title: [HLA, blood group, secretory factor, pepsinogen I, and Helicobacter pylori in duodenal ulcer patients].
abstract: Duodenal ulcer is a multifactorial entity where a genetic predisposition and extrinsic elements seem to concur in its origin. A series of genetic and extrinsic markers were determined in 50 patients with duodenal ulcer and 50 controls matched by age, sex and socioeconomical status. HLA antigens dit not have significant differences. Blood group O Rh+ was predominant (p < 0.01). Secretor status of antigen HBO in saliva was positive in 70% of patients (p < 0.001). Serum Pepsinogen I was increased in 85% of cases (p < 0.001). Immunoglobulin G anti H. pylori was positive in 62% of ulcerous (p < 0.001). The highest sensibility and negative predictive value was represented by increased serum pepsinogen levels (85%); the highest specificity and positive predictive value was to Ig G anti H. pylori (90 and 86%). These results affirm the polygenic character of the duodenal ulcer disease.
authors.affiliation: Departamento de Medicina, Universidad de Carabobo.
authors.forename: J
authors.initials: J
authors.lastname: Kolster
authors.forename: C
authors.initials: C
authors.lastname: Castro de Kolster
authors.forename: M
authors.initials: M
authors.lastname: Quintero
authors.forename: C
authors.initials: C
authors.lastname: Callegari
mesh_terms: D000017:ABO Blood-Group System / Q000235:genetics / Q000276:immunology; D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D002648:Child; D004381:Duodenal Ulcer / Q000097:blood / Q000235:genetics* / Q000276:immunology / Q000382:microbiology; D005260:Female; D006680:HLA Antigens / Q000235:genetics / Q000276:immunology; D016480:Helicobacter pylori / Q000276:immunology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010435:Pepsinogens / Q000097:blood; D012204:Rh-Hr Blood-Group System / Q000235:genetics / Q000276:immunology; D012680:Sensitivity and Specificity
chemical_list: D000017:ABO Blood-Group System; D006680:HLA Antigens; D010435:Pepsinogens; D012204:Rh-Hr Blood-Group System
vernacular_title: HLA, grupo sanguíneo, factor secretor, pepsinógeno I y Helicobacter pylori en ulcerosos duodenales.