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[PMID]:28508164
[Au] Autor:Silva LPC; Ferraz CM; Aguiar AR; Araújo JV; Ribeiro SR; Rossi DG; Mendes LQ; Pereira FEL; Moreira NIB; Braga FR
[Ad] Endereço:Department of Parasitology, University of Vila Velha-ES, Vila Velha, ES, Brazil.
[Ti] Título:Viability of Strongyloides venezuelensis eggs and larvae in vermiculite containing the fungus Duddingtonia flagrans.
[So] Source:Parasitol Res;116(7):2047-2051, 2017 Jul.
[Is] ISSN:1432-1955
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Strongyloidiasis is the most clinically important disease among the infections caused by geohelminths, seeing that this parasite can cause autoinfection. The use of nematophagous fungi like Duddingtonia flagrans, that have predation action on eggs and infecciososas forms of helminths, emerges as an alternative method for environmental control. For this reason, analyzing the viability of larvae and eggs of Strongyloides venezuelensis and the action of Duddingtonia flagrans AC001 in vermiculite, as well as the action of the nematophagous fungi in different growth stages, is important to elaborate and define the best culture conditions that favor the activity of the fungus. Two different growth conditions were applied: both eggs and AC001 fungi were added at the same time to the vermiculite (assay A) and the addition of eggs after the growth of the AC001 fungi in the vermiculite (assay B). To recover the L larvae, the Baermann-Moraes method was applied, followed by the counting of L dead and alive. At last, it was observed that the vermiculite enriched with organic material is an adequate culture medium not only for the growth of the S. venezuelensis but also for the growth of the D. flagrans fungus, being therefore, a satisfactory culture medium for tests of viability and predatory action of this fungus. It was also observed that the activity of the AC001 fungus is greater when it is growing concomitantly with the eggs, in other words, when it is in the adaptation phase.
[Mh] Termos MeSH primário: Silicatos de Alumínio
Duddingtonia/fisiologia
Óvulo/fisiologia
Strongyloides/fisiologia
[Mh] Termos MeSH secundário: Animais
Fezes
Larva/microbiologia
Larva/fisiologia
Controle Biológico de Vetores/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aluminum Silicates); 1318-00-9 (vermiculite)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171101
[Lr] Data última revisão:
171101
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170517
[St] Status:MEDLINE
[do] DOI:10.1007/s00436-017-5502-2


  2 / 929 MEDLINE  
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[PMID]:28505198
[Au] Autor:Kearns TM; Currie BJ; Cheng AC; McCarthy J; Carapetis JR; Holt DC; Page W; Shield J; Gundjirryirr R; Mulholland E; Ward L; Andrews RM
[Ad] Endereço:Menzies School of Health Research, Charles Darwin University, Darwin, Australia.
[Ti] Título:Strongyloides seroprevalence before and after an ivermectin mass drug administration in a remote Australian Aboriginal community.
[So] Source:PLoS Negl Trop Dis;11(5):e0005607, 2017 May.
[Is] ISSN:1935-2735
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Strongyloides seroprevalence is hyper-endemic in many Australian Aboriginal and Torres Strait Islander communities, ranging from 35-60%. We report the impact on Strongyloides seroprevalence after two oral ivermectin mass drug administrations (MDAs) delivered 12 months apart in a remote Australian Aboriginal community. METHODS: Utilizing a before and after study design, we measured Strongyloides seroprevalence through population census with sequential MDAs at baseline and month 12. Surveys at months 6 and 18 determined changes in serostatus. Serodiagnosis was undertaken by ELISA that used sonicated Strongyloides ratti antigen to detect anti-Strongyloides IgG. Non-pregnant participants weighing ≥15 kg were administered a single 200 µg/kg ivermectin dose, repeated after 10-42 days if Strongyloides and/or scabies was diagnosed; others followed a standard alternative algorithm. A questionnaire on clinical symptoms was administered to identify adverse events from treatment and self-reported symptoms associated with serostatus. FINDINGS: We surveyed 1013 participants at the baseline population census and 1060 (n = 700 from baseline cohort and 360 new entrants) at month 12. Strongyloides seroprevalence fell from 21% (175/818) at baseline to 5% at month 6. For participants from the baseline cohort this reduction was sustained at month 12 (34/618, 6%), falling to 2% at month 18 after the second MDA. For new entrants to the cohort at month 12, seroprevalence reduced from 25% (75/297) to 7% at month 18. Strongyloides positive seroconversions for the baseline cohort six months after each MDA were 2.5% (4/157) at month 6 and 1% at month 18, whilst failure to serorevert remained unchanged at 18%. At 12 months, eosinophilia was identified in 59% of baseline seropositive participants and 89% of seropositive new entrants, compared with 47%baseline seronegative participants and 51% seronegative new entrants. Seropositivity was not correlated with haemoglobin or any self-reported clinical symptoms. Clinical symptoms ascertained on the day of treatment and 24-72 hrs after, did not identify any adverse events. SIGNIFICANCE: Two community ivermectin MDAs delivered 12 months apart by trained Aboriginal researchers in collaboration with non-Indigenous researchers resulted in a sustained and significant reduction in Strongyloides seroprevalence over 18 months. Similar reductions were seen in the baseline cohort and new entrants.
