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[PMID]:28818650
[Au] Autor:González-Fernández J; Rivas L; Luque-Ortega JR; Núñez-Ramírez R; Campioli P; Gárate T; Perteguer MJ; Daschner A; Cuéllar C
[Ad] Endereço:Departamento de Parasitología, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain. Electronic address: quintas_copo@hotmail.com.
[Ti] Título:Recombinant vs native Anisakis haemoglobin (Ani s 13): Its appraisal as a new gold standard for the diagnosis of allergy.
[So] Source:Exp Parasitol;181:119-129, 2017 Oct.
[Is] ISSN:1090-2449
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Recombinant allergens are currently the best option for serodiagnosis of human anisakiasis in terms of sensitivity and specificity. However, previous reports showed high rates of anisakiasis patients who were negative to Ani s 7 and especially to Ani s 1. Recently, Anisakis haemoglobin was described as a major allergen (Ani s 13). Although Ani s 13 belongs to a conserved protein family, it seems not to be a cross-reacting antigen because of the absence of IgE recognition against Ascaris haemoglobin in Anisakis patients. The aim of this study is to develop a more sensitive and specific diagnosis tool for Anisakis based on the recently discovered allergen Ani s 13. We obtained and purified recombinant Anisakis haemoglobin (rAni s 13) and the native form (nAni s 13). The recognition of both recombinant and native haemoglobins by anti-haemoglobin IgE from patients' sera was assessed by indirect ELISA and immunoblotting using 43 Anisakis sensitised patients and 44 non-Anisakis sensitised patients. Native Ani s 13 was also treated with periodate to study if oxidation of glycans destroys antibody binding. Furthermore, it was structurally characterised by negative staining electron microscopy and analytical ultracentrifugation. Recombinant Ani s 13 was only recognised by four patients with gastro-allergic anisakiasis (GAA) and immunoblotting analyses showed no bands. However, nAni s 13 was detected by 72.1% of Anisakis sensitised patients measured by indirect ELISA. Particularly, 18 (90%) out of 20 GAA patients were positive. Tetramers and octamers were the most abundant homomers of nAni s 13 but octamers had higher content of bound heme. None of the non-Anisakis sensitised patients were positive. Combined use of purified native form of Ani s 13 with current gold standards would improve the sensitivity and specificity for diagnosing anisakiasis.
[Mh] Termos MeSH primário: Alérgenos/genética
Anisakis/química
Hemoglobinas/normas
Hipersensibilidade/diagnóstico
[Mh] Termos MeSH secundário: Alérgenos/imunologia
Alérgenos/isolamento & purificação
Animais
Anisakis/genética
Anisakis/imunologia
Ascaris/imunologia
Sequência de Bases
Reações Cruzadas
DNA Complementar/química
Feminino
Hemoglobinas/genética
Hemoglobinas/imunologia
Hemoglobinas/isolamento & purificação
Seres Humanos
Immunoblotting
Imunoglobulina E/sangue
Imunoglobulina G/sangue
Camundongos
Camundongos Endogâmicos BALB C
Proteínas Recombinantes/genética
Proteínas Recombinantes/isolamento & purificação
Proteínas Recombinantes/normas
Alinhamento de Sequência
Ultracentrifugação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Allergens); 0 (DNA, Complementary); 0 (Hemoglobins); 0 (Immunoglobulin G); 0 (Recombinant Proteins); 37341-29-0 (Immunoglobulin E)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170819
[St] Status:MEDLINE


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[PMID]:28379956
[Au] Autor:Steinbaum L; Kwong LH; Ercumen A; Negash MS; Lovely AJ; Njenga SM; Boehm AB; Pickering AJ; Nelson KL
[Ad] Endereço:Civil and Environmental Engineering, Stanford University, Stanford, California, United States of America.
[Ti] Título:Detecting and enumerating soil-transmitted helminth eggs in soil: New method development and results from field testing in Kenya and Bangladesh.
