The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Ahid, Sílvia Maria Mendes - One of the best experts on this subject based on the ideXlab platform.
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Parasitismo por Ctenocephalides felis felis em ovinos deslanados em Pendências, Rio Grande do Norte
Revista Brasileira de Higiene e Sanidade Animal, 2014Co-Authors: Moura, Gabriela Hemylin Ferreira, Lima, Mikael Almeida, Gadelha, Ivana Cristina Nunes, Zuliete Aliona Araújo De ,souza Fonseca, Pereira, Josivania Soares, Ahid, Sílvia Maria MendesAbstract:O parasitismo por pulgas em pequenos ruminantes pode interferir severamente na sanidade do rebanho, pois os Pulicidae podem transmitir agentes patogênicos, favorecer a infecção por cestódeos e o hematofagismo, causando lesões de pele diminuindo o valor econômico do couro. Objetivou-se relatar o parasitismo por Siphonaptera da família Pulicidae em ovinos deslanados em Pendências, Rio Grande do Norte (RN), Brasil. Todos os ovinos inspecionados estavam parasitados por Ctenocephalides felis felis em diferentes graus de infestação e estágios de vida. Fato este, constitui um importante problema sanitário na região semiárida do Rio Grande do Norte
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Parasitismo por Ctenocephalides felis felis em ovinos deslanados em Pendências, Rio Grande do Norte
2014Co-Authors: Moura, Gabriela Hemylin Ferreira, Lima, Mikael Almeida, Gadelha, Ivana Cristina Nunes, Zuliete Aliona Araújo De ,souza Fonseca, Pereira, Josivania Soares, Ahid, Sílvia Maria MendesAbstract:The flea parasitism in small ruminants can severely interfere with the health of the herd, the Pulicidae can transmit pathogens agents promote infection by cestodes and the hematophagism cause skin wounds reducing the economic value of the leather. The aim was to report the parasitism by Siphonaptera of the Pulicidae family in hair sheep Pendencias, Rio Grande do Norte (RN), Brazil. the sheeps inspected 33% (25) were infected by Ctenocephalides felis felis in different infestation degrees and stages of the life, with no distinction of sex and age. This indeed is an important health problem in the semiarid west region of Rio Grande do NorteO parasitismo por pulgas em pequenos ruminantes pode interferir severamente na sanidade do rebanho, pois os Pulicidae podem transmitir agentes patogênicos, favorecer a infecção por cestódeos e o hematofagismo, causando lesões de pele diminuindo o valor econômico do couro. Objetivou-se relatar o parasitismo por Siphonaptera da família Pulicidae em ovinos deslanados em Pendências, Rio Grande do Norte (RN), Brasil. Todos os ovinos inspecionados estavam parasitados por Ctenocephalides felis felis em diferentes graus de infestação e estágios de vida. Fato este, constitui um importante problema sanitário na região semiárida do Rio Grande do Norte
Nora J Besansky - One of the best experts on this subject based on the ideXlab platform.
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phylogenetic analysis and temporal diversification of mosquitoes diptera culicidae based on nuclear genes and morphology
BMC Evolutionary Biology, 2009Co-Authors: Kyanne R Reidenbach, Ralph E Harbach, Shelley Cook, Matthew A Bertone, Brian M Wiegmann, Nora J BesanskyAbstract:Background Phylogenetic analyses provide a framework for examining the evolution of morphological and molecular diversity, interpreting patterns in biogeography, and achieving a stable classification. The generic and suprageneric relationships within mosquitoes (Diptera: Culicidae) are poorly resolved, making these subjects difficult to address.
