Consulta: subjectFacets:"Aedes aegypti"
Registros recuperados: 39
Data/hora: 05/06/2024 16:51:05

Manejo de la resistencia a insecticidas en el mosquito Aades aegypti (Linneus, 1762) en Guerrero, México.
Provedor de dados: 32
Autores: Chino Cantor, Araceli.
El dengue es una de las enfermedades más graves a nivel mundial en salud pública, y a la fecha el uso de insecticidas químicos ha sido la principal medida de control del vector Aedes aegypti transmisor del virus causal del dengue. Con la finalidad de aportar bases para definir una estrategia de manejo regional de insecticidas, se determinó la susceptibilidad de poblaciones de Aedes aegypti L., provenientes de tres regiones de Guerrero, México (Tierra Caliente, Costa Chica y Acapulco), a los insecticidas malatión, temefos, clorpirifós étilico, pirimifós-metil, permetrina, lambda cialotrina, propoxur y espinosina. La población susceptible New Orleans se usó como referencia. Los productos en grado técnico y comercial se evaluaron por aplicación residual en...
Palavras-chave: Dengue; Aedes aegypti; Resistencia a insecticidas; Insecticides resistance; Entomología y Acarología; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2160

Alcaloides de pemoche (Erythrina herbacea L.) como larvicidas contra el mosquito de la fiebre amarilla (Aedes aegypti L.).
Provedor de dados: 32
Autores: Salazar Aguilar, Sandra.
El mosquito transmisor de la fiebre amarilla, A. aegypti, también es vector del dengue, enfermedad con importancia a nivel mundial por la problemática socioeconómica provocada en las epidemias. En México los estados considerados económicamente importantes, son áreas potenciales la transmisión de esta enfermedad. Por lo que la búsqueda de sustancias para el control de este organismo es importante, ya que comienza a volverse resistente a insecticidas organosintéticos. Así en el presente estudio se realizaron pruebas con extractos de pemoche Erythrina herbacea, para encontrar posibles sustancias que puedan utilizarse para este fin. Se obtuvieron de las semillas de esta especie, los extractos crudos metanólicos: fracción de alcaloides libres (FAL) y fracción...
Palavras-chave: Erythrina herbacea; Aedes aegypti; Toxicidad de alcaloides; Actividad larvicida; Alcaloide diénico; Toxicity of alkaloids; Larvicida activity; Dienic alkaloid; Maestría; Botánica.
Ano: 2011
URL: http://hdl.handle.net/10521/406

Alcaloides de pemoche (Erythrina herbacea L.) como larvicidas contra el mosquito de la fiebre amarilla (Aedes aegypti L.).
Provedor de dados: 32
Autores: Salazar Aguilar, Sandra.
El mosquito transmisor de la fiebre amarilla, A. aegypti, también es vector del dengue, enfermedad con importancia a nivel mundial por la problemática socioeconómica provocada en las epidemias. En México los estados considerados económicamente importantes, son áreas potenciales la transmisión de esta enfermedad. Por lo que la búsqueda de sustancias para el control de este organismo es importante, ya que comienza a volverse resistente a insecticidas organosintéticos. Así en el presente estudio se realizaron pruebas con extractos de pemoche Erythrina herbacea, para encontrar posibles sustancias que puedan utilizarse para este fin. Se obtuvieron de las semillas de esta especie, los extractos crudos metanólicos: fracción de alcaloides libres (FAL) y fracción...
Palavras-chave: Erythrina herbacea; Aedes aegypti; Toxicidad de alcaloides; Actividad larvicida; Alcaloide diénico; Toxicity of alkaloids; Larvicida activity; Dienic alkaloid; Maestría; Botánica.
Ano: 2011
URL: http://hdl.handle.net/10521/406

Selección de hábitat de oviposición en Aedes aegypti (Diptera: Culicidae) mediante estímulos físicos
Provedor de dados: 67
Autores: Badano,Ernesto I; Regidor,Héctor A.
Aedes aegypti puede desarrollar su fase acuática en recipientes artificiales que detecta y evalúa mediante variables físicas. En este estudio se analizó el efecto del color (negro, rojo, verde y blanco) y de la superficie del recipiente (177 cm² y 57 cm²) sobre la respuesta de oviposición de Aedes aegypti en dos ambientes lumínicos diferentes (luz solar y 90% de sombra). Se montaron dos experimentos factoriales, uno en cada situación de luz, combinando colores y superficies. En ambas situaciones de luz se detectaron diferencias entre colores. Al sol, las trampas negras y rojas difirieron de las blancas y verdes; a la sombra, las trampas negras y rojas difirieron solamente de las verdes. Las superficies solo difirieron en la situación de sombra, con una...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Culicidae; Selección de hábitat; Respuesta de oviposición; Argentina.
Ano: 2002
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2002000200006

