Linked Life Data

17267052

Source:http://linkedlifedata.com/resource/pubmed/id/17267052

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2007-2-28
pubmed:abstractText
Chronic changes in the level of neuronal activity (over a period of days) trigger compensatory changes in synaptic function that seem to contribute to the homeostatic restoration of neuronal activity. Changes in both quantal amplitude and vesicle release contribute to homeostatic synaptic plasticity, but they are often considered as the same phenomenon. In this review, we propose a new approach to studying how neuronal activity is sensed and changes in synaptic function are expressed during synaptic compensation. Changes in quantal amplitude and vesicle release should be considered separately in an attempt to identify the sensors that trigger homeostatic synaptic plasticity. Although data are limited, current evidence suggests that the sensors triggering changes in the quantal amplitude and vesicle release exist at different locations. Furthermore, it is important to recognize that at least two different mechanisms underlie changes in quantal amplitude during homeostatic synaptic plasticity: changes in both the number of postsynaptic receptors and loading of synaptic vesicles with neurotransmitter. Finally, modulation of the probability of neurotransmitter release contributes to the changes in vesicle release associated with homeostatic synaptic plasticity. An improved understanding of where and how neuronal activity is sensed, in addition to the types of changes in synaptic function that are induced, will be needed both to design future experiments and to understand the consequences of synaptic compensation following injury to the nervous system.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0166-2236
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
119-25
pubmed:dateRevised
2007-12-3
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Sensing and expressing homeostatic synaptic plasticity.
pubmed:affiliation
Department of Neuroscience, Cell Biology and Physiology, Wright State University, Dayton, OH 45435, USA. mark.rich@wright.edu
pubmed:publicationType
Journal Article, Review, Research Support, N.I.H., Extramural