REVIEW   

Minerva Respiratory Medicine 2022 September;61(3):138-45

DOI: 10.23736/S2784-8477.22.01999-4

Copyright © 2022 EDIZIONI MINERVA MEDICA

language: English

Paraoxonase-1 in stable chronic obstructive pulmonary disease: a systematic review and meta-analysis

Elisabetta ZINELLU ¹, Angelo ZINELLU ², Maria C. PAU ³, Alessandro G. FOIS ^{1, 3}, Sabrina MELLINO ², Arduino A. MANGONI ⁴, Ciriaco CARRU ², Pietro PIRINA ^{1, 3} ✉

¹ Unit of Clinical and Interventional Pulmonology, University Hospital Sassari, Sassari, Italy; ² Department of Biomedical Sciences, University of Sassari, Sassari, Italy; ³ Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy; ⁴ College of Medicine and Public Health, Department of Clinical Pharmacology, Flinders Medical Center, Flinders University, Bedford Park, Australia

INTRODUCTION: Oxidative stress plays a critical pathophysiological role in chronic obstructive pulmonary disease (COPD). An impairment in antioxidant defense systems, which include the enzyme paraoxonase1 (PON-1), have been reported in COPD patients. This systematic review and meta-analysis investigated the association between serum PON1 and COPD.
EVIDENCE ACQUISITION: A systematic search was performed using the following terms and their combination: “paraoxonase-1” or “PON-1” and “chronic obstructive pulmonary disease” or “COPD” in PubMed, Web of Science, Scopus, and Google Scholar, from inception to October 2021. Standardized mean differences (SMDs) of serum PON-1 concentrations between stable COPD patients and non-COPD subjects were calculated.
EVIDENCE SYNTHESIS: Thirteen studies were included in the meta-analysis. Pooled results showed that serum PON-1 concentrations were significantly lower in patients with COPD (SMD=-1.12, 95% CI: -1.72 to -0.53; P<0.001).
CONCLUSIONS: The observed reduction of PON-1 concentrations in COPD patients supports the presence of an impaired antioxidant defense system in this group.

KEY WORDS: Pulmonary disease, chronic obstructive; Oxidative stress; Systematic review