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How are alzeihmer tests done on rats?


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Well, actually, they'd tell by cutting up its brain (Alzheimers is associated with distinctive plaque structures in the brain). That's why rats are so useful - they progress through the diseases fast (due to short lifespan), can be reared in controlled identical environments, can be as close to genetically identical as possible, and, most importantly, can be killed in order to perform more invasive tests. None of these are possible with humans.

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