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Roman DNR, Anne NNR, Singh V, Luther KMM, Chantal NEM, Albert MS. Role of genetic factors and ethnicity on the multiplicity of Plasmodium falciparum infection in children with asymptomatic malaria in Yaoundé, Cameroon. Heliyon 2018; 4:e00760. [PMID: 30186982 PMCID: PMC6120745 DOI: 10.1016/j.heliyon.2018.e00760] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 07/10/2018] [Accepted: 08/23/2018] [Indexed: 12/22/2022] Open
Abstract
In this cross-sectional study, we investigated host genetic factors and ethnic variation in circulating Plasmodium falciparum merozoite surface protein 2 (msp-2) clones among children with asymptomatic malaria. Isolates from seventy two asymptomatic malaria children were used for genotyping block 3 of msp-2 gene by nested polymerase chain reaction (PCR). Sickle cell trait and glucose-6-phosphate dehydrogenase (G6PD) deficiency were analysed by restriction fragment length polymorphism of DNA products from PCR targeting codons 6 and 68 of the beta-globin (HBB) and G6PD genes respectively. ABO blood group was typed by agglutination method. A total of forty two msp-2 genotypes (20 for 3D7 and 22 for FC27) were detected for an average (standard error of mean) multiplicity of infection (MOI) of 2.45 (0.16). The MOI was statistically the same among the five identified ethnic groups (P = 0.83). The overall prevalence of sickle cell trait and G6PD deficiency were 12.50 % and 22.22 % respectively. MOI was similar between children with Hb AA and Hb AS genotypes (P = 0.42). MOI was significantly high among children with a mutant G6PD genotype (P = 0.017). MOI was significantly higher in blood group O than group A (P = 0.03). Our findings show that although ethnicity and sickle cell trait have no association with MOI, the association was observed with G6PD genotype and ABO group. The results suggest the need for extension and expansion of the current study in order to investigate the mechanisms involved.
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Affiliation(s)
- Dongang Nana Rodrigue Roman
- Department of Biochemistry, Faculty of Sciences, University of Douala, P.O Box 24157, Douala, Cameroon
- Institute of Medical Research and Medicinal Plants Studies (IMPM), P.O Box 13033, Yaoundé, Cameroon
- Cell Biology Laboratory and Malaria Parasite Bank, ICMR-National Institute of Malaria Research, Sector-8, Dwarka, New Delhi 110077, India
| | - Ngono Ngane Rosalie Anne
- Department of Biochemistry, Faculty of Sciences, University of Douala, P.O Box 24157, Douala, Cameroon
| | - Vineeta Singh
- Cell Biology Laboratory and Malaria Parasite Bank, ICMR-National Institute of Malaria Research, Sector-8, Dwarka, New Delhi 110077, India
- Corresponding author.
| | | | - Ngonde Essome Marie Chantal
- Institute of Medical Research and Medicinal Plants Studies (IMPM), P.O Box 13033, Yaoundé, Cameroon
- University Hospital Centre, P.O Box 1364, Yaoundé, Cameroon
| | - Mouelle Sone Albert
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, P.O Box 24157, Douala, Cameroon
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