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Epidemiological Approach to Understand Rheumatic Heart Valve Disease: Case of Thoracic Cardiovascular Clinic of Fann Hospital (Dakar)

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World Journal of Cardiovascular Diseases 2020年第10期10卷 750-760页

作者： Marie Parsine Sall fatimata mbaye Mbacké Sembéne Amadou Gabriel Ciss Département de Biologie Animale Faculté des Sciences et Techniques Université Cheikh Anta Diop Dakar Sénégal Institut de Recherche Pour le Développement Campus Bel-Air Université Cheikh Anta Diop Dakar Sénégal Faculté de Médecine de Pharmacie et D’odontologie Université Cheikh Anta Diop Dakar Sénégal

Objective: Rheumatic heart disease is the major cause of heart valve disease in developing countries. In Senegal, cardiac pathology is dominated by rheumatic pathology whose hospital prevalence was estimated at 0.15% [1]. Epidemiological data on rheumatic heart valve disease (RHVD) are unfortunately imprecise due to the lack of good quality data collection in a large number of countries, especially in sub-Saharan areas and in Central Asia. The objective of this epidemiological study is to collect data about rheumatic heart valve disease in our clinic which is the only surgical center of Senegal. Patients and Methods: Our study conducted between 2014 and 2017 involved a population of one hundred and eighty-three patients with complete medical records, all followed at the Thoracic and Cardiovascular Surgery Clinic at Fann Hospital for rheumatic valve disease. This population was the subject of an epidemiological survey based on a questionnaire covering clinical parameters as consanguinity, clinical signs, diagnosis and surgical intervention. Results: Our work is an epidemiological study involving one hundred and eighty-three (183) patients with various types of rheumatic valve disease, followed at the Thoracic and Cardiovascular Surgery Clinic at Fann Hospital, and who responded to a questionnaire about clinical aspects of this disease. Our results showed 5.46% of family cases, of which 2.18% came from consanguineous marriages. Mean age at onset of clinical signs was 14 ± 9 years with 14.20% before 6 years of age, 65.91% between

关键词： Rheumatic Valves Epidemiological Diagnosis Surgery

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Ovarian Tumors in Senegalese Women: Impact of D-Loop Mutations between Healthy and Cancerous Tissues

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Open Journal of Genetics 2024年第2期14卷 37-46页

作者： Rouguiyatou Ka fatimata mbaye Bineta Kénéme Mbacké Sembène Genomics Laboratory Department of Animal Biology Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal

In Senegal in particular, ovarian cancer, which is one of the most common gynecological cancers, accounts for 2.8% of deaths. The most important risk factor is genetic, with 10% of cases occurring in a context of genetic predisposition. The sequencing of the human genome, which has led to the discovery of millions of sequence variations, makes it possible to study variations within sequences. These variations are limited to Single Nucleotide Polymorphisms (SNPs) and this common form of polymorphism occurs approximately every 1000 bases in the human genome and 1.8 million SNPs are currently listed according to [1]. The aim of this study is to gain a better understanding of the impact of mutations in the D-loop region of mtDNA on ovarian cancer in Senegalese women. This study involved searching for mutations in our study population after DNA extraction and sequencing. Mutations were found after a comparison of our sequences with the Cambridge reference sequence (NC_012920). The mutations found in the DNA studied extend from position 7 to position 16568 and most of these mutations are located in the hypervariate zones (HV1 and HV2). Heteroplasmy with three mutant alleles was also found in certain variants. Common mutations were found in both healthy and cancerous tissues, with almost identical frequencies in both types of tissue. This enabled us to understand the spread of tumor cells throughout the ovary.

