48 results found
    1. Neuroscience
    2. Physics of Living Systems

    The neuronal calcium sensor Synaptotagmin-1 and SNARE proteins cooperate to dilate fusion pores

    Zhenyong Wu et al.
    During neurotransmitter release, calcium-induced membrane insertion of the C2B domain of Synaptotagmin re-orients the bound SNARE complex which dilates the fusion pore in a mechanical lever action.
    1. Neuroscience

    Clearance of beta-amyloid is facilitated by apolipoprotein E and circulating high-density lipoproteins in bioengineered human vessels

    Jerome Robert et al.
    Modelling beta-amyloid deposition in bioengineered human vessels represents a notable advance to further investigate the role of the vasculature in Alzheimer's disease.
    1. Cell Biology

    A critical role of VMP1 in lipoprotein secretion

    Hideaki Morishita et al.
    The ER transmembrane protein VMP1 is important for release of lipoproteins from the ER membrane into the ER lumen for secretion.
    1. Medicine
    2. Neuroscience

    Family history of Alzheimer’s disease alters cognition and is modified by medical and genetic factors

    Joshua S Talboom et al.
    An internet-based cohort study of paired associate learning shows that a first-degree family history of dementia is associated with lowered performance, an effect modified by apolipoprotein E genotype and diabetes.
    1. Neuroscience

    Reversal of ApoE4-induced recycling block as a novel prevention approach for Alzheimer’s disease

    Xunde Xian et al.
    Lowering endosomal pH through inhibition of sodium-hydrogen exchanger 6 corrects the ApoE4-induced Reelin resistance and restores neuronal glutamate receptor trafficking.
    1. Medicine
    2. Neuroscience

    APOE2 is associated with longevity independent of Alzheimer’s disease

    Mitsuru Shinohara et al.
    Translational evidence indicates APOE2 benefits longevity independent of its protective effects on Alzheimer’s disease, which preserved activity and the metabolism of apoE protein and associated-lipids would be key to understanding.
    1. Cell Biology

    LRP1 integrates murine macrophage cholesterol homeostasis and inflammatory responses in atherosclerosis

    Xunde Xian et al.
    Tyrosine phosphorylation of the intracellular domain of LRP1 serves as a molecular switch to regulate cellular cholesterol homeostasis through nuclear hormone receptor-mediated regulation of the cellular cholesterol exporter ABCA1.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Dilation of fusion pores by crowding of SNARE proteins

    Zhenyong Wu et al.
    A few SNARE complexes suffice to fuse membranes, but many more are needed to dilate the nascent fusion pore by molecular crowding for efficient neurotransmitter or hormone release during exocytosis.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    Synergy between serum amyloid A and secretory phospholipase A2

    Shobini Jayaraman et al.
    SAA removes toxic products of lipolysis of the cell membrane by sPLA2, indicating that SAA and sPLA2 act synergistically to clear debris from injured sites, as required for tissue healing.
    1. Neuroscience

    Tissue Engineering: Building a better blood-brain barrier

    Courtney Lane-Donovan, Joachim Herz
    A new three-dimensional model of the blood-brain barrier can be used to study processes that are involved in neurodegenerative diseases.
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