News tagged with helicobacter pylori
Trends in Helicobacter pylori (H. pylori) and smoking explain a significant proportion of the decline of intestinal-type noncardia gastric adenocarcinoma (NCGA) incidence in US men between 1978 and 2008, and are estimated ...
Medical research May 21, 2013 | not rated yet | 0
Numerous epidemiologic studies have shown that a diet high in salt is associated with an increased risk of gastric cancer. Now Timothy L. Cover and colleagues of Vanderbilt University show that high dietary salt combined ...
Immunology Apr 18, 2013 | not rated yet | 0
(Medical Xpress)—Researchers at the University of Virginia School of Medicine have developed a promising new antibiotic to treat potentially deadly gastrointestinal infections without harming the beneficial probiotic bacteria ...
Diseases, Conditions, Syndromes Apr 12, 2013 | not rated yet | 0
The virus that causes cold sores, along with other viral or bacterial infections, may be associated with cognitive problems, according to a new study published in the March 26, 2013, print issue of Neurology.
Neuroscience Mar 25, 2013 | 3.7 / 5 (3) | 0 |
Mice with different naturally occurring stomach bacteria have distinct susceptibilities to disease caused by Helicobacter pylori, the well-known cause of ulcers in humans, according to a study published online ahead of pri ...
Immunology Mar 25, 2013 | 5 / 5 (1) | 0 |
Half of the world's human population is infected with the stomach bacteria called Helicobacter pylori, yet it causes disease in only about 10 percent of those infected. Other bacteria living in the stomach may be a key fa ...
Immunology Mar 12, 2013 | 5 / 5 (4) | 0 |
In an analysis of the results of interventions to eradicate the bacterium Helicobacter pylori (a risk factor for gastric cancer) in seven diverse community populations in Latin America, researchers found that geographic site, ...
Cancer Feb 12, 2013 | not rated yet | 0
A new study by NYU School of Medicine researchers reveals that an especially virulent strain of the gut bacterium Helicobacter pylori (H. pylori) isn't implicated in the overall death rate of the U.S. population, and may even ...
Diseases, Conditions, Syndromes Jan 09, 2013 | 5 / 5 (2) | 0 |
(Medical Xpress)—Scientists at Karolinska Institutet in Sweden have presented a new principle for fighting bacterial infections, in other words, a new type of antibiotic, in the FASEB Journal. The new antibiotic mechan ...
Medical research Dec 18, 2012 | 5 / 5 (6) | 0 |
People with AIDS are at increased risk for developing esophageal and stomach carcinoma as well as non-Hodgkin lymphomas (NHLs), according to a new study in Gastroenterology, the official journal of the American Gastroenterological Associ ...
Cancer Sep 24, 2012 | not rated yet | 0
Bonanza of genomic sequence data gives researchers valuable new insights into a poorly understood cancer
Stomach cancer doesn't get the same publicity as lung or breast cancer, but it is a health threat to be taken very seriously. "Gastric cancer is the second leading cause of worldwide cancer mortality, with ...
Genetics Sep 12, 2012 | not rated yet | 0
Study offers comprehensive look at chemical, genetic changes that occur as inflammation progresses to cancer
One of the biggest risk factors for liver, colon or stomach cancer is chronic inflammation of those organs, often caused by viral or bacterial infections. A new study from MIT offers the most comprehensive look yet at how ...
Inflammatory disorders Jun 11, 2012 | 5 / 5 (1) | 0 |
Researchers have launched a major clinical trial to investigate whether eliminating a common stomach bug could help to make taking aspirin safer in some patients.
Medications Mar 26, 2012 | 5 / 5 (1) | 1
(HealthDay) -- The U.S. Food and Drug Administration has expanded approval for a breath test that screens for a common ulcer-causing germ, to include children aged 3 years to 17.
Medications Feb 24, 2012 | not rated yet | 0
(Medical Xpress) -- The debate over the bacteria Helicobacter pylori continues as a new study published in Clinical Infectious Diseases shows that people carrying H. pylori have a reduced risk of diarrhea from other bacterial ...
Medical research Dec 27, 2011 | 4.6 / 5 (5) | 0 |
Helicobacter pylori (pronounced /ˌhɛlɪkɵˈbæktər pɪˈlɔəraɪ/) is a Gram-negative, microaerophilic bacterium that inhabits various areas of the stomach and duodenum. It causes a chronic low-level inflammation of the stomach lining and is strongly linked to the development of duodenal and gastric ulcers and stomach cancer. Over 80% of individuals infected with the bacterium are asymptomatic.
The bacterium was initially named Campylobacter pyloridis, then renamed C. pylori to correct a Latin grammar error. When 16S rRNA gene sequencing and other research showed in 1989 that the bacterium did not belong in the genus Campylobacter, it was placed in its own genus, Helicobacter. The genus derived from the Ancient Greek hělix/έλιξ "spiral" or "coil". The specific epithet pylōri means "of the pylorus" or pyloric valve (the circular opening leading from the stomach into the duodenum), from the Ancient Greek word πυλωρός, which means gatekeeper.
More than 50% of the world's population harbour H. pylori in their upper gastrointestinal tract. Infection is more prevalent in developing countries, although incidence is decreasing in western countries. The route of transmission is unknown, although individuals become infected in childhood. H. pylori's helix shape (from which the generic name is derived) is thought to have evolved to penetrate the mucoid lining of the stomach.
For more information about Helicobacter pylori, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.