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analysis of the complete mitochondrial dna from anopheles funestus an improved dipteran mitochondrial genome annotation and a temporal dimension of mosquito evolution
Molecular Phylogenetics and Evolution, 2006Co-Authors: Jaroslaw Krzywinski, Olga Grushko, Nora J BesanskyAbstract:Abstract Virtually no information regarding timing of deep lineage divergences within mosquito family (Culicidae) exists, which poses an important problem in the postgenomic era. To address this issue, the complete 15,354 bp mitochondrial genome of Anopheles funestus was assembled from both mtDNA and cDNA sequences generated from transcripts of the mtDNA-encoded protein and rRNA genes. Analysis of the transcript information allowed an improved genome annotation, revealing that the translation initiation codon for the cox1 gene is TCG, rather than atypical, longer codons proposed in several other insects. The 5′ends of nad1 and nad5 transcripts begin with TTG and GTG triplets, respectively, which apparently serve as the translation initiators for those genes. We used all the A. funestus mtDNA gene sequences and three other publicly available mosquito mtDNA genomes for the estimation of divergence time points within Culicidae. The maximum likelihood date estimates for the splits between Anopheles and Aedes (∼145–200 Mya), between Anopheles subgenera Cellia and Anopheles (∼90–106 Mya), and between lineages within subgenus Anopheles (∼70–85 Mya) inferred from protein-coding genes are roughly twice as high as the dates based on RNA gene sequences. Although existing evidence does not unequivocally favor one of the alternatives, fossil-based predictions of the age of the family Culicidae are in better agreement with dates inferred from protein-coding genes.
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analysis of the complete mitochondrial dna from anopheles funestus an improved dipteran mitochondrial genome annotation and a temporal dimension of mosquito evolution
Molecular Phylogenetics and Evolution, 2006Co-Authors: Jaroslaw Krzywinski, Olga Grushko, Nora J BesanskyAbstract:Virtually no information regarding timing of deep lineage divergences within mosquito family (Culicidae) exists, which poses an important problem in the postgenomic era. To address this issue, the complete 15,354 bp mitochondrial genome of Anopheles funestus was assembled from both mtDNA and cDNA sequences generated from transcripts of the mtDNA-encoded protein and rRNA genes. Analysis of the transcript information allowed an improved genome annotation, revealing that the translation initiation codon for the cox1 gene is TCG, rather than atypical, longer codons proposed in several other insects. The 5'ends of nad1 and nad5 transcripts begin with TTG and GTG triplets, respectively, which apparently serve as the translation initiators for those genes. We used all the A. funestus mtDNA gene sequences and three other publicly available mosquito mtDNA genomes for the estimation of divergence time points within Culicidae. The maximum likelihood date estimates for the splits between Anopheles and Aedes (approximately 145-200 Mya), between Anopheles subgenera Cellia and Anopheles (approximately 90-106 Mya), and between lineages within subgenus Anopheles (approximately 70-85 Mya) inferred from protein-coding genes are roughly twice as high as the dates based on RNA gene sequences. Although existing evidence does not unequivocally favor one of the alternatives, fossil-based predictions of the age of the family Culicidae are in better agreement with dates inferred from protein-coding genes.
Moura, Gabriela Hemylin Ferreira - One of the best experts on this subject based on the ideXlab platform.
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Parasitismo por Ctenocephalides felis felis em ovinos deslanados em Pendências, Rio Grande do Norte
