氧化应激是由于细胞损伤引起的自由基增多，而机体的清除能力却不足所导致的。
Oxidative stress is an imbalance between the production of cell-damaging free radicals and the body's ability to neutralize them.
它们是超动力形式的氧，可能引起组织的氧化损伤而导致疾病——例如触发导致动脉堵塞的炎症过程。
They are a supercharged form of oxygen, which can cause oxidative tissue damage leading to disease - for example, triggering the inflammation process that causes clogged arteries.
HCY在生理浓度铜离子存在下可能通过氧化应激损伤的机制而导致血管内皮细胞凋亡。
The apoptosis in vascular endothelial cells induced by HCY plus copper was involved in the mechanism of oxidative stress-mediated injury.
而总抗氧化能力(TAC)水平和DNA损伤方面未显示与对照样本有明显差异。
Levels of TAC and DNA damage showed no significant differences from the unexposed group.
结论：铅可能通过增强脑组织脂质过氧化过程而致发育期神经系统的损伤。
Conclusion: Lead may injure the developmental nerve system by enhancing the lipid peroxidation. Lead has developmental neurotoxicity.
而氧化性损伤可能是DNA损伤的机制之一。
Oxidative damage might be one of the main mechanisms of DNA damages.
就乙酰氨基酚如何作为一种毒性代谢产物而导致肝脏损伤的机制而言，是因为咖啡因抑制了肝内抗氧化剂，从而才增强了对乙酰氨基酚的毒性。
In terms of how acetaminophen causes damage and being a toxic metabolite, the things that would promote acetaminophen toxicity are things that inhibit antioxidants in the liver.
氧损伤也称为“氧化损伤”。可以通过抗氧化剂而减少。
Oxygen damage is also called "oxidative damage" and can be reduced by antioxidants.
表明低剂量的样品白酒可增强小鼠及果蝇的抗氧化能力，而高剂量则促进其氧化损伤。
All the results showed that the toxicity of famous liquor was smaller than alcohol and famous liquor under low dose could depress the oxidative damage in mice and drosophila.
而酒精代谢过程中所产生的自由基，其引起的脂质过氧化反应是导致酒精性肝损伤的重要因素之一。
Then, the free radical from the alcohol metabolism is one of the important factors that cause lipid peroxidation and alcoholic liver injury.
过氧化氢酶对羟自由基所致DNA损伤的抑制作用显著，而超氧化物歧化酶无明显抑制作用。
The DNA damage induced by hydroxyl radicals was completely prevented by catalase, whereas superoxide dismutase was much less effective.
过氧化氢酶对羟自由基所致DNA损伤的抑制作用显著，而超氧化物歧化酶无明显抑制作用。
The DNA damage induced by hydroxyl radicals was completely prevented by catalase, whereas superoxide dismutase was much less effective.
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