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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Análise comparativa do teste imunocromatográfico DPP-Biomanguinhos com ELISA e RIFI no diagnóstico da leishmaniose visceral canina / Comparative analysis of DPP-Biomanguinhos immunoassay with ELISA and IFAT for the diagnosis of canine visceral leishmaniasis

Marcos Vinicius de Santana Leandro Junior 26 May 2014 (has links)
Com o objetivo de avaliar o desempenho do teste rápido DPP® LVC comparando com os testes de ELISA e RIFI (Bio-Manguinhos, Br), assim como ELISA e RIFI in-house, empregando como antígeno formas promastigotas de L. (L.) infantum chagasi, com ênfase a reatividade cruzada com outros agentes infecciosos, soros de cães infectados por L. (L.) infantum chagasi, clinicamente sintomáticos (n=48) e assintomáticos (n=39), assim como soros de cães sadios e não infectados (n=18), e soros de cães infectados por Babesia canis (n=9), Dirofilaria immitis (n=4), Trypanosoma cruzi (n=6), Ehrlichia canis (n=17), Neospora caninum (n=6), Toxoplasma gondii (n=9), Neospora/Toxoplasma coinfecção (n=4) e Toxocara canis (n=9) foram avaliados pelas diferentes técnicas de diagnóstico. DPP e ELISA in-house mostraram alta sensitividade (90.81% e 94.25%) e especificidade (95.06% e 97.53%), respectivamente para o diagnóstico de LVC sintomática e assintomática, mas apresentaram reação cruzada com Babesia canis, 44% para DPP e 22% para ELISA in-house. Os dois testes mostraram uma excelente concordância de resultados (kappa=0.9405, p < 0.0001). ELISA Bio-Manguinhos assim como o RIFI Bio-Manguinhos e RIFI in-house mostraram boa sensitividade (90.81%, 96.47% e 89.41%), mas baixa especificidade (77.78%, 69.14% e 65.82%), respectivamente; e mostraram reação cruzada com soros de animais infectados com Babesia canis, Dirofilaria immitis, Trypanosoma cruzi, Ehrlichia canis, Neospora caninum, Toxoplasma gondii. Os resultados mostraram que o DPP® CVL apresentou um bom desempenho para o diagnóstico da leishmaniose visceral canina sintomática e assintomática / In order to investigate the performance of the DPP® CVL rapid test comparing with ELISA and IFA (Bio-Manguinhos, Br), as well as ELISA and IFAT in house using L. (L.) infantum chagasi promastigotes as antigen with emphasis in the cross-reactivity with others infectious agents, sera from clinically symptomatic (n=48) and asymptomatic (n=39) L. (L.) infantum chagasi infected dogs, as well as from healthy non-infected (n=18) dogs and from Babesia canis (n=9), Dirofilaria immitis (n=4), Trypanosoma cruzi (n=6), Ehrlichia canis (n=17), Neospora caninum (n=6), Toxoplasma gondii (n=9), Neospora/Toxoplasma co-infection (n=4) and Toxocara canis (n=9) infected dogs were tested for different diagnosis techniques. DPP and ELISA in-house showed high sensitivity (90.81% and 94.25%) and specificity (95.06% and 97.53%), respectively for symptomatic and asymptomatic CVL diagnosis, but presented cross-reactivity with Babesia canis, 44% for DPP and 22% for ELISA in-house. Both test showed an excellent agreement (kappa=0.9405, p < 0.0001). ELISA Bio-Manguinhos as well as IFA Bio-Manguinhos and IFA in-house showed good sensitivity 90.81%, 96.47% and 89.41%) but low specificity (77.78%, 69.14% and 65.82%), respectively; and showed cross-reactivity with sera from animals infected with Babesia canis, Dirofilaria immitis, Trypanosoma cruzi, Ehrlichia canis, Neospora caninum, Toxoplasma gondii. The results showed that DPP® CVL had a good performance for the diagnosis of of both symptomatic and asymptomatic canine visceral leishmaniasis

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