Effect of hydrogen on mitochondrial function in brain tissues of mice with sepsis-associated encepha-lopathy
10.3760∕cma.j.issn.0254-1416.2019.10.020
- VernacularTitle:氢对脓毒症相关性脑病小鼠脑组织线粒体功能的影响
- Author:
Keliang XIE
1
;
Yaoqi WANG
;
Yi JIANG
;
Xing MAO
;
Hongguang CHEN
;
Yang ZHANG
;
Yonghao YU
Author Information
1. 天津医科大学总医院麻醉科 天津市麻醉学研究所 300052
- Keywords:
Hydrogen;
Sepsis;
Brain;
Mitochondria
- From:
Chinese Journal of Anesthesiology
2019;39(10):1228-1232
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of hydrogen on the mitochondrial function in brain tis-sues of mice with sepsis-associated encephalopathy(SAE).Methods Two hundred and sixty-eight healthy male C57 mice,aged 6 weeks,weighing 20-25 g,were divided into 4 groups(n＝67 each)using a ran-dom number table method: sham operation group(group SH),sham operation plus hydrogen gas group(group SH+H2),group SAE,and SAE plus hydrogen gas group(group SAE+H2).Sepsis was produced by cecal ligation and puncture in anesthetized mice.The mice in group SH+H2 and group SAE+H2 inhaled 2％hydrogen gas for 1 h starting from 1 and 6 h after operation,respectively.The postoperative 7-day sur-vival rate was recorded.Brain tissues were obtained at 24 h after operation to count the normal neurons in hippocampal CA1 region.At 6,12 and 24 h after operation,hippocampal mitochondria were isolated for determination of mitochondrial membrane potential(MMP)by fluorescence spectrophotometry and ATP con-tent by a bioluminescence assay.Y-maze(spontaneous alternation)test was performed at days 3,5 and 7 after operation.Results Compared with group SH,the 7-day survival rate was significantly decreased,the number of normal neurons in hippocampal CA1 region,MMP,mitochondrial ATP content and sponta-neous alternation percentage in Y-maze test were significantly decreased in group SAE and group SAE+H2(P＜0.05).Compared with group SAE,the 7-day survival rate,the number of normal neurons in hipp-ocampal CA1 region,MMP,mitochondrial ATP content and spontaneous alternation percentage in Y-maze test were significantly increased in group SAE+H2(P＜0.05).Conclusion The mechanism by which hy-drogen reduces SAE is probably associated with improving mitochondrial function in brain tissues of mice.
