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Ortega DC, Cárdenas H, Barreto G. Joint selection for two malaria resistance mutations in a south-west Colombian population. Infect Genet Evol 2020; 80:104188. [PMID: 31927074 DOI: 10.1016/j.meegid.2020.104188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/05/2020] [Accepted: 01/08/2020] [Indexed: 11/19/2022]
Abstract
In regions with an Afro-descendant population and where malaria is endemic, high frequencies of polymorphisms have been found that confer resistance to this disease, such as the haemoglobin S (HbS) and Duffy genes, which provide resistance to P. falciparum and P. vivax infection, respectively. The objective of this study was to evaluate the individual and joint selection actions of these two genes in an Afro-descendant Colombian population. A total of 819 individuals were analysed using stratified random sampling. PCR-RFLP and Hardy-Weinberg equilibrium deviation analysis (H-W eq.), linkage disequilibrium (LD), D'IS2 and D'ST2 indexes, neutrality tests, correlations and fitness were performed using Arlequin 3.5.2.2 and R 3.4.1 software. In general, the population showed neutrality and H-W eq. for the HbS gene but not for the Duffy gene (FYA/FYB, FYA/FYBES and FYB/FYBES genotypes were responsible for this deviation). LD between the HbS locus and the promoter region of the Duffy gene, a value D'IS2 = 0.001 and D'ST2 = 0.020 was found, an increase in fitness of the AS*FYBES/FYBES genotype combination (marked in adolescents and adults), and a strong correlation between these genotypes (Rho = 90%, p = .001) were found, evidencing a possible joint selection action for these two alleles. This work presents evidence of the action of natural selection, both individually and jointly, on malaria resistance genes, HbS and Duffy, in the Buenaventura population.
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Affiliation(s)
- Diana Carolina Ortega
- Human Molecular Genetics Group, Department of Biology, Universidad del Valle, Cali, Colombia
| | - Heiber Cárdenas
- Human Molecular Genetics Group, Department of Biology, Universidad del Valle, Cali, Colombia
| | - Guillermo Barreto
- Human Molecular Genetics Group, Department of Biology, Universidad del Valle, Cali, Colombia.
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Grignard L, Mair C, Curry J, Mahey L, Bastiaens GJH, Tiono AB, Okebe J, Coulibaly SA, Gonçalves BP, Affara M, Ouédraogo A, Bougouma EC, Sanou GS, Nébié I, Lanke KHW, Sirima SB, d'Alessandro U, Clark TG, Campino S, Bousema T, Drakeley C. Bead-based assays to simultaneously detect multiple human inherited blood disorders associated with malaria. Malar J 2019; 18:14. [PMID: 30665411 PMCID: PMC6341711 DOI: 10.1186/s12936-019-2648-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/12/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Glucose-6-phosphate dehydrogenase deficiency (G6PDd), haemoglobin C (HbC) and S (HbS) are inherited blood disorders (IBD) common in populations in malaria endemic areas. All are associated to some degree with protection against clinical malaria whilst additionally G6PDd is associated with haemolysis following treatment with 8-aminoquinolines. Measuring the prevalence of these inherited blood disorders in affected populations can improve understanding of disease epidemiology. Current methodologies in epidemiological studies commonly rely on individual target amplification and visualization; here a method is presented to simultaneously detect the polymorphisms and that can be expanded to include other single nucleotide polymorphisms (SNPs) of interest. METHODS Human DNA from whole blood samples was amplified in a novel, multiplex PCR reaction and extended with SNP-specific probes in an allele specific primer extension (ASPE) to simultaneously detect four epidemiologically important human markers including G6PD SNPs (G202A and A376G) and common haemoglobin mutations (HbS and HbC). The products were hybridized to magnetic beads and the median fluorescence intensity (MFI) was read on MAGPIX® (Luminex corp.). Genotyping data was compared to phenotypical data generated by flow cytometry and to established genotyping methods. RESULTS Seventy-five samples from Burkina Faso (n = 75/78, 96.2%) and 58 samples from The Gambia (n = 58/61, 95.1%) had a G6PD and a HBB genotype successfully assigned by the bead-based assay. Flow cytometry data available for n = 61 samples further supported the concordance between % G6PD normal/deficient cells and genotype. CONCLUSIONS The bead based assay compares well to alternative measures of genotyping and phenotyping for G6PD. The screening is high throughput, adaptable to inclusion of multiple targets of interest and easily standardized.
