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Zailani MAH, Raja Sabudin RZA, Ithnin A, Alauddin H, Sulaiman SA, Ismail E, Othman A. Population screening for glucose-6-phosphate dehydrogenase deficiency using quantitative point-of-care tests: a systematic review. Front Genet 2023; 14:1098828. [PMID: 37388931 PMCID: PMC10301741 DOI: 10.3389/fgene.2023.1098828] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 05/22/2023] [Indexed: 07/01/2023] Open
Abstract
Background: Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an X-linked hereditary disorder and a global public health concern that is most prevalent in malaria-endemic regions including Asia, Africa, and the Mediterranean. G6PD-deficient individuals are at high risk of developing acute hemolytic anemia following treatment with antimalarial drugs including Primaquine and Tafenoquine. However, the currently available tests for G6PD screening are complex and often have been misclassifying cases, particularly for females with intermediate G6PD activity. The latest innovation of quantitative point-of-care (POC) tests for G6PD deficiency provides an opportunity to improve population screening and prevent hemolytic disorders when treating malaria. Aim(s): To assess the evidence on the type and performance of quantitative point-of-care (POC) tests for effective G6PD screening and hence, radical elimination of Plasmodium malaria infections. Methods: Relevant studies published in English language confined from two databases, Scopus and ScienceDirect were searched from November 2016 onwards. The search was conducted using keywords including "glucosephosphate dehydrogenase" or "G6PD", "point-of-care", "screening" or "prevalence", "biosensor" and "quantitative". The review was reported following the PRISMA guidelines. Results: Initial search results yielded 120 publications. After thorough screening and examination, a total of 7 studies met the inclusion criteria, and data were extracted in this review. Two types of quantitative POC tests were evaluated, namely, the CareStartTM Biosensor kit and the STANDARD G6PD kit. Both tests showed promising performance with high sensitivity and specificity ranging mostly from 72% to 100% and 92%-100%, respectively. The positive and negative predictive values (PPV and NPV) ranged from 35% to 72% and 89%-100%, with accuracy ranging from 86% to 98%. Conclusion: In areas with a high prevalence of G6PD deficiency that overlap with malaria endemicity, availability and validation of the diagnostic performance of quantitative POC tests are of absolute importance. Carestart™ biosensor and STANDARD G6PD kits showed high reliability and performed well in comparison to the spectrophotometric reference standard.
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Affiliation(s)
| | | | - Azlin Ithnin
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Hafiza Alauddin
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Siti Aishah Sulaiman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Endom Ismail
- Department of Biological Sciences Dan Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Ainoon Othman
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Nilai, Malaysia
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Aung TH, Suansomjit C, Tun ZM, Hlaing TM, 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. Malar J 2023; 22:143. [PMID: 37127600 PMCID: PMC10150473 DOI: 10.1186/s12936-023-04559-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 04/11/2023] [Indexed: 05/03/2023] Open
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.
