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High prevalence of epilepsy in onchocerciasis endemic health areas in Democratic Republic of the Congo

Infectious Diseases of Poverty 2018年第1期7卷 663-676页

作者： Evy Lenaerts michel mandro Deby Mukendi Patrick Suykerbuyk Housseini Dolo Deogratias Wonya’Rossi Françoise Ngave Chellafe Ensoy-Musoro Anne Laudisoit An Hotterbeekx Robert Colebunders Global Health Institute University of AntwerpAntwerpBelgium Provincial Health Division of Ituri Ministry of HealthBuniaDemocratic Republic of Congo Centre Neuro Psycho Pathologique Universitede Kinshasa(CNPP-UNIKIN)KinshasaDemocratic Republic of Congo International Center of Excellence in Research Faculty of Medicine and OdontostomatologyBamakoMali Neglected Tropical Diseases Control program Ministry of HealthBuniaDemocratic Republic of the Congo Centre de Recherche en Maladies Tropicales Hopital General de Reference de RethyRethyDemocratic Republic of Congo Interuniversity Institute for Biostatistics and statistical Bioinformatics University of HasseltHasseltBelgium EcoHealth Alliance New YorkUSA Global Health Institute Faculty of Medicine and Health SciencesGouverneur Kinsbergen CentrumDoornstraat 3312610 WilrijkBelgium

Background:A high prevalence of epilepsy has been observed in many onchocerciasis endemic *** study is to estimate the prevalence of active epilepsy and exposure to Onchocerca volvulus infection in a rural population in Ituri province,Democratic Republic of ***:In August 2016,a community-based cross-sectional study was conducted in an onchocerciasis endemic area in the rural health zone of Logo,Ituri *** within two neighbouring health areas were randomly *** identify persons with epilepsy,a three-stage approach was *** the first stage,all individuals of the selected households were screened for epilepsy by non-medical field workers using a validated 5-item *** the second and third stage,suspected cases of epilepsy were examined by non-specialist medical doctors,and by a neurologist,respectively.A case of epilepsy was defined according to the 2014 International League Against Epilepsy(ILAE)*** to *** was assessed by testing for IgG4 antibodies to an *** antigen(OV16 Rapid Test,)in individuals aged 3 years and ***:Out of 1389 participants included in the survey,64 were considered to have active epilepsy(prevalence 4.6%)(95%confidence interval[CI]:3.6-5.8).The highest age-specific epilepsy prevalence estimate was observed in those aged 20 to 29 years(8.2%).Median age of epilepsy onset was 10 years,with a peak incidence of epilepsy in the 10 to 15 year-old age ***16 test results were available for 912 participants,of whom 30.5%(95%CI,27.6-33.6)tested *** prevalence of OV16 positivity in a village ranged from 8.6 to 68.0%.After adjusting for age,gender and ivermectin use,a significant association between exposure to onchocerciasis and epilepsy was observed(adjusted odds ratio=3.19,95%CI:1.63-5.64)(P<0.001).Conclusions:A high prevalence of epilepsy and a significant association between epilepsy and exposure to *** were observed in the population in Ituri

关键词： Onchocerciasis epilepsy Prevalence Democratic Republic of Congo

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Report of the first international workshop on onchocerciasis-associated epilepsy

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Infectious Diseases of Poverty 2018年第1期7卷 238-242页

