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Registros recuperados: 4
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Grb10 characterization in bovine cumulus oocyte complexes from different follicle sizes Ciência Rural
Rosa,Paulo Roberto Antunes da; Bohrer,Rodrigo Camponogara; Ludke,Charles Alencar; Cesaro,Matheus Pedroti De; Pereira,Gabriel Ribas; Mondadori,Rafael Gianela; Antoniazzi,Alfredo Quites; Gonçalves,Paulo Bayard Dias.
The objective of this study was to investigate the mRNA expression and protein localization of Grb10 gene in bovine cumulus-oocyte complexes (COCs) from different follicle sizes. Firstly, it was investigated the mRNA expression to correlate with maturation rates. COCs from follicles at 1-3, 4-6, 6-8 and >8mm were used to evaluate Grb10 gene expression by qRT-PCR assay and nuclear maturation rates. It was observed that more competent oocytes (from follicles at 6-8 and >8mm; P>0.05), had lower Grb10 mRNA expression levels when compared to the oocytes from follicles at 1-3 and 4-6mm (P>0.05). After it was performed an immunofluorescence analysis in COCs from different follicle sizes (1-3, 4-6, 6-8 and >8mm) to investigate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: : mRNA; Protein; Maturation; Oocyte; Grb10..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000500898
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Função do interferon-tau durante o reconhecimento materno da gestação em ruminantes Ciência Rural
Antoniazzi,Alfredo Quites; Henkes,Luiz Ernani; Oliveira,João Francisco Coelho; Hansen,Thomas Ross.
O reconhecimento materno da gestação é o período em que o concepto sinaliza sua presença para a mãe. Em ruminantes, este período coincide com o alongamento do embrião e a máxima produção de interferon-tau (IFNT). O IFNT produzido pelo concepto age via parácrina no útero inibindo a expressão dos receptores de estrógenos (ESR1) e de ocitocina (OXTR) no epitélio luminal do endométrio, evitando, assim, a liberação de pulsos luteolíticos de prostaglandina F2 alfa (PGF2 ), hormonio responsável pelo início da luteólise. Além da sua ação durante o reconhecimento materno da gestação em ruminantes, o IFNT aumenta a expressão de vários genes estimulados por interferons (ISGs) no útero, no corpo lúteo (CL) e em células sanguíneas. Estudos recentes demonstraram que o...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Interferon-tau; Reconhecimento materno da gestação; ISG15; Ruminantes.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000100029
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Relationship between clinical and postmortem evaluation in repeat breeder beef cows Ciência Rural
Ferreira,Rogério; Oliveira,João Francisco Coelho de; Antoniazzi,Alfredo Quites; Pimentel,Cláudio Alves; Moraes,José Carlos Ferrugem; Henkes,Luiz Ernani; Bordignon,Vilceu; Gonçalves,Paulo Bayard Dias.
The objective of this study was to investigate the causes of the repeat breeder syndrome comparing clinical signs and postmortem findings in beef cows. The identification of factors affecting the reproductive tract can support decisions as to whether treatment of repeat breeder cows is justifiable than culling. Since all animals were submitted to clinical examination before being slaughtered, this study has a differential approach when compared with others, where genital tracts from abattoir were examined. In this study, 130 crossbred cows and heifers that have failed to conceive after three or more services were identified, submitted to a clinical examination and blood collection for karyotyping and sent to an abattoir. postmortem examinations included...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Repeat breeder; Beef cows; Cattle; Infertility; Theriogenology.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000400023
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Comparison of the effects of triamcinolone acetonide or platelet-rich plasma on expression of extracellular matrix-related genes in equine healthy chondrocytes in vitro Ciência Rural
Palma,Heloisa Einloft; Gallio,Miguel; Silva,Gabriele Biavaschi da; Cantarelli,Camila; Bertolin,Kalyne; Wolkmer,Patrícia; Wergutz,Julien; Krause,Luciana Maria Fontanari; Krause,Alexandre; Antoniazzi,Alfredo Quites; Brass,Karin Erica; Corte,Flavio Desessards De La.
ABSTRACT: In healthy cartilage, chondrocytes maintain an expression of collagens and proteoglycans and are sensitive to growth factors and cytokines that either enhance or reduce type II collagen synthesis. In osteoarthritis, pro-inflammatory cytokines, such as IL-6, induce overexpression of metalloproteinases (MMP) and decreasing synthesis of aggrecan. Use of chondroprotectors agents, such as Platelet-Rich Plasma (PRP) and triamcinolone (TA) are alternatives to reduce the progression of joint damage. In this study, we used chondrocytes extracted from metacarpophalangeal joints of healthy horses as the experimental model. Cells were treated in vitro with PRP or TA. No differences were observed between these treatments in comparison to the control group...
Tipo: Info:eu-repo/semantics/article Palavras-chave: MMPs; IL-6; Aggrecan; Cartilage; Osteoarthritis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000700601
Registros recuperados: 4
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