Results 21 to 30 of about 22,985 (275)

Spine formation pattern of adult-born neurons is differentially modulated by the induction timing and location of hippocampal plasticity. [PDF]

open access: yesPLoS ONE, 2012
In the adult hippocampus dentate gyrus (DG), newly born neurons are functionally integrated into existing circuits and play important roles in hippocampus-dependent memory.
Noriaki Ohkawa   +8 more
doaj   +1 more source

Activation of Rac1 Has an Opposing Effect on Induction and Maintenance of Long-Term Potentiation in Hippocampus by Acting on Different Kinases

open access: yesFrontiers in Molecular Neuroscience, 2021
Rac1 is a small GTPase of the Rho family. A previous study showed that the activation of Rac1 had an opposing effect on induction and maintenance of long-term potentiation (LTP) in the hippocampus.
Dongyang Cui   +11 more
doaj   +1 more source

Olfactory learning-induced enhancement of the predisposition for LTP induction [PDF]

open access: goldLearning & Memory, 2011
Learning of a particularly difficult olfactory-discrimination (OD) task results in acquisition of rule learning. This enhancement in learning capability is accompanied by the long-term enhancement of synaptic connectivity between piriform cortex pyramidal neurons. In this study we examined whether olfactory rule learning would modify the predisposition
Yaniv Cohen   +3 more
openalex   +3 more sources

Long-lasting LTP requires neither repeated trains for its induction nor protein synthesis for its development. [PDF]

open access: yesPLoS ONE, 2012
Current thinking about LTP triggered in the area CA1 of hippocampal slices is ruled by two "dogmas": (1) A single train of high-frequency stimulation is sufficient to trigger short-lasting LTP (1-3 h), whereas multiple trains are required to induce long ...
Agnès Villers   +2 more
doaj   +1 more source

An Intellectual Disability-Related Missense Mutation in Rac1 Prevents LTP Induction. [PDF]

open access: yesFront Mol Neurosci, 2018
The small GTPase Rac1 promotes actin polymerization and plays a critical and increasingly appreciated role in the development and plasticity of glutamatergic synapses. Growing evidence suggests that disruption of the Rac1 signaling pathway at glutamatergic synapses contributes to Autism Spectrum Disorder/intellectual disability (ASD/ID)-related ...
Tian C   +5 more
europepmc   +6 more sources

Stimulation of protein synthesis by optogenetic and chemical induction of excitatory synaptic plasticity in hippocampal somatostatin interneurons

open access: yesMolecular Brain, 2022
Somatostatin-expressing interneurons (SOM-INs) are a major subpopulation of GABAergic cells in CA1 hippocampus that receive excitation from pyramidal cells (PCs) and provide feedback control of synaptic inputs onto PC dendrites.
Ève Honoré   +3 more
doaj   +1 more source

Underlying mechanisms of long-term potentiation during the inhibition of the cannabinoid CB1 and GABAB receptors in the dentate gyrus of hippocampus

open access: yesBMC Neuroscience, 2023
Background The release of various neurotransmitters and thereby the excitability of neuronal circuits are regulated by the endocannabinoid system in an activity-dependent manner. Hippocampal long-term potentiation (LTP) is augmented in cannabinoid type 1
Masoumeh Nazari   +4 more
doaj   +1 more source

Calcium-stimulated adenylyl cyclase subtype 1 (AC1) contributes to LTP in the insular cortex of adult mice

open access: yesHeliyon, 2017
Long-term potentiation (LTP) of synaptic transmission in the central nervous system is a key form of cortical plasticity. The insular cortex (IC) is known to play important roles in pain perception, aversive memory and mood disorders.
Manabu Yamanaka   +3 more
doaj   +1 more source

Involvement of GluA1-AMPAR-mediated LTP in time-dependent decline of cognitive function in rats with temporal lobe epilepsy

open access: yesActa Epileptologica, 2021
Background Cognitive impairment is one of the common comorbidities in patients with temporal lobe epilepsy (TLE), but the underlying mechanisms remain largely unknown.
Xiaoqing Luo   +5 more
doaj   +1 more source

Temporal sensitivity of protein kinase a activation in late-phase long term potentiation. [PDF]

open access: yesPLoS Computational Biology, 2010
Protein kinases play critical roles in learning and memory and in long term potentiation (LTP), a form of synaptic plasticity. The induction of late-phase LTP (L-LTP) in the CA1 region of the hippocampus requires several kinases, including CaMKII and PKA,
MyungSook Kim   +3 more
doaj   +1 more source

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