Effects of hydrogen-rich saline on early acute kidney injury in severely burned rats by suppressing oxidative stress induced apoptosis and inflammation

Journal of Translational Medicine

Research

Yun-Yun Jin¹  Chuan-Gang You¹  Xin-Gang Wang¹  Song-Xue Guo¹  Chun-Mao Han¹  Xin-Lei Hu²  Quan Fang³ 

[1] Department of Burn, Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, 310009, Hangzhou, Zhejiang, China;Department of Orthopedic, Binjiang Branch, Second Affiliated Hospital, School of Medicine, Zhejiang University, 1511 Jianghong Road, 31000, Hangzhou, Zhejiang, China;Department of Plastic Surgery, Binjiang Branch, Second Affiliated Hospital, School of Medicine, Zhejiang University, 1511 Jianghong Road, 310000, Hangzhou, Zhejiang, China;

关键词: Burn insults;    Acute kidney injury;    Hydrogen;    Reactive oxygen species;    Inflammation;    Apoptosis;   

DOI  :  10.1186/s12967-015-0548-3

 received in 2015-03-06, accepted in 2015-05-26,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundEarly acute kidney injury (AKI) in severely burned patients predicts a high mortality that is multi-factorial. Hydrogen has been reported to alleviate organ injury via selective quenching of reactive oxygen species. This study investigated the potential protective effects of hydrogen against severe burn-induced early AKI in rats.MethodsSevere burn were induced via immersing the shaved back of rats into a 100°C bath for 15 s. Fifty-six Sprague–Dawley rats were randomly divided into Sham, Burn + saline, and Burn + hydrogen-rich saline (HS) groups, and renal function and the apoptotic index were measured. Kidney histopathology and immunofluorescence staining, quantitative real-time PCR, ELISA and western blotting were performed on the sera or renal tissues of burned rats to explore the underlying effects and mechanisms at varying time points post burn.ResultsRenal function and tubular apoptosis were improved by HS treatment. In addition, the oxidation–reduction potential and malondialdehyde levels were markedly reduced with HS treatment, whereas endogenous antioxidant enzyme activities were significantly increased. HS also decreased the myeloperoxidase levels and influenced the release of inflammatory mediators in the sera and renal tissues of the burned rats. The regulatory effects of HS included the inhibition of p38, JNK, ERK and NF-κB activation, and an increase in Akt phosphorylation.ConclusionHydrogen can attenuate severe burn-induced early AKI; the mechanisms of protection include the inhibition of oxidative stress induced apoptosis and inflammation, which may be mediated by regulation of the MAPKs, Akt and NF-κB signalling pathways.

【 授权许可】

CC BY   
© Guo et al. 2015