Results 121 to 130 of about 145,083 (306)

Avulsion fracture of the olecranon for the diagnosis of osteogenesis imperfecta case report

open access: yesActa Orthopaedica et Traumatologica Turcica, 2021
Avulsion fractures of olecranon in children are very rare and often associated with osteogenesis imperfecta. In this study we report a child who has been followed for constitutional growth retardation for five years.
Abdurrahman Ozcelik   +3 more
doaj  

BMP2 commitment to the osteogenic lineage involves activation of Runx2 by DLX3 and a homeodomain transcriptional network

open access: yes, 2006
Several homeodomain (HD) proteins are critical for skeletal patterning and respond directly to BMP2 as an early step in bone formation. RUNX2, the earliest transcription factor proven essential for commitment to osteoblastogenesis, is also expressed in ...
Aberg   +71 more
core   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

open access: yesAdvanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang   +6 more
wiley   +1 more source

Micro-/nano-structured zirconia surface promotes osteogenic differentiation of human bone marrow mesenchymal stem cells by reducing pyroptosis under inflammatory conditions

open access: yesJournal of Dental Sciences
Background/purpose: Promoting osteogenesis under inflammatory conditions holds promise for preventing and mitigating peri-implantitis. Cell pyroptosis inhibits osteoblast-mediated bone formation.
Hui-Min Wang   +6 more
doaj   +1 more source

Multifunctional Bioactive Scaffold Facilitating BMSCs‐Driven Osteogenesis and Vascularization in Critical‐Sized Bone Defect Repair

open access: yesAdvanced Science, EarlyView.
A dual‐network bFGF@CB‐gel integrates: i) ChSMA scaffold (mechanical support/BMSCs delivery); ii) BC carrier (sustained bFGF release via EGFL/Itga2b and COMP/PI3K/AKT for adhesion/osteogenesis); iii) bFGF/PI3K/AKT/eNOS for angiogenesis. This rational, synergistic design addresses CSD bone regeneration challenges.
Yunze Feng   +12 more
wiley   +1 more source

Mechanically Robust Biodegradable Stents With Theragenerative Vascular Responses via Combined 3D Printing and Janus Nanoengineering

open access: yesAdvanced Science, EarlyView.
This work introduces a theragenerative 3D‐printed biodegradable stent with Janus nanoarchitecture for spatially controlled vascular healing. A luminal tantalum ion–implanted surface accelerates endothelialization and hemocompatibility, while an abluminal sirolimus/poly‐L‐lactic acid–tantalum layer provides sustained drug release and suppresses smooth ...
Jong Hwa Seo   +19 more
wiley   +1 more source

Millimeter‐Scale Dual‐Opposing RNA‐Gradient Hydrogel for Interfacial Gene Silencing

open access: yesAdvanced Science, EarlyView.
A branched microfluidic platform enables the fabrication of millimeter‐scale hydrogels with dual‐opposing RNA‐gradients for precise spatial control of cell gene expression. This device allows for the generation of multiple constructs at once, offering potential for future engineering of complex tissue interfaces with improved physiological relevance ...
Tyler Hoffman   +11 more
wiley   +1 more source

Osteogenesis Imperfecta [PDF]

open access: yesArchives of Disease in Childhood, 1956
J G, DAVEL, T, FICHARDT, D, VAN DER SPUY
openaire   +2 more sources

Senomorphic Small Extracellular Vesicles Delivered by a Tissue‐Adhesive α‐Lipoic‐Acid Hydrogel Enable Immuno‐Rejuvenation for Bone‐Tendon Interface Regeneration

open access: yesAdvanced Science, EarlyView.
This work identifies M1 macrophage‐mediated inflammation as a key driver of BMSC senescence and bone microstructural deterioration at the enthesis. A tissue‐adhesive hydrogel delivering senomorphic small extracellular vesicles suppresses this inflammatory‐senescent cascade and enhances BMSC resilience by inhibiting the cGAS‐STING‐NF‐κB pathway.
Lingzhi Kong   +8 more
wiley   +1 more source

Fibroblasts inhibit osteogenesis by regulating nuclear-cytoplasmic shuttling of YAP in mesenchymal stem cells and secreting DKK1

open access: yesBiological Research
Background Fibrous scars frequently form at the sites of bone nonunion when attempts to repair bone fractures have failed. However, the detailed mechanism by which fibroblasts, which are the main components of fibrous scars, impede osteogenesis remains ...
Fei Huang   +6 more
doaj   +1 more source

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