journal
MENU ▼
Read by QxMD icon Read
search

Journal of Neuroscience: the Official Journal of the Society for Neuroscience

journal
https://www.readbyqxmd.com/read/29789381/wt1-expressing-interneurons-regulate-left-right-alternation-during-mammalian-locomotor-activity
#1
Farhia Haque, Vladimir Rancic, Wei Zhang, Robin Clugston, Klaus Ballanyi, Simon Gosgnach
The basic pattern of activity underlying stepping in mammals is generated by a neural network located in the caudal spinal cord. Within this network the specific circuitry coordinating left-right alternation has been shown to involve several groups of molecularly-defined interneurons. Here we characterize a population of spinal neurons that express the Wilms' Tumor 1 (WT1) gene and investigate their role during locomotor activity in mice of both sexes. We demonstrate that WT1-expressing cells are located in the ventromedial region of the spinal cord of mice and are also present in the human spinal cord...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789380/metaplasticity-in-the-visual-cortex-crosstalk-between-visual-experience-and-reactive-oxygen-species
#2
José Francis-Oliveira, Guilherme Shuigueto Vilar Higa, Lívia Mendonça Munhoz Dati, Ianê Carvalho Shieh, Roberto De Pasquale
Metaplasticity is the regulation of synaptic plasticity based on the history of previous synaptic activation. This concept was formulated after observing that synaptic changes in the visual cortex are not fixed, but dynamic, and dependent on the history of visual information flux. In visual cortical neurons, sustained synaptic stimulation activate the enzymatic complex NOX2, resulting in the generation of reactive oxygen species (ROS). NOX2 is the main molecular structure responsible for translating neural activity into redox modulation of intracellular signaling pathways involved in plastic changes...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789379/correlated-gene-expression-and-anatomical-communication-support-synchronized-brain-activity-in-the-mouse-functional-connectome
#3
Brian D Mills, David S Grayson, Anandakumar Shunmugavel, Oscar Miranda-Dominguez, Eric Feczko, Eric Earl, Kim Neve, Damien A Fair
Cognition and behavior depend on synchronized intrinsic brain activity that is organized into functional networks across the brain. Research has investigated how anatomical connectivity both shapes and is shaped by these networks, but not how anatomical connectivity interacts with intra-areal molecular properties to drive functional connectivity. Here, we present a novel linear model to explain functional connectivity by integrating systematically obtained measurements of axonal connectivity, gene expression, and resting state functional connectivity MRI in the mouse brain...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789378/subthalamic-nucleus-neurons-differentially-encode-early-and-late-aspects-of-speech-production
#4
W J Lipski, A Alhourani, T Pirnia, P W Jones, C Dastolfo-Hromack, L B Helou, D J Crammond, S Shaiman, M W Dickey, L L Holt, R S Turner, J A Fiez, R M Richardson
Basal ganglia-thalamocortical loops mediate all motor behavior, yet little detail is known about the role of basal ganglia nuclei in speech production. Using intracranial recording during deep brain stimulation surgery in humans with Parkinson's disease, we tested the hypothesis that the firing rate of subthalamic nucleus neurons is modulated in sync with motor execution aspects of speech. Nearly half of seventy-nine unit recordings exhibited firing rate modulation, during a syllable reading task across twelve subjects (male and female)...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789377/polyamine-modulation-of-anticonvulsant-drug-response-a-potential-mechanism-contributing-to-pharmacoresistance-in-chronic-epilepsy
#5
Niklas Michael Beckonert, Thoralf Opitz, Julika Pitsch, Patrício Soares da Silva, Heinz Beck
