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Master's Dissertation
DOI
https://doi.org/10.11606/D.10.2016.tde-01092016-124853
Document
Author
Full name
Raquel Harue Fukumori Almeida Souza
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Oliveira, Claudio Alvarenga de (President)
Furtado, Priscila Viau
Jericó, Marcia Marques
Title in Portuguese
Avaliação sérica de estrógeno e progesterona por método de imunoensaio multianalito em cadelas durante o ciclo estral
Keywords in Portuguese
Cadelas
Estradiol
Luminex®
Progesterona
RIE
Abstract in Portuguese
O trabalho teve como objetivo avaliar a concentração sérica de estrógeno e progesterona em cadelas durante o ciclo estral por imunoensaio multianalito (Luminex® xMAP®), visando avaliar a aplicabilidade fisiológica e comparar os resultados obtidos com os valores já estabelecidos na literatura pelo método de radioimunoensaio (RIE). Foram utilizadas 7 cadelas da raça Border Collie, residentes do Canil Espaço Ducão (Valinhos/SP) de diferentes idades e ao primeiro sinal de sangramento vulvar (proestro/estro) foram coletadas amostras a cada 48 hs e ao seu termino (diestro), foi realizado coletas semanalmente (intervalo de 7 dias) durante aproximadamente 3 semanas. Houve correlação positiva apenas entre os valores de progesterona na fase de proestro/estro (p=0,001). Apesar de não ter ocorrido correlação entre as outras fases, as medias dos valores séricos de estradiol e progesterona foram estatisticamente significantes, em ambas as fases, sendo os valores obtidos pelo Luminex® maiores que os obtidos pelo RIE. Os valores de progesterona confirmaram os dados fisiológicos esperados em ambas as metodologias, porém os valores de estradiol não foram compatíveis com o esperado fisiologicamente, exceto quando analisados a partir das medias globais em ambas as fases. Novos estudos de validação laboratorial serão necessários para confirmar a validação fisiológica, principalmente no perfil da progesterona. Podemos concluir ainda que os valores de referência para o Luminex® devem ser diferentes dos valores já estabelecidos pelo RIE para ambos os hormônios testados
Title in English
Seric evaluation of estrogen and progesterone by multiplex immunoassay in bitches during the estrous cycle
Keywords in English
Bitches
Estrogen
Luminex®
Progesterone
RIA
Abstract in English
The study aimed to evaluate the serum concentration of estrogen and progesterone in female dogs during the estrous cycle by multiplex immunoassay (Luminex® xMAP®), to evaluate the physiological applicability and compare the results with the values established in the literature by radioimmunoassay (RIA). We used seven Border Collie bitches, residents in Kennel Espaço Ducão (Valinhos/SP), of different ages and for the first sign of vulvar bleeding (proestrus/estrus) samples were collected every 48 hours and its end (diestrus) were collected weekly (every 7 days) for about three weeks. There was a positive correlation only between progesterone values in the proestrus/estrus phase (p = 0.001). Despite having not occurred correlation between the other phases, the median of serum estradiol and progesterone values were statistically significant in both phases, the values obtained by Luminex® is higher than by RIA. Progesterone values confirmed the expected physiological data in both methods, however estradiol values were not physiologically compatible with the expected, except when analyzed from the global mean in both phases. A laboratory validation studies will be needed to confirm the physiological validation, especially in progesterone profile, and we can conclude that the reference values for the Luminex® should be different from the values established by RIE for both hormones tested
 
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Publishing Date
2016-09-05
 
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