Abstract:
AIM:To report on our large German collective and updated data of 142 patients with autoimmune hepatitis (AIH) type 1. METHODS:Key investigations performed were liver biopsy, serum autoantibodies as well as serum markers such as IgG and elevated transaminases. Antinuclear antigen (ANA) and smooth muscle antigen (SMA) autoantibodies characterized type 1 AIH. Type 3 (AIH) was solely characterized by the occurrence of soluble liver antigen/liver-pancreas antigen (SLA/LP) autoantibodies either with or without ANA or SMA autoantibodies. RESULTS:Most prevalent HLAs were A2 (68 patients, 48%), B8 (63 patients, 44%), C7 (90 patients, 63%), DR3 (49 patients, 38%), DR4 (49 patients, 38%) and DQ2 (42 patients, 30%). Compared to the Italian and North American patients, we found fewer patients with a DQ2 subtype. Furthermore, the B8-DR3-DQ2 human leucocyte antigen (HLA) was also less prominent compared to the North American patients. However, prevalences of B8, DR3, DR4, DR7, DR11 and DR13 were comparable to the Italian and North American patients. Furthermore, we report on an additional subgroup of patients with SLA/LP positive AIH. Generally, in this subgroup of patients the same HLA subtypes were favoured as the AIH type 1. CONCLUSION:Although HLA subtypes were comparable between these three collectives, the German patients were distinct from the Italian and North American patients with respect to DQ2 and from the North American patients with respect to B8-DR3-DQ2 HLA. A clinical correlation, e.g. difference in severity or treatability of AIH type 1, has yet to be determined.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Teufel A,Wörns M,Weinmann A,Centner C,Piendl A,Lohse AW,Galle PR,Kanzler Sdoi
10.3748/wjg.v12.i34.5513subject
Has Abstractpub_date
2006-09-14 00:00:00pages
5513-6issue
34eissn
1007-9327issn
2219-2840journal_volume
12pub_type
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