PMID- 25810882 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150326 LR - 20200930 IS - 2008-3866 (Print) IS - 2008-3874 (Electronic) IS - 2008-3866 (Linking) VI - 18 IP - 1 DP - 2015 Jan TI - Time course changes of oxidative stress and inflammation in hyperoxia-induced acute lung injury in rats. PG - 98-103 AB - OBJECTIVES: Therapies with high levels of oxygen are commonly used in the management of critical care. However, prolonged exposure to hyperoxia can cause acute lung injury. Although oxidative stress and inflammation are purported to play an important role in the pathogenesis of acute lung injury, the exact mechanisms are still less known in the hyperoxic acute lung injury (HALI). MATERIALS AND METHODS: In this study, we investigated the time course changes of oxidative stress and inflammation in lung tissues of rats exposed to >95% oxygen for 12-60 hr. RESULTS: We found that at 12 hr after hyperoxia challenge, the activities of superoxide dismutase and glutathione peroxidase were significantly reduced with remarkably increased lipid peroxidation. At 12 hr, NF-kappaB p65 expression was also upregulated, but Ikappa-Balpha expression showed a remarkable decline. Significant production of inflammatory mediators, e.g, interleukin-1beta, occurred 24 hr after hyperoxia exposure. In addition, the expression of intracellular adhesion molecule 1 expression and the activity of myeloperoxidase were significantly increased at 24 hr with a peak at 48 hr. CONCLUSION: Our data support that hyperoxia-induced oxidative damage and NF-kappaB pathway activation implicate in the early phase of HALI pathogenesis. FAU - Yu, Shouli AU - Yu S AD - Department of quality management, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai City, Shandong Province, China. FAU - Shi, Min AU - Shi M AD - Department of Nanlou, Respiratory Disease, Chinese PLA General Hospital, Beijing, China. FAU - Liu, Changting AU - Liu C AD - Department of Nanlou, Respiratory Disease, Chinese PLA General Hospital, Beijing, China. FAU - Liu, Qinghui AU - Liu Q AD - Department of Nanlou, Respiratory Disease, Chinese PLA General Hospital, Beijing, China. FAU - Guo, Jun AU - Guo J AD - Department of Nanlou, Respiratory Disease, Chinese PLA General Hospital, Beijing, China. FAU - Yu, Senyang AU - Yu S AD - Department of Nanlou, Respiratory Disease, Chinese PLA General Hospital, Beijing, China. FAU - Jiang, Tingshu AU - Jiang T AD - Respiratory Department, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai City, Shandong Province, China. LA - eng PT - Journal Article PT - Retracted Publication PL - Iran TA - Iran J Basic Med Sci JT - Iranian journal of basic medical sciences JID - 101517966 RIN - Iran J Basic Med Sci. 2019 Oct;22(10):1225. PMID: 31998467 PMC - PMC4366750 OTO - NOTNLM OT - Acute lung injury OT - Hyperoxia OT - Inflammation OT - Oxidative stress EDAT- 2015/03/27 06:00 MHDA- 2015/03/27 06:01 PMCR- 2015/01/01 CRDT- 2015/03/27 06:00 PHST- 2014/01/28 00:00 [received] PHST- 2014/05/25 00:00 [accepted] PHST- 2015/03/27 06:00 [entrez] PHST- 2015/03/27 06:00 [pubmed] PHST- 2015/03/27 06:01 [medline] PHST- 2015/01/01 00:00 [pmc-release] AID - IJBMS-18-98 [pii] PST - ppublish SO - Iran J Basic Med Sci. 2015 Jan;18(1):98-103.