980 results found
    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

    The severity of microstrokes depends on local vascular topology and baseline perfusion

    Franca Schmid et al.
    The number of inflows and outflows at the occluded capillary governs the local flow reduction, and the different topological configurations are probably designed for distinct functional tasks.
    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. 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

    Separable pupillary signatures of perception and action during perceptual multistability

    Jan W Brascamp et al.
    When conscious visual perception changes, the observer's pupils simultaneously signal the accompanying change in visual cortical representation, and specific neuromodulatory activity that helps translate the altered visual experience into behavior.
    1. Ecology
    2. Neuroscience

    Olfactory channels associated with the Drosophila maxillary palp mediate short- and long-range attraction

    Hany KM Dweck et al.
    Drosophila's second nose, the maxillary palp, is involved in short- and long-range attraction.
    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. Cancer Biology
    2. Genetics and Genomics

    Abnormal oxidative metabolism in a quiet genomic background underlies clear cell papillary renal cell carcinoma

    Jianing Xu et al.
    A distinct class of kidney tumors is characterized not by patterns of somatic mutations, but by a distinct metabolism.
    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. Genetics and Genomics

    Mapping endothelial-cell diversity in cerebral cavernous malformations at single-cell resolution

    Fabrizio Orsenigo et al.
    Single-cell RNA analysis of brain endothelium identifies the angiogenic venous capillary subset and respective resident endothelial progenitors at the origin of CCM lesions, while arterial endothelial cells are unaffected.

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