The overexpression of major antioxidant enzymes does not extend the lifespan of mice.

The overexpression of major antioxidant enzymes does not extend the lifespan of mice.
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DOI:
10.1111/j.1474-9726.2008.00449.x
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发表时间:
2009-02
期刊:
影响因子:
7.8
通讯作者:
Richardson A
Richardson A
中科院分区:
生物学1区
文献类型:
--
作者:
Pérez VI;Van Remmen H;Bokov A;Epstein CJ;Vijg J;Richardson A

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我们评估了过度表达抗氧化酶对过度表达铜锌超氧化物歧化酶 (CuZnSOD)、过氧化氢酶或 CuZnSOD 和过氧化氢酶或 CuZnSOD 和锰超氧化物歧化酶 (MnSOD) 组合的转基因小鼠寿命的影响。我们的结果表明,这些主要抗氧化酶的过度表达(已知这些酶可以清除细胞质和线粒体区室中的超氧化物和过氧化氢)不足以延长小鼠的寿命。
We evaluated the effect of overexpressing antioxidant enzymes on the lifespans of transgenic mice that overexpress copper zinc superoxide dismutase (CuZnSOD), catalase, or combinations of either CuZnSOD and catalase or CuZnSOD and manganese superoxide dismutase (MnSOD). Our results show that the overexpression of these major antioxidant enzymes, which are known to scavenge superoxide and hydrogen peroxide in the cytosolic and mitochondrial compartments, is insufficient to extend lifespan in mice.
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