Abstract
Background
Because frailty is a major health concern among older patients, identifying frailty-related biomarkers will help in the early detection and prevention of frailty. Thus, we aimed to determine the association between circulating levels of silent mating-type information regulation 2 homolog 1 (SIRT1) and frailty.
Methods
We assessed circulating SIRT1 levels in 16 robust, 74 prefrail, and 40 frail older adults. Frailty was diagnosed based on the Fried phenotype. Circulating cytokine and adipokine (e.g., vaspin, adiponectin, and leptin) levels were assessed. Differences in SIRT1 levels among the three subject groups were compared; correlations of SIRT1 levels with physical function and adipokine and cytokine levels were analyzed.
Results
Serum SIRT1 levels were significantly higher among frail older adults than among robust ones. Older adults with slowness or weight loss had high SIRT1 levels. Serum SIRT1 levels negatively correlated with gait speed, even after adjustment for age and sex; age; and insulin, vaspin, and leptin levels; they correlated negatively with phospholipase A2 levels.
Conclusions
High SIRT1 levels were observed in frail elderly patients and were correlated with decreased physical function. Insulin and adipokine levels might be the link between SIRT1 and frailty, whereas inflammation may not be involved in this process.
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Abbreviations
- SIRT1:
-
silent mating-type information regulation 2 homolog 1
- CR:
-
calorie restriction
- BMI:
-
body mass index
- CRP:
-
C-reactive protein
- IIS:
-
inflammation index score
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Ma, L., Niu, H., Sha, G. et al. Serum SIRT1 is Associated with Frailty and Adipokines in Older Adults. J Nutr Health Aging 23, 246–250 (2019). https://doi.org/10.1007/s12603-018-1149-7
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DOI: https://doi.org/10.1007/s12603-018-1149-7