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  2. Long-term potentiation - Wikipedia

    en.wikipedia.org/wiki/Long-term_potentiation

    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.

  3. Early long-term potentiation - Wikipedia

    en.wikipedia.org/wiki/Early_long-term_potentiation

    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 ...

  4. BCM theory - Wikipedia

    en.wikipedia.org/wiki/BCM_theory

    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]

  5. LTP induction - Wikipedia

    en.wikipedia.org/wiki/LTP_induction

    The induction of NMDA receptor-dependent long-term potentiation (LTP) in chemical synapses in the brain occurs via a fairly straightforward mechanism. [1] [2] A substantial and rapid rise in calcium ion concentration inside the postsynaptic cell (or more specifically, within the dendritic spine) is most possibly all that is required to induce LTP.

  6. Synaptic tagging - Wikipedia

    en.wikipedia.org/wiki/Synaptic_tagging

    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 ...

  7. Plant lipid transfer proteins - Wikipedia

    en.wikipedia.org/wiki/Plant_lipid_transfer_proteins

    Plant lipid transfer proteins, also known as plant LTPs or PLTPs, are a group of highly-conserved proteins of about 7-9kDa found in higher plant tissues. [ 1 ] [ 2 ] As its name implies, lipid transfer proteins facilitate the shuttling of phospholipids and other fatty acid groups between cell membranes . [ 3 ]

  8. Puzzle solutions for Wednesday, Nov. 20, 2024

    www.aol.com/news/puzzle-solutions-wednesday-nov...

    Note: Most subscribers have some, but not all, of the puzzles that correspond to the following set of solutions for their local newspaper. CROSSWORDS

  9. Synaptic plasticity - Wikipedia

    en.wikipedia.org/wiki/Synaptic_plasticity

    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 ...