Navigation Links
Stanford gut check shows diversity of intestinal ecosystem

plays a role in the translation of the genetic code and thus is critical to the organisms. However, small variations in the 16S rRNA gene sequences allow scientists to detect distinct bacteria.

For each of the three research subjects, the researchers analyzed samples from six different anatomical sites inside the large intestine as well as a stool sample.

Eckburg and his team determined more than 13,000 sequences of 16S rRNA. Most of what they identified included the usual suspects in the intestinal flora, but there were surprises. Nearly two-thirds of the bacteria they identified were novel, meaning that they had no genetic close neighbors in the existing databases that store sequence information about all known species.

"We thought we would find new ones, but it was a bit surprising to see such a large percentage that had remained unidentified," said Eckburg. "Despite this large effort, we are still not approaching the point of complete coverage of the intestinal community in any one individual - much less the complete coverage of all human intestinal communities." In contrast, the investigators found very limited diversity within the archaea, microbes that look a lot like bacteria but are genetically and biochemically as different from bacteria as bacteria are from humans.

The team also used the samples to examine how microbial communities differ among locations within the intestine as well as among different people.

"We were surprised at the degree to which an individual determines the particular picture of microbial diversity that we see," said Relman. "Variation between individuals had been suspected, but our data proved to be a dramatic confirmation of this belief."

An interesting corollary of this finding is that the ability to create a comprehensive census of the microbes living inside a person could have implications for human forensics. Unlike people's genetic makeup, their endogenous microbial communities
'"/>

Source:Stanford University


Page: 1 2 3

Related biology news :

1. Same mutation aided evolution in many fish species, Stanford study finds
2. First real-time view of developing neurons reveals surprises, say Stanford researchers
3. Stem cells from brain transformed to produce insulin at Stanford
4. Young Blood Revives Aging Muscles, Stanford Researchers Find
5. Stem cell training program to make its Stanford debut
6. Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds
7. Sooner is better with cochlear implants, Stanford scientist shows
8. Learning to love bacteria: Stanford scientist highlights bugs benefits
9. For one Stanford doctor, the beat goes on during open-heart surgery
10. Stanford study of owls finds link in brain between sight and sound
11. Stanford/Packard scientists data-mining technique strikes genetic gold
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Stanford gut check shows diversity intestinal ecosystem

(Date:4/23/2014)... or simply cli-fi, is a newly coined term for novels ... New research from University of Copenhagen shows how these fictions ... the potential consequences of climate change and imagine other living ... data on changes in the atmosphere; it is also a ... books we read and the films we see. And there ...
(Date:4/23/2014)... HOUSTON, April 23, 2014 A biomedical engineer at ... highly innovative technology to make blood transfusions safer. His ... the National Institutes of Health (NIH). , Blood ... one of modern medicine,s absolute necessities. Without them, for ... mean transfusions are perfect, however. There,s strong evidence that ...
(Date:4/22/2014)... to get your child to behave at the dinner tablecut ... study published in Eating Behaviors , found that when ... with their front teeth such as drumsticks, whole apples, or ... these foods had been cut. "They were twice as ... kids," said Brian Wansink, Professor and Director of the Cornell ...
Breaking Biology News(10 mins):Fiction prepares us for a world changed by global warming 2Fiction prepares us for a world changed by global warming 3UH biomedical engineer works to make blood transfusions safer 2UH biomedical engineer works to make blood transfusions safer 3Biting vs. chewing 2
... our genomes can be traced back to strange rogue sequences known ... mammals. But Johns Hopkins researchers report they have identified a new ... its class found to be active in mammals. The discovery, described ... Proceedings of the National Academy of Sciences , offers a ...
... new research report published in the Journal ... known for causing gum disease-- Porphyromonas gingivalis --manipulates the ... otherwise destroy it. Specifically, the report shows that this ... (IL-10). This, in turn, inhibits the function of T-cells, ...
... carried out at Imperial College London and the University of ... would help prevent miscarriage in women who are particularly vulnerable. ... embed itself in the lining of the uterus. The uterus ... each menstrual cycle, ensuring that embryos can only implant at ...
Cached Biology News:Rare form of active 'jumping genes' found in mammals 2Smile: Gingivitis bacteria manipulate your immune system so they can thrive in your gums 2Scientists pinpoint molecular signals that make some women prone to miscarriage 2
(Date:1/15/2014)... January 15, 2014 The Microcompetition with Foreign ... disease. One of these latent viruses is the Epstein Barr ... (RA). Rheumatoid arthritis (RA) is a chronic inflammatory disease that ... study found that RA patients have high concentrations of EBV ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 AudioNotch is ... new therapy for the treatment of tinnitus. Patients listen ... frequency, and over a period of weeks to months, their ... Therapy in two forms: Notched Music and Notched White Noise. ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Histogen, Inc., ... products of cells grown under simulated embryonic conditions, today ... agreement with Suneva Medical, Inc. for physician-dispensed aesthetic products ... , This agreement is an amendment to the ...
(Date:1/14/2014)... The largest international professional organization of scientists ... derivatives thereof has endorsed an educational program that ... challenges of adulterated herb and botanical products. ... The Society for Medicinal Plant and Natural Product ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8
... remotes are catching on in large University of Wisconsin-Madison ... mean students are kicking back and watching Comedy Central ... buttons, let them respond instantly to multiple-choice questions posed ... some students who might feel embarrassed to raise their ...
... is an integral place of business, the online reality is ... Web sites. , ,Many Internet surfers often believe they ... intuition is based on a number of surface-level factors. For ... it appears in the natural results of a search engine ...
... says it has bought a new copy machine for $57,000. ... "enlarge" feature than the typical office copier: It makes three-dimensional ... and the Anthrax virus. , ,Using white polymer powder and ... tall one layer at a time. Z-Corp is headquartered in ...
Cached Biology Technology:Many still distrust Web sites is yours credible enough? 2Many still distrust Web sites is yours credible enough? 3
... (Ribonuclease inhibitor) is a 50 ... inhibit RNase activity. It does ... activity. , Inhibits RNase ... template , Lacks DNA ...
... of GC-rich nucleic acids ,The GC-RICH ... Polymerase and a proofreading polymerase, powers through ... amplify with other polymerases and other blends ... blend and the unique GC-RICH Resolution Solution ...
... For nucleofection of optimized cell lines in ... the nucleofection parameters. Nucleofector Kits are only ... Different cell lines can be transfected with ... are given in brackets in percent (Efficiency ...
... PCR Workstation brings together UV irradiation and ... environment against PCR contamination! Quickly inactivate ... Maintain a clean environment with antimicrobial coated ... reagents within minutes with built-in 30-minute timer ...
Biology Products: