Europe South Asia Asia Pacific Americas Middle East Africa BBC Homepage World Service Education

Front Page



UK Politics







Talking Point

In Depth

On Air

Low Graphics

Monday, March 22, 1999 Published at 13:57 GMT


Angina treatment under development

Angina can be a prelude to a heart attack

Angina could soon be treated by using state-of-the-art gene therapy techniques.

Scientists from the University of Sheffield have developed a way of blasting DNA into cells using ultrasound.

Angina is a severe chest pain caused when the heart is starved of blood due to narrowed arteries.

In some cases it may precede a heart attack.

In many cases this is treated by inflating a tiny balloon in the artery to help clear the blockage responsible for the problem.

But even when the blockage is cleared, it returns in 40% of cases.

Scientists believe the new technique of putting therapeutic genes into large numbers of cells in the artery wall could prevent such relapses.

However, they warn that it will be very difficult to achieve.

Many pioneering gene therapy experiments have used viruses to carry genes into cells.

However, this technique raises concerns over safety.

Encouraging results

The Sheffield researchers are investigating an entirely new method of inserting genes, using ultrasound to "drive" them into the target cells. Early laboratory tests look encouraging.

Dr Christopher Newman, one of the team, said: "Gene therapy could be a great way of controlling the growth of cells in arteries to stop blockages returning.

"But the practical problem of getting tiny molecules of DNA into thousands of cells in an artery wall is huge.

"However, our techniques certainly show promise.

Hopefully this new phase of research will bring our aim one step nearer."

The work is being supported with a grant of more than 75,000 from the British Heart Foundation.

Professor Brian Pentecost, the foundation's medical director, said: "This is an exciting area of research and given that almost 1.5 million people in the UK have angina, the needs for better treatment are clear."

Advanced options | Search tips

Back to top | BBC News Home | BBC Homepage |

Health Contents

Background Briefings
Medical notes
Internet Links

British Heart Foundation


Heart Surgery Forum

The BBC is not responsible for the content of external internet sites.

In this section

Disability in depth

Spotlight: Bristol inquiry

Antibiotics: A fading wonder

Mental health: An overview

Alternative medicine: A growth industry

The meningitis files

Long-term care: A special report

Aids up close

From cradle to grave

NHS reforms: A guide

NHS Performance 1999

From Special Report
NHS in crisis: Special report

British Medical Association conference '99

Royal College of Nursing conference '99