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Open Journal of Gastroenterology 2024年第5期14卷 192-201页

作者： Mamadou Diakité kouassi olivier claver koffi Amadou Koné Akoun Fabrice Aké Oury Diallo Ahmadou Stellart Jean M. Brou Anassi Jean-Baptiste Okon Department of Medicine and Hepato-Gastroenterology Teaching Hospital of Bouak&#233 Bouak&#233 C&#244te d&#8217Ivoire Faculty of Medical Sciences Alassane Ouattara University Bouak&#233 C&#244te d&#8217Ivoire

Background and Objectives: The indication for treatment in HBsAg-positive patients with low viral load and normal transaminases requires an assessment of fibrosis. In resource-limited settings, free hepatic fibrosis evaluation tests can aid in therapeutic decision-making. Our study aims to demonstrate the utility of assessing hepatic fibrosis using non-invasive markers (APRI and FIB-4) in patients with chronic B viral hepatitis without cytolytic activity and low viral replication in our context. Patients and Methods: This is a retrospective cross-sectional study conducted between January 2018 and December 2021 at the University Hospital Center of Bouaké. Included were all patients aged ≥18 with normal transaminases (Results: Our study included 241 patients, with a mean age of 36.19 years (±10.52 years) and a male predominance of 52%. The mean FibroScan® value was 6.44 ± 2.3 kPa, and 68 patients (28.22%) had fibrosis >7 kPa. To exclude significant fibrosis (FS Conclusion: A significant proportion of HBV-infected patients with normal ALT and low viral load have active liver disease. Both FIB-4 and APRI biological scores are useful in identifying individuals without significant fibrosis with a good negative predictive value (>50%).

关键词： HBV Infection APRI FIB-4 Impulse Elastography BouakéUniversity Hospital

Interest of Non-Invasive Markers (APRI, FIB-4) for Assessing Hepatic Fibrosis in Patients with Chronic Viral Hepatitis B without Cytolysis and with Low Viral Replication

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Prevalence and Factors Associated with Intestinal Metaplasia in Chronic Helicobacter pylori Gastritis in a Country with High Endemicity: Ivory Coast Case

Open Journal of Gastroenterology（肠胃病学期刊） 2024年第5期 192页

作者： Mamadou Diakité kouassi olivier claver koffi Amadou Koné Akoun Fabrice Aké Oury Diallo Ahmadou Stellart Jean M. Brou Anassi Jean-Baptiste Okon

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Open Journal of Gastroenterology 2023年第12期13卷 401-410页

作者： Hatrydt Guillaume Dimitri Kouamé Lisiane Mewetieh kouassi olivier claver koffi Bathaix Fulgence Mamert Yao Medical Sciences Training and Research Unit of Abidjan Félix Houphou&#235t-Boigny University Abidjan Ivory Coast Hepatology and Gastroenterology Unit Yopougon University Hospital Abidjan Ivory Coast

Context/Objective: Few studies have been carried out in a country with high endemicity for Helicobacter pylori (H. pylori) infection in Sub-Saharan Africa looking for the association of intestinal metaplasia (IM) with chronic gastritis. We hypothesize that IM is correlated with the intensity of H. pylori infection in a country with high endemicity, Ivory Coast. The objective of this study was to determine the prevalence of intestinal metaplasia in chronic H. pylori gastritis in Ivory Coast. Methods: This was a prospective, cross-sectional, multicenter study, carried out over a period of 5 months, in the reference hospital centers of Abidjan, specialized in Gastroenterology. All patients who had undergone Gastroscopy with biopsies according to the criteria of the Sydney System for the anatomopathological study, those with chronic gastritis and/or H. pylori intestinal metaplasia on histology and in whom all the parameters of the Sydney system classification had been well informed. The quantitative variables were expressed by their means accompanied by their standard deviations and the qualitative variables by their numbers and percentages. Chi-square and Fischer tests were used to look for associations between variables. The significance level was set at 5%. Results: 152 patients were retained. The mean age was 44.9 ± 12.9 years. The prevalence of intestinal metaplasia was 11.8%. In univariate analysis, no significant association was found between clinical and pathological sociodemographic factors (age, sex, ethnicity, educational level, profession) and intestinal metaplasia in chronic Helicobacter pylori gastric cases. In multivariate analysis we found that prolonged use of Proton Pump Inhibitors (PPIs) and a history of Gastroesophageal Reflux Disease (GERD) were significantly associated with the absence of IM. Conclusion: Chronic H. pylori gastritis is the main risk factor for intestinal metaplasia. Prolonged use of PPIs and a history of GERD were significantly iden

关键词： Helicobacter Pylori Chronic Gastritis Intestinal Metaplasia Ivory Coast

Helicobacter pylori Infection and Gastroduodenal Lesions: Prevalence and Associated Factors in Cote d’Ivoire

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Open Journal of Gastroenterology 2022年第2期12卷 27-35页

