IL-33 in patients with periodontitis and chronic obstructive pulmonary disease
Mei Lin1, Xiao-Li Gao1, Wei Li1
1Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.
Objective:
A link between periodontitis and chronic obstructive pulmonary disease (COPD) has been identified, and interleukin-33 (IL-33) may play an important role in the common inflammatory mechanisms of these diseases. This study analyzed the associations of the serum IL-33 level with the occurrence and severity of periodontitis and COPD.
Methods:
A total of 161 participants were divided into four groups: healthy volunteers, periodontitis patients, COPD patients, and patients with both COPD and periodontitis. Associations between serum IL-33 levels were measured by enzyme-linked immunosorbent assay, and clinical factors as well as the risks and severity of periodontitis and COPD were analyzed.
Results:
Serum IL-33 levels were lower in all patient groups than in healthy controls. A trend toward lower IL-33 levels was observed among patients with both diseases compared with patients with either disease alone. The serum IL-33 level was also inversely associated with the severity of periodontitis and COPD. The serum IL-33 level was negatively associated with risks of periodontitis and COPD, indicating that IL-33 is likely involved in the pathophysiologic mechanism of the relationship between COPD and periodontitis.
Conclusion:
This study advances our understanding of the association between COPD and periodontitis and provides new bases for COPD prevention and treatment.
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