Revista Brasileira de Higiene e Sanidade Animal, 2014Co-Authors: Moura, Gabriela Hemylin Ferreira, Lima, Mikael Almeida, Gadelha, Ivana Cristina Nunes, Zuliete Aliona Araújo De ,souza Fonseca, Pereira, Josivania Soares, Ahid, Sílvia Maria MendesAbstract:O parasitismo por pulgas em pequenos ruminantes pode interferir severamente na sanidade do rebanho, pois os Pulicidae podem transmitir agentes patogênicos, favorecer a infecção por cestódeos e o hematofagismo, causando lesões de pele diminuindo o valor econômico do couro. Objetivou-se relatar o parasitismo por Siphonaptera da família Pulicidae em ovinos deslanados em Pendências, Rio Grande do Norte (RN), Brasil. Todos os ovinos inspecionados estavam parasitados por Ctenocephalides felis felis em diferentes graus de infestação e estágios de vida. Fato este, constitui um importante problema sanitário na região semiárida do Rio Grande do Norte
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Parasitismo por Ctenocephalides felis felis em ovinos deslanados em Pendências, Rio Grande do Norte
2014Co-Authors: Moura, Gabriela Hemylin Ferreira, Lima, Mikael Almeida, Gadelha, Ivana Cristina Nunes, Zuliete Aliona Araújo De ,souza Fonseca, Pereira, Josivania Soares, Ahid, Sílvia Maria MendesAbstract:The flea parasitism in small ruminants can severely interfere with the health of the herd, the Pulicidae can transmit pathogens agents promote infection by cestodes and the hematophagism cause skin wounds reducing the economic value of the leather. The aim was to report the parasitism by Siphonaptera of the Pulicidae family in hair sheep Pendencias, Rio Grande do Norte (RN), Brazil. the sheeps inspected 33% (25) were infected by Ctenocephalides felis felis in different infestation degrees and stages of the life, with no distinction of sex and age. This indeed is an important health problem in the semiarid west region of Rio Grande do NorteO parasitismo por pulgas em pequenos ruminantes pode interferir severamente na sanidade do rebanho, pois os Pulicidae podem transmitir agentes patogênicos, favorecer a infecção por cestódeos e o hematofagismo, causando lesões de pele diminuindo o valor econômico do couro. Objetivou-se relatar o parasitismo por Siphonaptera da família Pulicidae em ovinos deslanados em Pendências, Rio Grande do Norte (RN), Brasil. Todos os ovinos inspecionados estavam parasitados por Ctenocephalides felis felis em diferentes graus de infestação e estágios de vida. Fato este, constitui um importante problema sanitário na região semiárida do Rio Grande do Norte
Monique Moraes Lambert - One of the best experts on this subject based on the ideXlab platform.
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activity of syzygium aromaticum essential oil and its main constituent eugenol in the inhibition of the development of ctenocephalides felis felis and the control of adults
Veterinary Parasitology, 2020Co-Authors: Monique Moraes Lambert, Diefrey Ribeiro Campos, Barbara Rauta De Avelar, Debora Azevedo Borges, Fabio Barbour Scott, Thais Paes Ferreira, Yara Peluso Cid, Fabio Boylan, Douglas Siqueira De Almeida Chaves, Katherina CoumendourosAbstract:Abstract The aim of this study was to evaluate the in vitro activity of Syzygium aromaticum essential oil (SAEO) and its main constituent eugenol (EG) against adult fleas and their action in the maturation of eggs into adults of Ctenocephalides felis felis. In order to evaluate the pulicidal activity, 10 adult fleas were exposed to a filter paper impregnated with SAEO and EG at increasing concentrations of 0.047; 0.094; 0.188; 0.375; 0.750; 1.50; 3.00; 6.00; 12.00 and 24.00 μg cm−2. Flea mortality was evaluated 24 and 48 h after exposure. In order to evaluate the inhibition of the maturation of eggs into adults, 10 eggs were exposed to filter paper impregnated with SAEO and EG at the same concentrations used in the pulicidal test, and the evaluation was performed 30 days after incubation. Untreated repetitions were maintained in both studies (control group). The lethal concentration 50 (LC50) of pulicidal activity to SAEO was 5.70 μg cm−2 in 24 h and 3.91 μg cm−2 in 48 h. The LC90 was 16.10 μg cm−2 and 15.80 μg cm−2 in 24 and 48 h, respectively. The LC50 of inhibition of the maturation of eggs into adults was 0.30 μg cm−2 and the LC90 3.44 μg cm−2. The LC50 of pulicidal activity to EG was 2.40 μg cm−2 in 24 h and 1.40 μg cm−2 in 48 h; the LC90 was 8.10 μg cm−2 and 3.70 μg cm−2 in 24 h and 48 h, respectively. The LC50 of inhibition of the maturation of eggs into adults was 0.10 μg cm−2 and the LC90 0.68 μg cm−2. Based on the results obtained, it is possible to conclude that the both SAEO and EG have in vitro pulicidal activity as well as acting as inhibitors of the maturation of eggs into adults of the flea C. felis felis.