作者： Mamadou Diakité Amadou Koné Akoun Fabrice Aké kouassi olivier claver koffi Anassi Jean Baptiste Okon Kadidiatou Diallo Department of Medicine and Hepato-Gastroenterology Teaching Hospital of Bouaké Bouaké Cote d’Ivoire Faculty of Medical Sciences Alassane Ouattara University Bouaké Cote d’Ivoire

Objective: The objective is to determine the prevalence of Helicobacter pylori (Hp) infection and highlight the determinants of the infection as well as the gastric histopathological lesions associated with this infection. Methods: This is a retrospective study carried out from August 01, 2015 to December 31, 2020 in Bouaké. It included all patients with gastric and/or duodenal lesion on upper gastrointestinal endoscopy in whom gastric biopsies and histopathology results are available. Results: The study involved 510 patients (301 men and 209 women). The prevalence of Hp was 66.47% (339/510 patients). The presence of Hp was not significantly related to age and gender. Epigastralgia was the most common indication with no significant difference between the positive and negative Hp groups (65.37% vs 34.63%, p = 0.35). A significant difference was only observed for duodenal ulcers (84.31% Hp+ vs 15.69% Hp-, p = 0.004). Regarding histological lesions: Chronic and active gastritis was strongly related to the presence of Hp (p < 0.05). Intestinal metaplasia and gastric atrophy were not significantly associated with the presence of Hp. These precursor lesions of gastric cancer (metaplasia and atrophy) were, however, significantly related to chronic gastric disease with p = 0.02 and p Conclusion: The prevalence of Hp is high in Bouaké. Our study confirms the link between Hp infection and chronic and active gastritis.

关键词： Helicobacter Pylori Gastritis Atrophy Intestinal Metaplasia

Prevalence and Factors Associated with Intestinal Metaplasia in Chronic Helicobacter pylori Gastritis in a Country with High Endemicity: Ivory Coast Case

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Bacteriological Profile of Infections Encountered in a Pneumology Service in a Moderate-Income Country [Pneumology Department of CHU Cocody (Côte d’Ivoire)]

Open Journal of Gastroenterology（肠胃病学期刊） 2023年第12期

作者： Hatrydt Guillaume Dimitri Kouamé Lisiane Mewetieh kouassi olivier claver koffi Bathaix Fulgence Mamert Yao

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Open Journal of Respiratory Diseases 2024年第1期14卷 1-11页

作者： Brou Jean Marcel Ahui Alitonde Eudoxie Djegbeton Alima Kone Marc-olivier koffi Kouame Clarisse Elogne Mobio Nancy Hermine Benjamin Kouraogo Erick Akouatia Constante Virginie Brou-Gode Kigninlman Horo Boko Alexandre kouassi Ngoran koffi Pneumology Service Teaching Hospital of Cocody Abidjan C&#244te d’Ivoire Medical School of Abidjan University Félix Houphou&#235t Boigny Abidjan C&#244te d’Ivoire Pasteur Institute of Cô te d’Ivoire Abidjan C&#244te d’Ivoire

Introduction: Infections represent a real public health problem aggravating the morbidity and mortality of hospitalized patients. Methods: This was a retrospective study with descriptive purposes over a period of 05 years, in the Pneumology Department of the University Hospital of Cocody. Results: The average age in our population was 42 years. We observed a male predo- minance of 64.5%, with a sex ratio of 1.8. Medical history was dominated by HIV infection (23.5%), followed by tuberculosis (15.6%). Concerning lifestyle, smoking was found in 38% of cases. Symptoms progressed chronically in 80% of cases. An infectious syndrome was found in 75% of cases. Microbial culture was positive in 42% of cases. Pseudomonas aeruginosa and Klebsiella pneumoniae were encountered in 26.4% of cases each, followed by Echerichia coli in 10.4% of cases. Klebsiella pneumoniae in the first three years topped the list, but gradually. Pseudomonas aeruginosa maintained its leadership over the last three years. Pseudomonas aeruginosa isolates expressed a resistance rate of 9.8% to ceftazidime and 8.1% to imipenem;to aztreonam (36%), ticarcillin (33.3%) and levofloxacin. These strains were susceptible to fosfomycin (100%), mero- penem (96.6%) and amikacin (96%). For isolated strains of Entero- bacteria- ceae, resistance was observed about ticarcillin (83.3%) and amoxicillin clavula- nic acid (71.2%). Streptococcaceae showed resistance to tetracycline (69.2%) and erythromycin (50%). Over the years there has been an increase in re- sistance to amoxicillin-clavulanic acid ceftriaxone. The death rate was 14%. Conclusion: The bacterial profile of infections is dominated by germs respon- sible for nosocomial infection with significant mortality.