[Mh] Termos MeSH primário: Antiparasitários/administração & dosagem
Ivermectina/administração & dosagem
Estrongiloidíase/tratamento farmacológico
[Mh] Termos MeSH secundário: Adolescente
Adulto
Distribuição por Idade
Animais
Anticorpos Anti-Helmínticos/sangue
Austrália/epidemiologia
Criança
Pré-Escolar
Feminino
Seres Humanos
Imunoglobulina G/sangue
Lactente
Meia-Idade
Grupo com Ancestrais Oceânicos
Gravidez
Estudos Soroepidemiológicos
Strongyloides
Estrongiloidíase/etnologia
Estrongiloidíase/prevenção & controle
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Helminth); 0 (Antiparasitic Agents); 0 (Immunoglobulin G); 70288-86-7 (Ivermectin)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170720
[Lr] Data última revisão:
170720
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170516
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pntd.0005607


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[PMID]:28483729
[Au] Autor:Karaman Ü; Kolören Z; Seferoglu O; Ayaz E; Demirel E
[Ad] Endereço:Ordu Üniversitesi Tip Fakültesi, Tibbi Parazitoloji Anabilim Dali, Ordu, Türkiye. ulkukaraman44@hotmail.com.
[Ti] Título:Presence of Parasites in Environmental Waters in Samsun and Its Districts.
[So] Source:Turkiye Parazitol Derg;41(1):19-21, 2017 Mar.
[Is] ISSN:2146-3077
[Cp] País de publicação:Turkey
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: The aim of this study was to detect the presence of parasites in environmental waters in Samsun and its districts. METHODS: At the center of Samsun, 13 stations were determined. The research was performed between March 2012 and February 2013, and every month, water samples were collected on the dates stated. The samples were stained with Kinyoun acid-fast, modified trichrome, and trichrome dyes after examining with the direct bond. The preparations were evaluated in terms of parasitologic under a light microscope. RESULTS: Totally, 180 of 228 water samples analyzed were from streams; of these, 48 were drinking water samples. The following were found: 142 Giardia spp., 132 Cryptosporidium spp., 56 Cyclospora spp., 38 microsporidia, 47 Blastocystis spp., 38 Entamoeba coli cysts, 18 Dientamoeba, 9 Chilomastix, 9 Strongyloides spp., and 6 hookworms. CONCLUSION: The widespread use of animal husbandry and agriculture in the region and the use of stream surroundings as a grazing area increase the presence of some determined protozoa during a certain period. Parasitological studies in humans and animals in the region should be conducted, and control programs should be applied.
