An injectable gellan gum-based hydrogel that inhibits Staphylococcus aureus for infected bone defect repair

2021 ◽  
Author(s):  
Laijun Xu ◽  
Qing Ye ◽  
Jiaojiao Yang ◽  
xie jing ◽  
wentao jiang ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Bone Defect ◽  
Bone Defects ◽  
Gellan Gum ◽  
Anatomical Structures ◽  
Bone Defect Repair ◽  
Clinical Challenge ◽  
Defect Repair ◽  
Advanced Biomaterials

The treatment of infected bone defects in complex anatomical structures, such as oral and maxillofacial structures, remains an intractable clinical challenge. Therefore, advanced biomaterials that have excellent anti-infection activity and...

Nano-Hydroxyapatite Scaffold Based on Recombinant Human Bone Morphogenetic Protein 2 and Its Application in Bone Defect Repair

2021 ◽  
Vol 17 (7) ◽  
pp. 1330-1338
Author(s):  
Shibai Zhu ◽  
Xiaotian Zhang ◽  
Xi Chen ◽  
Yiou Wang ◽  
Shanni Li ◽  
...  
Keyword(s):  
Bone Defect ◽  
Bone Defects ◽  
Bone Morphogenetic Protein 2 ◽  
Artificial Bone ◽  
Bone Defect Repair ◽  
Morphogenetic Protein ◽  
Human Bone Morphogenetic Protein ◽  
Defect Repair ◽  
Hydroxyapatite Scaffold ◽  
Recombinant Human Bone

The best way in which to prepare scaffolds with good biological properties is an urgent problem in the field of tissue engineering. In this paper we discuss the preparation of nano-hydroxyapatite scaffold of recombinant human bone morphogenetic protein-2 (rhBMP-2) and its application in bone defect repair. rhBMP-2 reagent was dissolved in 1 mol/L sodium dihydrogen phosphate solution, and the rhBMP-2 solution was added to the nano-hydroxyapatite artificial bone with a 100 μL glass micro dropper at the rate of 10 drops/min to obtain Nano-HA/rhBMP-2 composite artificial bone. In in vivo experiments, rabbits were fixed on an operating table, a 2 cm longitudinal incision was made in the middle part of the radial forearm, and the radius was cut with a wire saw and periosteum, 2.5 cm away from the distal radius. After washing the wound with normal saline, Adv-hBMP-2/MC3T3-E1 nano-HA composite artificial bone, MC3T3-E1 nan-HA composite artificial bone, or Nano-HA artificial bone were implanted in different groups. The artificial bone scaffold prepared in this study has a stronger ability to repair bone defects than the alternatives, and is a promising prospect for the clinical treatment of bone defects.

scholarly journals Bone defect repair on the alveolar wall of the maxillary sinus using collagen membranes and temporal fascia: an experimental study in monkeys

2011 ◽  
Vol 77 (4) ◽  
pp. 439-446 ◽  
Author(s):  
Adalberto Novaes Silva ◽  
José Américo de Oliveira ◽  
Maria Célia Jamur ◽  
José Ari Gualberto Junqueira ◽  
Vani Maria Correa ◽  
...  
Keyword(s):  
Experimental Study ◽  
Maxillary Sinus ◽  
Bone Defect ◽  
Alveolar Wall ◽  
Bone Defect Repair ◽  
Temporal Fascia ◽  
Defect Repair ◽  
Collagen Membranes

Clay-based nanocomposite hydrogel with attractive mechanical properties and sustained bioactive ion release for bone defect repair

2021 ◽  
Author(s):  
Xinyun Zhai ◽  
Changshun Ruan ◽  
Jie Shen ◽  
Chuping Zheng ◽  
Xiaoli Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bone Defect ◽  
Nanocomposite Hydrogel ◽  
Ion Release ◽  
Bone Defect Repair ◽  
Defect Repair ◽  
Gradual Release

Using nanoclay as the physical crosslinker, a novel clay-based nanocomposite hydrogel with attractive mechanical properties has be obtained, and the gradual release of intrinsic Mg2+ and Si4+ endows the system with excellent osteogenesis.

