2,633 results found
    1. Neuroscience

    Septal cholinergic input to CA2 hippocampal region controls social novelty discrimination via nicotinic receptor-mediated disinhibition

    Domenico Pimpinella et al.
    Acetylcholine, released from cholinergic fibers originating from the medial septum, shapes social memory, and controls the CA2 hippocampal circuit via nicotinic receptors localized on GABAergic interneurons.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Multicolor fluorescence fluctuation spectroscopy in living cells via spectral detection

    Valentin Dunsing et al.
    Fluorescence fluctuation spectroscopy is implemented for detection of up to four molecular species, allowing users to quantify molecular interactions and stoichiometry of multicomponent complexes in live cells, in a wide range of biological processes, from membrane signaling to viral assembly.
    1. Cell Biology

    Impaired mRNA splicing and proteostasis in preadipocytes in obesity-related metabolic disease

    Julia Sánchez-Ceinos et al.
    Alternative splicing and the endoplasmic reticulum (ER)-associated protein degradation (ERAD) system represent essential, fat depot-specific components of the adipogenesis that are altered in preadipocytes from obese individuals with metabolic disease.
    1. Ecology

    Little evidence that Eurasian jays protect their caches by responding to cues about a conspecific’s desire and visual perspective

    Piero Amodio et al.
    Across five experiments, Eurasian jays’ caching behaviour provides little evidence of the ability to integrate cues about a potential pilferer’s visual perspective and desire and, challenging previous findings, to respond to either of the two social cues independently.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Adult stem cells and niche cells segregate gradually from common precursors that build the adult Drosophila ovary during pupal development

    Amy Reilein et al.
    Somatic stem and niche cells in the Drosophila ovary develop from common precursors through regulated proliferative expansion, followed by acquisition of position-specific behaviors, rather than through rigid early specification events.
    1. Structural Biology and Molecular Biophysics

    Transcription initiation at a consensus bacterial promoter proceeds via a ‘bind-unwind-load-and-lock’ mechanism

    Abhishek Mazumder et al.
    Single-molecule fluorescence experiments reveal transcription initiation proceeds via a 'bind-unwind-load-and-lock' mechanism where promoter DNA unwinds outside the RNA polymerase (RNAP) cleft, the unwound template-DNA loads into the cleft, and RNAP 'locks' the template-DNA by closing the RNAP clamp module.
    1. Cancer Biology
    2. Computational and Systems Biology

    Integrated evaluation of telomerase activation and telomere maintenance across cancer cell lines

    Kevin Hu et al.
    Comprehensive analysis of telomere maintenance from transcriptomic, epigenetic, and loss-of-function profiles of cancer cell lines elucidates features of telomere regulation in cancer.

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