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Assessment of Vulnerability to Groundwater Pollution in the Lobo Watershed at Nibéhibé(Central-West, Côte d’Ivoire)

Journal of Water resource and Protection 2020年第8期12卷 657-671页

作者： Yiwa Monique Kamenan Oi Mangoua Jules Mangoua brou Dibi Sampah Eblin Georges Kouakou Lazare Kouassi Kouamé Auguste Kouassi Laboratory of Science and Technology of Environment Jean Lorougnon Guédé University Daloa C&ocirc te d’Ivoire Laboratory Geosciences et Environment Nangui Abrogoua University Abidjan C&ocirc te d’Ivoire

Drinking water supply to people in rural areas is increasingly oriented towards the search for groundwater. However, these resources, which were once of good quality, are currently threatened by various sources of pollution points and diffuse. The objective of this study is to map the intrinsic vulnerability to groundwater pollution of the Lobo watershed in Nibéhibé. The intrinsic vulnerability mapping method, PaPrIKa adapted or PaPrI which acronym is the protection of aquifers (Pa) based on three criteria: P for protection, r for rock type, I represents infiltration was used. The results show three (3) vulnerability classes, which are moderate, high and very high. This map shows that the high vulnerability class (89%) dominates the study area. This predominance shows that the groundwater of the Lobo watershed is at high risk of pollution.

关键词： Pollution Groundwater Vulnerability PaPrI Côte d’Ivoire

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Differential Pulse Voltammetric Simultaneous Determination of Paracetamol and Omnipaque on Boron Doped Diamond Electrode: Application to Natural Tomato, Carrot, Cucumber Juices and Wastewater

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American Journal of Analytical Chemistry 2023年第10期14卷 434-450页

作者： Koffi Konan Martin Sadia Sahi Placide Kouadio brou Albert Gnamba Corneil Quand-Même Fofié Thiery Auguste Appia Koffi Konan Sylvestre Lassiné Ouattara UFr Environnement Université Jean Lorougnon Guédé Daloa C&ocircte d’Ivoire UFr Sciences et Technologies Université Alassane Ouattara Bouaké C&ocircte d’Ivoire Laboratoire de constitution et de réaction de la matière UFR SSMT Université Félix Houphouet Boiguy Abidjan C&ocircte d’Ivoire

This article describes the use of a boron-doped diamond electrode (BDDE) as an electrochemical sensor for the simultaneous determination of omnipaque (OMP) and paracetamol (PCM) in perchloric acid medium (HClO4 0.1 M) and in complex matrices such as tomato, carrot and cucumber juices and waste water from the Treichville University Hospital. Voltammetric studies allowed us to have well-defined oxidation peaks at distinct potentials of OMP (E = 0.5 V/SCE) and PCM (E = 0.7 V/SCE). Under optimized conditions, well-defined quantities of OMP and PCM, introduced simultaneously by metered additions, gave linear responses in concentration ranges of 259.8 - 467.2 μM for OMP and 58.73 - 116.3 μM PCM. The detection limits obtained are 7.23 μΜ and 3.6 μΜ respectively for OMP and PCM with recovery rates between 85.8% ± 0.1% and 92.6% ± 0.1% for OMP and between 99.9% ± 0.1% and 101.2% ± 0.4% for the PCM. This technique has been successfully used to simultaneously detect these pharmaceuticals in these complex environments. It allows recovery of OMP and PCM respectively up to 97.5% ± 0.0% and 91.6% ± 0.3% in tomato juice;100.0% ± 0.0% and 95.2% ± 0.2% in carrot juice;101.4% ± 0.1% and 97.3% ± 0.3% in cucumber juice;100.1% ± 0.9% and 100.9% ± 0.1% in wastewater. The relevance of this technique for the simultaneous detection of OMP and PCM in tomato, carrot, cucumber juices and in waste water can be studied in the context of the contamination of certain fruits and vegetables by the substances organic pharmaceuticals released into the environment without prior treatment.

关键词： Omnipaque Paracétamol Differential Pulse Voltammetry Boron Doped Diamond Electrode

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Acute Toxicity and Antipyretic Activities of a Methanolic Extract of Alchornea cordifolia Leaves

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Pharmacology & Pharmacy 2013年第7期4卷 1-6页

作者： K. E. Effo G. Kouakou-Siransy G. Irie-Nguessan r. W. Sawadogo I. L. Dally A. B. Kamenan L. S. Kouakou J. Kablan-brou Laboratoire de Pharmacologie et de Physiologie UFR des Sciences Pharmaceutiques et BiologiquesUniversiteFelix Houphouet BoignyAbidjanCote d’Ivoire Laboratoire de Pharmacologie et de Toxicologie Institut de Recherche en Sciences de la Sante(IRSS/CNRST)OuagadougouBurkina Faso Laboratoire de Galenique UFR des Sciences Pharmaceutiques et BiologiquesUniversiteFelix Houphouet BoignyAbidjanCote d’Ivoire.

