Database : MEDLINE
Search on : Echinococcosis [Words]
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[PMID]: 29523176
[Au] Autor:Cadavid Restrepo AM; Yang YR; McManus DP; Gray DJ; Barnes TS; Williams GM; Soares Magalhães RJ; Clements ACA
[Ad] Address:Research School of Population Health, The Australian National University, Canberra, Australian Capital Territory, 0200, Australia. angela.cadavid@anu.edu.au.
[Ti] Title:Environmental risk factors and changing spatial patterns of human seropositivity for Echinococcus spp. in Xiji County, Ningxia Hui Autonomous Region, China.
[So] Source:Parasit Vectors;11(1):159, 2018 Mar 09.
[Is] ISSN:1756-3305
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: Human echinococcoses are parasitic helminth infections that constitute a serious public health concern in several regions across the world. Cystic (CE) and alveolar echinococcosis (AE) in China represent a high proportion of the total global burden of these infections. This study was conducted to predict the spatial distribution of human seropositivity for Echinococcus species in Xiji County, Ningxia Hui Autonomous Region (NHAR), with the aim of identifying communities where targeted prevention and control efforts are required. METHODS: Bayesian geostatistical models with environmental and demographic covariates were developed to predict spatial variation in the risk of human seropositivity for Echinococcus granulosus (the cause of CE) and E. multilocularis (the cause of AE). Data were collected from three cross-sectional surveys of school children conducted in Xiji County in 2002-2003, 2006-2007 and 2012-2013. Environmental data were derived from high-resolution satellite images and meteorological data. RESULTS: The overall seroprevalence of E. granulosus and E. multilocularis was 33.4 and 12.2%, respectively, across the three surveys. Seropositivity for E. granulosus was significantly associated with summer and winter precipitation, landscape fragmentation variables and the extent of areas covered by forest, shrubland, water and bareland/artificial surfaces. Seropositivity for E. multilocularis was significantly associated with summer and winter precipitations, landscape fragmentation variables and the extent of shrubland and water bodies. Spatial correlation occurred over greater distances for E. granulosus than for E. multilocularis. The predictive maps showed that the risk of seropositivity for E. granulosus expanded across Xiji during the three surveys, while the risk of seropositivity for E. multilocularis became more confined in communities located in the south. CONCLUSIONS: The identification of high-risk areas for seropositivity for these parasites, and a better understanding of the role of the environment in determining the transmission dynamics of Echinococcus spp. may help to guide and monitor improvements in human echinococcosis control strategies by allowing targeted allocation of resources.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:In-Data-Review
[do] DOI:10.1186/s13071-018-2764-1

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[PMID]: 29523164
[Au] Autor:Wu Y; Li L; Zhu G; Li W; Zhang N; Li S; Yao G; Tian W; Fu B; Yin H; Zhu X; Yan H; Jia W
[Ad] Address:State Key Laboratory of Veterinary Etiological Biology/Key Laboratory of Veterinary Parasitology of Gansu Province/Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu Province, People's Republic of China.
[Ti] Title:Mitochondrial genome data confirm that yaks can serve as the intermediate host of Echinococcus canadensis (G10) on the Tibetan Plateau.
[So] Source:Parasit Vectors;11(1):166, 2018 Mar 09.
[Is] ISSN:1756-3305
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: Cervids used to be considered the only animal intermediate hosts of the G10 genotype of Echinococcus canadensis. Yaks are often herded in the Qinghai-Tibet Plateau, China, where echinococcosis remains prevalent. However, no E. canadensis G10 cases have been recorded in yaks until now. The aim of our study was to identify causative agents of echinococcosis in yaks in this region. METHODS: Total genomic DNA was extracted from the germinal layer of one hydatid using a Blood and Tissue Kit. Full-length mitochondrial (mt) cytochrome c oxidase subunit 1 (cox1) and NADH dehydrogenase subunit 1 (nad1) genes were amplified by PCR. All purified PCR products were directly sequenced in both directions. Then seven pairs of overlap primers were designed to amplify the entire mt genome sequence of a suspected E. canadensis G10 isolate. Phylogenetic analyses were performed based on concatenated nucleotides from the 12 protein-coding genes of mt genomes of Echinococcus species in a Bayesian framework using MrBayes v3.1 and implementing the GTR + I + G model. RESULTS: Hydatids were found in yaks (n = 129) when organs were inspected at the slaughterhouse in Maqu county, Gannan Tibetan Autonomous Prefecture, Gansu Province, China in October 2016. Of these, 33 (25.6%) harbored up to a dozen hydatid cysts. One cyst from each yak was characterized by sequencing its mitochondrial (mt) cox1 and nad1 genes. On the basis of these sequence data, 32 cysts were identified as Echinococcus granulosus (sensu stricto) (G1-G3) and the remaining one was identified as the G10 genotype of E. canadensis. Its mt genome was then fully sequenced and compared with that of the G10 genotype in GenBank (AB745463). Phylogenetic analysis using complete mt genomes confirmed the Chinese cyst as belonging to the G10 genotype. CONCLUSIONS: To our knowledge, this is the first report globally of E. canadensis (G10) from yaks in China, which suggests that the G10 genotype has a wider geographical distribution and broader host range than previously believed. This genotype has therefore potential risks to human health and animal husbandry.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180310
[Lr] Last revision date:180310
[St] Status:In-Data-Review
[do] DOI:10.1186/s13071-018-2684-0

