1
|
Sawadogo S, Nebie K, Kima D, Ouedraogo SKA, Nagnon PA, Koulidiati J, Traore C, Sawadogo S, Kafando E, Deneys V. Feasibility and performance of in-house red blood cell reagents to detect unexpected antibodies in immunized patients in Burkina Faso. Immunohematology 2023; 39:172-180. [PMID: 38179780 DOI: 10.2478/immunohematology-2023-025] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
In sub-Saharan Africa, antibody detection tests remain inaccessible because of the high cost and limited shelf life of red blood cell (RBC) reagents. This study aimed at investigating the feasibility and performance of locally prepared RBC reagents for antibody detection in Burkina Faso. We conducted an experimental study comparing commercial RBC panels and a local panel prepared from phenotyped blood donors in Ouagadougou, Burkina Faso. Antibody detection testing was performed by the indirect antiglobulin test using a gel card filtration column in a low-ionic-strength solution. Judgment criteria were the concordance rate and the kappa agreement coefficient of results generated by the two panels. A total of 302 blood donors were phenotyped for the major antigens of the RH, KEL, MNS, FY, JK, LE, and P1PK blood group systems. From this pool of donors, we designed an RBC detection panel that was used to screen for unexpected antibodies in 1096 plasma samples from 832 patients with a history of transfusion and 264 recently delivered or pregnant women with no history of blood transfusion. A positive antibody detection test was observed in 8.1 percent of the samples using the local panel versus 6.4 percent with the commercial panels. A total of 23 samples were negative with the commercial panels and positive with the local panel, while the findings were reversed for four samples. The concordance rate was 97.5 percent, and the kappa agreement coefficient was 0.815. Our results suggest that the development of local RBC panels can be an alternative to commercial panels in countries with limited resources. It could also be a cost-effective intervention, mainly for children under 5 years of age, women of childbearing age, and pregnant women, all of whom are most at risk for malaria and sickle cell disease complications. Blood services could develop and implement appropriate strategies to make phenotyped donor pools available for the design of suitable RBC panels.
Collapse
Affiliation(s)
- S Sawadogo
- biomedical and pharmaceutical sciences Lecturer/Medical Biologist, Laboratory of Hematology, University Joseph KI-ZERBO, 01 BP 7021 Ouagadougou 01, Ouagadougou, Burkina Faso
| | - K Nebie
- Lecturer/Medical Biologist, Laboratory of Hematology, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - D Kima
- immunology and biochemistry, Laboratory of Hematology, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - S K A Ouedraogo
- Laboratory of Hematology, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - P A Nagnon
- Laboratory of Hematology, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - J Koulidiati
- Lecturer/Hematologist, Department of Medicine, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - C Traore
- Lecturer/Hematologist, Department of Medicine, University Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - S Sawadogo
- Senior Lecturer/Biological Hematologist, Department of Biological Laboratories, University Nazi Boni, Bobo-Dioulasso, Burkina Faso
| | - E Kafando
- biomedical and pharmaceutical sciences, Professor/Medical Biologist, Laboratory of Hematology, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - V Deneys
- biomedical and pharmaceutical sciences, Professor/Medical Biologist, Catholic University of Louvain, Brussels, Belgium
| |
Collapse
|
2
|
Sawadogo S, Nebie K, Ouedraogo SKA, Traore C, Koulidiati J, Nikiema-Minoungou M, Koala NG, Kafando E, Deneys V. Extended red blood cell antigens and phenotypes in Burkina Faso: potential issues to design local population-sourced red blood cell reagent panels. Immunohematology 2023; 39:35-42. [PMID: 37017596 DOI: 10.21307/immunohematology-2023-007] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
To date, 43 blood group systems with 349 red blood cell (RBC) antigens have been recognized. The study of their distribution is useful for blood services to improve their supply strategies for providing blood of rare phenotypes, but also to design indigenous RBC panels for alloantibody screening and identification. In Burkina Faso, the distribution of extended blood group antigens is not known. This study aimed to investigate the extended profiles of blood group antigens and phenotypes of this population and to raise limitations and potential strategies for the design of local RBC panels. We conducted a cross-sectional study that included group O blood donors. Extended phenotyping for antigens in the Rh, Kell, Kidd, Duffy, Lewis, MNS, and P1PK systems was performed using the conventional serologic tube technique. The prevalence of each antigen and phenotype combination was determined. A total of 763 blood donors were included. The majority were positive for D, c, e, and k and negative for Fya and Fyb. The prevalence of K, Fya, Fyb, and Cw was less than 5 percent. The most frequent Rh phenotype was Dce, and the most common probable haplotype was R0R0 (69.5%). For the other blood group systems, the K-k+ (99.4%), M+N+S+s- (43.4%), and Fy(a-b-) (98.8%) phenotypes were the most frequent. Antigenic polymorphism of blood group systems by ethnicity and geography argues for the design and evaluation of population-sourced RBC panels to meet specific antibody profiles. However, some of the specificities identified in our study, such as the rarity of double-dose antigen profiles for certain antigens and the cost of antigen phenotyping tests, are major challenges to overcome.
