Dexter T Thompson

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BACKGROUND Helicobacter pylori infection is usually acquired in childhood, but little is known about its natural history in asymptomatic children, primarily due to the paucity of non-invasive diagnostic methods. H. pylori strains harboring cagA and specific alleles of hopQ and vacA are associated with increased risk for gastric cancer. Many studies of H.(More)
Helicobacter pylori strains display remarkable genetic diversity, and the presence of strains bearing the toxigenic vacA s1 allele, a complete cag pathogenicity island (PAI), cagA alleles containing multiple EPIYA phosphorylation sites, and expressing the BabA adhesin correlates with development of gastroduodenal disease in adults. To better understand the(More)
Modifications to the intravenous urogram are described. It is suggested that the time has come to rationalise the standard procedure. If an evaluation of the lower urinary tract is required, the voiding films may be modified to provide an intranvenous urodynamogram. If an evaluation of the upper urinary tract is directed at a specific question, then the(More)
Several studies have shown that isolates of Edwardsiella ictaluri obtained from infected channel catfish in the southeastern United States harbor two cryptic plasmids, designated pCL1 (5.7 kb) and pCL2 (4.9 kb). These isolates appear to be serologically homogeneous. To extend these studies, we focused our analyses on two isolates of nonictalurid origin.(More)
In a review of the literature on the subject of surgery for cylindroma of the bronchus no reference to an operation of this nature was found. The surgical procedures used in this condition have been pneumonectomy, carinal resection with left and right lung anastomosis, lobectomy, or bronchoscopic 'biopsy' resection of the tumour in an attempt to maintain an(More)
Involvement of the tracheobronchial tree by carcinoma of the oesophagus has always been regarded as a contra-indication to surgical resection or radiotherapy, the danger of producing an oesophagotracheal or bronchial fistula in the latter form of treatment precluding its use. Management has been confined, generally, to the insertion of a plastic tube(More)