Navigation Links
Tooth Decay Bacteria Evolved Along With Man

A research team from the New York University College of Dentistry has discovered the first conclusive proof that bacteria associated with// oral decay evolved along with its human hosts.

This can even be traced to a single common ancestor who lived in Africa between 100,000 and 200,000 years ago, say the researchers.

The team, led by Page Caufield, a professor of cariology and comprehensive care at NYUCD, discovered that Streptococcus mutans, a bacterium associated with dental caries, has evolved along with its human hosts.

S. mutans is transmitted from mothers to infants, and first appears in an infant’s mouth at about two years of age.

Caufield’s findings are reported in an article in the February issue of the Journal of Bacteriology.

In his analysis of the bacterium, Caufield used DNA fingerprints and other biomarkers that scientists have also employed to trace human evolution back to a single common African ancestor, known as "ancestral Eve."

"As humans migrated around the world and evolved into the different races and ethnicities we know today," Caufield said, "this oral bacterium evolved with them in a simultaneous process called coevolution."

"It is relatively easy to trace the evolution of S. mutans, since it reproduces through simple cell division," says Caufield, who gathered over 600 samples of the bacterium on six continents over the past two decades.

His final analysis focused on over 60 strains of S. mutans collected from Chinese and Japanese; Africans; African-Americans and Hispanics in the United States; Caucasians in the United States, Sweden, and Australia; and Amazon Indians in Brazil and Guyana.

"By tracing the DNA lineages of these strains," Caufield said, "We have constructed an evolutionary family tree with its roots in Africa and its main branch extending to Asia.

A second branch, extending from Asia back to Europe, traces the migration of a small gro up of Asians who founded at least one group of modern-day Caucasians."

Additional branches, tracing the coevolution of humans and bacteria from Asia into North and South America, will be drawn in the next phase of Caufield’s analysis.

Source-Eurekalert
AN
'"/>




Related medicine news :

1. New Tooth Paste Is Here To Fill In Dental Cavities
2. Post-Menopausal Status May Cause Tooth Decay
3. Researchers Discover New Clues To Identify Tooth Decay
4. Colgate To Develop Anti-Cancer Toothpastes And Mouthwashes
5. Nine Major Culprits For Tooth Loss Identified By Researchers
6. Tooth Decay Bacteria Unaffected By Altered Biochemical Pathway
7. Tooth Loss And Heart Disease Exist Side By Side
8. Tooth decay can be prevented by using straw for drinking fizzy drinks
9. Syrupy Medicines Increase the Risk of Tooth Decay
10. Compounds in Licorice Can Fight Tooth Decay
11. Fluoride Varnish prevents Tooth Decay In Milk Teeth
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... PITTSBURGH, Pa. (PRWEB) , ... October 13, 2017 , ... ... the dark poses a problem. Fortunately, an inventor from Austin, Texas, has identified a ... access to medication in darkness or restricted lighting. As such, it eliminates the need ...
(Date:10/13/2017)... ... October 13, 2017 , ... PurhealthRX , a ... utilizing Purzorb™ technology. Applying the Purzorb™process to full spectrum CBD oil will revolutionize the ... a CBD form that can be easily incorporated into liquid products, while reducing costs ...
(Date:10/13/2017)... ... ... Apple Rehab Shelton Lakes , which specializes in the delivery of ... part of a disaster drill on October 3rd. , Apple Rehab participated with the ... as well as the Connecticut Long Term Care Mutual Aid Plan (LTC-MAP). The ...
(Date:10/13/2017)... ... , ... Ellevate Network, the leading network for professional women, brought together some ... at their inaugural Summit in New York City in June. The event was livestreamed ... over 3 million. To watch the Mobilize Women video, click here . ...
(Date:10/13/2017)... ... 13, 2017 , ... Talented host, actor Rob Lowe, is ... a new episode of "Success Files," which is an award-winning educational program broadcasted ... each subject in-depth with passion and integrity. , Sciatica occurs when the sciatic ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... Oct. 11, 2017  True Health, a leader ... its effort during National Breast Cancer Awareness month ... risks. Research ... calculated that more than 10 million American women ... in BRCA1 or BRCA2 and have not had testing. ...
(Date:10/7/2017)... , Oct. 6, 2017   Provista, a ... than $100 billion in purchasing power, today announced a ... information. The Newsroom is the online home ... trends, infographics, expert bios, news releases, slideshows and events. ... to a wealth of resources at their fingertips, viewers ...
(Date:10/4/2017)... 4, 2017 OBP Medical , ... medical devices, today announced regulatory approval from ... (or Agência Nacional de Vigilância Sanitária (ANVISA)) to ... surgical retractor with integrated LED light source and ... and exposure of a tissue pocket or cavity ...
Breaking Medicine Technology: