AI Article Synopsis
- The study examined the prevalence and diversity of Plasmodium falciparum genotypes in symptomatic children in Togo's maritime region, involving 309 individuals from malaria-endemic areas.
- Results showed a high number of positive genotypes for merozoite surface proteins (msp) 1, 2, and 3, with multiple alleles found for each; however, there was no correlation between specific genotypes and the severity of malaria.
- The findings suggest that malaria severity isn't linked to higher levels of genotypic diversity and recommend further research into other factors like immunity and nutrition to better understand the disease's impact.
Article Abstract
Objective: To assess the genotype prevalence and the multiplicity of Plasmodium falciparum infections in the maritime region of Togo.
Methods: We enrolled 309 symptomatic individuals aged from 6 months to 15 years from Bè/Lomé and Tsévié, two malaria endemic zones. The number and the proportions of merozoite surface proteins 1, 2 and 3 genotypes in patients were determined using capillary electrophoresis genotyping. We further investigated the possible association between transaminases and homocysteine, and the severity of the disease.
Results: Of the 309 samples genotyped, 210 tested positive to msp-1, 227 to msp-2 and 193 to msp-3. The nested PCR revealed 22 different alleles for the allelic family msp-1, 33 for msp-2 and 13 for msp-3. At each locus, the family distribution was 54.58% of K1, 25% of MAD20 and 20.42% of RO33 for msp-1, and 51.71% and 48.29% of FC27 and 3D7, respectively, for msp-2. For all these allelic variants, the distribution was associated with neither the severity of malaria nor the zone of habitation. Pearson correlation coefficients between either the levels of homocysteine or the transaminase and the severity of the disease were very low.
Conclusion: The severity of malaria was not associated with higher multiplicity of infections and did not appear restricted to particular genotypes. More comprehensive explorations including immunity, genetic factors, nutritional and sociologic status of the population could clarify the situation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1365-3156.2011.02913.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Multiplication rate variation of malaria parasites from hospital cases and community infections.
Sci Rep
January 2025
Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT, UK.
The significance of multiplication rate variation in malaria parasites needs to be determined, particularly for Plasmodium falciparum, the species that causes most virulent infections. To investigate this, parasites from cases presenting to hospital in The Gambia and from local community infections were culture-established and then tested under exponential growth conditions in a standardised six-day multiplication rate assay. The multiplication rate distribution was lower than seen previously in clinical isolates from another area in West Africa where infection is more highly endemic.
View Article and Find Full Text PDFTemporal changes in Plasmodium falciparum genetic diversity and multiplicity of infection across three areas of varying malaria transmission intensities in Uganda.
Trop Med Health
December 2024
Clinical Epidemiology Unit, School of Medicine, Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda.
Background: Malaria is a significant public health challenge in Uganda, with Plasmodium falciparum (P. falciparum) responsible for most of malaria infections. The high genetic diversity and multiplicity of infection (MOI) associated with P.
View Article and Find Full Text PDFGenetic profiling of Plasmodium falciparum antigenic biomarkers among asymptomatic pregnant women on intermittent preventive treatment with sulfadoxine-pyrimethamine from southwest Nigeria.
Placenta
December 2024
Department of Pharmacology, Babcock University, Ilishan-Remo, Ogun, Nigeria; Centre for Advanced Medical Research and Biotechnology, Babcock University, Ilishan-Remo, Ogun, Nigeria.
Introduction: The genetic complexity of Plasmodium falciparum is contributory to the emergence of drug resistant-parasites. Intermittent preventive treatment of malaria in pregnancy with sulfadoxine-pyrimethamine (IPTp-SP) in malaria endemic settings is recommended by WHO. This study evaluated the prevalence of Plasmodium falciparum multidrug resistance-1 gene (Pfmdr-1), genetic diversity of merozoite surface proteins (msp-1, msp-2) and glutamate-rich protein (glurp) among pregnant women with sub-patent parasitaemia from southwest Nigeria.
View Article and Find Full Text PDFPlasmodium falciparum with pfhrp2 and pfhrp3 gene deletions in asymptomatic malaria infections in the Lake Victoria region, Kenya.
Trop Med Health
December 2024
Department of Parasitology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan.
Malaria rapid diagnostic tests (RDTs) targeting the Plasmodium falciparum histidine-rich protein 2 (PfHRP2) are widely used to diagnose P. falciparum infection. However, reports of P.
View Article and Find Full Text PDFGenotyping and Characterizing to Reveal Genetic Diversity and Multiplicity of Infection by Merozoite Surface Proteins 1 and 2 ( and ) and Glutamate-Rich Protein () Genes.
Trop Med Infect Dis
November 2024
School of Medicine, Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth PO1 2DT, UK.
Resistance to current antimalarial drugs is steadily increasing, and new drugs are required. Drug efficacy trials remain the gold standard to assess the effectiveness of a given drug. The World Health Organization (WHO)'s recommendation for the optimal duration of follow-up for assessing antimalarial efficacy is a minimum of 28 days.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!