A mother from Oxford has had a successful operation so she can donate a kidney to save her son.

Diana Berry, 52, a barmaid at Summertown's Grove House Club, could not donate an organ directly to son Matt Trinder, 24, because their blood types were not compatible.

They signed up to a pioneering exchange programme which allowed her to donate an organ to another person in need of a kidney, whose friend or relative then donates one to Matt.

The operation took place on Friday, making Mrs Berry and her son the first people from the county to take part in the scheme.

The scheme was only made possible two years ago after laws were passed allowing live donations from strangers.

Mr Trinder, 24, who grew up in Abingdon, has needed dialysis because he suffers from a disease called IgA Nephropathy, a kidney disorder that occurs when IgA — a protein that helps the body fight infections — settles in the kidneys.