Health Library.com
MD Consult
MD Consult is the world's largest online medical library



Health Videos
Free Animated Health Videos for health education


Ask The Librarian
Find Out Everything Your Doctor Would Tell You -- If Only He Had the Time !


HELP in the News
Press article of HELP


Guided Tour of HELP
Take a Video Tour of HELP !

Have a look at the pictures of the library


Search
Search the entire Healthlibrary.com site. The search is powered by Google.


The patient's Doctor
Helping patients and doctors to talk to each other!


Support Us
Find out how your help can HELP to improve its services.


Book Reviews
Here we will present you with regular Book Reviews of our latest arrivals.


HELP Catalog
You can now search our catalog of over 8000 books and 10000 pamphlets online sitting at home !


Guestbook
Would you like to read what others have to say. We would love to hear from you...

Also read the Visitor's Comments


Seminar
HELP initiates a seminar and releases two books on improving the doctor patient relationship


Help Talks
HELP Talks are held on the 1st & 3rd Saturdays of every month at 1pm on a wide range of health topics.


Favourites
This section presents your favourite consumer health site


Limca Book of Records

News
Antacids also control oral bacteria

November 4, 2006
www.medindia.com

A study involving active ingredients in popular antacids has concluded that common antacids could help keep gingivitis at bay.

According to researchers,these chemicals, commonly used to treat heartburn also display fighting power against the oral bacteria linked with the gum disease,Gingivitis. If subsequent studies confirm this finding,antacids will become a part of toothpastes and mouthwashes. Researchers at the University of Rochester Medical Center and Goteborg University in Sweden.,opine ; this could help in improving ways of controlling plaque and gingivitis.

"The American diet and the constant drip of sugar allows little time for the natural repair of teeth. All day, it's a cycle of acidic erosion and repair - or at least, it should be - but our constant sucking on hard candy and guzzling sodas with high fructose syrups leaves little time for repair," said Robert Marquis, Ph.D., of the University of Rochester Medical Center. Marquis, an internationally recognized expert on the bacteria that inhabit our mouths, is the study's lead author.

The team studied a compound known as lansoprazole, part of a family of compounds known as benzimidazoles that already have a range of uses, primarily controlling stomach hyperacidity and killing Helicobacter pylori (the bacteria responsible for stomach ulcers). Now, the compounds are brandishing potent antimicrobial actions that interfere with the dirty work of other types of bacteria that cause plaque buildup and gingivitis.

Such bacteria make their home on unbrushed teeth, which become coated with plaque, a filmy substance that, under a microscope, appears as a teeming sea of hundreds of bacteria. Among these are gingivitis-causing bacteria that break down sugars and amino acids into toxins that are harmful to our gums.

Unchecked, an accumulation of plaque and an overgrowth of these ravenous, toxin-oozing bacteria leads to one of the body's natural immune responses, inflammation, where bacteria-fighting cells are recruited to the gums to fight off the infection. Unfortunately, instead of just fending off the bacteria, the immune response also inflicts damage to the healthy gums. In the case of an intense infection, the battle drags out and results in more devastation to the gums, or gingivitis.

Since gingivitis can be a preamble for periodontal disease - an oral inflammation so persistent that it destroys the bone where the teeth anchor, causing them to fall out - researchers at the University of Rochester and Goteborg University in Sweden decided to focus on Fusobacterium nucleatum, an especially hardy bacterial troublemaker that plays a crucial role in setting the stage for gum disease.

When it's not secreting irritating chemicals itself, F. nucleatum acts as a binding site for other dangerous oral bacteria that cannot directly attach to tooth surfaces on their own. These bacteria, dubbed "secondary colonizers," rely on the help of F. nucleatum, which serves almost like an aircraft landing strip atop an aircraft carrier, allowing planes (or in this case, bacteria) to set down. With the help of F.nucleatum, these dangerous bacteria now have a place to "land" and create the damage that causes periodontal disease and tooth decay.

"It acts as a transitional organism, welcoming the bacteria which couldn't survive there on their own, and moving the infection from above the gum line to below it," said Marquis, professor of both Microbiology & Immunology and Oral Biology.

That's where lansoprazole comes in. When the oral environment becomes acidic - a telltale sign of bacteria at work - lansoprazole is chemically modified to kick into action, disabling F. nucleatum and preventing it from producing toxins or serving as a landing site. Once the oral environment returns to normal, the lansoprazole simply switches off.

"Benzimidazoles aren't just for acid-reflux anymore," said Marquis, whose research project was supported by the National Institute of Dental and Craniofacial Research. "We've shown their promise for preventing cavities in previous research, and now, perhaps even some protective benefits to guard against gingivitis. It's not unthinkable that one day these compounds might be more broadly used to promote dental health in toothpastes and mouthwashes."