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Metastasis to the gallbladder:A single-center experience of 20 cases in South Korea

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World Journal of Gastroenterology 2009年第38期15卷 4806-4809页

作者： Won Jae Yoon Yong Bum Yoon Youn Joo Kim Ji kon Ryu Yong-Tae Kim Department of Internal Medicine Seoul National University College of Medicine Department of Internal Medicine Korea Cancer Center Hospital

AIM:To evaluate the clinicopathologic characteristics of patients with metastases to the gallbladder (MGBs).METHODS: We performed a single-center retrospective study of 20 patients with MGBs diagnosed pathologically from 1999 to ***: Among 417 gallbladder (GB) malignancies, 20 (4.8%) were MGBs. The primary malignancies originated from the stomach (n=8), colorectum (n=3), liver (n=2), kidney (n=2), skin (n=2), extrahepatic bile duct (n=1), uterine cervix (n=1), and appendix (n=1). Twelve patients were diagnosed metachronously, presenting with cholecystitis (n=4), abdominal pain (n=2), jaundice (n=1), weight loss (n=1), and serum CA 19-9 elevation (n=1); five patients were asymptomatic. The median survival after the diagnosis of MGB was 8.7 mo. On Cox regression analysis, R0 resection was the only factor associated with a prolonged survival [hazard ratio (HR):0.01,P =0.002]; presentation with cholecystitis was associated with poor survival (HR:463.27, P=0.006).CONCLUSION: MGBs accounted for 4.8% of all pathologically diagnosed GB malignancies. The most common origin was the stomach. The median survival of MGB was 8.7 mo.

关键词：胆囊炎病理诊断韩国恶性肿瘤平均存活时间病理特征回归分析人力资源

Co-Occurring Plant Species of the West African Critically Endangered Aubregrinia taïensis Heine, in Côte d’Ivoire

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American Journal of Plant Sciences 2023年第8期14卷 915-928页

作者： Doudjo Noufou Ouattara Hermann Hippolyte Tro Dofoungo koné Akoua Emilia Afanvi Doh Amed Coulibaly Adama Bakayoko Laboratoire de Botanique et Valorisation de la Diversité Végétale UFR Sciences de la Nature Université Nangui Abrogoua Abidjan C&#244te d’Ivoire Centre Suisse de Recherches Scientifiques en Cô te d’Ivoire (CSRS) Abidjan C&#244te d’Ivoire UFR Sciences Biologiques Université Pelefero Gon Coulibaly Korhogo C&#244te d’Ivoire

The Upper Guinea Forest is subject to heavy deforestation. In this context, many endemic and/or rare plant species are threatened with extinction. This is the case of Aubregrinia taïensis (Aubrév. & Pellegr.) Heine, a critically endangered Sapotaceae species, endemic to Côte d’Ivoire and Ghana. After 3 years of investigation in and around the Tai National Park (TNP) in the West of Côte d’Ivoire, only one individual of this species was located and no sexual reproductive organs (fruits, seeds) were observed. Woody plant species around this individual were inventoried in order to know the species that can co-occur with Aubregrinia taïensis. For that a plot of 30 m of diameter was established around the individual and all of the woody species of this circle were inventoried. Then, the taxonomic diversity, the chorology of the species, the conservation status and their life-form were recorded. A total of 130 woody plant species belonging to 51 families were collected in the site. The most represented families are Euphorbiaceae (12 spp.), Rubiaceae (10 spp.), Annonaceae (7 spp.), Fabaceae, Moraceae, Malvaceae (6 spp. each) while the most represented genera are Diospyros L. (4 spp.), Cola Schott & Endl. and Vitex L. (3 spp.). Species from the Guineo-Congolese Region (GC) are the most abundant (72%). They are followed by West African endemic species (GCW, 19%). Microphanerophytes (mp) are the most abundant and represent more than 40% of the species. Three vulnerable species were found in this plot: Campylospermum amplectens, Placodiscus boya and Trichoscypha cavalliensis. Thus, the preservation of this forest is more than necessary.

关键词： Co-Occurring Species Aubregrinia taïensis Forest Threatened Species Côte d’Ivoire

Fungal Flora on Weeds in the Cashew (Anacardium occidentale L.) Orchard in Côte d’Ivoire

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American Journal of Plant Sciences 2023年第4期14卷 448-463页

作者： Traoré Aboulaye Soro Sibirina Ayemou A. R. Emmanuella Traoré-Ouattara Karidia Kouabenan Abo koné Daouda Laboratory for the Improvement of Agricultural Production UFR Agroforestry Université Jean Lorougnon Guédé Daloa C&#244te d’Ivoire Laboratory of Phytopathology and Plant Biology Department of Training and Research in Agriculture and Animal Resources Institut National Polytechnique Félix Houphou&#235t-Boigny (INPHB) Yamoussoukro C&#244te d’Ivoire African Centre of Excellence on Climate Change Biodiversity and Sustainable Agriculture (CEA-CCBAD) Université Félix Houphou&#235t-Boigny (UFHB) Abidjan C&#244te d’Ivoire

