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Background: Pathogenesis of type 1 diabetes mellitus is associated with the presence of specific autoantibodies and viral infection. Herein we aim to assess specific and nonspecific autoantibodies in newly diagnosed type 1 diabetes mellitus patients. Materials and Methods: In this case-control study 200 subjects were enrolled, classified into 100 newly diagnosed type 1 diabetes mellitus patients ages ranged from 1 to 16 years old, and 100 apparently health control age matched group. Serum anti-glutamic acid decarboxylase/tyrosine Phosphatase 2 (anti-GAD/IA2), anti-tissue transglutaminase (anti-tTG) and antinuclear antibodies were measured. Results: Of 100, 62(62%) were males, and 38(38%) were females. Anti-GAD/IA2, anti-tTG, and antinuclear antibodies were found to be significantly higher in the case than in the control group. Anti-GAD/IA2 and anti-tTG were associated with higher risk of type 1 diabetes mellitus (OR= 5.44, P= 0.000) and (OR=5.82, P= 0.009) respectively. Conclusion: Anti-GAD/IA2, anti-tTG and antinuclear antibodies are higher in type 1 diabetes mellitus patients. Moreover, anti-GAD/IA2 and anti-tTG are associated with a high risk of type 1 diabetes mellitus.

Ezeldine K Abdalhabib,1 Badr Alzahrani,1 Muhammad Saboor,2– 4 Alneil Hamza,1 Elyasa M Elfaki,1 Fehaid Alanazi,1 Fawaz O Alenazy,1 Abdulrahman Algarni,5 Ibrahim Khider Ibrahim,6 Hozifa A Mohamed,7 Ayman Hussein Alfeel,8 Nahla Ali Alshaikh3,4 1Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia; 2Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates; 3Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia; 4Medical Research Center (MRC), Jazan University, Jazan, Saudi Arabia; 5Department of Medical Laboratory Technology, College of Applied Medical Sciences, Northern Border University, Arar, Saudi Arabia; 6Department of Hematology, Faculty of Medical Laboratory Sciences, Al Neelain University, Khartoum, Sudan; 7Department of Molecular Biology, Faculty of Medical Laboratory Sciences, Al Neelain University, Khartoum, Sudan; 8Department of Medical Laboratory Sciences, College of Health Sciences, Gulf Medical University, Ajman, United Arab EmiratesCorrespondence: Ayman Hussein Alfeel, Department of Medical Laboratory Sciences, College of Health Sciences, Gulf Medical University, Ajman, United Arab Emirates, Email aymanalfeel@gmail.com Muhammad Saboor, Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates, Tel +971 56 443 2008, Email msaboor@jazanu.edu.saPurpose: Single-nucleotide polymorphism (SNP) in the promoter region of the IL-10 gene can increase susceptibility to tumor development. The current study aimed to explore the genotypic frequency of interleukin-10 (IL-10) rs1800896 polymorphism in newly diagnosed adult patients with acute lymphoblastic leukemia (ALL) and validate whether this SNP is a risk factor for adult ALL.Patients and Methods: This case–control study was based on a subset of newly diagnosed 154 adult patients with ALL recruited from the Radiation and Isotope Center in Khartoum (RICK) and 154 healthy controls from the same geographical area. Genomic DNA was used for the genotyping of rs1800896 polymorphism through allele-specific polymerase chain reaction (PCR) assays.Results: The genotypic frequencies of rs1800896 showed a statistically significant association of AG and AA genotypes with adult ALL (p< 0.001). Combined genotypes AG+GG vs AA also showed a positive association of rs1800896 with adult ALL (OR=4.89). The allelic frequencies of G and A did not show any significant difference in adult patients with ALL compared with the control group. AG rs1800896 genotype showed an increased risk of B and T ALL (OR=2.51 and 4.70, respectively). Age at diagnosis, gender, and immunophenotype (B vs T ALL) did not exhibit any association of rs1800896 with ALL in this patient group.Conclusion: rs1800896 polymorphism is associated with an increased risk of ALL in adult patients irrespective of the age at diagnosis, gender, and immunophenotype of ALL.Keywords: acute lymphoblastic leukemia, polymorphism, IL-10, – 1082 (A>G), rs1800896

Ezeldine K Abdalhabib,1 Denise E Jackson,2 Badr Alzahrani,1 Elyasa M Elfaki,1 Alneil Hamza,1 Fehaid Alanazi,1 Elryah I Ali,3 Abdulrahman Algarni,3 Ibrahim Khider Ibrahim,4 Muhammad Saboor5,6 1Department of Clinical Laboratory Sciences, College of Applied Medical Sciences-Al Qurayyat, Jouf University, Sakaka, Saudi Arabia; 2Thrombosis and Vascular Diseases Laboratory, School of Health and Biomedical Sciences, RMIT University, Victoria, Australia; 3Department of Medical Laboratory Technology, College of Applied Medical Sciences, Northern Border University, Arar, Saudi Arabia; 4Department of Hematology, Faculty of Medical Laboratory Sciences, Al Neelain University, Khartoum, Sudan; 5Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia; 6Medical Research Center (MRC), Jazan University, Jazan, Saudi ArabiaCorrespondence: Muhammad SaboorDepartment of Medical Laboratory Technology, Faculty of Applied Medical Science, Jazan University, Jazan, Saudi ArabiaTel +966 54 495 9029Email msaboor@jazanu.edu.saPurpose: Glutathione S-transferases (GSTT1 and GSTM1) are instrumental in detoxification process of activated carcinogens. Nucleotide excision repair is carried out by DNA helicase encoded by xeroderma pigmentosum group D (XPD) genes and aberrations in the XPD gene predisposes to increased risk of cancer. The present study aimed to investigate GSTT1, GSTM1 and XPD polymorphisms in newly diagnosed chronic myeloid leukemia (CML) patients and to examine the association of these polymorphisms with the risk of developing CML.Patients and Methods: This case–control study was carried out from June 2019 to August 2021 involving 150 newly diagnosed patients with CML and an equal number of randomly selected age- and sex-matched healthy individuals. A multiplex-PCR assay was used to genotype GSTT1 null and GSTM1 null polymorphisms. XPD gene polymorphism was detected by PCR-RFLP using predesigned gene-specific primers.Results: GSTT1 and GSTM1 null polymorphisms were detected in 42.7% and 61.3% of cases, respectively, compared to 18% and 35.3% for controls. The combination of both GST null polymorphisms revealed a significant association with CML. Frequencies of XPD Lys751Gln genotypes in cases were 62.7% heterozygous Lys/Gln, 24% homozygous Lys/Lys and 13.3% homozygous Gln/Gln, while in the controls were 74.7%, 20%, and 5.3%, respectively. Significant differences were also noted regarding the combination of GSTT1/GSTM1 null with XPD Lys/Lys, and GSTM1 null with XPD Lys/Lys.Conclusion: In conclusion, GSTT1 null, GSTM1 null and XPD polymorphisms showed positive association with the risk of development of CML. Furthermore, age and gender did not exhibit any association with the studied polymorphisms, while CML phases were associated with GSTT1 null polymorphism.Keywords: GSTT1 null polymorphism, GSTM1, XPD, chronic myeloid leukemia