Europe South Asia Asia Pacific Americas Middle East Africa BBC Homepage World Service Education
BBC Homepagelow graphics version | feedback | help
BBC News Online
 You are in: Health
Front Page 
World 
UK 
UK Politics 
Business 
Sci/Tech 
Health 
Medical notes 
Background Briefings 
Education 
Sport 
Entertainment 
Talking Point 
In Depth 
AudioVideo 
Thursday, 17 February, 2000, 02:50 GMT
Gum disease 'is genetic'

Gums


Genes may be as important as diet and dental hygiene in the development of gum disease, research shows.

An international team of researchers has discovered that changes in a gene for the enzyme, cathepsin C, are responsible for a condition known as Papillon-Lefevre syndrome.

Among the symptoms of this syndrome is inflammation of the gums (gingivitis).


Severe, early onset gum disease will probably be preventable in the future
Professor Tom Hart, University of Pittsburgh
Cathepsin C, which is found in skin and bone cells, activates several of the chemicals controlling local immune and inflammatory responses.

Researchers have now identified that different mutations of this same gene are responsible for another condition, prepubertal periodontitis.

This is a severe form of gum disease that develops early in life, and progresses very rapidly.

The researchers studied 14 members of an extended Jordanian family.

Four children with evidence of gum disease had mutations in both copies of their cathepsin genes.

Relatives who only had one copy of the mutated gene seemed to be protected from developing severe gum disease.

The authors say the findings indicate functioning of the cathepsin C gene is needed for healthy gums.

Up to one in five adults may develop some form of periodontitis. The researchers are now trying to establish whether the same gene mutation is linked to other forms of the disease.

The researchers believe the function of the gene may be influenced by other factors such as diet and exposure to bacteria.

But they think it is the gene itself that determines who is at risk of developing severe gum disease.

Professor Tom Hart, of the University of Pittsburgh, said the discovery could eventually lead to new treatments.

He said: "Severe, early onset gum disease will probably be preventable in the future."

Professor Hart said once those at risk were identified they could be targeted for regular cleaning of the gums, and potentially given anti-inflammatory pills and top ups of cathepsin C.

The research was published in the Journal of Medical Genetics.

Search BBC News Online

Advanced search options
Launch console
BBC RADIO NEWS
BBC ONE TV NEWS
WORLD NEWS SUMMARY
PROGRAMMES GUIDE

See also:
17 May 99 |  Health
Dental health drive launched
18 Jan 00 |  Health
Taking the misery out of the dentist's chair
26 Nov 99 |  Health
Bad breath 'damages career prospects'

Internet links:

The BBC is not responsible for the content of external internet sites
Links to other Health stories are at the foot of the page.


E-mail this story to a friend

Links to more Health stories