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CJAP ›› 2018, Vol. 34 ›› Issue (1): 61-64.doi: 10.12047/j.cjap.5484.2018.016

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Improvement of hydrogen on liver oxidative stress injury in chronic intermittent hypoxia rats

YANG Sheng-chang1, CHEN Ling-ling2, FU Tian1, LI Wen-ya1, JI En-sheng1   

  1. 1. Department of Physiology, Hebei University of Chinese Medicine, Shijiazhuang 050200;
    2. Department of Physiology, Hebei Medical University, Shijiazhuang 050017, China
  • Received:2016-11-04 Revised:2017-06-21 Online:2018-01-28 Published:2018-06-19
  • Supported by:
    河北省教育厅高等学校科学技术重点研究项目资助(ZD2014043);河北省高等学校自然科学研究青年基金项目(QN2016166)

Abstract: Objective: To explore the effects of hydrogen on liver injury in chronic intermittent hypoxia rats and the related oxidative stress mechanism.Methods: Twenty-four male adult SD rats were randomly divided into 3 groups(n=8):the normoxia group (Norm), the chronic intermittent hypoxia group (CIH), the chronic intermittent hypoxia and hydrogen group (H2 + CIH). Rats in Norm group were exposed in air, those in the other 2 groups suffered from chronic intermittent hypoxia conditions for 5 weeks. Before the CIH treatment, rats in H2+CIH group inhaled hydrogen gas at 67% concentration for 1 hour. The serum biochemical indicators of oxidative stress, pro-inflammatory cytokine, liver enzyme and blood lipid were inspected after five weeks treatment, the pathological changes of liver tissue were also observed in the transmission electron microscope.Results: Compared with Norm group, the microstructure of liver cells was severely injured, and the serum levels of glutamic-pyruvic transaminase(ALT),glutamic-oxalacetic transaminase (AST) were significantly higher in CIH group (P<0.05); the serum level of 8-hydroxy-2 deoxyguanosine(8-OHdG) and interleukin-6(IL-6) was significantly higher, the serum level of superoxide dismutase (SOD) was significantly lower. Compared with CIH group, the pathology of liver microstructure were significantly improved and the serum levels of ALT, AST were significantly lower in H2+CIH group (P<0.05); the serum levels of 8-OHdG and IL-6 were significantly lower, the serum level of SOD was significantly higher. Compared with Norm group, the serum level of IL-1 was higher, the serum level of TC, TG, and low density lipoprotein(LDL) were lower, but there was no statistical difference with those in CIH group. There was no statistical difference in the serum level of high density lipoprotein (HDL)among the three groups.Conclusion: Pre-treatment with hydrogen could improve the liver injury caused by chronic intermittent hypoxia, and reducing oxidative stress level for protecting the liver cells damage.

Key words: hydrogen, chronic intermittent hypoxia, liver, oxidative stress, rat

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