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Contribution to the Petrographic and Geochemical Study of the Karthala Massif Lavas in the Bangaani Area, Grande Comore, Indian Ocean

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Open Journal of Geology 2023年第5期13卷 312-336页

作者： Samba Cissokho Adinane Ahamada abdoulaye ndiaye Diomaye Yatte Papa Malick Ngom Department of Geology Faculty of Sciences and Technics Cheikh Anta Diop University of Dakar (UCAD) Dakar Senegal

The Bangaani area is located in the northwestern part of the Karthala Massif on the island of Grande Comore, about 10 km from the capital Moroni. It is essentially constituted of basalt plateaus outcropping in the form of pahoehoe and aa lava flows or in the form of massive vesicular or non vesicular basalt flows. Petrographic analysis of the massive basalts studied shows a porphyritic microlitic texture marked by the successive crystallization of olivines, opaque minerals, clinopyroxenes and plagioclases in a relatively abundant mesostasis. This crystallization sequence is typical of a high pressure environment corresponding to primary alkaline magmas. The geochemical study of major and trace elements shows that the basalts studied are under saturated in silica (47.24%) but rich in alkali (2.26%) and titanium (2.66%). They correspond to intraplate alkaline basalts of type oceanic island basalts (OIB) and present a primary character marked by relatively high contents of magnesium (6.69%), chromium (151.23 ppm), nickel (107.53 ppm) and scandium (27.15 ppm). The REE and multi-element diagrams confirm that the Karthala basalts are alkaline basalts of type OIB by their enrichment in LILE and their depleted character in HREE and HFSE. In terms of isotopic ratios, they are comparable to HIMU and EM I.

关键词： Bangaani Karthala Comore Alkaline Basalts OIB

Impact of Multifidus Muscle Morphometry on the Clinical Evolution of Chronic Low Back Pain

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Forensic Medicine and Anatomy Research 2023年第1期11卷 1-13页

作者： Ndèye Bigué Mar Aïnina ndiaye abdoulaye Ndoye Diop Gor Side Diagne Babacar Diao Souleymane Diao Racky Wade Issa Dior Seck Karim Yacouba Garba Sokhna Astou Gawane Thiam Mamadou ndiaye Magaye Gaye Magatte Gaye Sakho Jean Marc Ndiaga Ndoye Mamadou Diop Assane ndiaye abdoulaye ndiaye Anatomy Laboratory/Joint Research and Diagnosis Unit Iba Der THIAM University of Thiès Thiès Senegal Laboratory and Organogen of Anatomy Cheikh Anta Diop University of Dakar Dakar Senegal Department of Radiology and Medical Imaging Gaston Berger University of Saint Louis Dakar Senegal Neurology Department Fann Hospital in Dakar Dakar Senegal Urology Service Ouakam Military Hospital Dakar Senegal Orthopedic Traumatology Service Idrissa Pouye Hospital of Grand Yoff-Dakar Dakar Senegal Neurosurgery Department Idrissa Pouye Hospital of Grand Yoff Dakar Senegal Anatomy Laboratory Assane Seck University of Ziguinchor Ziguinchor Senegal

Purpose: The multifidus muscle is an important extensor muscle of the lumbar spine. It plays a major role in the stability and realization of axial rotation movements of the thoraco-lumbar spine. Its atrophy by fatty degeneration would be at the origin of the occurrence of chronic low back pain which constitutes a public health problem in Senegal. Taking into account its anatomy is essential for the etiopathogenic analysis and the treatment of low back pain. The purpose of our work was to investigate the impact of multifidus muscle morphometry on the anatomy-clinical evolution of low back pain. Material and method: this was a prospective study over a period of 30 months from November 2019 to May 2022. It involved 100 patients seen in the neurology department of Fann Hospital for chronic low back pain and who had already had a scanner falling within the criteria for low back pain. We used 3D Slicer, SPSS 20, Excel 2016 software to model and analyze the morphometric data of the multifidus muscle after physiotherapy and control lumbar scans. Results: The sex ratio was 2.23. The average age of the patients was 45 ± 7 years. On the initial CT scan, according to the Hadar classification, we noted a predominance of grade 2 with 56% in L5/S1, followed by grade 1 with 32% and grade 3 with 14%. In L4/L5, the majority of patients, 67%, had grade 1. A conflicting circumferential disc bulge with the roots predominating in L5/S1 was present in 94% of men (p-value = 0.02). Before physiotherapy, the average volume of the multifidus was 193 mm3 ± 39, after physiotherapy it was 203 mm3 ± 42 with a progression rate of 5.2%. Clinically, severe type pain had regressed from 86% before physiotherapy to 0% after physiotherapy (p-value = 0.03). Conclusion: Taking into account the morphometry of the multifidus is an essential element in the management of chronic low back pain.

