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Bad news is that heart muscle doesn't rebuild, like how our body muscles do. But a doctor can ensure how much of our fear is right.


Funny enough, one of the original MRNA treatments developed my Moderna was something that would temporarily activate stem cell generation around heart tissue. Sounds like in testing, the mice that got the treatment after having a heart attack were much less likely to have subsequent heart attacks.

https://www.youtube.com/watch?v=T4-DMKNT7xI


I was going to ask if anyone knew how they found mice for these studies. Do they choose mice they have on hand that naturally have had heart attacks? Would those mice be involved in other studies too?

But I ended up googling it and sort of wish I didn’t ask the question.

https://www.theawl.com/2016/04/if-you-give-a-mouse-a-heart-a...


Hopefully one day we'll have a perfect digital twin of the human body and can test drugs like this without harming animals..


But that means it's almost impossible to get heart cancer, so at least we've got that going for us




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