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Long-term potentiation (LTP) is a persistent increase in synaptic strength following high-frequency stimulation of a chemical synapse. Studies of LTP are often carried out in slices of the hippocampus, an important organ for learning and memory. In such studies, electrical recordings are made from cells and plotted in a graph such as this one.
According to the BCM model, when a pre-synaptic neuron fires, the post-synaptic neurons will tend to undergo LTP if it is in a high-activity state (e.g., is firing at high frequency, and/or has high internal calcium concentrations), or LTD if it is in a lower-activity state (e.g., firing in low frequency, low internal calcium concentrations). [1]
It has been proposed that long-term potentiation is composed of at least two different phases: [4] protein synthesis-independent E-LTP (early LTP) and protein synthesis-dependent L-LTP (late LTP). A single train of high-frequency stimuli is needed to trigger E-LTP that begins right after the stimulation, lasting a few hours or less, and ...
Two molecular mechanisms for synaptic plasticity involve the NMDA and AMPA glutamate receptors. Opening of NMDA channels (which relates to the level of cellular depolarization) leads to a rise in post-synaptic Ca 2+ concentration and this has been linked to long-term potentiation, LTP (as well as to protein kinase activation); strong depolarization of the post-synaptic cell completely ...
It involves late-associative interactions between LTP and LTD induced in sets of independent synaptic inputs: late-LTP induced in one set of synaptic inputs can transform early-LTD into late-LTD in another set of inputs. The opposite effect also occurs: early LTP induced in the first synapse can be transformed into late LTP if followed by a ...
The "passivity" agreement FDIC wants BlackRock to sign is designed to assure bank regulators that the giant money manager will remain a "passive" owner of an FDIC-supervised bank and won’t exert ...
LTP can be induced from dendrites severed from the soma of the post-synaptic target neuron. Contrarily, LTP can be blocked in these dendrites by protein synthesis blockers, such as Endomyacin, which further indicates a site for local protein synthesis. This evidence shows local protein synthesis is necessary for L-LTP to be stabilized and ...
Download as PDF; Printable version; In other projects Wikidata item; ... LTP may refer to: Biology and medicine. Lateral tibial plateau, part of a leg bone;
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