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Detecting esophageal cancer with light

DURHAM, N.C. -- A tiny light source and sensors at the end of an endoscope may provide a more accurate way to identify pre-cancerous cells in the lining of the esophagus. Developed by biomedical engineers at Duke University and successfully t...

Listeria clever at finding its way into bloodstream, causing sickness

WEST LAFAYETTE, Ind. - Pathogenic listeria tricks intestinal cells into helping it pass through those cells to make people ill, and, if that doesn't work, the bacteria simply goes around the cells, according to a Purdue University study. Arun ...

Mechanism behind demethylation pinpointed in APC gene mutants

Salt Lake City, September 17, 2010 -- Colon cancer is the second most common cancer in the United States and causes more than 50,000 deaths each year. It has been known for some time that mutations in the APC gene occur in more than 85 percent of al...

Polyphenol antioxidants inhibit iron absorption

University Park, Pa. -- Health benefits from polyphenol antioxidants -- substances found in many fruits and vegetables -- may come at a cost to some people. Penn State nutritional scientists found that eating certain polyphenols decreased the ...

Gut Bacteria Interact with Intestine to Regulate Blood Supply

Bacteria aren't always bad. In fact, they can be extremely helpful partners. According to research at Washington University School of Medicine in St. Louis, microbes found naturally in the mouse and human gut interact with intestinal cells, called Paneth cells, to promote the development of blood vessels in the intestinal lining. "This study provides insights into the mutually beneficial partnerships forged between mammals and their native microbes," says the principal investigator. "These symbiotic relationships probably are most important in the gut, which contains the largest and most complex collection of bacteria."

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