title: [Antibodies to Helicobacter pylori in gastric diseases].
abstract: OBJECTIVE
  To study the count of antibodies to Helicobacter pylori (ABHP), their role in diagnosis and prognosis in gastric diseases (GD).
  
  
  METHODS
  Enzyme immunoassay (kits from EcoLab and Vektor-Best, Russia) was used to measure serum levels of ABHP (IgG, IgA, IgM+IgG+IgA) in 46 GD patients.
  
  
  RESULTS
  It is shown that GD are characterized by a regular rise of serum ABHP which are serological markers of Helicobacter pylori infection. Percentage and absolute value of IgG-HP were the highest (78%, mean titer 1:604 vs control 1:110) as well as (IgM+IgG+IgA) antibodies to CagA-HP (approximately 82%, mean titer 1:160 vs. control 1:10); the level of IgA-HP was elevated by 39%, mean titer 1:442, control 1:120. Elevated levels of IgG-HP reflect intensity of inflammatory processes, IgA-HP--atrophic processes, IgM+IgG+IgA)-CagA-HP--proliferative processes in GD.
  
  
  CONCLUSIONS
  High concentrations of ABHP are a diagnostic criterion of HP infection, reflect intensity of infectious, inflammatory, atrophic and proliferative processes in GD. Long-term persistence of elevated ABHP concentrations is one of the indications for application of antichelicobacter therapy in GD associated with HP while ABHP fall is an additional criterion of efficacy of the treatment.
authors.forename: L B
authors.initials: LB
authors.lastname: Lazebnik
authors.forename: T M
authors.initials: TM
authors.lastname: Tsaregorodtseva
authors.forename: T I
authors.initials: TI
authors.lastname: Serova
authors.forename: G N
authors.initials: GN
authors.lastname: Sokolova
authors.forename: M V
authors.initials: MV
authors.lastname: Klishina
authors.forename: A V
authors.initials: AV
authors.lastname: Gubina
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood*; D005260:Female; D016480:Helicobacter pylori / Q000276:immunology*; D006801:Humans; D007124:Immunoenzyme Techniques; D007070:Immunoglobulin A / Q000276:immunology; D007074:Immunoglobulin G / Q000276:immunology; D007075:Immunoglobulin M / Q000276:immunology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D013272:Stomach Diseases / Q000097:blood* / Q000382:microbiology
chemical_list: D000907:Antibodies, Bacterial; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M