The other way epithelial cells can necrose is via nephrotoxins, which are substances that tend to damage the epithelial tubular cells.

另一种上皮细胞死的方式由于毒素，这些物质往往小管上皮细胞。

In this case, what the danger would be is that the leg would lose circulation and necrose from a lack of oxygenation, not from infection.

在这种情况下，危险在于腿部会因缺氧而感染而失去循环和死。

The key distinction is that unstable angina means that the heart tissue is alive but ischemic or starving for oxygen, whereas myocardial infarction means that the areas of heart tissue have already begun to necrose or die.

两者最重要的差别稳定型心绞痛心脏活的，但缺血/缺氧；而心肌梗死意味着该区域心已发生死。

If they're embolizing and destroying the blood vessels to the tumor, that can actually cause the tumor to necrose, at which point it would start getting smaller, and fade, and then you could operate on it.

如果他们栓塞并破通向肿瘤的血管，这实际上会导致肿瘤死，此时它会开始变小并消退，然后你就可以对其进行手术。