keyword
MENU ▼
Read by QxMD icon Read
search

Deisseroth

keyword
https://www.readbyqxmd.com/read/29712920/development-of-an-optogenetic-toolkit-for-neural-circuit-dissection-in-squirrel-monkeys
#1
Daniel J O'Shea, Paul Kalanithi, Emily A Ferenczi, Brian Hsueh, Chandramouli Chandrasekaran, Werapong Goo, Ilka Diester, Charu Ramakrishnan, Matthew T Kaufman, Stephen I Ryu, Kristen W Yeom, Karl Deisseroth, Krishna V Shenoy
Optogenetic tools have opened a rich experimental landscape for understanding neural function and disease. Here, we present the first validation of eight optogenetic constructs driven by recombinant adeno-associated virus (AAV) vectors and a WGA-Cre based dual injection strategy for projection targeting in a widely-used New World primate model, the common squirrel monkey Saimiri sciureus. We observed opsin expression around the local injection site and in axonal projections to downstream regions, as well as transduction to thalamic neurons, resembling expression patterns observed in macaques...
April 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29686073/neuronal-activity-regulates-neurotransmitter-switching-in-the-adult-brain-following-light-induced-stress
#2
Da Meng, Hui-Quan Li, Karl Deisseroth, Stefan Leutgeb, Nicholas C Spitzer
Neurotransmitter switching in the adult mammalian brain occurs following photoperiod-induced stress, but the mechanism of regulation is unknown. Here, we demonstrate that elevated activity of dopaminergic neurons in the paraventricular nucleus of the hypothalamus (PaVN) in the adult rat is required for the loss of dopamine expression after long-day photoperiod exposure. The transmitter switch occurs exclusively in PaVN dopaminergic neurons that coexpress vesicular glutamate transporter 2 (VGLUT2), is accompanied by a loss of dopamine type 2 receptors (D2Rs) on corticotrophin-releasing factor (CRF) neurons, and can lead to increased release of CRF...
April 23, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29681476/phasic-dopamine-signals-in-the-nucleus-accumbens-that-cause-active-avoidance-require-endocannabinoid-mobilization-in-the-midbrain
#3
Jennifer M Wenzel, Erik B Oleson, Willard N Gove, Anthony B Cole, Utsav Gyawali, Hannah M Dantrassy, Rebecca J Bluett, Dilyan I Dryanovski, Garret D Stuber, Karl Deisseroth, Brian N Mathur, Sachin Patel, Carl R Lupica, Joseph F Cheer
Phasic dopamine (DA) release accompanies approach toward appetitive cues. However, a role for DA in the active avoidance of negative events remains undetermined. Warning signals informing footshock avoidance are associated with accumbal DA release, whereas depression of DA is observed with unavoidable footshock. Here, we reveal a causal role of phasic DA in active avoidance learning; specifically, optogenetic activation of DA neurons facilitates avoidance, whereas optical inhibition of these cells attenuates it...
April 16, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29502969/brain-wide-electrical-spatiotemporal-dynamics-encode-depression-vulnerability
#4
Rainbo Hultman, Kyle Ulrich, Benjamin D Sachs, Cameron Blount, David E Carlson, Nkemdilim Ndubuizu, Rosemary C Bagot, Eric M Parise, Mai-Anh T Vu, Neil M Gallagher, Joyce Wang, Alcino J Silva, Karl Deisseroth, Stephen D Mague, Marc G Caron, Eric J Nestler, Lawrence Carin, Kafui Dzirasa
Brain-wide fluctuations in local field potential oscillations reflect emergent network-level signals that mediate behavior. Cracking the code whereby these oscillations coordinate in time and space (spatiotemporal dynamics) to represent complex behaviors would provide fundamental insights into how the brain signals emotional pathology. Using machine learning, we discover a spatiotemporal dynamic network that predicts the emergence of major depressive disorder (MDD)-related behavioral dysfunction in mice subjected to chronic social defeat stress...
March 22, 2018: Cell
https://www.readbyqxmd.com/read/29489747/hierarchical-neural-architecture-underlying-thirst-regulation
#5
Vineet Augustine, Sertan Kutal Gokce, Sangjun Lee, Bo Wang, Thomas J Davidson, Frank Reimann, Fiona Gribble, Karl Deisseroth, Carlos Lois, Yuki Oka
Neural circuits for appetites are regulated by both homeostatic perturbations and ingestive behaviour. However, the circuit organization that integrates these internal and external stimuli is unclear. Here we show in mice that excitatory neural populations in the lamina terminalis form a hierarchical circuit architecture to regulate thirst. Among them, nitric oxide synthase-expressing neurons in the median preoptic nucleus (MnPO) are essential for the integration of signals from the thirst-driving neurons of the subfornical organ (SFO)...
