Clinical and Vaccine Immunology, February 2008, p. 379-381, Vol. 15, No. 2
1071-412X/08/$08.00+0 doi:10.1128/CVI.00410-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.
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
Mouna Stayoussef,1
Fayza A. Al-Jenaidi,2,3
Abduljabbar Al-Abbasi,2,3
Khadija Al-Ola,3
Haya Khayyat,4
Touhami Mahjoub,1 and
Wassim Y. Almawi2*
University of Monastir, Monastir, Tunisia,1
College of Medicine and Medical Sciences, Arabian Gulf University,2
Department of Pediatrics, Salmaniya Medical Complex, Manama, Bahrain,3
Bahrain Defense Forces Hospital, Rifaa, Bahrain4
Received 9 October 2007/
Accepted 25 October 2007
Tumor necrosis factor alpha (TNF-
) –308 G/A and lymphotoxin alpha (LT
) +249 A/G single-nucleotide polymorphisms were investigated in 228 type 1 diabetes mellitus (T1DM) patients and 240 controls. Only LT
+249G allele and +249G/+249G genotype frequencies were higher among patients, and no linkage disequilibrium was found between TNF-
/LT
alleles and susceptible/protective DRB1-DQB1 haplotypes. TNF-
/LT
T1DM-susceptible (–308G/+249G) and protective (–308G/+249A) haplotypes were identified.
* Corresponding author. Mailing address: Department of Medical Biochemistry, College of Medicine and Medical Sciences, Arabian Gulf University, P.O. Box 22979, Manama, Bahrain. Phone: 973-39717118. Fax: 973-17271090. E-mail: wyalmawi{at}yahoo.co.uk
Published ahead of print on 7 November 2007.
Clinical and Vaccine Immunology, February 2008, p. 379-381, Vol. 15, No. 2
1071-412X/08/$08.00+0 doi:10.1128/CVI.00410-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.
Copyright © 2008 by the American Society for Microbiology. All rights reserved.