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Saginova D, Tashmetov E, Kamyshanskiy Y, Tuleubayev B, Rimashevskiy D. Evaluation of Bone Regenerative Capacity in Rabbit Femoral Defect Using Thermally Disinfected Bone Human Femoral Head Combined with Platelet-Rich Plasma, Recombinant Human Bone Morphogenetic Protein 2, and Zoledronic Acid. Biomedicines 2023; 11:1729. [PMID: 37371824 DOI: 10.3390/biomedicines11061729] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
This research aimed to assess the effect of bone allograft combined with platelet-rich plasma (PRP), recombinant human bone morphogenetic protein-2 (rhBMP-2), and zoledronic acid (Zol) on bone formation. A total of 96 rabbits were used, and femoral bone defects (5 mm) were created. The rabbits were divided into four groups: (1) bone allograft with PRP (AG + PRP), (2) bone allograft with rhBMP-2 5 μg (AG + BMP-2), (3) bone allograft with Zol 5 μg (AG + Zol), and (4) bone allograft (AG). A histopathological examination was performed to evaluate bone defect healing after 14, 30, and 60 days. The new bone formation and neovascularization inside the bone allograft was significantly greater in the AG + PRP group compared to AG and AG + Zol groups after 14 and 30 days (p < 0.001). The use of bone allograft with rhBMP-2 induced higher bone formation compared to AG and AG + Zol groups on days 14 and 30 (p < 0.001), but excessive osteoclast activity was observed on day 60. The local co-administration of Zol with a heat-treated allograft inhibits allograft resorption as well as new bone formation at all periods. In conclusion, this study demonstrated that PRP and rhBMP-2, combined with a Marburg bone allograft, can significantly promote bone formation in the early stage of bone defect healing.
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Affiliation(s)
- Dina Saginova
- Center for Applied Scientific Research, National Scientific Center of Traumatology and Orthopaedics Named after Academician N.D. Batpenov, Astana 010000, Kazakhstan
| | - Elyarbek Tashmetov
- Department of Surgical Diseases, Karaganda Medical University, Karaganda 100000, Kazakhstan
| | - Yevgeniy Kamyshanskiy
- Pathology Unit of the University Clinic, Karaganda Medical University, Karaganda 100000, Kazakhstan
| | - Berik Tuleubayev
- Department of Surgical Diseases, Karaganda Medical University, Karaganda 100000, Kazakhstan
| | - Denis Rimashevskiy
- Department of Traumatology and Orthopaedics, Peoples' Friendship University of Russia, Moscow 101000, Russia
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Zhang Z, Zheng Y, Zu J, Zhuang J, Xu G, Yan J, Liu X. Stromal cell-derived factor (SDF)-1α and platelet-rich plasma enhance bone regeneration and angiogenesis simultaneously in situ in rabbit calvaria. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:125. [PMID: 34524548 PMCID: PMC8443516 DOI: 10.1007/s10856-021-06600-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 08/29/2021] [Indexed: 05/25/2023]
Abstract
The current study aimed to evaluate the effects of chemokine stromal cell-derived factor (SDF)-1α and platelet-rich plasma (PRP) on bone formation and angiogenesis, and to assess whether SDF-1α and PRP could function synergistically. Four evenly distributed defects (8 mm in diameter) were generated in the calvarial bones of New Zealand white rabbits. All rabbits received four treatment regimens containing autogenous bone particles (AB), SDF-1α, or PRP. AB group presented significantly less bone formation compared with the other three groups 2 and 4 weeks after surgery. The amount of newly formed bone in the AB+PRP+SDF-1α group was similar to that in the AB + SDF-1α group at the 4-week time-point (p = 0.65), and was much greater than that in the AB and AB+PRP group (p < 0.001). Meanwhile, more new blood vessels were formed in the AB+PRP, AB+SDF-1α, and AB+PRP+SDF-1α group versus the AB group. AB+PRP+SDF-1α group showed statistically increased angiogenesis compared with the AB+PRP and AB+SDF-1α groups (both p < 0.05) after treatment for 2 and 4 weeks. These findings indicated that SDF-1α and PRP might exhibit synergistic effects to promote angiogenesis in early bone regeneration.
