Document Detail


The role of electrical signaling via gap junctions in the generation of fast network oscillations.
MedLine Citation:
PMID:  14596887     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In recent years, several key studies have shed new light on the roles of electrical signaling via gap junctions between neurons in the adult brain. In particular, it is now clear that electrical signaling is important, if not essential, for the generation of a wide variety of different network interactions which may underlie rhythmic activity, of cognitive relevance, seen in EEG recordings. Two types of such rhythmic activity observed in the hippocampus both in vivo and in vitro are gamma frequency (30-80Hz) oscillations and ultrafast (>80Hz) "ripple" oscillations. Several lines of work, discussed here, show that gap junction-mediated signaling plays a central role in the generation of both these types of network activity. Recent work also now suggests that a number of different, anatomically discrete, gap junction-mediated networks may exist which could both function and be modulated independently.
Authors:
Fiona E N LeBeau; Roger D Traub; Hannah Monyer; Miles A Whittington; Eberhard H Buhl
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Brain research bulletin     Volume:  62     ISSN:  0361-9230     ISO Abbreviation:  Brain Res. Bull.     Publication Date:  2003 Nov 
Date Detail:
Created Date:  2003-11-04     Completed Date:  2004-01-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7605818     Medline TA:  Brain Res Bull     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3-13     Citation Subset:  IM    
Affiliation:
School of Biomedical Sciences, University of Leeds, LS2 9NQ, Leeds, UK. F.E.N.LeBeau@leeds.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animals
Connexins / metabolism
Cortical Synchronization*
Electric Conductivity
Electroencephalography
Gap Junctions / physiology*
Hippocampus / cytology,  physiology
Humans
Models, Neurological
Nerve Net / physiology*
Neurons / classification,  physiology*
Signal Transduction / physiology*
Chemical
Reg. No./Substance:
0/Connexins; 0/connexin 36

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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