2021 |
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Journal Articles |
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![]() | Paul Sondo, Biebo Bihoun, Bérenger Kabore, Marc Christian Tahita, Karim Derra, Toussaint Rouamba, Seydou Nakanabo Diallo, Adama Kazienga, Hamidou Ilboudo, Innocent Valea, Zekiba Tarnagda, Hermann Sorgho, Thierry Lefevre, Halidou Tinto Polymorphisms in Plasmodium falciparum parasites and mutations in the resistance genes Pfcrt and Pfmdr1 in Nanoro area, Burkina Faso. Journal Article In: Pan Afr. Med. J., vol. 39, pp. 118, 2021, ISSN: 1937-8688, (Copyright: Paul Sondo et al. PMID: 34512854 PMCID: PMC8396377). Abstract | BibTeX | Tags: Antimalarials/pharmacology, Burkina Faso, Drug Resistance, Falciparum/drug therapy/parasitology, GeneticRestriction Fragment Length, Genotype, Humans, Malaria, Membrane Transport Proteins/genetics, msp1, msp2, Multidrug Resistance-Associated Proteins/genetics, Mutation, Pfcrt, Pfmdr1, Plasmodium falciparum, Plasmodium falciparum/drug effects/genetics/isolation & purification, Polymerase Chain Reaction, Polymorphism, Protozoan Proteins/genetics | Links: @article{Sondo2021-qe, Introduction: from a genetic point of view P. falciparumis extremely polymorphic. There is a variety of parasite strains infesting individuals living in malaria endemic areas. The purpose of this study is to investigate the relationship between polymorphisms in Plasmodium falciparum parasites and Pfcrt and Pfmdr1 gene mutations in Nanoro area, Burkina Faso. Methods: blood samples from plasmodium carriers residing in the Nanoro Health District were genotyped using nested PCR. Parasite gene mutations associated with resistance to antimalarial drugs were detected by PCR-RFLP. Results: samples of 672 patients were successfully genotyped. No msp1and msp2allelic families exhibited an increase in developing mutations in resistance genes. However, mutant strains of these genes were present at greater levels in monoclonal infections than in multi-clonal infections. Conclusion: this study provides an overview of the relationship between polymorphisms in Plasmodium falciparum parasites and mutations in resistance genes. These data will undoubtedly contribute to improving knowledge of the parasite´s biology and its mechanisms of resistance to antimalarial drugs. | ||
2020 |
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Journal Articles |
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![]() | Julius Mulindwa, Harry Noyes, Hamidou Ilboudo, Luca Pagani, Oscar Nyangiri, Magambo Phillip Kimuda, Bernardin Ahouty, Olivier Fataki Asina, Elvis Ofon, Kelita Kamoto, Justin Windingoudi Kabore, Mathurin Koffi, Dieudonne Mumba Ngoyi, Gustave Simo, John Chisi, Issa Sidibe, John Enyaru, Martin Simuunza, Pius Alibu, Vincent Jamonneau, Mamadou Camara, Andy Tait, Neil Hall, Bruno Bucheton, Annette MacLeod, Christiane Hertz-Fowler, Enock Matovu High Levels of Genetic Diversity within Nilo-Saharan Populations: Implications for Human Adaptation. Journal Article In: American journal of human genetics, vol. 107, iss. 3, pp. 473-486, 2020, ISSN: 1537-6605 0002-9297. Abstract | BibTeX | Tags: *Nilo-Saharan, *population genetic variation, *signatures of selection, Adaptation, Antiporters/genetics, Blacks/genetics, Data Management, Ethiopia/epidemiology, Female, Genetic Variation/*genetics, Genetic/*genetics, Genetics, Genome, Haplotypes/genetics, Human/genetics, Humans, Male, Membrane Glycoproteins/genetics, Oxidoreductases/genetics, Physiological/*genetics, Polymorphism, Population, Selection, Single Nucleotide/genetics, Skin Pigmentation/*genetics, Sorting Nexins/genetics, Tumor Suppressor Proteins/genetics, Uganda/epidemiology | Links: @article{nokey, Africa contains more human genetic variation than any other continent, but the majority of the population-scale analyses of the African peoples have focused on just two of the four major linguistic groups, the Niger-Congo and Afro-Asiatic, leaving the Nilo-Saharan and Khoisan populations under-represented. In order to assess genetic variation and signatures of selection within a Nilo-Saharan population and between the Nilo-Saharan and Niger-Congo and Afro-Asiatic, we sequenced 50 genomes from the Nilo-Saharan Lugbara population of North-West Uganda and 250 genomes from 6 previously unsequenced Niger-Congo populations. We compared these data to data from a further 16 Eurasian and African populations including the Gumuz, another putative Nilo-Saharan population from Ethiopia. Of the 21 million variants identified in the Nilo-Saharan population, 3.57 million (17%) were not represented in dbSNP and included predicted non-synonymous mutations with possible phenotypic effects. We found greater genetic differentiation between the Nilo-Saharan Lugbara and Gumuz populations than between any two Afro-Asiatic or Niger-Congo populations. F3 tests showed that Gumuz contributed a genetic component to most Niger-Congo B populations whereas Lugabara did not. We scanned the genomes of the Lugbara for evidence of selective sweeps. We found selective sweeps at four loci (SLC24A5, SNX13, TYRP1, and UVRAG) associated with skin pigmentation, three of which already have been reported to be under selection. These selective sweeps point toward adaptations to the intense UV radiation of the Sahel. |
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