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Affiliation(s)
- Zhengye Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China
| | - Yang Zheng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China
| | - Jianing Zu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China
| | - Jinpeng Zhuang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China
| | - Gongping Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China
| | - Jinglong Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China.
| | - Xiaoqi Liu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150001, PR China.
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Sun Y, Myers DR, Nikolov SV, Oshinowo O, Baek J, Bowie SM, Lambert TP, Woods E, Sakurai Y, Lam WA, Alexeev A. Platelet heterogeneity enhances blood clot volumetric contraction: An example of asynchrono-mechanical amplification. Biomaterials 2021; 274:120828. [PMID: 33964792 PMCID: PMC8184644 DOI: 10.1016/j.biomaterials.2021.120828] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 04/01/2021] [Accepted: 04/11/2021] [Indexed: 01/22/2023]
Abstract
Physiological processes such as blood clotting and wound healing as well as pathologies such as fibroses and musculoskeletal contractures, all involve biological materials composed of a contracting cellular population within a fibrous matrix, yet how the microscale interactions among the cells and the matrix lead to the resultant emergent behavior at the macroscale tissue level remains poorly understood. Platelets, the anucleate cell fragments that do not divide nor synthesize extracellular matrix, represent an ideal model to study such systems. During blood clot contraction, microscopic platelets actively pull fibers to shrink the macroscale clot to less than 10% of its initial volume. We discovered that platelets utilize a new emergent behavior, asynchrono-mechanical amplification, to enhanced volumetric material contraction and to magnify contractile forces. This behavior is triggered by the heterogeneity in the timing of a population of actuators. This result indicates that cell heterogeneity, often attributed to stochastic cell-to-cell variability, can carry an essential biophysical function, thereby highlighting the importance of considering 4 dimensions (space + time) in cell-matrix biomaterials. This concept of amplification via heterogeneity can be harnessed to increase mechanical efficiency in diverse systems including implantable biomaterials, swarm robotics, and active polymer composites.
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Affiliation(s)
- Yueyi Sun
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA, 30332-0405, USA
| | - David R Myers
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Aflac Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, 30332, USA; Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Svetoslav V Nikolov
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA, 30332-0405, USA
| | - Oluwamayokun Oshinowo
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Aflac Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, 30332, USA; Winship Cancer Institute of Emory University, Atlanta, GA, 30322, USA; Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - John Baek
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Aflac Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, 30332, USA; Winship Cancer Institute of Emory University, Atlanta, GA, 30322, USA; Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Samuel M Bowie
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA, 30332-0405, USA
| | - Tamara P Lambert
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, 30332, USA
| | - Eric Woods
- Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yumiko Sakurai
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Aflac Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, 30332, USA; Winship Cancer Institute of Emory University, Atlanta, GA, 30322, USA; Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Wilbur A Lam
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Aflac Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA; The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA, 30332, USA; Winship Cancer Institute of Emory University, Atlanta, GA, 30322, USA; Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Alexander Alexeev
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA, 30332-0405, USA.
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The Effects of Adipose Derived Stromal Vascular Fraction and Platelet-Rich Plasma on Bone Healing of a Rat Model With Chronic Kidney Disease. Ann Plast Surg 2021; 85:316-323. [PMID: 32784349 DOI: 10.1097/sap.0000000000002396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) impairs osteoblast/osteoclast balance and damages bone structure with diminished mineralization and results in bone restoration disorders. In this study, we investigate the effects of adipose-derived stromal vascular fraction and platelet-rich plasma (PRP) on bone healing model in rats with CKD. METHODS Sprague-Dawley rats were separated into 4 groups. All groups except group I (healthy control) had CKD surgery using 5/6 nephrectomy model. All groups had intramedullary pin fixation after receiving bone fracture using drilling tools. Group II rats were used as control group for CKD. Group III rats received PRP treatment on fracture site. Group IV rats received PRP and stromal vascular fraction treatment on fracture site.Weight loss and blood samples were followed at the time of kidney surgery, third, sixth, and 12th weeks. Bone healing and callus formations were compared, biomechanically, radiologically, histopathologically, and immunohistochemically. Osteoblastic transformation of stem cells was assessed with DiI staining. RESULTS Negative effects of CKD on bone healing were reduced by increasing mechanical, histological, radiological, and biochemical properties of the bone with stromal vascular fraction and PRP treatments. Although thickness of callus tissue delayed bone healing process, it also enhanced biomechanical features and bone tissue organization. CONCLUSIONS Platelet-rich plasma and adipose-derived stromal vascular fraction treatments were effective for bone healing in animal model, which can be promising for clinical trials.
