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Patch-Clamp Recording from Myelinated Central Axons

  • Maarten H. P. Kole
  • Marko A. Popovic
Protocol
Part of the Neuromethods book series (NM, volume 113)

Abstract

Axons perform the main fundamental electrical operations of neurons. Emerging near the soma, axons integrate synaptic potentials, convert these into action potentials, and conduct the output signal to the presynaptic terminals. With the establishment of patch-clamp recording techniques in brain slices in combination with high-resolution microscopy, it has now become possible to visually target patch-clamp electrodes to various domains of the axon. This chapter provides an overview of the methodology for obtaining patch-clamp recordings from axons, with a focus on their unmyelinated regions, including the axon initial segment and axonal cut endings. Axonal patch-clamp recordings are a prerequisite for the study of the biophysics and diversity of axonal voltage-gated ion channels; in particular, high-temporal resolution, low-noise voltage recordings offer detailed insights into the fast computational properties of central nervous system axons.

Key words

Axon Myelin Bleb Voltage clamp Action potential 

Notes

Acknowledgments

Maarten H.P. Kole is grantee of an ERC Starting Grant (FP7 framework, Grant #261114) and National MS Society Research Grant (RG 4924A1/1). The authors are thankful to Stefan Hallerman and Charles Cohen for critical reading and valuable comments to the manuscript and Sharon de Vries for support in the preparation of the figures.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Maarten H. P. Kole
    • 1
    • 2
  • Marko A. Popovic
    • 1
  1. 1.Department of Axonal Signaling, Royal Netherlands Academy of Arts and SciencesNetherlands Institute for NeuroscienceAmsterdamThe Netherlands
  2. 2.Department of Cell Biology, Faculty of ScienceUtrecht UniversityUtrechtThe Netherlands

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