[So] Source:PLoS Negl Trop Dis;11(4):e0005522, 2017 Apr.
[Is] ISSN:1935-2735
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Globally, about 1.5 billion people are infected with at least one species of soil-transmitted helminth (STH). Soil is a critical environmental reservoir of STH, yet there is no standard method for detecting STH eggs in soil. We developed a field method for enumerating STH eggs in soil and tested the method in Bangladesh and Kenya. The US Environmental Protection Agency (EPA) method for enumerating Ascaris eggs in biosolids was modified through a series of recovery efficiency experiments; we seeded soil samples with a known number of Ascaris suum eggs and assessed the effect of protocol modifications on egg recovery. We found the use of 1% 7X as a surfactant compared to 0.1% Tween 80 significantly improved recovery efficiency (two-sided t-test, t = 5.03, p = 0.007) while other protocol modifications-including different agitation and flotation methods-did not have a significant impact. Soil texture affected the egg recovery efficiency; sandy samples resulted in higher recovery compared to loamy samples processed using the same method (two-sided t-test, t = 2.56, p = 0.083). We documented a recovery efficiency of 73% for the final improved method using loamy soil in the lab. To field test the improved method, we processed soil samples from 100 households in Bangladesh and 100 households in Kenya from June to November 2015. The prevalence of any STH (Ascaris, Trichuris or hookworm) egg in soil was 78% in Bangladesh and 37% in Kenya. The median concentration of STH eggs in soil in positive samples was 0.59 eggs/g dry soil in Bangladesh and 0.15 eggs/g dry soil in Kenya. The prevalence of STH eggs in soil was significantly higher in Bangladesh than Kenya (chi-square, χ2 = 34.39, p < 0.001) as was the concentration (Mann-Whitney, z = 7.10, p < 0.001). This new method allows for detecting STH eggs in soil in low-resource settings and could be used for standardizing soil STH detection globally.
[Mh] Termos MeSH primário: Ancylostomatoidea/isolamento & purificação
Ascaris/isolamento & purificação
Solo/parasitologia
Trichuris/isolamento & purificação
[Mh] Termos MeSH secundário: Animais
Ascaríase/epidemiologia
Ascaríase/parasitologia
Bangladesh/epidemiologia
Infecções por Uncinaria/epidemiologia
Infecções por Uncinaria/parasitologia
Seres Humanos
Quênia/epidemiologia
Microscopia
Contagem de Ovos de Parasitas
Prevalência
Tricuríase/epidemiologia
Tricuríase/parasitologia
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170406
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pntd.0005522


  3 / 2548 MEDLINE  
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Berne, Maria Elisabeth Aires
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[PMID]:28188768
[Au] Autor:Santos PC; Telmo PL; Lehmann LM; Lorenzi C; Hirsch C; Mattos GT; Klafke GB; Berne MEA; Gonçalves CV; Scaini CJ
[Ad] Endereço:Laboratory of Parasitology, Faculty of Medicine-FAMED, Area Interdisciplinary Biomedical Sciences (AICB) Federal University of Rio Grande-FURG Rio Grande, Rio Grande do Sul, Brazil. Electronic address: paulavet10@hotmail.com.
[Ti] Título:Frequency of Toxocara spp. antibodies in umbilical cords of newborns attended atthe University Hospital in Southern Brazil and factors associated with infection.
[So] Source:Acta Trop;170:43-47, 2017 Jun.
