In vivo approach of calcium deficient hydroxyapatite filler as bone induction factor

2019 ◽  
Vol 99 ◽  
pp. 999-1006 ◽  
Author(s):  
G.B.C. Cardoso ◽  
A. Tondon ◽  
L.R.B. Maia ◽  
M.R. Cunha ◽  
C.A.C. Zavaglia ◽  
...  
Keyword(s):  
2017 ◽  
Vol 242 (18) ◽  
pp. 1765-1771 ◽  
Author(s):  
Guinea BC Cardoso ◽  
Erivelto Chacon ◽  
Priscila GL Chacon ◽  
Pedro Bordeaux-Rego ◽  
Adriana SS Duarte ◽  
...  

Our hypothesis was to investigate the fatty acid potential as a bone induction factor. In vitro and in vivo studies were performed to evaluate this approach. Oleic acid was used in a 0.5 wt.% concentration. Polycaprolactone was used as the polymeric matrix by combining solvent-casting and particulate-leaching techniques, with a final porosity of 70 wt.%, investigated by SEM images. Contact angle measurements were produced to investigate the influence of oleic acid on polycaprolactone chains. Cell culture was performed using adipocyte-derived stem cells to evaluate biocompatibility and bioactivity properties. In addition, in vivo studies were performed to evaluate the induction potential of oleic acid addition. Adipocyte-derived stem cells were used to provide differentiation after 21 days of culture. Likewise, information were obtained with in vivo data and cellular invagination was observed on both scaffolds (polycaprolactone and polycaprolactone /oleic acid); interestingly, the scaffold with oleic acid addition demonstrated that cellular migrations are not related to the surrounding tissue, indicating bioactive potential. Our hypothesis is that fatty acid may be used as a potential induction factor for bone tissue engineering. The study’s findings indicate oleic acid as a possible agent for bone induction, according to data on cell differentiation, proliferation, and migration. Impact statement The biomaterial combined in this study on bone regeneration is innovative and shows promising results in the treatment of bone lesions. Polycaprolactone (PCL) and oleic acid have been studied separately. In this research, we combined biomaterials to assess the stimulus and the speed of bone healing.


Bone ◽  
1998 ◽  
Vol 23 (5) ◽  
pp. 433-436 ◽  
Author(s):  
S.C.F. Rawlinson ◽  
G. Zaman ◽  
J.R. Mosley ◽  
A.A. Pitsillides ◽  
L.E. Lanyon

1992 ◽  
Vol 3 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Ugo Ripamonti ◽  
A. Hari Reddi

Bone has considerable potential for repair as illustrated by the phenomenon of fracture healing. Repair and regeneration of bone recapitulate the sequential stages of development. It is well known that demineralized bone matrix has the potential to induce new bone formation locally at a heterotopic site of implantation. The sequential development of bone is reminiscent of endochondral bone differentiation during bone development. The collagenous matrix-induced bone formation is a prototype model for matrix-cell interactions in vivo. The developmental cascade includes migration of progenitor cells by chemotaxis, attachment of cells through fibronectin, proliferation of mesenchymal cells, and differentiation of bone. The bone inductive protein, osteogenin, was isolated by heparin affinity chromatography. Osteogenin initiates new bone formation and is promoted by other growth factors. Recently, the genes for osteogenin and related bone morphogenetic proteins were cloned and expressed. Recombinant osteogenin is osteogenic in vivo. The future prospects for bone induction are bright, and this is an exciting frontier with applications in oral and orthopaedic surgery.


2010 ◽  
Vol 144 (2) ◽  
pp. 190-195 ◽  
Author(s):  
Zhen-Yu Lin ◽  
Zhi-Xia Duan ◽  
Xiao-Dong Guo ◽  
Jing-Feng Li ◽  
Hong-Wei Lu ◽  
...  

2013 ◽  
Vol 33 (6) ◽  
pp. 3336-3345 ◽  
Author(s):  
Haitao Pan ◽  
Shaofei Hao ◽  
Qixin Zheng ◽  
Jingfeng Li ◽  
Jin Zheng ◽  
...  
Keyword(s):  

2012 ◽  
Vol 162 (3) ◽  
pp. 646-653 ◽  
Author(s):  
Marta Kisiel ◽  
Manuela Ventura ◽  
Oommen P. Oommen ◽  
Anu George ◽  
X. Frank Walboomers ◽  
...  

2013 ◽  
Vol 8 (3) ◽  
pp. 035005 ◽  
Author(s):  
Jingfeng Li ◽  
Qixin Zheng ◽  
Xiaodong Guo ◽  
Zhenwei Zou ◽  
Yudong Liu ◽  
...  
Keyword(s):  

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