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Type of GABAergic neuron in the striatum
Medium spiny neurons (MSNs), also known as spiny projection neurons (SPNs), are a special type of inhibitory GABAergic neuron representing approximately
Medium_spiny_neuron
Region of the basal forebrain
NAcc subregions (core vs shell) and neuron subpopulations within each region (D1-type vs D2-type medium spiny neurons) are responsible for different cognitive
Nucleus_accumbens
Inherited neurodegenerative disorder
causes degeneration of medium spiny neurons. Regions of the brain have differing amounts and reliance on these types of neurons and are affected accordingly
Huntington's_disease
Brain pathway
of medium spiny neurons. The nucleus accumbens is subdivided into limbic and motor subregions known as the NAcc shell and NAcc core. The medium spiny neurons
Mesolimbic_pathway
Nucleus in the basal ganglia of the brain
inhibitory neurons. Medium spiny projection neurons comprise 95% of the total neuronal population of the human striatum. Medium spiny neurons have two characteristic
Striatum
Topics referred to by the same term
typically used by aircraft companies. Master of Science in Nursing Medium spiny neuron Meeker Southern Railroad, which uses the reporting mark 'MSN' Meter
MSN_(disambiguation)
Bilateral pathway in the brain
Dopaminergic neurons of this pathway release dopamine from axon terminals that synapse onto GABAergic medium spiny neurons (MSNs), also known as spiny projection
Nigrostriatal_pathway
to neurons in the putamen. The main neurons found within these structures are named medium spiny neurons. The activation of medium spiny neurons is generally
Premovement_neuronal_activity
Group of neural structures responsible for motivation and desire
interneurons, GABAergic medium spiny neurons (MSNs), and dopaminergic projection neurons, although other types of projection neurons contribute (e.g., orexinergic
Reward_system
American neuroscientist
by cocaine administration, yet silencing them lead to increased medium spiny neuron activity in the NaC and prevented cocaine conditioning in mice. Witten's
Ilana_B._Witten
Chemical substance that enables neurotransmission
2016). "In vivo imaging identifies temporal signature of D1 and D2 medium spiny neurons in cocaine reward". Proceedings of the National Academy of Sciences
Neurotransmitter
Primary cell of the nervous system
cells, large motor neurons in primary motor cortex Lugaro cells, interneurons of the cerebellum Medium spiny neurons, most neurons in the corpus striatum
Neuron
In neurophysiology, a reduction of neuronal synapse efficacy
synaptic depression in medium spiny neurons is mediated by cholinergic interneurons". Neuron. 50 (3): 443–452. doi:10.1016/j.neuron.2006.04.010. PMID 16675398
Long-term_depression
Medical condition
medium spiny neurons (MSNs) located in striatum, mainly in the caudate nucleus, putamen, and the globus pallidus. The specific loss of medium spiny neurons
X-linked dystonia parkinsonism
X-linked_dystonia_parkinsonism
Area at the bottom of the forebrain
of the forebrain. The dopaminergic neurons of the mesolimbic pathway project onto the GABAergic medium spiny neurons of the nucleus accumbens and olfactory
Olfactory_tubercle
Projection neurons in the brain that synthesize and release dopamine
tubercle contains a striatal component, which is filled with GABAergic medium spiny neurons receiving glutamatergic inputs form cortical regions and dopaminergic
Dopaminergic_pathways
Behavioral addiction characterized by compulsory indulgence over foods
the expression of ΔFosB, an addiction biomarker, in the D1-type medium spiny neurons of the nucleus accumbens; however, there is very little research
Food_addiction
Information input comes from the hindbrain by dopaminergic neurons, which connect to medium spiny neurons (MSN) in the striatum. The striatum contains two distinct
Microphthalmia, syndromic 12 (MCOPS12)
Microphthalmia,_syndromic_12_(MCOPS12)
Network or circuit of neurons
elimination of dendritic spines in dopaminergic neurons in the substantia nigra and medium spiny neurons from the striatum which are located in the basal
Neural_circuit
Small protrusion on a dendrite that receives input from a single axon
dendrites of most principal neurons in the brain, including the pyramidal neurons of the neocortex, the medium spiny neurons of the striatum, and the Purkinje
