Helicobacter pylori (H. pylori) is a type of bacteria. Researchers believe that H. pylori is responsible for the majority of peptic ulcers. H. pylori infection is common in the United States. About 20 percent of people under 40 years old and half of those over 60 years have it. Most infected people, however, do not develop ulcers. Why H. pylori does not cause ulcers in every infected person is not known. Most likely, infection depends on characteristics of the infected person, the type of H. pylori, and other factors yet to be discovered. Researchers are not certain how people contract H. pylori, but they think it may be through food or water. Researchers have found H. pylori in the saliva of some infected people, so the bacteria may also spread through mouth-to-mouth contact such as kissing.
New research, headed by microbiologists from the University of Georgia, show for the first time that Salmonella – a widespread and often deadly bacterial pathogen – use molecular hydrogen to grow and become virulent.
A common assumption among cancer specialists is that most cancers originate from tissue stem cells – for example, the gastric stem cells contained in the lining of the stomach.
The prevalence of Helicobacter pylori (a type of bacteria associated with gastrointestinal disorders) is high among patients about to undergo weight loss surgery, and treatment to eradicate the bacterial infection before surgery may be beneficial, according to an article in the October issue of The Archives of Surgery.
An international team led by The Burnham Institute's Minoru Fukuda, Ph.D., has discovered that a human glycoprotein inhibits Helicobacter pylori ("H. pylori"), the bacterium that causes stomach ulcers and is linked with 90% of stomach cancers.
Scientists working to develop a vaccine for the bacterium Helicobacter pylori, the primary cause of ulcers and a contributor to stomach cancers, have uncovered new intricacies in the way the bacterium sticks to the lining of the human stomach.
A new book published by the Pan American Health Organization (PAHO) predicts that the 21st century will become the "century of vaccines" thanks to rapid developments in the field of immunization.
The latest spin-out company from Oxford University, Oxford Medical Diagnostics Ltd, hopes to develop a way of diagnosing disease simply by testing someone's breath.
Glucoraphanin, also known as sulforaphane glucosinolate (SGS(TM)), a naturally-occurring compound found in broccoli sprouts and broccoli, may reduce risk of high blood pressure, cardiovascular disease and stroke, according to new research published in the May 4 issue of the Proceedings of the National Academy of Sciences of the USA.
The esophagus isn't merely a tube for food traveling from the mouth to the stomach, it also provides an environment for bacteria to live, according to a new study by NYU School of Medicine scientists that overturns the general belief that the esophagus is free of bacteria.