玉米蜂花粉对大鼠体内抗氧化能力的影响

选用5月龄Wistar健康大鼠24只,按性别、体重随机分成对照组和花粉组,喂养10周。结果表明,花粉组大鼠血清和肝脏组织中MDA值分别为5.73±022nmol/ml和0.1951±0.0049nmol/mg蛋白),显著低于正常对照组(8.23±0.21/3mol/ml和0.2497±0.0083nmol/mg蛋白),(P<0.05);而红细胞和肝脏组织中SOD、Se-GSH—Px活性和GSH含量均明显高于对照组;且花粉组大鼠心肌脂褐质含量明显低于对照组,血液中碘含量两组之间无显著性差异。提示:玉米蜂花粉可以提高大鼠机体的抗氧化能力,抑制脂质过氧化作用的发生。

THE EFFECT OF ZEA POLLINIUM ON ANTIOXIDATION IN VIVO IN RATS

The antioxidation of Zea pollinium in rats was studied. Twenty four 5-month old Wistar rats were selected, and randomly divided into control group (basal diet) and bee pollen group (diet containing 10% bee pollen). After feeding with the diet for 10 weeks, the results showed that the MDA levels in serum and liver were 5.73 ±0.22nmol/ml and 0.1951 ± 0.0049nmol/mg protain respectively in the bee pollen group, obviously lower than those of the control group (8.23±0.21nmol/ml and 0.2497±0.0083nmol/mg protein) (p<0.05); the SOD activities in RBC and liver, the GSH-Px activities as well as the GSH levels in blood and liver were significantly increased; the lipofuscin in heart was decreased. In addition, the whole blood selenium did not change as compared with that of the control group. It was suggested that Zea pollinium could improve the activities of antioxidant in vivo, and inhibit the occurrence of lipid peroxidation.