Neuroscience

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    Protocols in Current Issue
    High Throughput Blood-brain Barrier Organoid Generation and Assessment of Receptor-Mediated Antibody Transcytosis
    Authors:  Elena Kassianidou, Claire Simonneau, Alina Gavrilov and Roberto Villaseñor, date: 04/20/2022, view: 547, Q&A: 0
    [Abstract]

    Targeting receptor-mediated transcytosis (RMT) is a successful strategy for drug delivery of biologic agents across the blood-brain barrier (BBB). The recent development of human BBB organoid models is a major advancement to help characterize the mechanisms of RMT and thus accelerate the design of brain delivery technologies. BBB organoids exhibit

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    Multiplexing Thermotaxis Behavior Measurement in Caenorhabditis elegans
    Authors:  Stephan Raiders, Mason Klein and Aakanksha Singhvi, date: 04/05/2022, view: 702, Q&A: 0
    [Abstract]

    Thermotaxis behaviors in C. elegans exhibit experience-dependent plasticity of thermal preference memory. This behavior can be assayed either at population level, on linear temperature gradients, or at the individual animal level, by radial isothermal or microfluidic tracking of orientation. These behaviors are low-throughput as well as

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    Optogenetic Targeting of Mouse Vagal Afferents Using an Organ-specific, Scalable, Wireless Optoelectronic Device
    [Abstract]

    Optogenetics has the potential to transform the study of the peripheral nervous system (PNS), but the complex anatomy of the PNS poses unique challenges for the focused delivery of light to specific tissues. This protocol describes the fabrication of a wireless telemetry system for studying peripheral sensory pathways. Unlike existing wireless

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    An in vitro Blood-brain Barrier Model to Study the Penetration of Nanoparticles
    Authors:  Sezin Aday, Wen Li, Jeffrey M. Karp and Nitin Joshi, date: 02/20/2022, view: 2558, Q&A: 0
    [Abstract]

    The blood-brain barrier (BBB), a crucial protection mechanism in the central nervous system (CNS), is a selective barrier comprised of endothelial cells. It hampers the development of therapeutic and diagnostic tools for neurological diseases due to the poor penetration of most of these agents. Rationally engineered nanoparticles (NP) can

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    Large-scale Analysis of Sleep in Zebrafish
    Authors:  Daniel A. Lee, Grigorios Oikonomou and David A. Prober, date: 02/05/2022, view: 1466, Q&A: 0
    [Abstract]

    Over the past decade, zebrafish have emerged as a powerful model for the study of vertebrate sleep and wake behaviors. Experimental evidence has demonstrated behavioral, anatomical, genetic, and pharmacological conservation of sleep between zebrafish and mammals, suggesting that discoveries in zebrafish can inform our understanding of mammalian

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    Subcellular RNA-seq for the Analysis of the Dendritic and Somatic Transcriptomes of Single Neurons
    Authors:  Julio D. Perez and Erin M. Schuman, date: 01/05/2022, view: 1375, Q&A: 0
    [Abstract]

    In neurons, local translation in dendritic and axonal compartments allows for the fast and on-demand modification of the local proteome. As the last few years have witnessed dramatic advancements in our appreciation of the brain’s neuronal diversity, it is increasingly relevant to understand how local translation is regulated according to

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    Delivery of AAV for Expression of Fluorescent Biosensors in Juvenile Mouse Hippocampus
    [Abstract]

    Genetically encoded fluorescent biosensors are versatile tools for studying brain metabolism and function in live tissue. The genetic information for these biosensors can be delivered into the brain by stereotaxic injection of engineered adeno-associated viruses (AAVs), which can selectively target different cell types depending on the capsid

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    Conditional Gene Editing in Presynaptic Extinction-ensemble Cells via the CRISPR-SaCas9 System
    Authors:  Haojie Sun, Ming Yi and You Wan, date: 12/05/2021, view: 916, Q&A: 0
    [Abstract]

    The CRISPR-Cas9 enables efficient gene editing in various cell types, including post-mitotic neurons. However, neuronal ensembles in the same brain region can still be functionally or anatomically different, and such heterogeneity requires gene editing in specific neuronal populations. We recently developed a CRISPR-SaCas9 system-based technique.

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    Pericyte Mapping in Cerebral Slices with the Far-red Fluorophore TO-PRO-3
    [Abstract]

    This protocol describes a method for high-resolution confocal imaging of pericytes with the far-red fluorophore TO-PROTM-3 Iodide 642/661 in cerebral slices of murine. Identification of pericytes with TO-PRO-3 is a short time-consuming, high cost-effective and robust technique to label pericytes with no need for immunostaining or generation of

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    3D-printed Recoverable Microdrive and Base Plate System for Rodent Electrophysiology
    [Abstract]

    Extracellular recordings in freely moving animals allow the monitoring of brain activity from populations of neurons at single-spike temporal resolution. While state-of-the-art electrophysiological recording devices have been developed in recent years (e.g., µLED and Neuropixels silicon probes), implantation methods for silicon probes in

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