| Literature DB >> 10506556 |
H Dodt1, M Eder, A Frick, W Zieglgänsberger.
Abstract
In a direct approach to elucidate the origin of long-term depression (LTD), glutamate was applied onto dendrites of neurons in rat neocortical slices. An infrared-guided laser stimulation was used to release glutamate from caged glutamate in the focal spot of an ultraviolet laser. A burst of light flashes caused an LTD-like depression of glutamate receptor responses, which was highly confined to the region of "tetanic" stimulation (<10 micrometers). A similar depression of glutamate receptor responses was observed during LTD of synaptic transmission. A spatially highly specific postsynaptic mechanism can account for the LTD induced by glutamate release.Entities:
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Year: 1999 PMID: 10506556 DOI: 10.1126/science.286.5437.110
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728