BACKGROUND The lipopolysaccharide of Helicobacter pylori plays an important role in colonization and pathogenicity. The present study sought to compare structural and biological features of lipopolysaccharides from gastric and enterohepatic Helicobacter spp. not previously characterized. MATERIALS AND METHODS Purified lipopolysaccharides from four gastric Helicobacter spp. (H. pylori, Helicob...

Helicobacter pylori is a spiral-shaped gram-negative bacterium that infects half of the world’s population and is the main cause of chronic gastritis, gastric ulcer and gastric malignancies including gastric adenocarcinoma and mucus-associated lymphoid tissue (MALT) lymphoma [1,2]. Helicobacter pylori is the most common human pathogen and a successful pathogen and has been specifically transmit...

Helicobacter pylori is a spiral-shaped gram-negative bacterium that infects half of the world’s population and is the main cause of chronic gastritis, gastric ulcer and gastric malignancies including gastric adenocarcinoma and mucus-associated lymphoid tissue (MALT) lymphoma [1,2]. Helicobacter pylori is the most common human pathogen and a successful pathogen and has been specifically transmit...

PURPOSE Helicobacter pylori is the etiological agent in duodenal and peptic ulcers. The growing problem of antibiotic resistance by the organism demands the search for novel compounds, especially from natural sources. This study was conducted to evaluate the effect of Camellia sinensis extracts on the urease enzyme that is a major colonization factor for H. pylori. METHODS Minimum inhibitory ...

Helicobacter pylori is a spiral-shaped bacterium that grows in the digestive tract and may be present in more than half of the world's population. The clinical features of Helicobacter pylori range from asymptomatic gastritis to gastrointestinal malignancy. Mucosa-associated lymphoid tissue (MALT) lymphoma is a low-grade B-cell marginal zone lymphoma and Helicobacter pylori has been detected in...

BACKGROUND Helicobacter pylori is a common pathogen, and its prevalence varies with socioeconomic conditions (10-80%). It has recently been recognized as a class I carcinogen in relation to gastric cancer. The aim of this study was to investigate the presence of Helicobacter pylori in neoplasms of the colon by immunohistochemical methods. METHODS The polypectomy materials of 51 patients (19 m...

Helicobacter pylori (H. pylori) are a bacterium implicated in the etiology of stomach cancer and ulcers. Epidemiology of the antibiotic resistance of H. pylori appears to be higher. The study was to screen an efficiency substance of Chinese herbs, which could be used in preventing and treating H. pylori diseases. A total of 40 extracted efficiency substances from Chinese herbs were examined and...

INTRODUCTION Peppermint is an efficient medicinal plant for the treatment of diseases, and it also can be used to produce raw materials in the pharmaceutical industry. The purpose of the current study was to evaluate the effects of various levels of peppermint alcoholic extract on body-weight gain and blood biochemical parameters in adult male Wistar rats. METHODS This experiment was conducte...

Probiotic bacteria especially Lactobacillus spp. and Bifidobacterium exert suppressive effect on Helicobacter pylori. Cinnamon and licorice have been traditionally used for the treatment of gastric ulcer. The objectives of this study were to determine the effects of herbs on yogurt fermentation, the level of probiotic bacteria in yogurt during 28 days storage and the effect of herbal yogurt on ...