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[PMID]: 29486175
[Au] Autor:Conchedda M; Caddori A; Caredda A; Capra S; Bortoletti G
[Ad] Address:Department of Life and Environmental Sciences, Biomedical Section, Cagliari University, Cittadella Universitaria di Monserrato, Strada Provinciale Monserrato-Sestu km 0.700, Monserrato, Cagliari, Italy. Electronic address: mconchedda@medicina.unica.it.
[Ti] Title:Degree of calcification and cyst activity in hepatic cystic echinococcosis in humans.
[So] Source:Acta Trop;182:135-143, 2018 Feb 24.
[Is] ISSN:1873-6254
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:To evaluate the relationship between cyst activity and calcification degree in cystic echinococcosis (CE) in humans, 99 hepatic cysts at successive stages of involution, surgically excised from 72 Sardinian patients, have been analyzed. Cysts were classified into 4 groups according to calcification extent: CALC 0 (no calcification); CALC 1 (scattered punctate calcifications); CALC 2 (large coarse segmental/partial calcifications); CALC 3 (complete or nearly complete circumferential ring of calcification up to thick wall of osseous consistency/calcified content of cyst). In addition the possible correlation with antibody response has been explored analyzing IgG1, IgG4 and IgE produced against somatic PSCAg. Results showed that calcification is not restricted to the inactive WHO cyst types CE4 and CE5, but occurs to a varying extent in all morphotypes of metacestode, from active classic unilocular or multivesicular cysts to the more complicated and highly degenerate stages, where cyst wall appears massively calcified. Prevalence of calcification increases with progression of cyst degenerative process, but is not synonymous with parasite inactivity and can be misleading as signs of calcification may coexist with still metabolically active cysts. On the contrary, detection of entirely firmly solidified content seems a reliable indication of cyst inactivity. IgG4 is the dominant isotype associated particularly with the evolutive phase. Positive rates and OD levels, higher in active vs inactive stages, are stable or increase slightly in weakly and moderately calcified cysts (CALC 1/CALC 2), compared to non-calcified ones (CALC 0), strongly decreasing in highly calcified forms (CALC 3). In conclusion, evaluation of calcification extent may be pertinent for staging CE, and immunological tests, particularly for IgG4, and IgE may help to better define cyst activity.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:Publisher

