期刊
TISSUE ENGINEERING PART A
卷 15, 期 7, 页码 1501-1511出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ten.tea.2008.0367
关键词
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An in situ crosslinkable, biodegradable, methacrylate-endcapped poly(D,L-lactide-co-epsilon-caprolactone) in which crosslinkage is achieved by photoinitiators was developed for bone tissue regeneration. Different combinations of the polymer with bone marrow-derived mesenchymal stem cells (BMSCs) and alpha-tricalcium phosphate (alpha-TCP) were tested in a unicortical tibial defect model in eight goats. The polymers were randomly applied in one of three defects (6.0 mm diameter) using a fourth unfilled defect as control. Biocompatibility and bone-healing characteristics were evaluated by serial radiographies, histology, histomorphometry, and immunohistochemistry. The results demonstrated cell survival and proliferation in the polymer-substituted bone defects. The addition of alpha-TCP was associated with less expansion and growth of the BMSCs than other polymer composites.
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