Desempenho de um pulverizador pneumático costal motorizado sob diferentes condições
Provedor de dados: 70
Autores: Gadanha Júnior,Casimiro D.; Costa,Marco A. F. da; Milan,Marcos.
O objetivo do trabalho foi avaliar a uniformidade de vazão de um pulverizador pneumático costal motorizado, utilizado no controle do mosquito vetor da dengue, sob várias condições operacionais de aplicação. O experimento foi planejado como um delineamento inteiramente casualizado, no esquema fatorial 2 x 7, com cinco repetições, sendo os fatores de variação dois diâmetros de orifício do disco dosador e sete ângulos de aplicação em relação ao plano horizontal. Foi avaliado também o efeito das pressões sobre a vazão por meio dos testes de Pearson. A interação dos fatores diâmetro do orifício do disco dosador e ângulo de aplicação foi significativa para a vazão. O disco dosador com diâmetro de 0,42 mm apresentou maior uniformidade entre as vazões médias,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Controle químico; Pulverizador.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162004000300023

First record of Aedes aegypti (L.) (Diptera: Culicidae) infected by the parasite Ascogregarina culicis (Ross) (Apicomplexa: Lecudinidae) in Argentina
Provedor de dados: 71
Autores: Dellapé,Mariana E.; Marti,Gerardo A.; Tranchida,María C.; García,Juan J.
In a survey for parasites and pathogens of Aedes aegypti conducted in La Plata, Argentina, an aseptate gregarine was found parasitizing larvae, pupae and adults of this mosquito species. This gregarine species was identified as Ascogregarina culicis based on the morphology and size of gamonts, gametocysts and oocysts. It is the first record of gregarine infections in culicids from Argentina.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Gregarine; Ascogregarina culicis; Aedes aegypti.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0328-03812005000100009

Sensitivity of RT-PCR method in samples shown to be positive for Zika virus by RT-qPCR in vector competence studies
Provedor de dados: 74
Autores: Paiva,Marcelo Henrique Santos; Guedes,Duschinka Ribeiro Duarte; Leal,Walter Soares; Ayres,Constância Flávia Junqueira.
Abstract Tissue samples from mosquitoes artificially infected with Zika virus and shown to be positive by RT-qPCR were reexamined by RT-PCR. Using these samples we compared the two methods employed in virus RNA detection for vector competence studies. Results demonstrated that, albeit useful, RT-PCR gave false negatives with low viral loads (&lt; 106 RNA copies/ml).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ZIKV; RT-PCR; Aedes aegypti; Vector competence.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000400597

Enzymatic variability in Aedes aegypti (Diptera: Culicidae) populations from Manaus-AM, Brazil
Provedor de dados: 74
Autores: Fraga,Elmary da Costa; Santos,Joselita Maria Mendes dos; Maia,Juracy de Freitas.
Eighteen enzymatic loci were analysed in Aedes aegypti populations from four neighbourhoods in the city of Manaus. The analyses showed that the Downtown population was the most polymorphic (p = 55.6%) with higher observed and expected mean heterozygosities (Ho = 0.152 ± 0.052; He = 0.174 ± 0.052, respectively). The least variability was detected in the Coroado and Cidade Nova populations, both with polymorphism of 44.4%. The latter population presented the least observed heterozygosity (Ho = 0.109 ± 0.037). Wright's F statistics showed that the mean value of Fis was higher than that of Fst (Fis = 0.164 &gt; Fst = 0.048), and from analysis of molecular variance (AMOVA) it was found that 95.12% of the variability is found within populations indicating a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Electrophoreses; Isozymes; Populations genetics.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000200011

Genetic variability in geographical populations of Aedes aegypti (Diptera, Culicidae) in Brazil elucidated by molecular markers
Provedor de dados: 74
Autores: Paduan,Karina dos Santos; Araújo-Júnior,João P.; Ribolla,Paulo E.M.
The tropical mosquito, Aedes aegypti is the most important domestic vector of urban yellow fever and dengue. Genetic population studies on this vector are important because they may lead to new tools for surveillance. An analysis of genetic structure was conducted among populations of A. aegypti from 11 localities in four demographic regions within six Brazilian federal states. Markers included 21 random amplified polymorphic DNA (RAPD) loci. RAPD markers were detected among populations and cluster analysis revealed two main groups. We found high genetic polymorphism (H S = 0.224) and high levels of genetic differentiation between populations from different states (G ST = 0.430), as well as in populations from cities in the same state (G ST = 0.410). These...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Population genetics; Random amplified polymorphic DNA; Genetic variability.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200030

Effects of caffeine and used coffee grounds on biological features of Aedes aegypti (Diptera, Culicidae) and their possible use in alternative control
Provedor de dados: 74
Autores: Laranja,Alessandra Theodoro; Manzatto,Antonio José; Campos Bicudo,Hermione Elly Melara de.
Caffeine and used coffee grounds completely blocked the development of Aedes aegypti in the early stages, in treatments with the concentrations 1.0 mg/mL and 50 mg/mL, respectively. More advanced stages and even adults were obtained in lower concentrations of both substances, enabling observations to be made of mortality rate, longevity and esterase patterns. The experiments involved treatments using either eggs or 3rd instar larvae (L3), with or without the addition of fish food. Mortality rates prior to the adult stage and adult longevity were significantly different in the comparisons among treatments, in every kind of experiment, but in those using L3 larvae, their percentages were smaller. Observations of the time of larva and adult onset suggested...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Caffeine; Used coffee grounds; Mortality; Longevity; Esterases; Alternative control.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000400004

Evidence of two lineages of the dengue vector Aedes aegypti in the Brazilian Amazon, based on mitochondrial DNA ND4 gene sequences
Provedor de dados: 74
Autores: Lima Júnior,Raimundo Sousa; Scarpassa,Vera Margarete.
Genetic variation was estimated in ten samples populations of Aedes aegypti from the Brazilian Amazon, by using a 380 bp fragment of the mitochocondrial NADH dehydrogenase subunit 4 (ND4) gene. A total of 123 individuals were analyzed, whereby 13 haplotypes were found. Mean genetic diversity was slightly high (h = 0.666 ± 0.029; π = 0.0115 ± 0.0010). Two AMOVA analyses indicated that most of the variation (~70%-72%) occurred within populations. The variation found among and between populations within the groups disclosed lower, but even so, highly significant values. F ST values were not significant in most of the comparisons, except for the samples from Pacaraima and Rio Branco. The isolation by distance (IBD) model was not significant (r = 0.2880; p =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Dengue vector; Genetic structure; Gene flow; Brazilian Amazon; Genetic lineages.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200032

Effect of phenobarbital on inducing insecticide tolerance and esterase changes in Aedes aegypti (Diptera: Culicidae)
Provedor de dados: 74
Autores: Sousa-Polezzi,Rita de Cássia; Bicudo,Hermione Elly Melara de Campos.
The effect of phenobarbital (PB) on the induction of tolerance to the organophosphorous insecticide temephos (TE) was investigated in Aedes aegypti L4 larvae submitted to two different PB-treatments:(1) continuous treatment from the egg to the larval L4 stage and (2) discontinuous treatment in which L4 larvae were exposed for 30 h. Mosquitoes from two Brazilian cities were studied: São José do Rio Preto (SJ) in São Paulo State and Goiânia (GO) in Goiás State. According to criterions established by World Health Organization (WHO) mosquitoes from SJ are organophosphate-susceptible while mosquitoes from GO are organophosphate-resistant. For both SJ and GO larvae the two different PB-treatments resulted in significantly increased tolerance (measured by reduced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Insecticide resistance; Phenobarbital; Tolerance; Pyperonyl butoxide; Esterases.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200024

Campanha "São Sebastião inova no combate à dengue" continua com bons resultados e muito apoio da população.
Provedor de dados: 14
Autores: DINIZ, F.
bitstream/CENARGEN/30148/1/bpecuario090207.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: São Sebastião; Bioinseticida.; Aedes aegypti; Dengue.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/190011

O aprendizado da agricultura no combate ao Aedes aegypti.
Provedor de dados: 14
Autores: LOPES, M. A.
bitstream/item/172448/1/O-aprendizado-da-agricultura-no-combate-ao-Aedes-aegypti.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Manejo Integrado de Pragas (MIP); Vazios sanitários; Chikungunya; Zika; Manejo integrado.; Doença de planta; Controle biológico; Inseticida.; Aedes aegypti; Dengue.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1087542

Inovação no combate à dengue.
Provedor de dados: 14
Autores: EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA.
bitstream/item/109238/1/fold07-17-inovacaoCombateDengue.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Combate; Bioinseticida.; Controle Biológico.; Aedes aegypti; Biological control; Dengue.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/189835

Geração de mapas e espacialização das notificações da dengue: uma contribuição da Embrapa para o enfrentamento do mosquito Aedes aegypti no Município de Campinas, SP
Provedor de dados: 14
Autores: OSHIRO, O. T.; CARVALHO, C. A. de; MIRANDA, E. E. de.
Esta publicação tem por objetivo ser um manual com as orientações necessárias para espacializar as notificações de casos de dengue existentes no Sistema de Informação de Agravos de Notificação (Sinan) do Ministério da Saúde por meio do uso de um recorte municipal disponível nas secretarias de saúde municipais. A partir de um estudo de caso no Município de Campinas, o documento aborda aspectos conceituais, software e sistemas de informações geográficas (SIGs) necessários para gerar as espacializações das notificações, além de um passo a passo para construir as análises espaciais sobre os pontos de notificações de dengue e gerar mapas de distribuição e concentração dos casos de dengue em um município. Uma contribuição esperada com esse manual é proporcionar...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Monitoramento territorial urbano; Produção de mapas de risco; Planejamento urbano; Estudo de caso; Planejamento; Saúde pública; Aedes aegypti; Dengue.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1064580

Bt-horus, um biolarvicida à base da Bacillus thuringiensis para controle de larvas de Aedes aegypti.
Provedor de dados: 14
Autores: MONNERAT, R. G.; SOARES, C. M.; ROBERG, R. A.; DUMAS, V. F.; RAMOS, F. R.; PRAÇA, L. B.; MARTINS, E. S.; QUEIROZ, P. R.; SUJII, E. R.
bitstream/CENARGEN-2009-09/31571/3/bp220_0908.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bt-horus; Biolarvicida.; Bactéria; Bacillus Thuringiensis; Controle Biológico.; Aedes aegypti; Dengue.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/191221