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Eficácia da associação de fipronil e permetrina no controle de Ctenocephalides felis felis e Rhipicephalus sanguineus sensu lato em cães artificialmente infestados
Sociedade de Medicina Veterinária do Estado do Rio de Janeiro, 2018Co-Authors: Monique Moraes Lambert, Diefrey Ribeiro Campos, Barbara Rauta De Avelar, Rosangela Rodrigues Dos Santos, Debora Azevedo Borges, Rayane Christine Pereira De Assis, Fabio Barbour Scott, Katherina ComendourosAbstract:Este estudo foi realizado com o objetivo de avaliar a eficácia carrapaticida e pulicida de uma formulação “spot on” contendo a associação de fipronil 6,01% + permetrina 44,88%, no controle de Rhipicephalus sanguineus e Ctenocephalides felis felis em cães artificialmente infestados. Foram utilizados 12 cães da raça beagle, de ambos os sexos, com idade de dois a cinco anos, divididos em dois grupos: controle e tratado. Os cães foram infestados com 100 exemplares de C. felis felis e 50 exemplares de R. sanguineus. As infestações foram realizadas nos dias, -2, +5, +12, +19, +26, +33 para carrapato e com pulgas nos dias, -2+5, +12, +19, +26, +33, +40, +47+54. A avaliação da eficácia carrapaticida ocorreu nos dias +2, +7, +14, +21, +28, +35. A avaliação da eficácia pulicida seguiram nos dias +2, +7, +14, +21, +28, +35, +42, +49, +56 para pulgas. A eficácia carrapaticida foi de: 100%; 96,91%; 92,86%; 91,10%; 54,91% e 51,95% para os dias +2, +7, +14, +21, +28 e +35 respectivamente, enquanto a eficácia pulicida foi de 100% até o dia +28 e de 97,44% para do dia +35, 97,41% para o dia +42, 82,87% para o dia +49 e 75,00% para o dia +56. Com base nos resultados obtidos neste estudo é possível concluir que a associação de fipronil 6,01% e permetrina 44,88% foi eficaz para o controle de C. felis felis e R. sanguineus em cães artificialmente infestados
Katherina Coumendouros - One of the best experts on this subject based on the ideXlab platform.
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activity of syzygium aromaticum essential oil and its main constituent eugenol in the inhibition of the development of ctenocephalides felis felis and the control of adults
Veterinary Parasitology, 2020Co-Authors: Monique Moraes Lambert, Diefrey Ribeiro Campos, Barbara Rauta De Avelar, Debora Azevedo Borges, Fabio Barbour Scott, Thais Paes Ferreira, Yara Peluso Cid, Fabio Boylan, Douglas Siqueira De Almeida Chaves, Katherina CoumendourosAbstract:Abstract The aim of this study was to evaluate the in vitro activity of Syzygium aromaticum essential oil (SAEO) and its main constituent eugenol (EG) against adult fleas and their action in the maturation of eggs into adults of Ctenocephalides felis felis. In order to evaluate the pulicidal activity, 10 adult fleas were exposed to a filter paper impregnated with SAEO and EG at increasing concentrations of 0.047; 0.094; 0.188; 0.375; 0.750; 1.50; 3.00; 6.00; 12.00 and 24.00 μg cm−2. Flea mortality was evaluated 24 and 48 h after exposure. In order to evaluate the inhibition of the maturation of eggs into adults, 10 eggs were exposed to filter paper impregnated with SAEO and EG at the same concentrations used in the pulicidal test, and the evaluation was performed 30 days after incubation. Untreated repetitions were maintained in both studies (control group). The lethal concentration 50 (LC50) of pulicidal activity to SAEO was 5.70 μg cm−2 in 24 h and 3.91 μg cm−2 in 48 h. The LC90 was 16.10 μg cm−2 and 15.80 μg cm−2 in 24 and 48 h, respectively. The LC50 of inhibition of the maturation of eggs into adults was 0.30 μg cm−2 and the LC90 3.44 μg cm−2. The LC50 of pulicidal activity to EG was 2.40 μg cm−2 in 24 h and 1.40 μg cm−2 in 48 h; the LC90 was 8.10 μg cm−2 and 3.70 μg cm−2 in 24 h and 48 h, respectively. The LC50 of inhibition of the maturation of eggs into adults was 0.10 μg cm−2 and the LC90 0.68 μg cm−2. Based on the results obtained, it is possible to conclude that the both SAEO and EG have in vitro pulicidal activity as well as acting as inhibitors of the maturation of eggs into adults of the flea C. felis felis.
