New world Helicobacter pylori genome sequenced, dynamics of inflammation-related genes revealed

An international team of researchers led by scientists at the Virginia Bioinformatics Institute (VBI) at Virginia Tech have sequenced the genome of an Amerindian strain of the gastric bug Helicobacter pylori, confirming the out-of-Africa migration of this bacterial stowaway to the New World. Experiments in animals have highlighted how specific genes in the bacterial strain may be crucial to the onset of inflammation and disease.

Read more

New combination therapy looks promising against ulcer bacteria

Helicobater pylori, a bacteria implicated in peptic ulcers and gastritis, was eradicated in 95 percent patients who took a 7-day course of combination therapy with levofloxacin, omeprazole, nitazoxanide (Alinia®) and doxycycline (LOAD) compared to eradication in only 80.9 percent of patients on lansoprazole, amoxicillin and clarithromycin (LAC) for seven days.

Read more

Mayo Clinic tests non-incision, endoscopic ulcer repair

Clinical trial may be in near future

ROCHESTER, Minn. — Mayo Clinic surgical researchers are reporting a 93 percent success rate in recent animal tests of endoscopic repair of perforated ulcers. The goal is to advance the use of an endoscope — which allows access to organs through natural openings, such as the mouth — for a less invasive alternative to laparoscopic techniques (surgery performed through a small incision) or conventional surgery. They will present their findings from recent animal studies today at the American College of Surgeons 95th Clinical Congress in Chicago.

Read more

Glutamine supplements show promise in treating stomach ulcers

Amino acid helps offset stomach damage caused by H. pylori bacteria; animal study suggests popular supplement could also reduce risk of gastric cancers

Nearly 20 years ago, it was discovered that bacteria known as Helicobacter pylori were responsible for stomach ulcers. Since then, antibiotics have become the primary therapy used to combat the H. pylori infection, which affects approximately six percent of the world population and is also a primary cause of stomach cancer. But today the bacteria is growing increasingly resistant to antibiotics.

Read more

Broccoli sprouts may protect against stomach cancer and ulcers

A small, pilot study in 50 people in Japan suggests that eating two and a half ounces of broccoli sprouts daily for two months may confer some protection against a rampant stomach bug that causes gastritis, ulcers and even stomach cancer.Citing their new “demonstration of principle” study, a Johns Hopkins researcher and an international team of scientists caution that eating sprouts containing sulforaphane did not cure infection by the bacterium Helicobacter pylori (H. pylori). They do not suggest that eating this or any amount of broccoli sprouts will protect anyone from stomach cancer or cure GI diseases.

Read more

bismuth appears safe for the treatment peptic ulcer disease

Bismuth compounds have been used for centuries in medicine. The discovery of H. pylori in 1983 led to renewed interest in bismuth compounds, because these were found to successfully treat the infection in combination with antibiotics. However, in the 1970s bismuth salts, used at high doses for prolonged periods, were found to lead to neurotoxicity. There has been no summary of evidence for the toxicity of bismuth when used for short periods as part of H. pylori eradication therapy.

Read more

Novel toxin receptor discovered for ulcer-causing stomach pathogen

Helicobacter pylori is one tough bug. It can survive in the human stomach, a zone with a pH somewhere between that of lemon juice and battery acid. Now researchers have discovered how an H. pylori toxin gets into cells, a feat that helps the bacterium live in one of the most inhospitable environments in the body.

Read more