作者： Robert Colebunders michel mandro Alfred K.Njamnshi michel Boussinesq An Hotterbeekx Joseph Kamgno Sarah O’Neill Adrian Hopkins Patrick Suykerbuyk Maria-Gloria Basanez Rory J.Post Belen Pedrique Pierre-Marie Preux Wilma A.Stolk Thomas B.Nutman Richard Idro Global Health Institute University of AntwerpAntwerpBelgium Provincial Health Division of Ituri BuniaDemocratic Republic of the Congo Department of Neurology Yaounde Central Hospital/University of Yaounde 1Brain Research Africa Initiative(BRAIN)YaoundeCameroon Institut de Recherche pour le Developpement(IRD) MontpellierFrance Centre for Research on Filariasis and other Tropical Diseases(CRFilMT) and Faculty of Medicine and Biomedical SciencesUniversity of Yaounde 1YaoundeCameroon Department of Public Health Institute of Tropical MedicineAntwerpBelgium Neglected and Disabling Diseases of Poverty Consultant KentUK London Centre for Neglected Tropical Disease Research Imperial College LondonLondonUK London School of Hygiene&Tropical Medicine and Liverpool John Moores University LondonUK Drugs for Neglected Diseases initiative GenevaSwitzerland Preux Pierre-Marie INSERMUniversity LimogesCHU LimogesUMR_S 1094Tropical NeuroepidemiologyInstitute of Neuroepidemiology and Tropical NeurologyCNRS FR 3503 GEIST87000 LimogesFrance Department of Public Health Erasmus MCUniversity Medical Centre RotterdamRotterdamThe Netherlands Laboratory of Parasitic Diseases National Institutes of HealthBethesdaMarylandUSA Makerere University College of Health SciencesKampalaUganda

Background:Recently,several epidemiological studies performed in Onchocerca volvulus-endemic regions have suggested that onchocerciasis-associated epilepsy(OAE)may constitute an important but neglected public health problem in many countries where onchocerciasis is still *** text:On October 12-14th 2017,the first international workshop on onchocerciasis-associated epilepsy(OAE)was held in Antwerp,*** workshop was attended by 79 participants from 20 different *** research findings strongly suggest that *** is an important contributor to epilepsy,particularly in meso-and hyperendemic areas for *** with *** is associated with a spectrum of epileptic seizures,mainly generalised tonic-clonic seizures but also atonic neck seizures(nodding),and stunted *** is characterised by an onset of seizures between the ages of 3-18 *** working groups discussed topics such as how to 1)strengthen the evidence for an association between onchocerciasis and epilepsy,2)determine the burden of disease caused by OAE,3)prevent OAE,4)improve the treatment/care for persons with OAE and affected families,5)identify the pathophysiological mechanism of OAE,and 6)deal with misconceptions,stigma,discrimination and gender violence associated with *** OAE Alliance was created to increase awareness about OAE and its public health importance,stimulate research and disseminate research findings,and create partnerships between OAE researchers,communities,advocacy groups,ministries of health,non-governmental organisations,the pharmaceutical industry and funding ***:Although the exact pathophysiological mechanism underlying OAE remains unknown,there is increasing evidence that by controlling and eliminating onchocerciasis,OAE will also ***,OAE constitutes an additional argument for strengthening onchocerciasis elimination *** the high numbers of people with epilepsy

关键词： Onchocerciasis Epilepsy Nodding syndrome Nakalanga syndrome Prevalence Burden of disease Africa

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Community perceptions of epilepsy and its treatment in an onchocerciasis endemic region in Ituri,Democratic Republic of Congo

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Infectious Diseases of Poverty 2018年第1期7卷 1202-1210页

作者： Housseini Dolo michel mandro Deogratias Wonya’Rossi Francoise Ngave Jessica Fraeyman Joseph NSiewe Patrick Suykerbuyk Robert Colebunders Global Health Institute University of AntwerpAntwerpBelgium Provincial Ministry of Health BuniaIturiDemocratic Republic of the Congo International Center of Excellence in Research Faculty of Medicine and Odonto StomatologyBamakoMali Research Group Social Epidemiology and Health Policy University of AntwerpAntwerpBelgium Centre de Recherche en Maladies Tropicales de l’Ituri Hopital General de Reference de RethyRethyDemocratic Republic of Congo

