Results 101 to 110 of about 508,986 (323)

Bone Marrow Aspirate Concentrate-Enhanced Marrow Stimulation of Chondral Defects

open access: yesStem Cells International, 2017
Mesenchymal stem cells (MSCs) from bone marrow play a critical role in osteochondral repair. A bone marrow clot forms within the cartilage defect either as a result of marrow stimulation or during the course of the spontaneous repair of osteochondral ...
Henning Madry   +4 more
doaj   +1 more source

Conditioned Media from Mechanically Stimulated Macrophages Upregulate Osteogenic Genes in Human Mesenchymal Stromal Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Bone fracture healing is a complex, timely orchestrated scenario involving multiple cell types and a plethora of cytokines and regulatory factors. To gain further insight, an in vitro model to a) study macrophage polarization under mechanical load in a fibrin hydrogel and b) subsequently assess the effect of conditioned media derived from macrophages ...
Anne Géraldine Guex   +4 more
wiley   +1 more source

Evaluation qualitative macroscopique et microscopique du grasset chez un modèle expérimental d'arthrose canine 90 jours après section du ligament croisé crânial [PDF]

open access: yes, 2013
La transection du ligament croisé crânial (CCLT) est une méthode couramment admise d'induction expérimentale d'arthrose (OA) au niveau du grasset chez le chien.
Arnault, Fabien   +6 more
core  

Molecular Mechanisms of Extracellular Vesicle Biogenesis and Their Impact on the Design of Custom EVs

open access: yesAdvanced Healthcare Materials, EarlyView.
Extracellular vesicles (EVs) are pivotal mediators of intercellular communication and disease, yet the fundamental mechanisms controlling their biogenesis and cargo selection remain unclear. This limitation hinders their diagnostic utility and therapeutic development.
Luís Carvalho Ferraz   +2 more
wiley   +1 more source

An Organ‐on‐Chip Platform for Strain‐Controlled, Tissue‐Specific Compression of Cartilage and Mineralized Osteochondral Interface to Study Mechanical Overloading in Osteoarthritis

open access: yesAdvanced Healthcare Materials, EarlyView.
A mechanically active OsteoChondral Unit (OCU)‐on‐Chip platform mimicking the OCU's functional anatomy and the strain gradient across the osteochondral interface is presented. Upon compartment‐specific hyperphysiological compression, the model replicates mechanisms observed in osteoarthritis (OA) progression, such as calcium crystal accumulation ...
Andrea Mainardi   +10 more
wiley   +1 more source

Dietary fat and the prevalence of hand osteoarthritis: data from the osteoarthritis initiative [PDF]

open access: yes, 2017
OBJECTIVE: To determine the effect of total dietary fat intake on the prevalence of hand osteoarthritis (HOA) utilizing data collected in the Osteoarthritis Initiative (OAI) study cohort. METHODS: This is an observational cross-sectional study. Subjects
Lacy, Alissa
core  

Conducting Polymer Coatings for Bioelectronic Arthroscopy Probes

open access: yesAdvanced Healthcare Materials, EarlyView.
Schematic of a poly(3,4‐ethylenedioxythiophene, PEDOT)‐coated arthroscopy probe, featuring a semi‐spherical probe with 38 microelectrodes, used to measure streaming potential generated during cartilage indentation in the knee. The inset includes a scanning electron microscopy (SEM) image of the porous PEDOT layer deposited on a nickel‐phosphorus coated
Sara Ebrahimi   +6 more
wiley   +1 more source

Mechanical Reinforced and Self‐healing Hydrogels: Bioprinted Biomimetic Methacrylated Collagen Peptide‐Xanthan Gum Constructs for Ligament Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Readily UV‐curing and self‐healing methacrylated collagen peptide (COPMA) hydrogels are developed with tunable mechanical properties. As the interpenetrating network between COPMA and xanthan gum (XG), COPMA‐XG bioinks show improved mechanical properties, printability, and stability, compared to COPMA or XG.
Hongjuan Weng   +6 more
wiley   +1 more source

A Modular Perfusion Bioreactor Platform for Simulating Bone Regeneration and Fracture Healing: Integrating Mechanical Loading and Dual Perfusion for Advanced In Vitro Models

open access: yesAdvanced Healthcare Materials, EarlyView.
A modular bioreactor platform was developed in order to replicate bone homeostasis and pathology, thereby integrating mechanical loading, dynamic perfusion, and a 3D‐printed microfluidic chamber. With precise control of environmental parameters and dual perfusion for composite tissue models, the system enhances physiological relevance for studying bone
Moritz Pfeiffenberger   +8 more
wiley   +1 more source

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