Despite the development of numerous novel anticonvulsant drugs, approximately 30% of epilepsy patients remain refractory to antiepileptic drugs (AEDs). Many established and novel AEDs reduce hyperexcitability via voltage- and use-dependent inhibition of voltage-gated Na+ channels. For the widely-used anticonvulsant carbamazepine (CBZ), use-dependent block of Na+ channels is significantly reduced both in experimental and human epilepsy. However, the molecular underpinnings of this potential cellular mechanism for pharmacoresistance have remained enigmatic...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789376/optogenetic-activation-of-colon-epithelium-of-the-mouse-produces-high-frequency-bursting-in-extrinsic-colon-afferents-and-engages-visceromotor-responses
#6
Payal A Makadia, Sarah A Najjar, Jami L Saloman, Peter Adelman, Bin Feng, Joseph F Margiotta, Kathryn M Albers, Brian M Davis
Epithelial cells of the colon provide a vital interface between the internal environment (lumen of the colon) and colon parenchyma. To examine epithelial-neuronal signaling at this interface, we analyzed mice in which channelrhodopsin (ChR2) was targeted to either TRPV1-positive afferents or to villin expressing colon epithelial cells. Expression of a ChR2-EYFP fusion protein was directed to either primary sensory neurons or to colon epithelial cells by crossing Ai32 mice with TRPV1-Cre or villin-Cre mice, respectively...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789375/neurotrophin-responsiveness-of-sympathetic-neurons-is-regulated-by-rapid-mobilization-of-the-p75-receptor-to-the-cell-surface-through-trka-activation-of-arf6
#7
F Edward Hickman, Emily M Stanley, Bruce D Carter
The p75 neurotrophin receptor (p75NTR) plays an integral role in patterning the sympathetic nervous system during development. Initially, p75NTR is expressed at low levels as sympathetic axons project toward their targets, which enables neurotrophin-3 (NT3) to activate TrkA receptors and promote growth. Upon reaching nerve growth factor (NGF) producing tissues, p75NTR is up regulated resulting in formation of TrkA-p75 complexes, which are high affinity binding sites selective for NGF, thereby blunting NT3 signaling...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789374/identification-and-characterization-of-a-novel-spontaneously-active-bursty-gabaergic-interneuron-in-the-mouse-striatum
#8
Maxime Assous, Thomas W Faust, Robert Assini, Fulva Shah, Yacouba Sidibe, James M Tepper
The recent availability of different transgenic mouse lines coupled with other modern molecular techniques has led to the discovery of an unexpectedly large cellular diversity and synaptic specificity in striatal interneuronal circuitry. Prior research has described three spontaneously active interneuron types in mouse striatal slices; the cholinergic interneuron, the neuropeptide Y-low threshold spike interneuron, and the tyrosine hydroxylase interneurons (THINs). Using transgenic Htr3a-Cre mice we now characterize a fourth population of spontaneously active striatal GABAergic interneurons termed spontaneously active bursty interneurons (SABI) because of their unique burst-firing pattern in cell-attached recordings...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29789373/voltage-gated-calcium-influx-modifies-cholinergic-inhibition-of-inner-hair-cells-in-the-immature-rat-cochlea
#9
Stephen Zachary, Nathaniel Nowak, Pankhuri Vyas, Luke Bonanni, Paul Albert Fuchs
Until postnatal day 12, inner hair cells of the rat cochlea are invested with both afferent and efferent synaptic connections. With the onset of hearing at P12, the efferent synapses disappear, and afferent (ribbon) synapses operate with greater efficiency. This change coincides with increased expression of voltage-gated potassium channels, the loss of calcium-dependent electrogenesis, and the onset of graded receptor potentials driven by sound. The transient efferent synapses include near-membrane postsynaptic cisterns thought to regulate calcium influx through the hair cell's α9α10-nAChR that activates small conductance Ca2+ -activated K+ (SK) channels...