  4 / 15852 MEDLINE  
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[PMID]: 29320825
[Au] Autor:Kim HJ; Yong TS; Shin MH; Lee KJ; Park GM; Suvonkulov U; Kovalenko D; Yu HS
[Ad] Address:Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan 50612, Korea.
[Ti] Title:Practical Algorisms for PCR-RFLP-Based Genotyping of Echinococcus granulosus Sensu Lato.
[So] Source:Korean J Parasitol;55(6):679-684, 2017 Dec.
[Is] ISSN:1738-0006
[Cp] Country of publication:Korea (South)
[La] Language:eng
[Ab] Abstract:Echinococcus granulosus sensu lato (s.l.) is a causative agent of cystic echinococcosis or cystic hydatid disease in humans and domestic and wild animals. The disease is a serious health problem in countries associated with poverty and poor hygiene practices, particularly in livestock raising. We introduced a practical algorism for genotyping the parasite, which may be useful to many developing countries. To evaluate the efficiency of the algorism, we genotyped 3 unknown strains isolated from human patients. We found that unknowns 1 and 3 were included in G1, G2, and G3 genotypes group and unknown 2 was included in G4 genotype (Echinococcus equinus) according to the algorisms. We confirmed these results by sequencing the 3 unknown isolates cox1 and nad1 PCR products. In conclusion, these new algorisms are very fast genotype identification tools that are suitable for evaluating E. granulosus s.l. isolated from livestock or livestock holders, particularly in developing countries.
[Mh] MeSH terms primary: Algorithms
Echinococcosis/parasitology
Echinococcosis/veterinary
Echinococcus granulosus/genetics
Genotype
Genotyping Techniques/methods
Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length
[Mh] MeSH terms secundary: Animals
Animals, Domestic
Cyclooxygenase 1/genetics
Echinococcus granulosus/isolation & purification
Electron Transport Complex I/genetics
Humans
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:EC 1.14.99.1 (Cyclooxygenase 1); EC 1.6.5.3 (Electron Transport Complex I)
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[Js] Journal subset:IM
[Da] Date of entry for processing:180112
[St] Status:MEDLINE
[do] DOI:10.3347/kjp.2017.55.6.679

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[PMID]: 28456662
[Au] Autor:Kinkar L; Laurimäe T; Sharbatkhori M; Mirhendi H; Kia EB; Ponce-Gordo F; Andresiuk V; Simsek S; Lavikainen A; Irshadullah M; Umhang G; Oudni-M'rad M; Acosta-Jamett G; Rehbein S; Saarma U
[Ad] Address:Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 50410 Tartu, Estonia.
[Ti] Title:New mitogenome and nuclear evidence on the phylogeny and taxonomy of the highly zoonotic tapeworm Echinococcus granulosus sensu stricto.
[So] Source:Infect Genet Evol;52:52-58, 2017 Aug.
[Is] ISSN:1567-7257
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:Cystic echinococcosis, a zoonotic disease caused by Echinococcus granulosus sensu lato (s. l.), is a significant global public health concern. Echinococcus granulosus s. l. is currently divided into numerous genotypes (G1-G8 and G10) of which G1-G3 are the most frequently implicated genotypes in human infections. Although it has been suggested that G1-G3 could be regarded as a distinct species E. granulosus sensu stricto (s. s.), the evidence to support this is inconclusive. Most importantly, data from nuclear DNA that provide means to investigate the exchange of genetic material between G1-G3 is lacking as none of the published nuclear DNA studies have explicitly included G2 or G3. Moreover, the commonly used relatively short mtDNA sequences, including the complete cox1 gene, have not allowed unequivocal differentiation of genotypes G1-G3. Therefore, significantly longer mtDNA sequences are required to distinguish these genotypes with confidence. The main aim of this study was to evaluate the phylogenetic relations and taxonomy of genotypes G1-G3 using sequences of nearly complete mitogenomes (11,443bp) and three nuclear loci (2984bp). A total of 23 G1-G3 samples were analysed, originating from 5 intermediate host species in 10 countries. The mtDNA data demonstrate that genotypes G1 and G3 are distinct mitochondrial genotypes (separated by 37 mutations), whereas G2 is not a separate genotype or even a monophyletic cluster, but belongs to G3. Nuclear data revealed no genetic separation of G1 and G3, suggesting that these genotypes form a single species due to ongoing gene flow. We conclude that: (a) in the taxonomic sense, genotypes G1 and G3 can be treated as a single species E. granulosus s. s.; (b) genotypes G1 and G3 should be regarded as distinct genotypes only in the context of mitochondrial data; (c) we recommend excluding G2 from the genotype list.
[Mh] MeSH terms primary: Cell Nucleus/genetics
DNA, Helminth/genetics
Echinococcus granulosus/classification
Mitochondria/genetics
[Mh] MeSH terms secundary: Africa, Northern
Animals
Asia
Echinococcus granulosus/genetics
Echinococcus granulosus/isolation & purification
Echinococcus granulosus/metabolism
Europe
Genome, Mitochondrial
Genotype
Humans
Phylogeny
Phylogeography
South America
Zoonoses/parasitology
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (DNA, Helminth)
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[Js] Journal subset:IM
[Da] Date of entry for processing:170501
[St] Status:MEDLINE