Yellow fever in Africa and the Americas: a historical and epidemiological perspective
Provedor de dados: 80
Autores: Chippaux,Jean-Philippe; Chippaux,Alain.
Abstract Yellow fever was transported during the slave trade in the 15th and 16th centuries from Africa to the Americas where the virus encountered favorable ecological conditions that allowed creation of a sustainable sylvatic cycle. Despite effective vector control and immunization programs for nearly a century, yellow fever epidemics reemerged in many Latin American countries, particularly Brazil. The emergence or reemergence of vector-borne diseases encompasses many intricate factors. Yellow fever outbreaks occur if at least three conditions are fulfilled: the introduction of the virus into a non-immune human community, presence of competent and anthropophilic vectors and insufficiency of prevention and/or adequate management of the growing outbreak....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Yellow fever; Aedes aegypti; Haemagogus sp.; Sabethes sp. Vector; Arbovirus; Epidemiology; Brazil; Latin America; Africa.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100207

Screening of Bacillus thuringiensis strains effective against mosquitoes
Provedor de dados: 86
Autores: Monnerat,Rose Gomes; Dias,Daniel Gerhein Souza; Silva,Silvania Ferreira da; Martins,Erica Soares; Berry,Colin; Falcão,Rosana; Gomes,Ana Cristina Menezes Mendes; Praça,Lilian Botelho; Soares,Carlos Marcelo Silveira.
The objective of this work was to evaluate 210 Bacillus thuringiensis strains against Aedes aegypti and Culex quinquefasciatus larvae to select the most effective. These strains were isolated from different regions of Brazil and are stored in a Bacillus spp. collection at Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil. The selected strains were characterized by morphological (microscopy), biochemical (SDS-PAGE 10%) and molecular (PCR) methods. Six B. thuringiensis strains were identified as mosquito-toxic after the selective bioassays. None of the strains produced the expected PCR products for detection of cry4, cry11 and cyt1A genes. These results indicate that the activity of mosquitocidal Brazilian strains are not related with Cry4, Cry11...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culex quinquefasciatus; Aedes aegypti; Bioinsecticide.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000200001

Genetic variability of a population of Aedes aegypti from Paraná, Brazil, using the mitochondrial ND4 gene
Provedor de dados: 92
Autores: Twerdochlib,Adriana L.; Bonna,Ana C. Dalla; Leite,Selene S.; Chitolina,Rodrigo F.; Westphal,Betina; Navarro-Silva,Mario A.
Genetic variability of a population of Aedes aegypti from Paraná, Brazil, using the mitochondrial ND4 gene. To analyze the genetic variability of populations of Aedes aegypti, 156 samples were collected from 10 municipalities in the state of Paraná, Brazil. A 311 base pairs (bp) region of the NADH dehydrogenase subunit 4 (ND4) mitochondrial gene was examined. An analysis of this fragment identified eight distinct haplotypes. The mean genetic diversity was high (h = 0.702; p = 0.01556). AMOVA analysis indicated that most of the variation (67%) occurred within populations and the F ST value (0.32996) was highly significant. F ST values were significant in most comparisons among cities. The isolation by distance was not significant (r = -0.1216 and p = 0,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Genetic variability; Mitochondrial DNA; Genetic population; State of Paraná.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000200013

Spatial evaluation of larvae of Culicidae (Diptera) from different breeding sites: application of a geospatial method and implications for vector control
Provedor de dados: 92
Autores: Piovezan,Rafael; Azevedo,Thiago Salomão de; Von Zuben,Cláudio José.
Spatial evaluation of Culicidae (Diptera) larvae from different breeding sites: application of a geospatial method and implications for vector control. This study investigates the spatial distribution of urban Culicidae and informs entomological monitoring of species that use artificial containers as larval habitats. Collections of mosquito larvae were conducted in the São Paulo State municipality of Santa Bárbara d' Oeste between 2004 and 2006 during house-to-house visits. A total of 1,891 samples and nine different species were sampled. Species distribution was assessed using the kriging statistical method by extrapolating municipal administrative divisions. The sampling method followed the norms of the municipal health services of the Ministry of Health...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Dengue; Mosquitoes; Spatial analysis; Vector control.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000300016

Spatial distribution of Culicidae (Diptera) larvae, and its implications for Public Health, in five areas of the Atlantic Forest biome, State of São Paulo, Brazil
Provedor de dados: 92
Autores: Piovezan,Rafael; Acorinthe,João Paulo Oliveira; Souza,Jonas Henrique Teixeira de; Visockas,Alexandre; Azevedo,Thiago Salomão de; Zuben,Cláudio José Von.
ABSTRACT In view of the adaptive ability of mosquitoes and their role in the transport of infective agents, entomological surveys undertaken in transitional environments are very important for the determination of the risk they represent for Public Health. Among the principal vectors of the infectious agents involved in the occurrence of important arboviruses, such as dengue, for example, are the Culicidae-insects capable of installing themselves in the urban nuclei, which exist within areas containing vestigial forests. This present study conducted a survey of mosquito species by means of traps to catch their larvae installed in five rural areas within the Atlantic Forest domain and containing its vestigial vegetation in the municipality of Santa Bárbara...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Aedes albopictus; Dengue; Entomological surveillance; Spatial analysis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000200123