Dendritic_spine
Pharmaceutical compound
dopaminergic signaling in the striatum through PDE10A inhibition in medium spiny neurons. Gemlapodect was originated by Roche and is under development by
Gemlapodect
Structure in nervous systems
or functionally associated neurons. A single neuron may be connected to many other neurons and the total number of neurons and connections in a network
Neural_network_(biology)
Cognitive process
Bindra Conditioned place preference Desire Dopamine Kent C. Berridge Medium spiny neuron § Ventral striatal MSNs Pavlovian-instrumental transfer Pleasure
Motivational_salience
Group of subcortical nuclei involved in the motor and reward systems
dorsolateral striatum. The striatum is composed mostly of medium spiny neurons. These GABAergic neurons project to the external (lateral) globus pallidus and
Basal_ganglia
Structure within the basal ganglia of the brain
nucleus accumbens projects to the medial dorsal nucleus via GABAergic medium spiny neurons. The rewarding effects of addictive drugs are mediated in part through
Ventral_pallidum
Diagnostic framework in personalized psychiatry
CREB Dopamine and dopamine-related molecules FosB Dopaminergic neurons medium spiny neurons Substantia Nigra dorsal striatum Medial Prefrontal Cortex SN/VTA
Research_Domain_Criteria
Unconscious memory used to perform tasks
the medium spiny neuron. The two parallel pathways previously mentioned travel to and from the striatum and are made up of these same special medium spiny
Procedural_memory
American neuroscientist
Synaptic Depression in Medium Spiny Neurons Is Mediated by Cholinergic Interneurons". Neuron. 50 (3): 443–452. doi:10.1016/j.neuron.2006.04.010. ISSN 0896-6273
D._James_Surmeier
Receptor heteromer
heteromer in dual phenotype GABA/glutamate-coexpressing striatal medium spiny neurons: regulation of BDNF, GAD67 and VGLUT1/2". PLOS ONE. 7 (3) e33348
D1–D2 dopamine receptor heteromer
D1–D2_dopamine_receptor_heteromer
Drug mixture used mainly to treat ADHD and narcolepsy
which produces a pronounced gene-related phenotype) in the D1-type medium spiny neurons in the nucleus accumbens is necessary and sufficient for many of
Adderall
State or quality by which an item stands out from its neighbors
physical/perceptual salience in attentional selection. One group of neurons (i.e., D1-type medium spiny neurons) within the nucleus accumbens shell (NAcc shell) assigns
Salience_(neuroscience)
Branch of neuroscience
Blocking GABA receptor input from medium spiny neurons to reticulata cells, causes inhibition of upper motor neurons similar to the inhibition that occurs
Molecular_neuroscience
Neuronal circuit that suppresses unwanted movements
The indirect pathway originates in the D2 subtype of the striatal medium spiny neuron, which respond to the absence of continuous dopamine signal. The
Indirect_pathway
Protein-coding gene in the species Homo sapiens
of B cell differentiation ovarian follicle development striatal medium spiny neuron differentiation positive regulation of protein metabolic process
INHBA
Protein
of ΔFosB isoforms. ΔFosB expression in D1-type nucleus accumbens medium spiny neurons directly and positively regulates drug self-administration and reward
FOSB
Neuroscientist of addiction and depression
Among the prominent targets of this work are medium spiny neurons of the nucleus accumbens and pyramidal neurons in prefrontal cortex and ventral hippocampus
Eric_J._Nestler
Protein-coding gene in the species Homo sapiens
monophosphate (cAMP). In the brain, this enzyme is highly expressed in medium spiny neurons (MSNs) in the striatum. It is also found in non-neuronal cells such
ADCY5
the hypothalamus, the nucleus accumbens core (specifically, the medium spiny neurons of the D2-type which co-express adenosine A2A receptors), and a GABAergic
Parafacial_zone
Genetic brain disorder
by acting on dopaminergic receptors located on striatal GABAergic medium spiny neurons. Dysregulation of the nigrostriatal pathway is causative from Parkinson
Rett_syndrome
Canadian Neuroscientist
MC, Kravitz AV. Continuous representations of speed by striatal medium spiny neurons. J Neurosci. 2020 Feb 19;40(8):1679-1688. Godynyuk E, Bluitt MN,
Meaghan_Creed
drugs. The most common cell type in the NAc is the GABAergic medium spiny neuron. These neurons project inhibitory connections to the VTA and receive excitatory