  6 / 15852 MEDLINE  
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[PMID]: 29522097
[Au] Autor:Wadhawa V; Shah J; Doshi C; Ramani J; Lakhia K; Rathod D; Tavar R; Kothari J
[Ad] Address:Department of Cardiovascular and Thoracic Surgery, U.N. Mehta Institute of Cardiology and Research Center (Affiliated with B.J. Medical College), Ahmedabad, Gujarat, India.
[Ti] Title:Surgical overview of cardiac echinococcosis: a rare entity.
[So] Source:Interact Cardiovasc Thorac Surg;, 2018 Mar 07.
[Is] ISSN:1569-9285
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:OBJECTIVES: The purpose of this study was to describe our experience with the presentation and management of cardiac echinococcosis and the outcomes. METHODS: We performed a retrospective study from January 2012 to September 2017 in 10 patients operated on for cardiac echinococcosis. There were 6 men and 4 women; the age range was 17-55 years (mean age, 35.9 ± 12.04 years). Among the 10 patients, 3 had multiple cysts and of the 7 patients with a solitary cyst, 5 cysts were in the left ventricle, 1 was in the right ventricle and 1 was in the interventricular septum. All patients were evaluated with electrocardiography, transthoracic echocardiography, computed tomography/magnetic resonance imaging of the thorax, ultrasound examinations of the abdominal organs, haemagglutination tests and histopathological examination of the cyst. RESULTS: Nine operations were performed using cardiopulmonary bypass. One patient with a pericardial cyst was operated on with a beating heart with cystectomy and partial pericardiectomy. Preoperatively, all patients received albendazole for 2 weeks except for 1 patient who had an emergency operation. Albendazole was continued postoperatively in all patients for 12 weeks. There were no postoperative complications. No recurrences have been observed so far. CONCLUSIONS: Cardiac echinococcosis is an infrequently encountered entity, but with clinical suspicion and early diagnosis it can be successfully managed with good outcomes.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:Publisher
[do] DOI:10.1093/icvts/ivy053

  7 / 15852 MEDLINE  
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[PMID]: 29344690
[Au] Autor:Wilhelm TJ; Post S
[Ad] Address:Chirurgische Klinik, Universitätsklinikum Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland. torsten.wilhelm@umm.de.
[Ti] Title:Globalisierung: abdominalchirurgische Herausforderungen bei Patienten mit Migrationshintergrund. [Globalization: challenges in abdominal surgery for migrants and refugees].
[So] Source:Chirurg;89(3):197-204, 2018 Mar.
[Is] ISSN:1433-0385
[Cp] Country of publication:Germany
[La] Language:ger
[Ab] Abstract:The increasing number of refugees, migrants and international travelers influences the surgical spectrum of abdominal diseases. The aim of this review is to familiarize surgeons with specific diseases which are endemic in the patients' countries of origin and are likely to be diagnosed with increasing incidence in Germany. Low levels of hygiene in the countries of origin or refugee camps is associated with a high incidence of numerous infections, such as helminth infections, typhoid fever or amoebiasis, which if untreated can cause surgical emergencies. Historically, some of them were common in Germany but have been more or less eradicated because of the high socioeconomic standard. Echinococcosis and Chagas disease are frequently treated surgically while schistosomiasis can mimic intestinal cancer. Abdominal tuberculosis presents in a variety of abdominal pathologies and frequently causes diagnostic uncertainty. Sigmoid volvulus has a very low incidence among Europeans, but is one of the most common abdominal surgical conditions of adults in endemic countries. The number of patients who eventually undergo surgery for these conditions might be relatively low; however, surgeons must be aware of them and consider them as differential diagnoses in refugees and migrants with acute or chronic abdominal symptoms.
[Pt] Publication type:ENGLISH ABSTRACT; JOURNAL ARTICLE; REVIEW
[Em] Entry month:1801
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:In-Data-Review
[do] DOI:10.1007/s00104-017-0584-z