Collapse
Affiliation(s)
- S Sawadogo
- Laboratory of Hematology, University Joseph KiZerbo, 01 BP 7021 Ouagadougou 01, Burkina Faso
| | - K Nebie
- Laboratory of Hematology, University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
| | - S K A Ouedraogo
- Laboratory of Hematology, University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
| | - C Traore
- Department of Medicine, University Nazi Bony, Bobo-Dioulasso, Burkina Faso
| | - J Koulidiati
- Department of Medicine, University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
| | - M Nikiema-Minoungou
- Medical Laboratory Department, University Hospital Yalgado Ouédraogo, Ouagadougou, Burkina Faso
| | - N G Koala
- National Blood Transfusion Center, Ouagadougou, Burkina Faso
| | - E Kafando
- Laboratory of Hematology, University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
| | - V Deneys
- Catholic University of Louvain, Brussels, Belgium
| |
Collapse
|
3
|
Dabiré PA, Ouédraogo Y, Somé AA, Sawadogo S, Ouédraogo I, Ilboudo EM, Belemtougri RG. Relaxant Effects of the Aqueous Extract of Excoecaria grahamii (Euphorbiaceae) Leaves on Uterine Horn Contractility in Wistar Rats. Biomed Res Int 2021; 2021:6618565. [PMID: 33928151 PMCID: PMC8053055 DOI: 10.1155/2021/6618565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/27/2021] [Accepted: 04/03/2021] [Indexed: 11/27/2022]
Abstract
In uterine smooth muscle, the effects of Excoecaria grahamii are not yet documented. To fill this gap, we investigated the pharmacological effect of Excoecaria grahamii on the contraction of the rat isolated uterine horns. The isolated segments were exposed to different concentrations of the aqueous extract of Excoecaria grahamii leaves and pharmacological drugs. The results showed that Excoecaria grahamii aqueous extract decreased the amplitude and frequency by concentration-related manner. IC50 values were 2.4 and 2.6, respectively, for amplitude and frequency. Our study revealed that the extract did not act through histamine H2-receptors or the nitric oxide pathway. It also inhibited uterine contractions induced by oxytocin and potassium chloride (KCl). These data suggest that Excoecaria grahamii active compound can be used for calming uterine contractions. The action of Excoecaria grahamii showed that it can be useful to fight against diseases which caused uterotonic effects. It can be useful to prevent preterm birth and pains caused by menstruations but further investigation is needed to clarify the mechanism action.
