New test can predict cancer up to 13 years before disease develops - with 100 per cent accuracy
New test can predict cancer up to 13 years before disease develops People who develop cancer have shorter telomeres, the caps at the end of chromosomes which protect the DNA By Sarah Knapton, Science Editor 12:00AM BST 01 May 2015 A new test which can predict with 100 per cent accuracy whether a person will develop cancer up to 13 years in the future, has been devised by scientists. Harvard and Northwestern University discovered that tiny but significant changes are already happening in the body more than a decade before cancer is diagnosed. They found that the protective caps on the ends of chromosomes, which prevent DNA damage, had significantly more wear and tear in people who went on to develop cancer. In fact, they looked like they belonged to a person who was 15 years older. Those caps, known as telomeres, were much shorter than they should be and continued to get shorter until around four years before the cancer developed, when they suddenly stopped ...