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Evolução da expressão de CD45+ e do leucograma de cães linfomatosos durante quimioterapia com o protocolo de Madison-Wisconsin

Authors: Anai, Letícia Abrahão;

Evolução da expressão de CD45+ e do leucograma de cães linfomatosos durante quimioterapia com o protocolo de Madison-Wisconsin

Abstract

O linfoma é o tumor de tecido hematopoético mais comum nos cães e um dos tumores malignos de maior ocorrência nesta espécie. É um ótimo modelo experimental para estudo devido a sua semelhança com o linfoma não-Hodgkin em humanos. Considerando a importância das alterações decorrentes da evolução desta neoplasia e aquelas ocorridas com o emprego da poliquimioterapia, avaliou-se a fórmula leucocitária absoluta e a contagem de células CD45+, no sangue de 25 cães linfomatosos, contrastando-as a partir do diagnóstico, uma vez por semana, durante as primeiras oito sessões quimioterápicas do protocolo de Madison-Wisconsin, e também foi comparada as contagens totais dos granulócitos, linfócitos e monócitos, obtidas em contador automático convencional e por intermédio da citometria de fluxo. Observou-se um maior número de animais com linfoma multicêntrico em estadio Vb. No leucograma, as principais alterações foram observadas no momento do diagnóstico e quando analisado o tratamento poliquimioterápico, ao longo do tempo, a maior mielosupressão foi imposta pela vincristina e suas associações. Cães linfomatosos podem ser avaliados tanto por intermédio de contadores eletrônicos como por meio da citometria de fluxo

Lymphoma is the most common hematopoietic tumor in dogs and one of the malignant tumors with highest occurrence in that species. It is a great experimental model to study since it has a great resemblance with the non-Hodgkin lymphoma in humans. Considering the importance of the alterations due to the evolution of this malignancy and the ones due to the use of polichemothearpy this work aimed to evaluate the absolute leucocyte count and the counts of CD45+ type cells in the blood of 25 lymphomatic dogs counterpointing them since diagnose, once a week, during the first eight chemotherapic sessions with the Madison-Wisconsin protocol. Furthermore the total counts of granulocytes, lymphocytes and monocytes obtained by conventional automatic counter and by flow cytometry were compared. It was observed a greater number of animals with multicentric lymphoma in stage Vb. The main alterations in the leukon were the ones observed at the moment of diagnose. When analyzing the polichemotherapy treatment the highest myelosupression was caused by vincristine and its associations. It is concluded that dogs with lymphoma can be evaluated by electronic counters as well as by flow cytometry

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Cirurgia Veterinária - FCAV

Country
Brazil
Keywords

Cão, Linfoma, Lymphoma, Dog, CD45, Flow cytometry, Citometria de fluxo

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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