Prevalence of G6PD deficiency and diagnostic accuracy of a G6PD point-of-care test among a population at risk of malaria in Myanmar
Issued Date
2023-05-01
Resource Type
eISSN
14752875
Scopus ID
2-s2.0-85158033500
Pubmed ID
37127600
Journal Title
Malaria journal
Volume
22
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Malaria journal Vol.22 No.1 (2023) , 143
Suggested Citation
Aung T.H., Suansomjit C., Tun Z.M., Hlaing T.M., Kaewkungwal J., Cui L., Sattabongkot J., Roobsoong W. Prevalence of G6PD deficiency and diagnostic accuracy of a G6PD point-of-care test among a population at risk of malaria in Myanmar. Malaria journal Vol.22 No.1 (2023) , 143. doi:10.1186/s12936-023-04559-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/81919
Title
Prevalence of G6PD deficiency and diagnostic accuracy of a G6PD point-of-care test among a population at risk of malaria in Myanmar
Other Contributor(s)
Abstract
BACKGROUND: Over the past decade, the incidence of malaria has steadily declined in Myanmar, with Plasmodium vivax becoming predominant. The resilience of P. vivax to malaria control is attributed to the parasite's ability to form hypnozoites in the host's liver, which can cause relapse. Primaquine is used to eliminate hypnozoites but can cause haemolysis in glucose-6-phosphate dehydrogenase (G6PD)-deficient individuals. It is thus necessary to estimate the frequency and variant types of G6PD deficiency in areas where primaquine will be widely used for P. vivax elimination. METHODS: In this study, a descriptive cross-sectional survey was conducted to determine the prevalence of G6PD deficiency in a population residing in Nay Pyi Taw, Myanmar, using a standard spectrophotometric assay, a rapid diagnostic test (RDT), Biosensor, and by genotyping G6PD variants. RESULTS: G6PD enzyme activity was determined from 772 leukocyte-depleted samples, with an adjusted male median G6PD activity value of 6.3 U/g haemoglobin. Using a cut-off value of 30% enzyme activity, the overall prevalence of G6PD deficiency was 10.8%. Genotyping of G6PD variants was performed for 536 samples, of which 131 contained mutations. The Mahidol variant comprised the majority, and males with the Mahidol variant showed lower G6PD enzyme activity. The G6PD Andalus variant, which has not been reported in Myanmar before, was also identified in this study. CONCLUSION: This study provides a G6PD enzyme activity reference value for the Myanmar population and further information on the prevalence and variants of G6PD deficiency among the Myanmar population; it also evaluates the feasibility of G6PD deficiency tests.