[Is] ISSN:1873-6254
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Toxocariasis is a neglected and geographically widespread parasitic disease. The detection of specific antibodies associated with this disease is required to confirm its clinical diagnosis and to aid in prevention. Although helminth infection during pregnancy can promote foetal immune responses with long-term effects, specific information regarding the risk of Toxocara spp. infection to the human foetus during pregnancy is lacking. Therefore, the present study aimed to investigate the frequency of antibodies against Toxocara spp. in umbilical cord serum samples to determine the neonatal risk factors associated with Toxocara spp. infection. A cross-sectional study of the frequency of specific antibodies against Toxocara spp. was performed on umbilical cord samples of 280 neonates. A cord blood sample was obtained from each newborn after parturition, and serum samples were examined by enzyme-linked immunoassay. Epidemiological data were obtained through a questionnaire regarding obstetric history (abortion history, premature birthhistory, and pregnancy and birth numbers), general aspects (animal contact anddiet) and socio-economic factors. The frequency of anti-Toxocara spp. IgG antibodies in the umbilical cords of neonates was 20% in serum pre-adsorbed with Ascaris spp. antigen. Family income and dog ownership were considered risk factors associated with infection. No association was found between reproductive disorders and Toxocara seropositivity. The 20% frequency rate of anti-Toxocara spp. IgG antibodies in sera from umbilical cords of newborns can be related to IgG binding at the maternal-foetal interface, requiring greater care during pregnancy. Anti-Toxocara IgM and IgE antibodies no were found in umbilical cord serum samples, indicating that no vertical transmission of these parasites occurred in this population. Studies regarding antibodies against Toxocara spp. in umbilical cord sera are important for determining neonatal exposure to these parasites.
[Mh] Termos MeSH primário: Anticorpos Anti-Helmínticos/sangue
Toxocara/imunologia
Toxocaríase/epidemiologia
Cordão Umbilical/imunologia
[Mh] Termos MeSH secundário: Animais
Anticorpos Anti-Idiotípicos/sangue
Ascaris/imunologia
Brasil/epidemiologia
Estudos Transversais
Cães
Feminino
Hospitais Universitários
Seres Humanos
Recém-Nascido
Animais de Estimação
Gravidez
Fatores de Risco
Estudos Soroepidemiológicos
Fatores Socioeconômicos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Anti-Idiotypic); 0 (Antibodies, Helminth); 0 (anti-IgM)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171002
[Lr] Data última revisão:
171002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170212
[St] Status:MEDLINE


  4 / 2548 MEDLINE  
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[PMID]:28077590
[Au] Autor:Jesudoss Chelladurai J; Murphy K; Snobl T; Bader C; West C; Thompson K; Brewer MT
[Ad] Endereço:Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames.
[Ti] Título:Molecular Epidemiology of Ascaris Infection Among Pigs in Iowa.
[So] Source:J Infect Dis;215(1):131-138, 2017 Jan 01.
[Is] ISSN:1537-6613
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ascaris is a large roundworm parasite that infects humans and pigs throughout the world. Molecular markers have been used to study parasite transmission in Ascaris-endemic and -nonendemic regions of the world. In the United States, ascariasis still persists in commercial swine and has been designated a neglected disease of poverty in humans. However, relatively few data are available for evaluation of zoonotic transmission. In the present study, we obtained adult worms from abattoirs and characterized each worm on the basis of the gene encoding nuclear internal transcribed sequence (ITS) and mitochondrial cox1 Restriction fragment-length polymorphism analysis of ITS revealed swine, human, and hybrid genotypes. cox1 sequences were compared to all complete sequences available in GenBank, and haplotype analysis demonstrated 92 haplotypes worldwide. Sequences from the parasites in this study represented 10 haplotypes, including 6 new haplotypes that have not been previously described. Our results indicate that anthropozoonotic transmission has occurred in the past, resulting in the presence of human genotypes in pigs and supporting further investigation of zoonotic Ascaris transmission in the United States.
