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)... Rock, AR (PRWEB) , ... October 13, 2017 ... ... firm with locations throughout Arkansas that offers insurance and financial preparation services, is ... benefit the Rock City Rescue organization. , Rock City Rescue is a locally ...
(Date:10/13/2017)... ... 13, 2017 , ... The American Board of Family Medicine's (ABFM) Board of ... Executive Officer, succeeding Dr. James C. Puffer upon his retirement. Dr. Newton will serve ... Puffer’s retirement at the end of 2018. Upon assuming the role of President and ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... (SOP) alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along ... updates for the primary prevention of cardiovascular diseases during the 15th Annual ...
(Date:10/13/2017)... ... 13, 2017 , ... Many families have long-term insurance that covers care for ... a waiver for care if the client has a cognitive impairment diagnosis. , ... care, is often waived, so the benefits from their insurance start immediately,” said Mechell ...
(Date:10/13/2017)... ... ... Global Healthcare Management’s 4th Annual Kids Fun Run brought out many kids ... sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at getting kids excited ... all ages; it is a non-competitive, non-timed event, which is all about having fun ...
Breaking Medicine News(10 mins):
(Date:10/7/2017)... Texas , Oct. 6, 2017   Provista, ... with more than $100 billion in purchasing power, today ... news and information. The Newsroom is the ... and industry trends, infographics, expert bios, news releases, slideshows ... having access to a wealth of resources at their ...
(Date:10/4/2017)... the Centers for Disease Control and Prevention (CDC), influenza vaccination should ... helping communities across Massachusetts , Connecticut ... shots through the end of the month. *Some exclusions apply ... ... is by the end of October, according to the Centers for Disease ...
(Date:10/2/2017)... , Oct. 2, 2017  Eli Lilly and Company ... results for the third quarter of 2017 on Tuesday, ... call on that day with the investment community and ... The conference call will begin at 9 a.m. ... access a live webcast of the conference call through ...
Breaking Medicine Technology: