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Profile of SARS-CoV-2 Infected Patients Hospitalized at the Epidemic Treatment Center (ETC) in Saint-Louis, Senegal during the First Two Waves

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Advances in Infectious Diseases 2024年第2期14卷 322-337页

作者： Alassane Dièye Papa Latyr Junior Diouf Bourama Diémé Moustapha Diedhiou diatou dia-Gueye amadou diop dia.samba niang Ibrahima Louis Martin Dieng Ameth Dieng Seynabou Lô Ndéye Méry dia-Badiane Health Sciences Training and Research Unit Gaston Berger University Saint-Louis Senegal Emergency Department of Regional Hospital Center Saint-Louis Senegal Department of Infectious and Tropical Diseases of Fann Dakar Senegal

Introduction: The SARS-CoV-2 infection is a major public health emergency. Several risk factors are involved in the occurrence of respiratory distress that can lead to death despite resuscitation measures. Objectives: The aim of this study was to describe the epidemiological, clinical, paraclinical, therapeutic, and evolution profile of patients infected with SARS-CoV-2 hospitalized at the CTE of Saint-Louis (Senegal) during the first two waves. Patients and Methods: We conducted a retrospective, cross-sectional, descriptive, and analytical study that included all patients hospitalized at the ETC of Saint-Louis (Senegal) with SARS-CoV-2 infection from March 2020 to April 2021. Results: A total of 358 cases were collected, 256 (71.5%) during the first wave and 102 (28.5%) during the second wave. The mean age was 49.5 years (19.5). There was a male predominance (58.4%), with a sex ratio of 1.4. Hypertension was the main comorbidity, with 87 cases (24.3%). The most common functional signs were cough in 194 cases (54.2%), dyspnea in 143 cases (40%) and ageusia in 134 cases (37.4%). Thoracic CT scans were performed on 20 patients (5.6%), with severe involvement (50% - 75%) observed in 50% of cases. Hydroxychloroquine-azithromycin was prescribed to 351 patients (98%). Overall, 338 (94.4%) recovered and 17 (4.7%) died. In multivariate analysis, factors associated with death were male sex [OR = 2.645;95% CI: 1.530 - 4.785;p = 0.011], age 60 years [OR = 1.039;95% CI: 0.564 - 1.914;p = 0.002], the presence of comorbidities [OR = 2.171;95% CI: 0.564 - 3.429;p = 0.033], SpO2 (ambient air) 95% [OR = 2.061;95% CI: 0.616 - 3.827;p = 0.03], acute respiratory distress syndrome (ARDS) [OR = 0.635;95% CI: 0.316 - 1.275;p = 0.001], severe form [OR = 1.664;95% CI: 0.298 - 2.478;p = 0.016], occurrence of complications [OR = 0.521;95% CI: 0.287 - 0.944;p = 0.032], high creatinine levels [OR = 2.061;95% CI: 1.616 - 3.827;p = 0.026], and lymphopenia [OR = 0.485;95% CI: 0.370 - 0.636;p = 0.0

关键词： SARS-CoV-2 Saint-Louis Senegal

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COVID-19/Tuberculosis Co-Infection at the Epidemic Treatment Center (ETC) of Saint-Louis (Senegal): About 9 Cases

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Advances in Infectious Diseases 2024年第1期14卷 56-66页

作者： Alassane Dièye Moustapha Diedhiou Papa Latyr Junior Diouf Mba Bambo diakhaby Demba Makalou samba niang diatou dia-Gueye amadou diop dia Ibrahima Louis Martin Dieng Seynabou Lô Ndéye Méry dia-Badiane Health Sciences Training and Research Unit Gaston Berger University Saint-Louis Senegal Department of Medicine Saint-Louis Regional Hospital Saint-Louis Senegal Infectious and Tropical Diseases Clinic of Fann Dakar Senegal

