Media playback is unsupported on your device

'Significant step' in Alzheimer's disease DNA research

28 October 2013 Last updated at 09:45 GMT

Scientists from Wales have helped develop a clearer picture of what causes Alzheimer's disease after the largest ever analysis of patients' DNA.

It has been described as a "major breakthrough" in the understanding of the disease.

It is hoped that the research, jointly led by a team at Cardiff University, will pave the way for new treatments.

Prof Julie Williams, from Cardiff University, explained what the findings mean.

Alzheimer's insight from DNA study

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.