4,025 results found
    1. Cell Biology
    2. Computational and Systems Biology

    Removing physiological motion from intravital and clinical functional imaging data

    Sean C Warren et al.
    Image-based motion correction enables the use of fluorescence lifetime and other functional imaging modalities in an intravital and clinical context in the presence of physiological motion.
    1. Evolutionary Biology

    Existence and functions of a kisspeptin neuropeptide signaling system in a non-chordate deuterostome species

    Tianming Wang et al.
    Identification and functional characterization of the first non-chordate kisspeptin neuropeptide system in the sea cucumber indicates the ancient origin of the intracellular signaling and physiological functions of this molecular system.
    1. Structural Biology and Molecular Biophysics

    Structure and physiological function of the human KCNQ1 channel voltage sensor intermediate state

    Keenan C Taylor et al.
    The intermediate state conformation of the human KCNQ1 potassium channel voltage sensor domain was determined, validated, and shown to be conductive under physiological conditions.
    1. Structural Biology and Molecular Biophysics
    2. Evolutionary Biology

    Methylation at the C-2 position of hopanoids increases rigidity in native bacterial membranes

    Chia-Hung Wu et al.
    Methylation specifically enhances the ability of hopanoids to rigidify membranes under physiologically relevant conditions, which impacts the current interpretation of the 2-methylhopane fossil record.
    1. Neuroscience

    The effects of psychosocial stress on dopaminergic function and the acute stress response

    Michael AP Bloomfield et al.
    Imaging and laboratory-induced psychosocial stress showed that exposure to psychosocial adversity was associated with dampened striatal dopaminergic function alongside blunted physiological yet potentiated subjective responses to acute stress.
    1. Neuroscience

    Maintenance of homeostatic plasticity at the Drosophila neuromuscular synapse requires continuous IP3-directed signaling

    Thomas D James et al.
    Synapses employ distinct acute and chronic signaling processes in order to maintain physiologically appropriate levels of function.
    1. Medicine

    Myocardial NADPH oxidase-4 regulates the physiological response to acute exercise

    Matthew Hancock et al.
    Cardiomyocyte Nox4 is a crucial physiological mediator of Nrf2 activation during acute exercise, triggering an adaptive response that preserves redox balance, mitochondrial and cardiac function to support normal physical exercise.
    1. Neuroscience

    The N-terminus of the prion protein is a toxic effector regulated by the C-terminus

    Bei Wu et al.
    A novel auto-inhibitory mechanism regulates the functional activity of the cellular prion protein, PrPC, providing for the first time a coherent molecular model for both its pathological and physiological effects.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteomic analysis of the response to cell cycle arrests in human myeloid leukemia cells

    Tony Ly et al.
    Building on previous work (Ly et al., 2014), we show that elutriated cells and arrested cells have similar patterns of DNA content and cyclin expression: however, a large fraction of the proteome changes detected in arrested cells are found to reflect arrest-specific responses rather than physiological cell cycle regulation.
    1. Neuroscience

    A size principle for recruitment of Drosophila leg motor neurons

    Anthony W Azevedo et al.
    Motor neurons controlling the leg of the fruit fly exhibit a gradient of physiological and functional properties that correlate with the order in which they fire during behavior.

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