Sobrevivência e infectividade do Trypanosoma cruzi na polpa de açaí: estudo in vitro e in vivo

Passos, Luiz Augusto; Guaraldo, Ana Maria Aparecida; Barbosa, Rodrigo Labello; Dias, Viviane Liotti; Pereira, Karen Signori; Schmidt, Flávio Luís; Franco, Regina Maura Bueno; Alves, Delma Pegolo

doi:10.5123/s1679-49742012000200005

Cited by 37 publications

(33 citation statements)

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“…Passos et al (2012) confirmed the effect of temperature on T. cruzi on acai, with absence of this parasite in the eluate of the fresh fruit pulp mixes after frozen at -20 o C; however, 100% of the trypomastigotes were active when it was refrigerated at 4 o C. In this context, some acai products can provide a suitable environment to the parasite survival. These data are very relevant, since acai is consumed in various forms of preparation (OLIVEIRA et al, 2002).…”

Section: Microbiological Parasitological and Microscopic Analysessupporting

confidence: 48%

Microbiological, parasitic, microscopic, physical and chemical characterization of processed acai (Euterpe oleracea Mart.) fruits

Soares

Souza

Góis

et al. 2017

AVB

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Section: Microbiological Parasitological and Microscopic Analysessupporting

confidence: 48%

Microbiological, parasitic, microscopic, physical and chemical characterization of processed acai (Euterpe oleracea Mart.) fruits

Soares

Souza

Góis

et al. 2017

AVB

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“…This simulation was repeated 15 times, and only once did the professionals identify the insect. It is noteworthy that this transmission can occur with the consumption of not only freshly made juice, but also frozen juice [34], [38]. These authors demonstrated that infective T. cruzi can survive in açaí pulp at room temperature for 48 h, at 4°C for 144 h and at −20°C for 26 h.…”

Section: Discussionmentioning

confidence: 95%

“…We already knew that the ACD cases in the urban portion of Belém were always associated with the oral consumption of açaí juice [34]. Notably, Jurunas is a neighborhood located on the banks of the Guamá river, which is the main route of access to the metropolitan region for the boats that transport and supply the açaí fruit that are harvested on the islands (Combu and Murutucu), which are approximately 20 minutes apart by boat, each day.…”

Section: Discussionmentioning

confidence: 99%

Distantiae Transmission of Trypanosoma cruzi: A New Epidemiological Feature of Acute Chagas Disease in Brazil

et al. 2014

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BackgroundThe new epidemiological scenario of orally transmitted Chagas disease that has emerged in Brazil, and mainly in the Amazon region, needs to be addressed with a new and systematic focus. Belém, the capital of Pará state, reports the highest number of acute Chagas disease (ACD) cases associated with the consumption of açaí juice.Methodology/Principal FindingsThe wild and domestic enzootic transmission cycles of Trypanosoma cruzi were evaluated in the two locations (Jurunas and Val-de Cães) that report the majority of the autochthonous cases of ACD in Belém city. Moreover, we evaluated the enzootic cycle on the three islands that provide most of the açaí fruit that is consumed in these localities. We employed parasitological and serological tests throughout to evaluate infectivity competence and exposure to T. cruzi. In Val-de-Cães, no wild mammal presented positive parasitological tests, and 56% seroprevalence was observed, with low serological titers. Three of 14 triatomines were found to be infected (TcI). This unexpected epidemiological picture does not explain the high number of autochthonous ACD cases. In Jurunas, the cases of ACD could not be autochthonous because of the absence of any enzootic cycle of T. cruzi. In contrast, in the 3 island areas from which the açaí fruit originates, 66.7% of wild mammals and two dogs displayed positive hemocultures, and 15.6% of triatomines were found to be infected by T. cruzi. Genotyping by mini-exon gene and PCR-RFLP (1f8/Akw21I) targeting revealed that the mammals and triatomines from the islands harbored TcI and Trypanosoma rangeli in single and mixed infections.Conclusion/SignificanceThese findings show that cases of Chagas disease in the urban area of Belém may be derived from infected triatomines coming together with the açaí fruits from distant islands. We term this new epidemiological feature of Chagas disease as “Distantiae transmission”.

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“…Outra forma de transmissão rotineira é através de transfusão de hemoderivados contaminados com o protozoário, tendo ainda a transmissão por via transplacentária bastante incidente. Apresenta-se como moléstia endêmica no continente Americano, estando fortemente associada ao ambiente insalubre ao qual muitas populações da zona rural estão expostas (PASSOS et al, 2012;VASCONCELOS et al, 2013;DIAS et al 2016).…”

Section: Introductionunclassified

Artropatia Crônica Em Consequência Da Febre Chikungunya

Silva¹,

Macêdo²,

Formiga³

et al. 2019

Patologias Das Doenças 6

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Sobrevivência e infectividade do Trypanosoma cruzi na polpa de açaí: estudo in vitro e in vivo

Cited by 37 publications

References 0 publications

Microbiological, parasitic, microscopic, physical and chemical characterization of processed acai (Euterpe oleracea Mart.) fruits

Microbiological, parasitic, microscopic, physical and chemical characterization of processed acai (Euterpe oleracea Mart.) fruits

Distantiae Transmission of Trypanosoma cruzi: A New Epidemiological Feature of Acute Chagas Disease in Brazil

Artropatia Crônica Em Consequência Da Febre Chikungunya

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