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Affiliation(s)
- Than Htike Aung
- Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Defence Services Medical Academy, Yangon, Myanmar
| | - Chayanut Suansomjit
- Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Zaw Min Tun
- Defence Services Medical Research Centre, Nay Pyi Taw, Myanmar
| | | | - Jaranit Kaewkungwal
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Liwang Cui
- Division of Infectious Diseases and International Medicine, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Florida, USA
| | - Jetsumon Sattabongkot
- Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Wanlapa Roobsoong
- Mahidol Vivax Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
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Djigo OKM, Gomez N, Ould Ahmedou Salem MS, Basco L, Ould Mohamed Salem Boukhary A, Briolant S. Performance of a Commercial Multiplex Allele-Specific Polymerase Chain Reaction Kit to Genotype African-Type Glucose-6-Phosphate Dehydrogenase Deficiency. Am J Trop Med Hyg 2023; 108:449-455. [PMID: 36535256 PMCID: PMC9896312 DOI: 10.4269/ajtmh.21-1081] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 02/03/2022] [Indexed: 12/23/2022] Open
Abstract
8-Aminoquinoline antimalarial drugs (primaquine, tafenoquine) are required for complete cure of Plasmodium vivax malaria, but they are contraindicated in patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency. In the absence of spectrophotometry, which is a gold standard for measuring G6PD activity, G6PD genotyping is one of the alternatives to establish a database and distribution map of G6PD enzyme deficiency in Mauritania, which has become a new epicenter of P. vivax malaria in West Africa. The aim of our study was to assess the performance of multiplex allele-specific polymerase chain reaction (PCR) (African-type Diaplex C™ G6PD kit) against PCR-restriction fragment length polymorphism and sequencing. Of 146 mutations associated with G6PD A- genotypes in 177 blood samples from Mauritanian patients, all but two samples were identified correctly using multiplex allele-specific PCR (100% sensitivity and 99% specificity; "almost perfect agreement" between allele-specific PCR and PCR-restriction fragment length polymorphism/sequencing, with a kappa coefficient of 0.977). Despite a suboptimal PCR protocol for dried blood spots and the inability of the commercial assay to predict unequivocally the G6PD enzyme level in heterozygous females, the African-type Diaplex C™ G6PD genotyping kit seemed to be a valuable screening tool for male subjects and for research purposes in resource-limited countries where spectrophotometer and DNA sequencing are not available.
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Affiliation(s)
- Oum Kelthoum Mamadou Djigo
- Unité de Recherche “Génomes et Milieux” (Jeune Equipe Associée à l’Institut de Recherche pour le Développement), Faculté des Sciences et Techniques, Université de Nouakchott, Nouakchott, Mauritania
| | - Nicolas Gomez
- Aix Marseille Université, Institut de Recherche pour le Développement, Assistance Publique-Hôpitaux de Marseille, Service de Santé des Armées, Vecteurs–Infections Tropicales et Méditerranéennes, Marseille, France
- Institut Hospitalo-Universitaire–Méditerranée Infection, Marseille, France
- Unité de Parasitologie Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France
| | - Mohamed Salem Ould Ahmedou Salem
- Unité de Recherche “Génomes et Milieux” (Jeune Equipe Associée à l’Institut de Recherche pour le Développement), Faculté des Sciences et Techniques, Université de Nouakchott, Nouakchott, Mauritania
| | - Leonardo Basco
- Aix Marseille Université, Institut de Recherche pour le Développement, Assistance Publique-Hôpitaux de Marseille, Service de Santé des Armées, Vecteurs–Infections Tropicales et Méditerranéennes, Marseille, France
- Institut Hospitalo-Universitaire–Méditerranée Infection, Marseille, France
| | - Ali Ould Mohamed Salem Boukhary
- Unité de Recherche “Génomes et Milieux” (Jeune Equipe Associée à l’Institut de Recherche pour le Développement), Faculté des Sciences et Techniques, Université de Nouakchott, Nouakchott, Mauritania
| | - Sébastien Briolant
- Aix Marseille Université, Institut de Recherche pour le Développement, Assistance Publique-Hôpitaux de Marseille, Service de Santé des Armées, Vecteurs–Infections Tropicales et Méditerranéennes, Marseille, France
- Institut Hospitalo-Universitaire–Méditerranée Infection, Marseille, France
- Unité de Parasitologie Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France
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Drysdale M, Tan L, Martin A, Fuhrer IB, Duparc S, Sharma H. Plasmodium vivax in Children: Hidden Burden and Conspicuous Challenges, a Narrative Review. Infect Dis Ther 2023; 12:33-51. [PMID: 36378465 PMCID: PMC9868225 DOI: 10.1007/s40121-022-00713-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
There has been progress towards decreasing malaria prevalence globally; however, Plasmodium vivax has been less responsive to elimination efforts compared with Plasmodium falciparum. P. vivax malaria remains a serious public health concern in regions where it is the dominant species (South and South-East Asia, the Eastern Mediterranean region, and South America) and is increasingly recognized for its contribution to overall morbidity and mortality worldwide. The incidence of P. vivax decreases with increasing age owing to rapidly acquired clinical immunity and there is a disproportionate burden of P. vivax in infants and children, who remain highly vulnerable to severe disease, recurrence, and anemia with associated developmental impacts. Diagnosis is sometimes difficult owing to the sensitivity of diagnostic tests to detect low levels of parasitemia. Additionally, the propensity of P. vivax to relapse following reactivation of dormant hypnozoites in the liver contributes to disease recurrence in infants and children, and potentiates morbidity and transmission. The 8-aminoquinolines, primaquine and tafenoquine, provide radical cure (relapse prevention). However, the risk of hemolysis in patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency necessitates testing prior to administration of 8-aminoquinolines, which has limited their uptake. Additional challenges include lack of availability of pediatric dose formulations and problems with adherence to primaquine owing to the length of treatment recommended. A paucity of data and studies specific to pediatric P. vivax malaria impacts the ability to deliver targeted interventions. It is imperative that P. vivax in infants and children be the focus of future research, control initiatives, and anti-malarial drug development.
