ArticleIndian journal of gastroenterology : official journal of the Indian Society of Gastroenterology2022
Distribution of celiac disease predisposing genes HLA-DQ2 and HLA-DQ8 in the native population of southern India.
Article in Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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2 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- Meta-Analysis and Systematic Review of HLA DQ2/DQ8 in Adults with Celiac Disease.International journal of molecular sciences · 2023Pooled it
- Typing of HLA susceptibility alleles as complementary tool in diagnosis of controversial cases of pediatric celiac disease.Frontiers in nutrition · 2025Article
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8 authors at 2 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundCeliac disease (CD) is an intestinal inflammatory condition caused by the ingestion of gluten peptides in wheat and related grains in individuals carrying HLA-DQ2 and/or HLA-DQ8 genes. In comparison to HLA-DQ8, a higher HLA-DQ2 prevalence is reported in European population where wheat has been the staple food for thousands of years. In non-European population, this pattern of HLA-DQ CD-predisposing gene distribution has not always been found. The aim of this study was to evaluate the HLA-DQ2 and HLA-DQ8 distribution in the native low-gluten consuming southern Indian population.
methodsOverall, 211 dried blood spots (DBS) were collected from native southern Indian individuals. HLA-DQ characterization and the determination of homozygous/heterozygous status were performed using commercially available HLA-DQ typing kits.
resultsOf 211 collected DBS, 88 (42%, 95% CI: 36-48) were positive for HLA-DQ2 and/or HLA-DQ8 heterodimers. Overall, 40 (19%, 95% CI: 14-24) samples typed positive for HLA-DQ2 and 48 (23%, 95% CI: 18-28) typed positive for HLA-DQ8 genotypes. Of 40 HLA-DQ2-positive individuals, only one subject tested homozygous for the DQB1*02 allele.
conclusionsIn the southern Indian native general population, the prevalence of HLA-DQ8 is higher in comparison to HLA-DQ2 prevalence. This finding could be related to the delayed introduction of wheat in the diet of the southern Indian population.
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