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This review describes research on selected peptide sequences that affect cell adhesion as it applies in orthopedic applications. Of particular interest are the integrin-binding RGD peptides and heparin-binding peptides. The influence of these peptides on cell adhesion is described. Cell adhesion...
Encapsulated-cell therapy is an emerging technology that entails implantation of cell-containing devices that secrete therapeutic factors. One potential application of this technology is the delivery of neurotrophic factors to treat neurodegenerative disease. These devices typically use an...
To date, many approaches to engineering new tissue have emerged and they have all relied on vascularization from the host to provide permanent engraftment and mass transfer of oxygen and nutrients. Although this approach has been useful in many tissues, it has not been as successful in thick,...
Previously, we reported the implantation of a single tissue engineered leaflet in the posterior position of the pulmonary valve in a lamb model. The major problems with this leaflet replacement were the scaffold's inherent stiffness, thickness, and nonpliability. We have now created a scaffold...
Using an established rat peripheral nerve regeneration model, we investigated the role of glial growth factor (GGF) in nerve regeneration in combination with a novel bioresorbable poly(lactic-co-glycolic) acid (PLGA) guide in vivo . Schwann cells, established from a 1-cm segment of excised rat...
Mouse L929 fibroblasts transfected to express a secreted form of human alkaline phosphatase (SEAP) were encapsulated in ~400-μm poly(hydroxyethyl methacrylate-co-methyl methacrylate) (HEMA-MMA) microcapsules as a baseline for the use of genetically engineered cells in encapsulation therapy....
Small diameter hydroxyethyl methacrylate-methyl methacrylate (HEMA-MMA; 75% HEMA) microcapsules containing an aggregate of viable rat hepatoma H4IIEC3 cells, after implantation into an omental pouch in Wistar rats, contained viable cells at 7 days but not 14 days. A similar transplantation of...
Alternatives to autografts have long been sought for use in bridging neural gaps. Many entubulation materials have been studied, although with generally disappointing results in comparison with autografts. The purpose of this study was to design a more effective neural guidance conduit, to...
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