Inflammatory bowel diseases in Tamil Nadu: A survey of demographics, clinical profile, and practices.

Background: Inflammatory bowel disease (IBD) is increasingly diagnosed in South Asia. This survey by the Tamil Nadu Chapter of the Indian Society of Gastroenterology (TNISG) documents the demography, clinical profile, and therapeutic practices related to IBD in Tamil Nadu.

Methods: TNISG members from 32 institutions completed an online cross-sectional questionnaire on IBD patients from March 2020 to January 2021.

Human Leukocyte Antigen DQ (HLA-DQ) genotypes and haplotypes and their association with phenotype in patients with celiac disease in India.

Background And Aim: Human Leukocyte Antigen DQ (HLA-DQ) genotypes play a permissive role in the genesis of celiac disease (CeD). In this case-control study, we used next-generation sequencing to determine HLA-DQA1 and ~DQB1 genotypes and haplotypes associated with CeD in Indian patients.

Methods: HLA-DQA1 and ~DQB1 loci were amplified, using long-range polymerase chain reaction (PCR), from DNA of 259 patients with symptomatic CeD (160 typical and 99 atypical), 45 asymptomatic CeD, 96 potential CeD, and 300 healthy adults.