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Mota MDL, Barreto RB, Leite BR, Cavalcante BCCD. Desenvolvimento de um dispositivo para obter plasma rico em plaquetas (PRP). Rev Bras Ortop 2021; 57:289-294. [PMID: 35652016 PMCID: PMC9142259 DOI: 10.1055/s-0040-1721835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 09/17/2020] [Indexed: 11/12/2022] Open
Abstract
Objective
To present an innovative device that applies the double centrifugation method to obtain platelet-rich plasma (PRP), assessing whether there was an effective increase in the concentration of platelets.
Method
Ten volunteers underwent blood collection. The samples were separated in 20 ml syringes, sealed and subjected to the double centrifugation protocol at 1,100 revolutions per minute (rpm) for 15 minutes, resulting in the separation of red blood cells, plasma with platelets, and leukocytes. Then, 10 ml syringes were added to remove 9 ml, respecting the “buffy coat” parameter, collecting 8 ml above and 1 ml below for the second centrifugation and transferring again to the 20 ml syringe. The plasma was again centrifuged at 1,550 rpm for 10 minutes; as a result, it was divided into two parts: at the top, consisting of low platelet plasma (LPP), and at the bottom, by the platelet button. Part of the LPP was discarded, leaving only 3 ml with the platelet button. The cells were then counted.
Results
This innovative device was able to increase the concentration of platelets by almost three times compared with the baseline. In addition, the preparation time for the PRP was adequate, lasting only 35 to 40 minutes.
Conclusions
Platelet-rich plasma was successfully obtained by the double centrifuge protocol, allowing its clinical use. In addition, obtaining through the presented device promotes greater applicability in the preparation of PRP in specific centers, furthermore, being a quick and economical way to obtain PRP.
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Affiliation(s)
| | - Ronald Bispo Barreto
- Faculdade de Medicina, Universidade Tiradentes, Murilo Dantas, Aracaju, SE, Brasil
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Rocha CA, Arantes RVN, Cestari TM, Santos PS, Assis GF, Taga R. Maxillary sinus lift response to platelet-rich plasma associated with autogenous bone, ceramic biphasic HA/β-TCP (70:30), or deproteinized bovine bone. Int J Implant Dent 2020; 6:79. [PMID: 33251558 PMCID: PMC7701205 DOI: 10.1186/s40729-020-00277-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 11/06/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This study evaluated the long-term effects of platelet-rich plasma (PRP) on bone formation and regeneration when associated with autogenous bone graft (AB), porous biphasic calcium phosphate (pBCP), or deproteinized bovine bone (DBB) in maxillary sinus augmentation (MSA) of rabbit. METHODS In 54 rabbits, bilateral MSA procedure was performed and randomly one sinus was filled with 200 mm3 material plus blood clot (AB/clot, DBB/clot, and pBCP/clot) and other with the same graft plus PRP (AB/PRP, DBB/PRP, and pBCP/PRP). After 30, 60, and 180 days, microtomographic were performed to analyze the three-dimensional MSA volume and histomorphometric analyses for the percentage of bone and soft tissues ingrowth. Data were compared by two-way ANOVA and the means were compared by the Tukey test, at p < 0.05. RESULTS The percentage of pBCP and DBB were nearly unchanged throughout the whole period and bone formation occurred in the spaces between particles. The MSA volume filled with DBB and pBCP agglutinated with clot and PRP maintained constant during all experimental periods (147.2 mm3 and 154.9 mm3, respectively, p = 0.7377), and no significant changes in the new formatted bone and soft tissue were observed between treatments. In AB/clot and AB/PRP, the MSA volume was similar at 30 days (140.3 mm3 and 137.9 mm3, respectively), but a higher and gradual reduction was observed until 180 days. In the AB/PRP, this reduction was significantly higher (44.2%) than AB/clot (22.5%) (p = 0.01792). Histologically, the addition of PRP to AB accelerated the new bone formation/remodeling maintaining the percentage of new bone similar to AB/clot during all experimental volume (p = 0.6406), while the AB particles showed a higher resorption in AB/PRP than AB/clot until 60 days (mean of 7.8% and 15.1%, respectively, p = 0.0396). CONCLUSION The association of PRP with the autogenous graft accelerates the process of bone formation/remodeling in MSA, but not had influence on the pBCP and DBB groups.
