Volume 46, Issue 2 pp. 181-188
Original Article

Plasma protein thiols: an early marker of oxidative stress in asthma and chronic obstructive pulmonary disease

Angelo Zinellu

Corresponding Author

Angelo Zinellu

Department of Biomedical Sciences, University of Sassari, Sassari, Italy

Correspondence to: Dr Angelo Zinellu, Department Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy. Tel.: +39 079229775; fax: +39 079228275; e-mail: [email protected]Search for more papers by this author
Alessandro Giuseppe Fois

Alessandro Giuseppe Fois

Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy

Search for more papers by this author
Salvatore Sotgia

Salvatore Sotgia

Department of Biomedical Sciences, University of Sassari, Sassari, Italy

Search for more papers by this author
Elisabetta Zinellu

Elisabetta Zinellu

Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy

Search for more papers by this author
Fabiana Bifulco

Fabiana Bifulco

Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy

Search for more papers by this author
Gianfranco Pintus

Gianfranco Pintus

Department of Biomedical Sciences, University of Sassari, Sassari, Italy

Search for more papers by this author
Arduino A. Mangoni

Arduino A. Mangoni

Department of Clinical Pharmacology, School of Medicine, Flinders University, Adelaide, SA, Australia

Search for more papers by this author
Ciriaco Carru

Ciriaco Carru

Department of Biomedical Sciences, University of Sassari, Sassari, Italy

Search for more papers by this author
Pietro Pirina

Pietro Pirina

Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy

Search for more papers by this author
First published: 17 December 2015
Citations: 47

Abstract

Chronic obstructive pulmonary disease (COPD) and asthma are both characterized by heterogeneous chronic airway inflammation and obstruction as well as oxidative stress (OS). However, it is unknown whether OS occurs in early disease and how to best assess its presence. Plasma OS markers (TBARS, PSH, taurine, GSH, ergothioneine and paraoxonase 1 activity) and lung function tests were measured in patients with mild stable asthma (n = 24) and mild stable COPD (n = 29) and in age- and sex-matched controls. Forced expiratory volume in 1 s (FEV1) was associated with age both in patients and control groups. By contrast, FEV1 was positively correlated with PSH only in COPD (ρ = 0·49, P = 0·007). In multiple logistic regression analysis, lower PSH was the only OS marker independently associated with increased odds of both asthma (OR = 0·32, 95% CI 0·13–0·78, P = 0·01) and COPD (OR = 0·50, 95% CI 0·26–0·95, P = 0·03). These findings suggest that proteins -SH are a sensitive OS marker in early COPD and asthma.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.