Bone regeneration and gene expression in bone defects under healthy and osteoporotic bone conditions using two commercially available bone graft substitutes

被引:14
|
作者
van Houdt, Claire I. A. [1 ]
Tim, Carla R. [1 ,2 ]
Crovace, Murilo C. [3 ]
Zanotto, Edgar D. [3 ]
Peitl, Oscar [3 ]
Ulrich, Dietmar J. O. [4 ]
Jansen, John A. [1 ]
Parizotto, Nivaldo A. [5 ]
Renno, Ana C. [5 ]
van den Beucken, Jeroen J. J. P. [1 ]
机构
[1] Radboudumc, Dept Biomat, NL-6500 HB Nijmegen, Netherlands
[2] Fed Univ Sao Carlos UFSCar, Dept Physiotherapy, BR-13565905 Sao Carlos, SP, Brazil
[3] Fed Univ Sao Carlos UFSCar, Dept Mat Engn, BR-13565905 Sao Carlos, SP, Brazil
[4] Radboudumc, Dept Plast Surg, NL-6500 HB Nijmegen, Netherlands
[5] Fed Univ Sao Paulo UNIFESP, Dept Biosci, BR-15011000 Santos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
glass-ceramic; inorganic bovine bone; gene-expression; bone regeneration; osteoporosis; BIOACTIVE GLASS; IN-VITRO; BIO-OSS((R)) PARTICLES; ILIAC CREST; RAT; CELLS; OSSEOINTEGRATION; HYDROXYAPATITE; COMPLICATIONS; DEGRADATION;
D O I
10.1088/1748-6041/10/3/035003
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Biosilicate (R) and Bio-Oss (R) are two commercially available bone substitutes, however, little is known regarding their efficacy in osteoporotic conditions. The purpose of this study was to evaluate the osteogenic properties of both materials, at tissue and molecular level. Thirty-six Wistar rats were submitted to ovariectomy (OVX) for inducing osteoporotic conditions and sham surgery (SHAM) as a control. Bone defects were created in both femurs, which were filled with Biosilicate (R) or Bio-Oss (R), and empty defects were used as control. For the healthy condition both Biosilicate (R) and Bio-Oss (R) did not improve bone formation after 4 weeks. Histomorphometric evaluation of osteoporotic bone defects with bone substitutes showed more bone formation, significant for Bio-Oss (R). Molecular biological evaluation was performed by gene-expression analysis (Runx-2, ALP, OC, OPG, RANKL). The relative gene expression was increased with Biosilicate (R) for all genes in OVX rats and for Runx-2, ALP, OC and RANKL in SHAM rats. In contrast, with Bio-Oss (R), the relative gene expression of OVX rats was similar for all three groups. For SHAM rats it was increased for Runx-2, ALP, OC and RANKL. Since both materials improved bone regeneration in osteoporotic conditions, our results suggest that bone defects in osteoporotic conditions can be efficiently treated with these two bone substitutes.
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页数:13
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