Survival of the copepod Mesocyclops longisetus during simulations of transport from hatchery to target areas for biological control of mosquito larvae
Provedor de dados: 103
Autores: Nunes-Silva,Aline; Lima-Keppe,Isabela de; Souza,Robson V. de; Perbiche-Neves,Gilmar.
ABSTRACT Copepods have been successfully used in many countries for the biological control of larvae of mosquitoes that vector diseases. In Brazil, this line of research has been focused on the use of the copepod Mesocyclops longisetus (Thiébaud, 1914) for the biological control of the mosquito Aedes aegypti (Linnaeus, 1792). The transportation of the copepods from the place where they are reared to where they will be used often involves long distances for extended periods of time. This study assesses the survivorship of M. longisetus during simulation of transport under different conditions. Different loading densities (20, 30, 40, 80, and 120 ind.L) and stirring times (30 minutes, one hour, two hours, and four hours) were tested. Survivorship was high,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Copepoda; Culicidae; Density.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100309

Química y biología del extracto etanólico del epicarpio de Crescentia cujete L. (totumo)
Provedor de dados: 98
Autores: Espitia-Baena,Jorge Eliecer; Duran-Sandoval,Harriette del Rosario; Fandiño-Franky,Jaime; Díaz-Castillo,Fredyc; Gómez-Estrada,Harold Alberto.
Introducción: el árbol de Crescentia cujete L. (Bignonaceae), conocido en Colombia como totumo, es una especie característica de climas tropicales. Su rasgo más distintivo es el fruto, el cual es una calabaza esférica con cáscara dura y leñosa, y una pulpa gelatinosa con numerosas semillas. Objetivo: realizar el estudio químico y biológico sobre el extracto etanólico del epicarpio de Crescentia cujete L. Métodos: se recolectó el material vegetal y se obtuvo el extracto etanólico total. Luego se realizó el tamizaje preliminar fitoquímico, los ensayos físico-químicos directos sobre el material vegetal, la cuantificación de metales pesados y, finalmente, el estudio biológico frente a larvas de Aedes aegypti L. (Culicidae) en estadios III y IV, larvas de...
Tipo: Journal article
Palavras-chave: Crescentia cujete; Totumo; Aedes aegypti; Artemia salina; Allium cepa.
Ano: 2011
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962011000400005

Toxicity of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa (Jack) seed kernel to Aedes aegypti (L.)
Provedor de dados: 106
Autores: Ekkarat Kaewnang-O; Aran Ngampongsai; Sanan Subhadhirasakul; Teerapol Srichana.
Larvicidal activity of various concentrations of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa (Jack) seed kernel was assayed on an Aedes aegypti (L.) test population under controlled laboratory conditions. Concentration levels of responses at 24, 48, 72, and 96 hrs were evaluated. The LC50 values of the fixed oil and the crude extract were 403.6 and 518.7 ppm, respectively. One hundred percent mortality in 24 hrs-post treatment was achieved at 2,000 and 4,000 ppm for the oil and crude extract, respectively. It suggested that the oil is more toxic to Ae. aegypti larvae than the crude extract. Further investigation suggested the occurrence of molting inhibition of Ae. aegypti larvae by the fixed oil and crude extract as indicated by the...
Tipo: Collection
Palavras-chave: Azadirachta excelsa; Aedes aegypti; Toxicity; Development; Histology; สะเดาเทียม; สารสกัด; ยุงลาย; ความเป็นพิษ; ผลตกค้าง; อัตราการรอด.
Ano: 2011
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5218

The occurrence of Aedes (Stegomyia) aegypti (Linnaeus) and Aedes (Stegomyia) albopictus (Skuse) in a rural area in Northern Paraná, Brazil and the associated Culicidae fauna
Provedor de dados: 104
Autores: Lopes,José.
To verify the possible occurrence of Aedes aegypti (Linnaeus, 1761) and Aedes albopictus (Skuse, 1894) in a rural area in Northern Paraná, Brazil, a water tank was installedon a farm, to work as an artificial breeding site. Collections were carried out every 15 days, during a period of 2 years. 12,876 Culicidae larvae, belonging to 10 different species, including Aedes aegypti and Aedes albopictus, were collected, indicating their occurrence.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culicidae; Larvae; Artificial container breeding; Aedes aegypti; Aedes albopictus.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000400012

Screening of plants found in the State of Amazonas, Brazil for activity against Aedes aegypti larvae
Provedor de dados: 36
Autores: Pohlit,Adrian Martin; Quinard,Etienne Louis Jacques; Nunomura,Sergio Massayoshi; Tadei,Wanderli Pedro; Hidalgo,Ari de Freitas; Pinto,Ana Cristina da Silva; Santos,Elba Vieira Mustafa dos; Morais,Sabrina Kelly Reis de; Saraiva,Rita De Cássia Guedes; Ming,Lin Chau; Alecrim,Alexandre Mascarenhas; Ferraz,Alfeu de Barros; Pedroso,Andreza Cristiana da Silva; Diniz,Elisangela Vieira; Finney,Ellen Kathryn; Gomes,Erika de Oliveira; Dias,Hercules Bezerra; Souza,Katiuscia dos Santos de; Oliveira,Laura Cristina Pereira de; Don,Luciana de Castro; Queiroz,Maria Mireide Andrade; Henrique,Marycleuma Campos; Santos,Mirian dos; Lacerda Júnior,Orivaldo da Silva; Pinto,Patrícia de Souza; Silva,Suniá Gomes; Graça,Yara Rodrigues.
Ethanol, methanol and water extracts representing mostly native plant species found in the Amazon region were prepared, respectively, by maceration, continuous liquid-solid extraction and infusion, followed by evaporation and freeze-drying. The freeze-dried extracts were tested for lethality toward Aedes aegypti larvae at test concentrations of 500 mg / mL. In general, methanol extracts exhibited the greatest larvicidal activity. The following 7 methanol extracts of (the parts of) the indicated plant species were the most active, resulting in 100% mortality in A. aegypti larvae: Tapura amazonica Poepp. (root), Piper aduncum L. (leaf and root), P. tuberculatum Jacq. (leaf, fruit and branch). and Simaba polyphylla (Cavalcante) W.W. Thomas (branch).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larvicide; Aedes aegypti; Tapura; Piper; Simaba; Amazonia.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672004000100012

