结论：稀土离子在较低浓度时都能抑制活性氧自由基的生成。较高浓度时，作用相反。

Conclusion: Lanthanide ions can inhibit the production of active oxygen free radicals at low concentration, but it turned out contrary at high concentration.

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结果表明， 不同器官组织中活性氧与抗超氧阴离子自由基含量各异。

Results showed that content of ROS and ASAFR vary between different organs and tissues.

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