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Vascular endothelial dysfunction may be an early predictor of physical frailty and sarcopenia: A meta-analysis of available data from observational studies

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  • Anjalee Thanuja Amarasekera
  • Dennis Chang
  • Peter Schwarz
  • Timothy C Tan
Vis graf over relationer

BACKGROUND: Physical frailty and sarcopenia (PF & S) are major public health problems in the older population and promising predictors of adverse cardiovascular outcomes. However, the underlying mechanisms linking physical frailty, sarcopenia and adverse cardiovascular outcomes are not well defined. We recently published a systematic review which highlighted early-stage vascular endothelial dysfunction (VED) as one of the potential underlying mechanisms of physical frailty and the role of inflammation in modulating this association.

OBJECTIVE AND METHOD: A meta-analysis was performed to estimate the pooled effect size of studies examining the relationship between VED and PF & S.

RESULTS: Out of 18 cross-sectional studies selected for the original review, 13 studies were excluded due to lack of available data for pooled analysis. The five remaining studies had a total of 6616 participants, of which the pooled sample size of the frail or sarcopenic cohort was 607 and robust or pre-frail or non-sarcopenic cohort was 6009. Mean age of the participants ranging from 64 to 80 years or over. In this analysis, high heterogeneity was observed among studies (99.35% of the variation between studies was due to heterogeneity). Parameters used to assess both PF & S and VED were very different across the studies.

CONCLUSION: The absence of a standardized and valid operational definition of frailty and sarcopenia is a principal limiting factors for frailty research and this is clearly reflected in our study findings. This limits the ability to interpret and define the effects of vascular endothelial dysfunction on these different parameters of frailty and sarcopenia. Similarly, assessment of vascular endothelial dysfunction was very heterogeneous with different parameters utilized across these studies.

TidsskriftExperimental Gerontology
Sider (fra-til)111260
StatusUdgivet - jun. 2021

Bibliografisk note

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