Introduction: COVID-19 is a global public health emergency that can cause acute respiratory distress syndrome. In countries where tuberculosis (TB) is endemic, coinfection of COVID-19 and TB is often encountered, which increases the risk of developing severe forms of COVID-19. Objectives: The aim of this study was to determine the prevalence of COVID-19/TB coinfection at the Epidemic treatment center (ETC) in Saint-Louis (Senegal) and to describe the epidemiological, clinical, paraclinical, and outcome profile of co-infected patients. Patients and Methods: This is a retrospective, cross-sectional, descriptive cohort study based on the records of COVID-19/ TB co-infected patients who were hospitalized at the ETC in Saint-Louis (Senegal) over an 18-month period from March 2020 to September 2021. Results: Out of a total of 454 hospitalizations, we collected records of 9 patients co-infected with COVID-19/TB, resulting in a prevalence of 2%. The study included patients with a median age of 34 years (range: 10-86 years), with a male predominance (7 cases) and a sex ratio of 3.5. The majority of patients (88.9%) had severe forms of COVID-19. Dyspnea and cough were reported in all patients (100%). Pulmonary TB was the most frequent localization, with 9 cases. The diagnosis of COVID-19 was confirmed by nasopharyngeal PCR in all patients (100%). Bacilloscopy was positive in 3 out of 5 cases. One patient tested positive for GeneXpert? MTB/RIF without rifampicin resistance. All patients were prescribed the hydroxychloroquine-azithromycin combination and anti-tuberculosis treatment. Out of the nine patients, four recovered (44.4%) and five died (55.5%). Conclusion: COVID-19/TB coinfection had a low prevalence in our cohort, but was associated with a high mortality due to the frequent occurrence of severe forms of the disease.

关键词： COVID-19 Tuberculosis Saint-Louis Senegal

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Evaluation of Nutritional Composition of Two Fonio Ecotypes Grown in Casamance (Sénégal)

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Open Journal of Applied Sciences 2024年第2期14卷 533-544页

作者： amadou Bouye Seydi amadou diop Animal Physiology Laboratory Department of Animal Biology Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal Analytical Chemistry and Bromatology Laboratory Faculty of Medicine Pharmacy and Odontology of Dakar Cheikh Anta Diop University Dakar Senegal

In order to better understand the cultural route, biochemical and nutritional composition of two ecotypes of fonio, a study was carried out in village of Tambananing located approximately 7 km from Sédhiou. The objective of studies was to determine nutritional composition of two ecotypes of fonio: the first called momo in short-cycle mandinka (75 - 90 days) and the other called medium-cycle dibong (90 - 110 days). For this, samples of two ecotypes were collected in an experimental field which was split into two equal parts, one sown with the momo ecotype and the other with the dibong ecotype. The nutritional composition (sugars, fats, proteins, minerals, ash, etc.) and the physicochemical properties (pH, humidity, water activity, color, etc.) of fonio’s were determined by appropriate physicochemical methods. The two ecotypes exhibited quite similar physicochemical properties. The levels of biochemical compounds were relatively close with protein contents of 7.05 ± 0.06 mg/100g for the momo ecotype and of 8.02 ± 0.04 mg/100g for the dibong ecotype, in carbohydrates (76.37 ± 1.2 mg/100g for momo and 78.7 ± 1.5 mg/100g for dibong) and in fat (2.92 ± 0.05 mg/100g for momo and 3.14 ± 0.004 mg/100g for dibong). Identical mineral element contents were found except for iron, an element for which the contents were 10.80 ± 0.008 mg/100g for the momo ecotype and 99.59 ± 0.005 mg/100g for the dibong ecotype. Thus, two ecotypes of fonio present a fairly interesting nutritional composition and their consumption deserves to be popularized and could contribute effectively to fight against the problems of malnutrition of certain vulnerable groups.

关键词： Biochemical Composition Ecotypes Fonio Casamance

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Comparative Study of the Protein Contents of Local and Imported Rice Consumed in Senegal

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Open Journal of Applied Sciences 2024年第2期14卷 561-571页

作者： amadou Bouye Seydi Nadina Zuleika Leite Serigne Omar Sarr Yérim Mbagnick diop amadou diop Animal Physiology Laboratory Department of Animal Biology Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal Analytical Chemistry and Bromatology Laboratory Faculty of Medicine Pharmacy and Odontology Cheikh Anta Diop University Dakar Senegal

Protein is essential for the growth and maintenance of the body. They play a crucial role in different biological processes. This study focuses on comparing the protein contents of local rice grown in the Senegal River valley and rice imported from Asia. The objective is to evaluate the importance of the protein nutritional value of local rice compared to imported rice. Protein contents were determined using the Kjeldahl method. The results of the protein assays show that local rice varieties such as Sahel 108 and Sahel 134 grown in the Thilène basins had protein percentages comparable to those of imported rice. The protein percentages were 15.19% ± 0.91% for the Sahel 108 variety and 16.62% ± 0.01% for the Sahel 134 variety compared to 15.8% ± 0.01% on average for imported rice. Thus from the point of view of protein content, local rice has a nutritional value identical to that of imported rice which it can validly replace. It is important in Senegal to encourage local production, which would make it possible to reduce imports on the one hand and to make quality rice available to the local Senegalese market on the other. Sahel varieties with high protein contents deserve large-scale development to meet the country’s protein needs.

