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  1 / 712 MEDLINE  
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[PMID]:28570608
[Au] Autor:Jiggins FM
[Ad] Endereço:Department of Genetics, University of Cambridge, Cambridge, United Kingdom.
[Ti] Título:The spread of Wolbachia through mosquito populations.
[So] Source:PLoS Biol;15(6):e2002780, 2017 Jun.
[Is] ISSN:1545-7885
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In many regions of the world, mosquito-borne viruses pose a growing threat to human health. As an alternative to traditional control measures, the bacterial symbiont Wolbachia has been transferred from Drosophila into the mosquito Aedes aegypti, where it can block the transmission of dengue and Zika viruses. A recent paper has reported large-scale releases of Wolbachia-infected Ae. aegypti in the city of Cairns, Australia. Wolbachia, which is maternally transmitted, invaded and spread through the populations due to a sperm-egg incompatibility called cytoplasmic incompatibility. Over a period of 2 years, a wave of Wolbachia infection slowly spread out from 2 release sites, demonstrating that it will be possible to deploy this strategy in large urban areas. In line with theoretical predictions, Wolbachia infection at a third, smaller release site collapsed due to the immigration of Wolbachia-free mosquitoes from surrounding areas. This remarkable field experiment has both validated theoretical models of Wolbachia population dynamics and demonstrated that this is a viable strategy to modify mosquito populations.
[Mh] Termos MeSH primário: Aedes/microbiologia
Agentes de Controle Biológico/imunologia
Saúde Global
Mosquitos Vetores/microbiologia
Simbiose
Wolbachia/imunologia
[Mh] Termos MeSH secundário: Aedes/crescimento & desenvolvimento
Aedes/imunologia
Aedes/virologia
Distribuição Animal
Animais
Agentes de Controle Biológico/efeitos adversos
Agentes de Controle Biológico/isolamento & purificação
California
Colapso da Colônia
Dengue/prevenção & controle
Dengue/transmissão
Drosophila simulans/crescimento & desenvolvimento
Drosophila simulans/imunologia
Drosophila simulans/microbiologia
Feminino
Seres Humanos
Masculino
Mosquitos Vetores/imunologia
Mosquitos Vetores/virologia
Queensland
Infecções por Rickettsiaceae/imunologia
Infecções por Rickettsiaceae/microbiologia
Infecções por Rickettsiaceae/transmissão
Wolbachia/crescimento & desenvolvimento
Wolbachia/isolamento & purificação
Wolbachia/patogenicidade
Infecção pelo Zika virus/prevenção & controle
Infecção pelo Zika virus/transmissão
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Biological Control Agents)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170602
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pbio.2002780


  2 / 712 MEDLINE  
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[PMID]:28403227
[Au] Autor:Sumi T; Miura K; Miyatake T
[Ad] Endereço:Laboratory of Evolutionary Ecology, Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama, Japan.
[Ti] Título:Wolbachia density changes seasonally amongst populations of the pale grass blue butterfly, Zizeeria maha (Lepidoptera: Lycaenidae).
[So] Source:PLoS One;12(4):e0175373, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Previous studies showed that the survival rate of Wolbachia decreases under high temperature in incubators. It is also known that a high density of Wolbachia in the host body reduces the host emergence rate, while low densities fail to change reproduction rates. However, few studies have examined the density of Wolbachia in hosts in the field. Here, we focus on Wolbachia infection of the pale grass blue butterfly, Zizeeria maha (Lepidoptera: Lycaenidae), which is distributed throughout the Japanese islands. We examined the rate and density of Wolbachia infection in the bodies of butterflies at thirteen locations in Japan. At seven of these places, we collected butterflies in different seasons to determine seasonal differences in the infection rate and density and found that Wolbachia density has seasonal differences within the same population. Moreover, to determine whether Wolbachia density has a geographical cline, we compared the infection density of Wolbachia amongst all geographical populations. In addition, we determined the sequences of Wolbachia wsp and host mtDNA CO1 haplotypes of all populations. The results showed that Wolbachia density increased in early summer and decreased in autumn. Further, the density of Wolbachia infecting the same strain of Z. maha varied amongst populations, although no tendency in geographical cline was observed.
