HLA-DRB1*04:05 and HLA-DQB1*04:01: Alleles Potentially Associated with Vogt-Koyanagi-Harada in Northern Thai Patients

• Main Authors: Nampeung Anukul, Kessara Pathanapitoon, Nipapan Leetrakool, Tiphakorn Guntiya, Ratsameetip Wita, Poonsub Palacajornsuk, Phennapha Klangsinsirikul
• Format: Journal
• Published: 2020
• Subjects: Medicine
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091381465&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/70932
• Institution: Chiang Mai University

© 2020 Taylor & Francis Group, LLC. Purpose: To determine the frequency and association of alleles at human leukocyte antigen (HLA)-DRB1 and HLA-DQB1 loci in VKH disease patients from Northern Thailand. Methods: A case–control study was conducted with three subject groups: 23 VKH patients, 20 patients with other uveitis entities, and 40 healthy blood donors. HLA-DRB1 and HLA-DQB1 loci were analyzed and the frequency of HLA-DRB1 and HLA-DQB1 alleles was calculated by direct counting. The measure of association was calculated by odds ratio (OR) and 95% confidence interval. Results: In VKH patients, the most prevalent allele was HLA-DRB1*04:05, found in 35% of patients and with the highest OR (42.13). HLA-DQB1*04:01 was the next most prevalent, found in 23.91% of VKH patients. HLA-DQB1*05:02 was also detected in 23.91% of patients; however, a higher prevalence was observed in non-VKH and healthy controls (30% and 35%, respectively). Conclusion: HLA-DRB1*04:05: and HLA-DQB1*04:01 could be potential genetic markers for VKH.