low prevalence of the intact cag pathogenicity island in clinical isolates of helicobacter pylori in karachi, pakistan.clinical diseases that follow helicobacter pylori infection are associated with expression of the caga gene, a part of cytotoxin-associated gene pathogenicity island (cag-pai). this study aims to determined whether or not the presence of caga is associated with the presence of complete cag-pai and to evaluate inflammatory changes associated with the five loci in the cag-pai of h. pylori comprising caga, caga promoter region (cagap), cage, cagt and the left end of the caga gene (lec). h. pylori i ...200919839224
rising incidence of gastric malignancies in karachi, 1995- 2002.south asia is an enigma for gastric cancer, a low risk region with a contradictory high prevalence for helicobacter pylori.200919469622
helicobacter pylori infection: approach of primary care physicians in a developing country.the aim of the study was to assess the knowledge and practices of primary care physicians in diagnosis and management of helicobacter pylori (h. pylori) infection in developing country.200919358721
association of helicobacter pylori with carcinoma of note the association of helicobacter pylori in patients having carcinoma of stomach.200717867254
helicobacter pylori colonization in infants in a peri-urban community in karachi, pakistan.the prevalence and incidence of helicobacter pylori in children in pakistan is not known.200516056098
prevalence of non-helicobacter pylori duodenal ulcer in karachi, determine the prevalence of non-helicobacter pylori (h pylori)-related duodenal ulcer in patients with acid-peptic diseases.200515962375
frequency of helicobacter pylori antibodies in porto-systemic study the frequency of helicobacter pylori antibodies in patients presenting with porto-systemic encephalopathy due to liver disease.200415353135
prevalence of helicobacter pylori antibodies in endoscopy personnel and non-medical volunteers of karachi.prevalence of helicobacter pylori (hp) is high in developing countries. as endoscopy personnel are at greater risk of exposure to gastric secretions, they are apparently at higher risk of acquiring this infection. the aim of this study was to determine prevalence of hp antibodies in endoscopy staff and compare it with non-medical volunteers and assess any additional risk of occupational exposure to hp in the former group. thirty-three subjects working in endoscopy suites of different hospitals o ...199810067023
association of helicobacter pylori with acid peptic disease in karachi.the prevalence of h. pylori infection in 200 dyspeptic patients undergoing upper g.i. endoscopy was investigated by histology and rapid urease test. h. pylori was associated with 86% cases of chronic gastritis, 84.6% cases of duodenal ulcers and 78.5% of gastric ulcers. none of the 15 histologically normal gastric biopsies showed h. pylori.19902123260
increasing incidence of non-hodgkin's lymphoma in karachi, 1995-2002.this first population-based study of non- hodgkin lymphoma (nhl) from any region in pakistan, provides an overview of the incidence pattern and time trends in karachi and generates hypotheses for future experimental research. epidemiological data for 429 incident (1(st) jan 1995 to 31(st) dec 2002), microscopically verified nodal and extra-nodal nhl cases, registered at the karachi cancer registry (kcr) for karachi south, were reviewed. the age standardized incidence rate (asir) was 5.3/100,000 ...200516236001
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