Author Archives: Karin Lillis

Bug that causes stomach cancer could play a role in colorectal cancer

A bacterium known for causing stomach cancer might also increase the risk of certain colorectal cancers, particularly among African Americans, according to a study led by Duke Cancer Institute researchers. The finding, published online in the journal Gastroenterology, describes an association between antibodies to H. pylori bacteria and an increased risk of colorectal cancers, although it does not establish the ...

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New study finds that inflammatory proteins in the colon increase incrementally with weight

Studies in mice have demonstrated that obesity-induced inflammation contributes to the risk of colorectal cancer, but evidence in humans has been scarce. A new study shows that two inflammatory proteins in the colon increase in parallel with increasing weight in humans. An incremental rise in these pro-inflammatory proteins (called cytokines) was observed along the entire spectrum of subjects’ weights, which ...

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NIH study finds probiotic Bacillus eliminates Staphylococcus bacteria

A new study from National Institutes of Health scientists and their Thai colleagues shows that a “good” bacterium commonly found in probiotic digestive supplements helps eliminate Staphylococcus aureus, a type of bacteria that can cause serious antibiotic-resistant infections. The researchers, led by scientists at NIH’s National Institute of Allergy and Infectious Diseases (NIAID), unexpectedly found that Bacillus bacteria prevented S. ...

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Gut bacteria’s shocking secret: They produce electricity

While bacteria that produce electricity have been found in exotic environments like mines and the bottoms of lakes, scientists have missed a source closer to home: the human gut.   University of California, Berkeley, scientists discovered that a common diarrhea-causing bacterium, Listeria monocytogenes, produces electricity using an entirely different technique from known electrogenic bacteria, and that hundreds of other bacterial ...

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Pilot study identifies strain of bacteria as chief risk factor for stomach cancer

Researchers at Fred Hutchinson Cancer Research Center have found a specific strain of Helicobacter pylori strongly correlated with stomach cancer. The research, published in the journal PLOS ONE, could eventually be used to shape treatment and screening strategies for patients. Collaborating with researchers at Zhengzhou University, the Fred Hutch team ran tests on 49 patients’ stomach endoscopy and stool samples, looking for H. pylori with a variant ...

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