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Dealing with stress: New research highlights the survival skills of disease-causing E. coli

Escherichia coli bacteria thrive in the lower intestine of humans and other animals, including birds. Most are vital constituents of the healthy gut flora, but certain forms of E. coli cause a range of di ...

Biology / Cell & Microbiology

created Jan 30, 2012 | popularity not rated yet | comments 0 | with audio podcast

When it comes to accepting evolution, gut feelings trump facts

For students to accept the theory of evolution, an intuitive "gut feeling" may be just as important as understanding the facts, according to a new study.

Other Sciences / Social Sciences

created Jan 19, 2012 | popularity 4.5 / 5 (20) | comments 184 | with audio podcast

Gut microbe networks differ from norm in obese people, systems biology approach reveals

For the first time, researchers have analyzed the multitude of microorganisms residing in the human gut as a complex, integrated biological system, rather than a set of separate species. Their approach has ...

Medicine & Health / Research

created Jan 10, 2012 | popularity 5 / 5 (10) | comments 0 | with audio podcast

Diet supplemented with specific probiotic bacterial strain increases mice lifespan

The mammalian gut is home to hundreds of bacterial species that contribute to food digestion and, in some cases, inflammatory gut diseases. Probiotics, beneficial bacterial species, can enhance gut health ...

Medicine & Health / Research

created Jan 06, 2012 | popularity not rated yet | comments 1

Compound in Apples Inhibits E. coli O157:H7

A compound that is abundant in apples and strawberries inhibits the highly pathogenic E. coli O157:H7 biofilms while sparing a beneficial strain of E. coli that also forms biofilms in the human gut, according to a paper in ...

Biology / Cell & Microbiology

created Dec 16, 2011 | popularity 5 / 5 (2) | comments 0

Team pinpoints amino acid variation in immune response gene linked with ulcerative colitis

The association between the inflammatory bowel disease ulcerative colitis and a gene that makes certain cell surface proteins has been pinpointed to a variant amino acid in a crucial binding site that profoundly influences ...

Medicine & Health / Genetics

created Dec 15, 2011 | popularity not rated yet | comments 0 | with audio podcast

Intestine crucial to function of immune cells, research shows

Researchers at the University of Toronto have found an explanation for how the intestinal tract influences a key component of the immune system to prevent infection, offering a potential clue to the cause of autoimmune disorders ...

Medicine & Health / Research

created Dec 12, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Artificial intestine to treat youths' bowel disorder

(Medical Xpress) -- A tiny 3-D collagen "scaffold" developed in a Cornell lab could prove a lifesaver for those who have lost parts of their intestine.

Medicine & Health / Research

created Dec 09, 2011 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Closing in on an ulcer- and cancer-causing bacterium

A research team led by scientists at the Chinese University of Hong Kong is releasing study results this week showing how a bacterium, Helicobacter pylori, that causes more than half of peptic ulcers worldw ...

Chemistry / Biochemistry

created Dec 07, 2011 | popularity 5 / 5 (2) | comments 1 | with audio podcast

A fecal diet keeps bumblebees healthy

(PhysOrg.com) -- New research published in the Proceedings of the National Academy of Science shows that a diet of bumble feces at the start of a bumblebee’s adult life is essential for the protection agains ...

Biology / Plants & Animals

created Nov 16, 2011 | popularity 5 / 5 (3) | comments 1 | with audio podcast report

Toxins could make you fat - depending on gut bugs

Could persistent pollutants like DDT and PCBs or chemicals found in plastics be making you fat or diabetic? The answer may depend on what sort of bacteria you have churning around in your gut, according to Cornell scientists.

Medicine & Health / Health

created Nov 03, 2011 | popularity not rated yet | comments 0

Neuroimmunologists find gut bacteria link to multiple sclerosis

(Medical Xpress) -- Researchers at the Max Planck Institute of Neurobiology have found that commensal gut flora in mice is an essential part of the immune triggering process that leads to multiple sclerosis ...

Medicine & Health / Neuroscience

created Oct 27, 2011 | popularity 4.5 / 5 (4) | comments 2 | with audio podcast report

That's gross!: Study uncovers physiological nature of disgust in politics

Most likely, you would be disgusted if confronted with a picture of a man eating a mouthful of writhing worms. Or a particularly bloody wound. Or a horribly emaciated but still living body. But just how much disgust you feel ...

Other Sciences / Social Sciences

created Oct 25, 2011 | popularity 5 / 5 (1) | comments 1

Researchers review the microbiome and its possible role in cancers

In the October 20th edition of the journal Cell Host and Microbe, Drs. Claudia Plottel and Martin J. Blaser of the Departments of Medicine and Microbiology at NYU Langone Medical Center, and the Department of Biology at New ...

Medicine & Health / Cancer

created Oct 21, 2011 | popularity 5 / 5 (3) | comments 0

Research could lead to new treatments for inflammatory bowel disease, viral infections

The intestinal ecosystem is even more dynamic than previously thought, according to two studies by UT Southwestern Medical Center researchers published in the latest issue of Science.

Medicine & Health / Research

created Oct 19, 2011 | popularity 4 / 5 (1) | comments 0 | with audio podcast

Gastrointestinal tract

The digestive tract is the system of organs within multicellular animals that takes in food, digests it to extract energy and nutrients, and expels the remaining matter. The major function of the gastrointestinal tract are ingestion, digestion, absorption, and defecation. The GI tract differs substantially from animal to animal. Some animals have multi-chambered stomachs, while some animals' stomachs contain a single box. In a human adult male, the GI tract is approximately 6.5 meters (20 feet) long and consists of the upper and lower GI tracts. The tract may also be divided into foregut, midgut, and hindgut, reflecting the embryological origin of each segment of the tract.

The remainder of this article focuses on human gastrointestinal anatomy; see digestion for the process in other organisms.

For more information about Gastrointestinal tract, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.