[Mh] Termos MeSH primário: Parasitos/isolamento & purificação
Rios/parasitologia
[Mh] Termos MeSH secundário: Agricultura
Ancylostomatoidea/crescimento & desenvolvimento
Ancylostomatoidea/isolamento & purificação
Animais
Blastocystis/crescimento & desenvolvimento
Blastocystis/isolamento & purificação
Corantes
Cryptosporidium/crescimento & desenvolvimento
Cryptosporidium/isolamento & purificação
Cyclospora/crescimento & desenvolvimento
Cyclospora/isolamento & purificação
Dientamoeba/crescimento & desenvolvimento
Dientamoeba/isolamento & purificação
Entamoeba/crescimento & desenvolvimento
Entamoeba/isolamento & purificação
Giardia/crescimento & desenvolvimento
Giardia/isolamento & purificação
Seres Humanos
Microsporídios/crescimento & desenvolvimento
Microsporídios/isolamento & purificação
Parasitos/classificação
Parasitos/crescimento & desenvolvimento
Retortamonadídeos/crescimento & desenvolvimento
Retortamonadídeos/isolamento & purificação
Coloração e Rotulagem
Strongyloides/crescimento & desenvolvimento
Strongyloides/isolamento & purificação
Turquia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coloring Agents)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171108
[Lr] Data última revisão:
171108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170510
[St] Status:MEDLINE
[do] DOI:10.5152/tpd.2017.3574


  4 / 929 MEDLINE  
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Costa-Cruz, Julia Maria
Texto completo SciELO Brasil
[PMID]:28380118
[Au] Autor:Moraes D; Levenhagen MA; Costa-Cruz JM; Costa AP; Rodrigues RM
[Ad] Endereço:Universidade Federal de Goiás, Laboratório de Parasitologia, Jataí, Goiás, Brazil.
[Ti] Título:In vitro efficacy of latex and purified papain from Carica papaya against Strongyloides venezuelensis eggs and larvae.
[So] Source:Rev Inst Med Trop Sao Paulo;59:e7, 2017 Apr 03.
[Is] ISSN:1678-9946
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:Latex from Carica papaya is rich in bioactive compounds, especially papain, which may help to control parasitic diseases. This study evaluated the efficacy of latex from C. papaya and purified papain against Strongyloides venezuelensis. The Egg Hatching Test (EHT) and the Larval Motility Test (LMT) using fresh and frozen latex (250mg/mL), lyophilized latex (34mg/mL), and purified papain (2.8 mg/mL) were performed. Albendazole (0.025 mg/mL) and ivermectin (316 ppm) were used as positive controls. EHT and LMT were carried out through the incubation of each solution with S. venezuelensis eggs or larvae (± 100 specimens), and results were analyzed after 48h (EHT) or 24, 48, and 72h (LMT). EHT showed that latex preparations at higher concentrations (1:10 to 1:100) resulted in partial or complete destruction of eggs and larvae inside the eggs. The result from the 1:1,000 dilution was similar to the positive control. LMT showed effectiveness in all the tested dilutions compared to negative controls. Purified papain showed a dose-dependent response in the EHT. Purified papain (2.8 mg/ mL) showed similar results to lyophilized latex at 1:1,000 in the EHT. Latex and purified papain from C. papaya were effective against S. venezuelensis eggs and larvae in vitro, suggesting their potential use as an alternative treatment for strongyloidiasis.
[Mh] Termos MeSH primário: Carica/química
Látex/farmacologia
Papaína/farmacologia
Extratos Vegetais/farmacologia
Strongyloides/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Relação Dose-Resposta a Droga
Larva/efeitos dos fármacos
Látex/isolamento & purificação
Óvulo/efeitos dos fármacos
Papaína/isolamento & purificação
Testes de Sensibilidade Parasitária
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Latex); 0 (Plant Extracts); EC 3.4.22.2 (Papain)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170601
[Lr] Data última revisão:
170601
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170406
[St] Status:MEDLINE


  5 / 929 MEDLINE  
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[PMID]:28264908
[Au] Autor:Mukai K; Karasuyama H; Kabashima K; Kubo M; Galli SJ
[Ad] Endereço:Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.
[Ti] Título:Differences in the Importance of Mast Cells, Basophils, IgE, and IgG versus That of CD4 T Cells and ILC2 Cells in Primary and Secondary Immunity to Strongyloides venezuelensis.
[So] Source:Infect Immun;85(5), 2017 May.
