We validated a commercial enzyme-linked immunosorbent assay for the detection of anti-CagA antibodies in Brazilian patients with Helicobacter pylori infection. The test presented high sensitivity (97.4%) and specificity (88.9%) when employed in patients without gastric carcinoma. However, in gastric carcinoma patients, the test was neither sensitive nor specific enough to detect cagA-positive H...

Applications Of The Immune-Histochemical Technique For Diagnosis Helicobacter Pylori From Gastric Biopsy Samples

The discovery of the spiral bacterium Helicobacter pylori and its causative role in gastric disease in humans has brought a dramatic change to gastroenterology. Although spiral bacteria have been known for more than a century to infect the stomachs of dogs and cats, recent research has been conducted mainly in the wake of interest in H. pylori. H. pylori has not been found in dogs and only very...

AIMS To investigate the localisation of Helicobacter pylori antigens and the expression of human heat shock proteins (HSP) in stomachs affected by MALT lymphoma. METHODS Surgically resected stomachs from 24 patients with MALT lymphoma were immunostained with anti-H pylori rabbit antibodies (ORP-1 and ORP-2) and anti-human HSP60 mouse monoclonal antibodies (mAb) (LK-1 and LK-2). RESULTS Foll...

Helicobacter pylori is a class 1 carcinogen that requires targeted therapeutic strategy. A number of drugs including proton pump inhibitors, antibiotics and antiprotozoals are available for the treatment of Helicobacter pylori infections like chronic gastric irritation, gastro duodenal ulcers and low grade gastric mucosa associated lymphoid tissue lymphoma. Clinical evaluation of these drugs ha...

Background: The major cause of peptic ulcer disease is helicobacter pylori (Hp), and it is also implicated in the pathogenesis of adenocarcinoma of the distal stomach and gastric lymphoma. The incidence of peptic ulcer disease, atrophic gastritis, and gastric adenocarcinoma are more common in people infected of cagA positive strains of Hp. The aim of this study was to determine the prevalence o...

Current therapies to heal peptic ulcers and eradicate Helicobacter pylori generally rely on a combination of antibacterial agents and anti-secretory drugs. The major factors affecting the outcome of these eradication therapies are the selection of antibiotic(s), daily dose, the dosage regimen(s) selected and duration of dosing and patient non-compliance due to side effects or number or tablets ...

In order to improve simultaneous detection and identification of Helicobacter genus in general and Helicobacter pylori specifically and reduce the number of amplifications needed, we established a multiplex PCR. In this study, two pairs of primers: Hcom1 and Hcom2 specific for Helicobacter genus, Hicd1 and Hicd2 specific for Helicobacter pylori species were used. To determine the sensitivity of...

BACKGROUND Most ulcers are caused, one can deduce, by Helicobacter pylori or by use of non-steroidal anti-inflammatory drugs (NSAIDs). Whether both together are worse than one alone is something that is quite unknown. AIM To study both factors in order to see wither they interact together positively. METHOD A case control study of ulcer bleeding in elderly patients chosen without weeding. ...