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[PMID]:28972920
[Au] Autor:Park K; Kwak IS
[Ad] Endereço:Faculty of Marine Technology, Chonnam National University, Yeosu 550-749, South Korea.
[Ti] Título:Disrupting effects of antibiotic sulfathiazole on developmental process during sensitive life-cycle stage of Chironomus riparius.
[So] Source:Chemosphere;190:25-34, 2018 Jan.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Antibiotics in the environment are a concern due to their potential to harm humans and interrupt ecosystems. Sulfathiazole (STZ), a sulfonamide antibiotic, is commonly used in aquaculture and is typically found in aquatic ecosystems. We evaluated the ecological risk of STZ by examining biological, molecular and biochemical response in Chironomus riparius. Samples were exposed to STZ for 12, 24 and 96 h, and effects of STZ were evaluated at the molecular level by analyzing changes in gene expression related to the endocrine system, cellular stress response and enzyme activity of genes on antioxidant and detoxification pathways. STZ exposure induced significant effects on survival, growth and sex ratio of emergent adults and mouthpart deformity in C. riparius. STZ caused concentration and time-dependent toxicity in most of the selected biomarkers. STZ exposure leads to significant heat-shock response of protein genes (HSP70, HSP40, HSP90 and HSP27) and to disruption by up-regulating selected genes, including the ecdysone receptor gene, estrogen-related receptors, ultraspiracle and E74 early ecdysone-responsive gene. Furthermore, STZ induced alteration of enzyme activities on antioxidant and detoxification responses (catalase, superoxide dismutase, glutathione peroxidase and peroxidase) in C. riparius. By inducing oxidative stress, antibiotic STZ disturbs the endocrine system and produces adverse effects in growth processes of invertebrates.
[Mh] Termos MeSH primário: Chironomidae/efeitos dos fármacos
Expressão Gênica/efeitos dos fármacos
Estágios do Ciclo de Vida/efeitos dos fármacos
Sulfatiazóis/toxicidade
[Mh] Termos MeSH secundário: Animais
Antibacterianos/farmacologia
Antibacterianos/toxicidade
Chironomidae/crescimento & desenvolvimento
Ecdisona/metabolismo
Sistema Endócrino/efeitos dos fármacos
Sistema Endócrino/metabolismo
Proteínas de Choque Térmico HSP70/metabolismo
Resposta ao Choque Térmico/efeitos dos fármacos
Inativação Metabólica/efeitos dos fármacos
Receptores de Esteroides/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (HSP70 Heat-Shock Proteins); 0 (Receptors, Steroid); 0 (Sulfathiazoles); 0 (ecdysone receptor); 3604-87-3 (Ecdysone); Y7FKS2XWQH (sulfathiazole)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171004
[St] Status:MEDLINE


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[PMID]:29193300
[Au] Autor:Lan H; Hong X; Huang R; Lin X; Li Q; Li K; Zhou T
[Ad] Endereço:School of Biological Sciences and Biotechnology, Minnan Normal University, Zhangzhou, PR China.
[Ti] Título:RNA interference-mediated knockdown and virus-induced suppression of Troponin C gene adversely affect the behavior or fitness of the green rice leafhopper, Nephotettix cincticeps.
[So] Source:Arch Insect Biochem Physiol;97(2), 2018 Feb.
[Is] ISSN:1520-6327
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The green rice leafhopper, Nephotettix cincticeps, is a major rice pest in Southeast Asia and Southern China. Novel control strategies must be explored to control the rice pest. Behavior or fitness regulation of insect by modulating the Troponin C (TnC) may be a novel strategy in the comprehensive management of the insect pest. However, characterizations and functions of TnC, especially regarding effect of its RNA interference-mediated gene knockdown on the behavior or fitness of N. cincticeps remain unknown. Here, we successfully cloned and characterized TnC gene from N. cincticeps (Nc-TnC). We demonstrated that Nc-TnC ubiquitously transcribed at all development stages and special tissues in adult insects, with relative higher levels at the adult stage and in the intestinal canal. Microinjection- or oral membrane feeding-based transient knockdown of Nc-TnC adversely affected the performance or fitness, such as the decreased survival, feeding capacity, weight, and fecundity of N. cincticeps. Furthermore, we revealed that the expression of Nc-TnC was suppressed by its interaction with rice dwarf virus-encoded nonstructural protein 10, which ultimately affected detrimentally the corresponding parameters of the performance or fitness of N. cincticeps. In conclusion, our data deepen understanding of Nc-TnC functions during the development of and viral infection in N. cincticeps. It imply Nc-TnC may serve as a potential target for N. cincticeps control in future.
