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9 results for “skeletal plates”
Fig. 62. Eocrinoid brachiolar plates A in An early Cambrian fauna of skeletal fossils from the Emyaksin Formation, northern Siberia
Fig. 62. Eocrinoid brachiolar plates A (A–H) and associated thecal-plates (I–L) from lower Cambrian Emyaksin Formation, Bol'shaya Kuonamka River, Anabar Uplift, Siberia; sample 7/42.3. A. Twisted, elongated, brachiolar-plate, SMNH Ec 31488, A1, view of longitudinal articulation (proximal articulation to the base); A2, lateral, oral view (proximal articulation to the base); A3, close-up of proximal articulations with depression surrounding the aboral canal (to the left) and oral groove on the left (composed of half median-furrow and lateral depression to the right); A4, oblique view of distal (upward) and longitudinal articulations. B. Plates articulated longitudinally with irregularly undulose proximal and distal articulation facets, SMNH Ec 314899; B1, oral view with aboral canal visible upward due to the slightly eroded floor of oral, median furrow (proximal articulation to the base); B2, oblique view of proximal articulation with crescentic concavity (aboral canal most probably secondary filled) and distinct tripartite food-groove. C. Oral view of 2 plates articulated longitudinally with undulose, offset proximal (to the base) and distal articulations, SMNH Ec 31490. D. Distal view of isolated brachiolar plates with concave articulation, wide oral-groove (upper-left) and large, oval aboral-groove (upper-right), SMNH Ec 31491. E. Flat and elongated brachiolar plate, SMNH Ec 31492; E1, oblique view of proximal articulation (aboral canal to the right); E2, oblique aboral view of the longitudinal articulation (made of two longitudinal ridges delimiting aboral canal; to the right), the flat distal (to the top) and the angular proximal articulation (to the base). F. Flat brachiolar-plate in lateral (median) view with flat longitudinal articulation-ridge (aboral canal to the right), SMNH Ec 31493. G. Two articulated brachiolar plates (to the middle) delimiting a large, oval aboral-canal partly preserved in diagenetized matrix with thecal plates of unknown affinity (to the top and base), SMNH Ec 31494. H. Articulated (in the middle, aboral canal filled by exogenous grain) and isolated brachiolar plates partly preserved in diagenetized matrix, SMNH Ec 31495. I–L. Rounded to polygonal, concavo-convex thecal plates of unknown affinity. I. Outer view of plates partly preserved in matrix, SMNH Ec 31496. J, K. Outer views of plates ornamented with meshwork, SMNH Ec 31497 and SMNH Ec 31498, respectively. L. SMNH Ec 31499, slightly broken, rounded thecal-plates; L1, outer-surface ornamented with tubercles; L2, inner and L3, lateral view showing the smouth concave inner surface. Scale bar: 600 μm, except I, 1200 μm.
Skeletal Stability of Le Fort I Osteotomy Using Patient-specific Osteosynthesis Compared to Mini-plate Fixation for Patients With Dentofacial Disharmony
ClinicalTrials.gov study NCT05340036. IPD Sharing: NO. Countries: 1. Publications: 13.
Treatment of Skeletal Class II Malocclusion With Modified Twin-Block Appliance With Clear Plates
ClinicalTrials.gov study NCT05950581. IPD Sharing: NO. Countries: 1. Publications: 7.
Premature aging in growth-plate and periosteum resident skeletal stem cells is responsible for bone loss
GEO Series GSE182540. Mus musculus. 28 samples. Type: Expression profiling by high throughput sequencing.
Data from: Resting zone of the growth plate harbors a unique class of skeletal stem cells
Skeletal stem cells regulate bone growth and homeostasis by generating diverse cell types including chondrocytes, osteoblasts and marrow stromal cells. The emerging model postulates a distinct type of skeletal stem cells closely associated with the growth plate1-4, a special cartilaginous tissue playing critical roles in bone elongation5. The resting zone maintains the growth plate by expressing parathyroid hormone-related protein (PTHrP) that interacts with Indian hedgehog (Ihh) released from the hypertrophic zone6-10, while providing a source of other chondrocytes11. However, the identity of skeletal stem cells and how they are maintained in the growth plate are unknown. Here we show that skeletal stem cells are formed among PTHrP+ chondrocytes within the resting zone of the postnatal growth plate. PTHrP+ chondrocytes expressed a panel of markers for skeletal stem/progenitor cells and uniquely possessed the properties as skeletal stem cells in cultured conditions. Cell lineage analysis revealed that PTHrP+ resting chondrocytes continued to form columnar chondrocytes long term, which underwent hypertrophy and became osteoblasts and marrow stromal cells beneath the growth plate. Transit-amplifying chondrocytes in the proliferating zone, which was concertedly maintained by a forward signal from undifferentiated cells (PTHrP) and a reverse signal from hypertrophic cells (Ihh), provided instructive cues to maintain cell fates of PTHrP+ resting chondrocytes. Our findings unravel a unique somatic stem cell type that is initially unipotent and acquires multipotency at the post-mitotic stage, underscoring the malleable nature of the skeletal cell lineage. This system provides a model in which functionally dedicated stem cells and their niche are specified postnatally and maintained throughout tissue growth by a tight feedback regulation system.
Data from: Resting zone of the growth plate harbors a unique class of skeletal stem cells
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Stimulation of skeletal stem cells in the growth plate promotes linear bone growth.
GEO Series GSE254020. Mus musculus. 8 samples. Type: Expression profiling by high throughput sequencing.
Comparison of Maxillary Protraction Using Tooth-borne Facemask Versus Skeletal Anchorage Chin-plate in Class III Growing Patients
ClinicalTrials.gov study NCT07383259. IPD Sharing: UNDECIDED. Countries: 0. Publications: 0.
Differential ageing of growth plate cartilage determines skeletal proportions
GEO Series GSE114919. Mus musculus; Rattus norvegicus. 60 samples. Type: Expression profiling by high throughput sequencing.
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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.