[Relationship between fibroblast growth factor-21, muscle mass, and function outcomes in overweight and obese older adults living in the community. An exploratory study].
Rev Esp Geriatr Gerontol 2021;
56:81-86. [PMID:
33422362 DOI:
10.1016/j.regg.2020.11.004]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/26/2020] [Accepted: 11/05/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND
Age-related decreases in muscle mass and function are associated with the development of metabolic impairments, particularly in the context of obesity. Fibroblast growth factor21 (FGF-21) has been suggested as a common mediator of both processes. No known studies have examined the association between FGF-21 and muscle mass and function in overweight or obese older adults. With this in mind, this study aimed to investigate the association between plasma levels of FGF-21 and muscle mass and function outcomes in overweight or obese older adults.
MATERIALS AND METHODS
Exploratory study, which included 39 adults of 60-70years old with body mass indexes >25kg/m2. As study outcomes, measurements were made of appendicular muscle mass (AMM), grip strength, 5 times sit-to-stand test (5xSTT), as well as plasma levels of FGF-21, fasting glucose, and insulin. The homeostatic model assessment index (HOMA-IR) was also calculated to determine the presence of insulin resistance.
RESULTS
Significant relationships were found between plasma levels of FGF-21 vs 5xSTT (rho=0.49; P<.05). Moreover, FGF-21 levels were significantly higher in those with insulin resistance (P<.05), as well as with having lower levels of AMM (P<.05).
CONCLUSION
There is a relationship between the plasma levels of FGF-21 and muscle function outcomes in overweight or obese older adults. Future studies should investigate the potential causalities between these relationships.
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