The aims of this study were: the identification of proteins differentially represented in the serum proteome of dogs with leishmaniosis after treatment and the verification of one selected protein as a possible biomarker for treatment monitoring. Serum samples from five dogs with leishmaniosis, before and after treatment were pooled into two groups and analysed using 2-dimensional electrophoresis followed by mass spectrometry analysis (MS). The MS analysis allowed the identification of 8 proteins differently expressed. APO-A1 was selected and an immunoturbidimetric assay was validated for its measurement in dogs. Significantly decreased concentrations of APO-A1 in dogs with leishmaniosis and a significant increase after a good response to the treatment were observed, suggesting that APO-A1 could be a potential biomarker of treatment monitoring with the advantages of an automated measurement.
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http://dx.doi.org/10.1016/j.cimid.2016.10.002 | DOI Listing |
Rev Bras Parasitol Vet
January 2025
Programa de Pós-graduação em Medicina Veterinária, Laboratório de Doenças Parasitárias, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil.
This study evaluated dynamics of antibodies in dogs treated for canine visceral leishmaniasis (CVL). Twenty-one dogs naturally infected by Leishmania spp. were grouped based on the treatment protocol: G1 (n=4) received allopurinol; G2 (n=10) allopurinol with miltefosine; and G3 (n=7) allopurinol, miltefosine and Leish-Tec® vaccine.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Av. Brasil, 4365, Rio de Janeiro 21040-360, Brazil.
Zoonotic visceral leishmaniasis is caused by () and dogs are the main domestic reservoir. This study compared the performance of parasitological tests using semi-automatic needle puncture (SANP) for collecting popliteal lymph node samples with samples collected from the same lymph node by fine needle aspiration puncture (FNAP) and by necropsy for the diagnosis of canine visceral leishmaniasis (CVL). Popliteal lymph node samples were collected from 30 CVL-seropositive dogs from an endemic region in Brazil.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Microbiology, Immunology and Parasitology, Laboratory of Protozoology, Federal University of Santa Catarina, Florianópolis, SC, Brazil.
In Brazil, Visceral Leishmaniases is caused by Leishmania infantum, and domestic dogs are the main reservoirs in its urban transmission cycle. As an alternative to euthanizing dogs, miltefosine has been used to treat canine visceral leishmaniasis since 2016. In this study, we have assessed the efficacy of miltefosine for treating canine visceral leishmaniasis in a new endemic area through follow-up of naturally infected dogs was evaluated.
View Article and Find Full Text PDFActa Parasitol
January 2025
Ezequiel Dias Foundation, Directorate of Research and Development, Belo Horizonte, Minas Gerais, 30510-010, Brazil.
Introduction: Ensuring accuracy in the diagnosis of leishmaniasis is crucial due to the myriad of potential differential diagnoses. Given the inherent limitations of serological techniques, real-time polymerase chain reaction (qPCR) emerges as a superior alternative. Furthermore, parasitological methods, conventionally regarded as the gold standard owing to their high specificity, encounter challenges concerning sensitivity and invasiveness for patients.
View Article and Find Full Text PDFPLoS Negl Trop Dis
December 2024
Department of Veterinary Medicine, University of Bari, Bari, Italy.
The olfactory response of insect vectors such as phlebotomine sand flies is a key facet for investigating their interactions with vertebrate hosts and associated vector-borne pathogens. Such studies are mainly performed by assessing the electrophysiological response and the olfactory behaviour of these arthropods towards volatile organic compounds (VOCs) produced by hosts. Nonetheless, few studies are available for species of the subgenera Lutzomyia and Nyssomyia in South America, leaving a void for Old World sand fly species of the genus Phlebotomus.
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