关键词： Morphometry Multifidus Low Back Pain Physiotherapy

Breast Morphometry in Senegalese Women:Study on a Sample of 118 Subjects

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Advances in Breast Cancer Research 2020年第2期9卷 13-20页

作者： Ndeye Bigue Mar Assane ndiaye Ainina ndiaye Karim Yacouba Garba Magaye Gaye Sokhna Astou Gawane Thiam Issa Dior Seck Racky Wade Jean Marc Ndiaga Ndoye Mamadou Diop abdoulaye ndiaye Laboratory of Anatomy and Organogenesis Faculty of MedicinePharmacy and DentistryCheikh Anta Diop UniversityDakarSenegal Training and Research Unit in Health Sciences Assane Seck University of ZiguinchorZiguinchorSenegal

Nowadays, women are more and more resorting to breast surgery for the purposes of isolated esthetics or within the framework of a mammectomy for tumor with its cohort of psychological problems post mutilation often requiring reconstruction. In context of breast cancer increase in Senegal, we have carried out breast morphology in female subjects of the Sahelian type in order to contribute to the development of a morphological database for reconstruction, reduction or breast augmentation. It was a prospective study on 118 female subjects received at Cancer Institute for screening. They were divided into two groups (age ≤ 40 years and age?> 40 years). Subjects’?morphometric variables were collected in anatomical position and correlated with age, parity, obesity and genital activity using. Fifty six subjects (47.5%) were over 40 years of age. There were 40 multiparous (33.9%). Fifteen subjects (12.7%) and six subjects (5%) were obese and morbidly obese, respectively. Subjects in genital activity were 34 (29%). The overall average size of the areola was 4.3 ± 1.5 cm. The nipple was low located with an average of 7.2 ± 3.5 cm. The diameters mentioned above increased significantly with age and body mass index, for p-values ?0.05, with the exception of the vertical diameter. Breast diameters were greater in postmenopausal women. Morphometry of Sahelian-type women’s breast is strongly influenced by socio-demographic data, hence the need to take it into account during reconstruction, reduction or breast augmentation surgeries in Senegal.

关键词： Breasts Morphometry Surgery Sahelian Woman

The Configuration of the Femoral Arterial Bifurcation’s Influence on Its Atherogenesis

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Forensic Medicine and Anatomy Research 2020年第2期8卷 45-53页

作者： Magaye Gaye Papa Adama Dieng Ainina ndiaye Racky Wade Sidy Diop Ndeye Fatou Sow Papa Amath Diagne Souleymane Diatta Salmane Ba Mourad Boufi Assane ndiaye Amadou Gabriel Ciss abdoulaye ndiaye Laboratory of Anatomy and Organogenesis-FMPO-UCAD Dakar Senegal Thoracic and Cardiovascular Surgery Department-Fann CHNU Dakar Senegal Vascular Surgery Department North Hospital of Marseille Marseille France Laboratory of Anatomy and Organogenesis-UAS Ziguinchor Ziguinchor Senegal

Several theories point to the influence of the geometry of femoral arterial bifurcation in the formation and evolution of atherosclerosis plaques at the level of common, superficial and deep femoral arteries. The objective of this study is to correlate the degrees of calcifications of the femoral tripod with different morphological parameters, namely conicity, tortuosity, proximal and distal diameters of the arteries and angles between the common femoral artery (CFA) and the superficial femoral artery (SFA) and the profound femoral artery (PFA) and the superficial femoral artery. The results showed that only the tortuosity of the common femoral artery influences the formation of atherosclerosis plaque. These results allow us to predict the degree of calcification of the femoral tripod based on the tortuosity of the common femoral artery.

