I think it is very much more likely (based on my knowledge of biochemistry) that these effects are "extra percents". And extra percents in a human will have a multiplication factor, relative to rats. So we're still talking about relative values, percentages of percentages. Individual cells generally don't live long. So we're talking about extra lifetime of cells, less degradation of cells, more divisions of cells etc. All relative, all percentages, no absolutes.
As a non-scientist i want to say i fully respect your knowledge, but i work in an industry where i see basic assumptions made all the time that lead to negtive outcomes.
Im not questioning your knowledge in any way at all, but i am one to question assumptions, no matter how obvious they seem.
In theory (and once again forgive my lack of scientific knowledge), is it not possible to have an effect on a cell that would make it become "immortal", but without it being cancerous? If this effect had no negative outcomes to an organism and would remain in a healthy state for an undetermined period of time, and actually affected all cells in every organism, then this could be described as an absolute measurement across all organisms.
Now lets scale this down and say this effect only lasted 10 years (due to a set period of time before the positive effect becomes "depleted"). That too would be an absolute measurement.
I have read that c60 has powerful protection properties to organsims that are affected by gamma irradiation. Lets make an assumption and say that humans are protected 90%. It seems unwise to say that rats are only protected by 10% because they are smaller in size than humans.
It may seem obvious to you as a biochemist, but if i were studying the effects of c60, i would certainly be looking at this and trying to find out if c60 effects on cell longetivity were relative to cell life expectancy, or whether in fact it halted or slowed down an ageing process in all cells across all organisms at a similar rate (and then those effects depleted after a set period of time), thus leading to absolute positive measurements rather than relative ones.
Edited by MacD, 09 May 2013 - 10:01 PM.