69 results found
    1. Neuroscience

    Polyglycerol-opioid conjugate produces analgesia devoid of side effects

    Sara González-Rodríguez et al.
    A novel opioid formulation producing analgesia similar to conventional opioids without permeation of blood-brain or intestinal barriers, thus precluding sedation, constipation and respiratory depression.
    1. Neuroscience

    Constitutive activation of kappa opioid receptors at ventral tegmental area inhibitory synapses following acute stress

    Abigail M Polter et al.
    Rats exposed to a single stressful event experience days-long constitutive activation of the kappa opioid receptor at inhibitory synapses in part of the brain’s reward system, which increases their drug-seeking behavior.
    1. Neuroscience

    An opioid-like system regulating feeding behavior in C. elegans

    Mi Cheong Cheong et al.
    The discovery that opioid neuropeptide neuronal signaling controls feeding behavior in a genetically tractable invertebrate model may help unravel the mechanisms of appetite control in humans.
    1. Neuroscience

    Synapse-specific opioid modulation of thalamo-cortico-striatal circuits

    William T Birdsong et al.
    By differentially modulating the two major excitatory inputs to the striatum, mu- and delta-opioid receptors regulate the balance between thalamic and cortical inputs to the striatum.
    1. Neuroscience

    In vivo detection of optically-evoked opioid peptide release

    Ream Al-Hasani et al.
    In vivo detection of optically evoked endogenous opioid peptides reveals anatomically distinct release profiles.
    1. Neuroscience

    Anti-nociceptive action of peripheral mu-opioid receptors by G-beta-gamma protein-mediated inhibition of TRPM3 channels

    Sandeep Dembla et al.
    Pro-nociceptive and pro-inflammatory TRPM3 (transient receptor potential melastatin 3) channels, expressed in somatosensory neurons, are inhibited by activation of Gαi-coupled receptors, such as µ-opioid receptors, in vitro and in vivo.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Measuring ligand efficacy at the mu-opioid receptor using a conformational biosensor

    Kathryn E Livingston et al.
    Opioid drug efficacy and allosteric modulation is measured using an active state sensor of the mu-opioid receptor.
    1. Neuroscience

    Cellular tolerance at the µ-opioid receptor is phosphorylation dependent

    Seksiri Arttamangkul et al.
    The role of C-terminal phosphorylation is critical for the expression of acute desensitization, trafficking and long-term tolerance to morphine.
    1. Neuroscience

    Dopamine and opioid systems interact within the nucleus accumbens to maintain monogamous pair bonds

    Shanna L Resendez et al.
    The neural mechanisms that underlie the maintenance of social bonds between prairie voles suggest that social support networks may be a powerful way of treating addiction.
    1. Neuroscience

    Endogenous opioids in the nucleus accumbens promote approach to high-fat food in the absence of caloric need

    Kevin Caref, Saleem M Nicola
    Activation of mu-opioid receptors in the nucleus accumbens by their endogenous ligands promotes consumption of high-fat food in sated but not hungry rats, via enhancement of a neural signal that promotes cued approach behavior.

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