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Affiliation(s)
- Caroline Andrade Rocha
- Laboratory of Histology of Department of Biological Sciences, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil.
| | - Ricardo Vinicius Nunes Arantes
- Laboratory of Histology of Department of Biological Sciences, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Tania Mary Cestari
- Laboratory of Histology of Department of Biological Sciences, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Paula Sanches Santos
- Laboratory of Histology of Department of Biological Sciences, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Gerson Francisco Assis
- Laboratory of Histology of Department of Biological Sciences, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
| | - Rumio Taga
- Laboratory of Histology of Department of Biological Sciences, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, SP, 17012-901, Brazil
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Ponzoni D, Martins FEPB, Conforte JJ, Egas LS, Tonini KR, de Carvalho PSP. Evaluation of immediate cell viability and repair of osteotomies for implants using drills and piezosurgery. A randomized, prospective, and controlled rabbit study. Clin Implant Dent Relat Res 2020; 22:250-260. [PMID: 32291960 DOI: 10.1111/cid.12907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/19/2020] [Accepted: 03/22/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE The objective of this study was to evaluate the immediate bone damage and bone repair after osteotomy for implants using conventional drills and drills powered by piezoelectric motor. MATERIALS AND METHODS Twelve rabbits received a tibial osteotomy with a conventional drill (control), with a diamond like carbon drill (DLC) and with a piezoelectric drill (Piezo). The animals were euthanized immediately, 30 and 60 days postoperatively. The tibias were removed and analyzed by means of histomorphometry, immunohistochemistry and microtomography. RESULTS The immediate damage to the tissue at the cavity margins was similar (P > .05). At 30 and 60 days, the amount of newly formed bone tissue was similar (P > .05). Osteocalcin was intense score at 60 days in Piezo group. Microtomography revealed that bone volume at 30 days (control 3.8; DLC 4.3; and Piezo 2.4) and 60 days (control 4.9; DLC 4.82; and Piezo 3.95) were similar. There was a significant difference in bone formation between 30 (2.4) and 60 days (3.95) for the Piezo group (P = .016). CONCLUSION The immediate effects and repair of cavities made using conventional, DLC coated, or ultrasound drills were similar.
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Affiliation(s)
- Daniela Ponzoni
- Department of Surgery and Integrated Clinic, Araçatuba School of Dentistry--UNESP, São Paulo, Brazil
| | | | - Jadison J Conforte
- Post Graduating Dental Prosthesis, Araçatuba School of Dentistry--UNESP, São Paulo, Brazil
| | - Laís S Egas
- Dental Implantology, Araçatuba School of Dentistry--UNESP, São Paulo, Brazil
| | - Karen R Tonini
- Dental Implantology, Araçatuba School of Dentistry--UNESP, São Paulo, Brazil
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Donos N, Dereka X, Calciolari E. The use of bioactive factors to enhance bone regeneration: A narrative review. J Clin Periodontol 2019; 46 Suppl 21:124-161. [DOI: 10.1111/jcpe.13048] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/08/2018] [Accepted: 12/20/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Nikos Donos
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
| | - Xanthippi Dereka
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
- Department of Periodontology; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
| | - Elena Calciolari
- Centre for Oral Immunobiology & Regenerative Medicine & Centre for Oral Clinical Research (COCR); Institute of Dentistry, Barts & The London School of Medicine & Dentistry; Queen Mary University of London (QMUL); London UK
