238 results found
    1. Neuroscience

    Correlating STED and synchrotron XRF nano-imaging unveils cosegregation of metals and cytoskeleton proteins in dendrites

    Florelle Domart et al.
    The development of high-resolution correlative imaging of metals and proteins reveals the interaction of copper and zinc with the synaptic architecture of neurons.
    1. Evolutionary Biology

    New light shed on the early evolution of limb-bone growth plate and bone marrow

    Jordi Estefa et al.
    A three-dimensional investigation of extinct-tetrapod limbs shows that even though bone elongation and blood-cell production are intimately related to mammal long bones, these functions actually appeared successively in tetrapod evolution.
    1. Evolutionary Biology

    The developmental relationship between teeth and dermal odontodes in the most primitive bony fish Lophosteus

    Donglei Chen et al.
    Teeth and dermal odontodes diverge from the same set of founder odontodes, demonstrating they are modified subsets of the same system, and both oral and dermal epithelial have patterning capacity.
    1. Structural Biology and Molecular Biophysics

    Advances in X-ray free electron laser (XFEL) diffraction data processing applied to the crystal structure of the synaptotagmin-1 / SNARE complex

    Artem Y Lyubimov et al.
    Building on previous work (Uervirojnangkoorn et al., 2015), we demonstrate how improved methods for processing XFEL diffraction data enable the determination of structures from poorly diffracting crystals.
    1. Structural Biology and Molecular Biophysics

    Mapping the conformational landscape of a dynamic enzyme by multitemperature and XFEL crystallography

    Daniel A Keedy et al.
    The conformations of the enzyme cyclophilin A that are essential for its catalytic activity are temperature dependent and exhibit diverse responses, which is consistent with a complex energy landscape.
    1. Evolutionary Biology

    A new Heterodontosaurus specimen elucidates the unique ventilatory macroevolution of ornithischian dinosaurs

    Viktor J Radermacher et al.
    A new specimen of Heterodontosaurus elucidates how ornithischian dinosaurs evolved a body plan substantially different from that of other dinosaurs and what these differences meant for their breathing.
    1. Developmental Biology

    Computational 3D histological phenotyping of whole zebrafish by X-ray histotomography

    Yifu Ding et al.
    X-ray histotomography produces the first 3-dimensional images with the combined submicron resolution, centimeter fields-of-view, soft-tissue contrast, and potential throughput to enable quantitative, histopathological and centimeter-scale phenotyping for whole-organism phenomics.
    1. Evolutionary Biology

    Preservation of three-dimensional anatomy in phosphatized fossil arthropods enriches evolutionary inference

    Achim H Schwermann et al.
    X-ray imaging reveals well-preserved internal characters in mineralized arthropods from the Paleogene, urging the reexamination of previously neglected fossil collections.
    1. Biochemistry and Chemical Biology

    Changes in ferrous iron and glutathione promote ferroptosis and frailty in aging Caenorhabditis elegans

    Nicole L Jenkins et al.
    As worms age reduced glutathione together with increased ferrous iron increases frailty and leads to ferroptosis, which is amenable to therapeutic intervention.
    1. Ecology
    2. Evolutionary Biology

    Heart fossilization is possible and informs the evolution of cardiac outflow tract in vertebrates

    Lara Maldanis et al.
    The discovery of a fossil heart in Rhacolepis buccalis demonstrates that it is possible to scrutinize the fossil record for important clues on cardiac structure and evolution.

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