Since 2015, Côte d’Ivoire has been the world’s largest cashew producer. However, cashew orchards in Côte d’Ivoire are infected by fungal diseases that weaken production. And the contribution of weeds to the spread of these diseases is not yet understood. This study was initiated with the aim of establishing the role of weeds in the proliferation of pathogenic fungi in orchards. It consisted of a survey of weeds showing disease symptoms in cashew orchards in Côte d’Ivoire from February 2021 to July 2022. The itinerant method was used for the weed inventory. Symptomatic leaves were collected and sent to the laboratory for diagnosis on PDA (Potatoes Dextrose Agar) medium. In total, 50 species in 46 genera and 23 families were recorded. Laboratory diagnosis of the samples showed that 80% of the weeds identified harboured pathogenic fungi. The highest infection rates were obtained on Danielia oliveri R. (99.33% to 100%), Vitellaria paradoxa G. (100%), Pterocarpus erinaceus P. (83.91% to 99.33%), Micuna pruriens L. (98.33% to 100%) and Isoberlinia doka C. et S. (56.33% to 100%). The diagnosis revealed the presence of Lasiodiplodia sp, Colletotrichum sp, Pestalotia sp, Alternaria sp and Curvularia sp on weeds in the cashew orchard in Côte d’Ivoire.

关键词： Weed Infection Rate Symptoms Cashew Côte d’Ivoire

Study of Malaria in Patients Operated on at the Reference Health Center of Commune I Bamako

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Surgical Science 2023年第9期14卷 598-607页

作者： Tounkara Cheickna Samaké Hamidou koné Abdoulaye Maiga Boubacar Diarra Yaya Kayentao Kassoum Dolo Amadou Diallo Mouctar Department of General Surgery of the Reference Health Center of Commune I Bamako Mali Directorate of Social and Health Services of the Armed Forces of Mali Bamako Mali University of Sciences Techniques and Technologies of Bamako (USTTB) Mali Bamako Mali

Malaria is a febrile and hemolyzing erythrocytopathy due to the development and multiplication of one or more of the five plasmodial species dependent on humans: Plasmodium falciparum, P. malariae, P. ovale, P. vivax and P. knowlesi. These parasites are inoculated into humans by the infective bite of a female mosquito, female anopheles of the genus Anopheles, during a blood meal. The study aimed to: determine the frequency of fever due to malaria after surgery;describe malaria symptomatology and clinical evolution after surgical intervention;determine the average length of hospital stay for operated patients with malaria;evaluate the average cost of malaria treatment. This was a prospective study which involved 110 operated patients, which took place over a period of 12 months from March 2017 to February 2018 in the general surgery department at the Reference Health Center of commune I of the Bamako district. The frequency of malaria was 11.82% before the intervention and 3.64% after the intervention, with an average age of 29.80 years;extremes of 2 years and 76 years and a sex ratio of 1.5 in favor of the male sex. The main clinical signs were fever (38.18%), headache (20.91%) and vomiting (36.36%) and physical asthenia (18.18%). Diagnosed and treated early, malaria progressed favorably. The outcome was simple for all our patients and we did not record any deaths. The cost of treatment was borne by the patients and/or their families. The average cost of treatment was 7915 CFA francs, significantly below the Malian minimum wage which is around 30,000 FCFA. The implementation of preventive measures is necessary to reduce the importance of malaria in hospitals: staff awareness, indoor spraying, use of impregnated mosquito nets.

关键词： Malaria Plasmodium Surgery Fever Thick Gout Rapid Diagnostic Test

Malware Detection Using Deep Learning

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Open Journal of Applied Sciences 2023年第12期13卷 2480-2491页

作者： Achi Harrisson Thiziers koné Tiémoman N’guessan Behou Gérard Traoré Tiémoko Qouddouss Kabir Unité de Recherche et d’Expertise Numérique (UREN) Université Virtuelle de C&#244te d’Ivoire Abidjan C&#244te d’Ivoire

Malware represents a real threat to information systems, because of the damage it causes. This threat is growing today, as these programs take on more complex forms. This means they escape traditional malware detection methods. Hence the need for artificial intelligence, more specifically Deep Learning, which could detect malware more effectively. In this article, we’ve proposed a model for malware detection using artificial neural networks. Our approach used data from the characteristics of machines, particularly computers, to train our Deep Learning algorithm. This model demonstrated an accuracy of around 83% in predicting the presence of malware on a machine. Thus, the use of artificial neural networks for malware detection has shown his ability to assimilate complex, non-linear patterns from data.