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Shahsavari-Pour S, Aliabadi E, Latifi M, Zareifard N, Namavar MR, Talaei-Khozani T. Evaluation of the Possible Synergic Regenerative Effects of Platelet-Rich Plasma and Hydroxyapatite/Zirconia in the Rabbit Mandible Defect Model. IRANIAN JOURNAL OF MEDICAL SCIENCES 2018; 43:633-644. [PMID: 30510340 PMCID: PMC6230930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Platelet-rich plasma (PRP) and bioceramics such as hydroxyapatite (HA) and zirconium oxide (ZrO2) are used to reconstruct mandibular defects. We sought to determine the synergistic effects of HA/ZrO2 and PRP and compare their osteogenic activity. METHODS ZrO2 scaffolds were constructed by the slurry method and were then coated with HA and impregnated by PRP/heparan sulfate (HS). Bilateral mandibular defects were created in 26 male rabbits. In 20 rabbits, the left defects were treated with HA/ZrO2/PRP (Group 1) and the corresponding right defects were filled with HA/ZrO2 (Group 2). The 6 remaining models were treated with PRP gels at both sides (Group 3). The osteoconductivity of HA/ZrO2/PRP was compared with that of HA/ZrO2 or PRP by radiological and histological methods after the follow-up period, at weeks 2, 6 and 8. The statistical analyses were performed by ANOVA and LSD using SPSS, version 16.0, for Windows (P<0.05). RESULTS After 2 weeks, the percentage of the surface occupied by bone was significantly higher in the HA/ZrO2/PRP-treated defects than in the PRP-treated defects (P=0.007). Osteoblast and osteocyte counts were higher significantly in the PRP-treated group (P=0.032); however, the cells had not started matrix formation on a large scale and just small islands of osteoid with trapped osteocytes were observed. In the long term, the regenerative potential of all the scaffolds was the same. CONCLUSION HA/ZrO2 showed a superior osteoconductive capacity over PRP in the short term; however, they showed no long-term synergic effects.
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Affiliation(s)
- Sheila Shahsavari-Pour
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shiraz University of Medical Sciences, Shiraz Iran
| | - Ehsan Aliabadi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shiraz University of Medical Sciences, Shiraz Iran
| | - Mona Latifi
- Department of Tissue Engineering, National Institute of Genetic Engineering and Biotechnology, Iran
| | - Nehle Zareifard
- Stem Cell Lab, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Namavar
- Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Talaei-Khozani
- Tissue Engineering Lab, Department of Anatomy, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Meimandi-Parizi A, Oryan A, Gholipour H. Healing potential of nanohydroxyapatite, gelatin, and fibrin-platelet glue combination as tissue engineered scaffolds in radial bone defects of rats. Connect Tissue Res 2018; 59:332-344. [PMID: 29035127 DOI: 10.1080/03008207.2017.1387541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Different biomaterials have been used in orthopedic surgery. Evaluation of biomaterials for bone healing promotion has been a wide area of research of the orthopedic field. Sixty critical size defects of 5 mm long were bilaterally created in the radial diaphysis of 30 rats. The animals were randomly divided into six equal groups as empty defect, autograft, nanohydroxyapatite (nHA), Gelatin (Gel)-nHA, fibrin-platelet glue (FPG)-nHA, and Gel-FPG-nHA groups (n = 10 in each group). Radiographs of each forelimb were taken postoperatively on the 1st day and then at the 28th and 56th days post injury. After 56 days, the rats were euthanized and their harvested healing bone samples were evaluated by histopathology, scanning electron microscopy, and biomechanical testing. All the treated defects demonstrated significantly superior new bone formation, remodeling, and bone tissue volume. Moreover, the defects treated with FPG-nHA showed significantly higher ultimate load, yield load, and stiffness. The Gel-FPG-nHA moderately improved bone regeneration that was not close to the autograft in some parameters, whereas FPG-nHA significantly improved bone healing closely comparable with the autograft group in most parameters. In conclusion, although all the nHA-containing scaffolds had some beneficial effects on bone regeneration, the FPG-nHA scaffold was more effective in improving the structural and functional properties of the newly formed bone and was more osteoinductive than the Gel and was comparable to the autograft. Therefore, the FPG can be regarded as a promising option to be used in conjunction with mineral scaffolds for bone tissue engineering.
