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Global prevalence of occult hepatitis C virus: A systematic review and meta-analysis

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World Journal of Methodology 2022年第3期12卷 179-190页

作者： Donatien Serge Mbaga Sebastien Kenmoe Jacky Njiki Bikoï Guy Roussel Takuissu Marie Amougou-Atsama Etienne Atenguena Okobalemba Jean Thierry Ebogo-Belobo Arnol Bowo-Ngandji Martin Gael Oyono Jeannette Nina Magoudjou-Pekam Ginette irma Kame-Ngasse Alex Durand Nka Alfloditte Flore Feudjio Cromwel Zemnou-Tepap Elie Adamou Velhima Juliette Laure Ndzie Ondigui Rachel Audrey Nayang-Mundo Sabine Aimee Touangnou-Chamda Yrene Kamtchueng Takeu Jean Bosco Taya-Fokou Chris Andre Mbongue Mikangue Raoul Kenfack-Momo Cyprien Kengne-Ndé Carole Stephanie Sake Seraphine Nkie Esemu Richard Njouom Lucy Ndip Sara Honorine Riwom Essama Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Department of Microbiology and Parasitology University of BueaBuea 00237Cameroon Department of Virology Centre Pasteur of CameroonYaounde 00237Cameroon Centre of Research in Food Food Security and NutritionInstitute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Centre de Recherche sur les Maladies Emergentes et Re-Emergentes Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Faculty of Medicine and Biomedical Science The University of Yaounde IYaounde 00237Cameroon Medical Research Centre Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Laboratory of Parasitology and Ecology The University of Yaounde IYaounde 00237Cameroon Department of Biochemistry The University of Yaounde IYaounde 00237Cameroon Virology Laboratory Chantal Biya International Reference Center for Research on HIV/AIDS Prevention and ManagementYaounde 00237Cameroon

BACKGROUND Occult hepatitis C infection(OCI)is characterized by the presence of hepatitis C virus(HCV)RNA in the liver,peripheral blood mononuclear cells(PBMC)and/or ultracentrifuged serum in the absence of detectable HCV-RNA in *** has been described in several categories of populations including hemodialysis patients,patients with a sustained virological response,immunocompromised individuals,patients with abnormal hepatic function,and apparently healthy *** To highlight the global prevalence of *** We performed a systematic and comprehensive literature search in the following 4 electronic databases PubMed,EMBASE,Global Index Medicus,and Web of Science up to 6th May 2021 to retrieve relevant studies published in the *** studies were unrestricted population categories with known RNA status in serum,PBMC,liver tissue and/or ultracentrifuged *** were extracted independently by each author and the Hoy et al tool was used to assess the quality of the included *** used the random-effect meta-analysis model to estimate the proportions of OCI and their 95%confidence intervals(95%CI).The Cochran's Q-test and the I2 test statistics were used to assess heterogeneity between *** plot and Egger test were used to examine publication bias.R software version 4.1.0 was used for all *** The electronic search resulted in 3950 *** obtained 102 prevalence data from 85 included *** pooled prevalence of seronegative OCI was estimated to be 9.61%(95%CI:6.84-12.73)with substantial heterogeneity[I^(2)=94.7%(95%CI:93.8%-95.4%),P<0.0001].Seropositive OCI prevalence was estimated to be 13.39%(95%CI:7.85-19.99)with substantial heterogeneity[I^(2)=93.0%(90.8%-94.7%)].Higher seronegative OCI prevalence was found in Southern Europe and Northern Africa,and in patients with abnormal liver function,hematological disorders,and kidney *** seropositive OCI prevalence was found in Southern Europe,Northern

关键词： Occult hepatitis C virus infection Prevalence Worldwide Peripheral blood mononuclear cells Hepatitis C virus

Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater

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Journal of Environmental Science and Engineering(A) 2013年第12期2卷 744-752页

作者： irma Lia Botto Maria Jose gonzalez Delia Gazzolli Edgardo Luis Soto CEQUINOR-CONICET (Centre for Inorganic Chemistry) University of La Plata La Plata 1900 Argentina INREMI-CICPBA (Institute of Mineral Resources) University of La Plata La Plata 1900 Argentina Department of Chemistry University of Roma La Sapienza Rome 00185 Italia Multipurpose Pilot Plant (PLAPIMU-CICPBA) University of La Plata Gonnet 1897 Argentina

