期刊
FOOD AND CHEMICAL TOXICOLOGY
卷 61, 期 -, 页码 160-163出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fct.2013.05.016
关键词
Sarcoidosis; Idiopathic pulmonary fibrosis; Oxidative stress; Isoprostane
Objective and design: Sarcoidosis and idiopathic pulmonary fibrosis (IPF) are both associated with deregulated inflammatory mechanisms partially triggered by aggravated oxidative stress. 8-Isoprostane has been proposed as a reliable marker of oxidative stress, linked to several pulmonary diseases. We aimed to explore differences in 8-isoprostane levels in IPF and sarcoidosis patients, and controls. Methods: We included 16 IPF and 55 sarcoidosis patients, as well as 17 controls in the study. 8-Isoprostane levels were measured in serum and in bronchoalveolar lavage (BAL). Results: Serum 8-isoprostane levels were increased in all patient groups vs controls (p < 0.001). The systemic 8-isoprostane concentrations were higher in sarcoidosis patients as compared to IPF subjects and controls (p = 0.017 and p < 0.001, respectively). IPF patients exhibited increased serum 8-isoprostane levels when compared to controls (p < 0.001). Sarcoidosis patients presented significantly increased 8-isoprostane BAL levels when compared to IPF patients (p = 0.002). Conclusion: Our data indicate that the level of oxidative stress, as reflected by 8-isoprostane concentrations, is enhanced in patients with sarcoidosis, and to a lesser extent, in IPF patients when compared to controls, suggesting a potential implication of redox imbalance in both diseases. (C) 2013 Elsevier Ltd. All rights reserved.
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