PMID- 34295985 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220425 IS - 2392-1099 (Print) IS - 2449-8238 (Electronic) IS - 2392-1099 (Linking) VI - 7 IP - 2 DP - 2021 Jun TI - The association between juvenile autoimmune hepatitis and HLA-DRB1 alleles: Iraqi tertiary center experience. PG - 178-182 LID - 10.5114/ceh.2021.106865 [doi] AB - AIM OF THE STUDY: To highlight the impact of the human leukocyte antigen (HLA) allele on susceptibility and prevention of autoimmune hepatitis (AIH) in Iraqi children. MATERIAL AND METHODS: We conducted a prospective study from children attending the Gastroenterology and Hepatology Clinic of Children's Welfare Teaching Hospital over five years from the first of September 2015 to the thirty-first of August 2020. It included 19 patients with AIH; their age (at time of diagnosis) ranged between 3 and 16 years, with a female predominance of 78.9%. The diagnosis was made by clinical, serological, and histological features. In addition, 20 age- and sex-matched unrelated subjects of the same ethnic background were selected randomly from healthy individuals undergoing checkup as controls. RESULTS: 19 patients diagnosed with AIH were included in this study, and 20 age- and sex-matched healthy controls, with a female predominance of 78.9%. The commonest autoantibodies found were smooth muscle antibody (SMA) in 13 (68.4%), antinuclear antibody (ANA) in 11 (57.9%). In AIH type 1, PCR showed higher frequencies among patients with HLA-DRB1*03, HLA-DRB1*04, HLA-DRB1*13 alleles in patients with AIH; moreover DRB1*11 and DRB1*15 were less frequent than in the control group. Frequency of HLA-DRB1*04 was 28% and HLA-DRB1*13 was 20% in AIH type 2 patients; HLA-DRB1*13 and HLA-DRB5 showed frequency of 25% for both and HLA-DRB4 frequency was 18.7%. CONCLUSIONS: HLA-DRB1*13, DRB1*04, and DRB1*03 are susceptibility alleles for the development of AIH type 1, while HLA-DRB1*13, HLA-DRB4 and DRB5 are susceptibility alleles for the development of AIH type 2 in Iraqi children. CI - Copyright (c) 2021 Clinical and Experimental Hepatology. FAU - Ibraheem, Mohammad Fadhil AU - Ibraheem MF AD - College of Medicine, University of Baghdad, Iraq. FAU - Ahmed, Shaymaa Jamal AU - Ahmed SJ AD - College of Medicine, University of Baghdad, Iraq. LA - eng PT - Journal Article DEP - 20210630 PL - Poland TA - Clin Exp Hepatol JT - Clinical and experimental hepatology JID - 101703431 PMC - PMC8284173 OTO - NOTNLM OT - HLA OT - Iraqi children OT - autoimmune hepatitis OT - clinical features COIS- The authors declare no conflict of interest. EDAT- 2021/07/24 06:00 MHDA- 2021/07/24 06:01 PMCR- 2021/06/01 CRDT- 2021/07/23 06:53 PHST- 2021/01/09 00:00 [received] PHST- 2021/02/10 00:00 [accepted] PHST- 2021/07/23 06:53 [entrez] PHST- 2021/07/24 06:00 [pubmed] PHST- 2021/07/24 06:01 [medline] PHST- 2021/06/01 00:00 [pmc-release] AID - 44373 [pii] AID - 10.5114/ceh.2021.106865 [doi] PST - ppublish SO - Clin Exp Hepatol. 2021 Jun;7(2):178-182. doi: 10.5114/ceh.2021.106865. Epub 2021 Jun 30.