• Second Department of Respiratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China;
FanXianming, Email: fxm129@163.com
Export PDF Favorites Scan Get Citation

Objective To detect the level of oxidative stress markers in serum, including malondialdehyde (MDA), protein carbonyls (PC), 8-hydroxy-2'-deoxyguanosine (8-OHdG) and total antioxidant capacity (TAC), in patients with stable chronic obstructive pulmonary disease (COPD), and explore the impacts of oxidant/antioxidant imbalance in pathogenesis of COPD. Methods Two hundred stable COPD patients (the COPD group) and 100 healthy individuals (the control group) were recruited in the study. The concentrations of MDA, PC, 8-OHdG and TAC in serum were detected. Pulmonary function test was performed and the general informations for each subjects were collected. The COPD patients were divided into a smoking subgroup and a non-smoking subgroup, or divided into a mild-moderate airflow limitation subgroup and a severe-extremely severe airflow limitation subgroup. Results The levels of serum MDA, PC and 8-OHdG in the COPD group were significantly higher than those in the control group (all P < 0.01), but the level of serum TAC was significantly lower than that in the control group (P < 0.01). In the COPD patients, the levels of PC and 8-OHdG in the smoking subgroup were significantly higher than those in the non-smoking subgroup (both P < 0.05). The level of PC in the severe-extremely severe airflow limitation subgroup was significantly higher when compared with the mild-moderate airflow limitation subgroup (P < 0.01). Multiple linear regression analysis showed that the levels of PC and 8-OHdG were negatively related with FEV1% pred in the COPD patients, and the PC had greater impacts than 8-OHdG (β=-0.230, -0.219, P < 0.01). Conclusion Smoking can induce the abnormal increase of PC and 8-OHdG in serum which are negatively related with FEV1% pred in COPD patients, which suggests that oxidative stress might play an important role in pathogenesis of COPD.

Citation: JiangXuelian, ZhongPing, HuangChengliang, MengYuanzhu, HeFang, FanXianming. Expression and Clinical Significance of Oxidative Stress Markers in Serum of Patients with Stable Chronic Obstructive Pulmonary Disease. Chinese Journal of Respiratory and Critical Care Medicine, 2016, 15(6): 542-547. doi: 10.7507/1671-6205.2016125 Copy

  • Previous Article

    Cytologic Profile of Induced Sputum and Its Relationship with Treatment Response in Patients with Chronic Obstructive Pulmonary Disease
  • Next Article

    Analysis on the Causes of Death of Patients with Asthma-Chronic Obstructive Pulmonary Disease Overlap Syndrome