Results 21 to 30 of about 328,871 (251)

Protein synthesis at synaptic sites on dendrites [PDF]

open access: yes, 2001
Studies over the past 20 years have revealed that gene expression in neurons is carried out by a distributed network of translational machinery. One component of this network is localized in dendrites, where polyribosomes and associated membranous ...
Schuman, Erin M., Steward, Oswald
core   +1 more source

Why Neurons Have Thousands of Synapses, A Theory of Sequence Memory in Neocortex [PDF]

open access: yes, 2015
Neocortical neurons have thousands of excitatory synapses. It is a mystery how neurons integrate the input from so many synapses and what kind of large-scale network behavior this enables.
Ahmad, Subutai, Hawkins, Jeff
core   +3 more sources

Diluted neural networks with adapting and correlated synapses

open access: yes, 2001
We consider the dynamics of diluted neural networks with clipped and adapting synapses. Unlike previous studies, the learning rate is kept constant as the connectivity tends to infinity: the synapses evolve on a time scale intermediate between the ...
A.C.C. Coolen   +19 more
core   +1 more source

Optimal storage and recall with biologically plausible synapses [PDF]

open access: yes, 2011
Synaptic plasticity is widely accepted to underlie learning and memory. Yet, models of associative networks with biologically plausible synapses fail to match brain performance: memories stored in such networks are quickly overwritten by ongoing ...
Cristina Savin, Mate Lengyel
core   +2 more sources

Rapid, learning-induced inhibitory synaptogenesis in murine barrel field [PDF]

open access: yes, 2010
The structure of neurons changes during development and in response to injury or alteration in sensory experience. Changes occur in the number, shape, and dimensions of dendritic spines together with their synapses. However, precise data on these changes
Cybulska-Klosowicz, A   +6 more
core   +1 more source

Autophagy at the synapse [PDF]

open access: yesNeuroscience Letters, 2019
As the sites of communication between neurons, synapses depend upon precisely regulated protein-protein interactions to support neurotransmitter release and reception. Moreover, neuronal synapses typically exist great distances (i.e. up to meters) away from cell bodies, which are the sources of new proteins and the major sites of protein degradation ...
Veronica Birdsall, Clarissa L. Waites
openaire   +2 more sources

Microglial dynamics and ferroptosis induction in human iPSC‐derived neuron–astrocyte–microglia tri‐cultures

open access: yesFEBS Open Bio, EarlyView.
A tri‐culture of iPSC‐derived neurons, astrocytes, and microglia treated with ferroptosis inducers as an Induced ferroptosis model was characterized by scRNA‐seq, cell survival, and cytokine release assays. This analysis revealed diverse microglial transcriptomic changes, indicating that the system captures key aspects of the complex cellular ...
Hongmei Lisa Li   +6 more
wiley   +1 more source

Mutations in shaking-B prevent electrical synapse formation in the Drosophila giant fiber system [PDF]

open access: yes, 1996
The giant fiber system (GFS) is a simple network of neurons that mediates visually elicited escape behavior in Drosophila. The giant fiber (GF), the major component of the system, is a large, descending interneuron that relays visual stimuli to the ...
Bacon, Jonathan P   +6 more
core   +2 more sources

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

Accumulation of Dense Core Vesicles in Hippocampal Synapses Following Chronic Inactivity. [PDF]

open access: yes, 2018
The morphology and function of neuronal synapses are regulated by neural activity, as manifested in activity-dependent synapse maturation and various forms of synaptic plasticity.
Bi, Guo-Qiang   +4 more
core   +2 more sources

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