Bone Regeneration Using Bone Morphogenetic Protein-2 and Biphasic Calcium Phosphate With and Without Collagen Membrane in Calvarial Standardized Defects: An In Vivo Microcomputed Tomographic Experiment in Rats

2016 ◽  
Vol 36 ◽  
pp. s161-s170 ◽  
Author(s):  
Nuha Al-Omar ◽  
Montaser Al-Qutub ◽  
Sundar Ramalingam ◽  
Mohammad Al-Kindi ◽  
Nasser Nooh ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Bone Regeneration ◽  
Bone Morphogenetic Protein ◽  
Biphasic Calcium Phosphate ◽  
Bone Morphogenetic Protein 2 ◽  
Collagen Membrane ◽  
Morphogenetic Protein

scholarly journals Bone Regeneration of Peri-Implant Defects Using a Collagen Membrane as a Carrier for Recombinant Human Bone Morphogenetic Protein-2

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yoo-Kyung Sun ◽  
Jae-Kook Cha ◽  
Daniel Stefan Thoma ◽  
So-Ra Yoon ◽  
Jung-Seok Lee ◽  
...  
Keyword(s):  
Bone Regeneration ◽  
Bone Morphogenetic Protein ◽  
Bone Morphogenetic Protein 2 ◽  
Control Group ◽  
Collagen Membrane ◽  
Treatment Groups ◽  
Morphogenetic Protein ◽  
Human Bone Morphogenetic Protein ◽  
Bone To Implant Contact ◽  
And Control

This study is designed to determine the effect of collagen membrane (CM) soaked with bone morphogenetic protein-2 (rhBMP-2) for the treatment of peri-implant dehiscence defects. Material and Methods. Three treatment groups were allocated at each defect in 5 dogs: (i) collagenated synthetic bone (OC) and CM soaked with rhBMP-2 (BMP group), (ii) OC and CM soaked with saline (nonBMP group), and (iii) no further treatment (control group). Titanium pins were used to stabilize the membranes in two dogs. Radiographic and histomorphometric analyses were performed 4 weeks later. Results. The median augmented volumes were 4.27 mm3, 6.24 mm3, and 2.75 mm3 in the BMP, nonBMP, and control groups, respectively; the corresponding median first bone-to-implant contact (fBIC) distances were 3.25 mm, 3.08 mm, and 2.56 mm (P>0.05). The placement of pins (with the BMP and nonBMP groups pooled) significantly improved bone regeneration: the augmented volumes were 17.60 mm3 with pins and 3.68 mm3 without pins (P=0.024), with corresponding fBIC distances of 2.25 mm and 3.31 mm, respectively (P<0.001). Conclusions. The addition of rhBMP-2 to CM failed to improve bone regeneration of peri-implant dehiscence defects compared to using an unsoaked CM after 4 weeks. However, the stabilization of CMs using pins positively influenced the outcomes.

scholarly journals Sustained Release of Bone Morphogenetic Protein-2 through Alginate Microbeads Enhances Bone Regeneration in Rabbit Tibial Metaphyseal Defect Model

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2600
Author(s):  
Junhyung Kim ◽  
Seoyun Lee ◽  
Yonghyun Choi ◽  
Jonghoon Choi ◽  
Byung-Jae Kang
Keyword(s):  
Sustained Release ◽  
Bone Regeneration ◽  
Bone Morphogenetic Protein ◽  
Bone Volume ◽  
Bone Morphogenetic Protein 2 ◽  
Enzyme Linked Immunosorbent Assay ◽  
Micro Computed Tomography ◽  
Combined Application ◽  
Morphogenetic Protein

Bone morphogenetic protein-2 (BMP-2) is widely used to enhance bone regeneration. However, because of its short half-life and rapid disappearance, large amounts of BMP-2 are needed, leading to unintended side effects. In this study, BMP-2-encapsulated alginate microbeads (AM) were used to enhance bone regeneration. Enzyme-linked immunosorbent assay confirmed the sustained release of BMP-2 from AM. Vascular endothelial growth factor (VEGF)-adsorbing aptamer-conjugated hydroxyapatite (Apt-HA) was used for osteoconduction and dual delivery of VEGF and BMP-2. For in vivo bone regeneration evaluation, the grafts (1) Apt-HA + phosphate-buffered saline (PBS), (2) Apt-HA + AM without BMP-2, (3) Apt-HA + BMP-2, and (4) Apt-HA + AM encapsulated with BMP-2 were implanted into rabbit tibial metaphyseal defects. After four weeks, micro-computed tomography (CT), histological, and histomorphometric analyses were performed to evaluate bone regeneration. The Apt-HA + AM with BMP-2 group revealed a significantly higher new bone volume and bone volume/total volume (BV/TV) in both cortical and trabecular bone than the others. Furthermore, as evaluated by histomorphometric analysis, BMP-2 AM exhibited a significantly higher bone formation area than the others, indicating that AM could be used to efficiently deliver BMP-2 through sustained release. Moreover, the combined application of BMP-2-encapsulated Apt-HA + AM may effectively promote bone regeneration.

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