Anaerobes, clostridia included, tend to lack the enzymes catalase or superoxide dismutase, so oxygen is actually toxic to them.

厌氧菌（包括梭菌）一般都缺乏过氧化氢或超氧化物歧化；因此氧气对他们有毒害。

Neutrophils arrive quickly at the scene, and often release superoxide and their own proteases, which contribute to the problem.

中性粒细胞迅速赶来，并释放超氧化物和它们蛋白，加剧展。

As oxygen becomes pressurized, it forms large amounts of superoxide anion (O2) and peroxide (H2O2), which are highly toxic to living cells.

当氧气被施加压力时，会形成大量超氧阴离子和过氧化物，这些对活细胞有剧毒。

So if you look at oxidative stressors like nitric oxide or superoxide or hydrogen peroxide, okay, so all of these oxidative stressors, they can be good in certain amounts.

因此， 如果你观察像一氧化氮、超氧化物或过氧化氢这样氧化应激源，好吧， 所有这些氧化应激源，在一定量内它们可能是好。

You need a certain amount of nitric oxide, right, in your body, but too much nitric oxide is bad, too much hydrogen peroxide bad, too much superoxide is bad.

你身体里需要一定量一氧化氮，对吧， 但是过多一氧化氮也不好，过量过氧化氢也不好， 过多超氧也不好。

It affects a protein called NRF2, which moves into the DNA, binds to the DNA, and then the DNA spits out the instructions for catalase, superoxide dismutase, and glutathione.

它影响了一种名为NRF2蛋白质，这种蛋白质会进入DNA，与DNA结合，然后DNA就会释放出过氧化氢、超氧化物歧化和谷胱甘肽生成指令。