Background:A recent study in the Logo and Rethy health zones in the Ituri Province in the Democratic Republic of Congo(DRC)reported that the majority of the persons with epilepsy(PWE)had not been treated with anti-epileptic medication(AEM)or had stopped *** to the implementation of an epilepsy treatment programme in these health zones,this study investigated the perceptions and experiences regarding epilepsy and its treatment amongst community leaders,PWE and/or their families,traditional healers and health ***:A total of 14 focus group discussions(FGD)and 39 semi-structured interviews(SSI)were conducted with PWE and/or their family members,community leaders,traditional healers,and health professionals in the Logo and Rethy health zones during February 2-19,***:In the two health zones,the clinical signs of convulsive epilepsy were recognized by community ***,a variety of misconceptions about epilepsy were identified including the beliefs that epilepsy is a family-related condition,a contagious disease,is transmitted by insects,saliva or by touching a person of the same sex during seizures,or is caused by evil spirits and *** role of traditional healers in spreading these beliefs was *** study also reported sexual abuse on PWE,stigmatisation of PWE and loss of productivity of PWE and their *** PWE had been using AEM and traditional treatment but were not convinced about the efficacy of these treatment *** lack of training of health providers about epilepsy care,financial barriers in obtaining AEM,and the shortage of AEM at primary health facilities were *** remedies,the community requested access to a decentralized center for epilepsy *** also proposed using churches and community health workers as communication channels for information about ***:Clinical signs of convulsive epilepsy were recognized by the community in the Logo and Rethy health

关键词： Epilepsy Onchocerciasis Community Perception Experiences Treatment Programme Qualitative study

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Onchocerca volvulus as a risk factor for developing epilepsy in onchocerciasis endemic regions in the Democratic Republic of Congo:a case control study

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Infectious Diseases of Poverty 2018年第1期7卷 781-786页

作者： michel mandro Patrick Suykerbuyk Floribert Tepage Degratias Rossy Francoise Ngave Mirza Nazmul Hasan An Hotterbeekx Germain Mambandu Jean Marie Kashama Anne Laudisoit Robert Colebunders Provincial Health Division of Ituri Ministry of HealthBuniaDemocratic Republic of Congo Global Health Institute University of AntwerpAntwerpBelgium Ministry of Health ButaDemocratic Republic of Congo Programme national de lutte contre l’onchocercose KisanganiDemocratic Republic of Congo Centre de Recherche en Maladies Tropicales de l’Ituri RethyDemocratic Republic of Congo University of Hasselt Campus DiepenbeekHasseltBelgium Office of the governor of Tshopo KisanganiDemocratic Republic of Congo Neuropsychopathologic Centre of Mont Amba(CNPP) University of KinshasaKinshasaDemocratic Republic of Congo EcoHealth Alliance New YorkUSA

Background:A high prevalence of epilepsy has been observed in onchocerciasis endemic areas in the Democratic Republic of Congo(DRC).With this study we aimed to investigate whether Onchocerca volvulus infection is a risk factor for developing epilepsy in onchocerciasis endemic regions in the ***:Between October and December 2015,a multi-centre case control study was performed in onchocerciasis endemic health zones(HZ)in the DRC:one study site was situated in Tshopo Province in the HZ of Wanierukula(village of Salambongo)where there had been 13 annual community distributions of treatment with ivermectin(CDTI),a second was situated in Ituri Province in the HZ of Logo(village of Draju)where ivermectin had never been distributed and in the HZ of Rethy(village of Rassia)where there had been THREE CDTI annual campaigns before the *** with unprovoked convulsive epilepsy of unknown etiology were enrolled as cases(n=175).Randomly selected healthy members of families without epilepsy cases from the same village and age-groups and were recruited as controls(n=170).Results:Onchocerciasis associated symptoms(e.g.,itching and abnormal skin)were more often present in cases compared to controls(respectively,OR=2.63,95%CI:1.63-4.23,P<0.0001 and OR=3.23,95%CI:1.48-7.09,P=0.0034).A higher number of cases was found to present with microfilariae in skin snips and with *** IgG4 antibodies in the blood compared to ***,the microfilariae load in skin snips was 3-10 times higher in cases than ***:This case control study confirms that *** is a risk factor for developing epilepsy in onchocerciasis endemic regions in the DRC.

