52 results found
    1. Neuroscience

    Early intrinsic hyperexcitability does not contribute to motoneuron degeneration in amyotrophic lateral sclerosis

    Félix Leroy et al.
    Contrary to a long-standing hypothesis, the neuronal death that leads to muscle wastage in amyotrophic lateral sclerosis does not result from overactivity of those neurons during development.
    1. Neuroscience

    Hypoexcitability precedes denervation in the large fast-contracting motor units in two unrelated mouse models of ALS

    María de Lourdes Martínez-Silva et al.
    The most vulnerable motor units lose a fundamental firing property before the denervation of their muscle fibers in ALS mice, changing our view of the role of excitability in neurodegeneration.
    1. Neuroscience

    Altered potassium channel distribution and composition in myelinated axons suppresses hyperexcitability following injury

    Margarita Calvo et al.
    Type 1 potassium channels alter their composition and localisation to suppress hyper-excitability and neuropathic pain of injured sensory neurons.
    1. Neuroscience

    Noise-induced plasticity of KCNQ2/3 and HCN channels underlies vulnerability and resilience to tinnitus

    Shuang Li et al.
    Mice that successfully avoid developing tinnitus despite exposure to excessive noise show spontaneous recovery of KCNQ2/3 potassium channel activity associated with a reduction in HCN channel activity in auditory brainstem neurons.
    1. Neuroscience

    Neuropathic Pain: The pros and cons of degeneracy

    Jean-Marc Goaillard, Martial A Dufour
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    1. Neuroscience

    Amyotrophic Lateral Sclerosis: Marking the differences in motoneurons

    Simon A Sharples, Patrick J Whelan
    A subgroup of the neurons that control muscles becomes less excitable shortly before the symptoms of ALS develop.
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    1. Neuroscience

    Resting-state gamma-band power alterations in schizophrenia reveal E/I-balance abnormalities across illness-stages

    Tineke Grent-'t-Jong et al.
    Resting-state MEG-activity and MRS-GABA/Glx measurements reveal that there is a significant shift in excitability during the course of schizophrenia, involving hyperexcitability during the onset and a reduction at chronic stages.
    1. Neuroscience

    A dystonia-like movement disorder with brain and spinal neuronal defects is caused by mutation of the mouse laminin β1 subunit, Lamb1

    Yi Bessie Liu et al.
    A mouse with a defined mutation in an extracellular matrix protein that is expressed in selected neurons sheds light on circuit abnormalities producing transient hyperkinetic movements.
    1. Neuroscience

    SIR-2.1 integrates metabolic homeostasis with the reproductive neuromuscular excitability in early aging male Caenorhabditis elegans

    Xiaoyan Guo, L René García
    A protein called SIR-2.1 helps to protect worms from the effects of aging by regulating metabolic processes that would otherwise generate damaging reactive oxygen species.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Natural antisense transcripts regulate the neuronal stress response and excitability

    Xingguo Zheng et al.
    The mRNA that encodes a Drosophila sodium channel enables neurons to adapt to acute temperature changes, via a mechanism independent of its protein-coding role.

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