May 22, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29773757/neural-signatures-of-the-processing-of-temporal-patterns-in-sound
#10
Björn Herrmann, Ingrid S Johnsrude
The ability to detect regularities in sound (i.e., recurring structure) is critical for effective perception, enabling, for example, change detection and prediction. Two seemingly unconnected lines of research concern the neural operations involved in processing regularities: one investigates how neural activity synchronizes with temporal regularities (e.g., frequency modulation; FM) in sounds, whereas the other focuses on increases in sustained activity during stimulation with repeating tone-frequency patterns...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29773756/mir126-5p-down-regulation-facilitates-axon-degeneration-and-nmj-disruption-via-a-non-cell-autonomous-mechanism-in-als
#11
Roy Maimon, Ariel Ionescu, Avichai Bonnie, Sahar Sweetat, Shane Wald-Altman, Shani Inbar, Tal Gradus, Davide Trotti, Miguel Weil, Oded Behar, Eran Perlson
Axon degeneration and disruption of neuromuscular junctions (NMJs) are key events in Amyotrophic Lateral Sclerosis (ALS) pathology. Although the disease's etiology is not fully understood, it is thought to involve a non-cell-autonomous mechanism and alterations in RNA metabolism. Here, we identified reduced levels of miR-126-5p in pre-symptomatic ALS male mice models, and an increase in its targets: axon destabilizing type-3 Semaphorins and their co-receptor Neuropilins. Utilizing compartmentalized in vitro co-cultures, we demonstrated that myocytes expressing diverse ALS-causing mutations promote axon degeneration and NMJ dysfunction, which were inhibited by applying Neuropilin1 (NRP1) blocking antibody...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29773755/expectations-do-not-alter-early-sensory-processing-during-perceptual-decision-making
#12
Nuttida Rungratsameetaweemana, Sirawaj Itthipuripat, Annalisa Salazar, John T Serences
Two factors play an important role in shaping perception: the allocation of selective attention to behaviorally relevant sensory features, and prior expectations about regularities in the environment. Signal detection theory proposes distinct roles of attention and expectation on decision-making such that attention modulates early sensory processing whereas expectation influences the selection and execution of motor responses. Challenging this classic framework, recent studies suggest that expectations about sensory regularities enhance the encoding and accumulation of sensory evidence during decision-making...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29773754/a-critical-neurodevelopmental-role-for-l-type-voltage-gated-calcium-channels-in-neurite-extension-and-radial-migration
#13
Satoshi Kamijo, Yuichiro Ishii, Shin-Ichiro Horigane, Kanzo Suzuki, Masamichi Ohkura, Junichi Nakai, Hajime Fujii, Sayaka Takemoto-Kimura, Haruhiko Bito
In spite of many association studies linking gene polymorphisms and mutations of L-type Voltage-Gated Ca2+ Channels (VGCC) in neurodevelopmental disorders, such as autism and schizophrenia, specific L-type VGCC roles during brain development remain unclear. Yet, calcium signaling has been shown to be essential for neurodevelopmental processes such as sculpting of neurites, functional wiring and fine tuning of growing networks. To bridge this gap, we performed submembraneous calcium imaging using a membrane-tethered genetically-encoded calcium indicator (GECI) Lck-G-CaMP7...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29769266/regulation-of-bdnf-release-by-arms-kidins220-through-modulation-of-synaptotagmin-iv-levels
#14
Saray López-Benito, Julia Sánchez-Sánchez, Verónica Brito, Laura Calvo, Silvia Lisa, María Torres-Valle, Mary E Palko, Cristina Vicente-García, Seila Fernández-Fernández, Juan P Bolaños, Silvia Ginés, Lino Tessarollo, Juan C Arévalo
BDNF is a growth factor with important roles in the nervous system in both physiological and pathological conditions, but the mechanisms controlling its secretion are not completely understood. Here, we show that ARMS/Kidins220 negatively regulates BDNF secretion in neurons from the central and peripheral nervous systems. Downregulation of the ARMS/Kidins220 protein in the adult mouse brain increases regulated BDNF secretion leading to its accumulation in the striatum. Interestingly, two mouse models of Huntington's disease (HD) showed increased levels of ARMS/Kidins220 in the hippocampus and regulated BDNF secretion deficits...
May 16, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29769265/reciprocal-negative-regulation-between-lmx1a-and-lmo4-is-required-for-inner-ear-formation
#15
Yanhan Huang, Jennifer Hill, Andrew Yatteau, Loksum Wong, Tao Jiang, Jelena Petrovic, Lin Gan, Lijin Dong, Doris K Wu
LIM-domain containing transcription factors (LIM-TFs) are conserved factors important for embryogenesis. The specificity of these factors in transcriptional regulation is conferred by the complexes they form with other proteins such as LIM-domain-binding (Ldb) proteins and LIM-domain only (LMO) proteins. Unlike LIM-TF, these proteins do not bind DNA directly. LMO are negative regulators of LIM-TF and they function by competing with LIM-TFs for binding to Ldbs. Although the LIM-TF Lmx1a is expressed in the developing mouse hindbrain, which provides many of the extrinsic signals for inner ear formation, conditional knockout embryos of both sexes show that the inner ear source of Lmx1a is the major contributor of ear patterning...
