[serological profile of helicobacter pylori infection in the population of san luis (argentina)]. | we performed a seroepidemiological study of anti-helicobacter pylori igg by a commercial enzyme immunoassay kit (meridian diagnostics, usa) in 509 serum samples from 314 randomly selected asymptomatic subjects from among the population, and grouped into children (n = 124), adolescents (n = 74) and adults (n = 116), and in 195 serum samples from subjects presenting clinical gastric symptoms, grouped into children (n = 38) and adults (n = 157). the cut-off value was redefined and set at od450 = 0. ... | 2004 | 15056439 |
genotypic, phenotypic, and clinical characteristics of isolates of helicobacter pylori from san luis, argentina. | the vaca and caga genotypes of helicobacter pylori exhibited distinct geographic distribution and correlation with severity of disease. in the above genotypes (obtained from 150 h. pylori-positive patients--139 with gastritis, 10 with ulcer and 1 patient with gastric cancer) combinations vaca s1/m1 and s2/m2 were detected using pcr in 75 and 25% of isolates, respectively, in patients with chronic gastritis. the of s1/m1 and s2/m2 combinations were also detected from ulcers (60 and 40%, respectiv ... | 2007 | 18298050 |
analysis of resistance to clarithromycin and icea status in helicobacter pylori isolates from san luis, argentina. | | 2006 | 17046207 |