Beneficial effects of resistance training on the protein profile of the calcaneal tendon during aging

Autor(es):Mostrar menos -

Barin, Fabricio R. ^[1] ; Durigan, Joao Luiz Q. ^[1] ; Oliveira, Kleber de S. ^[2] ; Migliolo, Ludovico ^[3] ; Almeida, Jeeser Alves ^[4] ; Carvalho, Marcia ^[1] ; Petriz, Bernardo ^{[2, 5]} ; Selistre-de-Araujo, Heloisa Sobreiro ^[6] ; Fontes, Wagner ^[7] ; Franco, Octavio L. ^{[2, 4, 3]} ; Marqueti, Rita de C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Brasilia UNB, Fac Ceilandia, Brasilia, DF - Brazil

^[2] Univ Catolica Brasilia, Ctr Anal Prote & Bioquim, Brasilia, DF - Brazil

^[3] Univ Catolica Dom Bosco, S Inova Biotech, Campo Grande, MS - Brazil

^[4] Univ Fed Mato Grosso do Sul UFMS, Dept Educ Fis, Campo Grande, MS - Brazil

^[5] Ctr Univ UDF, Brasilia, DF - Brazil

^[6] Univ Fed Sao Carlos UFSCar, Dept Ciencias Fisiol, Sao Carlos, SP - Brazil

^[7] Univ Brasilia, Inst Biol, Dept Biol Celular, Lab Bioquim & Quim Prot, Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Experimental Gerontology; v. 100, p. 54-62, DEC 15 2017.
• Citações Web of Science: 2

Resumo

The calcaneal tendon (CT) is the most commonly injured tendon in the human body. Moreover, with advancing age, the amount of damage increases further. Resistance training (RT) could be used to minimize such damages. The aim of the present study was to obtain the identification, detailed protein cataloging and biochemical characterization based on the effects of the aging process and the RT in CT of rats. The analysis by liquid chromatography tandem-mass spectrometry showed 142 distinct proteins, however, only 29 proteins met the inclusion criteria and were analyzed. Aging causes a reduction in the abundance of seven proteins related to extracellular matrix organization, biological regulation and cellular processes. However, RT promoted the positive regulation of proteins important for the maintenance of healthy tendons: seven proteins in young trained and two in older trained group. This study contributes to a better understanding of molecular aspects of the tendon. The down regulation of proteins linked to mechanical function and extracellular matrix remodeling of the tendon during aging can contribute to the increase of injury and weakness in the tendon. Nevertheless, RT proved to be a tool to prevent these adverse effects during aging by increasing proteins involved in the functionality of the tendon. (AU)

• Processo FAPESP: 11/11229-3 - Matriz extracelular no envelhecimento e suas adaptações ao treinamento de força no tendão calcâneo de ratos: abordagem molecular, celular e biomecânica
• Beneficiário: Heloisa Sobreiro Selistre de Araújo
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/19390-5 - Matriz extracelular no envelhecimento e suas adaptações ao treinamento de força no tendão calcâneo de ratos: abordagem molecular, celular e biomecânica.
• Beneficiário: Rita de Cássia Marqueti Durigan
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado