GPT and obesity due to melanocortin 4 receptor deficiency: For lean NAFLD participants, the levels of blood pressure, FPG, HGB, HbA1c, TG, LDL-C, RBC, WBC, ALT, GGT, TP, ALB, urea and UA were lower than that in obesity/overweight NAFLD subjects, but higher than that in obesity/overweight and lean non-NAFLD subjects.