关键词： Tortuosity Calcification Atherosclerosis Femoral Arterial Bifurcation

Therapeutic Aspects of Chronic Bone Infections and Management Challenges

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Open Journal of Orthopedics 2014年第2期4卷 21-26页

作者： Charles Diémé Lamine Sarr Alioune Badara Guèye Ndeye Fatou Coulibaly André Sané abdoulaye ndiaye Seydina Sèye Department of Orthopaedic and Trauma Surgery Aristide Le Dantec Teaching Hospital Dakar Sénégal Department of Orthopaedic and Trauma Surgery Aristide Le Dantec Teaching Hospital Dakar Sénégal.

This study aims to investigate various aspects of the treatment of chronic bone infections and the challenges in their management. The characterization of treatment of 73 patients with chronic bone infection was reported. The four management challenges including consultation delay, immune depression, extreme variety of clinical manifestations and non-use of CT or MRI were discussed in this study. We conducted a retrospective study at Aristide Le Dantec Hospital on 90 cases of chronic bone infection in 73 patients. The mean duration of symptoms before consultation was 36 months. More than half of the patients had a productive fistula at the first consultation. Sickle cell anemia was found in 6 patients. Multiple lesions were found in 10 patients;and long bones were affected in 90% of cases. The bacterial culture was positive in 93.15%. Staphylococcus aureus was the most isolated germ (68.35%). Seventy-two out of seventy-three patients were operated on. The procedure depended on anatomical and radiological lesions. Surgical treatment was associated with antibiotherapy which was firstly probabilistic and secondarily adapted to the results of bacterial culture. A favorable trend was found in 41 patients (56.16%). 32 cases of adverse effects were noted (43.83%), and 27 patients had recurrence after a favorable outcome. Several complications and sequelae were observed demonstrating the tenacity of these chronic infections.

关键词： Chronic Bone Infection Management Challenges

Incidence of Sickle Cell Disease and Other Hemoglobinopathies in Burkina Faso: Results of a Five-Year Systematic Neonatal Screening (2015-2019) in Four Urban Hospitals

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Open Journal of Blood Diseases 2022年第4期12卷 87-97页

作者： Salam Sawadogo Koumpingnin Nebie Donatien Kima Hélène Traore Savadogo Jean De Dieu Sanou Dieudonné Ouedraogo Paul Ouedraogo Hyacinthe Zamane abdoulaye ndiaye Eléonore Kafando University Joseph Ki-Zerbo Ouagadougou Burkina Faso Hematology Intervention Group Ouagadougou Burkina Faso Sanou Souro Teaching Hospital Bobo-Dioulasso Burkina Faso Schiphra Protestant Hospital Ouagadougou Burkina Faso Saint-Camille Hospital of Ouagadougou Ouagadougou Burkina Faso Yalgado Ouedraogo Teaching Hospital Ouagadougou Burkina Faso

Hemoglobinopathies, mainly Sickle cell disease (SCD), are the most common monogenic disorders in Africa. In Burkina Faso, data on these diseases are scarce, mainly hospital-based in Ouagadougou and its surroundings. In order to assess the incidence and allelic frequencies of the main hemoglobinopathies in newborns in Burkina Faso, we conducted a cross-sectional study from 2015 to 2019 in four hospitals. The study included babies of both sexes, regardless of ethnic group and parents’ hemoglobin status. It was a newborn screening and hemoglobin variants were detected using isoelectric focusing on cord blood samples and confirmed using hemoglobin electrophoresis by high-performance liquid chromatography. The proportions and cumulative incidences of the different hemoglobinopathies were computed. Hardy-Weinberg equilibrium law was applied to calculate genotypic and allelic frequencies. The significant level was p < 0.05. Out of 11,337 newborns included, 47.8% were males and 60.2% were from Bobo-Dioulasso. Abnormal hemoglobin was found in 27.1%, representing a cumulative incidence of 1:4 newborns. The incidence of SCD was 1.9% (1:53 newborns) with 27.9% of homozygous SS. Homozygous CC and compound heterozygous Cβ-Thalassemia accounted for 1.1%. SCD cases were 1.51 times higher in Bobo-Dioulasso (OR = 1.51;95% CI [1.09 - 2.10]: p = 0.013). The observed genotype frequencies were significantly different from the expected ones (p 0.001). The βS and βC alleles represented 5.1 and 9.9%, respectively. This study showed a high incidence of hemoglobinopathies. Such results raise the question of control strategies for these hemoglobinopathies in our country.

