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Relationship of body composition and C-reactive protein with pulmonary function
Dong-Hyuk Jung1, Jae-Yong Shim, Hong-Yup Ahn
1Department of Family Medicine, Yonsei University College of Medicine, Seoul, Korea.
Respiratory Medicine
|March 20, 2010
Summary
High body fat and systemic inflammation significantly increase the risk of restrictive pulmonary function. This combined effect is a key factor in understanding lung health in adults.
Area of Science:
- Pulmonary Medicine
- Metabolic Health
- Inflammation Research
Background:
- Restrictive pulmonary function is linked to obesity and C-reactive protein (CRP), a marker of systemic inflammation.
- The interplay between body composition, CRP, and lung function remains incompletely understood.
Purpose of the Study:
- To investigate the combined impact of body composition and CRP levels on restrictive pulmonary function.
- To clarify the relationship between obesity, inflammation, and lung capacity.
Main Methods:
- A cross-sectional study analyzed 12,787 adults (ages 20-75).
- Subjects were categorized into four groups based on body fat percentage (obesity vs. non-obesity) and CRP levels (high vs. low inflammation).
- Odds ratios for restrictive pulmonary function were calculated for each group, adjusting for confounding variables.
Main Results:
- In men, obesity and high CRP significantly increased the odds of restrictive pulmonary function (ORs 2.01 and 3.51, respectively).
- In women, the combination of obesity and high CRP also strongly correlated with restrictive pulmonary function (OR 3.32).
- A significant interaction between body fat percentage and CRP was observed in women.
Conclusions:
- The co-occurrence of high fat accumulation and systemic subclinical inflammation is associated with restrictive pulmonary function.
- These findings highlight the critical role of both obesity and inflammation in impairing lung function.
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