Necrotic tissue is dead tissue and is no longer viable. It can cause infection or it just serves no purpose even with blood flow within the area. It’s impossible for it to be reversed. Why can’t it be though? What progress have scientists made with that?
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Why can’t we undo death? Entropy.
You know how if you carry a wire around in your backpack, like headphones or a long charging cable, it always ends up tangled? That’s because it’s always being moved and jostled along. There are maybe a hundred different ways that your headphones could be looped up nicely, but millions upon millions of formations in which they are tangled. So if the wire is jostled and allowed to move into any formation at all, probability dictates that it will be tangled.
Same thing with a living cell. If you take all the atoms of a cell, there are… uh… what comes after quadrillion… I don’t know, some absurdly large number of arrangements they can take. Of those arrangements, maybe a few million are arrangements that constitute a living cell. It takes energy for a cell to maintain its form. Once you cut the cell off from energy by removing the blood supply, it undergoes necrosis. It falls apart, gets “tangled up” in an arrangement that is no longer a cell. Because there are billions more ways to NOT be a cell than there are ways to be a cell. The only way to get a bit of matter to take the form of a cell is for it to come from another cell when it divides.
Therefore, the solution to necrotic tissue is to cut it out and allow the nearby cells to replicate themselves to replace their dead comrades. Because the only way to get cells from randomly assorted matter is for cells to get other cells to absorb energy and then replicate. And ultimately, that’s what necrosis is. Randomly assorted matter that used to be a cells.
It’s kind of like, if a bomb blows up a building, you don’t put the building pieces back together. No, you have to build a new building all over again. Sure, you can take bits from the old building and recycle them, but inevitably some portions will go to waste because they cannot be recycled, and some new un-recycled material will have to be added in.
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