FINALLY FOUND ONE GOOD STUDY
With regards to supercentenarian deaths, it is said it is not the usual causes of cancer and normal heart disease that do them in, but something called Senile Cardiac TTR-Amyloidosis
The most likely cause of death of Supercentenarians is called Senile Cardiac TTR-Amyloidosis (Diagnosis by Autopsy [6 of 10 in all of history] and not by what is written on Death Certificates).-link
Hey, Wait a minute! Consider this ! Take a look at recent lab mouse results in regard to removing senescent cells, sharing a young blood supply or improving telomere length. There appears to be some evidence that the context consisting of older cells may improve or even rejuvenate!