211 results found
    1. Cell Biology

    An adaptation of astronomical image processing enables characterization and functional 3D mapping of individual sites of excitation-contraction coupling in rat cardiac muscle

    Qinghai Tian, Lars Kaestner ... Peter Lipp
    The fusion of astronomy and cellular cardiology reveals the 3D arrangement and the firing reliability of active excitation-contraction coupling sites in beating cardiac myocytes.
    1. Medicine
    2. Neuroscience

    The role of action potential changes in depolarization-induced failure of excitation contraction coupling in mouse skeletal muscle

    Xueyong Wang, Murad Nawaz ... Mark M Rich
    Detailed studies of excitation contraction coupling allowed determination of quantitative relationships between resting potential, generation of action potentials, conduction of action potentials, and generation of Ca2+ transients in individual mouse skeletal muscle fibers.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Role of oxidation of excitation-contraction coupling machinery in age-dependent loss of muscle function in Caenorhabditis elegans

    Haikel Dridi, Frances Forrester ... Andrew Marks
    The Ryanodine receptor type 1 calcium channels play a critical role in age-related muscle function loss.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Fundamental constraints in synchronous muscle limit superfast motor control in vertebrates

    Andrew F Mead, Nerea Osinalde ... Coen PH Elemans
    Vertebrate superfast muscles employ similar excitation–contraction strategies but distinct myosin heavy chain genes to allow superfast performance, revealing a maximum speed that cannot be overcome without sacrificing neural control.
    1. Cell Biology

    Lipid hydroperoxides promote sarcopenia through carbonyl stress

    Hiroaki Eshima, Justin L Shahtout ... Katsuhiko Funai
    Genetic or pharmacological suppression of lipid peroxidation pathway protects skeletal muscle from disuse-induced atrophy and weakness in young and old mice.
    1. Medicine

    Identification of drug modifiers for RYR1-related myopathy using a multi-species discovery pipeline

    Jonathan R Volpatti, Yukari Endo ... James J Dowling
    A multi-species chemical screening platform reveals a conserved role for p38 inhibition in modulating ryanodine receptor-related phenotypes and is adaptable to a range of neuromuscular disorders.
    1. Computational and Systems Biology
    2. Neuroscience

    Integrative neuromechanics of crawling in D. melanogaster larvae

    Cengiz Pehlevan, Paolo Paoletti, L Mahadevan
    An integrative model of coordinated crawling in fruit fly maggots links neuromuscular dynamics to body-substrate mechanics in the presence of proprioceptive feedback.
    1. Genetics and Genomics

    Quantitative proteomic analysis of skeletal muscles from wild-type and transgenic mice carrying recessive Ryr1 mutations linked to congenital myopathies

    Jan Eckhardt, Alexis Ruiz ... Francesco Zorzato
    Quantitative proteomic analysis shows that recessive Ryr1 mutations not only decrease the content of RyR1 protein in muscle, but also affect the content of many other proteins involved in a variety of biological processes.
    1. Cell Biology

    Septin 7 interacts with Numb to preserve sarcomere structural organization and muscle contractile function

    Rita De Gasperi, Laszlo Csernoch ... Christopher P Cardozo
    Genetic reduction of Numb or Numb/Nubl is linked to deterioration of the Septin cytoskeleton and suggests cytoskeletal abnormalities are the consequences of and contribute to age-related changes in skeletal muscle.
    1. Structural Biology and Molecular Biophysics

    Pore mutation N617D in the skeletal muscle DHPR blocks Ca2+ influx due to atypical high-affinity Ca2+ binding

    Anamika Dayal, Monica L Fernández-Quintero ... Manfred Grabner
    Characterization of Ca2+ selectivity and non-conductance mechanism induced by pore mutation N617D in the skeletal muscle DHPR.

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