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Affiliation(s)
- Abdolhamid Meimandi-Parizi
- a Division of Surgery, Department of Clinical Sciences, School of Veterinary Medicine , Shiraz University , Shiraz , Iran
| | - Ahmad Oryan
- b Department of Pathology, School of Veterinary Medicine , Shiraz University , Shiraz , Iran
| | - Hojjat Gholipour
- a Division of Surgery, Department of Clinical Sciences, School of Veterinary Medicine , Shiraz University , Shiraz , Iran
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Does Periosteal Graft Combined With Platelet-Rich Plasma Enhance the Healing of Bone Defect? J Craniofac Surg 2018; 29:1072-1080. [DOI: 10.1097/scs.0000000000004229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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The effects of gelatin, fibrin-platelet glue and their combination on healing of the experimental critical bone defect in a rat model: radiological, histological, scanning ultrastructural and biomechanical evaluation. Cell Tissue Bank 2017; 19:341-356. [PMID: 29264693 DOI: 10.1007/s10561-017-9679-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 12/12/2017] [Indexed: 01/09/2023]
Abstract
Fibrin-platelet glue (FPG) is a blood derivative, in which platelets and fibrinogen are concentrated in a small plasma volume, by differential centrifugation and precipitation. It can form a three-dimensional and biocompatible fibrin scaffold with a myriad of growth factors and proteins that are released progressively to the local environment and contribute to the accelerated postoperative bone healing. Gelatin (Gel) is a derivative of collagen and can promote cell adhesion and proliferation due to its unique sequence of amino acids, so it is suitable for bone tissue applications. This study examined the effects of Gel, FPG and their combinations as bone scaffold on the healing of surgically created critical-size defects in rat radius. Fifty critical size defects of 5 mm long were bilaterally created in the radial diaphysis of 25 rats. The animals were randomly divided into five equal groups as empty defect, autograft, Gel, FPG and Gel-FPG groups (n = 10 in each group). Radiographs of each forelimb were taken postoperatively on the 1st day and then at the 28th and 56th days post injury to evaluate bone formation, union and remodeling of the defect. After 56 days, the rats were euthanized and their harvested healing bone samples were evaluated by histopathology, scanning electron microscopy (SEM) and biomechanical testing. The results of present study showed that the Gel alone did not significantly affect bone healing and regeneration; however, the Gel treated defects promoted healing more than those that were left untreated (negative control). Furthermore, the FPG-enhanced grafts provided a good scaffold containing numerous growth factors for proliferation of osteoinduction and was effective in improving the structural and functional properties of the newly formed bone more than that of the untreated and also the Gel treated groups. Incorporation of Gel into the FPG scaffold improved healing potential of the FPG scaffold; however, it was still inferior to the autograft (positive control). Although the Gel-FPG scaffolds had best effectiveness during bone regeneration, it still needs to be further enhanced by incorporation of the ceramic and osteoinductive biomaterials.
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Marcazzan S, Weinstein RL, Del Fabbro M. Efficacy of platelets in bone healing: A systematic review on animal studies. Platelets 2017. [PMID: 28643535 DOI: 10.1080/09537104.2017.1327652] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In presence of large bone defects, delayed bone union, non-union, fractures, and implant surgery, bone reconstruction may be necessary. Different strategies have been employed to enhance bone healing among which the use of autologous platelet concentrates. Due to the high content of platelets and platelet-derived bioactive molecules (e.g., growth factors, antimicrobial peptides), they are promising candidates to increase bone healing. However, a high heterogeneity of both preclinical and clinical studies resulted in contrasting results. Aim of the present systematic review was to evaluate the efficacy of platelet concentrates in animal models of bone regeneration, considering the possible factors which might affect the outcome. An electronic search was performed on MEDLINE and SCOPUS databases. Animal studies with a minimum follow up of 2 weeks and a sample size of five subjects per group, using platelet concentrates for bone regeneration, were included. Articles underwent risk of bias assessment and further quality evaluation was done. Sixty studies performed on six animal species (rat, rabbit, dog, sheep, goat, and mini-pig) were included. The present part of the review considers only studies performed on rats and rabbits (35 articles). The majority of the studies were considered at medium risk of bias. Animal species, healthy models, platelet, growth factors and leukocytes concentration, and type of bone defect seemed to influence the efficacy of platelet concentrates in bone healing. However, final conclusions were not be drawn, since only few included studies evaluated leukocyte, growth factor content, or presence of other bioactive molecules in platelet concentrates. Further studies with a standardized protocol including characterization of the final products will provide useful information for clinical application of platelet concentrates in bone surgery.