[Mh] Termos MeSH primário: Borboletas/microbiologia
Interações Hospedeiro-Patógeno
Wolbachia/fisiologia
[Mh] Termos MeSH secundário: Animais
Borboletas/genética
Borboletas/fisiologia
DNA Mitocondrial/genética
Feminino
Haplótipos
Japão
Masculino
Filogenia
Reprodução
Infecções por Rickettsiaceae/veterinária
Estações do Ano
Wolbachia/genética
Wolbachia/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170504
[Lr] Data última revisão:
170504
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170414
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0175373


  3 / 712 MEDLINE  
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[PMID]:28400593
[Au] Autor:Kho KL; Koh FX; Hasan LI; Wong LP; Kisomi MG; Bulgiba A; Nizam QN; Tay ST
[Ad] Endereço:Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
[Ti] Título:Rickettsial seropositivity in the indigenous community and animal farm workers, and vector surveillance in Peninsular Malaysia.
[So] Source:Emerg Microbes Infect;6(4):e18, 2017 Apr 12.
[Is] ISSN:2222-1751
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Rickettsioses are emerging zoonotic diseases that are often neglected in many countries in Southeast Asia. Rickettsial agents are transmitted to humans through exposure to infected arthropods. Limited data are available on the exposure of indigenous community and animal farm workers to the aetiological agents and arthropod vectors of rickettsioses in Peninsular Malaysia. Serological analysis of Rickettsia conorii and Rickettsia felis was performed for 102 individuals from the indigenous community at six rural villages and 87 workers from eight animal farms in Peninsular Malaysia in a cross-sectional study. The indigenous community had significantly higher seropositivity rates for R. conorii (P<0.001) and R. felis (P<0.001), as compared to blood donors from urban (n=61). Similarly, higher seropositivity rates for R. conorii (P=0.046) and R. felis (P<0.001) were noted for animal farm workers, as compared to urban blood donors. On the basis of the sequence analysis of gltA, ompA and ompB, various spotted fever group rickettsiae closely related to R. raoultii, R. heilongjiangensis, R. felis-like organisms, R. tamurae, Rickettsia sp. TCM1, R. felis, Rickettsia sp. LON13 and R. hulinensis were identified from tick/flea samples in animal farms, indigenous villages and urban areas. This study describes rickettsial seropositivity of the Malaysian indigenous community and animal farm workers, and provides molecular evidence regarding the presence of rickettsial agents in ticks/fleas infesting domestic animals in Peninsular Malaysia.
[Mh] Termos MeSH primário: Anticorpos Antibacterianos/sangue
Vetores Artrópodes/microbiologia
Fazendeiros
Grupos Populacionais
Rickettsia conorii/imunologia
Rickettsia felis/imunologia
Infecções por Rickettsiaceae/epidemiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Animais
Criança
Estudos Transversais
Monitoramento Epidemiológico
Feminino
Seres Humanos
Malásia/epidemiologia
Masculino
Meia-Idade
Estudos Soroepidemiológicos
Sifonápteros
Carrapatos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Bacterial)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170608
[Lr] Data última revisão:
170608
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170413
[St] Status:MEDLINE
[do] DOI:10.1038/emi.2017.4


  4 / 712 MEDLINE  
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[PMID]:28353525
[Au] Autor:Hananiya A; Douglas LC; Fagan M
[Ad] Endereço:From the Divisions of *Pediatric Infectious Disease, †Pediatric Hospital Medicine, and ‡Pediatric Emergency Medicine, Department of Pediatrics, Children's Hospital at Montefiore/Albert Einstein College of Medicine, Bronx NY.
[Ti] Título:Rickettsialpox in a Pediatric Patient.
[So] Source:Pediatr Emerg Care;33(4):260-262, 2017 Apr.
