AI Article Synopsis
- * Treatment with oral edaravone, which is known for scavenging free radicals, effectively reduced oxidative stress and improved cognitive function in these mice, also decreasing neuroinflammation and restoring neural stem cells in the hippocampus.
- * The study highlights the importance of oxidative stress and suggests that edaravone could be a promising therapeutic option for addressing cognitive deficits associated with chronic high-altitude hypoxia.
Article Abstract
Chronic hypobaric hypoxia at high altitudes can impair cognitive functions, especially causing deficits in learning and memory, which require therapeutic intervention. Here, we showed that mice subjected to hypobaric hypoxia (simulating an altitude of 5000 m) for one month experienced significant cognitive impairment, accompanied by increased biomarker levels of oxidative stress in the brain and blood. Oral administration of a novel formulation of edaravone, a free radical scavenger approved for the treatment of ischaemic stroke and amyotrophic lateral sclerosis, significantly alleviated oxidative stress and cognitive impairments caused by chronic hypobaric hypoxia. Furthermore, oral edaravone treatment also mitigated neuroinflammation and restored hippocampal neural stem cell exhaustion. Additionally, periostin (Postn) is vital in the cognitive deficits caused by chronic hypobaric hypoxia and may be a molecular target of edaravone. In conclusion, our results suggest that oxidative stress plays a crucial role in the cognitive deficits caused by chronic hypobaric hypoxia and that oral edaravone is a potential medicine for protecting against cognitive deficits caused by chronic hypobaric hypoxia in high-altitude areas.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11450176 | PMC |
| http://dx.doi.org/10.1038/s41398-024-03133-1 | DOI Listing |
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