March 8, 2018: Nature
https://www.readbyqxmd.com/read/29392707/quantitative-relationship-between-auec-of-absolute-neutrophil-count-and-duration-of-severe-neutropenia-for-g-csf-in-breast-cancer-patients
#6
Liang Li, Lian Ma, Sarah J Schrieber, Nam Atiqur Rahman, Albert Deisseroth, Ann T Farrell, Yaning Wang, Vikram Sinha, Anshu Marathe
The aim of the study was to evaluate the quantitative relationship between duration of severe neutropenia (DSN, the efficacy endpoint) and area under effect curve of absolute neutrophil counts (ANC-AUEC, the pharmacodynamic endpoint), based on data from filgrastim products, a human granulocyte colony-stimulating factor (G-CSF). Clinical data from filgrastim product comparator and test arms of two randomized, parallel-group, phase III studies in breast cancer patients treated with myelosuppressive chemotherapy were utilized...
February 2, 2018: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29243106/quantitative-validation-of-immunofluorescence-and-lectin-staining-using-reduced-clarity-acrylamide-formulations
#7
D M Krolewski, V Kumar, B Martin, R Tomer, K Deisseroth, R M Myers, A F Schatzberg, F S Lee, J D Barchas, W E Bunney, H Akil, S J Watson
The CLARITY technique enables three-dimensional visualization of fluorescent-labeled biomolecules in clarified intact brain samples, affording a unique view of molecular neuroanatomy and neurocircuitry. It is therefore, essential to find the ideal combination for clearing tissue and detecting the fluorescent-labeled signal. This method requires the formation of a formaldehyde-acrylamide fixative-generated hydrogel mesh through which cellular lipid is removed with sodium dodecyl sulfate. Several laboratories have used differential acrylamide and detergent concentrations to achieve better tissue clearing and antibody penetration, but the potential effects upon fluorescent signal retention is largely unknown...
March 2018: Brain Structure & Function
https://www.readbyqxmd.com/read/29203898/an-interactive-framework-for-whole-brain-maps-at-cellular-resolution
#8
Daniel Fürth, Thomas Vaissière, Ourania Tzortzi, Yang Xuan, Antje Märtin, Iakovos Lazaridis, Giada Spigolon, Gilberto Fisone, Raju Tomer, Karl Deisseroth, Marie Carlén, Courtney A Miller, Gavin Rumbaugh, Konstantinos Meletis
To deconstruct the architecture and function of brain circuits, it is necessary to generate maps of neuronal connectivity and activity on a whole-brain scale. New methods now enable large-scale mapping of the mouse brain at cellular and subcellular resolution. We developed a framework to automatically annotate, analyze, visualize and easily share whole-brain data at cellular resolution, based on a scale-invariant, interactive mouse brain atlas. This framework enables connectivity and mapping projects in individual laboratories and across imaging platforms, as well as multiplexed quantitative information on the molecular identity of single neurons...
January 2018: Nature Neuroscience
https://www.readbyqxmd.com/read/29184202/the-central-amygdala-controls-learning-in-the-lateral-amygdala
#9
Kai Yu, Sandra Ahrens, Xian Zhang, Hillary Schiff, Charu Ramakrishnan, Lief Fenno, Karl Deisseroth, Fei Zhao, Min-Hua Luo, Ling Gong, Miao He, Pengcheng Zhou, Liam Paninski, Bo Li
Experience-driven synaptic plasticity in the lateral amygdala is thought to underlie the formation of associations between sensory stimuli and an ensuing threat. However, how the central amygdala participates in such a learning process remains unclear. Here we show that PKC-δ-expressing central amygdala neurons are essential for the synaptic plasticity underlying learning in the lateral amygdala, as they convey information about the unconditioned stimulus to lateral amygdala neurons during fear conditioning...
December 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/29183979/vasopressin-excites-interneurons-to-suppress-hippocampal-network-activity-across-a-broad-span-of-brain-maturity-at-birth
#10
Albert Spoljaric, Patricia Seja, Inkeri Spoljaric, Mari A Virtanen, Jenna Lindfors, Pavel Uvarov, Milla Summanen, Ailey K Crow, Brian Hsueh, Martin Puskarjov, Eva Ruusuvuori, Juha Voipio, Karl Deisseroth, Kai Kaila
During birth in mammals, a pronounced surge of fetal peripheral stress hormones takes place to promote survival in the transition to the extrauterine environment. However, it is not known whether the hormonal signaling involves central pathways with direct protective effects on the perinatal brain. Here, we show that arginine vasopressin specifically activates interneurons to suppress spontaneous network events in the perinatal hippocampus. Experiments done on the altricial rat and precocial guinea pig neonate demonstrated that the effect of vasopressin is not dependent on the level of maturation (depolarizing vs...