Low-cost adsorbents constituted by Fe-modified-aluminosilicates (laminar and zeolite type minerals) were developed and characterized to be used in the arsenic removal from groundwater. Iron activation was carried out "in situ" by the synthesis and deposition of mesoporous ferrihydrite. Natural iron-rich aluminosilicate was used as reference. All samples were characterized by X-ray diffraction, Raman spectroscopy, BET N 2 -adsorption, SEM-EDS microscopy and ICP chemical analysis. Experimental results of arsenic sorption showed that iron-poor raw materials were not active, unlike iron activated samples. The iron loading in all activated samples was below 5% (expressed as Fe 2 O 3 ), whereas the removal capacity of these samples reaches between 200-700 μg of As by g of adsorbent, after reusing between 17 cycles and 70 cycles up to adsorbent saturation. Differences can be associated to mineral structure and to the surface charge modification by iron deposition, affecting the attraction of the As-oxoanion. On the basis of low-cost raw materials, the easy chemical process for activation shows that these materials are potentially attractive for As(V) removal. Likewise, the activation of clay minerals, with natural high content of iron, seems to be a good strategy to enhance the arsenic adsorption ability and consequently the useful life of the adsorbent.

关键词：硅铝酸盐地下水铁矿活化除砷天然 SEM-EDS 矿物结构

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创新科技推出新型外设

每周电脑报

每周电脑报 1997年第22期 58-58页

作者： irma Prunesqualor

记者 irma Prunesqualor 报道一向以多煤体附加卡见长的 Creative Labs 创新科技干5月下旬推出一种新型 PC 外设。首席开发人员 Rusty Snausage 说,这种称为“Smeilifier”的新型外设可以产生气味,支持即插即用。“这种产品可以全面改... 详细信息

记者 irma Prunesqualor 报道一向以多煤体附加卡见长的 Creative Labs 创新科技干5月下旬推出一种新型 PC 外设。首席开发人员 Rusty Snausage 说,这种称为“Smeilifier”的新型外设可以产生气味,支持即插即用。“这种产品可以全面改观人机交互的方式。我们开发的这种惊世之作向最广大的用户敞开了嗅赏的世界。”这种设备可以与任何运行 Windows 的计算机相连,经过编程能够释放出超

关键词：人机交互即插即用惊世之作游戏引擎标准语言面向对象的开发工具包德曼丹尼斯持续时间

Impact of Modification Process on Graphite Structure at Application of Chloroperfluorododecylfluoro Sulfate

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Journal of Chemistry and Chemical Engineering 2015年第7期9卷 454-458页

作者： Marina Gurgenishvli Givi Papava Vitali Sherozia Ia Chitrekashvili Rusudan Tsiskarishvili irma Jinikashvili Petre Melikishvili Institute of Physical and Organic Chemistry lvane Javakhishvili Tbilisi State University Tbilisi O179 Georgia

Impact of the process of modification on graphite structure at the application of fluorine-containing oligomer-FDS (chloroperfluorododecylfluoro sulfate) has been studied. It was shown that during this process graphite structure does not change. Only particles of FDS are destructed into monolayers, which are spread in graphite intercrystalline voids. At the mechanical impact it protects graphite from destruction and correspondingly, improveing some of its tribotechnical characteristics.

关键词：石墨结构改性工艺应用硫酸机械冲击 FDS 低聚物

A Simulation Model for the Risk of Fetal Exposure Originated by the Zika Virus (VIZK)

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Health 2016年第12期8卷 1178-1186页

作者： Dalia M. Muñoz Pizza Anibal Muñoz Loaiza Oscar A. Manrique Arias Vanessa Abello Sossa Carlos A. Abello Muñoz Steven Raigosa Osorio Hans Meyer Contreras John F. Arredondo Montoya gonzaga Ospina Patiño irma Pérez Contreras Maria E. Cardenas Perea Miguel A. Enríquez Guerra Jesús A. Valdez García Grupo de Modelación Matemática en Epidemiología (GMME) Facultad de Educación Universidad del Quindío Quindío Colombia Facultad de Medicina Benemérita Universidad Autónoma de Puebla Puebla México

It is set and analyzed a simulation model based on non-linear ordinary differential equations to interpret the dynamics of the microcephaly incidence caused by the Zika virus in a risk group of pregnant women. This one is induced by a population of men in a reproductive age. Also, some parameters of the model were estimated for an average temperature of 23℃ and by using the adjusted functions from references [1] [2]. All system simulations were done with the Maple software and parameters values obtained from several sources (estimated, hypothetic, and form literature). It has been found that the application of contraceptive measures impacts the population of sexually active women. As result, the exposure to congenital abnormalities increases, particularly, microcephaly.

