After E2 and NG treated, iNOS and eNOS positive were decreased, but no significant difference among E2 group, NG-treated group and the control group.

• 去卵巢后骨组织iNOS阳性较正常对照组增多，eNOS也有增高，雌激素、硝酸甘油治后iNOS、eNOS阳性反应较骨质疏松组减少、反应较弱，与正常对照组无明显差异。