关键词： Onchocerciasis Epilepsy Case control study Risk factors Democratic Republic of Congo

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Comprehensive management of epilepsy in onchocerciasis-endemic areas:lessons learnt from community-based surveys

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Infectious Diseases of Poverty 2019年第1期8卷 98-98页

作者： Joseph Nelson Siewe Fodjo Marieke C.J.Dekker Richard Idro michel Ndahura mandro Pierre-Marie Preux Alfred K.Njamnshi Robert Colebunders Global Health Institute University of AntwerpAntwerpBelgium Full list of author information is available at the end of the article 不详

Background:Onchocerciasis-endem ic regions are known to have a high epilepsy *** resources in these areas and poor access to healthcare by persons with epilepsy(PWE)result in a wide anti-epileptic treatment gap,poor seizure control and a high burden of seizure-related *** comm unity-based surveys highlight the need for epilepsy managem ent strategies suitable for remote onchocerciasis-endemic villages to ensure better health outcom es for *** this paper,we propose a feasible approach to manage PWE in such *** text:Improved management of PWE in onchocerciasis-endemic areas may be achieved by decentralizing epilepsy *** approaches for the diagnosis and treatment of epilepsy may be used by non-physicians,under the supervision of physicians or *** reduce the treatment gap,a regular supply of subsidized anti-epileptic drugs(AED)appropriate for different types of onchocerciasis-associated epilepsy should be *** up a communitybased epilepsy surveillance system will enable early diagnosis and treatment of PWE thereby preventing *** awareness programs on epilepsy must be implemented to reduce stigma and facilitate the social rehabilitation of ***,strengthening onchocerciasis elimination programs by optimizing community-directed treatment with iverm eain(CDTI)and considering alternative treatment strategies might reduce the incidence of ***:A community-based approach with task-shifting of epilepsy care from specialists to non-physician health workers will reduce epilepsy-associated *** advocacy and collaboration with various stakeholders is needed to establish a sustainable,cost-effective chronic care model for epilepsy that will significantly improve the quality of life of PWE in onchocerciasis-endemic regions.

关键词： Epilepsy Onchocerciasis Community-based approach Comprehensive management

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Spectroscopic factors of resonance states with the Gamow shell model

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Science China(Physics,Mechanics & Astronomy) 2024年第1期67卷 38-45页

作者： Mengran Xie Jianguo Li Nicolas michel Honghui Li Wei Zuo CAS Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

We provide an investigation of the spectroscopic factor of resonance states in A=5-8 nuclei,utilizing the Gamow shell model(GSM).Within the GSM,the configuration mixing is taken into account exactly with the shell model framework,and the continuum coupling is addressed via the complex-energy Berggren ensemble,which treats bound,resonance,and non-resonant continuum single-particle states on an equal *** a result,both the configuration mixing and continuum coupling are meticulously considered in the *** first calculate the low-lying states of helium isotopes and isotones with the GSM,and the results are compared with that of ab initio no-core shell model(NCSM)*** results indicate that GSM can reproduce the low-lying resonance states more accurately than the *** this,we delve into the spectroscopic factors of the resonance states as computed through both GSM and NCSM,concurrently conducting systematic calculations of overlap functions pertinent to these resonance ***,the calculated overlap function and spectroscopic factor of6He(01+)■νp3/2→^(7)He(3/2_(1)-)with GSM are compared with the results from ab initio NCSM,variational Monte Carlo,and Green’s function Monte Carlo calculations,as well as available experimental *** results assert that wave function asymptotes can only be reproduced in GSM,where resonance and continuum coupling are precisely addressed.

关键词： spectroscopic factor overlap function resonance states continuum coupling isospin symmetry breaking

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Demonstrating grating-based phase-contrast imaging of laser-driven shock waves

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Matter and Radiation at Extremes 2024年第4期9卷 90-97页

作者： Leonard Wegert Stephan Schreiner Constantin Rauch Bruno Albertazzi Paulina Bleuel Eric Frojdh michel Koenig Veronika Ludwig Artem SMartynenko Pascal Meyer Aldo Mozzanica Michael Müller Paul Neumayer Markus Schneider Angelos Triantafyllidis Bernhard Zielbauer Gisela Anton Thilo michel Stefan Funk Plasma Physics Department GSI Helmholtzzentrum fur SchwerionenforschungPlanckstraBe 164291 DarmstadtGermany Erlangen Centre for Astroparticle Physics(ECAP) Friedrich-Alexander-Universität Erlangen-NurnbergNikolaus-Fiebiger-StraBe 291058 ErlangenGermany LULI-CNRS CEASorbonne UniversitésEcole PolytechniqueInstitut Polytechnique de ParisF-91120 Palaiseau CedexFrance Paul Scherrer Institut(Psi) Forschungsstrasse 1115232VilligenSwitzerland Karlsruhe Institute of Technology Institute of Microstructure TechnologyHermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany

