SynthesisMalaria journal2021
Drug resistance markers within an evolving efficacy of anti-malarial drugs in Cameroon: a systematic review and meta-analysis (1998-2020).
Synthesis in Malaria journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.
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Who cites it
18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.
- Molecular surveillance of antimalarial drug resistance genes in Nigeria: a systematic review and roadmap to malaria elimination.BMC medical genomics · 2025Pooled it
- Prevalence of antimalaria drug resistance-conferring mutations associated with sulphadoxine-pyrimethamineine-resistant Plasmodium falciparum in East Africa: a systematic review and meta-analysis.Annals of clinical microbiology and antimicrobials · 2025Pooled it
- Mapping Antimalarial Drug Resistance in Mozambique: A Systematic Review ofInternational journal of molecular sciences · 2024Pooled it
- Rising of antimalarial drug resistance Pfmdr1 N86Y and Pfcrt K76T gene in Ethiopia: a systematic review and meta-analysis.Journal, genetic engineering & biotechnology · 2026Article
- Molecular detection and maternal transmission of Microsporidia MB in the field-caught Anopheles coluzzii in Cameroon.Scientific reports · 2026Article
- Targeted Sequencing Identifies SNPs Associated with Antimalarial Drug Resistance and the CSP Vaccine Antigen inInternational journal of molecular sciences · 2025Article
- Genetic polymorphism of msp2 in Plasmodium falciparum isolates among asymptomatic malaria infections from two ecological settings in Cameroon.Malaria journal · 2025Article
- Advances in Duchenne Muscular Dystrophy: Diagnostic Techniques and Dystrophin Domain Insights.International journal of molecular sciences · 2025Review
- Prevalence and genetic diversity of polymorphisms inMalariaWorld journal · 2025Article
- Article
- First Insight into Drug Resistance Genetic Markers, Glucose-6-Phosphate Dehydrogenase and Phylogenetic Patterns of Misdiagnosed Plasmodium vivax Malaria in Far North Region, Cameroon.Current microbiology · 2023Article
- Nationwide spatiotemporal drug resistance genetic profiling from over three decades in Indian Plasmodium falciparum and Plasmodium vivax isolates.Malaria journal · 2023Article
- Evolution of Plasmodium falciparum antimalarial drug resistance markers post-adoption of artemisinin-based combination therapies in Yaounde, Cameroon.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2023Article
- Effectiveness of Intermittent Preventive Treatment with Sulfadoxine-Pyrimethamine in Pregnancy: Low Coverage and High Prevalence ofPathogens (Basel, Switzerland) · 2023Article
- High vector diversity and malaria transmission dynamics in five sentinel sites in Cameroon.Malaria journal · 2023Article
- Allelic frequencies of mutants of theHeliyon · 2022Article
- The Rare, the Best: Spread of Antimalarial-Resistant Plasmodium falciparum Parasites byMicrobiology spectrum · 2021Article
- Article
Corrections and comments
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Authors and funding
26 authors at 7 institutions in 3 countries.
Funding
Abstract
backgroundMalaria remains highly endemic in Cameroon. The rapid emergence and spread of drug resistance was responsible for the change from monotherapies to artemisinin-based combinations. This systematic review and meta-analysis aimed to determine the prevalence and distribution of Plasmodium falciparum drug resistance markers within an evolving efficacy of anti-malarial drugs in Cameroon from January 1998 to August 2020.
methodsThe PRISMA-P and PRISMA statements were adopted in the inclusion of studies on single nucleotide polymorphisms (SNPs) of P. falciparum anti-malarial drug resistance genes (Pfcrt, Pfmdr1, Pfdhfr, Pfdhps, Pfatp6, Pfcytb and Pfk13). The heterogeneity of the included studies was evaluated using the Cochran's Q and I
resultsOut of the 902 records screened, 48 studies were included in this aggregated meta-analysis of molecular data. A total of 18,706 SNPs of the anti-malarial drug resistance genes were genotyped from 47,382 samples which yielded a pooled prevalence of 35.4% (95% CI 29.1-42.3%). Between 1998 and 2020, there was significant decline (P < 0.0001 for all) in key mutants including Pfcrt 76 T (79.9%-43.0%), Pfmdr1 86Y (82.7%-30.5%), Pfdhfr 51I (72.2%-66.9%), Pfdhfr 59R (76.5%-67.8%), Pfdhfr 108 N (80.8%-67.6%). The only exception was Pfdhps 437G which increased over time (30.4%-46.9%, P < 0.0001) and Pfdhps 540E that remained largely unchanged (0.0%-0.4%, P = 0.201). Exploring mutant haplotypes, the study observed a significant increase in the prevalence of Pfcrt CVIET mixed quintuple haplotype from 57.1% in 1998 to 57.9% in 2020 (P < 0.0001). In addition, within the same study period, there was no significant change in the triple Pfdhfr IRN mutant haplotype (66.2% to 67.3%, P = 0.427). The Pfk13 amino acid polymorphisms associated with artemisinin resistance were not detected.
conclusionsThis review reported an overall decline in the prevalence of P. falciparum gene mutations conferring resistance to 4-aminoquinolines and amino alcohols for a period over two decades. Resistance to artemisinins measured by the presence of SNPs in the Pfk13 gene does not seem to be a problem in Cameroon. Systematic review registration PROSPERO CRD42020162620.
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