Structural basis and biophysical properties of synaptic plasticity studied by atomic force microscopy
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The two fundamental forms of short-term plasticity, short-term depression and facilitation, coexist at most synapses, but little is known about their interaction. Here, we studied the interplay between short-term depression and facilitation at calyx of Hel ...
Developmental refinement of synaptic transmission can occur via changes in several pre- and postsynaptic factors, but it has been unknown whether the intrinsic Ca2+ sensitivity of vesicle fusion in the nerve terminal can be regulated during development. Us ...
Neural cell adhesion molecule (NCAM)-mediated cell adhesion results in activation of intracellular signaling cascades that lead to cellular responses such as neurite outgrowth, neuronal survival, and modulation of synaptic activity associated with cognitiv ...
Functional evidence suggests that neuronal enriched endosomal protein of 21 kDa (NEEP21) takes part in facilitating transport of AMPA receptors (AMPAR) in the synapse. To explore the anatomical basis for a role in this synaptic trafficking, we investigated ...
Robberechts Q, Wijnants M, Giugliano M, De Schutter E. Longterm depression at parallel fiber to Golgi cell synapses. J Neurophysiol 104: 3413-3423, 2010. First published September 22, 2010; doi:10.1152/jn.00030.2010. Golgi cells (GoCs) are the primary inhi ...
Genetically encoded fluorescent sensor proteins offer the possibility to probe the concentration of key metabolites in living cells. The approaches currently used to generate such fluorescent sensor proteins lack generality, as they require a protein that ...
In this contribution we present multi-channel microinjector arrays fabricated by a reliable three-layer SU-8 process for the local delivery of specific substances into brain tissue. They are designed to be assembled with previously developed. implantable b ...
The distribution of synaptic efficacies in neocortex has an approximately lognormal shape. Many weak synaptic connections coexist with few very strong connections such that only 20% of synapses contribute 50% of total synaptic strength. Furthermore, recent ...
T he inhibitory neurotransmitter gamma-amino butyric acid (GABA) is synthesized by two isoforms of the enzyme glutamic acid decarboxylase (GAD): GAD65 and GAD67. Whereas GAD67 is constitutively active and produces >90% of GABA in the central nervous system ...
At presynaptic active zones, neurotransmitter release is initiated by the opening of voltage-gated Ca²+ channels close to docked vesicles. The mechanisms that enrich Ca²+ channels at active zones are, however, largely unknown, possibly because of the limit ...