With two breakthroughs in the last month, researchers in York...

... genes which act to prevent cancer cells spreading are turned off. By treating the cells with a chemical made from Vitamin A, the genes can be turned back on again, slowing the growth and spread of cancer. Vitamin A is present in our diet in things ...

http://www.yorkpress.co.uk/features/features/10371029.On_the_edge_of_knowledge/?ref=mmsp