Larvicidal, cytotoxic and genotoxic effects of aqueous leaf extract of Jatropha mollissima (Pohl) Baill
Provedor de dados: 3
Autores: Araújo, José Rafael Silva; Costa, Maria Wlly da Silva; Oliveira, Wallace Baldez; Cavalcante, Reginaldo Roris; Almeida, Pedro Marcos; Martins, Francielle Alline.
 The present study aimed to evaluate the larvicidal effect of aqueous leaf extract from Jatropha mollissima on the larvae of Aedes aegypti and analyze its cytotoxic and genotoxic activity in the Allium cepa test. Larvae of the mosquito were exposed to the negative and positive controls (distilled water and diflubenzuron, 0.003 mg mL-1, respectively) and to leaf extract concentrations of 0.001, 0.005, 0.01, 0.02, 0.04, 0.06, 0.08 and 0.1 mg mL-1. The mortality rate was evaluated every 24 hours over five days. For the cytotoxic and genotoxic analyses, roots of A. cepa were exposed to the negative (distilled water) and positive control (trifluralin, 0.84 ppm) and to different leaf extract concentrations (0.01, 0.1, 1 and 10 mg mL-1) for 24 hours. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Allium cepa test; Chromosome alterations; Medicinal plant.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34501

Chemical composition and biological activities of the essential oils from Vitex-agnus castus, Ocimum campechianum and Ocimum carnosum
Provedor de dados: 42
Autores: RICARTE,LARA P.; BEZERRA,GABRIELI P.; ROMERO,NIRLA R.; SILVA,HORLANDO C. DA; LEMOS,TELMA L.G.; ARRIAGA,ANGELA M. C.; ALVES,PÉRICLES B.; SANTOS,MARCELO B. DOS; MILITÃO,GARDENIA C.G.; SILVA,THIAGO D.S.; BRAZ-FILHO,RAIMUNDO; SANTIAGO,GILVANDETE M.P.
Abstract  The essential oils obtained by hydrodistillation from fresh leaves of Vitex agnus-castus and Ocimum campechianum, and from fresh inflorescences of Ocimum carnosum were analysed by GC-FID and GC-MS. The major components of V. agnus-castus essential oil were identified as 1,8-cineole (47.9%), terpinyl α-acetate (11.6%), sabinene (11.2%) and caryophyllene oxide (9.7%), while in the O. campechianum essential oil were eugenol (72.1%), β-elemene (6.8%), (E)-caryophyllene (6.4%) and bicyclogermacrene (5.2%). Linalool (79.0%), α-epi-cadinol (5.4%), terpinen-4-ol (3.2%) and 1,8-cineole (2.8%) were the major constituents in the O. carnosum essential oil. The essential oils were subsequently evaluated for their larvicidal and cytotoxic activities. Larval...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Cytotoxic activity; Lamiaceae; Larvicidal activity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100718

Water extracts of Brazilian leguminous seeds as rich sources of larvicidal compounds against Aedes aegypti L.
Provedor de dados: 42
Autores: Farias,Davi F.; Cavalheiro,Mariana G.; Viana,Martônio P.; Queiroz,Vanessa A.; Rocha-Bezerra,Lady C.B.; Vasconcelos,Ilka M.; Morais,Selene M.; Carvalho,Ana F.U.
This study assessed the toxicity of seed water extracts of 15 leguminous species upon Aedes aegypti larvae. A partial chemical and biochemical characterization of water extracts, as well as the assessment of their acute toxicity in mice, were performed. The extracts of Amburana cearensis, Anadenanthera macrocarpa, Dioclea megacarpa, Enterolobium contortisiliquum and Piptadenia moniliformis caused 100% of mortalit y after 1 to 3 h of exposure. They showed LC50 and LC90 values ranging from 0.43 ± 0.01 to 9.06 ± 0.12 mg/mL and from 0.71 ± 0.02 to 13.03 ± 0.15 mg/mL, respectively. Among the secondary metabolite constituents, the seed water extracts showed tannins, phenols, flavones, favonols, xanthones, saponins and alkaloids. The extracts also showed high...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Larvicidal compounds; Leguminous seeds; Water extracts.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300006

