Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Magosso, Natalia Santanielo Silva
Orientador(a): Perez, Sergio Eduardo de Andrade lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de São Carlos
Câmpus São Carlos
Programa de Pós-Graduação: Programa Interinstitucional de Pós-Graduação em Ciências Fisiológicas - PIPGCF
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: https://repositorio.ufscar.br/handle/ufscar/7118
Resumo: The reduction in estrogen concentration, a physiological situation of the female aging, in addition to changes such as increased risk of coronary heart disease, loss of muscle mass and loss of bone mass is also associated with changes in fat composition. Studies from our research laboratory show that ST produces benefits such as increasing the amount of lean body mass, glucose control and reduced lipid content in the liver and muscles. Irisin is known to be a potential therapeutic target in metabolic diseases, including obesity, and its molecular mechanisms are initiated through exercise. Objective: To investigate the effects of ST and HR in plasma levels of Irisin, gene and protein expression of factors involved in the action of Irisin in ovariectomized rats. Methods: 66 rats Holtzman were randomly divided into six groups: 1) Sham-Sed; 2) Sham-ST; 3) Ovx-Sed; 4) Ovx-ST; 5) Ovx-Sed-RH; 6) Ovx-ST-RH. The ST protocol required the animals to climb a 1.1 m-long vertical ladder with weights atteched to their tails. Each session consisted of 4 to 8 climbs with 2 minutes interval between climbing, performed once every three days for 12 weeks. Analyses of PGC1-α mRNA expression, and FNDC5 and UCP1 were performed by RT-PCR ΔΔCt method, protein expression analysis of FNDC5 and UCP1 were performed by the Western blotting technique, Irisin and 17β-estradiol levels were determined by ELISA. Results: Our results show that the Sham, Ovx and HR groups who underwent 12 weeks of ST had a higher expression of the Irisin action mechanism, with higher mRNA expression of PGC-1α in the gastrocnemius muscle, increased protein expression FNDC5, higher Irisin concentration in the plasma and increased protein expression of UCP1 in mesenteric fat. Conclusion: Ovariectomized rats had lower circulating concentration Irisina, which promotes browning of white adipose tissue, however, the ST for 12 weeks was an effective intervention strategy to contain higher circulating concentration of Irisin in intact and ovariectomized rats. And the TF associated with RH was an effective intervention strategy to contain higher circulating concentration of Irisin in ovariectomized.
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spelling Magosso, Natalia Santanielo SilvaPerez, Sergio Eduardo de Andradehttp://lattes.cnpq.br/9408953831211309http://lattes.cnpq.br/28494232581498747e79a989-fbf8-4f09-af7a-84b2ec454c0d2016-09-13T18:53:25Z2016-09-13T18:53:25Z2015-09-04MAGOSSO, Natalia Santanielo Silva. Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas. 2015. Dissertação (Mestrado em Ciências Fisiológicas) – Universidade Federal de São Carlos, São Carlos, 2015. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7118.https://repositorio.ufscar.br/handle/ufscar/7118The reduction in estrogen concentration, a physiological situation of the female aging, in addition to changes such as increased risk of coronary heart disease, loss of muscle mass and loss of bone mass is also associated with changes in fat composition. Studies from our research laboratory show that ST produces benefits such as increasing the amount of lean body mass, glucose control and reduced lipid content in the liver and muscles. Irisin is known to be a potential therapeutic target in metabolic diseases, including obesity, and its molecular mechanisms are initiated through exercise. Objective: To investigate the effects of ST and HR in plasma levels of Irisin, gene and protein expression of factors involved in the action of Irisin in ovariectomized rats. Methods: 66 rats Holtzman were randomly divided into six groups: 1) Sham-Sed; 2) Sham-ST; 3) Ovx-Sed; 4) Ovx-ST; 5) Ovx-Sed-RH; 6) Ovx-ST-RH. The ST protocol required the animals to climb a 1.1 m-long vertical ladder with weights atteched to their tails. Each session consisted of 4 to 8 climbs with 2 minutes interval between climbing, performed once every three days for 12 weeks. Analyses of PGC1-α mRNA expression, and FNDC5 and UCP1 were performed by RT-PCR ΔΔCt method, protein expression analysis of FNDC5 and UCP1 were performed by the Western blotting technique, Irisin and 17β-estradiol levels were determined by ELISA. Results: Our results show that the Sham, Ovx and HR groups who