The effect of granulated collagen tripeptide on sarcopenia in aged mice compared with collagen tripeptide
Journal of Functional Foods Volume 119 , August 2024, 106318 Chae-Eun Kim
Research highlights
• The excellent absorption rate of gCTP alleviated sarcopenia in aged mice.
• gCTP also affected improving fatty liver and adipocyte hypertrophy in aged mice.
• gCTP administration may improve sarcopenia and lead to chronic disease remission.
• gCTP administration may have a positive impact on overall geriatric health.
This study investigates the efficacy of granulated collagen tripeptide (gCTP) in mitigating sarcopenia in aged mice compared to CTP. 58 weeks (male, n = 38) C57BL/6J mice were divided into 4 groups: an aging control, 0.03 % Gly-Pro-Hyp, 0.9 % CTP, and 0.9 % gCTP-supplemented group. gCTP administration significantly increased lean mass without altering body weight, indicating potential benefits in improving body composition in aged mice. Moreover, gCTP enhanced muscle synthesis pathways, including IGF1/PI3K/mTOR axis and myogenin expression, increasing muscle mass and strength. Additionally, gCTP reduced muscle and systemic inflammation, as evidenced by decreased levels of pro-inflammatory cytokines and myokines. Notably, gCTP enhanced intestinal absorption of peptides, potentially contributing to improved protein synthesis. gCTP demonstrated superior efficacy in alleviating sarcopenia and related symptoms in aged mice compared to CTP, attributed to differences in absorption. These findings provide insights into the potential of gCTP supplementation as a therapeutic strategy for sarcopenia.