[Is] ISSN:1098-5522
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:There is evidence that mast cells, basophils, and IgE can contribute to immune responses to parasites; however, the relative levels of importance of these effector elements in parasite immunity are not fully understood. Previous work in -deficient and c- mutant mice indicated that interleukin-3 and c-Kit contribute to expulsion of the intestinal nematode during primary infection. Our findings in mast cell-deficient mice and two types of mast cell-deficient mice that have normal c- ("Hello ty" and MasTRECK mice) confirmed prior work in mice that suggested that mast cells play an important role in egg clearance in primary infections. We also assessed a possible contribution of basophils in immune responses to By immunohistochemistry, we found that numbers of basophils and mast cells were markedly increased in the jejunal mucosa during primary infections with Studies in basophil-deficient mice revealed a small but significant contribution of basophils to egg clearance in primary infections. Studies in mice deficient in various components of immune responses showed that CD4 T cells and ILC2 cells, IgG, FcRγ, and, to a lesser extent, IgE and FcεRI contribute to effective immunity in primary infections. These findings support the conclusion that the hierarchy of importance of immune effector mechanisms in primary infection is as follows: CD4 T cells/ILC2 cells, IgG, and FcRγ>mast cells>IgE and FcεRI>basophils. In contrast, in secondary infection, our evidence indicates that the presence of CD4 T cells is of critical importance but mast cells, antibodies, and basophils have few or no nonredundant roles.
[Mh] Termos MeSH primário: Anticorpos Anti-Helmínticos/sangue
Basófilos/imunologia
Linfócitos T CD4-Positivos/imunologia
Mastócitos/imunologia
Strongyloides/imunologia
Estrongiloidíase/imunologia
[Mh] Termos MeSH secundário: Animais
Modelos Animais de Doenças
Imunoglobulina E/sangue
Imunoglobulina G/sangue
Camundongos Endogâmicos BALB C
Camundongos Endogâmicos C57BL
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Helminth); 0 (Immunoglobulin G); 37341-29-0 (Immunoglobulin E)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171021
[Lr] Data última revisão:
171021
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170308
[St] Status:MEDLINE


  6 / 929 MEDLINE  
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[PMID]:27894367
[Au] Autor:Corral MA; Paula FM; Meisel DM; Castilho VL; Gonçalves EM; Levy D; Bydlowski SP; Chieffi PP; Castro-Borges W; Gryschek RC
[Ad] Endereço:Laboratório de Investigação Médica (LIM-06),Hospital das Clínicas da Faculdade de Medicina,Universidade de São Paulo,SP,Brazil.
[Ti] Título:Potential immunological markers for diagnosis of human strongyloidiasis using heterologous antigens.
[So] Source:Parasitology;144(2):124-130, 2017 Feb.
[Is] ISSN:1469-8161
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Strongyloides venezuelensis is a parasitic nematode of rodents that is frequently used to obtain heterologous antigens for immunological diagnosis of human strongyloidiasis. The aim of this study was to identify antigens from filariform larvae of S. venezuelensis for immunodiagnosis of human strongyloidiasis. Soluble and membrane fractions from filariform larvae of S. venezuelensis were obtained in phosphate saline (SS and SM) and in Tris-HCl buffer (TS and TM), and were analysed by Western blotting. Different antigenic components were recognized by IgG antibodies from the sera of strongyloidiasis patients. Highest recognition was observed for a 30-40 kDa mass range present in all antigenic fractions. The band encompassing this mass range was then excised and subjected to mass spectrometry for protein identification. Immunoreactive proteins identified in the soluble fractions corresponded to metabolic enzymes, whereas cytoskeletal proteins and galectins were more abundant in the membrane fractions. These results represent the first approach towards identification of S. venezuelensis antigens for use in immunodiagnostic assays for human strongyloidiasis.
[Mh] Termos MeSH primário: Strongyloides/imunologia
Estrongiloidíase/sangue
Estrongiloidíase/diagnóstico
[Mh] Termos MeSH secundário: Animais
Antígenos de Helmintos
Biomarcadores/sangue
Ensaio de Imunoadsorção Enzimática
Proteínas de Helminto/imunologia
Seres Humanos
Sensibilidade e Especificidade
Estrongiloidíase/imunologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antigens, Helminth); 0 (Biomarkers); 0 (Helminth Proteins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171006
[Lr] Data última revisão:
171006
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161130
[St] Status:MEDLINE
[do] DOI:10.1017/S0031182016001645


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[PMID]:27785599
[Au] Autor:Roesel K; Dohoo I; Baumann M; Dione M; Grace D; Clausen PH
[Ad] Endereço:Freie Universität Berlin, Institute for Parasitology and Tropical Veterinary Medicine, Robert-von-Ostertag-Str. 7-13, 14163, Berlin, Germany. k.roesel@cgiar.org.
[Ti] Título:Prevalence and risk factors for gastrointestinal parasites in small-scale pig enterprises in Central and Eastern Uganda.
[So] Source:Parasitol Res;116(1):335-345, 2017 Jan.
