Scientists have detected subtle changes that may make the bowel more vulnerable to tumor development. One of the mechanisms controlling gene activity is the "epigenetic code," a set of chemical tags attached to the DNA molecule. Changes in the epigenetic code may begin to occur in apparently normal tissues, and the scientists are investigating whether diet could control these changes and delay or reverse the onset of cancer.
AP - Sudanese President Omar al-Bashir attended a summit of African leaders in Turkey on Tuesday in his first trip abroad since an international court indicted him on genocide charges last month.
Reuters - Leaders of Pakistan's coalition
government set about tackling pressing economic and security
problems on Tuesday as a bomb at a hospital in a northwestern
town killed 20 people.
