At the last follow-up, laboratory parameters including serum sodium (141.4 mmol/L), potassium (4.06 mmol/L), basal cortisol (5.72 μg/dL), and ACTH (19.9 pg/mL) had normalized, accompanied by a complete resolution of fatigue and anorexia. The gene discussed is POMC; the disease is Anorexia.