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Del Collado M, da Silveira JC, Oliveira MLF, Alves BMSM, Simas RC, Godoy AT, Coelho MB, Marques LA, Carriero MM, Nogueira MFG, Eberlin MN, Silva LA, Meirelles FV, Perecin F. In vitro maturation impacts cumulus-oocyte complex metabolism and stress in cattle. Reproduction 2017; 154:881-893. [PMID: 28971896 DOI: 10.1530/rep-17-0134] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 09/14/2017] [Accepted: 10/02/2017] [Indexed: 12/13/2022]
Abstract
The influence of in vitro maturation (IVM) in oocytes is still not totally understood. The aim of this study was to determine the influence of IVM on the metabolism and homeostasis of bovine cumulus-oocyte complexes. In the present study, we demonstrated that IVM leads to accumulation of neutral lipids associated with differential levels of the mono-, di- and triacylglycerols in both cumulus cells and oocytes. We observed that in vitro-matured oocytes exhibited decreased glutathione and reactive oxygen species levels and a lower ATP/ADP ratio when compared to in vivo-matured oocytes, with no significant differences in metabolism and stress-related mRNA or miRNA levels. Moreover, in addition to an increase in lipids in in vitro-matured cumulus cells, fatty acid synthesis and accumulation as well as glycolysis pathway genes were upregulated, whereas those affiliated with the β-oxidation pathway were decreased. Our gene expression data in cumulus cells suggest the disruption of endoplasmic reticulum stress, apoptosis and cellular stress response pathways during IVM. Furthermore, a total of 19 miRNAs were significantly altered by the maturation process in cumulus cells. These results indicate some new negative influences of the in vitro system in cumulus-oocyte complexes, demonstrating the occurrence of functional disruption in lipid metabolism and stress pathways and showing evidences suggesting the occurrence of altered mitochondrial activity and energy metabolism during IVM, with a massive dysregulation of the corresponding transcripts in the surrounding cumulus cells.
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Affiliation(s)
- Maite Del Collado
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Juliano C da Silveira
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Marcelo L F Oliveira
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Bárbara M S M Alves
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Rosineide C Simas
- ThoMSon Mass Spectrometry LaboratoryInstitute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Adriana T Godoy
- ThoMSon Mass Spectrometry LaboratoryInstitute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Mirela B Coelho
- ThoMSon Mass Spectrometry LaboratoryInstitute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Lygia A Marques
- ThoMSon Mass Spectrometry LaboratoryInstitute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Mateus M Carriero
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Marcelo F G Nogueira
- Biological Sciences DepartmentSchool of Science, Humanities and Languages, Sao Paulo State University, Assis, São Paulo, Brazil
| | - Marcos N Eberlin
- ThoMSon Mass Spectrometry LaboratoryInstitute of Chemistry, University of Campinas, Campinas, São Paulo, Brazil
| | - Luciano A Silva
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Flávio V Meirelles
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
| | - Felipe Perecin
- Veterinary Medicine DepartmentFaculty of Animal Science and Food Engineering (FZEA), University of Sao Paulo (USP), Pirassununga, São Paulo, Brazil
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Daher RF, Souza LB, Gravina GA, Machado JC, Ramos HCC, Silva VQR, Menezes BRS, Schneider LSA, Oliveira MLF, Gottardo RD. Use of elephant grass for energy production in Campos dos Goytacazes-RJ, Brazil. Genet Mol Res 2014; 13:10898-908. [PMID: 25526210 DOI: 10.4238/2014.december.19.11] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Elephant grass is a tropical forage plant widely distributed throughout Brazil. It was first exclusively used in the livestock sector as cattle feed. The grass is characterized by its high productivity and photosynthetic capacity and is considered as an alternative source of renewable energy. Here, we estimated the general combining ability of the parents and specific combining ability of the hybrids based on morpho-agronomic biomass-quality traits. The experiment was conducted in a randomized block design with 3 replicates. The diallel was composed of 16 hybrids and 2 groups of genitors. In the diallel analysis of variance, we observed a significant difference among treatments. A significant difference was observed among genitors for dry matter production (DMP). For the general combining ability of group 1, the traits leaf blade width, DMP, height, percentage of neutral detergent fiber, percentage of hemicellulose, percentage of lignin, percentage of acid detergent fiber, and percentage of cellulose were significant. For the estimates of general combining ability of DMP, parents Porto Rico 534-B, Vruckwona, Taiwan A-146, and Mercker S. E. A. were 0.4748, 3.2819, 1.1659, and 0.4317. The parents of Mercker S. E. A. and Porto Rico 534-B produced the highest percentage of detergent fiber and percentage of lignin with values of 0.1482 and 0.0856. Thus, parents Vruckwona, Porto Rico 534-B, and Taiwan A-146 are promising for integration into breeding programs. The best hybrid combinations for DMP were 1 x 5, 1 x 8, 2 x 6, 3 x 7, and 4 x 5.
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Affiliation(s)
- R F Daher
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - L B Souza
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - G A Gravina
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - J C Machado
- Embrapa Gado de Leite, Juiz de Fora, MG, Brasil
| | - H C C Ramos
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - V Q R Silva
- Embrapa Agrossilvipastoril, Sinop, MT, Brasil
| | - B R S Menezes
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - L S A Schneider
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - M L F Oliveira
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
| | - R D Gottardo
- Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brasil
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