Addiction-related structural neuroplasticity
Addiction-related_structural_neuroplasticity
Period of sleep in humans and other animals
neurons), located within the medulla oblongata the nucleus accumbens core (GABAergic medium spiny neurons; specifically, the subset of these neurons that
Slow-wave_sleep
nerve cells, also known as neurons, present in the human body. They are branched out. These cells make up nervous tissue. A neuron consists of a cell body
List_of_human_cell_types
CNS stimulant and isomer of amphetamine
which produces a pronounced gene-related phenotype) in the D1-type medium spiny neurons in the nucleus accumbens is necessary and sufficient for many of
Dextroamphetamine
the NAc. Firstly, the released glutamate reduces the activity of medium spiny neurons (MSNs), decreasing reward-seeking behaviors. Secondly, the glutamate
Paraventricular_thalamus
Central nervous system disease
mutations in the huntingtin gene (HTT). HD is characterized by loss of medium spiny neurons and astrogliosis. The first brain region to be substantially affected
Neurodegenerative_disease
Protein-coding gene in humans
PSD-95 complexes by the Shank family of postsynaptic density proteins". Neuron. 23 (3): 583–592. doi:10.1016/S0896-6273(00)80810-7. PMID 10433269. Boeckers
SHANK3
Dissociative hallucinogenic drug, mostly used recreationally
is self-administered and induces ΔFosB expression in the D1-type medium spiny neurons of the nucleus accumbens, and accordingly, excessive PCP use is known
Phencyclidine
Indian-American neuroscientist
reward: Murthy's 2022 study in eLife demonstrated that D1 and D2 medium spiny neurons in the olfactory tubercle differentially encode cue-outcome associations
Venkatesh_N._Murthy
Proposed compulsive sexual disorder
the reward system and the accumulation of ΔFosB in a specific group of neurons within the nucleus accumbens has been directly implicated in the development
Sexual_addiction
Classification of problem drinking as a disease
pathway which culminates in ΔFosB overexpression within the D1-type medium spiny neurons of the nucleus accumbens; when this overexpression occurs, ΔFosB
Disease_theory_of_alcoholism
Chemical or electrical synapse from a neuron onto itself
S2CID 37317913. Preston, R.J.; Bishop, G.A.; Kitai, S.T. (1980-02-10). "Medium spiny neuron projection from the rat striatum: An intracellular horseradish peroxidase
Autapse
Biological model of 2 or more cell types
striatal organoids. This research demonstrated increased striatal medium spiny neuron activity in Phelan-McDermid-derived assembloids after fusion of striatal
Assembloid
Chemical stimulant produced by some plants
accumulation of the transcription factor ΔFosB in dopamine D1-type medium spiny neurons of the nucleus accumbens, a process implicated in sustained reward
Nicotine
American academic
exercise reverses dendritic spine loss in direct and indirect striatal medium spiny neurons in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse
John Walsh (American scientist)
John_Walsh_(American_scientist)
Construct in psychology
moderating this reward learning process. Excitability of inhibitory medium spiny neurons in the nucleus accumbens and ventral striatum have been found to
Distress_tolerance
Central nervous system stimulant
development of drug addictions, since its overexpression in D1-type medium spiny neurons in the nucleus accumbens is necessary and sufficient for most of
Methamphetamine
Italian molecular biologist (born 1971)
J. D. (16 January 2008). "Ctip2 Controls the Differentiation of Medium Spiny Neurons and the Establishment of the Cellular Architecture of the Striatum"
Paola_Arlotta
PMID 27568516. Reinius B; et al. (March 27, 2015). "Conditional targeting of medium spiny neurons in the striatal matrix". Front. Behav. Neurosci. 9: 71. doi:10.3389/fnbeh
Striosome
Part of the nervous system in primates
ganglia. Medium spiny neurons (MSN)s, account for up to 95 per cent of the striatal neurons. There are two populations of these projection neurons, MSN1
Primate_basal_ganglia
Ability of the brain to continuously change
2020. Scheler, Gabriele (2013). "Learning intrinsic excitability in medium spiny neurons". F1000Research. 2: 88. doi:10.12688/f1000research.2-88.v2. PMC 4264637
Neuroplasticity
American neuroscientist