December 12, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29103613/ancestral-circuits-for-the-coordinated-modulation-of-brain-state
#11
Matthew Lovett-Barron, Aaron S Andalman, William E Allen, Sam Vesuna, Isaac Kauvar, Vanessa M Burns, Karl Deisseroth
Internal states of the brain profoundly influence behavior. Fluctuating states such as alertness can be governed by neuromodulation, but the underlying mechanisms and cell types involved are not fully understood. We developed a method to globally screen for cell types involved in behavior by integrating brain-wide activity imaging with high-content molecular phenotyping and volume registration at cellular resolution. We used this method (MultiMAP) to record from 22 neuromodulatory cell types in behaving zebrafish during a reaction-time task that reports alertness...
November 30, 2017: Cell
https://www.readbyqxmd.com/read/29100013/long-range-gabaergic-inputs-regulate-neural-stem-cell-quiescence-and-control-adult-hippocampal-neurogenesis
#12
Hechen Bao, Brent Asrican, Weidong Li, Bin Gu, Zhexing Wen, Szu-Aun Lim, Issac Haniff, Charu Ramakrishnan, Karl Deisseroth, Benjamin Philpot, Juan Song
The quiescence of adult neural stem cells (NSCs) is regulated by local parvalbumin (PV) interneurons within the dentate gyrus (DG). Little is known about how local PV interneurons communicate with distal brain regions to regulate NSCs and hippocampal neurogenesis. Here, we identify GABAergic projection neurons from the medial septum (MS) as the major afferents to dentate PV interneurons. Surprisingly, dentate PV interneurons are depolarized by GABA signaling, which is in sharp contrast to most mature neurons hyperpolarized by GABA...
November 2, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28963257/gating-of-social-reward-by-oxytocin-in-the-ventral-tegmental-area
#13
Lin W Hung, Sophie Neuner, Jai S Polepalli, Kevin T Beier, Matthew Wright, Jessica J Walsh, Eastman M Lewis, Liqun Luo, Karl Deisseroth, Gül Dölen, Robert C Malenka
The reward generated by social interactions is critical for promoting prosocial behaviors. Here we present evidence that oxytocin (OXT) release in the ventral tegmental area (VTA), a key node of the brain's reward circuitry, is necessary to elicit social reward. During social interactions, activity in paraventricular nucleus (PVN) OXT neurons increased. Direct activation of these neurons in the PVN or their terminals in the VTA enhanced prosocial behaviors. Conversely, inhibition of PVN OXT axon terminals in the VTA decreased social interactions...
September 29, 2017: Science
https://www.readbyqxmd.com/read/28920933/modular-organization-of-the-brainstem-noradrenaline-system-coordinates-opposing-learning-states
#14
Akira Uematsu, Bao Zhen Tan, Edgar A Ycu, Jessica Sulkes Cuevas, Jenny Koivumaa, Felix Junyent, Eric J Kremer, Ilana B Witten, Karl Deisseroth, Joshua P Johansen
Noradrenaline modulates global brain states and diverse behaviors through what is traditionally believed to be a homogeneous cell population in the brainstem locus coeruleus (LC). However, it is unclear how LC coordinates disparate behavioral functions. We report a modular LC organization in rats, endowed with distinct neural projection patterns and coding properties for flexible specification of opposing behavioral learning states. LC projection mapping revealed functionally distinct cell modules with specific anatomical connectivity...
November 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28912243/thirst-associated-preoptic-neurons-encode-an-aversive-motivational-drive
#15
William E Allen, Laura A DeNardo, Michael Z Chen, Cindy D Liu, Kyle M Loh, Lief E Fenno, Charu Ramakrishnan, Karl Deisseroth, Liqun Luo
Water deprivation produces a drive to seek and consume water. How neural activity creates this motivation remains poorly understood. We used activity-dependent genetic labeling to characterize neurons activated by water deprivation in the hypothalamic median preoptic nucleus (MnPO). Single-cell transcriptional profiling revealed that dehydration-activated MnPO neurons consist of a single excitatory cell type. After optogenetic activation of these neurons, mice drank water and performed an operant lever-pressing task for water reward with rates that scaled with stimulation frequency...