关键词： Proteins Rice Nutritional Value Kjeldahl Method River Valley Senegal

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Identification of Antioxidant Additives in Food Products Sold in Dakar Markets

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Open Journal of Applied Sciences 2024年第1期14卷 51-62页

作者： Alé Kane Papa amadou diakhaté Sokhna Ndao Modou Dieng Mady Cisse amadou diop Laboratory of Biological Agronomic and Food Sciences and Complex Systems Modelling (LABAAM) University Gaston Berger (UGB) Saint-Louis Senegal UFR of Agronomic Sciences Aquaculture and Food Technology (UFR S2ATA) UGB Saint-Louis Senegal Analytical Chemistry and Bromatology Laboratory University Cheikh Anta Diop of Dakar Dakar Senegal Department of Chemical Engineering and Applied Biology University Cheikh Anta Diop of Dakar Dakar Senegal

The use of food additives in industrial production has the advantage of improving sensory properties, technological quality and extending the shelf life of foods. Among the most widely used additives are antioxidants, which prevent oxidation, browning and rancidity reactions in foods. However, the strong presence of these additives on the market is not without risks for human health, and should be controlled to guarantee food safety. Analysis of the risks associated with consumption of foods containing these additives requires, among other things, information on the frequency of use of these additives in various consumer products. The aim of this study is therefore to identify the antioxidants present in industrial food products distributed in Dakar. The methodology adopted consists of a qualitative analysis based on the identification of additives from food labels. Investigations were carried out in 9 stores, 4 superettes and 2 supermarkets located in different districts of Dakar. The results revealed the presence of 12 antioxidant additives, dominated by citric acid (53%) and ascorbic acid (29%). These studies have also highlighted the simultaneous use of several antioxidants in the same food product. Moreover, for some artificial antioxidants identified antioxydant such as BHA and BHT, health risks are associated with their consumption. The results of this study open up prospects for the development of information databases on food additives.

关键词： Additives Antioxidant Food Products Market Risk

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Sweetener and Flavor Enhancer Food Additives in Industrial Food Products Marketed in Dakar: Frequency and Diversity

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Open Journal of Applied Sciences 2024年第1期14卷 101-117页

作者： Alé Kane Alioune Sow Ndèye Adiara Ndiaye Coumba Gueye Sagna Papa amadou diakhaté Mady Cissé amadou diop Laboratoire des Sciences Biologiques Agronomiques Alimentaires et de Modélisation des Systèmes Complexes (LABAAM) Université Gaston Berger (UGB) Saint-Louis Senegal Département des Technologies Agroalimentaires|UFR des Sciences Agronomiques de l’Aquaculture et des Technologies Alimentaires (S2ATA) Saint-Louis Senegal Ecole Supérieure Polytechnique (ESP) Dakar Senegal Laboratoire de chimie analytique et bromatologie UCAD Dakar Senegal

Sweeteners and flavor enhancers are food additives widely used in industry, respectively, to add sweetness and flavor to foods. However, the presence of these substances is often criticized by consumers for their effects on health. What’s more, some scientific studies link these substances to certain pathologies. To guarantee food safety, competent authorities should have food standards based on risk analysis using consistent, reliable data. However, in developing countries, such data is often weak or non-existent. The aim of this study is therefore to carry out a pilot survey to establish the profile of sweeteners and flavour enhancers present in industrial food products marketed in Senegal. The methodology consisted of sampling various food products sold on the Senegalese market, based on analysis of labels containing information on ingredients, including additives. The investigation involved nine stores, one supermarket and 5 mini-markets in Dakar. The results showed the presence of 6 taste enhancers in food products, the most frequent being sodium L-monoglutamate (E621), inosinate (E631) and disodium guanylate (E627). Solid broths are the foodstuffs with the highest number of taste exhalters. As for sweeteners, 12 substances were identified, the most frequent being acesulfame potassium (E950), aspartame (E951), sucralose (E955) and saccharin (E954). Given the potential health risks associated with the consumption of these food additives, their control and monitoring on the market should be a priority for the competent authorities.

