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Home / Archives for Almeida AP

Molecular detection of Wolbachia pipientis in natural populations of mosquito vectors of Dirofilaria immitis from continental Portugal: first detection in Culex theileri

  • Authors: Almeida AP, Belo S, Calado MM, de Pinho Mixao V, Mauricio IL, Mendes AM, Novo MT
  • Publication Year: 2016
  • Journal: Medical and Veterinary Entomology
  • Link: https://onlinelibrary.wiley.com/doi/epdf/10.1111/mve.12179

Wolbachia pipientis (Rickettsiales: Rickettsiaceae) protects mosquitoes from infections with arboviruses and parasites. However, the effect of its co-infection on vector competence for Dirofilaria immitis (Spirurida: Onchocercidae) in the wild has not been investigated. This study aimed to screen vectors of D. immitis for wPip, to characterize these, and to investigate a possible association between the […]
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Comparative morphological and molecular analysis confirms the presence of the West Nile virus mosquito vector, Culex univittatus, in the Iberian Peninsula

  • Authors: Almeida AP, Braack L, Bravo-Barriga D, Frontera E, Mixão V, Novo MT, Parreira R, Sousa CA, Venter M
  • Publication Year: 2016
  • Journal: Parasites & Vectors
  • Link: https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-016-1877-7

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Highly dynamic host actin reorganization around developing Plasmodium inside hepatocytes.

  • Authors: Afonso C, Almeida AP, Frischknecht F, Gardner R, Gomes-Santos CS, Henriques R, Itoe MA, Moita LF, Mota MM, Raquel H, Sepúlveda N, Simões PD
  • Journal: PLoS One
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=Highly+Dynamic+Host+Actin+Reorganization+around+Developing+Plasmodium+Inside+Hepatocytes

Plasmodium sporozoites are transmitted by Anopheles mosquitoes and infect hepatocytes, where a single sporozoite replicates into thousands of merozoites inside a parasitophorous vacuole. The nature of the Plasmodium-host cell interface, as well as the interactions occurring between these two organisms, remains largely unknown.
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The Culex pipiens complex in continental Portugal: distribution and genetic structure.

  • Authors: Almeida AP, Donnelly MJ, Gomes B, Novo MT, Parreira R, Sousa CA, Pinto J
  • Journal: Journal of the American Mosquito Control Association
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=The+Culex+pipiens+complex+in+continental+Portugal%3A+Distribution+and+genetic+structure.

Portugal is a southern European country that displays favorable ecological conditions for the establishment of West Nile virus (WNV) transmission cycles. Competent mosquito vector species are present throughout the country.
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A divergent insect-specific flavivirus that causes overt cytopathic effect in a mosquito cell-line

  • Authors: Almeida AP, Alves de Matos AP, Duque Ferreira D, Esteves A, Lopes A, Parreira R, Piedade J
  • Publication Year: 2013
  • Journal: Microscopy and Microanalysis
  • Link: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8964978&fileId=S1431927613001049

This work reports the initial characterization, including near full-length sequence analysis, of an ISF which seems to form a divergent lineage within the ISF radiation, as indicated by phylogenetic analysis based on ac multiple sequence alignment of the NS5 flavivirus coding sequence.
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About GHTM

GHTM is a R&D Unit that brings together researchers with a track record in Tropical Medicine and International & Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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