Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/232028 |
Resumo: | Background: Chronic exercise and food restriction (FR) have directionally opposite changes in transcription of molecular structures of calcium handling and thyroid hormone (TH) status. Objective: Evaluate the association of chronic exercise and FR on serum thyroid hormones and gene transcription of molecular structures of intracellular calcium transients and thyroid receptors in myocardium of rats. Methods: Male Wistar Kyoto rats, divided into two groups: control (C, n = 7), FR (R50', n = 7), chronic exercise (EX, n = 7) and chronic exercise + FR (EX50', n = 7). FR was of 50% and exercise was swimming (1 hour/day, 5 days/ week, during 12 weeks). Serum concentrations of T3', T4 and TSH were determined. The mRNA gene expression of the sarcoplasmatic reticulum calcium pump (SERCA2a), phospholamban (PLB), Na+/Ca+2 exchanger (NCX), calcium channel L-type (L-channel), ryanodine (RYR), calsequestrin (CQS) and HT receptor (TRα1 and TRβ1) of the myocardium was performed by PCR real-time. Results: FR reduced serum levels of T4 and TSH and TRα1 mRNA and increased the expression of PLB, NCX and L-channel. Exercise increased the TRβ1 receptor, L-channel and NCX. The association of exercise and FR reduced plasma T4 and TSH, TRβ1 mRNA increase, SERCA2a, NCX and PLB, and there was a significant correlation of TRβ1 with CQS and NXC. Conclusion: Chronic exercise and food restriction increased the mRNA of transient Ca2+ proteins; however, TH - receptor axis cannot participate in the transcription of mRNA of myocardial calcium transient proteins. |
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Repositório Institucional da UNESP |
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Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restrictionCalciumCaloric restrictionCarrier proteinsExerciseMyocardiumThyroid hormonesBackground: Chronic exercise and food restriction (FR) have directionally opposite changes in transcription of molecular structures of calcium handling and thyroid hormone (TH) status. Objective: Evaluate the association of chronic exercise and FR on serum thyroid hormones and gene transcription of molecular structures of intracellular calcium transients and thyroid receptors in myocardium of rats. Methods: Male Wistar Kyoto rats, divided into two groups: control (C, n = 7), FR (R50', n = 7), chronic exercise (EX, n = 7) and chronic exercise + FR (EX50', n = 7). FR was of 50% and exercise was swimming (1 hour/day, 5 days/ week, during 12 weeks). Serum concentrations of T3', T4 and TSH were determined. The mRNA gene expression of the sarcoplasmatic reticulum calcium pump (SERCA2a), phospholamban (PLB), Na+/Ca+2 exchanger (NCX), calcium channel L-type (L-channel), ryanodine (RYR), calsequestrin (CQS) and HT receptor (TRα1 and TRβ1) of the myocardium was performed by PCR real-time. Results: FR reduced serum levels of T4 and TSH and TRα1 mRNA and increased the expression of PLB, NCX and L-channel. Exercise increased the TRβ1 receptor, L-channel and NCX. The association of exercise and FR reduced plasma T4 and TSH, TRβ1 mRNA increase, SERCA2a, NCX and PLB, and there was a significant correlation of TRβ1 with CQS and NXC. Conclusion: Chronic exercise and food restriction increased the mRNA of transient Ca2+ proteins; however, TH - receptor axis cannot participate in the transcription of mRNA of myocardial calcium transient proteins.Instituto de Ciências da Saúde - Universidade Federal de Mato Grosso - UFMT Campus de Sinop, BotucatuCuiabá, MT Faculdade de Medicina - Universidade Estadual Paulista - UNESP Campus de Botucatu, BotucatuCuiabá, MT Faculdade de Medicina - Universidade Estadual Paulista - UNESP Campus de Botucatu, BotucatuInstituto de Ciências da Saúde - Universidade Federal de Mato Grosso - UFMTUniversidade Estadual Paulista (UNESP)Sugizaki, Mário Mateus [UNESP]Leopoldo, Ana Paula Lima [UNESP]Conde, Sandro José [UNESP]Campos, Dijon Salome [UNESP]Damato, Ricardo [UNESP]Leopoldo, André Soares [UNESP]do Nascimento, André Ferreira [UNESP]Júnior, Silvio de Assis Oliveira [UNESP]Cicogna, Antonio Carlos [UNESP]2022-04-29T08:48:45Z2022-04-29T08:48:45Z2011-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleArquivos Brasileiros de Cardiologia, v. 97, n. 1, 2011.0066-782X1678-4170http://hdl.handle.net/11449/2320282-s2.0-80052758480Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengArquivos Brasileiros de Cardiologiainfo:eu-repo/semantics/openAccess2024-08-14T17:22:36Zoai:repositorio.unesp.br:11449/232028Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-14T17:22:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