关键词： Exhalter Sugar Acesulfame Potassium Sodium Monoglutame Artificial Health Risk

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Phenotypic Detection of Enterobacterales Strains Susceptible of Producing OXA-48 Carbapenemase

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Advances in Microbiology 2024年第2期14卷 115-121页

作者： Abdoulaye Seck Abdou diop Babacar Ndiaye Assane Dieng Awa Ba amadou diop Chantal Mahou Douala-Djemba Thierno Abdoulaye diallo Cheikh Anta diop University of Dakar Dakar Senegal Medical Biology Laboratory Pasteur Institute of Dakar Dakar Senegal

Background: Nowadays, emergence of Carbapenemase-Producing Enterobacterales (CPE) throughout the world has become a public health problem, especially in countries with limited resources. In recent years, CPE of type OXA-48 (Ambler class D) have been identified in Dakar. The aim of this study was to evaluate the phenotypic detection of OXA-48 CPE using a temocillin disc (30 μg). Methodology: A retrospective study was carried out at Medical Biology Laboratory of Pasteur Institute in Dakar on Ertapenem-Resistant Enterobacterales (ERE) strains isolated from 2015 to 2017. These strains were then tested with a 30 μg temocillin disc. Any strain resistant to temocillin (inhibition diameter Results: Forty-one ERE isolated during the study period were tested, of which 34 (82.9%) were OXA-48 based on phenotypic detection using temocillin disc and confirmed by PCR (100%). OXA-48 CPE strains detected were composed of Klebsiella pneumoniae (n = 14;41.2%), Enterobacter cloacae (n = 8;23.5%), Escherichia coli (n = 7, 20.5%), Citrobacter freundii (n = 3;8.8%), Cronobacter sakazakii (n = 1;3%) and Morganella morganii (n = 1;3%). Conclusion: Temocillin resistance has a good positive predictive value for detecting OXA-48 CPE by phenotypic method, confirmed by PCR. Temocillin is therefore a good marker for detection of OXA-48 CPE except Hafnia alvei.

关键词： Ertapenem Temocillin Phenotypic Detection Carbapenemase-Producing Enterobacterales OXA-48

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Early Prosthetic Valve Endocarditis with Mycobacterium Tuberculosis after Mitral Valve Replacement: A Case Report

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World Journal of Cardiovascular Surgery 2024年第3期14卷 33-40页

作者： Papa Amath diagne Mory Camara Papa Ousmane Ba Momar Sokhna diop Moussa samba Abdou Lahad Mbengue Jean Claude Ndiogou Dione Myriam Bizrane Marième Soda Mbaye Moussa Seck diop Toudiani Malam Kaka Papa Salmane Ba Papa Adama Dieng amadou Gabriel Ciss Assane Ndiaye Cardiovascular and Thoracic Surgery Department FANN National University Hospital Dakar Senegal

Background: Tuberculous endocarditis is a rare but serious complication of heart valve replacement surgery. We report the case of a 24-year-old patient, who presented with tuberculous endocarditis after mechanical mitral valve replacement, with a favorable clinical course following anti-tuberculosis treatment. Case Presentation: We report a 24-year-old male patient, admitted to the cardiac surgery department of the Fann Hospital (Dakar, Senegal), for the management of severe mixed (rheumatic and endocarditic) mitral insufficiency with associated tricuspid insufficiency. He had a history of recurrent angina and polyarthralgia in childhood, was hospitalized several times for refractory global cardiac decompensation, and for a suspected infective endocarditis a month before his admission. On admission, the clinical examination revealed signs suggestive of mitral and tricuspid insufficiency. Transthoracic echocardiography revealed severe post-endocarditic mitral insufficiency with A3 amputation, highly mobile 15 mm vegetations on the free edge of the large valve, moderate tricuspid insufficiency, and severe pulmonary artery hypertension. Mechanical mitral valve replacement and tricuspid valve annuloplasty using autologous pericardial strip were performed via median sternotomy. After ten days, the patient presented with global cardiac decompensation associated with a clinico-biological infectious syndrome, and tans-oesophageal echography revealed an abscess at the sinotubular junction, communicating with the aorta. A thoraco-abdomino-pelvic CT scan was done, which revealed a bilateral alveolar-interstitial syndrome with mediastinal lymphadenopathy. Anti-tuberculosis treatment with RHZE was initiated for 06 months. The clinical course was favorable. Conclusion: Tuberculous endocarditis in prostheses is a serious complication of heart valve replacement surgery, which may evolve favorably under medical treatment.