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Affiliation(s)
- Sabrina Marcazzan
- a Dipartimento di Scienze Biomediche , Chirurgiche e Odontoiatriche, Università degli Studi di Milano , Milan , Italy.,b Department of Nanomedicine , Houston Methodist Research Institute , Houston , TX , USA
| | - Roberto Lodovico Weinstein
- a Dipartimento di Scienze Biomediche , Chirurgiche e Odontoiatriche, Università degli Studi di Milano , Milan , Italy.,c IRCCS Istituto Ortopedico Galeazzi , via Riccardo Galeazzi 4, Milan , Italy
| | - Massimo Del Fabbro
- a Dipartimento di Scienze Biomediche , Chirurgiche e Odontoiatriche, Università degli Studi di Milano , Milan , Italy.,c IRCCS Istituto Ortopedico Galeazzi , via Riccardo Galeazzi 4, Milan , Italy
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Peng W, Kim IK, Cho HY, Seo JH, Lee DH, Jang JM, Park SH. The healing effect of platelet-rich plasma on xenograft in peri-implant bone defects in rabbits. Maxillofac Plast Reconstr Surg 2016; 38:16. [PMID: 27073798 PMCID: PMC4819464 DOI: 10.1186/s40902-016-0061-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 03/08/2016] [Indexed: 11/29/2022] Open
Abstract
Background The association of biomaterial combined with repair factor-like platelet-rich plasma (PRP) has prospective values. Bovine-derived xenograft has been identified as an osteoconductive and biocompatible grafting material that provides osseointegration ability. PRP has become a valuable adjunctive agent to promote healing in a lot of dental and oral surgery procedures. However, there are controversies with respect to the regenerative capacity of PRP and the real benefits of its use in bone grafts. The purpose of this study was to assess the influence of PRP combined with xenograft for the repair of peri-implant bone defects. Methods Twelve rabbits were used in this study, and the experimental surgery with implant installation was performed simultaneously. Autologous PRP was prepared before the surgical procedure. An intrabony defect (7.0 mm in diameter and 3.0 mm deep) was created in the tibia of each rabbit; then, 24 titanium dental implants (3.0 mm in diameter and 8.5 mm long) were inserted into these osteotomy sites. Thus, a standardized gap (4.0 mm) was established between the surrounding bony walls and the implant surface. The gaps were treated with either xenograft alone (control group) or xenograft combined with PRP (experimental group). After healing for 1, 2, 3, 4, 5, and 6 weeks, the rabbits were sacrificed with an overdose of KCl solution. Two rabbits were killed at each time, and the samples including dental implants and surrounding bone were collected and processed for histological analysis. Results More newly formed bone and a better bone healing process were observed in control group. The histomorphometric analysis revealed that the mean percentage of bone-to-implant contact in the control group was significantly higher than that of the experimental group (25.23 vs. 8.16 %; P < 0.05, independent-simple t test, analysis of variance [ANOVA]). Conclusions The results indicate that in the addition of PRP to bovine-derived xenograft in the repair of bone defects around the implant, PRP may delay peri-implant bone healing.
