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1. Canine visceral leishmaniasis: Incidence and risk factors for infection in a cohort study in Brazil

Author:
Reis, Levi Eduardo Soares,   et al.   ; Coura-Vital, Wendel; Reis, Alexandre Barbosa; Braga, Samuel Leôncio; Roatt, Bruno Mendes; Aguiar-Soares, Rodrigo Dian de Oliveira; Marques, Marcos José; Veloso, Vanja Maria; Carneiro, Mariângela;     Show all 9 Authors
Source:
Veterinary parasitology 2013 v.197 no.3-4 pp. 411-417
ISSN:
0304-4017
Subject:
parasites; questionnaires; insecticides; monitoring; cohort studies; dogs; Phlebotominae; environmental management; Leishmania infantum; confidence interval; regression analysis; immunology; risk factors; seroconversion; visceral leishmaniasis; biting rates; spraying; Brazil
Abstract:
... Zoonotic visceral leishmaniasis in Brazil is caused by Leishmania infantum parasites and is transmitted by sand flies of the Phlebotominae family. Dogs are the main urban reservoirs and represent the major source of contagion for the vectors. Studies have shown that most infected dogs are polymerase chain reaction-positive months before seroconversion. Herein, we describe a cohort study designed t ...
DOI:
10.1016/j.vetpar.2013.07.031
PubMed:
23941965

2. Molecular diagnosis of canine visceral leishmaniasis: A comparative study of three methods using skin and spleen from dogs with natural Leishmania infantum infection

Author:
Reis, Levi Eduardo Soares,   et al.   ; Coura-Vital, Wendel; Roatt, Bruno Mendes; Bouillet, Leoneide Érica Maduro; Ker, Henrique Gama; Fortes de Brito, Rory Cristiane; Resende, Daniela de Melo; Carneiro, Mariângela; Giunchetti, Rodolfo Cordeiro; Marques, Marcos José; Carneiro, Cláudia Martins; Reis, Alexandre Barbosa;     Show all 12 Authors
Source:
Veterinary parasitology 2013 v.197 no.3-4 pp. 498-503
ISSN:
0304-4017
Subject:
DNA; DNA-directed DNA polymerase; Leishmania infantum; bone marrow; dogs; ears; enzyme-linked immunosorbent assay; fluorescent antibody technique; genes; parasites; quantitative polymerase chain reaction; spleen; visceral leishmaniasis
Abstract:
... Polymerase chain reaction (PCR) and its variations represent highly sensitive and specific methods for Leishmania DNA detection and subsequent canine visceral leishmaniasis (CVL) diagnosis. The aim of this work was to compare three different molecular diagnosis techniques (conventional PCR [cPCR], seminested PCR [snPCR], and quantitative PCR [qPCR]) in samples of skin and spleen from 60 seropositi ...
DOI:
10.1016/j.vetpar.2013.07.006
PubMed:
23953760

3. Dogs infected with the blood trypomastigote form of Trypanosoma cruzi display an increase expression of cytokines and chemokines plus an intense cardiac parasitism during acute infection

Author:
Reis, Levi Eduardo Soares,   et al.   ; de Souza, Sheler Martins; de Abreu Vieira, Paula Melo; Roatt, Bruno Mendes; da Silva Fonseca, Kátia; Nogueira, Nívia Carolina; Reis, Alexandre Barbosa; Tafuri, Washington Luiz; Carneiro, Cláudia Martins;     Show all 9 Authors
Source:
Molecular Immunology 2014 v.58 pp. 92-97
ISSN:
0161-5890
Subject:
CCR5 receptor; Chagas disease; Triatominae; Trypanosoma cruzi; acute course; blood; blood transfusion; chemokines; dog diseases; dogs; gene expression; heart; host-parasite relationships; immigration; immune response; infectious diseases; inoculum; interferon-gamma; interleukin-10; interleukin-12; messenger RNA; parasitism; people; transforming growth factor beta 1; trypomastigotes; Europe; United States
Abstract:
... The recent increase in immigration of people from areas endemic for Chagas disease (Trypanosoma cruzi) to the United States and Europe has raised concerns about the transmission via blood transfusion and organ transplants in these countries. Infection by these pathways occurs through blood trypomastigotes (BT), and these forms of T. cruzi are completely distinct of metacyclic trypomastigotes (MT), ...
DOI:
10.1016/j.molimm.2013.11.007

4. Association between mast cells, tissue remodelation and parasite burden in the skin of dogs with visceral leishmaniasis

Author:
Reis, Levi Eduardo Soares,   et al.   ; Cardoso, Jamille Mirelle de Oliveira; Ker, Henrique Gama; Aguiar-Soares, Rodrigo Dian de Oliveira; Moreira, Nádia das Dores; Mathias, Fernando Augusto Siqueira; Roatt, Bruno Mendes; Vieira, Paula Melo de Abreu; Coura-Vital, Wendel; Carneiro, Cláudia Martins; Reis, Alexandre Barbosa;     Show all 11 Authors
Source:
Veterinary parasitology 2017 v.243 pp. 260-266
ISSN:
0304-4017
Subject:
Leishmania infantum; Phlebotominae; collagen; dog diseases; dogs; ears; histology; humans; inflammation; mast cells; necropsy; parasite load; parasites; parasitism; pathogenesis; public health; visceral leishmaniasis; zoonoses
Abstract:
... Canine visceral leishmaniosis (CVL) is a zoonosis of major public health impact caused by organisms of the genus Leishmania which is transmitted to human and animals by phlebotomine sand flies. The skin is the first point of contact with Leishmania parasites for sandy fly vectors and it is considered an important reservoir compartment in infected dogs. The aim of this study was to determine the ma ...
DOI:
10.1016/j.vetpar.2017.05.028

5. Comparative analysis of real-time PCR assays in the detection of canine visceral leishmaniasis

Author:
Reis, Levi Eduardo Soares,   et al.   ; Nunes, Juliana Barbosa; Coura-Vital, Wendel; Colombo, Fabio Antônio; Baêta, Frederico José Moreira; Pinheiro, Aimara Costa; Roatt, Bruno Mendes; Reis, Alexandre Barbosa; Marques, Marcos José;     Show all 9 Authors
Source:
Parasitology research 2018 v.117 no.10 pp. 3341-3346
ISSN:
0932-0113
Subject:
DNA; Leishmania infantum; blood; blood sampling; diagnostic techniques; dogs; epidemiological studies; hosts; parasites; quantitative polymerase chain reaction; spleen; tissues; veterinary clinics; visceral leishmaniasis
Abstract:
... Dogs are important hosts and reservoirs of leishmaniasis, a disease caused by protozoan parasites from the genus Leishmania, affecting ~12 million people worldwide. The detection of visceral leishmaniasis (VL) in dogs by real-time PCR (qPCR) may improve on diagnosis, but the different qPCR methods available for Leishmania DNA detection have not been established as routine in diagnostic tools and/o ...
DOI:
10.1007/s00436-018-6038-9