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，会形成大量的超氧阴离子过氧化物，这细胞有剧毒。

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酶或超氧化物化酶；因此氧气他有毒害。

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，并释放超氧化物自己的蛋白酶，加剧事态发展。

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的氧化应激源，好吧， 所有这氧化应激源，在一定量内可能是好的。

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.

影响了一种名为NRF2的蛋白质，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酶、超氧化物化酶谷胱甘肽的生成指令。

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的一氧化氮，吧， 但是过多的一氧化氮也不好，过量的过氧化氢也不好， 过多的超氧也不好。