[Mh] Termos MeSH primário: Hemípteros/fisiologia
Reoviridae/fisiologia
Troponina C/fisiologia
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Animais
Sequência de Bases
Feminino
Aptidão Genética
Hemípteros/virologia
Controle de Insetos
Larva/metabolismo
Estágios do Ciclo de Vida
Interferência de RNA
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Troponin C)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180216
[Lr] Data última revisão:
180216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171202
[St] Status:MEDLINE
[do] DOI:10.1002/arch.21438


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[PMID]:28458212
[Au] Autor:Peterson EK; Wilson DT; Possidente B; McDaniel P; Morley EJ; Possidente D; Hollocher KT; Ruden DM; Hirsch HVB
[Ad] Endereço:Department of Biological Sciences, University at Albany-State University of New York, Albany, NY 12222, USA. Electronic address: epeterson@albany.edu.
[Ti] Título:Accumulation, elimination, sequestration, and genetic variation of lead (Pb ) loads within and between generations of Drosophila melanogaster.
[So] Source:Chemosphere;181:368-375, 2017 Aug.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:We examined accumulation, sequestration, elimination, and genetic variation for lead (Pb) loads within and between generations of Drosophila melanogaster. Flies were reared in control or leaded medium at various doses and tested for their Pb loads at different stages of development (larvae, eclosion, newly-eclosed adults, and mature adults). Pb loads were tested using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). We found that D. melanogaster readily accumulated Pb throughout their lifespan and the levels of accumulation increased with Pb exposure in the medium. Wandering third-instar larvae accumulated more Pb than mature adults; this phenomenon may be due to elimination of Pb in the pupal cases during eclosion and/or depuration in adults post-eclosion. The accumulated Pb in mature adults was not transferred to F mature adult offspring. Using a set of recombinant inbred strains, we identified a quantitative trait locus for adult Pb loads and found that genetic variation accounted for 34% of the variance in Pb load. We concluded that D. melanogaster is a useful model organism for evaluating changes in Pb loads during development, as well as between generations. Furthermore, we found that genetic factors can influence Pb loads; this provides an essential foundation for evaluating phenotypic variation induced by the toxic effects of Pb.
[Mh] Termos MeSH primário: Drosophila melanogaster/metabolismo
Chumbo/análise
Chumbo/farmacocinética
Estágios do Ciclo de Vida/efeitos dos fármacos
[Mh] Termos MeSH secundário: Animais
Drosophila melanogaster/efeitos dos fármacos
Drosophila melanogaster/genética
Variação Genética
Larva/crescimento & desenvolvimento
Chumbo/toxicidade
Espectrometria de Massas
Locos de Características Quantitativas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
2P299V784P (Lead)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE


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[PMID]:29304084
[Au] Autor:Tanga CM; Khamis FM; Tonnang HEZ; Rwomushana I; Mosomtai G; Mohamed SA; Ekesi S
[Ad] Endereço:International Centre of Insect Physiology and Ecology (ICIPE), GPO, Nairobi, Kenya.
[Ti] Título:Risk assessment and spread of the potentially invasive Ceratitis rosa Karsch and Ceratitis quilicii De Meyer, Mwatawala & Virgilio sp. Nov. using life-cycle simulation models: Implications for phytosanitary measures and management.
