Literature DB >> 3726539

High potassium conductance in astrocyte endfeet.

E A Newman.   

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.

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Year:  1986        PMID： 3726539      PMCID： PMC2483428          DOI： 10.1126/science.3726539

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  16 in total

1.  Müller cell function during spreading depression in frog retina.

Authors:  S Mori; W H Miller; T Tomita
Journal:  Proc Natl Acad Sci U S A       Date:  1976-04       Impact factor: 11.205

2.  Current source-density analysis of the b-wave of frog retina.

Authors:  E A Newman
Journal:  J Neurophysiol       Date:  1980-05       Impact factor: 2.714

3.  Neuron-glia interactions.

Authors:  S S Varon; G G Somjen
Journal:  Neurosci Res Program Bull       Date:  1979-02

4.  Astrocyte-specific protein and neuroglial differentiation. An immunofluorescence study with antibodies to the glial fibrillary acidic protein.

Authors:  A Bignami; D Dahl
Journal:  J Comp Neurol       Date:  1974-01-01       Impact factor: 3.215

5.  Transient changes in the size of the extracellular space in the sensorimotor cortex of cats in relation to stimulus-induced changes in potassium concentration.

Authors:  I Dietzel; U Heinemann; G Hofmeier; H D Lux
Journal:  Exp Brain Res       Date:  1980       Impact factor: 1.972

6.  Analysis of potassium dynamics in mammalian brain tissue.

Authors:  A R Gardner-Medwin
Journal:  J Physiol       Date:  1983-02       Impact factor: 5.182

7.  K+-permeability of the blood-brain barrier, investigated by aid of a K+-sensitive microelectrode.

Authors:  A J Hansen; H Lund-Andersen; C Crone
Journal:  Acta Physiol Scand       Date:  1977-12

8.  Effect of nerve impulses on the membrane potential of glial cells in the central nervous system of amphibia.

Authors:  R K Orkand; J G Nicholls; S W Kuffler
Journal:  J Neurophysiol       Date:  1966-07       Impact factor: 2.714

9.  A further study of the fine structure and membrane properties of neuroglia in the optic nerve of Necturus.

Authors:  H Bracho; P M Orkand; R K Orkand
Journal:  J Neurobiol       Date:  1975-07

10.  Relation of potassium transport to oxidative metabolism in isolated brain capillaries.

Authors:  G W Goldstein
Journal:  J Physiol       Date:  1979-01       Impact factor: 5.182
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  52 in total

1.  Spatial buffering of potassium ions in brain extracellular space.

Authors:  K C Chen; C Nicholson
Journal:  Biophys J       Date:  2000-06       Impact factor: 4.033

Review 2.  Glial K⁺ clearance and cell swelling: key roles for cotransporters and pumps.

Authors:  Nanna Macaulay; Thomas Zeuthen
Journal:  Neurochem Res       Date:  2012-02-26       Impact factor: 3.996

3.  C-erbB2/neu transfection induces gap junctional communication incompetence in glial cells.

Authors:  A Hofer; J C Sáez; C C Chang; J E Trosko; D C Spray; R Dermietzel
Journal:  J Neurosci       Date:  1996-07-15       Impact factor: 6.167

Review 4.  Potassium buffering in the central nervous system.

Authors:  P Kofuji; E A Newman
Journal:  Neuroscience       Date:  2004       Impact factor: 3.590

Review 5.  Astrocytic calcium signaling: the information currency coupling neuronal activity to the cerebral microcirculation.

Authors:  Stephen V Straub; Mark T Nelson
Journal:  Trends Cardiovasc Med       Date:  2007-08       Impact factor: 6.677

Review 6.  The astrocyte odyssey.

Authors:  Doris D Wang; Angélique Bordey
Journal:  Prog Neurobiol       Date:  2008-10-01       Impact factor: 11.685

7.  Comparative morphometry of Bergmann glial (Golgi epithelial) cells. A Golgi study.

Authors:  A Siegel; A Reichenbach; S Hanke; D Senitz; K Brauer; T G Smith
Journal:  Anat Embryol (Berl)       Date:  1991

Review 8.  Functional implications for Kir4.1 channels in glial biology: from K+ buffering to cell differentiation.

Authors:  Michelle L Olsen; Harald Sontheimer
Journal:  J Neurochem       Date:  2008-08-08       Impact factor: 5.372

9.  Perfusion pressure-dependent recovery of cortical spreading depression is independent of tissue oxygenation over a wide physiologic range.

Authors:  Inna Sukhotinsky; Mohammad A Yaseen; Sava Sakadzić; Svetlana Ruvinskaya; John R Sims; David A Boas; Michael A Moskowitz; Cenk Ayata
Journal:  J Cereb Blood Flow Metab       Date:  2010-01-20       Impact factor: 6.200

10.  Tracer permeability of rat cortical blood vessels during regional hypothermia.

Authors:  J Schindelmeiser; M Bergmann; A Lehmenkühler; U Kersting
Journal:  Acta Neuropathol       Date:  1987       Impact factor: 17.088
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