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Adaptation of Microelectrode Array Technology for the Study of Anesthesia-induced Neurotoxicity in the Intact Piglet Brain
Published on: May 12, 2018
General anesthetics and long-term neurotoxicity
1Department of Anesthesiology, University of Wisconsin School of Medicine, B6/319 Clinical Science Center, 600 Highland Ave., Madison, WI, USA. mperouansky@wisc.edu
General anesthetics can cause long-lasting and profound effects on the brain, particularly in neonates and the aging brain. Anesthetic neurotoxicity may lead to apoptosis, cognitive dysfunction, and accelerated neurodegeneration.
Area of Science:
- Neuroscience
- Anesthesiology
- Toxicology
Background:
- General anesthetics' mechanisms of action are not fully understood.
- Anesthesia involves multiple components acting on various molecular and cellular targets.
- Anesthetics are present at high concentrations and interact with numerous cellular structures due to lipid solubility.
Purpose of the Study:
- To review evidence for anesthetic toxicity in the central nervous system (CNS).
- To explore age-specific neurotoxic effects of general anesthetics.
Main Methods:
- Review of existing literature on anesthetic effects on the CNS.
- Focus on molecular, cellular, and anatomical levels of anesthetic interaction.
- Examination of age-related neurotoxicity in neonates and the aging brain.
Main Results:
- Anesthetics can induce apoptosis in the developing CNS (neonates).
- Subtle cognitive dysfunction and accelerated neurodegenerative processes may occur in the aging CNS.
- Anesthetics affect gene expression and protein synthesis across all ages.
Conclusions:
- General anesthetics have more profound and lasting effects on the brain than previously recognized.
- Anesthetic neurotoxicity is a significant concern, especially at the extremes of age.
- Further research is needed to fully elucidate the long-term consequences of anesthetic exposure.
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