTSD activity was determined. C, D) Protein levels of ATP6V0D1 (C) and SQSTM1 (D) were quantified. *P < 0.05, **P < 0.01 vs. control, #P < 0.05, ##P < 0.01 vs. HFD, $P < 0.05, $$P < 0.01 vs. HFD + SE. (n = 6 for each group).