[Is] ISSN:1535-1815
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Rickettsialpox is a rare vector-borne rickettsiosis that manifests in hosts living in urban populations, particularly in New York City. The following is a case discussion of a 12-year-old girl with history of fever and right-ankle swelling. She was initially evaluated and treated for cellulitis. She later developed a maculopapular rash completing the classic triad for rickettsialpox: black eschar, papular rash, and fever. Her convalescent rickettsial titers returned positive, confirming the diagnosis of rickettsialpox.
[Mh] Termos MeSH primário: Traumatismos do Tornozelo/etiologia
Infecções por Rickettsiaceae/diagnóstico
[Mh] Termos MeSH secundário: Criança
Serviço Hospitalar de Emergência
Feminino
Seres Humanos
Medicina de Emergência Pediátrica
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170330
[St] Status:MEDLINE
[do] DOI:10.1097/PEC.0000000000001088


  5 / 712 MEDLINE  
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[PMID]:27707682
[Au] Autor:Hofmann-Lehmann R; Wagmann N; Meli ML; Riond B; Novacco M; Joekel D; Gentilini F; Marsilio F; Pennisi MG; Lloret A; Carrapiço T; Boretti FS
[Ad] Endereço:Clinical Laboratory, Vetsuisse Faculty, University of Zurich, Switzerland.
[Ti] Título:Detection of 'Candidatus Neoehrlichia mikurensis' and other Anaplasmataceae and Rickettsiaceae in Canidae in Switzerland and Mediterranean countries.
[Ti] Título:Nachweis von 'Candidatus Neoehrlichia mikurensis' und anderen Anaplasmataceae und Rickettsiaceae in Kaniden in der Schweiz und in Mittelmeerländern..
[So] Source:Schweiz Arch Tierheilkd;158(10):691-700, 2016 Oct.
[Is] ISSN:0036-7281
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: 'Candidatus Neoehrlichia mikurensis' is an emerging tick-borne zoonotic agent that primarily affects immunocompromised human patients. Dogs and foxes are frequently exposed to ticks, and both species are in close proximity to humans. This is the first study to systematically investigate the occurrence of 'Candidatus Neoehrlichia mikurensis' in Canidae in Europa. We analyzed 1'739 blood samples from dogs in Switzerland, Italy, Spain and Portugal and 162 blood samples from free-ranging red foxes (Vulpes vulpes) in Switzerland. All samples were tested using a previously described multiplex real-time PCR for the Anaplasmataceae family, the 'Candidatus Neoehrlichia' genus and the 'Candidatus Neoehrlichia mikurensis' species. All Anaplasmataceae positive samples were subsequently tested using specific real-time PCRs for Anaplasma phagocytophilum, Anaplasma platys, Ehrlichia canis and Rickettsia helvetica. Among the tested animals, one dog from Zurich tested positive for 'Candidatus Neoehrlichia mikurensis'. The 12-year old West Highland white terrier had been splenectomized 3 months prior to the blood collection and presented with polyuria/polydipsia. Fanconi syndrome was diagnosed based on glucosuria with normoglycemia and hyperaminoaciduria. A. platys and E. canis were detected in 14/249 dogs from Sicily and Portugal; two of the dogs were coinfected with both agents. Four Swiss foxes tested positive for A. phagocytophilium. R. helvetica was detected for the first time in a red fox. In conclusion, 'Candidatus Neoehrlichia mikurensis' infection should be considered in sick dogs, particularly when immunocompromised. The pathogen seems not to be widespread in Canidae in the investigated countries. Conversely, other Anaplasmataceae were more readily detected in dogs and foxes.
