Muscular strength decrease in Rattus norvegicus experimentally infected by Toxocara canis
Pedro Paulo Chieffi,Renata Aquino,Maria Aparecida Paschoalotti,Manoel Carlos Sampaio de Almeida Ribeiro,Antonia Gladys Nasello +4 more
TLDR
The muscular strength of experimental infected Rattus norvegicus with 3rd.Abstract:
Roedores sao reconhecidos como hospedeiros paratenicos de Toxocara canis. Um dos mecanismos de transmissao desse ascarideo para caes, seus hospedeiros habituais, consiste na predacao de hospedeiros paratenicos, que albergam larvas de terceiro estagio em seus orgaos e tecidos, entre os quais musculos estriados. No presente trabalho estudou-se se a infeccao por larvas de Toxocara canis provoca alteracoes na forca muscular de exemplares de Rattus norvegicus experimentalmente infectados. Cinquenta Rattus norvegicus foram divididos em tres grupos: G1, com 20 ratos infectados com 300 ovos de Toxocara canis; G2, com 20 ratos infectados com 2.000 ovos do ascarideo e G3, com 10 ratos sem infeccao. Dez e 30 dias apos a infeccao determinou-se a forca muscular nas patas dianteiras dos roedores; ao mesmo tempo, avaliou-se seu peso corporal. Nao foram observadas diferencas no peso dos animais dos tres grupos; contudo, verificou-se decrescimo na forca muscular dos ratos infectados com 2.000 ovos apos o 30o dia de infeccao.read more
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Journal ArticleDOI
Toxocara spp. infections in paratenic hosts.
TL;DR: Current knowledge of larval migration in a variety of possible paratenic hosts is summarized including variations of migration routes and susceptibilities and information about the clinical and pathological changes for the presented species and possible consequences of the somatic migration of larvae are reviewed.
Journal ArticleDOI
Human toxocariasis: contribution by Brazilian researchers
Pedro Paulo Chieffi,Sérgio Vieira dos Santos,Maisa Leite de Queiroz,Susana Angélica Zevallos Lescano +3 more
TL;DR: In this paper, the main aspects of the natural history of human infection by Toxocara larvae that occasionally result in the occurrence of visceral and/or ocular larva migrans syndrome were reviewed.
Book ChapterDOI
Reevaluating the evidence for Toxoplasma gondii-induced behavioural changes in rodents.
TL;DR: Evidence of changes in motor coordination, learning, memory, locomotion, anxiety, response to novelty and aversion to feline odour in rodents experimentally infected with T. gondii is tabulated.
Human toxocariasis: contribution by brazilian researches
Pedro Paulo Chieffi,Sérgio Vieira dos Santos,Maisa Leite de Queiroz,Susana Angélica Zevallos Lescano +3 more
TL;DR: The main aspects of the natural history of human infection by Toxocara larvae that occasionally result in the occurrence of visceral and/or ocular larva migrans syndrome were reviewed.
Journal ArticleDOI
Abnormal neurobehaviour and impaired memory function as a consequence of Toxocara canis- as well as Toxocara cati-induced neurotoxocarosis
TL;DR: Findings provide valuable hints towards differences in key regulatory mechanisms during T. canis- and T. cati-induced NT, contributing to a comprehensive picture and consequently a broader understanding of NT, which will aid in developing strategies towards prevention in addition to novel diagnostic and therapeutic approaches.
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D.M. Cox,Celia V. Holland +1 more
TL;DR: Infected mice were less explorative and less responsive to novelty in the ‘T’ maze and this was particularly pronounced for the heavily infected mice and in the elevated plus maze, infected mice displayed reduced levels of anxiety to aversive and exposed areas of the maze.
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