Could protecting our proteins help us prevent ageing?
Existing theories on the chemistry of ageing are being turned on their head, thanks in particular to a small ultra-resistant bacterium capable of “coming back to life” after extremely harmful attacks. This is Deinococcus radiodurans, one of the most resistant bacteria known to date, which lives in arid environments such as desert sand. It survives in canned meat after the “shock” treatment of gamma radiation sterilisation. It can also overcome an irradiation dose 5,000 times greater than the lethal dose for humans. Studies have shown that this bacterium survives even if its DNA is damaged and broken into several hundred fragments as