[Mh] Termos MeSH primário: Ascaríase/veterinária
Ascaris/genética
Doenças dos Suínos/epidemiologia
Doenças dos Suínos/parasitologia
[Mh] Termos MeSH secundário: Adulto
Animais
Ascaríase/epidemiologia
Ascaríase/parasitologia
Ascaríase/transmissão
Ciclo-Oxigenase 1/genética
DNA de Helmintos/genética
DNA Espaçador Ribossômico/genética
Genótipo
Saúde Global
Haplótipos
Seres Humanos
Iowa/epidemiologia
Filogenia
Suínos
Doenças dos Suínos/transmissão
Zoonoses/epidemiologia
Zoonoses/parasitologia
Zoonoses/transmissão
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Helminth); 0 (DNA, Ribosomal Spacer); EC 1.14.99.1 (Cyclooxygenase 1)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170606
[Lr] Data última revisão:
170606
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170113
[St] Status:MEDLINE
[do] DOI:10.1093/infdis/jiw507


  5 / 2548 MEDLINE  
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[PMID]:28074315
[Au] Autor:Strkolcová G; Goldová M; Bocková E; Mojzisová J
[Ad] Endereço:Department of Epizootiology and Parasitology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81, Kosice, Slovak Republic. gabriela.strkolcova@uvlf.sk.
[Ti] Título:The roundworm Strongyloides stercoralis in children, dogs, and soil inside and outside a segregated settlement in Eastern Slovakia: frequent but hardly detectable parasite.
[So] Source:Parasitol Res;116(3):891-900, 2017 Mar.
[Is] ISSN:1432-1955
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:A comparative study was carried out to evaluate the Strongyloides stercoralis infections in children and dogs inside and outside the segregated settlement in Medzev, Eastern Slovakia, and a survey of the soil within the settlement was included. Applying the Koga agar plate (KAP) culture method and microscopy examination of stool samples collected from 60 Roma and 21 nonRoma children, no larvae of S. stercoralis were detected but eggs of three nematodes (Ascaris lumbricoides, Trichuris trichiura, and Enterobius vermicularis) and cysts of two protozoan endoparasites (Giardia duodenalis and Cryptosporidium spp.) were often found. However, immunoenzymatic assay (ELISA) for the evidence of IgG antibodies against S. stercoralis showed 33.3% seroprevalence in Roma children and 23.8% prevalence in children from the majority population, attending the same school. Eosinophilia was regularly present in children with exclusive infection of S. stercoralis (eight cases) as well as in individuals suffering from mixed infections of S. stercoralis and some of the above listed parasites (16 cases); high eosinophil counts sometimes, but not always, occurred in parasitized children lacking S. stercoralis antibodies. A comparison of S. stercoralis in dogs from the settlement (40 dogs) and from a distant dog shelter (20 dogs) did not reveal remarkable differences: the direct microscopy of faecal samples revealed rhabditiform larvae in 13.3% of the dogs from the settlement (4/30) and in 10.0% of the dogs from the shelter (2/20). Out of blood samples collected from the second dog group, 55% of the dogs contained antibodies against S. stercoralis. In the soil collected from 14 various locations within the settlement, S. stercoralis larvae were observed in two samples (14.3%); however, 13 samples (92.9%) were positive for human or dog endoparasites of the genera Ancylostoma, Ascaris, Toxocara, Toxascaris, Trichuris, and Hymenolepis.
[Mh] Termos MeSH primário: Doenças do Cão/parasitologia
Solo/parasitologia
Strongyloides stercoralis/isolamento & purificação
Estrongiloidíase/parasitologia
[Mh] Termos MeSH secundário: Ágar
Ancylostoma/genética
Ancylostoma/isolamento & purificação
Ancylostoma/fisiologia
Animais
Ascaris
Ascaris lumbricoides/genética
Ascaris lumbricoides/isolamento & purificação
Ascaris lumbricoides/fisiologia
Criança
Pré-Escolar
Coinfecção
Doenças do Cão/epidemiologia
Cães
Enterobius
Ensaio de Imunoadsorção Enzimática
Fezes/parasitologia
Feminino
Giardia lamblia/genética
Giardia lamblia/isolamento & purificação
Giardia lamblia/fisiologia
Seres Humanos
Masculino
Prevalência
Estudos Soroepidemiológicos
Eslováquia/epidemiologia
Strongyloides stercoralis/classificação
Strongyloides stercoralis/genética
Estrongiloidíase/epidemiologia
Toxocara/genética
Toxocara/isolamento & purificação
Toxocara/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 9002-18-0 (Agar)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170112
[St] Status:MEDLINE
[do] DOI:10.1007/s00436-016-5362-1


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[PMID]:28003150
[Au] Autor:Gazzinelli-Guimarães PH; de Freitas LF; Gazzinelli-Guimarães AC; Coelho F; Barbosa FS; Nogueira D; Amorim C; Dhom-Lemos LC; Oliveira LM; da Silveira AB; da Fonseca FG; Bueno LL; Fujiwara RT
[Ad] Endereço:Department of Parasitology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Brazil.