关键词： Ovarian Cancer Mutations D-Loop Heteroplasmy

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Evaluation of Malnutrition in Infants Aged 0 - 59 Months in the Suburbs of Dakar

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Health 2023年第4期15卷 349-366页

作者： Issa Jessika fatimata mbaye Abdallah Diallo Fatou Ly Pape Mbacké Sembène Genomics Laboratory Department of Animal Biology Faculty of Science and Technology Cheikh Anta Diop University of Dakar Dakar Senegal Pediatric Social Institute of Pikine (IPS) Dakar Senegal National Hospital Center of Pikine (CHN-Pikine) Dakar Senegal

Introduction: Child malnutrition is a major public health concern worldwide, particularly in low- and middle-income countries. The latest report from Senegal’s Continuous Demographic and Health Survey revealed that 18% of children in Senegal were stunted (chronic malnutrition), 8% were wasted (acute malnutrition) and 14% were underweight. Thus, this study aimed to assess the characteristics associated with malnutrition in children according to their nutritional status. Methods: This descriptive transverse study was conducted at the Pediatric Social Institute of Pikine/Guediawaye and the National Hospital Center of Pikine, in Senegal between October and December 2019. A total of 94 children were recruited, with the consent of their legal tutors. Descriptive and multivariate analyses of the factors associated with malnutrition were performed. The z-scores for the indices of nutrition were determined with WHO Anthro® software version 3.2.2. All the data analyses were performed using R software version 4.2.2. Result: From the 94 children recruited, 51.06% were female, with a sex ratio (male/female) of 0.96. Acute malnutrition was recorded in 62.77% of cases, chronic malnutrition in41.49%, and underweight in 71.27%. Linear regression analysis showed that many factors, such as the female gender [OR = 1.82 CI (1.02 - 3.3), P-value = 0.04], consanguinity [OR = 2.84 CI (1.14 - 7.65), P-value = 0.03], low birth weight [OR = 4.83 CI (2.15 - 12.89), P-value = 0.0004], were associated with acute malnutrition. Low birth weight (<2.5 kg) [OR = 10.66 CI (3.82 - 44.39) P-value < 0.0001], non-exclusive breastfeeding [OR = 3 CI (1.40 - 7.13)] P-value = 0.007], dietary diversification before six months [OR = 2.04 CI (1.23 - 3.51), P-value = 0.007] and others factors were associated with underweight. The most frequently recorded clinical signs are weight loss (30.85%), fever (23.40%), diarrhea (34.04%), and anemia (70.21%). Conclusion: Problems associated with malnutrition ar

关键词： Malnutrition Child Anthropometry Anemia Nutritional Status

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Phylogenetic Relationship and Molecular Divergence Dating Using SRY Gene Polymorphism about Four Ladoum Sheep Lineages in Senegal

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Open Journal of Animal Sciences 2023年第2期13卷 179-198页

作者： Pape Madiop Sembène fatimata mbaye Mama Racky Ndiaye Mbacké Sembène Genomic Laboratory Department of Animal Biology Cheikh Anta Diop University Dakar Senegal

Animal genetic resources are playing a vital role in livestock production and are essential to food security. The present study aims to contribute to a better understanding genetic local sheep breeds and to elucidate the phylogenetic relationships through the evolution of the SRY gene in four different lineages of Ladoum sheep raised in Senegal. After a brief analysis of genetic diversity, the phylogenetic relationships and molecular dating were inferred through haplotype networks and four phylogenetic reconstruction methods. The different haplotype networks are constructed with NETWORK ver. 5.***.0.0 using the Median-Joining method. Phylogenetic trees were reconstructed using neighbor-joining, maximum parsimony, maximum likelihood and Bayesian inference. The robustness of the nodes in phylogenetic trees of the three first methods was assessed by 1000 bootstraps. For Bayesian inference, the posterior probability distribution of the trees was estimated by 4 MCMC chains. 5,000,000 generations were performed for each of the chains by sampling the different parameters every 1000 generations. Results show a low polymorphism. Haplotypic diversity is much higher than the average nucleotide divergence between all pairs of haplotypes. The majority and central haplotype indicates a close relationship between “Batling” and “Tyson” individuals. “Birahim” lineage is very distinct from the rest. Phylogenetic trees confirm two genetically separate clades between “Birahim” and the other lineages. The period of divergence between “Birahim” lineage versus the common ancestor of the other three lineages was 2504 years ago. The polyphyly revealed in “Birahim” lindicates that this lineage does not contain the common ancestor of all individuals who compose it. It could therefore be derived from two or more sheep breeds with a common ancestor, Ovis aries. The monophyletic clade appears to be a group including a common ancestor and all of its genetic descendants. This group, bringing togethe

