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Application of Microelectrode Array Approaches to Neurotoxicity Testing and Screening.

Timothy J Shafer1

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Advances in Neurobiology
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PubMed
Summary

Microelectrode arrays (MEAs) offer a newer method for neurotoxicity testing, enabling the screening of numerous chemicals. Addressing current challenges will further enhance MEA utility in assessing chemical impacts on the nervous system.

Keywords:
Developmental neurotoxicityNeurotoxicityScreening

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Area of Science:

  • Neuroscience
  • Toxicology
  • Electrophysiology

Background:

  • Neurotoxicity is the adverse effect of chemicals on the nervous system.
  • Electrophysiological methods have long been used to study neurotoxicity.
  • High-throughput patch-clamp is used in pharmaceutical drug development.

Purpose of the Study:

  • Review the application of microelectrode array (MEA) approaches in neurotoxicity testing.
  • Highlight MEA's role in screening large numbers of chemicals for neurotoxicity and developmental neurotoxicity.
  • Identify challenges to improve MEA utility in toxicity testing.

Main Methods:

  • Utilizing microelectrode array (MEA) recordings to study neural network electrophysiology.
  • Applying MEA approaches for high-throughput screening of chemicals.
  • Reviewing existing literature on MEA applications in neurotoxicity.

Main Results:

  • MEAs have been rapidly adopted for neurotoxicity testing since their commercial availability in the early 2000s.
  • MEA approaches are particularly useful for screening large chemical libraries.
  • The chapter reviews the application of MEAs in assessing neurotoxicity and developmental neurotoxicity.

Conclusions:

  • Microelectrode array recordings represent a valuable and increasingly adopted approach for neurotoxicity assessment.
  • Further addressing identified challenges will enhance the effectiveness of MEAs in toxicity screening.
  • MEAs show significant promise for the efficient evaluation of chemical safety on neural systems.