Experimental infection of Rhodnius robustus Larrousse, 1927 (Hemiptera, Reduviidae, Triatominae) with Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida, Trypanosomatidae) IV

2021 ◽  
pp. 108197
Author(s):  
Ana Paula de Abreu ◽  
Ana Paula Margioto Teston ◽  
Miyoko Massago ◽  
Hevillyn Fernanda Lucas da Silva ◽  
Érika Cristina Ferreira ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Infection ◽  
Rhodnius Robustus

scholarly journals Primeiro caso autóctone de tripanossomíase americana no Estado do Acre (Brasil) e sua correlação com as cepas isoladas do caso humano e de triatomíneos silvestres da área

1988 ◽  
Vol 22 (5) ◽  
pp. 401-410 ◽  
Author(s):  
José Maria Soares Barata ◽  
Roraima Moreira Rocha ◽  
Vera Lúcia C.C. Rodrigues ◽  
Antenor Nascimento Ferraz Filho
Keyword(s):  
Trypanosoma Cruzi ◽  
Rhodnius Robustus

São apresentados os resultados obtidos na investigação entorno-epidemiológica realizada no estudo do primeiro caso humano autóctone de tripanossomíase americana no Estado do Acre (Brasil). A investigação demonstrou ausência de domiciliação triatomínea, ficando descartada totalmente a possibilidade de transmissão congênita ou transfusional. Não foi possível verificar se a transmissão foi metaxênica através da invasão domiciliar de barbeiro silvestre, ou se por via digestiva através de alimentos contaminados. Foram isoladas duas cepas de Trypanosoma cruzi, uma do caso humano chamada Acre-Humana (AH) e outra de Rhodnius robustus coletados em palmeiras uricuri (Attalea sp) nas proximidades da casa, chamada Acre-Silvestre (AS). Ficou comprovada a existência de correlação entre os caracteres morfobiológicos e patogênicos das duas amostras estudadas: mostraram-se patogênicas para camundongos, infectando 100% dos animais, quer com formas metacíclicas de triatomíneos, quer com formas sanguícolas de doadores em fase aguda. A infecção dos camundongos nas duas amostras é grave com curto período pré-patente, parasitemia elevada e taxa de letalidade alta. Em ambas as cepas, em fase aguda, são abundantes ninhos de amastigotas, principalmente no coração e fígado. As amostras AH e AS conferem aos animais que sobrevivem boa resistência contra infecções pela amostra Y. Cultivaram-se facilmente em meios líquidos e semi-sólidos e infectaram experimentalmente seis espécies de triatomíneos. Os resultados comprovam mais uma vez a presença de focos naturais desta parasitose na região.

Trypanosoma cruzi: the expansion of NK, T, and NKT cells in the experimental infection

2004 ◽  
Vol 106 (3-4) ◽  
pp. 85-94 ◽  
Author(s):  
Marı́a Inés Antúnez ◽  
Rita L. Cardoni
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Infection ◽  
Nkt Cells

scholarly journals Hematological alterations during experimental canine infection by Trypanosoma cruzi

2012 ◽  
Vol 21 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Paulo Marcos Matta Guedes ◽  
Vanja Maria Veloso ◽  
Tiago Wilson Patriarca Mineo ◽  
Juliana Santiago-Silva ◽  
Geovan Crepalde ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Model ◽  
Chagas Disease ◽  
Experimental Infection ◽  
Clinical Signs ◽  
Beagle Dogs ◽  
Canine Infection ◽  
Loss Of Appetite ◽  
Experimental Canine ◽  
Hematological Alterations

To confirm that Beagle dogs are a good experimental model for Chagas disease, we evaluated hematological alterations during the acute and chronic phases in Beagle dogs infected with the Y, Berenice-78 (Be-78) and ABC strains of Trypanosomacruzi, correlating clinical signs with the parasitemia curve. We demonstrate that the acute phase of infection was marked by lethargy and loss of appetite. Simultaneously, we observed anemia, leukocytosis and lymphocytosis. Also,we describe hematological alterations and clinical signs that were positively correlated with the parasitemia during the experimental infection with the three strains of T.cruzi, and demonstrate that experimental infection of Beagle is a trustworthy model for Chagas disease.

