See the article for full information. I have just pulled out a few
pertinent paragraphs. Vanny
http://www.nytimes.com/2011/04/21/science/21gut.html?_r=1&em&exprod
Bacterial Ecosystems Divide People Into 3 Groups, Scientists Say
"...Dr. Bork and his colleagues have found that each of the types makes
a unique balance of these enzymes. Enterotype 1 produces more enzymes
for making vitamin B7 (also known as biotin), for example, and
Enterotype 2 more enzymes for vitamin B1 (thiamine)...."
"...Doctors might be able to tailor diets or drug prescriptions to suit
people’s enterotypes, for example.
Or, he speculated, doctors might be able to use enterotypes to find
alternatives to antibiotics, which are becoming increasingly
ineffective...."
"...Each person shelters about 100 trillion microbes.
(For comparison, the human body is made up of only around 10 trillion
cells.) But scientists cannot rear a vast majority of these bacteria in
their labs to identify them and learn their characteristics...."
"...In the recent work, Dr. Bork and his team carried out an analysis of
the gut microbes in 22 people from Denmark, France, Italy and Spain.
Some of their subjects were healthy, while others were obese or suffered
from intestinal disorders like Crohn’s disease. Dr. Bork and his
colleagues searched for fragments of DNA corresponding to the genomes of
1,511 different species of bacteria. The researchers combined their
results with previous studies of 13 Japanese individuals and 4
Americans...."