Fourteen patients with Helicobacter pylori infection were treated with omeprazole capsules 20 mg and amoxycillin capsules 1000 mg twice daily for 14 days and 14 patients with omeprazole capsules 20 mg and placebo twice daily for 14 days. Samples from saliva, dental plaque and faeces and biopsies from antrum and corpus were analysed in order to determine the ecological changes in the normal micr...

Two coliphages, AR1 and LG1, were characterized based on their morphological, host range, and genetic properties. Transmission electron microscopy showed that both phages belonged to the Myoviridae; phage particles of LG1 were smaller than those of AR1 and had an isometric head 68 nm in diameter and a complex contractile tail 111 nm in length. Transmission electron micrographs of AR1 showed pha...

The immunoglobulin (Ig) protein domain is widespread in nature having a well-recognized role in proteins of the immune system. In this review, we describe the proteins containing Ig-like domains in Escherichia coli and enterobacteria, reporting their structural and functional properties, protein folding, and diverse biological roles. In addition, we cover the expression of heterologous Ig domai...

Anhydrobiotic engineering aims to increase the level of desiccation tolerance in sensitive organisms to that observed in true anhydrobiotes. In addition to a suitable extracellular drying excipient, a key factor for anhydrobiotic engineering of gram-negative enterobacteria seems to be the generation of high intracellular concentrations of the nonreducing disaccharide trehalose, which can be ach...

This study assessed the occurrence of endotoxins, cyanobacteria and enterobacteria in untreated drinking water stored in domestic water containers by rural households in South Africa. Endotoxins, cyanobacteria, total coliforms and Escherichia coli were measured in the following numbers and ranges in container-water samples: 4-54 microg l(-1), 69-64,505 cells ml(-1), 9,000-280,000 CFU/100 ml and...

MURATA, N., and M. P. STARR. 1974. Intrageneric clustering and divergence of Errvblia strains from plants and man in the light of deoxyribonucleic acid segmental homology. Can. J. Microbiol. 20: 1545-1565. The relationships among Erwinia species (originating from plants and man) and other enterobacteria were examined in terms of DNA-DNA segmental homology. All of the organisms studied show a "c...

Clostridium difficile infection (CDI) is a major cause of infectious diarrhea. Conventional antibiotics are not universally effective for all ribotypes, and can trigger dysbiosis, resistance and recurrent infection. Thus, novel therapeutics are needed to replace and/or supplement the current antibiotics. Here, we describe the activity of an optimised 4-phage cocktail to clear cultures of a clin...

BACKGROUND AND AIMS The colonic microflora is involved in the pathogenesis of Crohn's disease (CD) but less than 30% of the microflora can be cultured. We investigated potential differences in the faecal microflora between patients with colonic CD in remission (n=9), patients with active colonic CD (n=8), and healthy volunteers (n=16) using culture independent techniques. METHODS Quantitative...

Previous animal and human studies have shown protective effects of Ca on the resistance to enteropathogenic infections. Most interventions were performed with calcium phosphate and little is known about the protective effect of other dietary sources of Ca. Therefore, we investigated the efficacy of several Ca salts to enhance intestinal resistance to Salmonella enteritidis infection. Rats (n 7-...

Cockroaches carry microorganisms to sterilized materials, equipment and non-contaminated food in hospitals and in homes. Hence, they are regarded as major microbial vectors. We isolated and identified microorganisms from living cockroaches captured from a Brazilian health care institution and we determined the antimicrobial susceptibility profile of the isolates. Following collection, cockroach...