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Hydrogen rich saline reduces immune-mediated brain injury in rats with acute carbon monoxide poisoning.
MedLine Citation:
PMID:  23146304     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVES: This experiment was designed to determine whether hydrogen (H(2)) rich saline can ameliorate brain abnormalities in a rat model with acute carbon monoxide (CO) poisoning.
METHODS: Sprague-Dawley male rats were used for CO poisoning and H(2) rich saline treatment. Changes in neurons, microglias, and myelin sheath were observed by electron microscope. Neuron loss was assessed by Nissl staining. Antioxidant capacities were evaluated by studying superoxide dismutase activities and malondialdehyde concentration in the brain and serum. Infiltration of macrophages, expression of immune-associated cytokines (MIP-1-alpha and ICAM-1), and changes in myelin basic protein (MBP) were monitored by immunohistochemical staining and western blotting.
RESULTS: CO-exposed rats showed the increase in neuron loss and the decrease in antioxidant capacities. And H(2) rich saline given after CO poisoning can prevent the alterations mentioned above. CO-mediated oxidative stress caused alterations in MBP, which initiated an adaptive immunological response that led to brain injury. MBP from H(2) rich saline-treated, CO-exposed rats was recognized normally by immunohistochemical staining and western blotting. Electron microscope observation from CO-exposed rats showed an apparent aggregation of microglias. Macrophages from CO-exposed rats were significantly more than those from H(2) rich saline-treated and control rats, and the immunofluorescence observation showed that macrophages were similar to microglias in type. Expression levels of MIP-1-alpha and ICAM-1 increased in the brains of CO-poisoned rats and H(2) rich saline treatment decreased the levels.
DISCUSSION: The results indicate that H(2) rich saline prevents immune-mediated brain injury after CO poisoning.
Wenlan Wang; Ya Li; Jie Ren; Feng Xia; Jinsheng Li; Zuoming Zhang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurological research     Volume:  34     ISSN:  1743-1328     ISO Abbreviation:  Neurol. Res.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7905298     Medline TA:  Neurol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  1007-15     Citation Subset:  IM    
School of Aerospace Medicine, Fourth Military Medical University, Xi'an, China.
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