关键词： Model Microcephaly Zika Virus Basic Reproduction Number Risk Group Incidence

Impact of small-scale mining on health and environment

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Chinese Journal Of Geochemistry 2006年第B8期25卷 243-243页

作者： Annabelle P. Yumang irma R. Makalinao Nelia P. Cortes-Maramba Ana Trinidad F. Rivera Department of Health Center for Health Development Davao Region National Poison Center and Information Service University of the Philippines Department of Health Environmental and Occupational Health Office

TNFα和IL-6体外对颗粒物的反应：随颗粒物大小、季节、多环芳烃和土壤含量的变化

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环境与职业医学 2016年第12期33卷 1202-1208页

作者： Natalia Manzano-León Jesús Serrano-Lomelin Brisa N.Sánchez Raúl Quintana-Belmares Elizabeth Vega Inés Vázquez-López Leonora Rojas-Bracho Maria Tania López-Villegas Felipe Vadillo-Ortega Andrea De Vizcaya-Ruiz irma Rosas Perez Marie S.O’Neill Alvaro R.Osornio-Vargas 季麟(翻译) 金泰廙(审校) Departamento de Investigacion Basica Instituto Nacional de CancerologiaMexicoDFMexico School of Public Health University of AlbertaEdmontonAlbertaCanada Department of Environmental Health Sciences Department of Epidemiology School of Public HealthUniversity of MichiganAnn ArborMichiganUSA Direccion de Investigacion y Posgrado Instituto Mexicano del PetroleoMexicoDFMexico Gerencia de Ciencias Ambientales Instituto Nacional de Investigaciones NuclearesLa MarquesaOcoyoacacEstado de MexieoMexico Instituto Nacional de Ecologta y Cambio Climatico MexicoDFMexico National Autonomous University of Mexico(UNAM)at the National Institute of Genomic Medicine MexicoDFMexico Departamento de Toxicologla CinvestavMexicoDFMexico Centro de Ciencias de la Atmosfera UNAMMexicoDFMexico Department of Paediatrics University of AlbertaEdmontonAlbertaCanada 不详

[背景]颗粒物(PM)与人类健康之间的关联随着季节变化而不同,这种现象可能与颗粒物的成分以及毒性相关的季节性交互作用有关。[目的]检测PM成分的季节性变化,并使用多个PM样本评估PM的体外促炎症可能性。[方法]以5个污染源不同的城市地... 详细信息

[背景]颗粒物(PM)与人类健康之间的关联随着季节变化而不同,这种现象可能与颗粒物的成分以及毒性相关的季节性交互作用有关。[目的]检测PM成分的季节性变化,并使用多个PM样本评估PM的体外促炎症可能性。[方法]以5个污染源不同的城市地区为采集地点,每周采集样本,在多雨温暖季节和干燥寒冷季节累积采集90份PM_(10)和PM_(2.5)样本。对其中检测到的元素、多环芳烃(PAHs)和内毒素进行主成分分析(PCA)。在人单核细胞(THP-1)中检测PM诱导肿瘤坏死因子α(TNFα)和白介素6(IL-6)分泌的可能性,并用组分评分建立促炎症反应的模型。[结果]PM的成分随其大小和季节而变化。PCA确定了PM中两种随季节变化的主要组分。燃烧相关的成分(如钒、苯并(a)芘、苯并(a)蒽)组成组分1(C_1),土壤相关的成分(如内毒素、硅、铝)组成组分2(C_2)。多雨温暖季节采集的PM中C_2含量较高,而干燥寒冷季节采集的PM(尤其是PM_(2.5))中C_1含量较高。细胞因子生成水平与PM_(10)和C_2(多雨温暖季节)正相关,但与PM_(2.5)和C_1(干燥寒冷季节)负相关。C_2含量较高的PM暴露水平越高,TNFα分泌越多;样本含有≥0.1%的C_1相关PAHs时,无论样本中C_2含量高低,暴露于该样本后TNFα对PM的反应性分泌都会降低。IL-6检测结果提示PM成分和颗粒大小之间存在复杂的交互作用。[结论]TNFα分泌具有季节性并与PM大小相关,PM中的土壤含量及PAH含量的变化是其根本原因。这些结果提示,流行病学研究中一些健康结局与PM之间关联的季节性差异能用PM组分的混合物来解释。

关键词：多环芳烃主成分分析内毒素检测采集样流行病学研究细胞因子城市地区肿瘤坏死因子α 变异系数苯并

Global prevalence of hepatitis B virus serological markers among healthcare workers:A systematic review and meta-analysis

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World Journal of Hepatology 2021年第9期13卷 1190-1202页