关键词： Tuberculous Endocarditis Prosthetic Valve Endocarditis Mycobacterium Tuberculosis

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Results of the First 10 Cases of Coronary Bypass Surgery in Senegal

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World Journal of Cardiovascular Surgery 2024年第4期14卷 45-60页

作者： Papa Amath diagne Jean Claude Ndiogou Dione Papa Ousmane Ba Momar Sokhna diop El Hadji Boubacar Ba Momar Dioum Marième Soda Mbaye Moussa Seck diop Mory Camara Abdou Lahad Mbengue Abdou Aziz Thiaw Abdoul Khoudoss diallo Moussa Mareme samba dialtabé Ibrahima Guéssé Ba Anta Mbaye Sall Papa Salmaneba amadou Gabriel Ciss Department of Cardiovascular and Thoracic Surgery FANN National University Hospital Dakar Senegal

This is a review of the first 10 coronary artery bypass surgeries performed by the local team. The mean age was 62 years old [45 - 74]. The patients were predominantly male, with a M/F ratio of 4:1. Cardiovascular risk factors were mainly myocardial infarction (MI) (60%), hypertension (50%), obesity (40%) and diabetes (30%), with at least two risk factors per patient. Angina was the main symptom (80%). The average time from presentation to surgery was 8 months. The mean Euroscore 2 was 2.92 ± 1.65 [1.33 - 6.60]. Coronary angiography revealed an average of 2 lesions per patient, with 3-vessel involvement in 70% of cases: the Interventricular artery (IVA) (100%), the right coronary artery (90%) and the circumflex artery (70%). On echocardiography, the mean Left ventricular ejection fraction (LVEF) was 59% [33% - 76%]. All patients underwent median sternotomy with bypass grafting. The average duration of the cardiopulmonary bypass was 150 min [46 - 275 min];that of aortic clamping, 120 min [43 - 232 min]. The grafts used were internal thoracic artery (ITA) in 100% of cases (80% on the left and 20% on the right), and the great saphenous vein (GSV) in 60% of cases (50% on the left and 10 on the right). Double bypass was performed in 60% of cases, single bypass in 30% and triple bypass in 10%. The bypasses were performed on the IVA (100%), the middle lateral of the circumflex (30%) and the bisector (20%). The average time to extubation was 11 hours and the length of stay in the intensive care unit was 7 days [03 - 17 days]. One patient had a reoperation on Day 0 post-op. The average hospital stay was 13 days [06 - 27 days]. Complications occurred in nine of the patients (90%), with a predominance of infectious and neurological complications. Overall operative mortality was 3%, all in intensive care.

关键词： Coronary Bypass Surgery Coronary Lesions Cardiac Surgery Senegal

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A Comparative Study of Mandibular Fractures in Senegal: Children vs. Adults

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Open Journal of Stomatology 2024年第2期14卷 72-76页

作者： Paul niang Department of Oral Surgery Cheikh Anta Diop University Dakar Senegal

Introduction: The commonest maxillofacial fractures involve the mandible. Age can be considered among influential factors. Aim of the Study: To compare mandibular fractures between children and adults from the beginning up to the treatment in Senegal. Patients and Method: A three-year retrospective study was conducted in a university hospital. The medical records of patients admitted for maxillofacial injuries were reviewed. Patient and injury-related variables including age, gender, etiology, average consultation delay, anatomic location of fracture and treatment were compared up to age of 15 and beyond that. Results: Considering 272 casualties, maxillofacial fractures were less frequent among children than adults (36.7% and 59.7%) and were mainly mandibular (90.1% and 91.4%). Male predilection (sex ratio of 2.4 and 4.9) was twice (2) as pronounced from the age of 16. The average consultation delay was two (2) times shorter for children. Road traffic accidents which predominated among children (33.9%) had comparable frequency (32.3%) although they were outnumbered by assault (37.6%) among adults. Fractures occurred mainly on the corpus (90.1% and 90.4%), particularly on parasymphysis (40.1%) up to the age of 15, whereas angle fractures increased (8.5% to 19.6%) and joint damage decreased afterwards. Intra-oral orthopedic procedures (91.2% and 92.6%) in which mandibular retention splints were more common (37.3%) up to the age of 15 then arch ligatures (49%) were then widely favored. Conclusion: Differences relating to the distribution of causes but also to the anatomic location on the corpus and to the choice of intra-oral orthopedic procedures within overall similarities between children and adults regarding the male predilection, the frequency of road traffic accidents, the mandibular injuries, but also the school therapeutic attitude consisting of favoring the orthopedic option.

关键词： Fracture Mandible Child Adult

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