关键词： Genetic Diversity Phylogenetic Relationship Molecular Dating SRY Gene Sheeps Ladoum Senegal

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Bat 26 Microsatellite Instability in Oral Cavity Cancers in Senegal

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Journal of Cancer Therapy 2023年第1期14卷 25-37页

作者： Mame Diarra Samb fatimata mbaye Mouhamadou Makhtar Ndiaye Silly Toure Mbacke Sembene Genomics Laboratory Department of Animal Biology Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal Department of Maxillofacial Surgery and Stomatology Faculty of Medicine Pharmacy and Stomatology Cheikh Anta Diop University Dakar Senegal

Oral cavity cancers are part of head and neck cancers. They have become frequent in the world in general and Senegal in particular. This study evaluates microsatellite instability tumors in oral cavity cancers in Senegal. Forty cancerous tissues, 20 healthy tissues, and 12 blood tissues were included in this study. These tissues were collected from each patient during the biopsy after obtaining consent. DNA extraction, Polymerase Chain Reaction (PCR) and sequencing were carried out to obtain sequences. Mutation surveyor, Bioedit and Dnasp software were used to perform our analyses. High instability was found in 57.5% of patients with cancer. Moreover, 90% of the patients had the same motif on healthy and cancerous tissue. Furthermore, 26.12%, 20.72%, and 11.71% polymorphic sites were found in cancerous, healthy and blood tissue respectively. Thus, a similarity between cancerous and healthy tissues seems to exist. This implies that instability of the Bat 26 microsatellite could occur early in the occurrence of oral cavity cancers.

关键词： Cancer Oral Cavity Microsatellite Instability Bat 26 Senegal

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Risk Factors and Complications in 947 Tuberculosis Patients Hospitalized in the Pulmonology Department of Fann Chnu from 2017 to 2019

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Journal of Tuberculosis Research 2022年第4期10卷 171-186页

作者： Maïmouna Fafa Cisse Emmanuella Mahugnon Tognimassou Samba Niang fatimata Binetou Rassoule mbaye Khady Thiam Yacine Dia Kane Nafissatou Oumar Toure Service de pneumologie CHNU de Fann Université Cheikh Anta Diop (UCAD) Dakar Sénégal UFR Santé de Saint Louis Saint Louis Sénégal

Introduction: Despite current progress, tuberculosis remains a major public health problem, given its still high incidence, prevalence, and mortality, particularly in sub-Saharan African countries, including Senegal. This risk is higher for immunocompromised people. Complications and comorbidities can also affect the course of the disease, affecting the prognosis. It is in this context that this study was undertaken with the objective of determining the risk factors and complications in patients hospitalized for tuberculosis. Materials and Methods: This was a retrospective and descriptive study carried out in 2021, from records of patients hospitalized for tuberculosis from January 1, 2017, to December 31, 2019, at the Pulmonology Department of Fann. Inclusion criteria were all patients on TB treatment after diagnosis of tuberculosis has been confirmed bacteriologically or clinically according to the World Health Organization’s TB case definition. Multidrug-resistant TB was excluded. Results: Out of 4516 hospitalized patients, 20.96% of patients were tuberculosis patients. The sex ratio was 2.18. 4/5 of the patients were between 18 and 39 years old. The main contributing factors of TB found were undernutrition (93.13%), active smoking (36.75%) and diabetes (35.97%). The time between hospitalization and onset of symptoms was greater than 2 months in 60.53% of cases. A complication was noted in 89.10% of patients, particularly bacterial/viral bronchopulmonary co-infection (31.15%). The trend was favorable in 88.49% of cases. It resulted in death in 10.98% of cases. Conclusion: Most integrated-care nutritional support programs focus on HIV. Undernutrition appears to play a much more important role than HIV in the extent of TB in poor countries. It creates a vicious circle with tuberculosis, one of the components of which is immunosuppression and the increased frequency of complications such as bacterial/viral community/nosocomial co-infection, the actual incidence of w

关键词： Undernutrition Tuberculosis Bacterial Co-Infection

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Impact of Education on the Quality of Life of Asthmatics:Evaluative Study of 100 Cases in Pneumophtisiology Department of the Fann National University Hospital Center(FNUHC),Senegal