[Mh] Termos MeSH primário: Infecções por Anaplasmataceae/veterinária
Doenças do Cão/diagnóstico
Doenças do Cão/epidemiologia
Infecções por Rickettsiaceae/veterinária
Zoonoses/diagnóstico
Zoonoses/epidemiologia
[Mh] Termos MeSH secundário: Anaplasmataceae/isolamento & purificação
Infecções por Anaplasmataceae/diagnóstico
Infecções por Anaplasmataceae/epidemiologia
Infecções por Anaplasmataceae/microbiologia
Animais
Coinfecção
Doenças do Cão/microbiologia
Cães
Raposas/microbiologia
Genes Bacterianos/genética
Região do Mediterrâneo
Reação em Cadeia da Polimerase/veterinária
Prevalência
Rickettsiaceae/isolamento & purificação
Infecções por Rickettsiaceae/epidemiologia
Infecções por Rickettsiaceae/microbiologia
Suíça
Zoonoses/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1612
[Cu] Atualização por classe:170119
[Lr] Data última revisão:
170119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161007
[St] Status:MEDLINE
[do] DOI:10.17236/sat00087


  6 / 712 MEDLINE  
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[PMID]:27367015
[Au] Autor:Thomas R; Puranik P; Kalal B; Britto C; Kamalesh S; Rego S; Shet A
[Ad] Endereço:St Johns' Medical College Hospital, Bangalore, India. rwituja.thomas@gmail.com.
[Ti] Título:Five-year analysis of rickettsial fevers in children in South India: Clinical manifestations and complications.
[So] Source:J Infect Dev Ctries;10(6):657-61, 2016 Jun 30.
[Is] ISSN:1972-2680
[Cp] País de publicação:Italy
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Rickettsial infections are re-emerging in the Indian subcontinent, especially among children. Understanding geographical and clinical epidemiology will facilitate early diagnosis and management. METHODOLOGY: Children aged <18yrs hospitalized with clinically-diagnosed rickettsial fever were reviewed retrospectively. Frequency distributions and odds ratios were calculated from tabulated data. RESULTS: Among 262 children hospitalized between January 2008-December 2012, median age was five years, and 61% were male children. Hospitalized cases increased steadily every year, with the highest burden (74%) occurring between September and January each year. Mean duration of fever was 11.5 days. Rash was present in 54.2% (142/262) of children, with 37.0% involving palms and soles. Prevalence of malnutrition was high (45% of children were underweight and 28% had stunting). Retinal vasculitis was seen in 13.7% (36/262), and the risk appeared higher in females. Severe complications were seen in 29% (purpura fulminans, 7.6%; meningitis and meningoencephalitis, 28%; septic shock, 1.9%; acute respiratory distress syndrome, 1.1%). Complications were more likely to occur in anemic children. Positive Weil-Felix test results (titers ≥1:160) were seen in 70% of cases. Elevated OX-K titers suggestive of scrub typhus were seen in 80% (147/184). Patients were treated with chloramphenicol (32%) or doxycycline (68%). Overall mortality among hospitalised children was 1.9%. CONCLUSIONS: This five-year analysis from southern India shows a high burden and increasing trend of rickettsial infections among children. The occurrence of retinal vasculitis and a high rate of severe complications draw attention to the need for early diagnosis and management of these infections.
[Mh] Termos MeSH primário: Infecções por Rickettsiaceae/epidemiologia
Infecções por Rickettsiaceae/patologia
[Mh] Termos MeSH secundário: Adolescente
Criança
Pré-Escolar
Demografia
Feminino
Seres Humanos
Índia/epidemiologia
Lactente
Masculino
Prevalência
Vasculite Retiniana/epidemiologia
Vasculite Retiniana/patologia
Estudos Retrospectivos
Infecções por Rickettsiaceae/complicações
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170206
[Lr] Data última revisão:
170206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160702
[St] Status:MEDLINE
[do] DOI:10.3855/jidc.6822


  7 / 712 MEDLINE  
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[PMID]:27160085
[Au] Autor:Maia C; Altet L; Serrano L; Cristóvão JM; Tabar MD; Francino O; Cardoso L; Campino L; Roura X
[Ad] Endereço:Global Health and Tropical Medicine, Medical Parasitology Unit, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal. carlamaia@ihmt.unl.pt.
[Ti] Título:Molecular detection of Leishmania infantum, filariae and Wolbachia spp. in dogs from southern Portugal.
