Journal of Research in Applied and Basic Medical Sciences

en Assessment of DRB1 and DQB1 genotype frequencies in type 1 diabetes: a gender-based study in Sudanese children تخصصي Special پژوهشي orginal article Background & Aims: Type 1 diabetes mellitus (T1DM) is an autoimmune condition characterized by the destruction of pancreatic β-cells. While environmental factors and autoantibodies play a role, genetic predisposition, particularly involving HLA class II alleles (DR and DQ), is significant. This study aimed to evaluate the frequency of DRB1 and DQB1 genotypes associated with T1D, with a focus on gender differences. Materials & Methods: A total of 187 Sudanese subjects, aged 5 to 18 years, were enrolled, including 87 T1D cases and 100 non-diabetic controls. The study was conducted in diabetes hospitals in Khartoum State. HLA gene polymorphisms were assessed using the allele-specific refractory mutation system-polymerase chain reaction (ARMS-PCR) method. Results: Genotype frequencies for C/C, G/G, and G/C were 11.8%, 66.7%, and 21.6% in females, and 10.2%, 67.3%, and 22.4% in males, respectively. Statistical analysis showed no significant gender-related differences in genotype distributions (Chi-square, p = 0.968). Conclusion: The study found no significant association between genotype distributions and gender in Sudanese children with T1D. This suggests that gender does not significantly influence the distribution of DRB1 and DQB1 genotypes related to T1D in the study population. DRB1 and DQB1 Alleles, Gender Differences, Genetic Predisposition, HLA Genotypes, Type 1 Diabetes Mellitus (T1DM) 420 426 http://ijrabms.umsu.ac.ir/browse.php?a_code=A-10-438-1&slc_lang=en&sid=1 Hiba Omer AbdelRhman Hussein hibaomer2880@gmail.com 10031947532846003607 10031947532846003607 No Faculty of Graduate Studies and Scientific Research, National University, Sudan Sababil Salih Abdalla sababil990@gmail.com 10031947532846003608 10031947532846003608 No Faculty of Medical Laboratory Sciences, National University, Sudan Sakeena NourEldine Salih skinasalih2018@gmail.com 10031947532846003609 10031947532846003609 No Assistant Professor, Pediatrics Department, National University, Sudan/ Assistant Professor, Pediatrics Department, Al-Neelain University, Sudan/ Consultant Pediatrician, Bashair Hospital, Sudan Abdelkarim A. Abdrabo abdrabokarim@gmail.com 10031947532846003610 10031947532846003610 Yes Department of Clinical Chemistry, Faculty of Applied Medical Science, Buraydah Private Colleges, Saudi Arabia Mohamed Abdelgadir Mahdi mohamed.gadir@yahoo.com 10031947532846003611 10031947532846003611 No Faculty of Medical Laboratory Sciences, National University, Sudan