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Occupational Diseases and Environmental Medicine 2019年第1期7卷 1-12页

作者： Cheikh Tacko Diop Khady Thiam fatimata Binetou Rassoule mbaye Maimouna Fafa Cisse El Hadj Mamadou Ndiaye Samba Niang Thibaut Houssou Yacine Dia Kane Ansoumana Diatta Nafissatou Oumar Toure Direction of FNUHC DakarSenegal Pneumophtisiology Department FNUHCDakarSenegal Pneumology Department Regional Hospital Center of Saint-LouisSaint-LouisSenegal Department of Pneumology Peace HospitalZiguinchorSenegal

Introduction: Therapeutic patient education is a continuous, integrated, patient-centered process. A study was conducted in the Asthma School in the pneumophtisiology department of Senegal. Overall goal was to determine the influence of therapeutic education on the quality of life of asthmatics. Method: Transverse study, descriptive and evaluative therapeutic education provided in the school of asthma on quality of life for asthma patients. Data were analyzed through IBM SPSS (Statistical Package for Social Science) version 20. Results: 100 asthmatic patients were included with a sex ratio of 0.37. The average age of the patients was 36.76 years old. The majority (81.3%) (n = 39) being new participants. The average scores for symptoms, exposure to stimuli, emotions and limiting activities stay higher for adherent patients as well as the score overall quality of life. Conclusion: The school of asthma, associated with the therapeutic management, can improve the control of the disease and the quality of life of the patient.

关键词： School of Asthma Chronic Disease Patient Cooperation Non-Medicated Treatment of Asthma

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Risk Factors for COVID-19 Related Death during the First Three Waves of the Pandemic in an Epidemic Treatment Center at Dakar, Senegal

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Advances in Infectious Diseases 2023年第2期13卷 117-131页

作者： Moustapha Diop Papa Samba Ba Viviane Marie Pierre Cisse Ndèye Aissatou Lakhe Betty Fall Moustapha Lo Ndong Essomba Bruce Wembulua fatimata Wone Becaye Fall Khardiata Diallo-mbaye Daye Ka Louise Fortes Ousmane Faye Ndongo Dia Khalifa Ababacar Wade Abdou Rajack Ndiaye Amadou Alpha Sall Moussa Seydi Mame Thierno Dieng Epidemic Treatment Center Dakar Principal Hospital Dakar Senegal Infectious and Tropical Diseases Department FANN Teaching Hospital Dakar Senegal Psychiatry Department Dakar Principal Hospital Dakar Senegal Internal Medicine Department Deido District Hospital Douala Cameroon Dalal Jamm Hospital Dakar Senegal Federation of Laboratories Dakar Principal Hospital Dakar Senegal Pasteur Institute of Dakar Dakar Senegal Anesthesia-Resuscitation Department Dakar Principal Hospital Dakar Senegal Dakar Principal Hospital Dakar Senegal

Introduction-Objective: COVID-19 is a highly transmissible but often mild viral infection. However, some patients can present severe COVID-19 and subsequently die. The aim of the present study was to assess the risk factors for COVID-19 related death during the first three waves of the disease at the Epidemic Treatment Center (ETC) of Dakar Principal Hospital (DPH). Method: We conducted a descriptive and analytical perspective survival study from April 4, 2020 to September 25, 2021, including adult patients with COVID-19, hospitalized at the ETC of DPH. Log Rank test and multivariate Cox model were performed to identify risk factors for death. Results: We included 556 COVID-19 patients with mean age of 57 ± 17 years and a male-to-female ratio of 1.26. The number of deaths during one month of follow-up was 41, representing a cumulative risk of 7.4%. The log Rank test showed that being from the third wave (p = 0.0056), advanced age (p = 0.00098), presence of at least one comorbidity (p = 0.034), High blood pressure (p = 0.024), d-dimer level ≥ 1000 IU/L (p Conclusion: Our study showed that elderly and third-wave of COVID-19 patients were more at risk to die. Knowledge of risk factors for COVID-19 related death could improve the prognosis of these patients.

关键词： COVID-19 Waves Death Risk Factors Dakar

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