411 results found
    1. Genetics and Genomics
    2. Neuroscience

    Increased processing of SINE B2 ncRNAs unveils a novel type of transcriptome deregulation in amyloid beta neuropathology

    Yubo Cheng et al.
    SINE RNAs are implicated in amyloid beta molecular pathology in hippocampus.
    1. Neuroscience

    Presynaptic NMDARs cooperate with local spikes toward GABA release from the reciprocal olfactory bulb granule cell spine

    Vanessa Lage-Rupprecht et al.
    The essential role of presynaptic NMDA receptors for granule cell GABAergic output elucidates the function of reciprocal spines in recurrent and possibly lateral inhibition of mitral cells during olfactory processsing.
    1. Neuroscience

    How many neurons are sufficient for perception of cortical activity?

    Henry WP Dalgleish et al.
    Targeted optogenetic activation of small ensembles of neurons is sufficient to trigger a behavioral report while recruiting matched network suppression, suggesting exquisite sensitivity despite network mechanisms that maintain sparseness.
    1. Stem Cells and Regenerative Medicine

    Proteomic analysis of young and old mouse hematopoietic stem cells and their progenitors reveals post-transcriptional regulation in stem cells

    Balyn W Zaro et al.
    Mass spectrometry exposes a post-transcriptionally regulated reduction in protein diversity in hematopoietic stem cells, including a lack of detectable Dnmt3a protein levels despite mRNA levels comparable to progenitors.
    1. Genetics and Genomics
    2. Neuroscience

    High neural activity accelerates the decline of cognitive plasticity with age in Caenorhabditis elegans

    Qiaochu Li et al.
    Chronic excitation of the Caenorhabditis elegans oxygen-sensing neurons alters calcium homeostasis to accelerate the decline of neural plasticity with age.
    1. Neuroscience

    Altered hippocampal-prefrontal communication during anxiety-related avoidance in mice deficient for the autism-associated gene Pogz

    Margaret M Cunniff et al.
    In POGZ heterozygous mice, reduced anxiety-related avoidance is associated with decreased feedforward inhibition and theta synchrony in the hippocampal-prefrontal pathway.
    1. Neuroscience

    Defective memory engram reactivation underlies impaired fear memory recall in Fragile X syndrome

    Jie Li et al.
    Activity-dependent genetic labeling during behavioral learning shows Fragile-X syndrome model mice exhibit impaired hippocampal engram reactivation, and that enriched environment experience improves fear memory retrieval by enhancing engram reactivation efficacy.
    1. Neuroscience

    Modulation of flight and feeding behaviours requires presynaptic IP3Rs in dopaminergic neurons

    Anamika Sharma, Gaiti Hasan
    Motivation for flight and feeding behaviour requires dopamine release which depends on cholinergic stimulation and intracellular Ca2+ release from ER stores in one or two pairs of central dopaminergic neurons.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    RUNX1 marks a luminal castration-resistant lineage established at the onset of prostate development

    Renaud Mevel et al.
    The transcription factor RUNX1 marks a distinct lineage of luminal castration-resistant prostate cells established early during development and enriched in the periurethral region of adult mouse prostate.
    1. Cell Biology
    2. Genetics and Genomics

    Mapping endothelial-cell diversity in cerebral cavernous malformations at single-cell resolution

    Fabrizio Orsenigo et al.
    Single-cell RNA analysis of brain endothelium identifies the angiogenic venous capillary subset and respective resident endothelial progenitors at the origin of CCM lesions, while arterial endothelial cells are unaffected.

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