Effects of Highly Diluted Drugs on Experimental Infection with Trypanosoma cruzi In Vivo: Systematic Review

2020 ◽  
Vol 26 (10) ◽  
pp. 866-883
Author(s):  
Daniela Cristina Grégio d'Arce Mota ◽  
Érika Cristina Ferreira ◽  
Fabiana Nabarro Ferraz ◽  
Maria Vitória Felipe de Souza ◽  
Bruna Lauton Simões ◽  
...  
Keyword(s):  
Systematic Review ◽  
Trypanosoma Cruzi ◽  
Experimental Infection

scholarly journals Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form

1993 ◽  
Vol 26 (1) ◽  
pp. 25-33 ◽  
Author(s):  
E.C. Oliveira ◽  
M.M.A. Stefani ◽  
A.O. Luquetti ◽  
E.F. Vêncio ◽  
M.A.R. Moreira ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Digestive Tract ◽  
Chagas Disease ◽  
Acute Phase ◽  
Experimental Infection ◽  
Post Infection ◽  
Chronic Phase ◽  
Igg Antibodies ◽  
Histopathology Examination

A new Trypanosoma cruzi stock isolated from a patient in the chronic phase of Chagas' disease with the digestive and cardiac fortn of the disease was characterized by experimental infection in isogenic, susceptible, A/Sn strain mice. Parasitemia curves showed up to 1.7x10(6) parasites/ml and no mortality was observed up to 300 days post infection. Specific IgM was found in mice in the acute phase up to 40 days and also in the chronic phase. IgG antibodies yvere detected in the acute and chronic phase. Histopathology examination demonstrated myotropism to the digestive tract muscle layers and to the heart.

scholarly journals Trypanosoma cruzi-infected Panstrongylus geniculatus and Rhodnius robustus adults invade households in the Tropics of Cochabamba region of Bolivia

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Mirko Rojas-Cortez ◽  
Maria-Jesus Pinazo ◽  
Lineth Garcia ◽  
Mery Arteaga ◽  
Liliana Uriona ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
The Tropics ◽  
Panstrongylus Geniculatus ◽  
Rhodnius Robustus

PGE2 involvement in experimental infection with Trypanosoma cruzi subpopulations

1995 ◽  
Vol 49 (3) ◽  
pp. 141-153 ◽  
Author(s):  
Ana M. Celentano ◽  
Gabriela Gorelik ◽  
María E. Solana ◽  
Leonor Sterin-Borda ◽  
Enri Borda ◽  
...  
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Infection

Trypanosoma cruzi: Effects of repetitive stress during the development of experimental infection

2005 ◽  
Vol 110 (2) ◽  
pp. 96-101 ◽  
Author(s):  
Carla D. Santos ◽  
Jerri C. Caldeira ◽  
Míriam P.A. Toldo ◽  
José C. Prado
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Infection ◽  
Repetitive Stress

Acute Trypanosoma cruzi experimental infection induced renal ischemic/reperfusion lesion in mice

2009 ◽  
Vol 106 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Gabriel Melo de Oliveira ◽  
Tshaca Mahatma da Silva ◽  
Wanderson Silva Batista ◽  
Marcello Franco ◽  
Nestor Schor
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Infection ◽  
Ischemic Reperfusion

Sleep and memory deficits in the rat produced by experimental infection with Trypanosoma cruzi

2001 ◽  
Vol 306 (1-2) ◽  
pp. 65-68 ◽  
Author(s):  
Gloria Arankowsky-Sandoval ◽  
Mirza Mut-Martı́n ◽  
Francisco Solı́s-Rodrı́guez ◽  
José L. Góngora-Alfaro ◽  
Mario Barrera-Pérez
Keyword(s):  
Trypanosoma Cruzi ◽  
Experimental Infection ◽  
Memory Deficits
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