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Biomarkers in sarcopenia: A multifactorial approach.
Francesco Curcio1, Gaetana Ferro1, Claudia Basile1
1Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy.
Experimental Gerontology
|September 17, 2016
Summary
Sarcopenia, the age-related loss of muscle mass, is linked to frailty and disability. Diagnosing sarcopenia requires assessing low muscle mass plus low strength or performance, as it involves multiple complex factors.
Area of Science:
- Gerontology
- Muscle Physiology
- Biomarker Discovery
Background:
- Sarcopenia is the progressive loss of skeletal muscle mass and function with aging.
- It is a significant public health concern, contributing to frailty, disability, and increased mortality.
- Current diagnostic criteria involve low muscle mass combined with reduced muscle strength or physical performance.
Purpose of the Study:
- To explore the multifactorial nature of sarcopenia.
- To highlight the limitations of single biomarker identification for sarcopenia.
- To advocate for a comprehensive biomarker panel for accurate assessment.
Main Methods:
- Review of age-related skeletal muscle changes.
- Analysis of contributing factors including neuromuscular, endocrine, and protein turnover pathways.
- Discussion of diagnostic criteria and biomarker utility.
Main Results:
- Sarcopenia pathogenesis involves complex interactions of multiple factors.
- Age-related muscle loss is not attributable to a single cause.
- Identifying a sole biomarker for sarcopenia is unreliable due to its multifactorial nature.
Conclusions:
- Accurate assessment of sarcopenia requires evaluating multiple pathophysiological pathways.
- A panel of biomarkers is necessary to fully characterize sarcopenia.
- This approach will improve the understanding and management of sarcopenia in the elderly.
