416 results found
    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
    2. Structural Biology and Molecular Biophysics

    PIP2 depletion promotes TRPV4 channel activity in mouse brain capillary endothelial cells

    Osama F Harraz et al.
    TRPV4 channels in brain capillaries are suppressed by the phosphoinositide PIP2 and activated by receptor agonists implicated in neurovascular coupling.
    1. Cell Biology

    Capillary pericytes mediate coronary no-reflow after myocardial ischaemia

    Fergus M O'Farrell et al.
    Lack of reperfusion of cardiac capillaries, when an upstream artery is unblocked following heart attack, reflects contractile pericytes constricting capillaries and preventing blood flow, implying that cardiac pericytes are a therapeutic target for treating cardiac ischaemia.
    1. Neuroscience

    Capillary pericytes express α-smooth muscle actin, which requires prevention of filamentous-actin depolymerization for detection

    Luis Alarcon-Martinez et al.
    Pericytes surrounding capillaries in the retina contain α-smooth muscle actin, demonstrating that pericytes have the necessary molecular machinery to change capillary diameter during neurovascular coupling.
    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

    Brain endothelial cell TRPA1 channels initiate neurovascular coupling

    Pratish Thakore et al.
    Activation of TRPA1 channels on cerebral capillary endothelial cells initiates a retrograde signal that propagates and dilates upstream arterioles.
    1. Neuroscience

    Mapping oxygen concentration in the awake mouse brain

    Declan G Lyons et al.
    Two-photon phosphorescence lifetime microscopy reveals the physiological values of oxygen concentration and blood flow parameters in the brains of awake mice.
    1. Neuroscience

    VEGF signaling regulates the fate of obstructed capillaries in mouse cortex

    Patrick Reeson et al.
    Mapping the fate of clogged brain capillaries reveals that VEGF signaling plays a critical role in dictating whether capillaries regain blood flow and persist or are pruned from the vascular tree.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Increasing heart vascularisation after myocardial infarction using brain natriuretic peptide stimulation of endothelial and WT1+ epicardial cells

    Na Li et al.
    Brain natriuretic peptide supplementation can increase cardiac neovascularization in infarcted hearts by stimulating endogenous endothelial cell proliferation and proliferation of precursor cells, which will differentiate into endothelial cells.
    1. Cell Biology
    2. Medicine

    Lymphangiogenic therapy prevents cardiac dysfunction by ameliorating inflammation and hypertension

    LouJin Song et al.
    Lymphangiogenic therapy VEGFCc156s improved angiotensin-II-induced impairments in heart function via novel mechanisms, which include transcriptional responses to alleviate inflammation and cardiac fibrosis, and systemic responses to ameliorate hypertension.

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