Larvicidal activity of the water extract of Moringa oleifera seeds against Aedes aegypti and its toxicity upon laboratory animals
Provedor de dados: 42
Autores: Ferreira,Paulo M.P.; Carvalho,Ana F.U.; Farias,Davi F.; Cariolano,Nara G.; Melo,Vânia M.M.; Queiroz,Maria G.R.; Martins,Alice M.C.; Machado-Neto,Joaquim G.
In this work, biological effects of the water extract of Moringa oleifera seeds (WEMOS) were assessed on eggs and 3rd instar larvae of Aedes aegypti and on its toxicity upon laboratory animals (Daphnia magna, mice and rats). Crude WEMOS showed a LC50 value of 1260µg/mL, causing 99.2 ± 2.9% larvae mortality within 24 h at 5200µg/mL, though this larvicidal activity has been lost completely at 80ºC/10 min. WEMOS did not demonstrate capacity to prevent egg hatching. After extensive dialyses of the crude WEMOS into watersoluble dialyzable (DF) and nondyalizable (NDF) fractions, only DF maintained its efficacy to kill larvae. Acute toxicity evaluations on daphnids (EC50 of 188.7µg/mL) and mice (LD50 of 446.5 mg/kg body weight) pointed out to low toxicity....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Daphnia magna; Larvicidal activity; Moringa oleifera seeds; Toxicity.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200007

A potent larvicidal agent against Aedes aegypti mosquito from cardanol
Provedor de dados: 42
Autores: PAIVA,DERISVALDO R.; LIMA,DÊNIS P. DE; AVVARI,NAGA P.; ARRUDA,EDUARDO J. DE; CABRINI,ISAIAS; MARQUES,MARIA RITA; SANTOS,EDSON A. DOS; BIAGGIO,FRANCISCO C.; SANGI,DIEGO P.; BEATRIZ,ADILSON.
ABSTRACT Cardanol is a constituent of Cashew Nut Shell Liquid that presents larvicidal activity against Aedes aegypti. The isolation of cardanol is somewhat troublesome, however, in this work we describe an efficient and inexpensive method to obtain it as a pure material. The compound was used as starting material to make chemical transformation leading to saturated cardanol, epoxides and, halohydrins. These derivatives were tested for toxicity against Aedes aegypti larvae. The results showed that iodohydrins are very promising compounds for making commercial products to combat the vector mosquito larvae presenting a LC50 of 0.0023 ppm after 72 h of exposure.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Insecticide; Larvicide; Phenolic lipids; CNSL.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200373

Evaluation of embryotoxic and embryostatic effects of the aqueous extract of Rhizophora mangle and tannic acid on eggs and larvae of Aedes aegypti
Provedor de dados: 42
Autores: RODRIGUES NETO,AGEU A.; GOMES JÚNIOR,PLÍNIO P.; SILVA,MAURICIO C.; LIMA,CLÁUDIA S.A.; YARA,RICARDO; GUIMARÃES,EMÍLIA B.; SANTANA,EDUARDA S. DE; SILVA,LUZIA A. DA; LIRA,EDUARDO J.R.V. DE; VIEIRA,JEYMESSON R.C.
ABSTRACT Rhizophora mangle is an abundant plant in mangroves and tannic acid is a polyphenol produced by the secondary metabolism of plants. The aim of the study was to evaluate the embryotoxic and embriostatic effects of the aqueous extract of R. mangle and synthetic tannic acid on eggs and larvae of Aedes aegypti. A. aegypti eggs were exposed in duplicate at concentrations of 250, 500, 750 and 1000 µg/mL of extract and tannic acid for a period of 14 days. Mineral water was used as a negative control. The eggs were observed and counted in a stereomicroscope (1.2x). In all extract concentrations there was stimulation in hatching in relation to the control, but only in concentration of 750 mg/mL it was statistically significant. In tannic acid (250µg/ml)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aedes aegypti; Embryostatic; Embryotoxic; Rhizophora mangle; Tannic acid.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502141

Isolation and Characterization of Midgut Lectin From Aedes aegypti (L.) (Diptera: Culicidae)
Provedor de dados: 52
Autores: Ayaad,Tahany Hassan; Al-Akeel,Rasha Khalifah; Olayan,Ebtisam.
ABSTRACT The present investigation deals with the isolation and characterization of a lectin from Aedes aegypti (Ae aegypti) female mid gut extract that agglutinates various mammalian red blood cells (RBCs) such as human three groups A, B, and O (RH+), mouse, rat, guinea-pig, sheep and goat erythrocytes. The highest activity of both crude and isolated mid gut lectins were detected against sheep RBCs. Using (NH4)2 SO4 fractionation, ion-exchange and mannose-CNBr-Sepharose 6B affinity chromatography techniques, Ae. aegypti midgut lectin (Aelec) was purified to homogeneity.Isoelectric focusing (IEF) and reducing SDS/PAGE revealed that the isolated mid gut lectin had isoelectric point (PI) of 5.90, and subunits approximate molecular weights of 35.50 and 27.35...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lectin; Purification; Characterization; Hemagglutination; Aedes aegypti; Mosquitoes.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000600905

