PMID- 31496112 OWN - NLM STAT- MEDLINE DCOM- 20200525 LR - 20200525 IS - 1751-2980 (Electronic) IS - 1751-2972 (Linking) VI - 20 IP - 11 DP - 2019 Nov TI - HLA-DQ genotypes relative risks for celiac disease in Arabs: A case-control study. PG - 602-608 LID - 10.1111/1751-2980.12817 [doi] AB - OBJECTIVES: It remains unknown what degree of risk is conferred by celiac disease (CD)-predisposing human leukocyte antigen (HLA)-DQ genotypes in Saudi Arabia compared with in Western countries. In this study, we aimed to determine the CD risk gradient associated with the HLA-DQ genotypes and to compare HLA-DQ genotypes between symptomatic patients with CD and screening-identified asymptomatic CD patients. METHODS: We enrolled three groups of subjects, including 46 CD children diagnosed consecutively over the past 10 years, 54 CD children diagnosed during a mass screening of schoolchildren, and 192 healthy controls. All the participants were typed for the HLA-DQA1 and HLA-DQB1 genes by polymerase chain reaction sequence-specific oligonucleotide probes. RESULTS: Comparing the patients with CD to controls, we identified 5 groups in the CD risk gradient: (i) very high risk associated with the DQ2.5/DQ8 genotype (odds ratio [OR] 46.93); (ii) high risk (homozygous DQ2.5, DQ2.5/DQ2.2; OR 4.12-5.04); (iii) intermediate risk (heterozygous DQ2.5, DQ8/DQ2.2; OR 1.61 and 1.67); (iv) low risk (DQ8, DQ2.2); and (v) very low risk (DQ2.x, DQX.5, DQX.x). Heterozygous DQ8 was more common in screening-identified group compared to symptomatic patients (13.0% vs 2.2%); however, other genotypes were very similar between the two groups. CONCLUSION: The highest risk of developing CD in our Saudi Arabia population is associated with the DQ2.5/DQ8 genotype. CI - (c) 2019 Chinese Medical Association Shanghai Branch, Chinese Society of Gastroenterology, Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine and John Wiley & Sons Australia, Ltd. FAU - Al-Hussaini, Abdulrahman AU - Al-Hussaini A AUID- ORCID: 0000-0003-4512-9070 AD - Division of Pediatric Gastroenterology, Children's Specialized Hospital, King Fahad Medical City, Riyadh, Saudi Arabia. AD - College of Medicine, Alfaisal University, Riyadh, Saudi Arabia. FAU - Eltayeb-Elsheikh, Nezar AU - Eltayeb-Elsheikh N AD - Department of Pathology and Laboratory Medicine, Division of Immunology, King Fahad Medical City, Riyadh, Saudi Arabia. FAU - Alharthi, Hanan AU - Alharthi H AD - Department of Pathology and Laboratory Medicine, Division of Immunology, King Fahad Medical City, Riyadh, Saudi Arabia. FAU - Osman, Awad AU - Osman A AD - Department of Pathology and Laboratory Medicine, Division of Immunology, King Fahad Medical City, Riyadh, Saudi Arabia. FAU - Alshahrani, Maram AU - Alshahrani M AD - Division of Pediatric Gastroenterology, Children's Specialized Hospital, King Fahad Medical City, Riyadh, Saudi Arabia. FAU - Sandogji, Ibrahim AU - Sandogji I AD - Division of Pediatric Gastroenterology, Children's Specialized Hospital, King Fahad Medical City, Riyadh, Saudi Arabia. FAU - Alrashidi, Sami AU - Alrashidi S AD - Division of Pediatric Gastroenterology, Children's Specialized Hospital, King Fahad Medical City, Riyadh, Saudi Arabia. FAU - Bashir, Muhammed Salman AU - Bashir MS AD - Department of Biostatistics, Research Services Administration, Research Center at King Fahad Medical City, Riyadh, Saudi Arabia. LA - eng GR - A-T-32-48/King Abdulaziz City for Science and Technology/ PT - Journal Article DEP - 20191022 PL - Australia TA - J Dig Dis JT - Journal of digestive diseases JID - 101302699 RN - 0 (HLA-DQ Antigens) SB - IM MH - Case-Control Studies MH - Celiac Disease/*etiology/genetics MH - Child MH - Child, Preschool MH - Cross-Sectional Studies MH - Female MH - Genotype MH - HLA-DQ Antigens/*genetics MH - Humans MH - Male MH - Risk OTO - NOTNLM OT - DQ2.2 OT - HLA typing OT - HLA-DQ2.5 OT - HLA-DQ8 OT - Saudi Arabia OT - celiac disease EDAT- 2019/09/10 06:00 MHDA- 2020/05/26 06:00 CRDT- 2019/09/10 06:00 PHST- 2019/03/15 00:00 [received] PHST- 2019/08/30 00:00 [revised] PHST- 2019/09/04 00:00 [accepted] PHST- 2019/09/10 06:00 [pubmed] PHST- 2020/05/26 06:00 [medline] PHST- 2019/09/10 06:00 [entrez] AID - 10.1111/1751-2980.12817 [doi] PST - ppublish SO - J Dig Dis. 2019 Nov;20(11):602-608. doi: 10.1111/1751-2980.12817. Epub 2019 Oct 22.