neurodegeneration occur in specifically striatal medium spiny neurons and cortical pyramidal neurons. She also explores the potential of modifying gliotransmitters
Michelle Gray (neuroscientist)
Michelle_Gray_(neuroscientist)
Swiss neurobiologist (born 1963)
observed that suppression of activity of D1 receptor expression medium spiny neurons that project to the lateral hypothalamus (LH) authorizes food intake
Christian Lüscher (neurobiologist)
Christian_Lüscher_(neurobiologist)
Central nervous system stimulant
which produces a pronounced gene-related phenotype) in the D1-type medium spiny neurons in the nucleus accumbens is necessary and sufficient for many of
Amphetamine
Controlling biological cells with light
accumbal neurons, these cholinergic cells are able to control the activity of the dopaminergic terminals that innervate medium spiny neurons (MSNs) in
Optogenetics
Therapy for the treatment of Parkinson's disease
have been designed to send the AADC coding sequence to the MSN (medium spiny neurons) in the striatum to be able to convert administered L-dopa into dopamine
Gene therapy in Parkinson's disease
Gene_therapy_in_Parkinson's_disease
Drug formerly in development
particularly important in regulating the activity of dopamine-sensitive medium spiny neurons in the striatum which are known to be targets of conventional antipsychotic
Mardepodect
Branch of biology concerning depressive disorders in humans
receptor-expressing medium spiny neurons (D2-MSNs) and depression of excitatory inputs to dopamine D1 receptor-expressing medium spiny neurons (D1-MSNs). Optogenetic
Biology_of_depression
Protein-coding gene in the species Homo sapiens
positive T cell selection transcription, DNA-templated striatal medium spiny neuron differentiation odontogenesis of dentin-containing tooth regulation
BCL11B
Mental disorder
Genetic risk is linked to excitatory neurons in the hippocampus and cerebral cortex, D1 and D2 medium spiny neurons, and overlaps with anxiety, depression
Obsessive–compulsive_disorder
American psychiatric neuroscientist
of neuron subtypes. To achieve this, she had to develop a novel methodology for isolating the main striatal projection neuron subtypes (medium spiny neurons)
Mary_Kay_Lobo
American neuroscientist
channel in Huntington's disease models, which affected striatal medium spiny neurons due to elevated extracellular K+ levels. Their findings highlighted
Michael_Sofroniew
Central nervous system stimulant
methylphenidate has been shown to induce the expression of ΔFosB in D1-type medium spiny neurons of the nucleus accumbens, with accumbal ΔFosB levels accumulating
Dexmethylphenidate
American neuroscientist
transporters control reciprocal inhibition and gain modulation in D1 medium spiny neurons". eLife. 12 e81830. doi:10.7554/eLife.81830. ISSN 2050-084X. PMC 10411972
Annalisa_Scimemi
Dicarboxylic acid with pyridine backbone
acid leads to neuronal dysfunction and death of striatal GABAergic medium spiny neurons (MSN). Researchers utilize quinolinic acid in order to study Huntington's
Quinolinic_acid
Central nervous system stimulant
methylphenidate has been shown to induce the expression of ΔFosB in D1-type medium spiny neurons of the nucleus accumbens, with accumbal ΔFosB levels accumulating
Methylphenidate
Disorder resulting in compulsive behaviors
different routes. The nucleus accumbens, made up largely of GABAergic medium spiny neurons, is a principal target of these projections and is involved in learning
Addiction
Protein-coding gene in the species Homo sapiens
cleavage of the proenkephalin protein. Proenkephalin is produced by the medium spiny neurons of the striatum which undergo neurodegeneration in early stages of
Proenkephalin
Guanine nucleotide exchange factor
Ras-GRF1/ERK pathway has also been found to affect the activity of LTP in medium spiny neuron (MSN) pathways. Ras-GRF1 knockout mice treated with HFS-LTP have
Ras-GRF1
Structure in the basal ganglia of the brain
direct and indirect pathways. The direct pathway consists of axons from medium spiny cells in the striatum that project directly to pars reticulata. The indirect
Substantia_nigra
Protein-coding gene in the species Homo sapiens, named for ketazocine
dynorphin-expressing neurons produces presynaptic inhibition of both glutamatergic and GABAergic afferents onto D1 receptor-expressing medium spiny neurons, with preferential
Κ-opioid_receptor