underwent 12 weeks of ST had a higher expression of the Irisin action mechanism, with higher mRNA expression of PGC-1α in the gastrocnemius muscle, increased protein expression FNDC5, higher Irisin concentration in the plasma and increased protein expression of UCP1 in mesenteric fat. Conclusion: Ovariectomized rats had lower circulating concentration Irisina, which promotes browning of white adipose tissue, however, the ST for 12 weeks was an effective intervention strategy to contain higher circulating concentration of Irisin in intact and ovariectomized rats. And the TF associated with RH was an effective intervention strategy to contain higher circulating concentration of Irisin in ovariectomized.A redução da concentração de estrógeno, situação fisiológica do envelhecimento feminino, além de alterações como aumento do risco de doença coronariana, perda de massa muscular e perda de massa óssea, também está associada a alterações da composição de gordura. Estudos do nosso laboratório de pesquisa mostram que o TF produz benefícios como aumento da quantidade de massa magra, controle glicêmico e redução do conteúdo de lipídeos no fígado e nos músculos. A Irisina é conhecida por ser um potencial alvo terapêutico em doenças metabólicas, incluindo a obesidade, e os seus mecanismos moleculares iniciam através do exercício físico. Objetivo: Investigar os efeitos do TF e da RH nos níveis plasmáticos de Irisina, expressão gênica e proteica de fatores envolvidos na ação de Irisina em ratas ovariectomizadas. Metodologia: 66 ratas Holtzman foram randomicamente distribuídas em seis grupos experimentais: 1) Sham-Sed; 2) Sham-TF; 3) Ovx-Sed; 4) Ovx-TF; 5) Ovx-Sed-RH; 6) Ovx-TF-RH. O protocolo TF exigiu dos animais a escalada vertical de 1,1 m com pesos atados às suas caudas. Cada sessão consistiu de 4 a 8 escaladas, com intervalo de 2 minutos entre as escaladas, realizadas uma vez a cada três dias durante 12 semanas. As análises de expressão de RNAm de PGC1-α, FNDC5 e UCP1 foram realizadas por PCR-RT pelo método ΔΔCt, as análises de expressão proteica de FNDC5 e UCP1 foram realizadas pela técnica de Western Blotting e as análises de concentração de Irisina e 17β-estradiol foram determinadas por ELISA. Resultados: Os nossos resultados indicam que os grupos Sham, Ovx e RH que realizaram 12 semanas de TF apresentaram respostas positivas no mecanismo de ação de Irisina, apresentando maior expressão de RNAm de PGC-1α no musculo gastrocnêmio, maior expressão proteica de FNDC5, maior concentração de Irisina no plasma e maior expressão proteica de UCP1 na gordura mesentérica. Conclusão: As ratas ovariectomizadas apresentaram menor concentração circulante Irisina, que favorecem o escurecimento do tecido adiposo branco, porém, o TF por 12 semanas foi uma estratégia de intervenção eficaz para apresentar maior concentração circulante de Irisina em ratas intactas e ovariectomizadas. E o TF associado à RH foi uma estratégia de intervenção eficaz para apresentar maior concentração circulante de Irisina em ovariectomizadas.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)porUniversidade Federal de São CarlosCâmpus São CarlosPrograma Interinstitucional de Pós-Graduação em Ciências Fisiológicas - PIPGCFUFSCarOvariectomiaReposição hormonalTreinamento de forçaIrisinaOvariectomyHormone replacement therapyStrength trainingIrisinCIENCIAS BIOLOGICAS::FISIOLOGIAEfeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisOnline60060094c0c56d-5b6c-4622-8f35-ef5d57c5c02cinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALDissNSSM.pdfDissNSSM.pdfapplication/pdf1469317https://repositorio.ufscar.br/bitstream/ufscar/7118/1/DissNSSM.pdf498631be20a405584e3056f51e54c15fMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81957https://repositorio.ufscar.br/bitstream/ufscar/7118/2/license.txtae0398b6f8b235e40ad82cba6c50031dMD52TEXTDissNSSM.pdf.txtDissNSSM.pdf.txtExtracted texttext/plain91999https://repositorio.ufscar.br/bitstream/ufscar/7118/3/DissNSSM.pdf.txtc91a8394bab463d0935eb45489d40524MD53THUMBNAILDissNSSM.pdf.jpgDissNSSM.pdf.jpgIM Thumbnailimage/jpeg7532https://repositorio.ufscar.br/bitstream/ufscar/7118/4/DissNSSM.pdf.jpg9a968fac7e73144559a1d09cdb7801afMD54ufscar/71182023-09-18 18:30:43.25oai:repositorio.ufscar.br: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Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:30:43Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false
dc.title.por.fl_str_mv Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
title Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
spellingShingle Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
Magosso, Natalia Santanielo Silva
Ovariectomia