Collapse
Affiliation(s)
- Prosper A. Dabiré
- Department of Life and Earth Sciences, Institute of Sciences, 01 BP 1757 Ouagadougou 01, Burkina Faso
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Youssoufou Ouédraogo
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Abel A. Somé
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Stanislas Sawadogo
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Issaka Ouédraogo
- Department of Life and Earth Sciences, Institute of Sciences, 01 BP 1757 Ouagadougou 01, Burkina Faso
- Laboratory of Plant Biology and Ecology, Department of Plant Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Edith M. Ilboudo
- Department of Life and Earth Sciences, Institute of Sciences, 01 BP 1757 Ouagadougou 01, Burkina Faso
- Laboratory of Entomology, Department of Animal Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Raymond G. Belemtougri
- Laboratory of Animal Physiology, Department of Animal Biology and Physiology, University Joseph Ki-Zerbo, 03 BP 7021 Ouagadougou 03, Burkina Faso
| |
Collapse
|
4
|
Ruswa N, Mavhunga F, Roscoe JC, Beukes A, Shipiki E, van Gorkom J, Sawadogo S, Agolory S, Menzies H, Tiruneh D, Makumbi B, Bayer B, Zezai A, Campbell P, Alexander H, Kalisvaart N, Forster N. Second nationwide anti-tuberculosis drug resistance survey in Namibia. Int J Tuberc Lung Dis 2020; 23:858-864. [PMID: 31439119 DOI: 10.5588/ijtld.18.0526] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING: Namibia ranks among the 30 high TB burden countries worldwide. Here, we report results of the second nationwide anti-TB drug resistance survey.OBJECTIVE: To assess the prevalence and trends of multidrug-resistant TB (MDR-TB) in Namibia.METHODS: From 2014 to 2015, patients with presumptive TB in all regions of Namibia had sputum subjected to mycobacterial culture and phenotypic drug susceptibility testing (DST) for rifampicin, isoniazid, ethambutol and streptomycin if positive on smear microscopy and/or Xpert MTB/RIF.RESULTS: Of the 4124 eligible for culture, 3279 (79.5%) had Mycobacterium tuberculosis isolated. 3126 (95%) had a first-line DST completed (2392 new patients, 699 previously treated patients, 35 with unknown treatment history). MDR-TB was detected in 4.5% (95%CI 3.7-5.4) of new patients, and 7.9% (95%CI 6.0-10.1) of individuals treated previously. MDR-TB was significantly associated with previous treatment (OR 1.8, 95%CI 1.3-2.5) but not with HIV infection, sex, age or other demographic factors. Prior treatment failure demonstrated the strongest association with MDR-TB (OR 17.6, 95%CI 5.3-58.7).CONCLUSION: The prevalence of MDR-TB among new TB patients in Namibia is high and, compared with the first drug resistance survey, has decreased significantly among those treated previously. Namibia should implement routine screening of drug resistance among all TB patients.
Collapse
Affiliation(s)
- N Ruswa
- Ministry of Health and Social Services, Windhoek, Namibia, KNCV Tuberculosis Foundation, The Hague, The Netherlands
| | - F Mavhunga
- Ministry of Health and Social Services, Windhoek, Namibia
| | - J C Roscoe
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - A Beukes
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - E Shipiki
- Namibia Institute of Pathology, Windhoek, Namibia
| | - J van Gorkom
- KNCV Tuberculosis Foundation, The Hague, The Netherlands
| | - S Sawadogo
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - S Agolory
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - H Menzies
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - D Tiruneh
- World Health Organization, Geneva, Switzerland
| | - B Makumbi
- Namibia Institute of Pathology, Windhoek, Namibia
| | - B Bayer
- Ministry of Health and Social Services, Windhoek, Namibia
| | - A Zezai
- KNCV Tuberculosis Foundation, The Hague, The Netherlands
| | - P Campbell
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - H Alexander
- US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - N Kalisvaart
- KNCV Tuberculosis Foundation, The Hague, The Netherlands
| | - N Forster
- Ministry of Health and Social Services, Windhoek, Namibia, International Training & Education Center for Health, Department of Global Health, University of Washington, Seattle, WA, USA
| |
Collapse
|
5
|
Nebie K, Sawadogo S, Kafando E, Bationo EM, Dahourou H, Ouattara S, Kienou K, Nana S, Kaba L, Fretz C, Murphy EL. [Role of quality control for improvement of blood components in the Regional Blood Centre of Ouagadougou in Burkina Faso, 2014]. Transfus Clin Biol 2017; 24:431-439. [PMID: 28583468 DOI: 10.1016/j.tracli.2017.05.002] [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] [Received: 09/09/2016] [Accepted: 05/02/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES In Burkina Faso, blood components must comply with national standards. Then, all Transfusion services must implement a quality control process to ensure compliance. Our study aims to establish the main characteristics of blood components of the regional transfusion center of Ouagadougou, and evaluate the capability of this center to improve its manufacturing process. METHODS We conducted from marsh to December 2014 a pre-post study, assessing blood components' characteristics before and after the implementation of a six months' improvement plan. The assessed parameters were: volume, hematocrit (Ht) and hemoglobin (Hb) levels in RBCs; volume and the number of platelets in PPCs; and volume and concentration of clotting factor VIII in fresh frozen plasma (FFP), respectively. Three hundred and twelve RBCs and 280 PCs were randomly selected for the first series of controls, and 215 RBCs, 54 PCs and 60 FFP were selected for the second series of controls. We compared the mean values of the components parameters and the overall non-compliance rates for each series. RESULTS The average Hb level of RBCs was respectively 47.8±8.9g and 54.7±7.2g in the first and second series compare to a standard of≥40g. Non-compliance rates of Hb level decreased significantly from 17.6% to 1.4%. For PCs units, the mean number of platelets was 0.14±0.10×1011 and 0.30±0.15×1011 in the first and second period compare to a standard of 0.5×1011. Non-compliance rates for platelets number were high 97.1% and 72.2%. CONCLUSION The study demonstrates that only RBCs complied with national standards. The study also demonstrates the capability of CRTSO to improve blood components' processing even if for PCs and FFP, NC rates remain high. QC must be maintained and expanded to the others regional blood centers of the country.