Evaluation of toxic effects with transition metal ions, EDTA, SBTI and acrylic polymers on Aedes aegypti (L., 1762) (Diptera: Culicidae) and Artemia salina (artemidae)
Provedor de dados: 52
Autores: Arruda,Eduardo José de; Rossi,Ana Paula Leão; Porto,Karla Rejane de Andrade; Oliveira,Lincoln Carlos Silva de; Arakaki,Andrea Haruko; Scheidt,Gessiel Newton; Soccol,Carlos Ricardo.
This work aimed to evaluate the toxicity of some insecticides compounds on Aedes aegypti and Artemia salina larvae. Bioassays were carried out to evaluate the toxic effect after of 24 and 72 h using the compounds or associations. The LC10, LC50 and LC90 values were obtained and utilized for toxicity comparations. For Ae. aegypti, LC50 were 32.65 mg L-1 in 24 h for Na2[EDTA-Cu(II)] and total mortality in 72 h for SAP-Na2[EDTA-Cu(II)].
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect control; Aedes aegypti; Artemia salina.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200012

Molecular docking of Anopheles gambiae and Aedes aegypti glutathione S-transferases epsilon 2 (GSTE2) against usnic acid: an evidence of glutathione conjugation
Provedor de dados: 52
Autores: Maia,Rafael Trindade; Nadvorny,Daniela.
The aim of this study was to develop a theoretical model using Anopheles gambiae GSTE2 structure as template for Aedes aegypti GSTE2 by homology modeling Docking simulations were performed for both the enzymes against usnic acid in neutral and anionic forms. Ramachandran plot revealed that 93.9% of the GSTE2 model residues were located on most favored regions. Model evaluation was made by the ANOLEA and GROMOS analysis. Docking results indicated that the enzymes were able to form glutathione-conjugate with usnic acid in both the forms (anionic and neutral).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anopheles gambiae; Aedes aegypti; Molecular modeling; Insecticide resistance.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500689

São Paulo urban heat islands have a higher incidence of dengue than other urban areas
Provedor de dados: 55
Autores: Araujo,Ricardo Vieira; Albertini,Marcos Roberto; Costa-da-Silva,André Luis; Suesdek,Lincoln; Franceschi,Nathália Cristina Soares; Bastos,Nancy Marçal; Katz,Gizelda; Cardoso,Vivian Ailt; Castro,Bronislawa Ciotek; Capurro,Margareth Lara; Allegro,Vera Lúcia Anacleto Cardoso.
Urban heat islands are characterized by high land surface temperature, low humidity, and poor vegetation, and considered to favor the transmission of the mosquito-borne dengue fever that is transmitted by the Aedes aegypti mosquito. We analyzed the recorded dengue incidence in Sao Paulo city, Brazil, in 2010-2011, in terms of multiple environmental and socioeconomic variables. Geographical information systems, thermal remote sensing images, and census data were used to classify city areas according to land surface temper- ature, vegetation cover, population density, socioeconomic status, and housing standards. Of the 7415 dengue cases, a majority (93.1%) mapped to areas with land surface temperature &gt;28 ◦ C. The dengue incidence rate (cases per 100,000...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Urban heat islands; Land surface temperature; Vegetation cover; Dengue; Aedes aegypti.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000200146

Differences in the replicative capacities of clinical isolates of dengue virus in C6/36 cells and in urban populations of Aedes aegypti from Colombia, South America
Provedor de dados: 55
Autores: Quintero-Gil,Diana Carolina; Uribe-Yepes,Alexander; Ospina,Marta; Díaz,Francisco Javier; Martinez-Gutierrez,Marlen.
ABSTRACT Dengue, the most prevalent arboviral disease worldwide, is caused by any of the four dengue virus (DENV) serotypes that co-circulate constantly in hyperendemic areas such as Medellin (Colombia), and these serotypes are transmitted by mosquitoes of the genus Aedes. In this study, we evaluated the replicative capacity of strains isolated in Medellin between 2003 and 2007 in C6/36 cells and in colonies of Aedes aegypti collected during 2010-2011 from high or low-incidence areas within the same city. The phylogenetic analysis grouped isolates according to the predominant genotypes found in the Americas, and the in vitro characterization showed differences in the morphological changes induced by the isolates of each of the isolated serotypes compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dengue; Viral replication; Vector competence; Aedes aegypti; C6/36 cells; Colombia.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000400257

Identification of Zika virus in immature phases of Aedes aegypti and Aedes albopictus: a surveillance strategy for outbreak anticipation
Provedor de dados: 56
Autores: Maniero,V.C.; Rangel,P.S.C.; Coelho,L.M.C.; Silva,C.S.B.; Aguiar,R.S.; Lamas,C.C.; Cardozo,S.V.
A progressive increase in the circulation of arboviruses in tropical countries has been observed, accounting for 700,000 yearly deaths in the world. The main objective of this article was to identify the presence of Zika (ZIKV), dengue (DENV), and Chikungunya (CHIKV) viruses in immature stages of Aedes aegypti and Ae. albopictus. Household collections of immature phases of the vectors were carried out in the years 2015 and 2016. A total of 2902 dwellings were visited and the rate of infestation with larvae and pupae of Aedes mosquitoes was 283/1462 (19.4%) in March 2015 and 55/1440 (3.8%) in June 2015. In March 2015, 907 larvae/pupae were collected (583 or 64.3% of Ae. aegypti and 324 or 35.7% of Ae. albopictus) while in June 2015 there was a reduction in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zika virus; Aedes aegypti; Aedes albopictus; Arbovirus; Georeferencing; Xenomonitoring.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019001100605