Modulation of Type 1 Diabetes Susceptibility by Tumor Necrosis Factor Alpha −308 G/A and Lymphotoxin Alpha +249 A/G Haplotypes and Lack of Linkage Disequilibrium with Predisposing DQB1-DRB1 Haplotypes in Bahraini Patients

Author:

Stayoussef Mouna1234,Al-Jenaidi Fayza A.1234,Al-Abbasi Abduljabbar1234,Al-Ola Khadija1234,Khayyat Haya1234,Mahjoub Touhami1234,Almawi Wassim Y.1234

Affiliation:

1. University of Monastir, Monastir, Tunisia

2. College of Medicine and Medical Sciences, Arabian Gulf University

3. Department of Pediatrics, Salmaniya Medical Complex, Manama, Bahrain

4. Bahrain Defense Forces Hospital, Rifaa, Bahrain

Abstract

ABSTRACT Tumor necrosis factor alpha (TNF-α) −308 G/A and lymphotoxin alpha (LTα) +249 A/G single-nucleotide polymorphisms were investigated in 228 type 1 diabetes mellitus (T1DM) patients and 240 controls. Only LTα +249G allele and +249G/+249G genotype frequencies were higher among patients, and no linkage disequilibrium was found between TNF-α/LTα alleles and susceptible/protective DRB1-DQB1 haplotypes. TNF-α/LTα T1DM-susceptible (−308G/+249G) and protective (−308G/+249A) haplotypes were identified.

Publisher

American Society for Microbiology

Subject

Microbiology (medical),Clinical Biochemistry,Immunology,Immunology and Allergy

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