May 16, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29760184/structural-and-functional-rescue-of-chronic-metabolically-stressed-optic-nerves-through-respiration
#16
Mohammad Harun-Or-Rashid, Nate Pappenhagen, Peter G Palmer, Matthew A Smith, Victoria Gevorgyan, Gina N Wilson, Samuel D Crish, Denise M Inman
Axon degeneration can arise from metabolic stress, potentially a result of mitochondrial dysfunction or lack of appropriate substrate input. In this study, we investigated whether the metabolic vulnerability observed during optic neuropathy in the DBA/2J (D2) model of glaucoma is due to dysfunctional mitochondria or impaired substrate delivery to axons, the latter based on our observation of significantly decreased glucose and monocarboxylate transporters in D2 optic nerve (ON), human ON, and mice subjected to acute glaucoma injury...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29760183/neural-mechanisms-underlying-individual-differences-in-control-averse-behavior
#17
Sarah Rudorf, Katrin Schmelz, Thomas Baumgartner, Roland Wiest, Urs Fischbacher, Daria Knoch
When another person tries to control one's decisions, some people might comply, but many will feel the urge to act against that control. This control aversion can lead to suboptimal decisions and it affects social interactions in many societal domains. To date, however, it has been unclear what drives individual differences in control-averse behavior. Here, we address this issue by measuring brain activity with fMRI while healthy female and male human participants make choices that are either free or controlled by another person, with real consequences to both interaction partners...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29760182/alternating-modulation-of-subthalamic-nucleus-beta-oscillations-during-stepping
#18
Petra Fischer, Chiung Chu Chen, Ya Ju Chang, Chien-Hung Yeh, Alek Pogosyan, Damian M Herz, Binith Cheeran, Alexander L Green, Tipu Z Aziz, Jonathan Hyam, Simon Little, Thomas Foltynie, Patricia Limousin, Ludvic Zrinzo, Harutomo Hasegawa, Michael Samuel, Keyoumars Ashkan, Peter Brown, Huiling Tan
Gait disturbances in Parkinson's disease are commonly refractory to current treatment options and majorly impair patient's quality of life. Auditory cues facilitate gait and prevent motor blocks. We investigated how neural dynamics in the human subthalamic nucleus of Parkinsons's disease patients (14 male, 2 female) vary during stepping and whether rhythmic auditory cues enhance the observed modulation. Oscillations in the beta band were suppressed after ipsilateral heel strikes, when the contralateral foot had to be raised, and re-appeared after contralateral heel strikes, when the contralateral foot rested on the floor...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29760181/corticosterone-signaling-and-a-lateral-habenula-ventral-tegmental-area-circuit-modulate-compulsive-self-injurious-behavior-in-a-rat-model
#19
Yujie Guo, Xun Tang, Jichuan Zhang, Sen Jin, Jinnan Li, Lufeng Ding, Keming Zhang, Chaoyu Yang, Hua Zhou, Xiaobin He, Fuqiang Xu, Guo-Qiang Bi, Lin Xu, Pak-Ming Lau
Self-injurious behavior (SIB) is commonly observed in patients with neuropsychiatric disorders, as well as nonclinical populations with stress related mental health problems. However, the exact circuitry mechanisms underlying SIB have remained unclear. Here we established a rat model of SIB with bilateral injection of muscimol into entopeduncular nucleus (EP). Following the muscimol injection, the male rats exhibited stereotypic self-biting behavior that lasted for hours and often resulted in wounds of various severities, in a dose-dependent manner...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29760180/the-affective-and-neural-correlates-of-heroin-vs-cocaine-use-in-addiction-are-influenced-by-environmental-setting-but-in-opposite-directions
#20
Silvana De Pirro, Gaspare Galati, Luigi Pizzamiglio, Aldo Badiani
Previous studies have shown that individuals with heroin and cocaine addiction prefer to use these drugs in distinct settings: mostly at home in the case of heroin and mostly outside the home in the case of cocaine. Here we investigated whether the context would modulate the affective and neural responses to these drugs in a similar way. First, we used a novel emotional task to assess the affective state produced by heroin or cocaine in different settings, based on the recollections of male and female drug users...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
journal
journal
28119
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"