[Is] ISSN:1432-1955
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:In Eastern Africa, small-scale pig keeping has emerged as a popular activity to generate additional household income. Infections of pigs with gastrointestinal helminths can limit production output, increase production costs, and pose zoonotic risks. A cross-sectional, community-based study in three districts in Eastern and Central Uganda examined the prevalence of gastrointestinal helminthes and associated risk factors in 932 randomly sampled pigs. Using the combined sedimentation-flotation method, 61.4 % (58.2-64.5 %, 95 % confidence interval [CI]) tested positive for one or more gastrointestinal helminths, namely, strongyles (57.1 %, 95 % CI), Metastrongylus spp. (7.6 %, 95 % CI), Ascaris suum (5.9 %, 95 % CI), Strongyloides ransomi (4.2 %, 95 % CI), and Trichuris suis (3.4 %, 95 % CI). Coccidia oocysts were found in 40.7 % of all pigs sampled (37.5-44.0 %, 95 % CI). Significant differences across the three districts were observed for the presence of A. suum (p < 0.001), Metastrongylus spp. (p = 0.001), S. ransomi (p = 0.002), and coccidia oocysts (p = 0.05). All animals tested negative for Fasciola spp. and Balantidium coli. Thirty-five variables were included in univariable analyses with helminth infection as the outcome of interest. A causal model was generated to identify relationships among the potential predictors, and consequently, seven variables with p ≤ 0.15 were included in a multivariable analysis for helminth infection. The final regression models showed that routine management factors had a greater impact on the prevalence of infection than regular, preventive medical treatment or the level of confinement. Factors that negatively correlated with gastrointestinal infection were the routine removal of manure and litter from pig pens (p ≤ 0.05, odds ratio [OR] = 0.667) and the routine use of disinfectants (p ≤ 0.05, OR = 0.548).
[Mh] Termos MeSH primário: Enteropatias Parasitárias/veterinária
Estrongiloidíase/veterinária
Doenças dos Suínos/parasitologia
Tricuríase/veterinária
[Mh] Termos MeSH secundário: Animais
Estudos Transversais
Fezes/parasitologia
Enteropatias Parasitárias/epidemiologia
Enteropatias Parasitárias/parasitologia
Masculino
Prevalência
Fatores de Risco
Strongyloides/classificação
Estrongiloidíase/epidemiologia
Estrongiloidíase/parasitologia
Suínos
Doenças dos Suínos/epidemiologia
Tricuríase/epidemiologia
Tricuríase/parasitologia
Trichuris/classificação
Uganda/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161028
[St] Status:MEDLINE


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[PMID]:27618747
[Au] Autor:Hunt VL; Tsai IJ; Selkirk ME; Viney M
[Ad] Endereço:School of Biological Sciences,Life Sciences Building,University of Bristol,Bristol BS8 1TQ,UK.
[Ti] Título:The genome of Strongyloides spp. gives insights into protein families with a putative role in nematode parasitism.
[So] Source:Parasitology;144(3):343-358, 2017 Mar.
[Is] ISSN:1469-8161
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Parasitic nematodes are important and abundant parasites adapted to live a parasitic lifestyle, with these adaptations all aimed at facilitating their survival and reproduction in their hosts. The recently sequenced genomes of four Strongyloides species, gastrointestinal parasites of humans and other animals, alongside transcriptomic and proteomic analysis of free-living and parasitic stages of their life cycles have revealed a number of protein families with a putative role in their parasitism. Many of these protein families have also been associated with parasitism in other parasitic nematode species, suggesting that these proteins may play a fundamental role in nematode parasitism more generally. Here, we review key protein families that have a putative role in Strongyloides' parasitism - acetylcholinesterases, astacins, aspartic proteases, prolyl oligopeptidases, proteinase inhibitors (trypsin inhibitors and cystatins), SCP/TAPS and transthyretin-like proteins - and the evidence for their key, yet diverse, roles in the parasitic lifestyle.
