1,646 results found
    1. Neuroscience

    A spiral attractor network drives rhythmic locomotion

    Angela M Bruno, William N Frost, Mark D Humphries
    The neural population of the Aplysia's pedal ganglion are a low-dimensional spiral attractor, and the parameters of the attractor directly define the properties of the Aplysia's escape locomotion behaviour.
    1. Neuroscience

    A double-sided microscope to realize whole-ganglion imaging of membrane potential in the medicinal leech

    Yusuke Tomina, Daniel A Wagenaar
    For the first time, action potentials and subthreshold postsynaptic potentials of almost all individual identifiable neurons within a functional unit of the leech nervous system were simultaneously imaged during sensory processing and behavioral generation.
    1. Cell Biology

    Simultaneous recording of multiple cellular signaling events by frequency- and spectrally-tuned multiplexing of fluorescent probes

    Michelina Kierzek, Parker E Deal ... Christoph Brenker
    FASTM is a novel technique that leverages phase-sensitive signal detection for time-resolved multiplexing of probes with millisecond time resolution, opening new opportunities for interrogating rapid cellular signaling and (bio)chemical reactions.
    1. Neuroscience

    Anatomy and activity patterns in a multifunctional motor neuron and its surrounding circuits

    Mária Ashaber, Yusuke Tomina ... Daniel A Wagenaar
    Voltage-dye imaging followed by serial blockface electron microscopy of the same ganglion reveals structure–function relationships of leech motor behaviors.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Optical estimation of absolute membrane potential using fluorescence lifetime imaging

    Julia R Lazzari-Dean, Anneliese MM Gest, Evan W Miller
    Fluorescence lifetime imaging microscopy, paired with fluorescent, voltage-sensitive dyes, provides a method for measuring and quantifying membrane potentials of living cells.
    1. Structural Biology and Molecular Biophysics

    High temperature sensitivity is intrinsic to voltage-gated potassium channels

    Fan Yang, Jie Zheng
    Highly temperature-sensitive behavior of voltage-gated potassium channels provides a mechanistic model for how heat-activated TRP channels serve as temperature and pain sensors.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Single-molecule fluorimetry and gating currents inspire an improved optical voltage indicator

    Jeremy S Treger, Michael F Priest, Francisco Bezanilla
    ArcLight, a popular optogenetic reporter of voltage, is studied at both single-molecule and macroscopic levels, which leads to new mechanistic understanding and to the rational design of a faster reporter.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Mechanosensitive pore opening of a prokaryotic voltage-gated sodium channel

    Peter R Strege, Luke M Cowan ... Arthur Beyder
    Force applied to the cell membrane reversibly changes a voltage-insensitive gating step of a prokaryotic voltage-gated sodium channel.
    1. Neuroscience

    Differential interaction patterns of opioid analgesics with µ opioid receptors correlate with ligand-specific voltage sensitivity

    Sina B Kirchhofer, Victor Jun Yu Lim ... Moritz Bünemann
    The molecular pattern underlying the interactions of opioids with their receptor determines whether membrane depolarization increases or decreases their response or even convert antagonists to agonists.
    1. Neuroscience

    Optical electrophysiology for probing function and pharmacology of voltage-gated ion channels

    Hongkang Zhang, Elaine Reichert, Adam E Cohen
    Optogenetic tools enable sophisticated measurements of a voltage-gated sodium channel implicated in pain, as well as high-throughput screening of candidate channel blockers.

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