关键词： Bacterial Pleural Pneumonia Nosocomial Infection Sub-Saharan Africa Antibiotic Therapy

Optimization of Biofuel Formulation by Mixture Design

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Advances in Chemical Engineering and Science 2024年第1期14卷 48-56页

作者： Konan Edmond kouassi Abollé Abollé Kouamé olivier-Marc Kouakou David Boa N’guessan Raymond Kré kouassi Benjamin Yao Laboratory of Thermodynamics and Physical Chemistry of the Environment (LTPCM) UFR-SFA University of Nangui ABROGOUA Abidjan C&#244te d’Ivoire Laboratory of Fundamental and Applied Physics (LPFA) UFR-SFA University of Nangui ABROGOUA Abidjan C&#244te d’Ivoire Laboratory of Industrial Processes for the Synthesis of the Environment and New Energies (LAPISEN) of the Félix Houphouë t Boigny National Polytechnic Institute Yamoussoukro C&#244te d’Ivoire

With the full growth of energy needs in the world, several studies are now focused on finding renewable sources. The aim of this work is to optimise biofuel formulation from a mixture design by studying physical properties, such as specific gravity and kinematic viscosity of various formulated mixtures. Optimization from the mixture plan revealed that in the chosen experimental domain, the optimal conditions are: 40% for used frying oil (UFO), 50% for bioethanol and 10% for diesel. These experimental conditions lead to a biofuel with a density of 0.84 and a kinematic viscosity of 2.97 cSt. These parameters are compliant with the diesel quality certificate in tropical areas. These density and viscosity values were determined according to respective desirability values of 0.68 and 0.75.

关键词： Biofuel Optimization Mixture Design

Habits on Social Networks at Workplace: A Survey of Motivations and Behaviour

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Open Journal of Applied Sciences 2024年第8期14卷 2154-2168页

作者： Thomas Kakou kouassi Douatia Koné Aliou Bamba Aladji Kamagaté olivier Asseu Yvon Kermarrec Laboratoire des Sciences et Technologies de lInformation et de la Communication (LASTIC) Ecole Superieure Africaine des TIC (ESATIC) Abidjan Cte dIvoire Institut National Polytechnique Houphout Boigny (INPHB) Yamoussoukro Cte dIvoire Departement de Mathematiques Physique et Chimie Universit Plforo Gon Coulibaly (UPGC) Korhogo Cte dIvoire Agence Nationale de la Recherche (ANR) Paris France Laboratoire des Sciences et Techniques de linformation de la Communication et de la Connaissance (Lab-STICC) IMT Atlantique Brest France

This article explores the use of social networks by workers in Abidjan, Côte d’Ivoire, with particular emphasis on a descriptive or quantitative analysis aimed at understanding motivations and methods of use. More than five hundred and fifty questionnaires were distributed, highlighting workers’ preferred digital channels and platforms. The results indicate that the majority use social media through their mobile phones, with WhatsApp being the most popular app, followed by Facebook and LinkedIn. The study reveals that workers use social media for entertainment purposes and to develop professional and social relationships, with 55% unable to live without social media at work for recreational activities. In addition, 35% spend on average 1 to 2 hours on social networks, mainly between 12 p.m. and 2 p.m. It also appears that 46% believe that social networks moderately improve their productivity. These findings can guide marketing strategies, training, technology development and government policies related to the use of social media in the workplace.

关键词： Social Network Social Media Applications Poisson’s Law Statistics Digital Supports Workers Productivity

Optimization of Biofuel Formulation by Mixture Design

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Determination of a Numerical Analysis Algorithm for the Regulation of Blood Sugar in Diabetics

Advances in Chemical Engineering and Science（化学工程与科学期刊） 2024年第1期

作者： Konan Edmond kouassi Abollé Abollé Kouamé olivier-Marc Kouakou David Boa N’guessan Raymond Kré kouassi Benjamin Yao

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Open Journal of Applied Sciences 2021年第8期11卷 908-928页

作者： Kolo Silue Hyacinthe kouassi Konan Mamadou Coulibaly olivier Asseu Laboratoire des Sciences et Technologies de l’Information et de la Communication (LASTIC) ESATIC Abidjan C&#244te d’Ivoire

Acceptable glycemic control when examining the effects of meals was achieved when combining basal insulin therapy and high concentration insulin injection before a meal, when using a PID controller (Proportionality, Integrity and Derivative actions) alone, when using a PID controller with basal insulin therapy and when combining the three methods of insulin delivery. Naturally, a type 1 diabetic must inject himself with insulin in well-measured doses. Thus, the management and control of diabetes become a complex task when one must be considered the disturbance due to nutrition and sports activity. This concern has been at the center of much research through different approaches through mathematical methods and Artificial Intelligence methods. This article simulates a physiological model of glycemic control in type 1 diabetics by a PID regulatory mechanism, in the context of disturbances caused by the patient’s meals and athletic activity.

关键词： System of Differential Equation Solving Algorithm Physiological Model Simulation Glucose Concentrations Diabetic Disturbance Function PID Controller