ArticleBMC gastroenterology2026
HLA-DQB1*02, HLA-DRB1*03 alleles and HLA-DQB1*02-HLA-DRB1*03 haplotype confer a significant risk of celiac disease in the Mauritanian population.
Article in BMC gastroenterology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND AND
aimCeliac disease (CD) is an autoimmune disorder primarily caused by an abnormal immune response to dietary gluten in human leucocytes class II antigens carriers. This preliminary study aimed to assess the specific risk conferred by DQB1 and DRB1 alleles to celiac disease development in the Mauritanian population. MATERIALS AND
methodsFrequencies of HLA-DQB1and HLA-DRB1alleles and haplotypes were evaluated in 50 celiac disease (CD) patients. The association of HLA-DQB1 and HLA-DRB1with the disease was tested using a control group of 50 non-CD healthy individuals. Genotyping was performed by PCR-SSP and next-generation sequencing (NGS).
resultsGenotyping of the studied population revealed that the most frequent alleles of DQB1/DRB1gens among CD patients were DQB1*02(70%) and DQB1*03(9%), DRB1*03 (52%) was the largest group followed by DRB1*07 (12%). The major allelic combination was DRB1*03-DQB1*02, with a frequency of 47%. Analysis of allele frequency in patients and controls revealed a significant association between CD and the two key HLA alleles here respectively DQB1*02(χ
conclusionThese preliminary results, consistent with previous literature on CD genetic susceptibility, support the predominant role of DQB1*02 and DRB1*03 alleles and haplotypes in celiac onset in our population. The availability of NGS typing for celiac disease maybe an additive tool to exclude symptoms ambiguity during CD diagnosis in our medical facilities.
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