Dendritic spine density is increased on nucleus accumbens D2 neurons after chronic social defeat
Stress alters the structure and function of brain reward circuitry and is an important risk factor for developing depression. In the nucleus accumbens (NAc), structural and physiological plasticity of medium spiny neurons (MSNs) have been linked to ...
Megan E. Fox+3 more
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Dnmt3a regulates emotional behavior and spine plasticity in the nucleus accumbens. [PDF]
Despite abundant expression of DNA methyltransferases (Dnmts) in brain, the regulation and behavioral role of DNA methylation remain poorly understood. We found that Dnmt3a expression was regulated in mouse nucleus accumbens (NAc) by chronic cocaine use ...
Bolaños, Carlos A+26 more
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Dopaminergic signaling in dendritic spines [PDF]
Dopamine regulates movement, motivation, reward, and learning and is implicated in numerous neuropsychiatric and neurological disorders. The action of dopamine is mediated by a family of seven-transmembrane G protein-coupled receptors encoded by at least five dopamine receptor genes (D1, D2, D3, D4, and D5), some of which are major molecular targets ...
Jingping Zhang+2 more
openaire +3 more sources
Isoflurane reversibly destabilizes hippocampal dendritic spines by an actin-dependent mechanism. [PDF]
General anesthetics produce a reversible coma-like state through modulation of excitatory and inhibitory synaptic transmission. Recent evidence suggests that anesthetic exposure can also lead to sustained cognitive dysfunction.
Jimcy Platholi+3 more
doaj +1 more source
A Mathematical Model of Tripartite Synapse: Astrocyte Induced Synaptic Plasticity
In this paper we present a biologically detailed mathematical model of tripartite synapses, where astrocytes modulate short-term synaptic plasticity. The model consists of a pre-synaptic bouton, a post-synaptic dendritic spine-head, a synaptic cleft and ...
Majumdar, Kaushik, Tewari, Shivendra
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PAK in Alzheimer disease, Huntington disease and X-linked mental retardation. [PDF]
Developmental cognitive deficits including X-linked mental retardation (XLMR) can be caused by mutations in P21-activated kinase 3 (PAK3) that disrupt actin dynamics in dendritic spines.
Cole, Greg M+3 more
core +1 more source
Dendritic spine geometry and spine apparatus organization govern the spatiotemporal dynamics of calcium. [PDF]
Dendritic spines are small subcompartments that protrude from the dendrites of neurons and are important for signaling activity and synaptic communication. These subcompartments have been characterized to have different shapes.
Bartol, Tom+3 more
core
The GDNF-GFRα1 complex promotes the development of hippocampal dendritic arbors and spines via NCAM [PDF]
The formation of synaptic connections during nervous system development requires the precise control of dendrite growth and synapse formation. Although glial cell line-derived neurotrophic factor (GDNF) and its receptor GFRα1 are expressed in the ...
Alsina, Fernando Cruz+5 more
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Dendritic spines are the location of excitatory synapses in the mammalian nervous system and are neuron-specific subcellular structures essential for neural circuitry and function. Dendritic spine morphology is determined by the F-actin cytoskeleton.
Hsiao-Tang Hu+3 more
doaj +1 more source
Pharmacological rescue of adult hippocampal neurogenesis in a mouse model of X-linked intellectual disability [PDF]
Oligophrenin-1 (OPHN1) is a Rho GTPase activating protein whose mutations cause X-linked intellectual disability (XLID). How loss of function of Ophnl affects neuronal development is only partly understood.
Allegra, M+7 more
core +1 more source