Models used in Parkinson's disease research
pα-syn travels from the soma of the neuron to the terminals, where expression are maintained within medium spiny neurons. Leucine-rich repeat kinase (LRRK2)
Animal models of Parkinson's disease
Animal_models_of_Parkinson's_disease
Outer layer of the cerebrum of the mammalian brain
pyramidal neurons and numerous stellate neurons. Layer III, the external pyramidal layer, contains predominantly small and medium-size pyramidal neurons, as
Cerebral_cortex
Family of transcription factor protein complexes
c-Fos repression allows ΔFosB to accumulate within nucleus accumbens medium spiny neurons more rapidly because it is selectively induced in this state. ΔFosB
NF-κB
Neural, cognitive, and behavioral effects of physical exercise
behavioral plasticity; some of these long-term effects may include increased neuron growth, increased neurological activity (e.g., c-Fos and BDNF signaling)
Neurobiological effects of physical exercise
Neurobiological_effects_of_physical_exercise
Class of G protein-coupled receptors
"Regulation of neuromodulator receptor efficacy--implications for whole-neuron and synaptic plasticity". Prog. Neurobiol. 72 (6): 399–415. arXiv:q-bio/0401039
Dopamine_receptor
Form of neuroplasticity
S2CID 13151568. Scheler G (2014). "Learning intrinsic excitability in medium spiny neurons". F1000Research. 2: 88. arXiv:q-bio/0502023. doi:10.12688/f1000research
Nonsynaptic_plasticity
the effects of neurotransmitters and similarly functioning chemicals on neurons themselves, clinical neurochemistry relates these phenomena to system-wide
Clinical_neurochemistry
Mammalian protein found in Homo sapiens
sensitization. c-Fos repression by ΔFosB's AP-1 complex within the D1-type medium spiny neurons of the nucleus accumbens acts as a molecular switch that enables
Protein_c-Fos
Protein found in humans
dendritic branch points and spines, both in medium spiny neurons in the nucleus accumbens and pyramidal neurons in the medial prefrontal cortex. Hence, its
Cyclin-dependent_kinase_5
Protein
glutamate-innervated rat caudate-putamen, DARPP32 is expressed in medium-sized spiny neurons that also express dopamine D1 receptors. The function of DARPP32
PPP1R1B
Cell line used for scientific research
process involved the selection of individual cells or clusters expressing neuron-like characteristics. The SH-SY5Y line is genetically female with two X
SH-SY5Y
Inhibitory neurotransmitter in the mammalian brain
activation of a specific type of voltage dependent calcium channel. Medium spiny cells are a typical example of inhibitory central nervous system GABAergic
GABA
Type of artificial neural network
capsule is a set of neurons that collectively produce an activity vector with one element for each neuron to hold that neuron's instantiation value (e
Capsule_neural_network
Group of insects in the order Lepidoptera
Clock to Sun Compass Input in Monarch Butterfly Brain". Neuron. 46 (3): 457–467. doi:10.1016/j.neuron.2005.03.014. PMID 15882645. S2CID 17755509. Southwood
Butterfly
Species of passerine birds
Britain and Ireland, and as the European starling in North America, is a medium-sized passerine bird in the starling family, Sturnidae. It is about 20 cm
Common_starling
Amino acid
and retina. When glycine receptors are activated, chloride enters the neuron via the receptor, causing an inhibitory postsynaptic potential (IPSP). Strychnine
Glycine
Chemical compound
mediates the potentiation of N-methyl-D-aspartate responses in medium spiny striatal neurons". Neuroscience. 106 (3): 579–87. doi:10.1016/S0306-4522(01)00297-4
2-Methyl-6-(phenylethynyl)pyridine
2-Methyl-6-(phenylethynyl)pyridine
Dutch neuroscientist (born 1963)
"Direct physiological evidence for synaptic connectivity between medium-sized spiny neurons in rat nucleus accumbens in situ". J. Neurophysiol. 91 (3): 1111–1121
Cyriel_Pennartz
Examples of separate lineages of organisms developing similar characteristics
in the Early Cretaceous Period represents an even earlier example of a spiny mammal, unrelated to any modern mammal group. Catlike sabre-toothed predators
List of examples of convergent evolution
List_of_examples_of_convergent_evolution
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MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
MEDIUM SPINY-NEURON
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