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PMID: 3726539 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

High potassium conductance in astrocyte endfeet.

Science (New York, N.Y.) ·Vol. 233 ·No. 4762 ·1986-07-25 ·Pages 453-4

Newman EA

Abstract

The distribution of potassium conductance over the surface of freshly dissociated salamander astrocytes was determined by monitoring cell depolarizations evoked by focal increases in the extracellular potassium concentration. The specific potassium conductance of the endfoot processes of these cells was approximately tenfold higher than the conductance of other cell regions. This dramatically nonuniform conductance distribution may play an important role in the regulation of extracellular potassium levels by glia in the brain.

MeSH Terms

Animals Astrocytes/physiology Extracellular Space/physiology Membrane Potentials Potassium/physiology Urodela

Chemicals

Potassium

Authors & Affiliations

1 authors, click to expand affiliations / ORCID

Newman E A

References (16)

16 references, click to expand

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Article Info

Journal

Science (New York, N.Y.)

Abbr.

Science

ISSN

0036-8075

DOI

10.1126/science.3726539

Published

1986-07-25

Pages

453-4

Language

English

Region

United States

NLM ID

0404511

PMCID

PMC2483428

Subset

Grants

NEI NIH HHS · R01 EY004077 · United States

NEI NIH HHS · R01 EY004077-19 · United States

NEI NIH HHS · EY 04077 · United States

External Links

PubMed source DOI: 10.1126/science.3726539 PMC Full Text View journal details

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