5,506 results found
    1. Cell Biology
    2. Neuroscience

    GluN2B-containing NMDA receptors regulate depression-like behavior and are critical for the rapid antidepressant actions of ketamine

    Oliver H Miller et al.
    The rapid antidepressant actions of low dose ketamine occur through the direct relief of suppression of protein synthesis via antagonism of a subset of NMDA receptors containing the GluN2B subunit.
    1. Neuroscience

    Attenuated dopamine signaling after aversive learning is restored by ketamine to rescue escape actions

    Mingzheng Wu et al.
    Interconnected ventral tegmental area and medial prefrontal cortex circuits causally link dopamine dynamics, aversive learning, and the effects of a promising rapidly acting antidepressant ketamine.
    1. Neuroscience

    Antidepressants: Where ketamine and dopamine collide

    David J Marcus, Michael R Bruchas
    Ketamine strengthens connections between two brain regions that are involved in the production and regulation of dopamine, which may explain how the drug can alleviate depression.
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    1. Neuroscience

    A circuit mechanism for decision-making biases and NMDA receptor hypofunction

    Sean Edward Cavanagh et al.
    Ketamine, an NMDA receptor antagonist and experimental model for schizophrenia, produces decision-making deficits in monkeys, which are predicted by a lowering of cortical excitation-inhibition balance in a spiking circuit model.
    1. Cell Biology
    2. Neuroscience

    Neuropharmacology: How ketamine helps to overcome depression

    Thu N Huynh, Eric Klann
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    1. Neuroscience

    Diminished responses to bodily threat and blunted interoception in suicide attempters

    Danielle C DeVille et al.
    People who have attempted suicide exhibit blunted sensory processing during breathing and pain perturbations, as well as lower heartbeat perception accuracy and reduced mid/posterior insula activity during interoceptive attention.
    1. Neuroscience

    Contrasting roles for parvalbumin-expressing inhibitory neurons in two forms of adult visual cortical plasticity

    Eitan S Kaplan et al.
    Parvalbumin-containing inhibitory neurons are crucial for expression of plasticity in adult visual cortex that supports visual recognition memory, but not for expression of ocular dominance plasticity that results from monocular deprivation.
    1. Epidemiology and Global Health

    The effects of a deleterious mutation load on patterns of influenza A/H3N2's antigenic evolution in humans

    Katia Koelle, David A Rasmussen
    Deleterious mutations slow down flu's antigenic evolution, make it more punctuated in nature, and reduce the virus's genetic diversity.
    1. Neuroscience

    Whole-organism behavioral profiling reveals a role for dopamine in state-dependent motor program coupling in C. elegans

    Nathan Cermak et al.
    Simultaneous quantification of each of the main motor programs in the roundworm C. elegans yields new insights into the neural mechanisms that coordinate animal behavior.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Sex-specific transcriptomic responses to changes in the nutritional environment

    M Florencia Camus et al.
    Male and female Drosophila share core metabolic responses to different nutritional environments, but show opposing patterns of nutrient-dependent reproductive regulation.

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