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Affiliation(s)
| | - Lionel Tan
- GSK, 980 Great West Road, Brentford, TW8 9GS Middlesex UK
| | - Ana Martin
- GSK, 980 Great West Road, Brentford, TW8 9GS Middlesex UK
| | | | | | - Hema Sharma
- GSK, 980 Great West Road, Brentford, TW8 9GS Middlesex UK
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Shenkutie TT, Nega D, Hailu A, Kepple D, Witherspoon L, Lo E, Negash MT, Adamu A, Gebremichael SG, Gidey B, Tasew G, Feleke SM, Kebede T. Prevalence of G6PD deficiency and distribution of its genetic variants among malaria-suspected patients visiting Metehara health centre, Eastern Ethiopia. Malar J 2022; 21:260. [PMID: 36076204 PMCID: PMC9461287 DOI: 10.1186/s12936-022-04269-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 08/17/2022] [Indexed: 12/04/2022] Open
Abstract
Background Glucose-6-phosphate dehydrogenase (G6PD) is cytosolic enzyme, which has a vital role for the integrity and functioning of red blood cells. Lower activity of this enzyme leads to the occurrence of acute haemolytic anaemia after exposure to oxidative stressors like primaquine. Primaquine is an important drug for the radical cure of Plasmodium vivax and blocking transmission of Plasmodium falciparum, and thereby enhancing malaria elimination. However, there is a need to identify G6PD deficient individuals and administer the drug with caution due to its haemolytic side effects. The main objective of this study is to determine the prevalence of G6PD deficiency among malaria-suspected individuals. Methods A facility-based cross-sectional study was conducted from September 2020 to September 2021 in Metehara Health Centre, Eastern Ethiopia. A structured questionnaire was used to collect the socio-demographic and clinical information of the study participants. Capillary and venous blood samples were collected based on standard procedures for onsite screening, dried blood spot preparation, and malaria microscopy. The G6PD enzyme activity was measured by careSTART™ G6PD biosensor analyzer. Data was entered and analysed by SPSS. Results A total of 498 study participants were included in the study, of which 62% (309) were males. The overall prevalence of G6PD deficiency based on the biosensor screening was 3.6% (18/498), of which 2.9% and 4.8% were males and females, respectively. Eleven of the G6PD deficient samples had mutations confirmed by G6PD gene sequencing analysis. Mutations were detected in G267 + 119C/T, A376T, and ChrX:154535443. A significant association was found in sex and history of previous malaria infection with G6PD deficiency. Conclusions The study showed that the G6PD deficient phenotype exists in Metehara even if the prevalence is not very high. G267 + 119C/T mutation is the predominant G6PD variant in this area. Therefore, malaria patient treatment using primaquine should be monitored closely for any adverse effects. Supplementary Information The online version contains supplementary material available at 10.1186/s12936-022-04269-5.
