GPT and obesity due to melanocortin 4 receptor deficiency: Comparing the variables between pre-school closing period and school closing period in patients suffering from obesity revealed significant differences in variables related to metabolism such as body weight (67.2 ± 23.8 vs. 71.1 ± 24.2, p < 0.001), body weight z-score (2.0 ± 0.8 vs. 2.2 ± 0.7, p < 0.001), BMI (26.7 ± 4.6 vs. 27.7 ± 4.6, p < 0.001), BMI z-score (1.9 ± 0.5 vs. 2.0 ± 0.4, p < 0.001), AST (35.2 ± 29.0 vs. 42.7 ± 33.8, p = 0.0085), ALT (53.0 ± 32.8 vs. 74.7 ± 41.8, p < 0.001).