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4 results for “Collagen structure”
Data from: Nanoscale characterization of collagen structural responses to in situ loading in rat Achilles tendons
<p>This dataset is originally used in:</p> <p>I. Silva Barreto, M. Pierantoni, M. Hammerman, E. Törnquist, S. Le Cann, A. Diaz, J. Engqvist, M. Liebi, P. Eliasson, H. Isaksson, <em>Nanoscale characterization of collagen structural responses to in situ loading in rat Achilles tendons</em>, <strong>Matrix Biology</strong> (2022), doi:https://doi.org/10.1016/j.matbio.2022.11.006</p> <p><strong>Abstract:</strong> The specific viscoelastic mechanical properties of Achilles tendons are highly dependent on the structural characteristics of collagen at and between all hierarchical levels. Research has been conducted on the deformation mechanisms of positional tendons and single fibrils, but knowledge about the coupling between the whole tendon and nanoscale deformation mechanisms of more commonly injured energy-storing tendons, such as Achilles tendons, remains sparse. By exploiting the highly periodic arrangement of tendons at the nanoscale, <em>in situ</em> loading of rat Achilles tendons during small-angle X-ray scattering acquisition was used to investigate the collagen structural response during load to rupture, cyclic loading and stress relaxation. The fibril strain was substantially lower than the applied tissue strain. The fibrils strained linearly in the elastic region of the tissue, but also exhibited viscoelastic properties, such as an increased stretchability and recovery during cyclic loading and fibril strain relaxation during tissue stress relaxation. We demonstrate that the changes in the width of the collagen reflections could be attributed to strain heterogeneity and not changes in size of the coherently diffracting domains. Fibril strain heterogeneity increased with applied loads and after the toe region, fibrils also became increasingly disordered. Additionally, a thorough evaluation of radiation damage was performed. In conclusion, this study clearly displays the simultaneous structural response and adaption of the collagen fibrils to the applied tissue loads and provide novel information about the transition of loads between length scales in the Achilles tendon.</p> <p>Any queries related to the data set or the publication may be directed to Hanna Isaksson by email (hanna.isaksson@bme.lth.se).</p>
Macrophages expressing Macrophage Receptor with Collagen Structure Attenuate Liver Fibrosis Through a Tissue Restoration Phenotype [macrophage_liverFibrosis_scRNA-seq]
GEO Series GSE291710. Mus musculus. 2 samples. Type: Expression profiling by high throughput sequencing.
Macrophages expressing Macrophage Receptor with Collagen Structure Attenuate Liver Fibrosis Through a Tissue Restoration Phenotype [macrophage_liverFibrosis_GeoMx_spatial-seq]
GEO Series GSE291711. Mus musculus. 159 samples. Type: Other.
Clinical and Structural Outcome of Conventional Versus Accelerated Corneal Collagen Cross-linking (CXL).
ClinicalTrials.gov study NCT02883478. IPD Sharing: NO. Countries: 0. Publications: 0.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.