Well, given the title I was expecting to be snorting dismissively, but this actually does seem interesting and I hope there's followup work. In particular, the fact that this was a group investigating C60 toxicity makes me less immediately suspicious of fudging, but then again if their funding were coming from someone making something with C60 in it they might have subconsciously treated the C60 rats better.

What I'd really like to see is a duplication with a larger sample size and some sort of blind setup with the people caring for the rats. And even then, there are good reasons to expect that this won't carry over to humans, given that humans already live so long for an animal of our body size.