Serum 8-Hydroxy-2'-deoxyguanosine Predicts Severity and Prognosis of Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease.

Abstract

BACKGROUND:

Oxidative stress is involved in the pathogenesis of chronic obstructive pulmonary disease (COPD). 8-Hydroxy-2'-deoxyguanosine (8-OHdG) is recognized as a biomarker of oxidative stress and is implicated in several pulmonary diseases. Nonetheless, the role of 8-OHdG remains unclear in COPD patients. This research aimed to evaluate the correlations between serum 8-OHdG on admission and the severity and prognosis of hospitalized COPD patients with acute exacerbation.

METHODS:

A total of 150 COPD hospitalized patients and 150 healthy individuals were recruited. Serum 8-OHdG was measured by ELISA and the length of hospital stay was calculated. The number of acute exacerbations of COPD was tracked within 1 year after this hospitalization.

RESULTS:

The levels of serum 8-OHdG were elevated in COPD patients compared with the control group. Serum 8-OHdG was gradually elevated with decreased pulmonary function in COPD patients. Furthermore, Pearson linear association found that the levels of serum 8-OHdG were inversely correlated with pulmonary function and positively correlated with inflammatory cytokines in COPD patients. In addition, logistic regression analysis revealed that serum 8-OHdG elevation was a risk factor for pulmonary function decline in COPD patients. The length of hospital stay was tracked at this time. Higher serum 8-OHdG on admission increased the length of hospital stay among COPD patients.

CONCLUSION:

Serum 8-OHdG on admission is positively correlated with the severity and adverse prognosis among COPD patients, suggesting that 8-OHdG may be involved in the pathogenesis of COPD. Serum 8-OHdG may be a biomarker to predict the progression of COPD.

• Authors: Peng Cao, Chen Zhang, Dong-Xu Hua, Meng-Die Li, Bian-Bian Lv, Lin Fu, Hui Zhao
• Journal: Lung (Lung) Vol. 200 Issue 1 Pg. 31-39 (02 2022) ISSN: 1432-1750 [Electronic] United States
• PMID: 34982215 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Chemical References

• 8-Hydroxy-2'-Deoxyguanosine

Topics

• 8-Hydroxy-2'-Deoxyguanosine
• Disease Progression
• Humans
• Lung
• Oxidative Stress
• Prognosis
• Pulmonary Disease, Chronic Obstructive