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Bone morphogenetic protein 2 (BMP2) is a potent osteoinductive cytokine that plays crucial roles in bone repair. However, large amounts of BMP2 are required to induce sufficient bone formation in humans possibly due to a feedback response of BMP antagonists. The engineered BMP2 variant L51P is deficient in BMP receptor type I activation but maintains affinity for BMP antagonists and can allow for...
The role of CCN family proteins has been proven to be of extreme importance in the process of cartilage development and endochondral ossification. The second member, CCN2, consists of 4 conserved modules that interact with a number of cofactors to display multiple functions. Although the potentially therapeutic effect of intact CCN2 on cartilage regeneration has been indicated by a number of studies,...
Recently, there have been remarkable advances in medical techniques for regenerating bone defects. To determine the degree of bone regeneration, it is essential to develop a new method that can analyze microstructure and related mechanical function. Here, quantitative analysis of the orientation distribution of biological apatite (BAp) crystallites by a microbeam X-ray diffractometer system is proposed...
The bone anabolic effect of rhFGF2 is attributed to activation of proliferation and differentiation of osteoblasts. Concomitant up-regulation of Runx2 and Bmp2 implies a coordinative function of FGF/FGFR signaling on osteoblast differentiation.Duration and tissue concentration of growth factor exposure are important in tissue regeneration. This study analyzed the availability of rhFGF2 using a sustained...
This study investigated the effects of dual delivery of vascular endothelial growth factor (VEGF) and bone morphogenetic protein-2 (BMP-2) for bone regeneration in a rat cranial critical size defect. Four groups of scaffolds were generated with VEGF (12 μg), BMP-2 (2 μg), both VEGF (12 μg) and BMP-2 (2 μg), or no growth factor released from gelatin microparticles incorporated within the scaffold pores...
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