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对公共汽车驾驶员与售票员外周血红细胞超氧化物歧化酶（ＳＯＤ）活性、血浆丙二醛（ＭＤＡ）含量、红细胞内谷胱甘肽（ＧＳＨ）含量和全血谷胱甘肽过氧化物酶（ＧＳＨＰｘ）活性进行测定。结果表明年龄与４项指标的变化无明显联系，红细胞ＳＯＤ活性和血浆ＭＤＡ含量与工龄有一定联系，ＧＳＨ含量和ＧＳＨＰｘ活性也有随工龄增加而下降的趋势。结果提示该职业对从业人员脂质过氧化水平有明显影响。
Peripheral blood erythrocyte superoxide dismutase (SOD) activity, plasma malondialdehyde (MDA) content, erythrocyte glutathione (GSH) content and total serum glutathione peroxidase (GSH Px) activity was measured. The results showed that there was no significant correlation between age and the changes of 4 indexes. The SOD activity of erythrocytes and plasma MDA content had a certain relationship with the length of service. The activity of GSH and GSH-Px also tended to decrease with the increase of working age. The results suggest that this occupation has a significant impact on the level of lipid peroxidation among practitioners.