LGICLigand Gated Ion Channels (cell signalling)
LGICLieutenant Governor in Council (Canada)
LGICLine Group ISDN Controller
LGICLG Information and Communication Ltd. (electronics company; Seoul, South Korea)
LGICLacrimal Gland Interstitial Cells (microbiology)
LGICLocal Government Information Centre (various locations)
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References in periodicals archive ?
Synaptic responses mediated by LGICs are designated as excitatory or inhibitory, depending on whether their net effect is to make it more or less likely that the postsynaptic neuron will fire an action potential (Kandel et al.
Activation of this G[beta]/[gamma]-GIRK pathway will produce neuronal inhibition, although on a slower timescale than that produced by inhibitory LGICs. In general, the responses produced by GPCRs are slower in onset and longer lasting than those produced by LGICs because several molecular steps are required to get from the receptor protein to the final effector (in contrast to the direct intraprotein signaling within LGICs).
The fast synaptic excitation produced by glutamate involves the activation of three major subtypes of LGICs, termed the AMPA ([alpha]-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) (3)-, kainate-, and NMDA (N-methyl-D-aspartic acid) (4)-type receptors based on the synthetic agonists that best activate each receptor (Kandel et al.
When glutamate binds to the NMDA receptor, activation of the intrinsic ion pore is favored, as is the case for AMPA receptors and other LGICs. However, at membrane potentials near the resting potential (e.g., -60 to -70 mV), the ion pore of the NMDA receptor is occluded by magnesium ions (Kandel et al.