[Mh] Termos MeSH primário: Proteínas de Helminto/genética
Interações Hospedeiro-Parasita
Strongyloides/genética
Fatores de Virulência/genética
[Mh] Termos MeSH secundário: Animais
Seres Humanos
Strongyloides/patogenicidade
Estrongiloidíase/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Helminth Proteins); 0 (Virulence Factors)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160914
[St] Status:MEDLINE
[do] DOI:10.1017/S0031182016001554


  9 / 929 MEDLINE  
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[PMID]:27374886
[Au] Autor:Thamsborg SM; Ketzis J; Horii Y; Matthews JB
[Ad] Endereço:University of Copenhagen,Veterinary Parasitology Group,100 Dyrlægevej,DK-1870 Frederiksberg C,Denmark.
[Ti] Título:Strongyloides spp. infections of veterinary importance.
[So] Source:Parasitology;144(3):274-284, 2017 Mar.
[Is] ISSN:1469-8161
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This paper reviews the occurrence and impact of threadworms, Strongyloides spp., in companion animals and large livestock, the potential zoonotic implications and future research. Strongyloides spp. infect a range of domestic animal species worldwide and clinical disease is most often encountered in young animals. Dogs are infected with Strongyloides stercoralis while cats are infected with different species according to geographical location (Strongyloides felis, Strongyloides tumefaciens, Strongyloides planiceps and perhaps S. stercoralis). In contrast to the other species, lactogenic transmission is not a primary means of infection in dogs, and S. stercoralis is the only species considered zoonotic. Strongyloides papillosus in calves has been linked to heavy fatalities under conditions of high stocking density. Strongyloides westeri and Strongyloides ransomi of horses and pigs, respectively, cause only sporadic clinical disease. In conclusion, these infections are generally of low relative importance in livestock and equines, most likely due to extensive use of macrocyclic lactone anthelmintics and/or improved hygiene. Future prevalence studies need to include molecular typing of Strongyloides species in relation to different hosts. More research is urgently needed on the potential zoonotic capacity of Strongyloides from dogs and cats based on molecular typing, information on risk factors and mapping of transmission routes.
[Mh] Termos MeSH primário: Animais Domésticos/parasitologia
Animais de Estimação/parasitologia
Strongyloides/classificação
Strongyloides/isolamento & purificação
Estrongiloidíase/veterinária
Zoonoses/epidemiologia
Zoonoses/parasitologia
[Mh] Termos MeSH secundário: Animais
Estudos Transversais
Estrongiloidíase/epidemiologia
Estrongiloidíase/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160705
[St] Status:MEDLINE
[do] DOI:10.1017/S0031182016001116


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[PMID]:27181117
[Au] Autor:Nutman TB
[Ad] Endereço:Laboratory of Parasitic Diseases,National Institute of Allergy and Infectious Diseases,National Institutes of Health,Building 4 - Room B1-03,4 Center Dr.,Bethesda,MD 20892-0425,USA.
[Ti] Título:Human infection with Strongyloides stercoralis and other related Strongyloides species.
[So] Source:Parasitology;144(3):263-273, 2017 Mar.
[Is] ISSN:1469-8161
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The majority of the 30-100 million people infected with Strongyloides stercoralis, a soil transmitted intestinal nematode, have subclinical (or asymptomatic) infections. These infections are commonly chronic and longstanding because of the autoinfective process associated with its unique life cycle. A change in immune status can increase parasite numbers, leading to hyperinfection syndrome, dissemination, and death if unrecognized. Corticosteroid use and HTLV-1 infection are most commonly associated with the hyperinfection syndrome. Strongyloides adult parasites reside in the small intestine and induce immune responses both local and systemic that remain poorly characterized. Definitive diagnosis of S. stercoralis infection is based on stool examinations for larvae, but newer diagnostics - including new immunoassays and molecular tests - will assume primacy in the next few years. Although good treatment options exist for infection and control of this infection might be possible, S. stercoralis remains largely neglected.
[Mh] Termos MeSH primário: Strongyloides/classificação
Strongyloides/patogenicidade
Estrongiloidíase/patologia
Estrongiloidíase/parasitologia
[Mh] Termos MeSH secundário: Animais
Anti-Helmínticos/uso terapêutico
Testes Diagnósticos de Rotina
Seres Humanos
Técnicas de Diagnóstico Molecular/métodos
Parasitologia/métodos
Prevalência
Strongyloides/imunologia
Estrongiloidíase/diagnóstico
Estrongiloidíase/tratamento farmacológico
Estrongiloidíase/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Anthelmintics)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160517
[St] Status:MEDLINE
[do] DOI:10.1017/S0031182016000834



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