373 results found
  1. February 2017

    Episode 36: February 2017

    In this episode we hear about epilepsy, the sushi-belt model of transport in neurons, a mother in ancient Troy, the Amazon rainforest and bias in scientific reporting.
    1. Neuroscience

    A dual role for Cav1.4 Ca2+ channels in the molecular and structural organization of the rod photoreceptor synapse

    J Wesley Maddox et al.
    Ca2+ influx through Cav1.4 channels is required for the structural, but not the molecular organization of the rod photoreceptor synapse.
    1. Neuroscience

    TrpML-mediated astrocyte microdomain Ca2+ transients regulate astrocyte–tracheal interactions

    Zhiguo Ma, Marc R Freeman
    Astrocyte microdomain calcium transients are mediated by TrpML, stimulated by ROS and tyramine, and mediate astrocyte–tracheal interactions in CNS gas exchange.
    1. Cell Biology
    2. Immunology and Inflammation

    Neutrophil infiltration regulates clock-gene expression to organize daily hepatic metabolism

    María Crespo et al.
    Circadian neutrophil infiltration in the liver modulates liver clock-gene expression and daily hepatic metabolism through the secretion of elastase and activation of JNK-FGF21-Bmal1 axis in the hepatocyte.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Kv2.1 mediates spatial and functional coupling of L-type calcium channels and ryanodine receptors in mammalian neurons

    Nicholas C Vierra et al.
    A potassium channel, as a nonconducting function, organizes compartmentalized neuronal calcium signaling microdomains via structural and functional coupling of plasma membrane and endoplasmic reticulum calcium channels.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Dynamic change of electrostatic field in TMEM16F permeation pathway shifts its ion selectivity

    Wenlei Ye et al.
    TMEM16F shifts its ion selectivity in response to change of intracellular Ca2+, membrane potential and ionic strength.
    1. Neuroscience

    RIM is essential for stimulated but not spontaneous somatodendritic dopamine release in the midbrain

    Brooks G Robinson et al.
    Midbrain dopamine neurons use sophisticated secretory machinery to establish specialized sites for action potential-evoked release of dopamine from their cell bodies and dendrites.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Sec17/Sec18 act twice, enhancing membrane fusion and then disassembling cis-SNARE complexes

    Hongki Song et al.
    Sec17 (αSNAP) and Sec18 (NSF) are shown to act twice, to promote fusion per se and to recycle SNAREs after fusion.
    1. Neuroscience

    Physiological and pathophysiological control of synaptic GluN2B-NMDA receptors by the C-terminal domain of amyloid precursor protein

    Paula A Pousinha et al.
    The APP intracellular domain (AICD) physiologically regulates synaptic GluN2B-containing NMDA receptor current, a process that could contribute to pathological Alzheimer's disease-related synaptic failure upon increase of AICD levels in adult neurons.
    1. Physics of Living Systems

    Spatial control of neuronal metabolism through glucose-mediated mitochondrial transport regulation

    Anamika Agrawal et al.
    A quantitative analysis of glucose-dependent transport regulation indicates that mitochondrial accumulation in regions of high nutrient availability can enhance metabolism in neuronal axons under physiologically relevant conditions.

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