GPT and obesity due to melanocortin 4 receptor deficiency: The interactions were similar with severe overweight (BMI > 27.5 kg/m2) and with obesity (BMI > 30 kg/m2) (Pinteraction = 0.004 and 0.028, for fasting triglyceride levels, and Pinteraction = 0.002 and 0.004 for ALT levels, respectively).