[So] Source:Parasit Vectors;9(1):170, 2016 05 10.
[Is] ISSN:1756-3305
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Leishmaniosis caused by the protozoan Leishmania infantum and dirofilariosis caused by the nematodes Dirofilaria immitis or Dirofilaria repens are vector-borne zoonoses widely present in the Mediterranean basin. In addition, some studies reported that the endosymbiont Wolbachia spp. play a role in the biology and pathogenesis of filarial parasites. The aim of this work was to evaluate the frequency of mono- and co-infections by L. infantum, filariae and Wolbachia spp. and their association with clinical signs in dogs from the south of Portugal. Leishmanial, filarial and Wolbachia spp. DNA were evaluated by specific real-time polymerase chain reaction (qPCR) assays in blood samples from 230 dogs. FINDINGS: One hundred and thirty-nine (60.4 %) dogs were qPCR-positive for L. infantum and 26 (11.3 %) for filariae (24 for D. immitis only, one D. immitis and for Acanthocheilonema dracunculoides and another one for Acanthocheilonema reconditum only). Wolbachia spp. DNA was amplified from 16 (64.0 %) out of the 25 D. immitis-positive dogs. Nineteen (8.3 %) dogs were co-infected with L. infantum and D. immitis, including the one (0.4 %) A. drancunculoides-positive animal. In dogs without clinical signs consistent with leishmaniosis and/or dirofilariosis, L. infantum prevalence was 69 %, whereas in those dogs with at least one clinical manifestation compatible with any of the two parasitoses prevalence was 42.7 %. Leishmania prevalence was significantly higher in apparently healthy mongrels (77.2 %) and pets (76.9 %) than in defined-breed dogs (including crosses; 58.8 %) and in dogs with an aptitude other than pet (i.e. farm, guard, hunting, shepherd or stray), respectively, whereas in those dogs with at least one clinical sign, the detection of L. infantum DNA was higher in males (53.3 %) and in those dogs not receiving insect repellents (52.8 %). CONCLUSIONS: The molecular detection of canine vector-borne disease (CVBD) agents, some of which are zoonotic, reinforces the need to implement efficient prophylactic measures, such as insect repellents and macrocyclic lactones (including compliance to administration), in the geographical areas where these agents are distributed, with the view to prevent infection and disease among mammalian hosts including humans.
[Mh] Termos MeSH primário: Doenças do Cão/epidemiologia
Filariose/veterinária
Leishmania infantum/isolamento & purificação
Leishmaniose Visceral/veterinária
Infecções por Rickettsiaceae/veterinária
Wolbachia/isolamento & purificação
[Mh] Termos MeSH secundário: Animais
Dirofilaria immitis/genética
Dirofilaria immitis/isolamento & purificação
Dirofilariose/epidemiologia
Doenças do Cão/microbiologia
Doenças do Cão/parasitologia
Cães
Feminino
Filariose/epidemiologia
Filariose/parasitologia
Filarioidea/genética
Filarioidea/isolamento & purificação
Filarioidea/microbiologia
Seres Humanos
Leishmania infantum/genética
Leishmaniose Visceral/epidemiologia
Leishmaniose Visceral/parasitologia
Masculino
Portugal/epidemiologia
Infecções por Rickettsiaceae/epidemiologia
Infecções por Rickettsiaceae/microbiologia
Wolbachia/genética
Zoonoses
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170522
[Lr] Data última revisão:
170522
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160511
[St] Status:MEDLINE
[do] DOI:10.1186/s13071-016-1452-2


  8 / 712 MEDLINE  
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[PMID]:26990981
[Au] Autor:Zhang D; Lees RS; Xi Z; Bourtzis K; Gilles JR
[Ad] Endereço:Sun Yat-sen University - Michigan State University Joint Center of Vector Control for Tropical Diseases, Zhongshan School of Medicine, Guangzhou, Guangdong Province, China.
[Ti] Título:Combining the Sterile Insect Technique with the Incompatible Insect Technique: III-Robust Mating Competitiveness of Irradiated Triple Wolbachia-Infected Aedes albopictus Males under Semi-Field Conditions.
