After one hour occlusion of superior mesenteric artery in rats and just before releasing the clamp, SOD (superoxide dismutase), CAT(catalase), ALLO(allopurinal), SOD+CAT, SOD+ALLO, SOD+CAT+ALLO were administrated seperately to the animal.

• 夹闭大鼠肠系膜上动脉1h后松夹,于松夹前分别给予超氧化物歧化酶(superoxide dismutasv, SOD)、过氧化氢酶(catalase, CAT)、别嘌呤醇(allopurinol, ALLO)、SOD+CAT、SOD+ALLO和SOD+CAT+ALLO。