Injectable gel graft for bone defect repair

2014 ◽  
Vol 9 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Josephine Fang ◽  
Zhi Yang ◽  
ShihJye Tan ◽  
Charisse Tayag ◽  
Marcel E Nimni ◽  
...  
Keyword(s):  
Bone Defect ◽  
Bone Defect Repair ◽  
Defect Repair

Local Elimination of Senescent Cells Promotes Bone Defect Repair during Aging

2022 ◽  
Author(s):  
Xiaotao Xing ◽  
Haisen Huang ◽  
Xin Gao ◽  
Jian Yang ◽  
Qi Tang ◽  
...  
Keyword(s):  
Bone Defect ◽  
Bone Defect Repair ◽  
Defect Repair

PLGA/TCP composite scaffold incorporating bioactive phytomolecule icaritin for enhancement of bone defect repair in rabbits

2013 ◽  
Vol 9 (5) ◽  
pp. 6711-6722 ◽  
Author(s):  
S.-H. Chen ◽  
M. Lei ◽  
X.-H. Xie ◽  
L.-Z. Zheng ◽  
D. Yao ◽  
...  
Keyword(s):  
Bone Defect ◽  
Composite Scaffold ◽  
Bone Defect Repair ◽  
Defect Repair

Animal Models of Bone Defect Repair

2020 ◽  
pp. 241-260
Author(s):  
Yuehuei H. An ◽  
Richard J. Friedman
Keyword(s):  
Animal Models ◽  
Bone Defect ◽  
Bone Defect Repair ◽  
Defect Repair

scholarly journals Irregular bone defect repair via tissue-engineered periosteum approach in rabbit model.

2019 ◽  
Author(s):  
Lin Zhao ◽  
Jia-Jia Yu ◽  
Cangyu Zhang ◽  
Xiuhui Wang
Keyword(s):  
Bone Formation ◽  
Bone Defect ◽  
Rabbit Model ◽  
Long Bone ◽  
3D Scaffold ◽  
Promising Alternative ◽  
Bone Defect Repair ◽  
Defect Repair ◽  
Group 3 ◽  
Group 2

Abstract Background As an alternative of bone grafts for defect repair, tissue engineering is much promising for clinical application. In previous studies, we have succeeded in repair of long bone defect with homemade tissue-engineered periosteum (TEP), of which is fabraicated by incorporating osteogenically induced mesenchymal stem cells (MSCs) of rabbits with a scaffold of small intestinal submucosa (SIS).Methods In this study, we are aimed to discuss the feasibility of allogenic irregular bone defect repair with the TEP. Thirty-six rabbits whose scapulas were subtotally resected to establish large irregular bone defects model in allogenic rabbits. The defects were treat respectively with TEP (Group 1, n=12), allogenic deproteinized bone (DPB) (Group 2, n=12) and hybrid of TEP and DPB (Group 3, n=12). At 4, 8, and 12 weeks after surgery, the rabbits were sacrificed, and the implants were harvested. X-ray radiographic and histological examinations were performed.ResultsThe findings suggested that the radiographic score in TEP-DPB hybrided implantation (Group 3) was higher than TEP or DPB grafting only (p<0.05).But that was inconsistent with histological findings, which Group1 appeared to possess significantly higher bone formation than Group 2 (p<0.05) and Group3 has higher new bone volume than that of Group 2 (p<0.05).Conclusion We conclude that TEP is a promising alternative in repair of large irregular bone defect.DPB served as a 3D scaffold in combining TEP could provide mechanical support and shaping guide, but hinder new bone formation via TEP approach due to retard degradation.

Sign in / Sign up

Export Citation Format

Share Document