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Updated: Feb 11, 2026
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Measuring Frailty in HIV-infected Individuals. Identification of Frail Patients is the First Step to Amelioration and Reversal of Frailty
Published on: July 24, 2013
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Exploring Genetic Outcomes as Frailty Biomarkers
Vanessa Valdiglesias1,2, María Sánchez-Flores1,3, Diego Marcos-Pérez1,3
1DICOMOSA Group, Department of Psychology, Area of Psychobiology, Universidade da Coruña, Spain.
Summary
Biomarkers for frailty are crucial for early detection. Persistent levels of phosphorylated H2AX, indicating DNA breakage, increase with frailty severity, suggesting its potential as a biomarker.
Area of Science:
- Gerontology and Molecular Biology
- Investigating biological markers for aging and frailty.
Background:
- Frailty is a key indicator of aging, necessitating early detection for intervention.
- Biomarkers offer objective and earlier identification of individuals experiencing frailty.
Purpose of the Study:
- To understand biological features linked to frailty.
- To explore genetic biomarkers for early frailty identification in older adults.
Main Methods:
- Analysis of genetic outcomes (mutagenicity, DNA damage, repair capacity) in frail, prefrail, and nonfrail older adults.
- Evaluation of clinical parameters including nutritional and cognitive status.
- Measurement of persistent phosphorylated H2AX levels as an indicator of DNA breakage.
Main Results:
- No significant association found between mutation rate or primary DNA damage and frailty.
- A non-significant trend of decreased DNA repair capacity with increasing frailty.
- Progressive increase in phosphorylated H2AX levels correlating with frailty severity.
Conclusions:
- Phosphorylated H2AX shows potential as a biomarker for frailty severity.
- Further research is needed to validate findings in diverse populations and standardize clinical use.
- The influence of cognitive impairment on these biomarkers requires further investigation.
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