[Ti] Título:Concomitant helminth infection downmodulates the Vaccinia virus-specific immune response and potentiates virus-associated pathology.
[So] Source:Int J Parasitol;47(1):1-10, 2017 Jan.
[Is] ISSN:1879-0135
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this work was to elucidate the immunopathological mechanisms of how helminths may influence the course of a viral infection, using a murine model. Severe virulence, a relevant increase in the virus titres in the lung and a higher mortality rate were observed in Ascaris and Vaccinia virus (VACV) co-infected mice, compared with VACV mono-infected mice. Immunopathological analysis suggested that the ablation of CD8 T cells, the marked reduction of circulating CD4 T cells producing IFN-γ, and the robust pulmonary inflammation were associated with the increase of morbidity/mortality in co-infection and subsequently with the negative impact of concomitant pulmonary ascariasis and respiratory VACV infection for the host. On the other hand, when evaluating the impact of the co-infection on the parasitic burden, co-infected mice presented a marked decrease in the total number of migrating Ascaris lung-stage larvae in comparison with Ascaris mono-infection. Taken together, our major findings suggest that Ascaris and VACV co-infection may potentiate the virus-associated pathology by the downmodulation of the VACV-specific immune response. Moreover, this study provides new evidence of how helminth parasites may influence the course of a coincident viral infection.
[Mh] Termos MeSH primário: Ascaríase/virologia
Ascaris/imunologia
Coinfecção/imunologia
Pneumonia/parasitologia
Vírus Vaccinia/imunologia
Vaccinia/etiologia
[Mh] Termos MeSH secundário: Animais
Ascaríase/imunologia
Linfócitos T CD8-Positivos/imunologia
Coinfecção/parasitologia
Coinfecção/virologia
Citocinas/imunologia
Modelos Animais de Doenças
Feminino
Interferon gama/imunologia
Larva/parasitologia
Pulmão/imunologia
Pulmão/parasitologia
Pulmão/patologia
Pulmão/virologia
Camundongos
Camundongos Endogâmicos BALB C
Pneumonia/imunologia
Pneumonia/virologia
Suínos
Vaccinia/imunologia
Vaccinia/patologia
Vaccinia/virologia
Carga Viral
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cytokines); 0 (IFNG protein, mouse); 82115-62-6 (Interferon-gamma)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170731
[Lr] Data última revisão:
170731
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161223
[St] Status:MEDLINE


  7 / 2548 MEDLINE  
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[PMID]:27818330
[Au] Autor:Ali SR; Mehta AC
[Ad] Endereço:Department of Critical Care Medicine, Bombay Hospital, Indore, India.
[Ti] Título:Alive in the Airways: Live Endobronchial Foreign Bodies.
[So] Source:Chest;151(2):481-491, 2017 Feb.
[Is] ISSN:1931-3543
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Aspiration of a foreign body into the lower airways is a common occurrence and can cause significant morbidity and mortality in humans. Most foreign bodies of the tracheobronchial tree are inanimate. However, the medical literature includes reports of live foreign bodies in the airways. Fish, leeches, and roundworms are the most common live foreign bodies of the lower airways. Fishermen are more prone to experience a live fish aspiration, whereas substandard conditions may expose individuals to leech and roundworm infestations. The dangers of and the approaches to the management of these foreign bodies differ from those associated with aspirated inanimate objects. The focus of this review of the medical literature was on live foreign body aspiration and its management.