Single-shot X-ray phase-contrast imaging is used to take high-resolution images of laser-driven strong shock *** a two-grating Talbot interferometer,we successfully acquire standard absorption,differential phase-contrast,and dark-field images of the shocked *** agreement is demonstrated between experimental data and the results of two-dimensional radiation hydrodynamics simulations of the laser-plasma *** main sources of image noise are identified through a thorough assessment of the interferometer’s *** acquired images demonstrate that grating-based phase-contrast imaging is a powerful diagnostic tool for high-energy-density *** addition,we make a novel attempt at using the dark-field image as a signal modality of Talbot interferometry to identify the microstructure of a foam target.

关键词： interaction shock phase

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堆石混凝土坝概述及下一代混凝土坝施工技术展望

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Engineering 2024年第1期32卷 99-105页

作者： Feng Jin Duruo Huang michel Lino Hu Zhou Department of Hydraulic Engineering Tsinghua UniversityBeijing 100084China ISL Ingénierie International Commission on Large DamsParis 75016France

Over the past few decades,one of the most significant advances in dam construction has been the inven-tion of the rock-filled concrete(RFC)dam,which is constructed by pouring high-performance self-compacting concrete(HSCC)to fill the voids in preplaced large *** innovative use of large rocks in dam construction provides engineers with a material that requires less cement consumption and hydration heat while enhancing construction efficiency and environmental ***,two fundamental scientific issues related to RFC need to be addressed:namely,the pouring compactness and the effect of large rocks on the mechanical and physical properties of *** article provides a timely review of fundamental research and innovations in the design,construction,and quality control of *** for next-generation concrete dams are discussed from the perspectives of envi-ronmental friendliness,intrinsic safety,and labor savings.

关键词： Rock-filled concrete dam Pouring compactness Effect of large rocks Intelligent quality control Unmanned dam construction

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Unraveling the hydrothermal history of the Xinshuijing Na-metasomatite uranium deposit in the Longshoushan metallogenic belt， Northwest China by coupled hydrothermal zircon U–Pb and albite Ar–Ar dating

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Journal of Earth Science 2024年

作者： JUN ZHONG MARK MIHALASKY michel CUNEY SHENG HE JUN-JIE LI National Key Laboratory of Uranium Resource Exploration-Mining and Nuclear Remote Sensing， Beijing Research Institute of Uranium Geology International Atomic Energy Agency (IAEA)， Nuclear Fuel Cycle and Materials Section， Division of Nuclear Fuel Cycle and Waste Technology， Vienna International Center Université de Lorraine， GéoRessources CNRS State Key Laboratory of Lithospheric Evolution (SKLLE)， Institute of Geology and Geophysics， Chinese Academy of Sciences

Na-metasomatite uranium deposits are an important type of large-tonnage low-grade uranium deposit. They are characterized by an intimate association between uranium minerals and albite， and by the common development of syn-ore hydrothermal zircons. Similar to other types of uranium deposits， constraining an accurate age of mineralization remains a challenge for the Na-metasomatite type ones. In this study， we present for the first time， an approach that combines age dating results from the syn-ore albites (40Ar-39Ar) and hydrothermal zircons （U-Pb） for a typical Na-metasomatite uranium deposit， the Xinshuijing deposit in the Longshoushan metallogenic belt of northwest China. The hydrothermal zircon U-Pb and albite40Ar-39Ar ages are consistent with each other （378-366 Ma; within error）， but also identical to the previously reported uraninite chemical U-Pb ages （approximately 370 Ma）. The coupled application of hydrothermal zircon U-Pb and albite40Ar-39Ar age dating is thus regarded as a robust approach for constraining the age of mineralization for Na-metasomatite uranium deposits. An age gap of approximately 70 m.y. between uranium mineralization （～ 370 Ma） and host granitoid emplacement （about 440 Ma） suggests no direct genetic linkage between the two. Further exploration in the surrounding metamorphic units is therefore suggested， rather than only focusing on the host granitoids， especially where intensive wallrock alteration and structural features are pervasive. The varied hydrothermal zircon δ18O isotope compositions are attributed to the significant fluid-wallrock interaction during the uranium mineralization， which is consistent with our previous fluid inclusion and geochemical studies. Our study highlights the importance of selecting appropriate isotopic dating methods， which is informed by detailed paragenetic and geochemical analysis of dateable minerals formed before or coeval to the main-stage uranium mineralization. Moreover， it is underlined that the e