[So] Source:PLoS One;13(1):e0189138, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Integrative taxonomy has resolved the species status of the potentially invasive Ceratitis rosa Karsch into two separate species with distinct ecological requirements: C. rosa "lowland type" and the newly described species Ceratitis quilicii De Meyer, Mwatawala & Virgilio sp. nov. "highland type". Both species are tephritid pests threatening the production of horticultural crops in Africa and beyond. Studies were carried out by constructing thermal reaction norms for each life stage of both species at constant and fluctuating temperatures. Non-linear functions were fitted to continuously model species development, mortality, longevity and oviposition to establish phenology models that were stochastically simulated to estimate the life table parameters of each species. For spatial analysis of pest risk, three generic risk indices were visualized using the advanced Insect Life Cycle Modeling software. The study revealed that the highest fecundity, intrinsic rate of natural increase and net reproductive rate for C. rosa and C. quilicii was at 25 and 30°C, respectively. The resulting model successfully fits the known distribution of C. rosa and C. quilicii in Africa and the two Indian Ocean islands of La Réunion and Mauritius. Globally, the model highlights the substantial invasion risk posed by C. rosa and C. quilicii to cropping regions in the Americas, Australia, India, China, Southeast Asia, Europe, and West and Central Africa. However, the proportion of the regions predicted to be climatically suitable for both pests is narrower for C. rosa in comparison with C. quilicii, suggesting that C. quilicii will be more tolerant to a wider range of climatic conditions than C. rosa. This implies that these pests are of significant concern to biosecurity agencies in the uninvaded regions. Therefore, these findings provide important information to enhance monitoring/surveillance and designing pest management strategies to limit the spread and reduce their impact in the invaded range.
[Mh] Termos MeSH primário: Produtos Agrícolas/parasitologia
Modelos Biológicos
Tephritidae/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Animais
Clima
Ecossistema
Feminino
Fertilidade
Espécies Introduzidas
Estágios do Ciclo de Vida
Longevidade
Masculino
Dinâmica não Linear
Oviposição
Controle de Pragas
Medição de Risco
Software
Especificidade da Espécie
Temperatura Ambiente
Tephritidae/patogenicidade
Tephritidae/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; VALIDATION STUDIES
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180210
[Lr] Data última revisão:
180210
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189138


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[PMID]:27776996
[Au] Autor:Holm HJ; Skugor S; Bjelland AK; Radunovic S; Wadsworth S; Koppang EO; Evensen Ø
[Ad] Endereço:Faculty of Veterinary Medicine and Biosciences, Department of Basic Sciences and Aquatic Medicine, Sea Lice Research Centre, Norwegian University of Life Sciences, Oslo, Norway. Electronic address: Helle.Holm@nmbu.no.
[Ti] Título:Contrasting expression of immune genes in scaled and scaleless skin of Atlantic salmon infected with young stages of Lepeophtheirus salmonis.
[So] Source:Dev Comp Immunol;67:153-165, 2017 02.
[Is] ISSN:1879-0089
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Atlantic salmon skin tissues with and without scales were taken from two preferred sites of salmon louse (Lepeophtheirus salmonis) attachment, behind the dorsal fin (scaled) and from the top of the head (scaleless), respectively. Tissues were profiled by qPCR of 32 genes to study responses to copepodids, 4 days post infection (dpi), and during the moult of copepodids to the chalimus stage, at 8 dpi. Basal/constitutive differences were found for many immune-related genes between the two skin sites; e.g., mannose binding protein C was over 100 fold higher expressed in the scaled skin from the back in comparison to the skin without scales from the head. With lice-infection, at 4 dpi most genes in both tissues showed lower values than in the non-infected control. By 8 dpi, the majority of responses increased towards the control levels, including cytokines of Th1, Th17 and Th2 pathways. Immunohistochemistry of three immune factors revealed an even distribution of MHC class II positive cells throughout epidermis, including the top layer of keratinocytes, marked compartmentalization of Mx and CD8α cells close to stratum basale, and an increase in numbers of CD8α cells in response to infection. In conclusion, suppression of immune genes during the copepodid stage likely sets off a beneficial situation for the parasite. At the moult to chalimus stage 8 dpi, only few genes surpassed the non-infected control levels, including CD8α. The gene expression pattern was reflected in the increased number of CD8α expressing cells, thus revealing a relatively minor activation of skin T-cell defenses in Atlantic salmon in response to L. salmonis infection.
