• 1. Department of Respiratory Medicine, Affiliated Hospital of North China University of Science and Technology, Tangshan, Hebei 063000, P. R. China;
  • 2. Department of Endocrinology, Affiliated Hospital of North China University of Science and Technology, Tangshan, Hebei 063000, P. R. China;
GE Yanlei, Email: 495732196@qq.com
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Objective To investigate the correlation and clinical significance of 8-hydroxydeoxyguanosine (8-OHdG) and endothelin-1 (ET-1) levels with cognitive dysfunction in patients with chronic obstructive pulmonary disease (COPD), and provide new idea for the prevention and treatment for cognitive dysfunction in COPD patients.Methods A total of 103 COPD patients, according to the Montreal cognitive assessment scale standard for evaluation, were divided into a cognitive dysfunction group and a cognitive normal group. Serum 8-OHdG and ET-1 levels were compared between the two groups and their correlations with cognitive function were analyzed with the receiver operating characteristic (ROC) curve.Results The levels of serum 8-OHdG and ET-1 in the COPD patients with cognitive impairment were significantly higher than those in the cognitive normal group [8-OHdG: (13.91±9.04) ng/ml vs. (7.28±3.00) ng/ml; ET-1: (95.64±57.66)pg/ml vs. (69.20±7.89)pg/ml] (both P<0.05). The levels of 8-OHdG (OR=22.94, 95%CI 7.06-74.53) and ET-1 (OR=19.76, 95%CI 6.59-59.31) were associated with cognitive impairment in the COPD patients. The areas under ROC curve of serum 8-OHdG and ET-1 levels to predict cognitive dysfunction in the COPD patients were 0.786 (95%CI 0.691-0.881) and 0.790(95%CI 0.695-0.885).Conclusions The serum levels of 8-OHdG and ET-1 are associated with cognitive impairment in COPD patients. The levels of 8-OHdG and ET-1 in serum can predict cognitive impairment with high specificity.

Citation: ZHU Xiaoying, LIU Conghui, GE Yanlei, WANG Hongyang, CHEN Qiancheng, ZHANG Ci, LI Hongli, ZHANG Jiabin, WANG Yuan. The correlation of serum 8-hydroxydeoxyguanosine and endothelin-1 levels with cognitive dysfunction in COPD patients. Chinese Journal of Respiratory and Critical Care Medicine, 2019, 18(1): 10-14. doi: 10.7507/1671-6205.201805068 Copy

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