GPT and obesity due to melanocortin 4 receptor deficiency: Basic laboratory tests performed in children with obesity were as follows (mean values ± SD): TSH: 2.28 ± 0.96 μIU/mL, FT4: 1.03 ± 0.14 ng/dL; cortisol: 99.9 ± 26.1 ng/mL; total cholesterol: 166.8 ± 19.4 mg/dL; fasting glycemia: 86.8 ± 6.4 mg/dL; glycemia measured 120 min after oral glucose administration: 106.5 ± 29.7 mg/dl; ALT: 24.2 ± 7.1 U/L; AST: 25.0 ± 5.0 U/L.