A father from Cambridge has helped launch a clinical trial into a drug which could prevent both his sons developing a serious genetic illness they are carrying.
Black Bone disease progresses during adulthood, and causes brittle bones and heart disease. Dr Nick Sireau gave up work four years ago to concentrate on finding a drug to stop its progress.
Click below to watch Matthew Hudson's report.
More top news
Five ducklings had to be rescued after they got stuck on a melting road in Norfolk.
More than 140,000 spectators are expected at the British Grand Prix on Sunday, with many more over the course of the weekend.
Dry with sunny periods, and very warm or hot inland. Cooler near coasts. Maximum Temperature 28 °C.