731 results found
    1. Neuroscience

    Oscillatory hyperactivity and hyperconnectivity in young APOE-ɛ4 carriers and hypoconnectivity in Alzheimer’s disease

    Loes Koelewijn et al.
    Electrophysiology pinpoints brain function abnormalities in young people genetically at risk of developing Alzheimer's disease much later in life, supporting theories of initial hyperconnectivity driving eventual profound disconnection.
    1. Human Biology and Medicine
    2. 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. Developmental Biology
    2. Neuroscience

    APP interacts with LRP4 and agrin to coordinate the development of the neuromuscular junction in mice

    Hong Y Choi et al.
    Proteins implicated in Alzheimer’s disease, including amyloid precursor protein and ApoE receptors, interact with each other and with a signalling molecule called agrin to influence the development of the neuromuscular junction.
    1. Structural Biology and Molecular Biophysics

    Ligand discrimination and gating in cyclic nucleotide-gated ion channels from apo and partial agonist-bound cryo-EM structures

    Jan Rheinberger et al.
    High resolution SthK channel cryo-EM structures in different ligand-bound states combined with single-channel functional data in the same conditions constrain a gating mechanism for CNG channels.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cryo-EM visualization of the ribosome in termination complex with apo-RF3 and RF1

    Jesper Pallesen et al.
    Cryo-electron microscopy has been used to provide a structural interpretation of the complete action cycle of release factor 3 during translation termination, which includes a coordinated sequence of interactions with a class-I release factor and the ribosome.
    1. Ecology
    2. Evolutionary Biology

    The African ape-like foot of Ardipithecus ramidus and its implications for the origin of bipedalism

    Thomas Cody Prang
    The most recent common ancestor of humans, chimpanzees, and bonobos possessed a foot adapted to terrestrial quadrupedalism and climbing.
    1. Human Biology and 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. Cell Biology
    2. Neuroscience

    The E3 ubiquitin ligase IDOL regulates synaptic ApoER2 levels and is important for plasticity and learning

    Jie Gao et al.
    Control of lipoprotein receptor protein levels at synapses by the E3 ubiquitin ligase IDOL is shown to be important for the plasticity of neuronal dendrites in vitro and learning and memory in mice.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural insights into the light-driven auto-assembly process of the water-oxidizing Mn4CaO5-cluster in photosystem II

    Miao Zhang et al.
    The structures of photosystem II, with the water-oxidizing Mn4CaO5-cluster fully removed and in an intermediate assembly state, show that photoassembly is facilitated by perfectly pre-arranged protein ligands of the five metal ions.
    1. Evolutionary Biology

    Rapid evolution of the human mutation spectrum

    Kelley Harris, Jonathan K Pritchard
    Heritable mutations tend to occur within different DNA sequence contexts in different human populations, suggesting that DNA replication and repair often change in efficacy over only a few hundred generations of evolution.

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