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中国北方盆地大规模铀成矿作用:地层篇

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地质学报 2024年第7期98卷 1953-1976页

作者：程银行金若时 michel CUNEY V.A.PETROV 苗培森中国地质调查局天津地质调查中心(华北地质科技创新中心) 天津300170 中国地质调查局铀矿地质重点实验室天津300170 法国洛林大学资源学院法国NancyF54500 俄罗斯科学院矿床地质、岩石学、矿物学和地球化学研究所俄罗斯Moscow119017

“红黑”耦合沉积建造是中国北方中—新生代盆地(简称北方盆地)砂岩型铀矿的重要控矿要素之一,在勘查实践中得到了广泛证实和应用,指导发现找矿靶区和矿产地300余处,在成矿理论方面取得重要进展。本文系统总结了北方产铀盆地的60万余米... 详细信息

“红黑”耦合沉积建造是中国北方中—新生代盆地(简称北方盆地)砂岩型铀矿的重要控矿要素之一,在勘查实践中得到了广泛证实和应用,指导发现找矿靶区和矿产地300余处,在成矿理论方面取得重要进展。本文系统总结了北方产铀盆地的60万余米铀矿岩芯钻探成果,通过典型矿床赋矿层沉积学、地球化学等对比研究,系统分析了北方盆地侏罗系、白垩系、新近系等赋矿层形成的沉积环境、物质组成等,进一步明确了制约成矿流体运移、铀矿物沉淀的赋矿层条件。结果显示:①北方盆地自侏罗纪以来,发育了Ⅰ中侏罗世—晚侏罗世早期(Bathonian-Oxfordian)、Ⅱ早白垩世早期(Valanginian)、Ⅲ早白垩世晚期(Aptian)、Ⅳ晚白垩世早期(Cenomanian)、Ⅴ晚白垩世晚期—早古近纪(Campanian-Thanetian)、Ⅵ早新近纪(Aquitanian-Burdigalian)和Ⅶ晚新近纪(ZancleanPiacenzian)7期红层,与下伏富还原性组分的黑色层构成了典型的对偶沉积建造,为北方盆地大规模成矿奠定了赋矿层基础。②地球化学指标显示:红层中Fe^(2+)/Fe^(3+)比值介于0.29~1.47(n=78),黑层Fe^(2+)/Fe^(3+)比值介于0.57~53.96(n=223),赋矿层Fe^(2+)/Fe^(3+)比值介于1.00~26.45(n=52)。赋矿层、黑层Fe^(2+)/Fe^(3+)比值一般大于1,以发育黄铁矿、炭屑、油斑为特征,为相对较还原的环境。红层Fe^(2+)/Fe^(3+)比值一般小于1,以发育钙质结核为特征,为相对较强氧化的环境。③总有机碳含量显示红层为0~0.16%(n=107),含矿层为0.01%~2.65%(n=137),黑层为0.01%~2.66%(n=339),含矿层总有机碳含量略低于黑层,与铀矿的富集沉淀有密切关系。④砂岩型铀矿体呈“板状”或“楔状”产出于黑层顶部的灰色、灰绿色砂岩和细砂岩,甚至泥岩,红层为含氧含铀流体的运移通道,黑层为含氧含铀流体的富集沉淀的化学屏障。因此,北方盆地红层和黑层对偶沉积、旋回充填是大规模铀成矿必要的地层条件,这些认识打破常规思维,“红黑”旋回叠加导致了北方盆地多层成矿的现象,矿体一般呈板状就位于红层和黑层的过渡带,这对深入理解砂岩型铀矿成矿环境、成矿规律及成矿机理等工作和勘查工作部署具有重要实践意义。

关键词：北方中—新生代盆地砂岩型铀矿大规模成矿沉积环境赋矿层

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