Investigating common mutations in ATP7B gene and the prevalence of Wilson’s disease in the Thai population using population-based genome-wide datasets
Issued Date
2024-01-01
Resource Type
ISSN
14345161
eISSN
1435232X
Scopus ID
2-s2.0-85202608669
Journal Title
Journal of Human Genetics
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Human Genetics (2024)
Suggested Citation
Own-eium P., Dejsuphong D., Vathesatogkit P., Sritara P., Sura T., Aekplakorn W., Suktitipat B., Eu-ahsunthornwattana J. Investigating common mutations in ATP7B gene and the prevalence of Wilson’s disease in the Thai population using population-based genome-wide datasets. Journal of Human Genetics (2024). doi:10.1038/s10038-024-01292-z Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/100976
Title
Investigating common mutations in ATP7B gene and the prevalence of Wilson’s disease in the Thai population using population-based genome-wide datasets
Corresponding Author(s)
Other Contributor(s)
Abstract
Wilson’s disease (WD) is a rare metabolic disorder caused by variations in the ATP7B gene. It usually manifests hepatic, neurologic, and psychiatric symptoms due to excessive copper accumulation. The prevalence of WD and its common variants differ across populations. This study aimed to examine these aspects of WD within the Thai population, where information has been limited. We reviewed ClinVar and the Wilson Disease Mutation Database, organizing variants classified as pathogenic or likely pathogenic in one or both databases as “relaxed” and “strict” lists. Allele frequencies were estimated from genotyping array data (Asian Screening Array: ASA; Illumina Corp, CA) of 6291 Thai subjects, which also underwent genotype imputation. The prevalence of WD in the Thai population was estimated assuming Hardy-Weinberg Equilibrium. The strict list yielded a prevalence of 1/24,128 (carrier frequency=1/78), while the relaxed list yielded a prevalence of 1/9971 (carrier frequency=1/50). The most common WD variants in Thai subjects were c.2333 G > T, c.3443 T > C, and c.813 C > A from the strict list, and c.3316 G > A and c.2605 G > A from the relaxed list. The ASA chip covered approximately 59 and 24% of WD variants from the strict and relaxed lists, respectively. Based on the estimated prevalence, a carrier screening program for WD is not currently required in Thailand. However, as genotyping services become more affordable and accessible, such a program would facilitate early identification, treatment, and prevention of WD.