关键词： Abnormal Hemoglobin β-Globin Gene Newborn Screening Isoelectric Focusing

Primary Tumors of the Upper Urinary Tract: Report of 4 Cases

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Open Journal of Urology 2014年第9期4卷 115-120页

作者： Lamine Niang Charles Kouka Yoro Diallo Médina Ndoye Racine Kane Mohamed Jalloh abdoulaye ndiaye Issa Labou Jeanne Diaw Sérigne M. Gueye General Hospital of Grand Yoff Dakar University Dakar Senegal Health UFR Thies Senegal

Primary tumors of the upper urinary tract are rarely reported in the literature. We thus report here four cases of primary tumors of the upper urinary tract that were difficult to diagnose, in three women and one man. Preoperative diagnosis was established in only two cases requiring a nephro-ureterectomy. The other two cases were surprisingly diagnosed during anatomopatho- logical examination. Preoperative diagnosis was a pyonephrosis in one case and a renal failure resulting from stenosis of the pelvic ureter in the other. Despite modern methods, primary tumors of the upper urinary tract remain difficult to diagnose.

关键词： Upper Urinary Tract Primary Tumors Nephro-Ureterectomy

Contribution to the Petrographic and Geochemical Study of the Karthala Massif Lavas in the Bangaani Area, Grande Comore, Indian Ocean

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Characterization of Wastewater in School Environments for an Ecological Treatment Solution: A Case Study of Ndiebene Gandiol 1 School

Open Journal of Geology 2023年第5期

作者： Samba Cissokho Adinane Ahamada abdoulaye ndiaye Diomaye Yatte Papa Malick Ngom

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Journal of Water Resource and Protection 2024年第1期16卷 27-40页

作者： Falilou Coundoul Abdou Khafor ndiaye abdoulaye Deme Polytechnic Institute of Saint-Louis Gaston Berger University Saint-Louis Sénégal Applied Sciences and Technologies Training and Research Unit Gaston Berger University Saint-Louis Sénégal

The study conducted at Ndiebene Gandiol 1 school in Senegal has unveiled serious environmental and public health challenges. The wastewater analysis revealed high levels of Biochemical Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), and fecal coliforms, signaling potential risks to the well-being of students and staff. This situation mirrors a wider issue in rural educational settings, where inadequate sanitation persists. Intensive wastewater treatment options are known for their effectiveness against high pollutant loads but are resource-intensive in both energy and cost. Conversely, extensive treatment systems, while requiring more land, provide a sustainable alternative by harnessing natural processes for pollutant removal. The research suggests a hybrid treatment approach could serve the school’s needs, balancing the robust capabilities of intensive methods with the ecological benefits of extensive systems. Such a solution would need to be tailored to the specific environmental, financial, and logistical context of the school, based on comprehensive feasibility studies and stakeholder engagement. This study’s findings underscore the urgency of addressing sanitation in schools, as it is intrinsically linked to the health and academic success of students. Quick, effective, and long-term strategies are vital to secure a healthier and more prosperous future for the youth. With proper implementation, the school can transform its sanitation facilities, setting a precedent for rural educational institutions in Senegal and similar contexts globally.

关键词： Wastewater Characterization Ecological Treatment School Sanitation Phytoremediation Rural Infrastructure Environmental Health