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Experimental infection with the Toxoplasma gondii ME-49 strain in the Brazilian BR-1 mini pig is a suitable animal model for human toxoplasmosis

Overview of attention for article published in Memórias do Instituto Oswaldo Cruz, February 2015
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Title
Experimental infection with the Toxoplasma gondii ME-49 strain in the Brazilian BR-1 mini pig is a suitable animal model for human toxoplasmosis
Published in
Memórias do Instituto Oswaldo Cruz, February 2015
DOI 10.1590/0074-02760140318
Pubmed ID
Authors

Farlen José Bebber Miranda, Diogo Benchimol de Souza, Edwards Frazão-Teixeira, Fábio Conceição de Oliveira, João Cardoso de Melo, Carlos Magno Anselmo Mariano, Antonio Peixoto Albernaz, Eulógio Carlos Queiróz de Carvalho, Francisco Carlos Rodrigues de Oliveira, Wanderley de Souza, Renato Augusto DaMatta

Abstract

Toxoplasma gondii causes toxoplasmosis, a worldwide disease. Experimentation with pigs is necessary for the development of new therapeutic approaches to human diseases. BR-1 mini pigs were intramuscularly infected with T. gondii with tachyzoites (RH strain) or orally infected with cysts (ME-49 strain). Haematology and serum biochemistry were analysed and buffy coat cells were inoculated in mice to determine tachyzoite circulation. No alterations were observed in erythrocyte and platelet values; however, band neutrophils increased seven days after infection with ME-49. Serology of the mice inoculated with pig blood leucocytes revealed circulating ME-49 or RH strain tachyzoites in the pigs' peripheral blood at two and seven or nine days post-infection. The tachyzoites were also directly observed in blood smears from the infected pigs outside and inside leucocytes for longer periods. Alanine-aminotransferase was high at days 21 and 32 in the RH infected pigs. After 90 days, the pigs were euthanised and their tissue samples were processed and inoculated into mice. The mice serology revealed the presence of parasites in the hearts, ileums and mesenteric lymph nodes of the pigs. Additionally, cysts in the mice were only observed after pig heart tissue inoculation. The infected pigs presented similar human outcomes with relatively low pathogenicity and the BR-1 mini pig model infected with ME-49 is suitable to monitor experimental toxoplasmosis.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 46 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 10 22%
Student > Ph. D. Student 6 13%
Researcher 6 13%
Student > Master 6 13%
Student > Doctoral Student 4 9%
Other 7 15%
Unknown 7 15%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 7 15%
Agricultural and Biological Sciences 7 15%
Immunology and Microbiology 5 11%
Medicine and Dentistry 5 11%
Veterinary Science and Veterinary Medicine 4 9%
Other 6 13%
Unknown 12 26%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 March 2015.
All research outputs
#20,257,230
of 22,786,691 outputs
Outputs from Memórias do Instituto Oswaldo Cruz
#1,182
of 1,376 outputs
Outputs of similar age
#296,541
of 352,517 outputs
Outputs of similar age from Memórias do Instituto Oswaldo Cruz
#12
of 18 outputs
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So far Altmetric has tracked 1,376 research outputs from this source. They receive a mean Attention Score of 4.4. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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