  8 / 15852 MEDLINE  
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[PMID]: 29517868
[Au] Autor:Halleux D; Juriens I; Delwaide J; Frippiat F; Léonard P; Bletard N; Detry O
[Ad] Address:Service de Chirurgie Abdominale et Transplantation, CHU Sart Tilman, Liège, Belgique.
[Ti] Title:Prise en charge multidisciplinaire d'une volumineuse hydatidose hépatique. [Multidisciplinary management of a giant hepatic hydatidosis].
[So] Source:Rev Med Liege;73(2):65-71, 2018 Feb.
[Is] ISSN:0370-629X
[Cp] Country of publication:Belgium
[La] Language:fre
[Ab] Abstract:Cystic echinococcosis or hydatidosis, is a zoonosis caused by larval stages of Echinococcus granulosus that can be encountered in Belgium in patients originating from endemic countries. The liver is the most commonly affected organ. In this paper, the authors describe the multidisciplinary management of this pathology based on the clinical case of a patient suffering from a 28 cm cystic echinococcosis treated by combination of albendazole and liver resection. Several treatment options are described in the literature although there is currently no clear consensus on the management of this condition.
[Pt] Publication type:ENGLISH ABSTRACT; PRACTICE GUIDELINE
[Em] Entry month:1803
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[St] Status:In-Data-Review

  9 / 15852 MEDLINE  
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[PMID]: 29516112
[Au] Autor:Arslan M; Gulek B; Ogur HU; Adamhasan F
[Ad] Address:Department of Radiology, Faculty of Medicine, Pamukkale University, Camlaralti mah. 20100, Kinikli, Denizli, Turkey. dr.marslan@hotmail.com.
[Ti] Title:Primary hydatid cyst in the posterior thigh, and its percutaneous treatment.
[So] Source:Skeletal Radiol;, 2018 Mar 07.
[Is] ISSN:1432-2161
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:Hydatid cyst (echinococcosis) is an endemic parasitic disease, usually encountered in those dealing with agriculture and livestock. The most frequently affected organs are the liver and the lungs. The disease is very rarely encountered in soft tissues. Diagnosing a soft-tissue hydatid cyst may be challenging unless the mass possesses the characteristic features of a hydatid cyst. Soft-tissue hydatid cysts may be treated percutaneously, just like those encountered in the liver. In this case report, we present the radiological findings and modified percutaneous aspiration-injection-reaspiration (PAIR) treatment of a hydatid cyst located in the posterior aspect of the thigh.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[St] Status:Publisher
[do] DOI:10.1007/s00256-018-2910-z

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[PMID]: 29253150
[Au] Autor:Díaz Á
[Ad] Address:Cátedra de Inmunología, Departamento de Biociencias (Facultad de Química) e Instituto de Química Biológica (Facultad de Ciencias), Universidad de la República, Montevideo, Uruguay.
[Ti] Title:Immunology of cystic echinococcosis (hydatid disease).
[So] Source:Br Med Bull;124(1):121-133, 2017 Dec 01.
[Is] ISSN:1471-8391
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Background: The neglected disease cystic echinococcosis is caused by larval Echinococcus granulosus flatworms, which form bladder-like hydatid cysts in liver, lungs, and other organs. Sources of data: Published literature. Areas of agreement: Establishing larvae are susceptible to antibody-dependent killing, as attested by successful animal vaccination, whereas once established they are partially protected by the so-called laminated layer. Host responses are Th2 dominated, with a Th1 component. Diagnostic antigens from cyst fluid are known, but responses appear absent in one-fifth of patients. Areas of controversy: Is evasion mainly based on induction of Th2 or regulatory responses by the parasite? Growing points: The parasite induces regulatory responses. The laminated layer has immune-regulatory properties. Areas timely for developing research: Develop tools for functional genomics; characterize immunologically interesting proteins suggested by genomic information; analyse infection in broader context of granulomatous responses; identify molecules secreted/excreted by intact larvae/cysts towards their outside, including diffusible immune-regulators.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1712
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[St] Status:In-Process
[do] DOI:10.1093/bmb/ldx033


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