title: HLA and chronic active hepatitis.
abstract: 42 patients (33 males and 9 females) with chromic active hepatitis (CAH) mostly HBsAg+, were typed for 24 alleles of the A and B loci. Diagnosis was performed according to the criteria outlined by the European Association for the Study of the Liver. The increased frequency of HLA-A3 (47.6% instead of 19.1% in 266 healthy controls) is significant after correction. The relative risk is 3.83. The phenotypic association A3/Bw35 is also increased (28.5% instead of 6.0 in the control group). The risk of the A3/Bw35 association is 6.25. The risk of A3 calculated in patients lacking Bw35 is 1.6. A family study in 5 patients over 5 showed an haplotype A3/Bw35.
mesh_terms: D002908:Chronic Disease; D005260:Female; D006680:HLA Antigens / Q000032:analysis; D006505:Hepatitis / Q000276:immunology*; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006525:Hepatitis, Viral, Human / Q000276:immunology*; D006649:Histocompatibility Antigens / Q000032:analysis; D006801:Humans; D008297:Male; D010641:Phenotype; D012306:Risk
chemical_list: D006680:HLA Antigens; D006511:Hepatitis B Antigens; D006649:Histocompatibility Antigens