PMID- 34258292 OWN - NLM STAT- MEDLINE DCOM- 20220117 LR - 20220117 IS - 2314-6753 (Electronic) IS - 2314-6745 (Print) VI - 2021 DP - 2021 TI - Association of HLA-B Gene Polymorphisms with Type 2 Diabetes in Pashtun Ethnic Population of Khyber Pakhtunkhwa, Pakistan. PG - 6669731 LID - 10.1155/2021/6669731 [doi] LID - 6669731 AB - Human leukocyte antigen (HLA) system is the most polymorphic and gene dense region of human DNA that has shown many disease associations. It has been further divided into HLA classes I, II, and III. Polymorphism in HLA class II genes has been reported to play an important role in the pathogenesis of type 1 diabetes (T1D). It also showed association with T2D in different ethnic populations. However, a little is known about the relationship of HLA class I gene polymorphism and T2D. This study has evaluated the association of HLA-B (class I gene) variants with T2D in Pashtun ethnic population of Khyber Pakhtunkhwa. In the first phase of the study, whole exome sequencing (WES) of 2 pooled DNA samples was carried out, and DNA pools used were constructed from 100 diabetic cases and 100 control subjects. WES results identified a total of n = 17 SNPs in HLA-B gene. In the next phase, first 5 out of n = 17 reported SNPs were genotyped using MassARRAY(R) system in order to validate WES results and to confirm association of selected SNPs with T2D. Minor allele frequencies (MAFs) and selected SNPsxT2D association were determined using chi-square test and logistic regression analysis. The frequency of minor C allele was significantly higher in the T2D group as compared to control group (45.0% vs. 13.0%) (p = 0.006) for rs2308655 in HLA-B gene. No significant difference in MAF distribution between cases and controls was observed for rs1051488, rs1131500, rs1050341, and rs1131285 (p > 0.05). Binary logistic regression analyses showed significant results for SNP rs2308655 (OR = 2.233, CI (95%) = 1.223-4.077, and p = 0.009), while no considerable association was observed for the other 4 SNPs. However, when adjusted for these variants, the association of rs2308655 further strengthened significantly (adjusted OR = 7.485, CI (95%) = 2.353-23.812, and p = 0.001), except for rs1131500, which has no additive effect. In conclusion, the finding of this study suggests rs2308655 variant in HLA-B gene as risk variant for T2D susceptibility in Pashtun population. CI - Copyright (c) 2021 Asif Jan et al. FAU - Jan, Asif AU - Jan A AUID- ORCID: 0000-0003-3880-5579 AD - Department of Pharmacy, University of Peshawar, Pakistan. FAU - Saeed, Muhammad AU - Saeed M AD - Department of Pharmacy, University of Peshawar, Pakistan. FAU - Afridi, Muhammad Hussain AU - Afridi MH AD - Diabetes and Endocrinology Unit, Hayatabad Medical Complex Peshawar, Pakistan. FAU - Khuda, Fazli AU - Khuda F AD - Department of Pharmacy, University of Peshawar, Pakistan. FAU - Shabbir, Muhammad AU - Shabbir M AD - Internal Medicine, College of Medicine, Shaqra University, Saudi Arabia. FAU - Khan, Hamayun AU - Khan H AD - Department of Pharmacy, University of Peshawar, Pakistan. FAU - Ali, Sajid AU - Ali S AD - Department of Biotechnology, Abdul Wali Khan University, Mardan, Pakistan. FAU - Hassan, Muhammad AU - Hassan M AD - Pakistan Air Force Hospital, Fort Munro, Pakistan. FAU - Samiullah AU - Samiullah AD - Department of Pharmacy, University of Peshawar, Pakistan. FAU - Akbar, Rani AU - Akbar R AD - Department of Pharmacy, Abdul Wali Khan University, Mardan, Pakistan. FAU - Zakiullah AU - Zakiullah AUID- ORCID: 0000-0001-7932-9498 AD - Department of Pharmacy, University of Peshawar, Pakistan. LA - eng PT - Journal Article DEP - 20210616 PL - England TA - J Diabetes Res JT - Journal of diabetes research JID - 101605237 RN - 0 (HLA-B Antigens) SB - IM MH - Aged MH - Diabetes Mellitus, Type 2/*genetics MH - Ethnicity/*genetics MH - Female MH - Genetic Predisposition to Disease MH - HLA-B Antigens/*genetics MH - Humans MH - Male MH - Middle Aged MH - Pakistan MH - Polymorphism, Single Nucleotide PMC - PMC8254654 COIS- Authors declare no competing interests. EDAT- 2021/07/15 06:00 MHDA- 2022/01/18 06:00 PMCR- 2021/06/16 CRDT- 2021/07/14 07:09 PHST- 2021/01/03 00:00 [received] PHST- 2021/04/20 00:00 [revised] PHST- 2021/06/07 00:00 [accepted] PHST- 2021/07/14 07:09 [entrez] PHST- 2021/07/15 06:00 [pubmed] PHST- 2022/01/18 06:00 [medline] PHST- 2021/06/16 00:00 [pmc-release] AID - 10.1155/2021/6669731 [doi] PST - epublish SO - J Diabetes Res. 2021 Jun 16;2021:6669731. doi: 10.1155/2021/6669731. eCollection 2021.