Objective: To explore whether the lower He points have relative specificity when treating its corresponding viscera disease and to observe the expression level of duodenal tissue TNF-α,high mobility protein B1 and Nuclear Factor-κB in duodenal ulcer model rats by electroacupuncture at Xiajuxu( ST39),Zusanli( ST36),Shangjuxu( ST37),Yanglingquan( GB34) and Chengjin( BL56). Methods: Seventy SD rats were randomly and divided into 7 groups: blank group,model group,Xiajuxu( ST39)group,Zusanli( ST36) group,Shangjuxu( ST37) group,Y...