[Mh] Termos MeSH primário: Escamas de Animais/fisiologia
Copépodes/imunologia
Proteínas de Peixes/metabolismo
Infestações por Piolhos/imunologia
Lectina de Ligação a Manose/metabolismo
Salmo salar/imunologia
Pele/imunologia
[Mh] Termos MeSH secundário: Escamas de Animais/parasitologia
Animais
Células Cultivadas
Citocinas/metabolismo
Proteínas de Peixes/genética
Imunidade/genética
Infestações por Piolhos/genética
Estágios do Ciclo de Vida
Lectina de Ligação a Manose/genética
Salmo salar/parasitologia
Pele/parasitologia
Fenômenos Fisiológicos da Pele/genética
Células Th1/imunologia
Células Th17/imunologia
Células Th2/imunologia
Transcriptoma
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Cytokines); 0 (Fish Proteins); 0 (MBL2 protein, human); 0 (Mannose-Binding Lectin)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:180210
[Lr] Data última revisão:
180210
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161026
[St] Status:MEDLINE


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Alves, Carlos Roberto
Côrtes, Luzia Monteiro de Castro
Texto completo
[PMID]:29175018
[Au] Autor:Alves CR; Souza RS; Charret KDS; Côrtes LMC; Sá-Silva MP; Barral-Veloso L; Oliveira LFG; da Silva FS
[Ad] Endereço:Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Biologia Molecular e Doenças Endêmicas, Avenida Brasil, 4365, Manguinhos, Rio de Janeiro, RJ, CEP: 21040-360, Brazil. Electronic address: calves@ioc.fiocruz.br.
[Ti] Título:Understanding serine proteases implications on Leishmania spp lifecycle.
[So] Source:Exp Parasitol;184:67-81, 2018 Jan.
[Is] ISSN:1090-2449
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Serine proteases have significant functions over a broad range of relevant biological processes to the Leishmania spp lifecycle. Data gathered here present an update on the Leishmania spp serine proteases and the status of these enzymes as part of the parasite degradome. The serine protease genes (n = 26 to 28) in Leishmania spp, which encode proteins with a wide range of molecular masses (35 kDa-115 kDa), are described along with their degrees of chromosomal and allelic synteny. Amid 17 putative Leishmania spp serine proteases, only ∼18% were experimentally demonstrated, as: signal peptidases that remove the signal peptide from secretory pre-proteins, maturases of other proteins and with metacaspase-like activity. These enzymes include those of clans SB, SC and SF. Classical inhibitors of serine proteases are used as tools for the characterization and investigation of Leishmania spp. Endogenous serine protease inhibitors, which are ecotin-like, can act modulating host actions. However, crude or synthetic based-natural serine protease inhibitors, such as potato tuber extract, Stichodactyla helianthus protease inhibitor I, fukugetin and epoxy-α-lapachone act on parasitic serine proteases and are promising leishmanicidal agents. The functional interrelationship between serine proteases and other Leishmania spp proteins demonstrate essential functions of these enzymes in parasite physiology and therefore their value as targets for leishmaniasis treatment.
[Mh] Termos MeSH primário: Leishmania/enzimologia
Leishmania/crescimento & desenvolvimento
Estágios do Ciclo de Vida
Serina Proteases/metabolismo
Inibidores de Serino Proteinase/farmacologia
[Mh] Termos MeSH secundário: Animais
Seres Humanos
Leishmania/classificação
Leishmania/genética
Leishmaniose/tratamento farmacológico
Serina Proteases/química
Serina Proteases/classificação
Serina Proteases/genética
Inibidores de Serino Proteinase/química
Inibidores de Serino Proteinase/uso terapêutico
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Serine Proteinase Inhibitors); EC 3.4.- (Serine Proteases)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180205
[Lr] Data última revisão:
180205
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE


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[PMID]:29267392
[Au] Autor:Zíková A; Verner Z; Nenarokova A; Michels PAM; Lukes J
[Ad] Endereço:Institute of Parasitology, Biology Centre, Czech Academy of Sciences, Ceské Budejovice, Czech Republic.
[Ti] Título:A paradigm shift: The mitoproteomes of procyclic and bloodstream Trypanosoma brucei are comparably complex.
[So] Source:PLoS Pathog;13(12):e1006679, 2017 12.