Reposição hormonal
Treinamento de força
Irisina
Ovariectomy
Hormone replacement therapy
Strength training
Irisin
CIENCIAS BIOLOGICAS::FISIOLOGIA
title_short Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
title_full Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
title_fullStr Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
title_full_unstemmed Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
title_sort Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas
author Magosso, Natalia Santanielo Silva
author_facet Magosso, Natalia Santanielo Silva
author_role author
dc.contributor.authorlattes.por.fl_str_mv http://lattes.cnpq.br/2849423258149874
dc.contributor.author.fl_str_mv Magosso, Natalia Santanielo Silva
dc.contributor.advisor1.fl_str_mv Perez, Sergio Eduardo de Andrade
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/9408953831211309
dc.contributor.authorID.fl_str_mv 7e79a989-fbf8-4f09-af7a-84b2ec454c0d
contributor_str_mv Perez, Sergio Eduardo de Andrade
dc.subject.por.fl_str_mv Ovariectomia
Reposição hormonal
Treinamento de força
Irisina
topic Ovariectomia
Reposição hormonal
Treinamento de força
Irisina
Ovariectomy
Hormone replacement therapy
Strength training
Irisin
CIENCIAS BIOLOGICAS::FISIOLOGIA
dc.subject.eng.fl_str_mv Ovariectomy
Hormone replacement therapy
Strength training
Irisin
dc.subject.cnpq.fl_str_mv CIENCIAS BIOLOGICAS::FISIOLOGIA
description The reduction in estrogen concentration, a physiological situation of the female aging, in addition to changes such as increased risk of coronary heart disease, loss of muscle mass and loss of bone mass is also associated with changes in fat composition. Studies from our research laboratory show that ST produces benefits such as increasing the amount of lean body mass, glucose control and reduced lipid content in the liver and muscles. Irisin is known to be a potential therapeutic target in metabolic diseases, including obesity, and its molecular mechanisms are initiated through exercise. Objective: To investigate the effects of ST and HR in plasma levels of Irisin, gene and protein expression of factors involved in the action of Irisin in ovariectomized rats. Methods: 66 rats Holtzman were randomly divided into six groups: 1) Sham-Sed; 2) Sham-ST; 3) Ovx-Sed; 4) Ovx-ST; 5) Ovx-Sed-RH; 6) Ovx-ST-RH. The ST protocol required the animals to climb a 1.1 m-long vertical ladder with weights atteched to their tails. Each session consisted of 4 to 8 climbs with 2 minutes interval between climbing, performed once every three days for 12 weeks. Analyses of PGC1-α mRNA expression, and FNDC5 and UCP1 were performed by RT-PCR ΔΔCt method, protein expression analysis of FNDC5 and UCP1 were performed by the Western blotting technique, Irisin and 17β-estradiol levels were determined by ELISA. Results: Our results show that the Sham, Ovx and HR groups who underwent 12 weeks of ST had a higher expression of the Irisin action mechanism, with higher mRNA expression of PGC-1α in the gastrocnemius muscle, increased protein expression FNDC5, higher Irisin concentration in the plasma and increased protein expression of UCP1 in mesenteric fat. Conclusion: Ovariectomized rats had lower circulating concentration Irisina, which promotes browning of white adipose tissue, however, the ST for 12 weeks was an effective intervention strategy to contain higher circulating concentration of Irisin in intact and ovariectomized rats. And the TF associated with RH was an effective intervention strategy to contain higher circulating concentration of Irisin in ovariectomized.
publishDate 2015
dc.date.issued.fl_str_mv 2015-09-04
dc.date.accessioned.fl_str_mv 2016-09-13T18:53:25Z
dc.date.available.fl_str_mv 2016-09-13T18:53:25Z
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dc.identifier.citation.fl_str_mv MAGOSSO, Natalia Santanielo Silva. Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas. 2015. Dissertação (Mestrado em Ciências Fisiológicas) – Universidade Federal de São Carlos, São Carlos, 2015. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7118.
dc.identifier.uri.fl_str_mv https://repositorio.ufscar.br/handle/ufscar/7118
identifier_str_mv MAGOSSO, Natalia Santanielo Silva. Efeitos do treinamento de força e da reposição hormonal no mecanismo de ação de irisina de ratas ovariectomizadas. 2015. Dissertação (Mestrado em Ciências Fisiológicas) – Universidade Federal de São Carlos, São Carlos, 2015. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7118.
url https://repositorio.ufscar.br/handle/ufscar/7118
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Câmpus São Carlos
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