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Related Experiment Video

Updated: Sep 17, 2025

Use of a Piglet Model for the Study of Anesthetic-induced Developmental Neurotoxicity AIDN: A Translational Neuroscience Approach
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Assessing potential desflurane-induced neurotoxicity using nonhuman primate neural stem cell models.

Cheng Wang1, Leah E Latham1, Shuliang Liu1

  • 1Division of Neurotoxicology, National Center for Toxicological Research/FDA, Jefferson, AR, United States.

Experimental Biology and Medicine (Maywood, N.J.)
|June 30, 2025
PubMed
Summary

General anesthetics like desflurane did not harm neural stem cells but prolonged exposure impaired differentiated neurons. This study highlights desflurane

Keywords:
anestheticsdesflurane,developing neuronsneural differentiationneurotoxicity

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Area of Science:

  • Neuroscience
  • Developmental Neurotoxicity
  • Anesthesiology

Background:

  • General anesthetics (GA), including desflurane, raise safety concerns due to potential neurodevelopmental effects.
  • Neural stem cells (NSCs) are a valuable in vitro model for assessing anesthetic-induced neurotoxicity.
  • Early-life exposure to anesthetics may cause neural cell death and behavioral changes.

Purpose of the Study:

  • To investigate the temporal effects of desflurane exposure on neural stem cell health, proliferation, differentiation, and viability.
  • To evaluate desflurane-induced developmental neurotoxicity using a monkey NSC model.

Main Methods:

  • Harvested NSCs from gestational day 80 monkey hippocampus.
  • Exposed NSCs to clinically relevant desflurane concentrations (5.7%) for short-term (3h) and prolonged (24h) periods.
  • Assessed NSC viability (LDH release), proliferation (Cell Cycle Assay), differentiation, and expression of neural markers (PSA-NCAM) and cytokines.

Main Results:

  • Desflurane exposure did not significantly alter NSC viability or proliferation at short or prolonged durations.
  • Prolonged (24h) desflurane exposure significantly increased LDH release in differentiated neural cells.
  • Desflurane exposure elevated pro-inflammatory cytokines and significantly reduced PSA-NCAM-positive differentiated neurons.

Conclusions:

  • Clinically relevant desflurane concentrations do not induce NSC damage but impair differentiated neurons after prolonged exposure.
  • Desflurane-induced neurotoxicity is linked to the loss of differentiated neurons, potentially mediated by changes in PSA-NCAM.
  • Findings aid in understanding desflurane's effects on the developing brain and optimizing pediatric anesthetic use.