2007
DOI: 10.1093/gerona/62.11.1204
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Advanced Glycation End-Product Accumulation and Associated Protein Modification in Type II Skeletal Muscle With Aging

Abstract: One mechanism that may influence the quality of skeletal muscle proteins, and explain the age-related decline in contractility, is protein damage. Advanced glycation end-products (AGE) in vivo are useful biomarkers of damage. In this study, comparison of extensor digitorum longus (EDL) muscles from young (8 months), old (33 months), and very old (36 months) Fischer 344 Brown Norway F1 (F344BNF1) hybrid rats shows that muscles from the very old rats have a significantly higher percentage of myofibers that immun… Show more

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Cited by 69 publications
(56 citation statements)
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“…Age-related AGEs accumulation in skeletal muscle has been previously reported in an animal model [25], but in the present study, AGEs accumulation was unchanged by aging. Even GLO-1 levels were not changed in skeletal muscle.…”
Section: Discussioncontrasting
confidence: 45%
See 1 more Smart Citation
“…Age-related AGEs accumulation in skeletal muscle has been previously reported in an animal model [25], but in the present study, AGEs accumulation was unchanged by aging. Even GLO-1 levels were not changed in skeletal muscle.…”
Section: Discussioncontrasting
confidence: 45%
“…Even GLO-1 levels were not changed in skeletal muscle. Other studies have shown an increasing pattern of AGEs accumulation in skeletal muscle by aging used 33-month rats as the old groups [25]. In the present study, we used 22-month mice, which could explain the discrepancy between results, and suggests AGEs accumulation in the skeletal muscle might accelerate after 22 months in mice.…”
Section: Discussionmentioning
confidence: 67%
“…24,25 Similarly, progressive accumulation of AGE-modified proteins with aging and modification of critical enzymes in muscle energy production have been reported in experimental animals. 26 The accumulation of AGEs in myocytes is considered a pathogenic mechanism for the myocardial damage observed in diabetes mellitus. 27 Moreover, early glycated products such as glycated albumin are also capable of stimulating the production of reactive oxygen species (ROS) in cardiac myocytes.…”
Section: Discussionmentioning
confidence: 99%
“…In a study comparing the extensor digitorum longus muscle (fast-twitch muscle) from young and very old rats, the older rats had a significantly greater percentage (10-fold difference) of myofibers that immunolabeled intracellularly for CML compared to the younger group (Snow et al, 2007). The pattern of the AGE immunolabeling had two characteristic appearances at the individual myofiber level.…”
Section: Glycation and Aging Skeletal Musclementioning
confidence: 99%