Related Experiment Videos
Inflammatory markers and physical performance in older persons: the InCHIANTI study
Matteo Cesari1, Brenda W J H Penninx, Marco Pahor
1Sticht Center on Aging, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. mcesari@wfubmc.edu
Summary
Chronic inflammation, indicated by high interleukin-6 (IL-6), C-reactive protein (CRP), and IL-1 receptor antagonist (IL-1RA) levels, is linked to reduced physical function and muscle strength in older adults. These markers may aid in screening and intervention strategies.
Area of Science:
- Gerontology and Geriatric Medicine
- Immunology and Inflammation Research
- Biomarkers and Health Outcomes
Background:
- Chronic inflammation is hypothesized to contribute to physical function decline in aging populations.
- Understanding the relationship between specific inflammatory markers and physical performance is crucial for geriatric health.
Purpose of the Study:
- To investigate the association between key inflammatory markers and physical performance in older adults.
- To evaluate the correlation between inflammation and muscle strength (hand-grip strength) in the elderly.
Main Methods:
- Prospective population-based study (InCHIANTI) involving 1020 participants aged 65+.
- Physical performance assessed via walking speed, chair-stand, and balance tests; muscle strength measured by hand-grip.
- Serum levels of C-reactive protein (CRP), interleukin-6 (IL-6), and IL-1 receptor antagonist (IL-1RA) analyzed using linear regression.
Main Results:
- Elevated levels of IL-6, CRP, and IL-1RA were significantly correlated with poorer physical performance.
- High CRP and IL-6 levels were associated with reduced hand-grip strength.
- Adjusted analyses confirmed strong associations between high IL-6, IL-1RA, and worse physical performance, and high CRP, IL-6, and low muscle strength.
Conclusions:
- Inflammation, specifically high IL-6, CRP, and IL-1RA, is significantly linked to diminished physical function and muscle strength in older individuals.
- These inflammatory markers demonstrate biological validity for assessing physical performance.
- Inflammatory marker assessment could serve as a valuable screening tool and potential therapeutic target for age-related functional decline.