遗传因素是十二指肠溃疡(DU)发生的先决条件,已得到大多数学者的公认。Rotter 提出遗传学分类法,它得到胃肠病学家和遗传学家良好的评价,他将 DU 分为胃蛋白酶原 A(PGA)增高和正常两型.在小儿尤其是少年,DU 是遗传异质性并且是常见型。该文观察93例2～15岁小儿和其双亲与近亲属67 Genetic factors is a prerequisite for the occurrence of duodenal ulcer (DU), has been recognized by most scholars. Rotter proposed a genetics taxonomy that was well commented by gastroenterologists and geneticists who divided DU into increased and normal type of pepsinogen A (PGA), and in children, especially juveniles, DU is a genetic variant Qualitative and common type. The article observed 93 cases of children aged 2-15 years and their parents and close relatives 67