[So] Source:PLoS One;11(3):e0151864, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Combination of the sterile insect technique with the incompatible insect technique is considered to be a safe approach to control Aedes albopictus populations in the absence of an accurate and scalable sex separation system or genetic sexing strain. Our previous study has shown that the triple Wolbachia-infected Ae. albopictus strain (wAlbA, wAlbB and wPip) was suitable for mass rearing and females could be completely sterilized as pupae with a radiation dose of at least 28 Gy. However, whether this radiation dose can influence the mating competitiveness of the triple infected males was still unknown. In this study we aimed to evaluate the effects of irradiation on the male mating competitiveness of the triple infected strain under laboratory and semi-field conditions. The results herein indicate that irradiation with a lower, female-sterilizing dose has no negative impact on the longevity of triple infected males while a reduced lifespan was observed in the wild type males (wAlbA and wAlbB) irradiated with a higher male-sterilizing dose, in small cages. At different sterile: fertile release ratios in small cages, triple-infected males induced 39.8, 81.6 and 87.8% sterility in a wild type female population at 1:1, 5:1 and 10:1 release ratios, respectively, relative to a fertile control population. Similarly, irradiated triple infected males induced 31.3, 70.5 and 89.3% sterility at 1:1, 5:1 and 10:1 release ratios, respectively, again relative to the fertile control. Under semi-field conditions at a 5:1 release ratio, relative to wild type males, the mean male mating competitiveness index of 28 Gy irradiated triple-infected males was significantly higher than 35 Gy irradiated wild type males, while triple infected males showed no difference in mean mating competitiveness to either irradiated triple-infected or irradiated wild type males. An unexpected difference was also observed in the relative male mating competitiveness of the triple infected strain after irradiation at 28 Gy dose in small vs large cages, with a higher male mating competitiveness index calculated from results of experiments in the large cages. Based on these results, we consider that the male mating performance of the triple infected strain after irradiation at 28 Gy, a dose required for complete female sterility and the avoidance of population replacement, is approximately equal to that of the wild type males under semi-field conditions. Though field evaluation is required, this suggests that the triple infected strain is suitable for irradiation and release as part of a combined SIT-IIT approach to Ae. albopictus control.
[Mh] Termos MeSH primário: Aedes/fisiologia
Controle de Mosquitos/métodos
Infecções por Rickettsiaceae/transmissão
Comportamento Sexual Animal
Wolbachia
[Mh] Termos MeSH secundário: Aedes/microbiologia
Aedes/efeitos da radiação
Animais
Feminino
Masculino
Infecções por Rickettsiaceae/prevenção & controle
Esterilização Reprodutiva
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1608
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160319
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0151864


  9 / 712 MEDLINE  
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[PMID]:26891349
[Au] Autor:Joubert DA; Walker T; Carrington LB; De Bruyne JT; Kien DH; Hoang Nle T; Chau NV; Iturbe-Ormaetxe I; Simmons CP; O'Neill SL
[Ad] Endereço:School of Biological Sciences, Monash University, Clayton, Melbourne, Victoria, Australia.
[Ti] Título:Establishment of a Wolbachia Superinfection in Aedes aegypti Mosquitoes as a Potential Approach for Future Resistance Management.
[So] Source:PLoS Pathog;12(2):e1005434, 2016 Feb.
