Abstract | INTRODUCTION:
Acute lung injury (ALI) is generally caused by oxidative damages and pulmonary overinflammations. Hyperbaric oxygen preconditioning (HBO2-PC) has been proven protective against oxidative-stress-related injuries. In this study, we investigated the effect of HBO2-PC on lipopolysaccharide (LPS)-induced ALI in rats. METHODS: RESULTS: HBO2-PC significantly alleviated LPS-induced ALI, lowered the lung injury scores, reduced lung water content, and reduced H2O2, MDA levels as well as MPO activity, while simultaneously improving the arterial partial oxygen pressure (PaO2) and SOD activity. Furthermore, HBO2-PC inhibited the nuclear translocation of NF-κB p65 while enhancing the nuclear translocation of Nrf2, thus upregulating HO-1 and NQO1. CONCLUSIONS: Our results suggest that HBO2-PC was potentially protective for LPS-induced ALI lungs in rats, with a presumed mechanism that suppressed NF-κB while activating Nrf2. We propose that HBO2-PC should be considered a potential therapeutic strategy against ALI in rats.
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Authors | Chongfeng Bai, Tao Li, Yi Chen, Tongyi Xu, Xiaohong Wang, Jinjian Yu, Xuan Liu, Qing Sun |
Journal | Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc
(Undersea Hyperb Med)
2018 May-Jun
Vol. 45
Issue 3
Pg. 323-333
ISSN: 1066-2936 [Print] United States |
PMID | 30028919
(Publication Type: Journal Article)
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Copyright | Copyright© Undersea and Hyperbaric Medical Society. |
Chemical References |
- Il6 protein, rat
- Interleukin-1beta
- Interleukin-6
- Lipopolysaccharides
- NF-E2-Related Factor 2
- NF-kappa B
- Nfe2l2 protein, rat
- Transcription Factor RelA
- Tumor Necrosis Factor-alpha
- Malondialdehyde
- Hydrogen Peroxide
- Heme Oxygenase-1
- Superoxide Dismutase
- NAD(P)H Dehydrogenase (Quinone)
- NQO1 protein, rat
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Topics |
- Acute Lung Injury
(blood, etiology, prevention & control)
- Animals
- Heme Oxygenase-1
(analysis)
- Hydrogen Peroxide
(analysis)
- Hyperbaric Oxygenation
- Interleukin-1beta
(analysis)
- Interleukin-6
(analysis)
- Lipopolysaccharides
- Male
- Malondialdehyde
(analysis)
- NAD(P)H Dehydrogenase (Quinone)
(analysis)
- NF-E2-Related Factor 2
(analysis)
- NF-kappa B
(analysis)
- Random Allocation
- Rats
- Rats, Sprague-Dawley
- Superoxide Dismutase
(analysis)
- Transcription Factor RelA
(analysis)
- Tumor Necrosis Factor-alpha
(analysis)
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