Research reported in this week's JAMA looked at the global DNA methylation pattern of 111 Icelandic people and 126 Utahan people at different points in time. The researchers saw that the DNA methylation patterns changed over time -- in both groups, about 10 percent of individuals had more than 20 percent methylation change over time. "The question of whether DNA methylation changes over a lifetime hadn't been asked before," says senior author Andrew Feinberg to Nature. "A fairly large number of people thought it didn't change."
Just One More Thing to Worry About
Jun 25, 2008