Myotendinous junction adaptations to ladder-based resistance training: identification of a new telocyte niche

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorSão Judas Tadeu University (USJT)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorPimentel Neto, Jurandyr [UNESP]-
Autor(es): dc.creatorRocha, Lara Caetano [UNESP]-
Autor(es): dc.creatorBarbosa, Gabriela Klein [UNESP]-
Autor(es): dc.creatorJacob, Carolina dos Santos [UNESP]-
Autor(es): dc.creatorKrause Neto, Walter-
Autor(es): dc.creatorWatanabe, Ii-sei-
Autor(es): dc.creatorCiena, Adriano Polican [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:26:58Z-
Data de disponibilização: dc.date.available2022-02-22T00:26:58Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41598-020-70971-6-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199289-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199289-
Descrição: dc.descriptionThe present study shows chronic adjustments in the myotendinous junction (MTJ) in response to different ladder-based resistance training (LRT) protocols. Thirty adult male Wistar rats were divided into groups: sedentary (S), calisthenics (LRT without additional load [C]), and resistance-trained (LRT with extra weight [R]). We demonstrated longer lengths of sarcoplasmatic invaginations in the trained groups; however, evaginations were seen mainly in group R. We showed a greater thickness of sarcoplasmatic invaginations in groups C and R, in addition to greater evaginations in R. We also observed thinner basal lamina in trained groups. The support collagen layer (SCL) adjacent to the MTJ and the diameters of the transverse fibrils were larger in R. We also discovered a niche of telocytes in the MTJ with electron micrographs of the plantar muscle and with immunostaining with CD34+ in the gastrocnemius muscle near the blood vessels and pericytes. We concluded that the continuous adjustments in the MTJ ultrastructure were the result of tissue plasticity induced by LRT, which is causally related to muscle hypertrophy and, consequently, to the remodeling of the contact interface. Also, we reveal the existence of a collagen layer adjacent to MTJ and discover a new micro anatomic location of telocytes.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionLaboratory of Morphology and Physical Activity (LAMAF) Institute of Biosciences (IB) São Paulo State University “Júlio de Mesquita Filho”-UNESP-
Descrição: dc.descriptionLaboratory of Morphoquantitative Studies and Immunohistochemistry Department of Physical Education São Judas Tadeu University (USJT)-
Descrição: dc.descriptionDepartment of Anatomy,ICB-III University of São Paulo-USP-
Descrição: dc.descriptionLaboratory of Morphology and Physical Activity (LAMAF) Institute of Biosciences (IB) São Paulo State University “Júlio de Mesquita Filho”-UNESP-
Descrição: dc.descriptionFAPESP: 2017/12525-1-
Descrição: dc.descriptionFAPESP: 2017/21977-3-
Descrição: dc.descriptionFAPESP: 2018/09199-8-
Idioma: dc.languageen-
Relação: dc.relationScientific Reports-
???dc.source???: dc.sourceScopus-
Título: dc.titleMyotendinous junction adaptations to ladder-based resistance training: identification of a new telocyte niche-
Tipo de arquivo: dc.typelivro digital-
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