The coefficient of the lung, thymus and thyroid were significant difference between the young and the middle age group, especially the difference of thymus coefficient was very significant.
中年组雌性和雄性的肺、胸腺和甲状腺与青年雌性和雄性的对应脏器系数有差异，其中胸腺脏器系数差异极显著。
SOD group was significantly better than U74389G group in coefficient of lung, SOD activity and apoptosis index, (P <0.01, P <0.05).
SOD组在缓解肺系数、降低SOD活性及抑制凋亡方面优于U74389G组（P <0.01，P <0.05）；
SOD group was significantly better than U74389G group in coefficient of lung, SOD activity and apoptosis index, (P <0.01, P <0.05).
SOD组在缓解肺系数、降低SOD活性及抑制凋亡方面优于U74389G组（P <0.01，P <0.05）；
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