作者： Gadji Mahamat Sebastien Kenmoe Etheline W Akazong Jean Thierry Ebogo-Belobo Donatien Serge Mbaga Arnol Bowo-Ngandji Joseph Rodrigue Foe-Essomba Marie Amougou-Atsama Chavely Gwladys Monamele Chris Andre Mbongue Mikangue Ginette irma Kame-Ngasse Jeannette Nina Magoudjou-Pekam Cromwel Zemnou-Tepap Dowbiss Meta-Djomsi Martin Maidadi-Foudi Sabine Aimee Touangnou-Chamda Audrey Gaelle Daha-Tchoffo Abdel Aziz Selly-Ngaloumo Rachel Audrey Nayang-Mundo Jacqueline Felicite Yengue Jean Bosco Taya-Fokou Lorraine K M Fokou Raoul Kenfack-Momo Dimitri Tchami Ngongang Efietngab Atembeh Noura Herve Raoul Tazokong Cynthia Paola Demeni Emoh Cyprien Kengne-Nde Jean Joel Bigna Onana Boyomo Richard Njouom Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Department Centre Pasteur of CameroonYaounde 00237Cameroon Department of Biochemistry University of DschangDschang 00237Cameroon Medical Research Centre Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Department of Mycobacteriology Centre Pasteur of CameroonYaounde 00237Cameroon Centre de Recherche sur les Maladies Emergentes et Re-Emergentes Institut de Recherches Medicales et d'Etudes des Plantes MedicinalesYaounde 00237Cameroon Department of Biochemistry The University of Yaounde IYaounde 00237Cameroon Department of Medical Biochemistry The University of Yaounde IYaounde 00237Cameroon Department of Microbiology Protestant University of Central AfricaYaounde 00237Cameroon Department of Animals Biology and Physiology The University of Yaounde IYaounde 00237Cameroon Evaluation and Research Unit National AIDS Control CommitteeYaounde 00237Cameroon Department of Epidemiology and Public Health Centre Pasteur of CameroonYaounde 00237Cameroon

BACKGROUND The hepatitis B virus(HBV)infection is a global public health concern that affects about 2 billion people and causes 1 million people deaths *** is a bloodborne disease and healthcare workers(HCWs)are a high-risk group because of occupational hazard to patients’*** regions of the world show a highly variable proportion of HCWs infected and/or immunized against *** data on serologic markers of HBV infection and immunization in HCWs are very important to improve strategies for HBV *** To determine the worldwide prevalence of HBV serological markers among *** In this systematic review and meta–analyses,we searched PubMed and Excerpta Medica Database(Embase)to identify studies published between 1970 and 2019 on the prevalence of HBV serological markers in HCWs *** also manually searched for references of relevant *** independent investigators selected studies and included those on the prevalence of each of the HBV serological markers including hepatitis B surface antigen(HBsAg),hepatitis e antigen(HBeAg),immunoglobulin M anti-HBc,and *** quality of eligible studies was assessed and random-effect model meta-analysis resulted in the pooled prevalence of HBV serological markers HBV infection in ***(I²)was assessed using theχ²test on Cochran’s Q statistic and H ***’sources were explored through subgroup and metaregression *** study is registered with PROSPERO,number *** We reviewed 14059 references,out of which 227 studies corresponding to 448 prevalence data among HCWs(224936 HCWs recruited from 1964 to 2019 in 71 countries)were included in this *** pooled seroprevalences of current HBsAg,current HBeAg,and acute HBV infection among HCWs were 2.3%[95% confidence interval(CI):1.9-2.7],0.2%(95%CI:0.0-1.7),and 5.3%(95%CI:1.4-11.2),*** pooled seroprevalences of total immunity against HBV and immu

关键词： Healthcare workers Hepatitis B virus Seroprevalence Hepatitis B surface antigen Hepatitis e antigen

Ammonium Thiosulfate Ecological Viable Alternative to Replace Sodium Cyanide in Gold and Silver Dissolution Ores

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Journal of Environmental Science and Engineering(A) 2016年第5期5卷 223-229页

作者： Maria del Carmen Hernandez Maria del Carmen Avitia Heriberto Pena irma Leticia gonzalez Nancy Veronica Torres Abdiel Rosaldo Felix[ Luis Miguel Rodriguez Laura Bibiana Hernandez Department of Chemical and Biochemical Engineering Technological Institute of Parral Chihuahua 33850 Mexico Department of Economic Administrative Department Technological Institute of Parral Chihuahua 33850 Mexico Department of Industrial Engineering Technological Institute of Parral Chihuahua 33850 Mexico Engineering and Independent Consultant Palma Triangular 108 San Jose de Pozo Bravo Aguascalientes 20126 Mexico