[Mexidol corrects model post-reanimation changes in cerebral lipid metabolism]

Area of Science:

• Neuroscience
• Biochemistry
• Pharmacology

Background:

• Clinical death and subsequent reperfusion significantly alter brain lipid metabolism.
• Understanding these alterations is crucial for developing neuroprotective strategies.
• Mexidol is a potential therapeutic agent for mitigating reperfusion injury.

Purpose of the Study:

• To investigate the effects of mexidol on the lipid spectrum of rat brain tissues during the post-reanimation period.
• To evaluate mexidol's neuroprotective potential by analyzing changes in lipid components of cerebral cell membranes.

Main Methods:

• Clinical death was induced in rats via cardiovascular fascicle ligation.
• The same model was reproduced with concurrent mexidol administration.
• Lipid spectrum analysis was performed at various stages of the post-reanimation period.

Main Results:

• Mexidol administration led to an increase in phosphatidylserine levels.
• It normalized the relative content of phosphatidylethanolamine and cholesterol.
• Mexidol stabilized phosphatidylcholine, sphingomyelin, lysophosphatidylethanolamine, and free fatty acids, and prevented lysophosphatidylserine accumulation.

Conclusions:

• Mexidol promotes protective and adaptive reactions in cerebral cell membrane lipids during early reperfusion.
• It prevents irreversible changes in cerebral phospholipid metabolism in the late post-reanimation phase.
• Mexidol demonstrates significant neuroprotective effects on lipid metabolism following cardiac arrest and resuscitation.