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    1. Neuroscience

    Relaxation of synaptic inhibitory events as a compensatory mechanism in fetal SOD spinal motor networks

    Pascal Branchereau et al.
    Electrophysiological and simulation approaches show that a chloride-related longer relaxation of the inhibitory synaptic events partially compensates the early defect in the chloride homeostasis detected in fetal SOD spinal motoneurons.
    1. Neuroscience

    Mechanisms of hyperexcitability in Alzheimer’s disease hiPSC-derived neurons and cerebral organoids vs isogenic controls

    Swagata Ghatak et al.
    Increased excitation and decreased inhibition associated with abnormal neuronal morphology, aberrant ion channel properties, and synaptic dysfunction contribute to hyperexcitability in Alzheimer’s disease hiPSC-derived neuronal cultures and cerebral organoids.
    1. Neuroscience

    Defective synaptic transmission causes disease signs in a mouse model of juvenile neuronal ceroid lipofuscinosis

    Benedikt Grünewald et al.
    Impaired GABAergic and glutamatergic synaptic function and loss of interneurons in the amygdala, hippocampus, and cerebellum cause characteristic disease symptoms in a mouse model juvenile neuronal ceroid lipofuscinosis.
    1. Human Biology and Medicine
    2. Neuroscience

    Beyond excitation/inhibition imbalance in multidimensional models of neural circuit changes in brain disorders

    Cian O'Donnell et al.
    Computational modeling and analysis of mouse neural population data finds that the excitation/inhibition imbalance theory of brain disorders is too limited to account for key changes in neural activity statistics.
    1. Neuroscience

    Intramuscular Neurotrophin-3 normalizes low threshold spinal reflexes, reduces spasms and improves mobility after bilateral corticospinal tract injury in rats

    Claudia Kathe et al.
    Delayed intramuscular gene therapy with neurotrophin-3 after corticospinal tract injury reduces spasticity and improves locomotion by treating underlying causes of spasticity.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    NOVA-dependent regulation of cryptic NMD exons controls synaptic protein levels after seizure

    Taesun Eom et al.
    The HITS-CLIP sequencing method is used to demonstrate that cryptic exons can detect messenger RNA that contains nonsense mutations, and then cause this RNA to decay, which shows that these exons are involved in maintaining the electrical balance of neurons and, possibly, preventing epilepsy.
    1. Neuroscience

    Cortical excitability controls the strength of mental imagery

    Rebecca Keogh et al.
    Visual and prefrontal cortex excitability predict individual differences in visual imagery strength, and modulating excitability in these cortical regions causally alters the strength of visual imagery.
    1. Neuroscience

    Oligodendrocytes control potassium accumulation in white matter and seizure susceptibility

    Valerie A Larson et al.
    Oligodendrocytes in white matter use Kir4.1 inwardly rectifying potassium channels to prevent extracellular potassium accumulation, enabling neurons to sustain repetitive firing and limiting the initiation of seizures.
    1. Cell Biology
    2. Neuroscience

    Cell-type-specific regulation of neuronal intrinsic excitability by macroautophagy

    Ori J Lieberman et al.
    In addition to its classic role in synaptic function and plasticity, macroautophagy regulates neuronal intrinsic excitability via degradation of acetylated Kir2 channels to control neurotransmission.
    1. Neuroscience

    Calpain fosters the hyperexcitability of motoneurons after spinal cord injury and leads to spasticity

    Vanessa Plantier et al.
    Calpain is a promising therapeutic target to reduce spasticity after a spinal cord injury.