September 15, 2017: Science
https://www.readbyqxmd.com/read/28912215/the-form-and-function-of-channelrhodopsin
#16
REVIEW
Karl Deisseroth, Peter Hegemann
Channelrhodopsins are light-gated ion channels that, via regulation of flagellar function, enable single-celled motile algae to seek ambient light conditions suitable for photosynthesis and survival. These plant behavioral responses were initially investigated more than 150 years ago. Recently, major principles of function for light-gated ion channels have been elucidated by creating channelrhodopsins with kinetics that are accelerated or slowed over orders of magnitude, by discovering and designing channelrhodopsins with altered spectral properties, by solving the high-resolution channelrhodopsin crystal structure, and by structural model-guided redesign of channelrhodopsins for altered ion selectivity...
September 15, 2017: Science
https://www.readbyqxmd.com/read/28902833/rabies-screen-reveals-gpe-control-of-cocaine-triggered-plasticity
#17
Kevin T Beier, Christina K Kim, Paul Hoerbelt, Lin Wai Hung, Boris D Heifets, Katherine E DeLoach, Timothy J Mosca, Sophie Neuner, Karl Deisseroth, Liqun Luo, Robert C Malenka
Identification of neural circuit changes that contribute to behavioural plasticity has routinely been conducted on candidate circuits that were preselected on the basis of previous results. Here we present an unbiased method for identifying experience-triggered circuit-level changes in neuronal ensembles in mice. Using rabies virus monosynaptic tracing, we mapped cocaine-induced global changes in inputs onto neurons in the ventral tegmental area. Cocaine increased rabies-labelled inputs from the globus pallidus externus (GPe), a basal ganglia nucleus not previously known to participate in behavioural plasticity triggered by drugs of abuse...
September 21, 2017: Nature
https://www.readbyqxmd.com/read/28898248/place-field-assembly-distribution-encodes-preferred-locations
#18
Omar Mamad, Lars Stumpp, Harold M McNamara, Charu Ramakrishnan, Karl Deisseroth, Richard B Reilly, Marian Tsanov
The hippocampus is the main locus of episodic memory formation and the neurons there encode the spatial map of the environment. Hippocampal place cells represent location, but their role in the learning of preferential location remains unclear. The hippocampus may encode locations independently from the stimuli and events that are associated with these locations. We have discovered a unique population code for the experience-dependent value of the context. The degree of reward-driven navigation preference highly correlates with the spatial distribution of the place fields recorded in the CA1 region of the hippocampus...
September 2017: PLoS Biology
https://www.readbyqxmd.com/read/28893946/a-radial-axis-defined-by-semaphorin-to-neuropilin-signaling-controls-pancreatic-islet-morphogenesis
#19
Philip T Pauerstein, Krissie Tellez, Kirk B Willmarth, Keon Min Park, Brian Hsueh, H Efsun Arda, Xueying Gu, Haig Aghajanian, Karl Deisseroth, Jonathan A Epstein, Seung K Kim
The islets of Langerhans are endocrine organs characteristically dispersed throughout the pancreas. During development, endocrine progenitors delaminate, migrate radially and cluster to form islets. Despite the distinctive distribution of islets, spatially localized signals that control islet morphogenesis have not been discovered. Here, we identify a radial signaling axis that instructs developing islet cells to disperse throughout the pancreas. A screen of pancreatic extracellular signals identified factors that stimulated islet cell development...
October 15, 2017: Development
https://www.readbyqxmd.com/read/28817803/developmental-dysfunction-of-vip-interneurons-impairs-cortical-circuits
#20
Renata Batista-Brito, Martin Vinck, Katie A Ferguson, Jeremy T Chang, David Laubender, Gyorgy Lur, James M Mossner, Victoria G Hernandez, Charu Ramakrishnan, Karl Deisseroth, Michael J Higley, Jessica A Cardin
GABAergic interneurons play important roles in cortical circuit development. However, there are multiple populations of interneurons and their respective developmental contributions remain poorly explored. Neuregulin 1 (NRG1) and its interneuron-specific receptor ERBB4 are critical genes for interneuron maturation. Using a conditional ErbB4 deletion, we tested the role of vasoactive intestinal peptide (VIP)-expressing interneurons in the postnatal maturation of cortical circuits in vivo. ErbB4 removal from VIP interneurons during development leads to changes in their activity, along with severe dysregulation of cortical temporal organization and state dependence...
August 16, 2017: Neuron
keyword
keyword
14682
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"