2003
DOI: 10.3900/fpj.2.5.289.p
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Níveis séricos de IGF-1 em gerontes

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Cited by 9 publications
(7 citation statements)
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“…The IGF-1 signaling pathway is known to be altered in skeletal muscles during aging when the decline of the regenerative capability of muscle tissue occurs [128]. In addition, reduced levels of circulating IGF-1 have been described in serum from elderly individuals with a positive correlation with the decline of protein synthesis and muscle mass and increased levels of myostatin and fatty tissue accumulation [129,130,131,132,133]. In contrast, the overexpression of the mIGF-1 transgene revealed a protective action of this specific isoform against skeletal muscle decline during senescence in mice [134].…”
Section: Igf-1 As a Modulatory Factor In Muscle Niche Promoting Rmentioning
confidence: 99%
“…The IGF-1 signaling pathway is known to be altered in skeletal muscles during aging when the decline of the regenerative capability of muscle tissue occurs [128]. In addition, reduced levels of circulating IGF-1 have been described in serum from elderly individuals with a positive correlation with the decline of protein synthesis and muscle mass and increased levels of myostatin and fatty tissue accumulation [129,130,131,132,133]. In contrast, the overexpression of the mIGF-1 transgene revealed a protective action of this specific isoform against skeletal muscle decline during senescence in mice [134].…”
Section: Igf-1 As a Modulatory Factor In Muscle Niche Promoting Rmentioning
confidence: 99%
“…O IGF-1 está ligado principalmente ao transportador denominado proteína de ligação semelhante à insulina-3 (Insulin-Like Binding Protein-3 -IGFBP-3) (Grimberg & Cohen, 2000). A redução da secreção de IGF-1 e do IGFBP-3 decorrente do envelhecimento pode estar associada à perda de massa magra e força muscular (Cappola, Bandeen-Roche, Wand, Volpato, & Fried, 2001), à diminuição da síntese de proteína e ao aumento da massa adiposa (Friedrich et al, 2009;Oliveira, Côrtes, Vale, & Dantas, 2003). O principal regulador do IGF-1 é o hormônio de crescimento (Growth Hormone -GH).…”
Section: Introductionunclassified
“…A nutrição desequilibrada, a presença de doenças crônicas, a ingestão de álcool, a disfunção do fígado e os baixos níveis de atividade física são fatores que podem comprometer a liberação de IGF-1 6 . Neste sentido, o exercício físico pode ser uma estratégia para estimular a secreção de IGF-1, principalmente, por apresentar, através do treinamento de força, uma alta correlação positiva com aumentos séricos do IGF-1 7 . A força permite ao idoso realizar suas AVD com menos estresse fisiológico 8 .…”
Section: Introductionunclassified