[Mh] Termos MeSH primário: Obstrução das Vias Respiratórias/cirurgia
Brônquios/cirurgia
Broncoscopia
Peixes
Corpos Estranhos/cirurgia
Laringe/cirurgia
Traqueia/cirurgia
Traqueostomia
[Mh] Termos MeSH secundário: Obstrução das Vias Respiratórias/etiologia
Animais
Ascaris
Corpos Estranhos/complicações
Seres Humanos
Sanguessugas
Aspiração Respiratória
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170524
[Lr] Data última revisão:
170524
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:161108
[St] Status:MEDLINE


  8 / 2548 MEDLINE  
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[PMID]:27959875
[Au] Autor:Dey D; Ridwanul Haque AT; Kabir B; Ubaid SF
[Ad] Endereço:Water, Sanitation and Hygiene, BRAC, 8th floor, BRAC Centre, 75, Mohakhali, Dhaka 1212, Bangladesh E-mail: bijoybmb@gmail.com.
[Ti] Título:Fecal indicator and Ascaris removal from double pit latrine content.
[So] Source:J Water Health;14(6):972-979, 2016 Dec.
[Is] ISSN:1477-8920
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Since May 2006, the BRAC Water, Sanitation and Hygiene (WASH) Programme in Bangladesh has enabled more than 30 million people to achieve hygienic sanitation, contributing to an increase in sanitation coverage from 33 to 83% in programme areas and rapid progress towards universal access. In rural areas, most families have single pit latrines that need to be emptied when full. Since 2007, BRAC has promoted the use of hygienic double-pit latrines. Use of double-pit latrines, where appropriate, is also recommended in the Bangladeshi Draft National Water Supply and Sanitation Strategy. More than 800,000 double-pit latrines are in use in BRAC WASH areas, delaying the need for emptying and allowing time for the fecal matter to decompose while the resting pit is sealed. This paper focuses on a study undertaken by BRAC WASH to treat and safely use fecal material from double pit latrines as an organic fertilizer for rice and other crops. The study investigated the removal of pathogens from pit waste through simple solar drying and conducted analysis on nutrient properties of fecal sludge. The study showed a significant positive impact on developing organic fertilizer from fecal sludge.
[Mh] Termos MeSH primário: Ascaris/isolamento & purificação
Fezes/química
Fertilizantes/análise
Esgotos/análise
Esgotos/parasitologia
Sanitários Públicos
[Mh] Termos MeSH secundário: Animais
Bangladesh
Fezes/parasitologia
Luz Solar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fertilizers); 0 (Sewage)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170323
[Lr] Data última revisão:
170323
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161214
[St] Status:MEDLINE


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[PMID]:27923048
[Au] Autor:Amoah ID; Abubakari A; Stenström TA; Abaidoo RC; Seidu R
[Ad] Endereço:Institute for Water and Wastewater Technology, Durban University of Technology, Durban, South Africa.
[Ti] Título:Contribution of Wastewater Irrigation to Soil Transmitted Helminths Infection among Vegetable Farmers in Kumasi, Ghana.
[So] Source:PLoS Negl Trop Dis;10(12):e0005161, 2016 Dec.