关键词： Neural Network ANNs Malicious Code Malware Analysis Artificial Intelligence

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

Ratio of mean platelet volume to platelet count is a potential surrogate marker predicting liver cirrhosis

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World Journal of Hepatology 2018年第1期10卷 82-87页

作者： Hiroya Iida Masaki Kaibori Kosuke Matsui Morihiko Ishizaki Masanori kon Department of Surgery Kansai Medical University

AIM To provide a simple surrogate marker predictive of liver cirrhosis(LC).METHODS Specimens from 302 patients who underwent resection for hepatocellular carcinoma between January 2006 and December 2012 were retrospectively analyzed. Based on pathologic findings, patients were divided into groups based on whether or not they had LC. Parameters associated with hepatic functional reserve were compared in these two groups using MannWhitney U-test for univariate analysis. Factors differing significantly in univariate analyses were entered into multivariate logistic regression *** There were significant differences between the LC group(n = 100) and non-LC group(n = 202) in prothrombin activity, concentrations of alanine aminotransferase, aspartate aminotransferase, total bilirubin, albumin, cholinesterase, type Ⅳ collagen, hyaluronic acid, indocyanine green retention rate at 15 min, maximal removal rate of technitium-99 m diethylene triamine pentaacetic acid-galactosyl human serum albumin and ratio of mean platelet volume to platelet count(MPV/PLT). Multivariate analysis showed that prothrombin activity, concentrations of alanine aminotransferase, aspartate aminotransferase, total bilirubin and hyaluronic acid, and MPV/PLT ratio were factors independently predictive of LC. The area under the curve value for MPV/PLT was 0.78,with a 0.8 cutoff value having a sensitivity of 65% and a specificity of 78%.CONCLUSION The MPV/PLT ratio, which can be determined simply from the complete blood count, may be a simple surrogate marker predicting LC.

关键词： Mean platelet volume Platelet count Liver cirrhosis Hepatic functional reserve Liver fibrosis

Weave-pattern-dependent fabric piezoelectric pressure sensors based on polyvinylidene fluoride nanofibers electrospun with 50 nozzles

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npj Flexible Electronics 2022年第1期6卷 699-707页

作者： Da Bin Kim Ju Han Sun Min Sung Min Seong Kim Bo Kyoung Choi Sung Jun Park Hyae Rim Hong Hong Je Choi Byeong kon Kim Chung Hee Park Jong Hoo Paik Joon-Seok Lee Yong Soo Cho Department of Materials Science and Engineering Yonsei UniversitySeoul 03722Republic of Korea Department of Textile Engineering and Technology Yeungnam UniversityGyeongsan 38541Republic of Korea Deparment of Textile Merchandising and Fashion DesignSeoul National UniversitySeoul 08826Republic of Korea Samsung Electro-Mechanics Co.Ltd. Suwon 16674Republic of Korea Ceratorq Inc. Seoul 08511Republic of Korea Electronic Materials and Component Center Korea Institute of Ceramic Engineering and TechnologyJinju 52851Republic of Korea

Wearable pressure sensors having versatile device structures have been extensively investigated to achieve high sensitivity under mechanical ***,we introduce piezoelectric pressure sensors based on fabrics woven using polyvinylidene fluoride(PVDF)weft and polyethylene terephthalate(PET)warp yarns with different weave structures:1/1(plain),2/2,and 3/3 weft rib *** dependence of the pressure-sensing performance on the weave pattern is demonstrated with an actual large-scale fabric up to the~2 m *** optimized pressure sensor with a 2/2 weft rib pattern produced a high sensitivity of 83 mV N−1,which was 245%higher than that of the 1/1 *** detection performance of the optimal fabric was extensively evaluated with a variety of ambient input sources,such as pressing,bending,twisting,and crumpling,as well as various human ***,a large allfabric pressure sensor with arrayed touch pixel units demonstrated highly sensitive and stable sensing performance.

关键词： pattern fluoride piezoelectric

Kinetic and Thermodynamic Study of the Elimination of Remazol Black on Activated Carbon Based on Ricinodendron heudelotii Shells

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Journal of Materials Science and Chemical Engineering 2023年第9期11卷 1-20页

作者： Kouakou Yao Urbain Kambiré Ollo Eroi N’goran Sévérin koné Yétchié Tchonrontcha Trokourey Albert UFR Sciences et Technologies Université de Man Man C&#244te d’Ivoire Laboratoire de Thermodynamique et Physico-Chimie du Milieu UFR Sciences Fondamentales et Appliquées Université Nangui Abrogoua Abidjan C&#244te d’Ivoire UFR SSMT Laboratoire de Constitution et Réaction de la Matière Université Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire

Activated carbon made from the shells of Ricinodendron heudelotii was used to remove the remazol black dye in aqueous solution. The results of the characterization of this carbon revealed that it is microporous, with a basic global surface (0.337 mmol/L) and a specific surface of 612 m2/g. The prepared carbon therefore has excellent adsorbent properties. Kinetic and thermodynamic studies were carried out to describe the adsorption mechanism of remazol black on this carbon. It appears from this study that the pseudo-second-order kinetic model is the best suited to describe this adsorption phenomenon with an equilibrium time of 200 min. The adsorption equilibrium study revealed that Langmuir and Freundlich models can help to describe the adsorption process. We note that the optimum pH and optimum mass for the removal of 20 mg/L of remazol black are 3 and 0.25 g, respectively. This carbon made it possible to eliminate more than 98% of the remazol dye in aqueous solution. The thermodynamic study revealed that the adsorption is of the physisorption type, spontaneous and endothermic.

关键词： Activated Carbon Ricinodendron heudelotii Dye Removal Optimization Adsorption Isotherm