[Is] ISSN:1553-7374
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Wolbachia pipientis is an endosymbiotic bacterium estimated to chronically infect between 40-75% of all arthropod species. Aedes aegypti, the principle mosquito vector of dengue virus (DENV), is not a natural host of Wolbachia. The transinfection of Wolbachia strains such as wAlbB, wMel and wMelPop-CLA into Ae. aegypti has been shown to significantly reduce the vector competence of this mosquito for a range of human pathogens in the laboratory. This has led to wMel-transinfected Ae. aegypti currently being released in five countries to evaluate its effectiveness to control dengue disease in human populations. Here we describe the generation of a superinfected Ae. aegypti mosquito line simultaneously infected with two avirulent Wolbachia strains, wMel and wAlbB. The line carries a high overall Wolbachia density and tissue localisation of the individual strains is very similar to each respective single infected parental line. The superinfected line induces unidirectional cytoplasmic incompatibility (CI) when crossed to each single infected parental line, suggesting that the superinfection would have the capacity to replace either of the single constituent infections already present in a mosquito population. No significant differences in fitness parameters were observed between the superinfected line and the parental lines under the experimental conditions tested. Finally, the superinfected line blocks DENV replication more efficiently than the single wMel strain when challenged with blood meals from viremic dengue patients. These results suggest that the deployment of superinfections could be used to replace single infections and may represent an effective strategy to help manage potential resistance by DENV to field deployments of single infected strains.
[Mh] Termos MeSH primário: Aedes/microbiologia
Insetos Vetores/imunologia
Controle Biológico de Vetores
Infecções por Rickettsiaceae/microbiologia
Superinfecção/microbiologia
Wolbachia
[Mh] Termos MeSH secundário: Animais
Dengue/virologia
Vírus da Dengue
Feminino
Seres Humanos
Controle Biológico de Vetores/métodos
Saliva/microbiologia
Replicação Viral
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1607
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160219
[St] Status:MEDLINE
[do] DOI:10.1371/journal.ppat.1005434


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[PMID]:26837860
[Au] Autor:Erwin JA; Fitak RR; Dwyer JF; Morrison JL; Culver M
[Ad] Endereço:Graduate Interdisciplinary Program in Genetics, University of Arizona, Tucson, AZ 85721, USA; James E. Rogers College of Law, University of Arizona, Tucson, AZ 85721, USA. Electronic address: jaerwin@email.arizona.edu.
[Ti] Título:Molecular detection of bacteria in the families Rickettsiaceae and Anaplasmataceae in northern crested caracaras (Caracara cheriway).
[So] Source:Ticks Tick Borne Dis;7(3):470-4, 2016 Apr.
[Is] ISSN:1877-9603
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Bacterial pathogens of the families Anaplasmataceae and Rickettsiaceae are often spread to humans or other animals from bites from infected arthropod hosts. Recently, an increasing number of studies have implicated migratory birds in the circulation of these pathogens through the spread of arthropod vectors. However, few studies have examined the potential for resident bird populations to serve as reservoirs for these zoonoses. In this study, we used nested PCRs of the GroESL and 17 kDa genes to screen for Anaplasmataceae and Rickettsiaceae, respectively, in a resident population of the northern crested caracara (Caracara cheriway) from Florida (n=55). Additionally, a small number (n=6) of captive individuals from Texas were included. We identified one individual (1.64%) positive for Rickettsia felis and one (1.64%) positive for Ehrlichia chaffeensis; both these individuals were from Florida. Presence of these pathogens demonstrates that these birds are potential hosts; however, the low prevalence of infections suggests that these populations likely do not function as an ecological reservoir.
[Mh] Termos MeSH primário: Anaplasmataceae/isolamento & purificação
Anaplasmose/epidemiologia
Aves/microbiologia
Infecções por Rickettsiaceae/veterinária
Rickettsiaceae/isolamento & purificação
Zoonoses/epidemiologia
[Mh] Termos MeSH secundário: Anaplasmataceae/genética
Anaplasmose/microbiologia
Animais
Vetores Artrópodes/microbiologia
Proteínas de Bactérias/genética
Aves/parasitologia
Chaperoninas/genética
Monitoramento Epidemiológico
Florida/epidemiologia
Seres Humanos
Ácaros/microbiologia
Rickettsiaceae/genética
Infecções por Rickettsiaceae/epidemiologia
Infecções por Rickettsiaceae/microbiologia
Zoonoses/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Bacterial Proteins); 0 (GroESL protein, Bacteria); EC 3.6.1.- (Chaperonins)
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160204
[St] Status:MEDLINE



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