Collapse
Affiliation(s)
- K Nebie
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso; Centre national de transfusion sanguine, 01 BP 5372, Ouagadougou 01, Burkina Faso.
| | - S Sawadogo
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso; Centre national de transfusion sanguine, 01 BP 5372, Ouagadougou 01, Burkina Faso
| | - E Kafando
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - E M Bationo
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - H Dahourou
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - S Ouattara
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - K Kienou
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - S Nana
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - L Kaba
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - C Fretz
- Établissement français du sang (EFS) Île-de-France, 122-130, rue Marcel-Hartmann-Leapark, bâtiment B, 94200 Ivry-sur-Seine, France
| | - E L Murphy
- UCSF, Blood systems Research Institute, 270, Masonic Avenue, San Francisco, CA 94118-4417, États-Unis
| |
Collapse
|
6
|
Sawadogo S, Kafando E, Nébié K, Ouédraogo AS, Ouattara S, Dahourou H, Fretz C, Deneys V. [Factors associated with the satisfaction of prescribers of blood products in Burkina Faso]. Transfus Clin Biol 2017; 24:440-448. [PMID: 28571691 DOI: 10.1016/j.tracli.2017.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 09/06/2016] [Accepted: 04/21/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND The National Blood Transfusion Centre, unique operator of blood transfusion in Burkina Faso is engaged into the quality process according to ISO 9001. Therefore, the assessment of customer satisfaction is a main part of its system. Our study conceives "customer satisfaction" as dependant to the perceived service quality based on SERVQUAL model. OBJECTIVES To identify factors associated with the satisfaction of blood products prescribers in order to help decision-makers for continuous improvement of services. MATERIAL AND METHODS We conducted a cross-sectional survey among prescribers of blood components in Ouagadougou, between February 27 and April 30, 2015. We used an anonymous self-administered questionnaire, including 13 items associated to the 5 dimensions of SERVQUAL model. The different satisfaction gaps were calculated and linear regression was used to determine statistical associations with a significance level of 5%. RESULTS The return rate was 94.5% about the 256 questionnaires distributed. A total of 30% of respondents were satisfied to very satisfied. The overall global gap of satisfaction was -5.74. The product delivery time, the efficacy and safety of blood products, the medical and clinical support, the pro-activity of the communication, the management of blood products reservation and the satisfaction of needs in blood products were the factors associated with the prescribers' satisfaction. CONCLUSION This first study in blood transfusion services in our context was been useful to assess customer satisfaction and identify the main axes on which targeting priority actions in order to effectively use available resources.