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Affiliation(s)
- Lynn Grignard
- Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London, UK.
| | - Catherine Mair
- Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London, UK
| | | | | | - Guide J H Bastiaens
- Department of Medical Microbiology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Alfred B Tiono
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Joseph Okebe
- Disease Control & Elimination Theme, Medical Research Council Unit at London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Sam A Coulibaly
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Bronner P Gonçalves
- Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London, UK
| | - Muna Affara
- Disease Control & Elimination Theme, Medical Research Council Unit at London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Alphonse Ouédraogo
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Edith C Bougouma
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Guillaume S Sanou
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Issa Nébié
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Kjerstin H W Lanke
- Department of Medical Microbiology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Sodiomon B Sirima
- Department of Biomedical Sciences, Centre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso
| | - Umberto d'Alessandro
- Disease Control & Elimination Theme, Medical Research Council Unit at London School of Hygiene and Tropical Medicine, Fajara, The Gambia
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, UK
| | - Taane G Clark
- Department of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Susana Campino
- Department of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, UK
| | - Teun Bousema
- Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London, UK
- Department of Medical Microbiology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Chris Drakeley
- Department of Immunology and Infection, London School of Hygiene & Tropical Medicine, London, UK
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Patra PK, Khodiar PK, Hambleton IR, Serjeant GR. The Chhattisgarh state screening programme for the sickle cell gene: a cost-effective approach to a public health problem. J Community Genet 2015; 6:361-8. [PMID: 25822801 PMCID: PMC4567986 DOI: 10.1007/s12687-015-0222-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 03/11/2015] [Indexed: 11/29/2022] Open
Abstract
In India, the Chhattisgarh State screening programme for sickle haemoglobin focuses on children aged 3-15 years and has screened over 1,050,440 subjects over the last 6 years. Commencing in the District around the capital Raipur, this programme has now completed screening in 7 of the 27 Districts of Chhattisgarh State. Screening is initially performed by solubility tests on fingerprick samples in the field and those with positive tests have venipunctures for haemoglobin electrophoresis. The frequency of the sickle cell trait was 9.64 % and of the SS phenotype 0.29 % with only two Districts in Hardy-Weinberg equilibrium, most Districts showing an excess of the SS 'phenotype' most readily explained by symptomatic selection. The estimated costs were US$0.28 (solubility tests alone) and US$0.60 (haemoglobin electrophoresis). Of the social groupings commonly used in India, the OBC's (other backward classes) had the highest frequencies of the sickle cell gene mutations, followed by the Scheduled Tribes and the Scheduled Castes. The objectives of the programme were the detection of sickle cell disease for prospective clinical management and of the sickle cell trait for purposes of genetic counselling. The former objective is being met for diagnosis although the success of referral to clinic services requires audit. The objective of genetic counselling is compromised by the failure of the screening test to detect other genes of potential clinical significance such as HbD Punjab and the beta thalassaemia trait. Despite these exceptions, the detection of HbS appears relatively robust and could be another condition factored into the traditions of partner selection amongst the underprivileged communities of this state. Overall, the Chhattisgarh programme seeks to address the daunting challenges of large populations carrying the sickle cell gene and maybe a useful model for elsewhere.
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Affiliation(s)
- P K Patra
- Department of Biochemistry, Pt. J.N.M. Medical College, Raipur, Chhattisgarh State, India
| | - P K Khodiar
- Department of Biochemistry, Pt. J.N.M. Medical College, Raipur, Chhattisgarh State, India
| | - I R Hambleton
- Chronic Disease Research Centre, The University of the West Indies, Cave Hill, Barbados, West Indies
| | - G R Serjeant
- Sickle Cell Trust (Jamaica), 14 Milverton Crescent, Kingston 6, Jamaica, West Indies.
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Devi M, Subadani Devi S, Debnath K, Devi TM, Singh HN. An autopsy case of sudden death in a patient with sickle cell disease. Indian J Hematol Blood Transfus 2007; 23:109-11. [PMID: 23100927 DOI: 10.1007/s12288-008-0009-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
An autopsy finding of sudden death due to disseminated intra-vascular sickling of RBCs in a young adult male from Madhya Pradesh while undergoing army recruitment rally, is reported because of its rarity in this part of the country.
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Affiliation(s)
- Madhubala Devi
- Regional Institute of Medical Sciences, Lamphel, Imphal, Manipur, 795 004 India
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