Publikationsdatum:
1996-03-01
Beschreibung:
Analysis of strontium-induced asynchronous release of quanta from stimulated synapses revealed that long-term potentiation and long-term depression in the CA1 region of the mammalian hippocampus are associated with an increase and a decrease, respectively, in quantal size. At a single set of synapses, the increase in quantal size seen with long-term potentiation was completely reversed by depotentiating stimuli. Long-term potentiation and depression are also associated with an increase and decrease, respectively, in the frequency of quantal events, consistent with an all-or-none regulation (up or down) of clusters of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors, a change in the release of transmitter, or both.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oliet, S H -- Malenka, R C -- Nicoll, R A -- New York, N.Y. -- Science. 1996 Mar 1;271(5253):1294-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Pharmacology, University of California, San Francisco 94143-0450, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638114" target="_blank"〉PubMed〈/a〉
Schlagwort(e):
Animals
;
Calcium/pharmacology
;
Electric Stimulation
;
Evoked Potentials
;
Guinea Pigs
;
Hippocampus/cytology/*physiology
;
In Vitro Techniques
;
Long-Term Potentiation/*physiology
;
Neuronal Plasticity/*physiology
;
Neurons/*physiology
;
Patch-Clamp Techniques
;
Rats
;
Rats, Sprague-Dawley
;
Receptors, AMPA/physiology
;
Strontium/pharmacology
;
Synapses/*physiology
;
*Synaptic Transmission
Print ISSN:
0036-8075
Digitale ISSN:
1095-9203
Thema:
Biologie
,
Chemie und Pharmazie
,
Informatik
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
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