1,766 results found
    1. Neuroscience

    In vivo imaging with a water immersion objective affects brain temperature, blood flow and oxygenation

    Morgane Roche et al.
    Brain temperature and oxygenation vary according to the imaging conditions during two-photon microscopy.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Quantitative analysis of 1300-nm three-photon calcium imaging in the mouse brain

    Tianyu Wang et al.
    Quantitative experiments and analysis determine the limit of excitation power of 1300-nm three-photon microscopy, and the imaging depth where three-photon outperforms two-photon for calcium imaging in the mouse brain.
    1. Neuroscience

    More homogeneous capillary flow and oxygenation in deeper cortical layers correlate with increased oxygen extraction

    Baoqiang Li et al.
    Resting-state capillary blood flow and oxygenation are more homogeneous in the deeper cortical layers, underpinning an important mechanism by which the microvascular network adapts to an increased local oxidative metabolism.
    1. Neuroscience

    Apolipoprotein M-bound sphingosine-1-phosphate regulates blood–brain barrier paracellular permeability and transcytosis

    Mette Mathiesen Janiurek et al.
    Shortage of blood-borne apolipoprotein-M–bound sphingosine-1-phosphate, which accompanies various brain disorders, causes paracellular leak and increase in transcytosis at the blood–brain barrier, which can be reversed, thus is of clinical relevance.
    1. Structural Biology and Molecular Biophysics

    PIE-scope, integrated cryo-correlative light and FIB/SEM microscopy

    Sergey Gorelick et al.
    The PIE-scope resolves the limitations in correlative cryo-focused ion beam milling by adding robustness and ease of use to the workflow.
    1. Neuroscience

    Two-photon calcium imaging of the medial prefrontal cortex and hippocampus without cortical invasion

    Masashi Kondo et al.
    Establishment of two-photon imaging with a 1100-nm laser, which underfills the objective's back aperture, detects activity of multiple neurons in the prelimbic area and hippocampal CA1 region of the intact mouse brain.
    1. Neuroscience

    Relationship between simultaneously recorded spiking activity and fluorescence signal in GCaMP6 transgenic mice

    Lawrence Huang et al.
    Simultaneous calcium imaging and cell-attached recording in GCaMP6 transgenic mice in vivo reveals spiking-fluorescence relationship that supports more refined inference of neuronal activities from calcium imaging data.
    1. Structural Biology and Molecular Biophysics

    Mechanical inhibition of isolated Vo from V/A-ATPase for proton conductance

    Jun-ichi Kishikawa et al.
    Cryo-EM structures of rotary V-ATPase reveal the ON-OFF switching mechanism of H+ translocation in the Vo membrane domain.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    In vivo imaging of β-cell function reveals glucose-mediated heterogeneity of β-cell functional development

    Jia Zhao et al.
    In vivo imaging reveals that gradually increased amount of glucose mediates the heterogeneous functional development of individual β-cells by activating its major downstream calcineurin/NFAT signaling pathway.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Dynamic subcellular localization of a respiratory complex controls bacterial respiration

    François Alberge et al.
    The localization of respiratory complexes in the cell membrane emerges as a critical factor for controlling respiration in bacteria.

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