rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
5231
|
pubmed:dateCreated |
1995-10-25
|
pubmed:abstractText |
Developmental changes in rat hippocampal transmitter release and synaptic plasticity were investigated. Recordings from pairs of pyramidal neurons in slices showed that an action potential in a CA3 neuron released only a single quantum of transmitter onto a CA1 neuron. Failures of synaptic transmission reflected probabilistic transmitter release. The probability of release (Pr) was 0.9 in 4- to 8-day-old rats and decreased to less than 0.5 at 2 to 3 weeks. Long-term potentiation (LTP) in 2- to 3-week-old rats was associated with an increase in Pr from a single synaptic site. The high initial Pr in 4- to 8-day-old rats normally occludes the expression of LTP at this stage.
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pubmed:commentsCorrections |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
0036-8075
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
22
|
pubmed:volume |
269
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1730-4
|
pubmed:dateRevised |
2007-3-19
|
pubmed:meshHeading |
pubmed-meshheading:7569903-Action Potentials,
pubmed-meshheading:7569903-Aging,
pubmed-meshheading:7569903-Animals,
pubmed-meshheading:7569903-Animals, Newborn,
pubmed-meshheading:7569903-Calcium,
pubmed-meshheading:7569903-Hippocampus,
pubmed-meshheading:7569903-Long-Term Potentiation,
pubmed-meshheading:7569903-Neuronal Plasticity,
pubmed-meshheading:7569903-Neurotransmitter Agents,
pubmed-meshheading:7569903-Patch-Clamp Techniques,
pubmed-meshheading:7569903-Presynaptic Terminals,
pubmed-meshheading:7569903-Probability,
pubmed-meshheading:7569903-Pyramidal Cells,
pubmed-meshheading:7569903-Rats,
pubmed-meshheading:7569903-Rats, Sprague-Dawley,
pubmed-meshheading:7569903-Synaptic Transmission,
pubmed-meshheading:7569903-Synaptic Vesicles
|
pubmed:year |
1995
|
pubmed:articleTitle |
Regulation of hippocampal transmitter release during development and long-term potentiation.
|
pubmed:affiliation |
Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
|
pubmed:publicationType |
Journal Article,
In Vitro
|