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Villain stomach bug may have a sweet side
Date:2/8/2013

ost's immune response.

H. pylori carrying the cytotoxin-associated gene pathogenicity island were harmful. But the bacteria with or without an atypical island may be integral to human stomach microbiota. Indeed, studies show that humans have been colonized by H. pylori for about 116,000 years.

The role of H. pylori as a pathogen does not provide an explanation as to why it has colonized the stomach of humans thousands of years. Our new findings suggest that H. pylori may provide important metabolic traits required to ameliorate diabetes that humans have not evolved on their own," Bassaganya-Riera said.

This suggests that the overuse of antibiotics for everything from misdiagnosed infections in humans to supplementary livestock feed may destroy beneficial bacteria and contribute directly to diseases such as obesity, allergies, inflammatory bowel disease, and asthma. It may be time for humans to reconsider how we can better co-exist with H. pylori and other microbes as a means of promoting health.

"This novel finding underscores the complex relationship between H. pylori and humans, with effects not limited to the stomach, but more broadly affecting systemic inflammation and metabolism," said Martin Blaser, the Frederick H. King Professor of Internal Medicine and chairman of the Department of Medicine, and professor of microbiology at New York University School of Medicine.

To better understand the complex relationship between H. pylori and the human host and to better predict health outcomes, the Center for Modeling Immunity to Enteric Pathogens has developed computer models of the mechanisms by which H. pylori interacts with the host and new tools for investigating such interactions," Bassaganya-Riera said.


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Contact: Tiffany Trent
ttrent@vt.edu
540-231-6822
Virginia Tech
Source:Eurekalert

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