Neuroscience

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    Protocols in Current Issue
    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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    Isolation of Nuclei from Mouse Dorsal Root Ganglia for Single-nucleus Genomics
    Authors:  Lite Yang, Ivan Tochitsky, Clifford J. Woolf and William Renthal, date: 08/05/2021, view: 662, Q&A: 0
    [Abstract]

    Primary somatosensory neurons, whose cell bodies reside in the dorsal root ganglion (DRG) and trigeminal ganglion, are specialized to transmit sensory information from the periphery to the central nervous system. Our molecular understanding of peripheral sensory neurons has been limited by both their heterogeneity and low abundance compared with

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    CRISPR-mediated Labeling of Cells in Chick Embryos Based on Selectively Expressed Genes
    Authors:  Masahito Yamagata and Joshua R. Sanes, date: 08/05/2021, view: 1190, Q&A: 0
    [Abstract]

    The abilities to mark and manipulate specific cell types are essential for an increasing number of functional, structural, molecular, and developmental analyses in model organisms. In a few species, this can be accomplished by germline transgenesis; in other species, other methods are needed to selectively label somatic cells based on the genes

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    Cell-attached and Whole-cell Patch-clamp Recordings of Dopamine Neurons in the Substantia Nigra Pars Compacta of Mouse Brain Slices
    Authors:  Stefano Cattaneo, Maria Regoni, Jenny Sassone and Stefano Taverna, date: 08/05/2021, view: 745, Q&A: 0
    [Abstract]

    The Substantia Nigra pars compacta (SNc) is a midbrain dopaminergic nucleus that plays a key role in modulating motor and cognitive functions. It is crucially involved in several disorders, particularly Parkinson’s disease, which is characterized by a progressive loss of SNc dopaminergic cells. Electrophysiological studies on SNc neurons are

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    Method for Rapid Enzymatic Cleaning for Reuse of Patch Clamp Pipettes: Increasing Throughput by Eliminating Manual Pipette Replacement between Patch Clamp Attempts
    [Abstract]

    The whole-cell patch-clamp method is a gold standard for single-cell analysis of electrical activity, cellular morphology, and gene expression. Prior to our discovery that patch-clamp pipettes could be cleaned and reused, experimental throughput and automation were limited by the need to replace pipettes manually after each experiment. This

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    Electrophysiological Properties of Neurons: Current-Clamp Recordings in Mouse Brain Slices and Firing-Pattern Analysis
    Authors:  Elina Nagaeva, Ivan Zubarev and Esa R. Korpi, date: 06/20/2021, view: 1428, Q&A: 0
    [Abstract]

    Characterization of an electrically active cell, such as a neuron, demands measurement of its electrical properties. Due to differences in gene activation, location, innervation patterns, and functions, the millions of neurons in the mammalian brain are tremendously diverse in their membrane characteristics and abilities to generate action

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    Mechanical Fractionation of Cultured Neuronal Cells into Cell Body and Neurite Fractions
    Authors:  Ankita Arora, Raeann Goering, Hei-Yong G. Lo and J. Matthew Taliaferro, date: 06/05/2021, view: 1658, Q&A: 0
    [Abstract]

    Many cells contain spatially defined subcellular regions that perform specialized tasks enabled by localized proteins. The subcellular distribution of these localized proteins is often facilitated by the subcellular localization of the RNA molecules that encode them. A key question in the study of this process of RNA localization is the

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    Generation and Maintenance of Homogeneous Human Midbrain Organoids
    Authors:  Henrik Renner, Martha Grabos, Hans R. Schöler and Jan M. Bruder, date: 06/05/2021, view: 2046, Q&A: 0
    [Abstract]

    Three-dimensional cell cultures (“organoids”) promise to better recapitulate native tissue physiology than traditional 2D cultures and are becoming increasingly interesting for disease modeling and compound screening efforts. While a number of protocols for the generation of neural organoids have been published, most protocols require

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    Single-Molecule Studies of Membrane Receptors from Brain Region Specific Nanovesicles
    Authors:  Surya P. Aryal, Xu Fu, Abdullah A. Masud, Khaga R. Neupane and Christopher I. Richards, date: 05/20/2021, view: 2130, Q&A: 0
    [Abstract]

    Single molecule imaging and spectroscopy are powerful techniques for the study of a wide range of biological processes including protein assembly and trafficking. However, in vivo single molecule imaging of biomolecules has been challenging because of difficulties associated with sample preparation and technical challenges associated with

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    Transfection and Activation of CofActor, a Light and Stress Gated Optogenetic Tool, in Primary Hippocampal Neuron Cultures
    Authors:  Wyatt P. Bunner, Rachel Dodson, Robert M. Hughes and Erzsebet M. Szatmari, date: 04/20/2021, view: 1045, Q&A: 0
    [Abstract]

    Proteins involved in neurodegeneration can be coupled with optogenetic reagents to create rapid and sensitive reporters to provide insight into the biochemical processes that mediate the progression of neurodegenerative disorders, including Alzheimer’s Disease (AD). We have recently developed a novel optically-responsive tool (the

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