Collapse
Affiliation(s)
- S Sawadogo
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP, 7021 Ouagadougou, Burkina Faso; Centre national de transfusion sanguine, avenue Kumda-Yoonré, 01 BP, 5372 Ouagadougou, Burkina Faso.
| | - E Kafando
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP, 7021 Ouagadougou, Burkina Faso
| | - K Nébié
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP, 7021 Ouagadougou, Burkina Faso; Centre national de transfusion sanguine, avenue Kumda-Yoonré, 01 BP, 5372 Ouagadougou, Burkina Faso
| | - A-S Ouédraogo
- Laboratoire d'hématologie, UFR/SDS, université Ouaga I Professeur Joseph Ki-Zerbo, 03 BP, 7021 Ouagadougou, Burkina Faso
| | - S Ouattara
- Centre national de transfusion sanguine, avenue Kumda-Yoonré, 01 BP, 5372 Ouagadougou, Burkina Faso
| | - H Dahourou
- Centre national de transfusion sanguine, avenue Kumda-Yoonré, 01 BP, 5372 Ouagadougou, Burkina Faso
| | - C Fretz
- Établissement français du sang, Île-de-France, 122-130, rue Marcel-Hartmann-Leapark, bâtiment B, 94200 Ivry-sur-Seine, France
| | - V Deneys
- Service de transfusion sanguine, CHU UCL-Namur-Asbl, site de Godinne, 1, avenue Docteur-G.-Thérasse, 5530 Yvoir, Belgique
| |
Collapse
|
7
|
Brisebarre A, Kumulungui B, Sawadogo S, Afridi S, Fumoux F, Rihet P. Genome-wide significant linkage to IgG subclass responses against Plasmodium falciparum antigens on chromosomes 8p22-p21, 9q34 and 20q13. Genes Immun 2014; 16:187-92. [PMID: 25521226 DOI: 10.1038/gene.2014.66] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 10/16/2014] [Accepted: 10/16/2014] [Indexed: 11/09/2022]
Abstract
A genome-wide scan was conducted for the levels of total immunoglobulin G (IgG) and IgG subclasses directed against Plasmodium falciparum antigens in an urban population living in Burkina Faso. Non-parametric multipoint linkage analysis provided three chromosomal regions with genome-wide significant evidence (logarithm of the odds (LOD) score >3.6), and five chromosomal regions with genome-wide suggestive evidence (LOD score >2.2). IgG3 levels were significantly linked to chromosomes 8p22-p21 and 20q13, whereas IgG4 levels were significantly linked to chromosome 9q34. In addition, we detected suggestive linkage of IgG1 levels to chromosomes 18p11-q12 and 18q12-q21, IgG4 levels to chromosomes 1p31 and 12q24 and IgG levels to chromosome 6p24-p21. Moreover, we genotyped genetic markers located within the regions of interest in a rural population living in Burkina Faso. We detected genome-wide significant and suggestive linkage results when combining the two study populations for chromosomes 1p31, 6p24-p21, 8p22-p21, 9q34, 12q24 and 20q13. Because high anti-parasite IgG3 and low anti-parasite IgG4 levels were associated with malaria resistance, the chromosomal regions linked to IgG3 and IgG4 levels are of special interest. Although the results should be confirmed in an independent population, they may provide new insights in understanding both the genetic control of IgG production and malaria resistance.
Collapse
Affiliation(s)
- A Brisebarre
- 1] INSERM, UMR1090 TAGC, Marseille, France [2] Aix-Marseille Université, Marseille, France
| | - B Kumulungui
- Université des Sciences et Techniques de Masuku, Institut National Supérieur d'Agronomie et de Biotechnologies, Franceville, Gabon
| | - S Sawadogo
- University of Ouagadougou, UFR des Sciences de la Santé, Ouagadougou, Burkina Faso
| | - S Afridi
- 1] INSERM, UMR1090 TAGC, Marseille, France [2] Aix-Marseille Université, Marseille, France
| | - F Fumoux
- 1] Aix-Marseille Université, Marseille, France [2] UMR-MD3, Marseille, France
| | - P Rihet
- 1] INSERM, UMR1090 TAGC, Marseille, France [2] Aix-Marseille Université, Marseille, France
| |
Collapse
|
8
|
Sawadogo S, Ouedraogo O, Kanta A, Delisle H, Mesenge C. P027: Les mères burkinabées peuvent-elles toujours nourrir correctement leurs enfants ? NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70670-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
9
|
