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Your search keyword '"fatores de crescimento"' showing total 5 results
Start Over Descriptor "fatores de crescimento" Publisher colegio brasileiro de patologia animal - cbpa
5 results on '"fatores de crescimento"'

1. Plasma rico em plaquetas: estudo comparativo entre a dupla centrifugação e o filtro E-PET (Equine Platelet Enhancement Therapy).

Author

Conceição, Mariana L., Alvarenga, Marina L., Souza, Jaqueline B., Mattos, Luiz Henrique L., Rodrigues, Celso A., Watanabe, Marcos J., Hussni, Carlos Alberto, and Alves, Ana Liz G.

Abstract

Copyright of Pesquisa Veterinaria Brasileira is the property of Colegio Brasileiro de Patologia Animal - CBPA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2017
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2. Platelet activation: Ultrastructure and morphometry in platelet-rich plasma of horses.

Author

Zandim, Bruna M., de Souza, Maria V., Magalhães, Pablo C., Benjamin, Laércio dos A., Maia, Leandro, de Oliveira, Aécio C., de O. Pinto, José, and Ribeiro Júnior, José I.

Abstract

The article presents a study that examines the activation capability of platelet-rich plasma (PRP) by pharmacological agents. It describes the method of the study that obtains PRP from four healthy crossbred geldings aged 13 to 16 years. It also notes that the PRP samples were activated using calcium chloride solution and bovine thrombin. The findings of the study indicate that PRP presents adequate percentage of fully activated platelets and it also has significant amount of resting type that can be activated in the injured tissue.

Published
2012
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3. Bone Morphogenetic Protein-6 (BMP-6) induces atresia in goat primordial follicles cultured in vitro.

Author

Araújo, Valdevane Rocha, Lima-Verde, Isabel Bezerra, Olazia Name, Khessler Patrícia, Báo, Sônia Nair, Campello, Cláudio Cabral, Viana Silva, José Roberto, Ribeiro Rodrigues, Ana Paula, and de Figueiredo, José Ricardo

Abstract

The article discusses research on the impact of bone morphogenetic protein 6 (BMP-6) on in vitro primordial follicle development in goats. The study procedure included the collection of goat ovarian cortex samples that were cultured in Minimum Essential Medium for one to seven days. Results revealed the enhancement by BMP-6 of the percentages of atretic primordial follicles. Researchers concluded that BMP-6 does not have a disadvantage to the ultrastructure and survival of goat primordial follicles.

Published
2010

5. A Proteína Morfogenética Óssea-6 (BMP-6) induz a atresia em folículos primordiais caprinos cultivados in vitro

Author

Cláudio Cabral Campello, José Roberto Viana Silva, Valdevane Rocha Araújo, I.B. Lima-Verde, Ana Paula Ribeiro Rodrigues, José Ricardo de Figueiredo, Sônia Nair Báo, and Khessler Patrícia Olazia Name

Subjects
medicine.medical_specialty, Proteína morfogenética óssea, goats, Ovarian Cortex, Biology, Superfamília TGF-β, Follicle, célula germinativa, folliculogenesis, Internal medicine, Follicular phase, growth factors, medicine, TGF-β superfamily, General Veterinary, foliculogênese, Histology, caprinos, germ cell, Oocyte, medicine.disease, medicine.anatomical_structure, Endocrinology, Crescimento, Atresia, Ultrastructure, Caprino, Folliculogenesis, fatores de crescimento
Abstract

O presente estudo investigou os efeitos da proteína morfogenética óssea-6 (BMP-6) no desenvolvimento in vitro de folículos primordiais caprinos. Amostras de córtex ovariano de cabras foram cultivados por 1 ou 7 dias em Meio Essencial Mínimo (meio controle) suplementado com diferentes concentrações de BMP-6. As taxas de sobrevivência, ativação e crescimento foram avaliadas por histologia clássica e microscopia eletrônica de transmissão (MET). Após 7 dias de cultivo, a análise histológica demonstrou que a BMP-6 aumentou o percentual de folículos primordiais degenerados no dia 7 quando comparados ao controle fresco (D0). Além disso, houve um aumento significativo do diâmetro folicular e oocitário em ambos os períodos de cultivo em todos os tratamentos na presença de BMP-6. Com a progressão do cultivo do dia 1 para o dia 7, nos tratamentos com 1 ou 50ng/ml de BMP-6, foi observado um aumento significativo no diâmetro folicular. Entretanto, contrário ao observado no meio controle, a MET revelou que os folículos cultivados nesses tratamentos apresentavam sinais evidentes de atresia. Em conclusão, esse estudo demonstrou que a BMP-6 afeta negativamente a sobrevivência e a ultra-estrutura de folículos primordiais caprinos. This study investigated the effects of bone morphogenetic protein 6 (BMP-6) on in vitro primordial follicle development in goats. Samples of goat ovarian cortex were cultured in vitro for 1 or 7 days in Minimum Essential Medium (control medium) supplemented with different concentrations of BMP-6. Follicle survival, activation and growth were evaluated through histology and transmission electron microscopy (TEM). After 7 days of culture, histological analysis demonstrated that BMP-6 enhanced the percentages of atretic primordial follicles when compared to fresh control (day 0). Nevertheless, BMP-6 increased follicular and oocyte diameter during both culture periods. As the culture period progressed from day 1 to day 7, a significant increase in follicle diameter was observed with 1 or 50ng/ml BMP-6. However, on the contrary to that observed with the control medium TEM revealed that follicles cultured for up to 7 days with 1 or 50ng/ml BMP-6 had evident signs of atresia. In conclusion, this study demonstrated that BMP-6 negatively affects the survival and ultrastructure of goat primordial follicles.

Published
2010

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