Alchornea cordifolia (Euphorbiaceae) is a very prized plant among traditional healers in Africa. Its leaves are used for its antipyretic properties in traditional areas. The aim of our study is to determine the acute toxicity and the antipyretic activity of a methanolic extract of Alchornea cordifolia leaves. Acute toxicity was assessed by measuring mortality, changes in body weight, spontaneous movements, and normal rectal temperature in mice. Antipyretic activity was evaluated by brewer’s yeast-induced hyperpyrexia in rats according to Teotino method (1963). The antipyretic effect of methanolicextract of Alchornea cordifolia leaves was compared with paracetamol (100 mg/kg bw) orally. Groups of mice treated with doses of 6500;3250;1625 and 812.5mg/kg of the extract did not show any mortality, nor significant alteration of body weight, nor alteration of spontaneous movements. However, incomplete reversed dose-dependent hypothermic activity was observed with doses of 50.78;101.56;203.12;406.25;and 812.5 mg/kg p.o. of the extract, showing acute toxicity of this plant. In the antipyretic assay, the extract with doses of 50.78;101.56;203.12;406.25;and 812.5 mg/kg p.o. exhibited a significant dose-dependent antipyretic activity similar to paracetamol (100 mg/kg bw) in rats. Thus Alchornea cordifolia may inhibit prostaglandins-biosynthesis from hypothalamus. Our results support claims on its traditional uses in management of fever. However Alchornea cordifolia may affect hypothalamus not only during fever but also when body temperature is normal.

关键词： Alchornea cordifolia Acute Toxicity Brewer’s Yeast Hypothermia

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Acute Intestinal Invagination of the Child at the Teaching Hospital of Bouaké: Ultrasound Diagnosis and Clinical-Echo-Surgical Correlation

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Open Journal of Medical Imaging 2021年第1期11卷 18-28页

作者： Bouassa Davy Melaine Kouakou Konaté Issa Kouamé Paul Bonfils Kouassi Adoubs Cé lestin Bé nié Tsri Akoli Baudouin Bravo Kesse Emile Tanoh Allou Florent Kouadio brou Lambert Yao Achie Jean-ré gis Akobe Sara Carole Sanogo Malick Soro Kouadio N’Dri Medical Imaging and radiodiagnostic Departement of the Teaching Hospital of Bouaké Bouak&#233 Ivory Coast Training and research Unit Medical Sciences Alassane Ouattara University Bouak&#233 Ivory Coast Pediatric Surgery Unit of the Teaching hospital of Bouaké Bouak&#233 Ivory Coast

Background: Acute intestinal invagination or intussusception is the most common abdominal surgical emergency in infants, but it can occur at any age. Performing an ultrasound scan at the slightest clinical suspicion c... 详细信息

rong>Background: rong>Acute intestinal invagination or intussusception is the most common abdominal surgical emergency in infants, but it can occur at any age. Performing an ultrasound scan at the slightest clinical suspicion contributes to early diagnosis and therapeutic management. rong>Objective:rong> To show the relevance of ultrasound in the therapeutic management of the child’s intussusception through a correlation between the ultrasound diagnosis and the clinical and/or per operative diagnosis. rong>Patients and Methods:rong> It was a retrospective study of 24 cases from July 2017 to September 2020 (30 months) in the Medical Imaging and Paediatric Surgery departments of Teaching Hospital of Bouaké. We included only patients from 0 to 15 years old who had digestive symptoms, an abdominal ultrasound scan. These patients were eligible for surgery. Data analysis was performed with Epi info 7 software. rong>results:rong> Median age was 17.2 months [02 - 120]. Male gender predominated (83.3%). Clinico-biological data were dominated by abdominal pain (79.2%), vomiting (75%) and rectorragies (33.3%), with Ombredanne’s triad in 33.3% and hyperleukocytosis (70.8%). Ultrasonography showed invaginated coves (95.8%) sitting in the right angl iliac fossa, peri-umbilical and right flank in 73.9%. Cockade image coupled with the sandwich image accounted for 95.6%. Superficial adenopathies (45.8%) and peri-lesional fluid effusion (20.8%) were associated with it. An occlusive syndrome complicating intussusception was observed in 41.67% associated with intra-peritoneal effusion of fluid (25%). There was a significant diagnostic agreement between the clinic, ultrasound and surgery according to the Fisher’s exact test (p = 0.002). That between ultrasound and surgery was calculated at 95.4%. rong>Conclusion:rong> This study allowed us to show a good clinical-echo-surgical concordance. Ultrasound is therefore an undeniable diagnostic, prognostic an

关键词： Ultrasound Acute Intestinal Invagination Child

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