[Is] ISSN:1935-2735
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Wastewater irrigation is associated with several benefits but can also lead to significant health risks. The health risk for contracting infections from Soil Transmitted Helminths (STHs) among farmers has mainly been assessed indirectly through measured quantities in the wastewater or on the crops alone and only on a limited scale through epidemiological assessments. In this study we broadened the concept of infection risks in the exposure assessments by measurements of the concentration of STHs both in wastewater used for irrigation and the soil, as well as the actual load of STHs ova in the stool of farmers and their family members (165 and 127 in the wet and dry seasons respectively) and a control group of non-farmers (100 and 52 in the wet and dry seasons, respectively). Odds ratios were calculated for exposure and non-exposure to wastewater irrigation. The results obtained indicate positive correlation between STH concentrations in irrigation water/soil and STHs ova as measured in the stool of the exposed farmer population. The correlations are based on reinfection during a 3 months period after prior confirmed deworming. Farmers and family members exposed to irrigation water were three times more likely as compared to the control group of non-farmers to be infected with Ascaris (OR = 3.9, 95% CI, 1.15-13.86) and hookworm (OR = 3.07, 95% CI, 0.87-10.82). This study therefore contributes to the evidence-based conclusion that wastewater irrigation contributes to a higher incidence of STHs infection for farmers exposed annually, with higher odds of infection in the wet season.
[Mh] Termos MeSH primário: Irrigação Agrícola
Ascaríase/etiologia
Ascaríase/transmissão
Fazendeiros
Fezes/parasitologia
Infecções por Uncinaria/etiologia
Infecções por Uncinaria/transmissão
Solo/parasitologia
Águas Residuais/parasitologia
[Mh] Termos MeSH secundário: Agricultura/métodos
Agricultura/normas
Ancylostomatoidea/isolamento & purificação
Animais
Ascaríase/epidemiologia
Ascaríase/parasitologia
Ascaris/isolamento & purificação
Produtos Agrícolas
Família
Gana/epidemiologia
Infecções por Uncinaria/epidemiologia
Infecções por Uncinaria/parasitologia
Seres Humanos
Razão de Chances
Estações do Ano
Verduras
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 0 (Waste Water)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161207
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pntd.0005161


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[PMID]:27756454
[Au] Autor:Truscott JE; Turner HC; Farrell SH; Anderson RM
[Ad] Endereço:London Centre for Neglected Tropical Disease Research, London, United Kingdom; School of Public Health, Imperial College London, London, United Kingdom.
[Ti] Título:Soil-Transmitted Helminths: Mathematical Models of Transmission, the Impact of Mass Drug Administration and Transmission Elimination Criteria.
[So] Source:Adv Parasitol;94:133-198, 2016.
[Is] ISSN:2163-6079
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Infections caused by soil-transmitted helminthias (STHs) affect over a billion people worldwide, causing anaemia and having a large social and economic impact through poor educational outcomes. They are identified in the World Health Organization (WHO) 2020 goals for neglected tropical diseases as a target for renewed effort to ameliorate their global public health burden through mass drug administration (MDA) and water and hygiene improvement. In this chapter, we review the underlying biology and epidemiology of the three causative intestinal nematode species that are mostly considered under the STH umbrella term. We review efforts to model the transmission cycle of these helminths in populations and the effects of preventative chemotherapy on their control and elimination. Recent modelling shows that the different epidemiological characteristics of the parasitic nematode species that make up the STH group can lead to quite distinct responses to any given form of MDA. When connected with models of treatment cost-effectiveness, these models are potentially a powerful tool for informing public policy. A number of shortcomings are identified; lack of critical types of data and poor understanding of diagnostic sensitivities hamper efforts to test and hence improve models.
[Mh] Termos MeSH primário: Anti-Helmínticos/administração & dosagem
Helmintíase/transmissão
Helmintos/fisiologia
Modelos Teóricos
Solo/parasitologia
[Mh] Termos MeSH secundário: Ancylostomatoidea/fisiologia
Animais
Ascaris/fisiologia
Análise Custo-Benefício
Helmintíase/tratamento farmacológico
Helmintíase/epidemiologia
Helmintíase/prevenção & controle
Helmintos/efeitos dos fármacos
Seres Humanos
Saúde Pública/economia
Trichuris/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; REVIEW
[Nm] Nome de substância:
0 (Anthelmintics); 0 (Soil)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161021
[St] Status:MEDLINE



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