title |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
spellingShingle |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction Sugizaki, Mário Mateus [UNESP] Calcium Caloric restriction Carrier proteins Exercise Myocardium Thyroid hormones |
title_short |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
title_full |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
title_fullStr |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
title_full_unstemmed |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
title_sort |
Upregulation of mRNA myocardium calcium handling in rats submitted to exercise and food restriction |
author |
Sugizaki, Mário Mateus [UNESP] |
author_facet |
Sugizaki, Mário Mateus [UNESP] Leopoldo, Ana Paula Lima [UNESP] Conde, Sandro José [UNESP] Campos, Dijon Salome [UNESP] Damato, Ricardo [UNESP] Leopoldo, André Soares [UNESP] do Nascimento, André Ferreira [UNESP] Júnior, Silvio de Assis Oliveira [UNESP] Cicogna, Antonio Carlos [UNESP] |
author_role |
author |
author2 |
Leopoldo, Ana Paula Lima [UNESP] Conde, Sandro José [UNESP] Campos, Dijon Salome [UNESP] Damato, Ricardo [UNESP] Leopoldo, André Soares [UNESP] do Nascimento, André Ferreira [UNESP] Júnior, Silvio de Assis Oliveira [UNESP] Cicogna, Antonio Carlos [UNESP] |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Instituto de Ciências da Saúde - Universidade Federal de Mato Grosso - UFMT Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Sugizaki, Mário Mateus [UNESP] Leopoldo, Ana Paula Lima [UNESP] Conde, Sandro José [UNESP] Campos, Dijon Salome [UNESP] Damato, Ricardo [UNESP] Leopoldo, André Soares [UNESP] do Nascimento, André Ferreira [UNESP] Júnior, Silvio de Assis Oliveira [UNESP] Cicogna, Antonio Carlos [UNESP] |
dc.subject.por.fl_str_mv |
Calcium Caloric restriction Carrier proteins Exercise Myocardium Thyroid hormones |
topic |
Calcium Caloric restriction Carrier proteins Exercise Myocardium Thyroid hormones |
description |
Background: Chronic exercise and food restriction (FR) have directionally opposite changes in transcription of molecular structures of calcium handling and thyroid hormone (TH) status. Objective: Evaluate the association of chronic exercise and FR on serum thyroid hormones and gene transcription of molecular structures of intracellular calcium transients and thyroid receptors in myocardium of rats. Methods: Male Wistar Kyoto rats, divided into two groups: control (C, n = 7), FR (R50', n = 7), chronic exercise (EX, n = 7) and chronic exercise + FR (EX50', n = 7). FR was of 50% and exercise was swimming (1 hour/day, 5 days/ week, during 12 weeks). Serum concentrations of T3', T4 and TSH were determined. The mRNA gene expression of the sarcoplasmatic reticulum calcium pump (SERCA2a), phospholamban (PLB), Na+/Ca+2 exchanger (NCX), calcium channel L-type (L-channel), ryanodine (RYR), calsequestrin (CQS) and HT receptor (TRα1 and TRβ1) of the myocardium was performed by PCR real-time. Results: FR reduced serum levels of T4 and TSH and TRα1 mRNA and increased the expression of PLB, NCX and L-channel. Exercise increased the TRβ1 receptor, L-channel and NCX. The association of exercise and FR reduced plasma T4 and TSH, TRβ1 mRNA increase, SERCA2a, NCX and PLB, and there was a significant correlation of TRβ1 with CQS and NXC. Conclusion: Chronic exercise and food restriction increased the mRNA of transient Ca2+ proteins; however, TH - receptor axis cannot participate in the transcription of mRNA of myocardial calcium transient proteins. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07-01 2022-04-29T08:48:45Z 2022-04-29T08:48:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Arquivos Brasileiros de Cardiologia, v. 97, n. 1, 2011. 0066-782X 1678-4170 http://hdl.handle.net/11449/232028 2-s2.0-80052758480 |
identifier_str_mv |
Arquivos Brasileiros de Cardiologia, v. 97, n. 1, 2011. 0066-782X 1678-4170 2-s2.0-80052758480 |
url |
http://hdl.handle.net/11449/232028 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Arquivos Brasileiros de Cardiologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128127889571840 |