Guira O, Tiéno H, Sawadogo S, Drabo J. Sexualité et risque de transmission sexuelle du virus de l’immunodéficience humaine chez les couples sérodiscordants à Ouagadougou (Burkina Faso). Sexologies 2013. [DOI: 10.1016/j.sexol.2013.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
10
|
Guira O, Tiéno H, Sawadogo S, Drabo JY. [Sexuality and risk for sexual transmission of HIV among serodiscordant couples in Ouagadougou, Burkina Faso]. ACTA ACUST UNITED AC 2013; 106:43-7. [PMID: 23315272 DOI: 10.1007/s13149-012-0271-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 10/23/2012] [Indexed: 10/27/2022]
Abstract
This article is a contribution to improve the management of serodiscordant couples in Ouagadougou. The aim of the study was to explore sexuality and the risk for sexual transmission of HIV among serodiscordant couples followed-up in CHU-YO. The study consisted of a descriptive cross-sectional study conducted over 6 months, from 1 January 2010 to 30 June 2010. A total of 80 heterosexual serodiscordant couples participated. Women were infected with HIV in most cases (75%). The mean age was 37.5 years for HIV partners and 40 years for seronegatives. Men were significantly older than women (p = 0.01). The couples weremarried (83.7%) or cohabiting (16.3%). The average of serodiscordance duration was 4 years. Seventy-four couples (92.5%) engaged in sexual intercourses, mostly vaginal intercourses. Both partners were satisfied only in 9 couples (12.2%). Although most couples (97.5%) knew the use of condoms for HIV prevention, 59.5% did not use it consistently, particularly when women were the seropositive partners (p = 0.01). The lack of privacy (37.5%) and desire of childbearing (26.25%) were the main reasons for not consistently using condoms among couples. Sexual dysfunction was a concern with 97.5% of the couples. The decrease in libido was most common (37.2%). Sexual intercourses with an outside partner were reported in 20 couples (25%), mostly regarding men (p = 0.03). Specific management could improve the quality of sexual life for couples in the light of the difficulties they face and reduce the risk for HIV transmission to negative partners.
Collapse
Affiliation(s)
- O Guira
- Université de Ouagadougou, Ouagadougou, Burkina Faso.
| | | | | | | |
Collapse
|
11
|
Zirkel J, Cecil A, Schäfer F, Rahlfs S, Ouedraogo A, Xiao K, Sawadogo S, Coulibaly B, Becker K, Dandekar T. Analyzing Thiol-Dependent Redox Networks in the Presence of Methylene Blue and Other Antimalarial Agents with RT-PCR-Supported in silico Modeling. Bioinform Biol Insights 2012; 6:287-302. [PMID: 23236254 PMCID: PMC3516044 DOI: 10.4137/bbi.s10193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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] [Indexed: 11/29/2022] Open
Abstract
Background In the face of growing resistance in malaria parasites to drugs, pharmacological combination therapies are important. There is accumulating evidence that methylene blue (MB) is an effective drug against malaria. Here we explore the biological effects of both MB alone and in combination therapy using modeling and experimental data. Results We built a model of the central metabolic pathways in P. falciparum. Metabolic flux modes and their changes under MB were calculated by integrating experimental data (RT-PCR data on mRNAs for redox enzymes) as constraints and results from the YANA software package for metabolic pathway calculations. Several different lines of MB attack on Plasmodium redox defense were identified by analysis of the network effects. Next, chloroquine resistance based on pfmdr/and pfcrt transporters, as well as pyrimethamine/sulfadoxine resistance (by mutations in DHF/DHPS), were modeled in silico. Further modeling shows that MB has a favorable synergism on antimalarial network effects with these commonly used antimalarial drugs. Conclusions Theoretical and experimental results support that methylene blue should, because of its resistance-breaking potential, be further tested as a key component in drug combination therapy efforts in holoendemic areas.
