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Published on: May 12, 2018
Epigenetic Alterations in Anesthesia-Induced Neurotoxicity in the Developing Brain
1Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China.
Insights
Anesthesia exposure during early brain development may cause lasting neurodevelopmental issues through epigenetic changes. Targeting these epigenetic modifications could offer therapeutic benefits for neuroprotection.
Area of Science:
- Neuroscience
- Developmental Biology
- Pharmacology
Background:
- The developing brain is highly susceptible to environmental and pharmacological factors.
- Evidence links anesthesia exposure during critical developmental periods to adverse neurodevelopmental outcomes.
- The precise mechanisms behind anesthesia-induced neurotoxicity remain unclear.
Purpose of the Study:
- To review epigenetic mechanisms involved in anesthesia-induced neurotoxicity.
- To highlight the role of epigenetic dysregulation in developmental neurotoxicity.
- To explore the potential therapeutic value of targeting epigenetic pathways.
Main Methods:
- Literature review focusing on epigenetics and anesthesia.
- Analysis of studies investigating epigenetic modifications.
- Examination of gene expression and functional deficits.
Main Results:
- Epigenetic modifications are implicated in anesthesia-induced long-term changes in gene transcription.
- Anesthesia can lead to functional deficits in learning and behavior via epigenetic pathways.
- Epigenetic dysfunctions play a significant role in anesthesia neurotoxicity.
Conclusions:
- Epigenetics offers a framework for understanding anesthesia-induced neurodevelopmental effects.
- Targeting epigenetic regulators like DNA methyltransferases and histone deacetylases may hold therapeutic potential.
- Epigenetic markers could be crucial for neuroprotection strategies.
Abstract:
Before birth and early in life, the developing brain is particularly sensitive to environmental and pharmacological influences. Increasing experimental evidence suggests that an association exists between exposure to anesthesia during a vulnerable period of brain development and subsequent poor neurodevelopmental outcomes. However, the mechanisms underlying this association are not fully understood. Epigenetics, broadly defined as the regulation of gene expression without alterations of DNA sequence, has become a field of tremendous interest in neuroscience. In recent years, a growing body of literature suggests that anesthesia-induced long-term changes in gene transcription and functional deficits in learning and behavior later in life are mediated via epigenetic modifications. This brief review provides an overview of epigenetic mechanisms and highlights the emerging roles played by epigenetic dysfunctions in the processes of anesthesia-induced neurotoxicity in the developing brain. Epigenetic targeting of DNA methyltransferases and/or histone deacetylases may have some therapeutic value. Epigenetics may lead to the identification of novel markers that contribute toward considerable translational significance in the field of neuroprotection.
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