Fruit flies all aglow light the way to cancer prevention

A magnified, straight-on view of two fruit flies under ultraviolet light. The fly on the right has been exposed to oltipraz, a compound that activates a major cancer-prevention pathway, and thus glows green brightly; the fly on the left has not. The technology allows researchers to quickly determine whether the pathway, a major source of anti-oxidant activity in people, is on or off. Photo courtesy of Dirk Bohmann/University of Rochester Medical Center