Collapse
Affiliation(s)
- J Zirkel
- Department of Bioinformatics, Biocenter, University of Würzburg, Germany. ; Centre de Recherche en Santé de Nouna, Nouna, Burkina Faso
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Aidoo M, Sawadogo S, Bile EC, Yang C, Nkengasong JN, McNicholl JM. Viral, HLA and T cell elements in cross-reactive immune responses to HIV-1 subtype A, CRF01_AE and CRF02_AG vaccine sequence in Ivorian blood donors. Vaccine 2008; 26:4830-9. [PMID: 18640166 DOI: 10.1016/j.vaccine.2008.06.097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Revised: 06/21/2008] [Accepted: 06/30/2008] [Indexed: 10/21/2022]
Abstract
Comprehensive understanding of the determinants of cross-subtype immune responses in HIV infection is critical to developing efficacious HIV vaccines against multiple viral subtypes. Because HIV-1 subtype A or recombinants comprising subtype A are prevalent in Africa and parts of Asia where HIV is spreading, we assessed the determinants of cross-subtype immune responses in HIV-infected blood donors from Cote d'Ivoire to peptides from a candidate CRF02_AG vaccine sequence, a subtype A sequence from western Kenya and a CRF01_AE sequence from Thailand. We present evidence that immune recognition of multiple viral subtypes is maintained by recognition of multiple epitopes. Our data suggest that complete escape of HIV from immune recognition is uncommon. Evaluation of these frequently generated cross-reactive responses should be included in immunogenicity trials of HIV vaccines.
Collapse
Affiliation(s)
- M Aidoo
- Laboratory Branch, Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | | | | | | | | | | |
Collapse
|
13
|
Barro-Traoré F, Preney L, Traoré A, Darie H, Tapsoba P, Bassolé A, Sawadogo S, Niamba P, Grosshans E, Geniaux M. [Cutaneous leishmaniasis due to Leishmania major involving the bone marrow in an AIDS patient in Burkina Faso]. Ann Dermatol Venereol 2008; 135:380-3. [PMID: 18457724 DOI: 10.1016/j.annder.2007.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2007] [Accepted: 10/26/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND Leishmaniasis covers three well-individualized clinical variants, each due to individual species found in different geographic areas. Herein we report the first case of cutaneous leishmaniasis due to Leishmania major involving bone marrow in an AIDS patient in Burkina Faso. CASE REPORT A 38-year-old HIV-positive man presented with generalized, copper-coloured, painless, infiltrated, itching, papulonodular lesions present over the previous 10 months. Skin biopsy confirmed the diagnosis of diffuse cutaneous leishmaniasis. The bone-marrow smear showed numerous leishmania. The culture was positive and L. major was identified. The patient was being treated with antiretroviral medication and a pentavalent antimonial compound. The disease progression consisted of attacks and remissions separated by an average of three weeks. DISCUSSION L. major is the Leishmania species identified in Burkina Faso. It is responsible for typical cutaneous leishmaniasis but particular clinical forms have been described in immunodeficient patients, especially with diffuse cutaneous involvement. The spread of L. major infection to bone marrow could represent a public health problem in our country, where the HIV epidemic is still not under control, and particular vigilance is thus called for.
Collapse
Affiliation(s)
- F Barro-Traoré
- Service de dermatologie et de vénéréologie de Ouagadougou, B.P. 3016, Ouagadougou 01, Burkina Faso.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Barro-Traoré F, Ouédraogo MS, Sanou-Lamien A, Lompo-Goumbri O, Bassollé AM, Sawadogo S, Korsaga-Somé N, Niamba P, Traoré A. [Disseminated subcutaneous cysticercosis: a report of six cases in Burkina Faso]. Bull Soc Pathol Exot 2008; 101:17-19. [PMID: 18432000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Cysticercosis is an infection resulting from the larval form of the pig tapeworm, Taenia solium. The subcutaneous localizations are frequent and can have serious consequences such as neurological attacks. We report six cases among whom five men and a woman, in order to point out the severity of the disease and its possible dissemination. The patients' age was ranging from 25 to 57 years old. Three of them had neurological complications as convulsions and headaches. The nodules were painful in one case. We recommend sanitary education to eradicate the affection and to sensitize patients in order to consult physicians at early stage.
