Literature DB >> 1295673

K+ ion regulation in retina.

A Reichenbach1, A Henke, W Eberhardt, W Reichelt, D Dettmer.   

Abstract

During onset and offset of illumination, considerable changes in extracellular K+ concentration ([K+]c) occur within particular retinal layers. There are two ways in which glial cells may control [K+]c: (1) by space-independent processes, for example, by K+ uptake due to the Na(+)-K+ ATPase, and (2) by space-dependent processes, that is, by spatial buffering currents flowing through K+ channels. Rabbit retinal Müller (glial) cells were studied for expression of mechanisms supporting both kinds of processes. This review demonstrates that rabbit Müller cells have Na-K pumps whose distribution and properties are highly adapted to meet the needs of efficient K+ clearance. Furthermore, spatial buffering currents through specialized K+ channels of Müller cells greatly accelerate retinal K+ clearance during and after stimulation.

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Year:  1992        PMID： 1295673     DOI： 10.1139/y92-267

Source DB:  PubMed          Journal:  Can J Physiol Pharmacol        ISSN： 0008-4212            Impact factor:   2.273


  9 in total

Review 1.  Potassium buffering in the central nervous system.

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

2.  Proline mediates metabolic communication between retinal pigment epithelial cells and the retina.

Authors:  Michelle Yam; Abbi L Engel; Yekai Wang; Siyan Zhu; Allison Hauer; Rui Zhang; Daniel Lohner; Jiancheng Huang; Marlee Dinterman; Chen Zhao; Jennifer R Chao; Jianhai Du
Journal:  J Biol Chem       Date:  2019-05-19       Impact factor: 5.157

3.  Genetic inactivation of an inwardly rectifying potassium channel (Kir4.1 subunit) in mice: phenotypic impact in retina.

Authors:  P Kofuji; P Ceelen; K R Zahs; L W Surbeck; H A Lester; E A Newman
Journal:  J Neurosci       Date:  2000-08-01       Impact factor: 6.167

4.  A tetraethylammonium-insensitive inward rectifier K+ channel in Müller cells of the turtle (Pseudemys scripta elegans) retina.

Authors:  A C Le Dain; P J Anderton; D K Martin; T J Millar
Journal:  J Membr Biol       Date:  1994-09       Impact factor: 1.843

5.  Aquaporin-4 water channel protein in the rat retina and optic nerve: polarized expression in Müller cells and fibrous astrocytes.

Authors:  E A Nagelhus; M L Veruki; R Torp; F M Haug; J H Laake; S Nielsen; P Agre; O P Ottersen
Journal:  J Neurosci       Date:  1998-04-01       Impact factor: 6.167

6.  Altered electroretinograms in patients with KCNJ10 mutations and EAST syndrome.

Authors:  Dorothy A Thompson; Sally Feather; Horia C Stanescu; Bernard Freudenthal; Anselm A Zdebik; Richard Warth; Milos Ognjanovic; Sally A Hulton; Evangeline Wassmer; William van't Hoff; Isabelle Russell-Eggitt; Angus Dobbie; Eamonn Sheridan; Robert Kleta; Detlef Bockenhauer
Journal:  J Physiol       Date:  2011-02-07       Impact factor: 5.182

7.  Relevance of excitable media theory and retinal spreading depression experiments in preclinical pharmacological research.

Authors:  Fernandes de Lima V M; Hanke W
Journal:  Curr Neuropharmacol       Date:  2014-09       Impact factor: 7.363

8.  The neuroglial potassium cycle during neurotransmission: role of Kir4.1 channels.

Authors:  Jérémie Sibille; Khanh Dao Duc; David Holcman; Nathalie Rouach
Journal:  PLoS Comput Biol       Date:  2015-03-31       Impact factor: 4.475

Review 9.  The Plastic Glial-Synaptic Dynamics within the Neuropil: A Self-Organizing System Composed of Polyelectrolytes in Phase Transition.

Authors:  Vera Maura Fernandes de Lima; Alfredo Pereira
Journal:  Neural Plast       Date:  2016-02-01       Impact factor: 3.599
  9 in total

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