[Is] ISSN:1553-7374
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Proteínas Mitocondriais/metabolismo
Proteínas de Protozoários/metabolismo
Trypanosoma brucei brucei/crescimento & desenvolvimento
Trypanosoma brucei brucei/metabolismo
[Mh] Termos MeSH secundário: Animais
Seres Humanos
Estágios do Ciclo de Vida/fisiologia
Proteoma/análise
Proteoma/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; REVIEW
[Nm] Nome de substância:
0 (Mitochondrial Proteins); 0 (Proteome); 0 (Protozoan Proteins)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180111
[Lr] Data última revisão:
180111
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE
[do] DOI:10.1371/journal.ppat.1006679


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[PMID]:29176805
[Au] Autor:Shah-Simpson S; Lentini G; Dumoulin PC; Burleigh BA
[Ad] Endereço:Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, United States of America.
[Ti] Título:Modulation of host central carbon metabolism and in situ glucose uptake by intracellular Trypanosoma cruzi amastigotes.
[So] Source:PLoS Pathog;13(11):e1006747, 2017 Nov.
[Is] ISSN:1553-7374
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Obligate intracellular pathogens satisfy their nutrient requirements by coupling to host metabolic processes, often modulating these pathways to facilitate access to key metabolites. Such metabolic dependencies represent potential targets for pathogen control, but remain largely uncharacterized for the intracellular protozoan parasite and causative agent of Chagas disease, Trypanosoma cruzi. Perturbations in host central carbon and energy metabolism have been reported in mammalian T. cruzi infection, with no information regarding the impact of host metabolic changes on the intracellular amastigote life stage. Here, we performed cell-based studies to elucidate the interplay between infection with intracellular T. cruzi amastigotes and host cellular energy metabolism. T. cruzi infection of non-phagocytic cells was characterized by increased glucose uptake into infected cells and increased mitochondrial respiration and mitochondrial biogenesis. While intracellular amastigote growth was unaffected by decreased host respiratory capacity, restriction of extracellular glucose impaired amastigote proliferation and sensitized parasites to further growth inhibition by 2-deoxyglucose. These observations led us to consider whether intracellular T. cruzi amastigotes utilize glucose directly as a substrate to fuel metabolism. Consistent with this prediction, isolated T. cruzi amastigotes transport extracellular glucose with kinetics similar to trypomastigotes, with subsequent metabolism as demonstrated in 13C-glucose labeling and substrate utilization assays. Metabolic labeling of T. cruzi-infected cells further demonstrated the ability of intracellular parasites to access host hexose pools in situ. These findings are consistent with a model in which intracellular T. cruzi amastigotes capitalize on the host metabolic response to parasite infection, including the increase in glucose uptake, to fuel their own metabolism and replication in the host cytosol. Our findings enrich current views regarding available carbon sources for intracellular T. cruzi amastigotes and underscore the metabolic flexibility of this pathogen, a feature predicted to underlie successful colonization of tissues with distinct metabolic profiles in the mammalian host.
[Mh] Termos MeSH primário: Doença de Chagas/metabolismo
Doença de Chagas/parasitologia
Glucose/metabolismo
Trypanosoma cruzi/crescimento & desenvolvimento
Trypanosoma cruzi/metabolismo
[Mh] Termos MeSH secundário: Animais
Carbono/metabolismo
Interações Hospedeiro-Parasita
Seres Humanos
Estágios do Ciclo de Vida
Camundongos
Trypanosoma cruzi/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
7440-44-0 (Carbon); IY9XDZ35W2 (Glucose)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180109
[Lr] Data última revisão:
180109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE
[do] DOI:10.1371/journal.ppat.1006747


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[PMID]:29261787
[Au] Autor:Ricarte A; Souba-Dols GJ; Hauser M; Marcos-García MÁ
[Ad] Endereço:Centro Iberoamericano de la Biodiversidad (CIBIO), University of Alicante, San Vicente del Raspeig, Alicante, Spain.
[Ti] Título:A review of the early stages and host plants of the genera Eumerus and Merodon (Diptera: Syrphidae), with new data on four species.
