In FD patients, there was a significant inverse correlation between symptom scores and serum NO level ( r=-0 827,P =0 0437).

• FD患者NO水平较正常人显著下降 (P<0 0 1) ；FD患者症状积分与血清NO水平负相关 (r =-0 82 7；P =0 0 4 37) ;