Ion channel organization of the myelinated fiber.

Abstract:

:The myelinated axon provides a model in which it is possible to examine how various types of ion channels are incorporated into a membrane to form an excitable neuronal process. The available evidence now indicates that mammalian myelinated fibers contain a repertoire of physiologically active membrane molecules including at least four types of ion channels and an electrogenic Na+,K(+)-pump. Physiological properties of myelinated fibers reflect the distribution of these various types of channels and pumps, as well as interactions with myelinating Schwann cells in the PNS or oligodendrocytes in the CNS. A growing body of data also suggests a role for astrocytes and Schwann cells at nodes of Ranvier. This article reviews the current understanding of the ion channel organization of the mammalian myelinated fiber.

journal_name

Trends Neurosci

journal_title

Trends in neurosciences

authors

Black JA,Kocsis JD,Waxman SG

doi

10.1016/0166-2236(90)90068-l

subject

Has Abstract

pub_date

1990-02-01 00:00:00

pages

48-54

issue

2

eissn

0166-2236

issn

1878-108X

pii

0166-2236(90)90068-L

journal_volume

13

pub_type

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