Collapse
Affiliation(s)
- F Barro-Traoré
- Service de dermatologie, Centre hospitalier universitaire Yalgado-Ouédraogo (CHU-YO), Ouagadougou, Burkina Faso. E
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Barro-Traoré F, Preney L, Traoré A, Darie H, Tapsoba P, Diatto G, Bassolé A, Sawadogo S, Niamba P, Grosshans E, Geniaux M. CO26 - Premier cas de leishmaniose cutanée à Leishmania major avec extension viscérale à la moelle chez un patient infecté par le VIH au Burkina Faso. Ann Dermatol Venereol 2007. [DOI: 10.1016/s0151-9638(07)89059-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
16
|
Traoré A, Barro-Traoré F, Rouamba R, Traoré K, Bassolé A, Niamba P, Sawadogo S. CO14 - Les mycoses superficielles en consultation dermatologique dans la ville de Ouagadougou : aspects épidémiologiques, cliniques et mycologiques. Ann Dermatol Venereol 2007. [DOI: 10.1016/s0151-9638(07)89047-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
Barro-Traoré F, Andonaba J, Korsaga N, Bassolé A, Sawadogo S, Traoré K, Traoré A. CA23 - Cryptococcose cutanée disséminée avec une atteinte pulmonaire chez un patient infecté par VIH. Ann Dermatol Venereol 2007. [DOI: 10.1016/s0151-9638(07)89121-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Brouqui P, Le Cam C, Kelly PJ, Laurens R, Tounkara A, Sawadogo S, Gondao L, Faugere B, Delmont J. Serologic evidence for human ehrlichiosis in Africa. Eur J Epidemiol 1994; 10:695-8. [PMID: 7672049 DOI: 10.1007/bf01719283] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Human ehrlichiosis is a recently recognized rickettsial disease. It is caused by Ehrlichia chaffeensis, an intraleucocytic Gram-negative, obligate intracellular bacterium, grouped within the genus Ehrlichiae. Most human cases of ehrlichiosis have been diagnosed in the USA. Two cases have been reported outside of the USA, one in Europe and one in Africa. From 1 January to 30 June 1992, 765 sera from blood donors or other asymptomatic subjects in 8 African countries, including Ivory Coast, Burkina Faso, Mali, Central African Republic, Angola, Zimbabwe, Mozambique and Commores Islands, were tested by indirect immunofluorescence for the presence of E. chaffeensis antibodies. Positive sera were confirmed by Western immunoblotting. Only two of 765 sera tested were positive. One serum obtained from Burkina Faso had an IgG titer of 1:200 and one from Mozambique had an IgG titer of 1:80. Human ehrlichiosis seems to occur infrequently in Africa, although many more sera from additional African countries need to be evaluated.
Collapse
Affiliation(s)
- P Brouqui
- Unité des Rickettsies, Faculté de Médecine de la Timone, Marseille, France
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Sangare A, Sanogo I, Koffi CI, Kple-Faget P, Meite M, Sawadogo S, Segbena A, Ambofo Y. [Prevalence and clinical profile of hemophilia of black Africans in urban areas of the Ivory Coast]. Med Trop (Mars) 1990; 50:221-5. [PMID: 2166893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The authors report 20 haemophilic cases during a screening performed in urban area (Abidjan) in a population of 2.500 male subjects. They estimate the disease prevalence at 0.8%. The only haemophilia form identified is the A form, which does not seem to prevail in a particular ethnic group. No clinical significant particularity has been observed, otherwise.
Collapse
Affiliation(s)
- A Sangare
- Service d'Hématologie du Centre Hospitalier Universitaire de Cocody, B.P. V 166 Abidjan
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Sangare A, Fabritius H, Sanogo I, Kple-Faget P, Sawadogo S, Ambofo Y. [Clinical and hematological profile of hemoglobin C Ziguinchor (Cz) in Western Africa]. Med Trop (Mars) 1989; 49:389-93. [PMID: 2622319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The authors report 10 cases of Hb C Ziguinchor share out in 3 features ACz, SCz, Cz-PHHF (HPFH: hereditary persistence of foetal hemoglobin). The clinical and hematological study of the features has allowed the following conclusions: the Hb Cz is a rare mutant specific of the Negro and which original focus may be in Senegal. The heterozygote form (ACz) does not present any clinical manifestation. The association Hb S-Hb Cz brings about a serious hemoglobinopathy which has clinical and hematological features like the sickle cell disease (SS). The association Hb Cz-HPFH is relatively supported in spite of episodic painful crisis.
Collapse
Affiliation(s)
- A Sangare
- Service d'Hématologie du Centre Hospitalier Universitaire de Cocody, Abidjan
| | | | | | | | | | | |
Collapse
|