162 results found
  1. February 2016

    Episode 27: February 2016

    In this episode we hear about midnight snacking, X-ray imaging of fossils, hummingbirds, monkeys gambling and axolotls regenerating.
    1. Neuroscience

    Dopaminergic neurons write and update memories with cell-type-specific rules

    Yoshinori Aso, Gerald M Rubin
    Building on previous work (Aso et al., 2014a; Aso et al., 2014b), cell-type-specific drivers and optogenetics are used to control the local release of dopamine and reveal that distinct learning rules are implemented in parallel memory units.
    1. Cancer Biology
    2. Genes and Chromosomes

    MYC activation and BCL2L11 silencing by a tumour virus through the large-scale reconfiguration of enhancer-promoter hubs

    C David Wood et al.
    Epstein-Barr virus controls B-cell growth and survival through large-scale reorganization of the enhancers of the MYC and BCL2L11 genes, and may promote MYC translocations as a result.
    1. Biophysics and Structural Biology

    Structure and in situ organisation of the Pyrococcus furiosus archaellum machinery

    Bertram Daum et al.
    Using both electron cryo-tomography and helical reconstruction, the first structure of the entire archaellum machinery with an assembled filament has been determined, providing the structural basis for our understanding of archaeal motility.
    1. Neuroscience

    New learning while consolidating memory during sleep is actively blocked by a protein synthesis dependent process

    Roi Levy et al.
    The brain inhibits the formation of new memories just after waking to safeguard the ongoing stabilization of existing memories during sleep.
    1. Neuroscience

    Sleep deprivation causes memory deficits by negatively impacting neuronal connectivity in hippocampal area CA1

    Robbert Havekes et al.
    The loss of neuronal connectivity in a brain region called the hippocampus significantly contributes to the cognitive impairments associated with sleep deprivation.
    1. Neuroscience

    Repeated social defeat stress enhances glutamatergic synaptic plasticity in the VTA and cocaine place conditioning

    Claire E Stelly et al.
    Enhanced glutamatergic synaptic plasticity in mesolimbic dopaminergic neurons may contribute to repeatedly stressed rats becoming more vulnerable to addiction.
    1. Neuroscience

    Cyclooxygenase-2 inhibition reduces stress-induced affective pathology

    Joyonna Carrie Gamble-George et al.
    Mechanistically distinct COX-2 inhibitors reduce stress-induced behavioral pathology via unique multimodal molecular mechanisms, and could be used to treat mood disorders.
    1. Neuroscience

    MicroRNA-9 controls dendritic development by targeting REST

    Sebastian A Giusti et al.
    Conditional transgenic miR-9 sponge mice exhibit developmental defects in dendrite growth due to up-regulation of the transcriptional repressor REST.

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