Navigation Links
Gut microbes' partnership helps body extract energy from food, store it as fat

roides thetaiotaomicron, begin a fermentation process that breaks down these nutrients so that the stored calories can be liberated and absorbed.

But B. thetaiotaomicron doesn't just work in a simple partnership with its host. The human gut contains hundreds, and perhaps thousands, of different microbial species, and the functions they perform affect each other and their hosts.

Gordon's lab models the interactions between friendly gut microbes and their hosts using gnotobiotic mice. These mice are raised in a manner that keeps them germ-free. They are then colonized with one or more human gut-derived microbes to study how microbial-microbial and microbial-host interactions affect digestive health.

Buck Samuel, a doctoral student in Gordon's lab, began to probe the influence of Methanobrevibacter smithii, an archaeon. Originally identified in the 1970s and mistaken for a primitive form of bacteria, archaea initially became famous because of their ability to live in extreme environments where nothing else could survive, such as hot springs. Scientists first isolated archaea from the human intestine in 1982, and have recently recognized M. smithii as the most common archaeon in human intestines.

In addition to its prevalence, M. smithii was an intriguing target for study because of its ability to consume hydrogen and other byproducts of bacterial digestion of polysaccharides. Accumulation of such byproducts slows polysaccharide digestion. Samuel and Gordon speculated that M. smithii could improve the overall efficiency of digestion of dietary polysaccharides, and wondered whether it also affected which types of polysaccharides are most coveted by intestinal bacteria.

Samuel colonized one group of gnotobiotic mice with the polysaccharide-digesting bacterium B. thetaiotaomicron. Another group was colonized with M. smithii, while a third group received both B. thetaiotaomicron and M. smithii.

The archaeon's presence
'"/>

Source:Washington University School of Medicine


Page: 1 2 3 4

Related biology news :

1. Wisconsin scientists discover a master key to microbes pathogenic lifestyles
2. MITs ocean model precisely mimics microbes life cycles
3. Nonlinear Dynamics announces more details of its global partnership with PerkinElmer
4. New partnership to clear landmines for African Elephants
5. Jumping gene helps explain immune systems abilities
6. Protein helps regulate the genes of embryonic stem cells
7. Scientists reveal the shape of a protein that helps retroviruses break into cells
8. Thai spice helps cut blood sugar swings
9. Chemists synthesize molecule that helps body battle cancers, malaria
10. Ancient DNA helps clarify the origins of two extinct New World horse species
11. Massey Cancer Center researcher helps to identify a piece of the cancer puzzle
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Gut microbes partnership helps body extract energy from food store fat

(Date:9/30/2014)... tetrachloroethylene (PCE) in drinking water may increase the ... a new study led by a Boston University ... published in the journal Environmental Health , ... among 1,766 women in Cape Cod, Ma., where ... the early 1980s by the installation of vinyl-lined ...
(Date:9/30/2014)... on Earth, but when the climate changes and temperatures ... The amount of time needed to adjust to new ... in the future, reveals a new study from researchers ... journal Proceedings of the Royal Society B . ... of greenhouse gases in the atmosphere. The greenhouse effect ...
(Date:9/30/2014)... N.C. -- Pollution in urban and farm runoff in ... new study finds. , The study, published Tuesday ... that nitrogen in the runoff ends up in algae ... on the animals, eyes, flippers and internal organs. , ... the National Oceanic and Atmospheric Administration (NOAA) conducted the ...
Breaking Biology News(10 mins):Contaminated water linked to pregnancy complications, BU study finds 2Shape up quickly -- applies to fish, too! 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3
... soy foods may be more effective in preventing prostate cancer ... alone, said a University of Illinois study. "In our ... an aggressive form of prostate cancer. Even so, half the ... lesions in the prostate at study,s end. All the mice ...
... people are familiar with the sight-saving role ophthalmologists play in ... of the revolutionary contributions they make beyond medicine. One such ... Flom , M.D., and the late Aran ... States Patent and Trademark Office,s National Inventors Hall of ...
... from the University of New South Wales have ... how micro-organisms respond to the disinfecting properties of ... applications. Although nanosilver has effective antimicrobial properties ... cause other potentially harmful organisms to rapidly adapt ...
Cached Biology News:Soy and tomato combo may be effective in preventing prostate cancer 2Ophthalmologist Inventors of Human Identification Technology Inducted into National Inventors Hall of Fame 2Ophthalmologist Inventors of Human Identification Technology Inducted into National Inventors Hall of Fame 3Bacteria adapt and evade nanosilver's sting -- new study 2
(Date:9/30/2014)... and ROCKVILLE, Md., Sept. 30, 2014 ... partnership focusing on commercializing market-relevant biohealth innovations and increasing ... , announced today that venture capitalist, Tania ... a strategic advisor. Dr. Fernandez will be a member ... Fund, which will provide up to $50 million in ...
(Date:9/30/2014)... 30, 2014 Lyme Research Alliance ... Lyme disease research at universities, today announced the awarding ... the identification, treatment and cure for Lyme and other ... the most applications in its history—over 20 grant proposals—a ... we were pleased to receive so many solid applications ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Whitehouse ... been chosen by the Parenteral Drug Association (PDA) ... and 19, 2014) on container closure integrity testing. This ... integrity test methods and philosophies detailed in the recently ... Evaluation. The course will span container closure ...
(Date:9/29/2014)... the start of the military conflicts in Iraq and ... United States with traumatic brain injury caused by exposure ... improvised explosive devices, or IEDs. Symptoms of traumatic brain ... headaches and nausea, to more severe impairments in memory ... of Defense has recognized the critical importance and complexity ...
Breaking Biology Technology:Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 3Lyme Research Alliance Awards Nearly $600,000 in New Grants 4Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 2Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 3Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 4Modeling shockwaves through the brain 2Modeling shockwaves through the brain 3Modeling shockwaves through the brain 4
... - Vasogen Inc. (NASDAQ: VSGN ; TSX:VAS), today ... Listing Qualifications Department of The NASDAQ Stock Market indicating ... 5550(a)(2). , We plan to request a hearing before ... the NASDAQ,s determination of the continued listing of our ...
... new device, called a "spaser," is the first of ... critical component for possible future technologies based on "nanophotonic" ... Professor of Electrical and Computer Engineering at Purdue University. ... current lasers can,t be made small enough to integrate ...
... fixture, it,s time to take a fresh look at it. ... biosensors that can detect certain harmful toxins that can cause ... a paper published in the July issue of Analytical ... University, working with the Sentinel Bioactive Paper Network, describe a ...
Cached Biology Technology:Vasogen Receives NASDAQ Notification Related to Minimum Bid Price 2New nanolaser key to future optical computers and technologies 2New nanolaser key to future optical computers and technologies 3Toxin detection as close as an inkjet printer 2
... Source: Crotalus adamanteus venom Description: ... widely used in studying nucleic ... . It hydrolyzes 5'-mononucleotides from ... . Phosphodiesterase I cleaves ADP-ribosylated ...
... Life Science Rotarods are used to assess the ... fatigue resistance on mice and rats using one ... user friendly; the animals are placed on textured ... onto the individual sensing platforms below, its test ...
... I Amplification Grade digests ... to oligodeoxyribonucleotides. The specific ... DNAse I Amplification Grade ... tested for absence of ...
... Qualified is a special preparation of bovine pancreatic ... stranded cleavage of DNA molecules. In the presence ... makes double strand breaks at random sites in ... can be controlled by the enzyme concentration and ...
Biology Products: