Methods: PCR and PAGE techniques were used to detect COMT gene polymorphism in patients with depression, and 100 healthy people were involved as controls.

• 方法：应用聚合酶链反应（PCR）及聚丙烯酰胺凝胶电泳(PAGE)方法，检测抑郁症患者和健康志愿者COMT基因多态性分布。