[So] Source:PLoS One;12(12):e0189852, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The genera Eumerus and Merodon (Diptera: Syrphidae) have a high taxonomic diversity (300+ species altogether), but life histories of most species are unknown. In addition, these hoverfly genera are recognised to be pests (ornamental plants and vegetable crops). In this paper, early stages of four hoverfly species are described, Eumerus hungaricus Szilády, 1940, Eumerus nudus Loew, 1848 and Merodon geniculatus Strobl, 1909, from Spain, and Eumerus strigatus Walker, 1859, from California, USA. Larvae of E. nudus were obtained from swollen roots of Asphodelus cerasiferus J. Gay. Larvae of E. hungaricus were found in bulbs of Narcissus confusus Pugsley. The host plant of the examined specimen of Eumerus strigatus is unknown. Larvae of M. geniculatus were reared from bulbs of different species of Narcissus L. Scanning electron microscope imaging was used to study and illustrate the anterior respiratory processes, pupal spiracles and posterior respiratory processes of the new early stages. A compilation of all available information on the early stages and host plants of Eumerus (21 spp.) and Merodon (15 spp) is provided, as well as an identification key to all known larvae/puparia of these genera. Eumerus elavarensis Séguy, 1961 is proposed as a new synonym of E. hungaricus and first data of this species are reported from Austria, Bulgaria, Spain and Turkey. In Eumerus, larvae are alleged to rely on the previous presence of decay organisms, but in the larvae of E. nudus the sclerotisation and size of the mandibular hooks suggest that this larva can generate decay from intact plant tissue.
[Mh] Termos MeSH primário: Dípteros/crescimento & desenvolvimento
Dípteros/fisiologia
Interações Hospedeiro-Parasita/fisiologia
Estágios do Ciclo de Vida
Plantas/parasitologia
[Mh] Termos MeSH secundário: Animais
Dípteros/anatomia & histologia
Dípteros/ultraestrutura
Larva/anatomia & histologia
Larva/ultraestrutura
Pupa/anatomia & histologia
Pupa/ultraestrutura
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180108
[Lr] Data última revisão:
180108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171221
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189852


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[PMID]:29252992
[Au] Autor:Jarvi SI; Quarta S; Jacquier S; Howe K; Bicakci D; Dasalla C; Lovesy N; Snook K; McHugh R; Niebuhr CN
[Ad] Endereço:Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawaii, United States of America.
[Ti] Título:High prevalence of Angiostrongylus cantonensis (rat lungworm) on eastern Hawai'i Island: A closer look at life cycle traits and patterns of infection in wild rats (Rattus spp.).
[So] Source:PLoS One;12(12):e0189458, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The nematode Angiostrongylus cantonensis is a zoonotic pathogen and the etiological agent of human angiostrongyliasis or rat lungworm disease. Hawai'i, particularly east Hawai'i Island, is the epicenter for angiostrongyliasis in the USA. Rats (Rattus spp.) are the definitive hosts while gastropods are intermediate hosts. The main objective of this study was to collect adult A. cantonensis from wild rats to isolate protein for the development of a blood-based diagnostic, in the process we evaluated the prevalence of infection in wild rats. A total of 545 wild rats were sampled from multiple sites in the South Hilo District of east Hawai'i Island. Adult male and female A. cantonensis (3,148) were collected from the hearts and lungs of humanely euthanized Rattus rattus, and R. exulans. Photomicrography and documentation of multiple stages of this parasitic nematode in situ were recorded. A total of 45.5% (197/433) of rats inspected had lung lobe(s) (mostly upper right) which appeared granular indicating this lobe may serve as a filter for worm passage to the rest of the lung. Across Rattus spp., 72.7% (396/545) were infected with adult worms, but 93.9% (512/545) of the rats were positive for A. cantonensis infection based on presence of live adult worms, encysted adult worms, L3 larvae and/or by PCR analysis of brain tissue. In R. rattus we observed an inverse correlation with increased body mass and infection level of adult worms, and a direct correlation between body mass and encysted adult worms in the lung tissue, indicating that larger (older) rats may have developed a means of clearing infections or regulating the worm burden upon reinfection. The exceptionally high prevalence of A. cantonensis infection in Rattus spp. in east Hawai'i Island is cause for concern and indicates the potential for human infection with this emerging zoonosis is greater than previously thought.
[Mh] Termos MeSH primário: Angiostrongylus cantonensis/fisiologia
Ratos/parasitologia
Infecções por Strongylida/veterinária
[Mh] Termos MeSH secundário: Animais
Feminino
Geografia
Hawaii/epidemiologia
Ilhas
Estágios do Ciclo de Vida
Modelos Lineares
Masculino
Prevalência
Artéria Pulmonar/parasitologia
Infecções por Strongylida/epidemiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180108
[Lr] Data última revisão:
180108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189458



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