title: Close association of HLA-B52 and HLA-B44 antigens in Israeli Arab adolescents with recurrent aphthous stomatitis.
abstract: OBJECTIVE
  To investigate the incidence and clinical features of recurrent aphthous stomatitis (RAS) among Israeli Arab adolescents and to determine the HLA typing profile in affected subjects.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  Junior high school in the largest Arab town in Israel.
  
  
  METHODS
  Four hundred seventy-seven Israeli Arab junior high school students filled out a questionnaire. Students who reported more than 4 episodes of RAS during the previous year were interviewed by telephone. Those whose responses were confirmed were invited to the clinic. Of these, 22 were chosen at random for HLA typing. Findings were compared with those in 117 healthy Israeli Arabs who were candidate donors of bone marrow to patients at the Institute of Hematology-Oncology, Schneider Children's Medical Center of Israel, Petah Tiqva.
  
  
  RESULTS
  Recurrent aphthous stomatitis was confirmed in 80 subjects (16.7%). Of the 22 patients who underwent HLA typing, 7 (31.4%) had HLA-B52 antigens and 8 (36.4%) had HLA-B44 antigens; corresponding figures for the control group were 10 subjects (8.5%) (P = .007) and 9 subjects (7.7%) (P = .001), respectively.
  
  
  CONCLUSIONS
  There is a close association of HLA-B52 and HLA-B44 in Israeli Arab youths with RAS. Long-term follow-up is needed to determine the relationship between RAS and Behçet disease.
authors.affiliation: The Bridge to Peace Community Pediatric Center, Taibe, Israel.
authors.forename: L
authors.initials: L
authors.lastname: Jaber
authors.forename: A
authors.initials: A
authors.lastname: Weinberger
authors.forename: T
authors.initials: T
authors.lastname: Klein
authors.forename: I
authors.initials: I
authors.lastname: Yaniv
authors.forename: M
authors.initials: M
authors.lastname: Mukamel
mesh_terms: D000293:Adolescent; D003430:Cross-Sectional Studies; D005260:Female; D015235:HLA-B Antigens / Q000032:analysis / Q000276:immunology*; D006801:Humans; D007557:Israel / Q000453:epidemiology; D008297:Male; D008877:Middle East / Q000208:ethnology; D012008:Recurrence; D013281:Stomatitis, Aphthous / Q000453:epidemiology / Q000276:immunology*
chemical_list: D015235:HLA-B Antigens