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

Research

Zaw Min Tun¹  Tin Maung Hlaing¹  Jaranit Kaewkungwal²  Liwang Cui³  Wanlapa Roobsoong⁴  Chayanut Suansomjit⁴  Jetsumon Sattabongkot⁴  Than Htike Aung⁵ 

[1] Defence Services Medical Research Centre, Nay Pyi Taw, Myanmar;Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand;Division of Infectious Diseases and International Medicine, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Florida, USA;Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand;Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand;Defence Services Medical Academy, Yangon, Myanmar;

关键词: G6PD deficiency;    G6PD variant;    Diagnosis;    Prevalence;    Malaria;    Myanmar;   

DOI  :  10.1186/s12936-023-04559-6

 received in 2022-11-27, accepted in 2023-04-11,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundOver 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.MethodsIn 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.ResultsG6PD 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.ConclusionThis 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.

【 授权许可】

CC BY   
© The Author(s) 2023

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