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Affiliation(s)
- Tassew Tefera Shenkutie
- Department of Medical Laboratory Sciences, Debre Berhan University, Debre Berhan, Ethiopia. .,Department of Microbiology, Immunology and Parasitology, Addis Ababa University, Addis Ababa, Ethiopia. .,Bacterial, Parasitic, and Zoonotic Diseases Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia.
| | - Desalegn Nega
- Bacterial, Parasitic, and Zoonotic Diseases Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Asrat Hailu
- Department of Microbiology, Immunology and Parasitology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Daniel Kepple
- Department of Biological Sciences, University of North Carolina, Charlotte, NC, USA
| | - Logan Witherspoon
- Department of Biological Sciences, University of North Carolina, Charlotte, NC, USA
| | - Eugenia Lo
- Department of Biological Sciences, University of North Carolina, Charlotte, NC, USA.,School of Data Science, University of North Carolina at Charlotte, Charlotte, NC, USA
| | - Meshesha Tsigie Negash
- Bacterial, Parasitic, and Zoonotic Diseases Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Aderaw Adamu
- Department of Medical Laboratory Sciences, Wollo University, Dessie, Ethiopia
| | | | - Bokretsion Gidey
- Bacterial, Parasitic, and Zoonotic Diseases Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Geremew Tasew
- Bacterial, Parasitic, and Zoonotic Diseases Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Sindew M Feleke
- Bacterial, Parasitic, and Zoonotic Diseases Research Directorate, Ethiopian Public Health Institute, Addis Ababa, Ethiopia
| | - Tadesse Kebede
- Department of Microbiology, Immunology and Parasitology, Addis Ababa University, Addis Ababa, Ethiopia
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Bahk YY, Ahn SK, Jeon HJ, Na BK, Lee SK, Shin HJ. An Evaluation of a New Quantitative Point-of Care Diagnostic to Measure Glucose-6-phosphate Dehydrogenase Activity. THE KOREAN JOURNAL OF PARASITOLOGY 2022; 60:281-288. [PMID: 36041490 PMCID: PMC9441449 DOI: 10.3347/kjp.2022.60.4.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022]
Abstract
Malaria continues to be one of the most crucial infectious burdens in endemic areas worldwide, as well as for travelers visiting malaria transmission regions. It has been reported that 8-aminoquinolines are effective against the Plasmodium species, particularly primaquine, for anti-hypnozoite therapy in P. vivax malaria. However, primaquine causes acute hemolytic anemia in individuals with glucose-6-phosphate dehydrogenase (G6PD) deficiency. Therefore, G6PD deficiency testing should precede hypnozoite elimination with 8-aminoquinoline. Several point-of-care devices have been developed to detect G6PD deficiency. The aim of the present study was to evaluate the performance of a novel, quantitative G6PD diagnostics based on a metagenomic blue fluorescent protein (mBFP). We comparatively evaluated the sensitivity and specificity of the G6PD diagnostic modality with standard methods using 120 human whole blood samples. The G6PD deficiency was spectrophotometrically confirmed. The performance of the G6PD quantitative test kit was compared with that of a licensed control medical device, the G6PD strip. The G6PD quantitative test kit had a sensitivity of 95% (95% confidence interval (CI): 89.3–100%) and a specificity of 100% (95% CI: 94.3–100%). This study shows that the novel diagnostic G6PD quantitative test kit could be a cost-effective and time-efficient, and universally mandated screening tool for G6PD deficiency.
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Affiliation(s)
- Young Yil Bahk
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju 27478, Korea
| | - Seong Kyu Ahn
- Infectious Diseases Investigation Division, Jeonnam Institute of Public Health and Environment, Muan 58568, Korea
| | - Heung Jin Jeon
- Infection Control Convergence Research Center, Chungnam National University College of Medicine, Deajeon 35015, Korea
| | - Byoung-Kuk Na
- Department of Parasitology and Tropical Medicine, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju 52727, Korea
| | - Sung-Keun Lee
- Department of Pharmacology, Inha University School of Medicine, Incheon 22212, Korea
- Corresponding authors (; )
| | - Ho-Joon Shin
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Korea
- Corresponding authors (; )
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