Literature DB >> 8390312

Priming of homosynaptic long-term depression in hippocampus by previous synaptic activity.

E M Wexler1, P K Stanton.   

Abstract

Mechanisms regulating long-lasting, activity-dependent decreases in synaptic strength are poorly understood. Theoretical studies have suggested that the critical level (threshold) of synaptic activity needed to induce long-term depression (LTD) versus potentiation (LTP) of synaptic transmission should vary as a function of previous synaptic activity. In order to determine whether such a 'sliding threshold' is indeed a physiological phenomenon, we stimulated Schaffer collateral afferents in area CA1 of rat hippocampal slices at frequencies from 1 to 5 Hz before or after inducing LTP.

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Year:  1993        PMID： 8390312     DOI： 10.1097/00001756-199305000-00034

Source DB:  PubMed          Journal:  Neuroreport        ISSN： 0959-4965            Impact factor:   1.837


  23 in total

Review 1.  Synaptic plasticity in the hippocampus during afferent activation reproducing the pattern of the theta rhythm (theta plasticity).

Authors:  A M Kleshchevnikov
Journal:  Neurosci Behav Physiol       Date:  1999 Mar-Apr

2.  A nitric oxide-independent and beta-adrenergic receptor-sensitive form of metaplasticity limits theta-frequency stimulation-induced LTP in the hippocampal CA1 region.

Authors:  T D Moody; H J Carlisle; T J O'Dell
Journal:  Learn Mem       Date:  1999 Nov-Dec       Impact factor: 2.460

3.  N-methyl-D-aspartate receptor blockade during development lowers long-term potentiation threshold without affecting dynamic range of CA3-CA1 synapses.

Authors:  Natasa Savić; Andreas Lüthi; Beat H Gähwiler; R Anne McKinney
Journal:  Proc Natl Acad Sci U S A       Date:  2003-04-17       Impact factor: 11.205

4.  Susceptibility to induction of long-term depression is associated with impaired memory in aged Fischer 344 rats.

Authors:  Thomas C Foster; Ashok Kumar
Journal:  Neurobiol Learn Mem       Date:  2007-02-05       Impact factor: 2.877

5.  Properties of long-term synaptic plasticity and metaplasticity in organotypic slice cultures of rat hippocampus.

Authors:  Christian Mellentin; Morten Møller; Henrik Jahnsen
Journal:  Exp Brain Res       Date:  2005-11-23       Impact factor: 1.972

6.  Role of protein kinase C in the induction of homosynaptic long-term depression by brief low frequency stimulation in the dentate gyrus of the rat hippocampus in vitro.

Authors:  Y Wang; J Wu; M J Rowan; R Anwyl
Journal:  J Physiol       Date:  1998-12-01       Impact factor: 5.182

7.  Induction of hippocampal long-term depression requires release of Ca2+ from separate presynaptic and postsynaptic intracellular stores.

Authors:  M Reyes; P K Stanton
Journal:  J Neurosci       Date:  1996-10-01       Impact factor: 6.167

8.  Primed facilitation of homosynaptic long-term depression and depotentiation in rat hippocampus.

Authors:  L L Holland; J J Wagner
Journal:  J Neurosci       Date:  1998-02-01       Impact factor: 6.167

9.  Low-frequency stimulation cancels the high-frequency-induced long-lasting effects in the rat medial vestibular nuclei.

Authors:  S Grassi; V E Pettorossi; M Zampolini
Journal:  J Neurosci       Date:  1996-05-15       Impact factor: 6.167

10.  "Silent" metaplasticity of the late phase of long-term potentiation requires protein phosphatases.

Authors:  Newton H Woo; Peter V Nguyen
Journal:  Learn Mem       Date:  2002 Jul-Aug       Impact factor: 2.460
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