144 results found
    1. Neuroscience

    Dismantling the Papez circuit for memory in rats

    Seralynne D Vann
    In contrast to current models, inputs from midbrain limbic structures, but not from the hippocampus, are necessary for mammillary body contributions to memory.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Phosphorylation-mediated PTEN conformational closure and deactivation revealed with protein semisynthesis

    David Bolduc, Meghdad Rahdar ... Philip Cole
    C-terminal phosphorylation of the lipid phosphatase PTEN drives a reduction in membrane affinity and leads to a more compact conformation that involves a C2 domain-tail interaction.
    1. Neuroscience
    2. Medicine

    Common resting brain dynamics indicate a possible mechanism underlying zolpidem response in severe brain injury

    Shawniqua T Williams, Mary M Conte ... Nicholas D Schiff
    The therapeutic effects of the sleeping pill zolpidem in patients with disorders of consciousness may be due to recruitment of brain cells idling in abnormally low-frequency brain waves.
    1. Developmental Biology

    Requirement of Smurf-mediated endocytosis of Patched1 in sonic hedgehog signal reception

    Shen Yue, Liu-Ya Tang ... Steven Y Cheng
    Smurf1 and Smurf2 have essential functions in the mammalian Shh signaling pathway, binding to and ubiquitylating Patched1, leading to its endocytosis and subsequent degradation in lysosomes.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Single-molecule tracking in live cells reveals distinct target-search strategies of transcription factors in the nucleus

    Ignacio Izeddin, Vincent Récamier ... Xavier Darzacq
    While the transcription factor c-Myc explores the space in the nucleus in an unrestricted manner, the elongation factor P-TEFb's sampling of the nucleus is constrained to a complex domain with fractal characteristics.
    1. Neuroscience

    Hidden synaptic differences in a neural circuit underlie differential behavioral susceptibility to a neural injury

    Akira Sakurai, Arianna N Tamvacakis, Paul S Katz
    Animal-to-animal variability in neural circuit elements is often hidden under normal conditions, but becomes functionally relevant when the system is challenged by injury.
    1. Cell Biology
    2. Developmental Biology

    Flattop regulates basal body docking and positioning in mono- and multiciliated cells

    Moritz Gegg, Anika Böttcher ... Heiko Lickert
    In cell types that acquire planar cell polarity, the protein Flattop regulates basal body docking and positioning.
    1. Neuroscience

    Disruption of thalamic functional connectivity is a neural correlate of dexmedetomidine-induced unconsciousness

    Oluwaseun Akeju, Marco L Loggia ... Patrick L Purdon
    Patterns of communication between the thalamus and the cortex are correlated with anesthesia-induced loss of consciousness and recovery.
    1. Cell Biology
    2. Neuroscience

    The small molecule ISRIB reverses the effects of eIF2α phosphorylation on translation and stress granule assembly

    Carmela Sidrauski, Anna M McGeachy ... Peter Walter
    Building on previous work which showed that the small molecule ISRIB potently blocks the integrated stress response (Sidrauski et al., 2013), we report on ISRIB's remarkable specificity and fast action in vivo, underscoring its proposed direct effect on translation.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Inducible depletion of adult skeletal muscle stem cells impairs the regeneration of neuromuscular junctions

    Wenxuan Liu, Lan Wei-LaPierre ... Joe V Chakkalakal
    Skeletal muscle stem cells play important roles in the regeneration of neuromuscular junctions, and so present new targets for therapies to treat neuromuscular decline observed in the context of aging and various neuromuscular diseases.

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