Primeiro encontro do Triatoma costalimai naturalmente infectado pelo Trypanosoma cruzi: estudo de aspectos biológicos da amostra isolada

Abstract

Uma amostra de T. cruzi foi isolada pela primeira vez de um exemplar do Triatoma costalimai, capturado no município de Mambai, Goiás. Estudos experimentais sobre infectividade e virulência foram conduzidos em triatomíneos, Calomys callosus (Rodentia) e camundongos albinos. Cultivo "In Vitro" da amostra isolada foi obtido com sucesso utilizando-se o meio LIT. As mensurações realizadas em tripomastigotas sanguícolas deram os seguintes resultados (mcg): comprimento total - 16,4 (± 1,1); flagelo livre - 4,9 (± 1,1); largura - 2,8 (± 0,6); distância NA - 4,8 (± 0,6); distância NP - 6,0 (± 0,5) e Indice nuclear 1,3.

Geographic Distribution of Chagas Disease Vectors in Brazil Based on Ecological Niche Modeling

“…This species has been frequently captured in sylvatic environments (calcareous rocks), and also in peri- and intradomiciliar ecotopes in the municipalities of northeastern Goiás, with high rates of T. cruzi infection [102–104]. The geographic distribution of T. costalimai in the Cerrado remains poorly known, so research is needed to clarify its synanthropic behavior and vectorial capacity.…”

An overview on the ecology of Triatominae (Hemiptera:Reduviidae)

“…Collected among calcareous rocks close to nests of mocó (Cavidae) (Lent and Wygodzinsky, 1979;Machiner et al, 2012) Adults found inside human houses and peridomestic structures (Machiner et al, 2012) Yes (Mello and Borges, 1981) T. deaneorum # # Adults found inside human houses (Carcavallo et al, 2001) # #…”

Infectivity of Trypanosoma cruzi strains is associated with differential expression of surface glycoproteins with differential Ca2+ signalling activity

“…cruzi strains G [13] and CL [14] were used throughout this study. In one set of experiments we also used eight additional strains, namely : Y [15], F [16], Tulahuen [17], M226 [18], Costalimai [19] and the Venezuelan strains Dm28, Dm30 and Guafitas [10]. Parasites were maintained alternately in mice and in axenic cultures.…”