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Affiliation(s)
- Wang Peng
- Department of Oral and Maxillofacial Surgery, College of Medicine, Inha University, Incheon, South Korea
| | - Il-Kyu Kim
- Department of Oral and Maxillofacial Surgery, College of Medicine, Inha University, Incheon, South Korea.,Department of OMFS, Dentistry, College of Medicine, Inha University, #7-206, 3rd St. Shinheung-dong, Choong-gu, Incheon, 400-711 South Korea
| | - Hyun-Young Cho
- Department of Oral and Maxillofacial Surgery, College of Medicine, Inha University, Incheon, South Korea
| | - Ji-Hoon Seo
- Department of Oral and Maxillofacial Surgery, College of Medicine, Inha University, Incheon, South Korea
| | - Dong-Hwan Lee
- Department of Oral and Maxillofacial Surgery, College of Medicine, Inha University, Incheon, South Korea
| | - Jun-Min Jang
- Department of Oral and Maxillofacial Surgery, College of Medicine, Inha University, Incheon, South Korea
| | - Seung-Hoon Park
- Department of Oral and Maxillofacial Surgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, South Korea
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Thuaksuban N, Nuntanaranont T, Suttapreyasri S, Boonyaphiphat P. Repairing calvarial defects with biodegradable polycaprolactone–chitosan scaffolds fabricated using the melt stretching and multilayer deposition technique. Biomed Mater Eng 2015; 25:347-60. [DOI: 10.3233/bme-151539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Nuttawut Thuaksuban
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Thailand
| | - Thongchai Nuntanaranont
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Thailand
| | - Srisurang Suttapreyasri
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Thailand
| | - Pleumjit Boonyaphiphat
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Hatyai, Thailand
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Monetite granules versus particulate autologous bone in bone regeneration. Ann Anat 2015; 200:126-33. [DOI: 10.1016/j.aanat.2015.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 03/05/2015] [Accepted: 03/18/2015] [Indexed: 11/17/2022]
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Delgado-Ruiz RA, Calvo Guirado JL, Romanos GE. Bone grafting materials in critical defects in rabbit calvariae. A systematic review and quality evaluation using ARRIVE guidelines. Clin Oral Implants Res 2015; 29:620-634. [DOI: 10.1111/clr.12614] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2015] [Indexed: 11/28/2022]
Affiliation(s)
| | - José Luis Calvo Guirado
- International Dentistry Research Cathedra; San Antonio Catholic University of Murcia (UCAM); Murcia Spain
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New and emerging strategies in platelet-rich plasma application in musculoskeletal regenerative procedures: general overview on still open questions and outlook. BIOMED RESEARCH INTERNATIONAL 2015; 2015:846045. [PMID: 26075269 PMCID: PMC4436449 DOI: 10.1155/2015/846045] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Revised: 01/09/2015] [Accepted: 01/13/2015] [Indexed: 02/07/2023]
Abstract
Despite its pervasive use, the clinical efficacy of platelet-rich plasma (PRP) therapy and the different mechanisms of action have yet to be established. This overview of the literature is focused on the role of PRP in bone, tendon, cartilage, and ligament tissue regeneration considering basic science literature deriving from in vitro and in vivo studies. Although this work provides evidence that numerous preclinical studies published within the last 10 years showed promising results concerning the application of PRP, many key questions remain unanswered and controversial results have arisen. Additional preclinical studies are needed to define the dosing, timing, and frequency of PRP injections, different techniques for delivery and location of delivery, optimal physiologic conditions for injections, and the concomitant use of recombinant proteins, cytokines, additional growth factors, biological scaffolds, and stems cells to develop optimal treatment protocols that can effectively treat various musculoskeletal conditions.
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Li F, Guo W, Li K, Yu M, Tang W, Wang H, Tian W. Improved fat graft survival by different volume fractions of platelet-rich plasma and adipose-derived stem cells. Aesthet Surg J 2015; 35:319-33. [PMID: 25805284 DOI: 10.1093/asj/sju046] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The success of soft-tissue augmentation is offset by the low survival rates of grafted fat tissue. Research shows that adipose-derived stem cells (ASCs) and platelet-rich plasma (PRP) are beneficial to tissue healing. OBJECTIVES To evaluate the long-term effects of different volume fractions of PRP combined with ASCs on fat graft. METHODS ASCs were isolated from human fat tissue, and PRP was obtained from human blood. Cell count kit-8 and real-time polymerase chain reaction (PCR) were used to evaluate the influence of PRP (0%, 10%, 20%, and 30%; volume/volume [v/v]) in medium on ASC proliferation and adipogenic differentiation, respectively. A novel lipoinjection consisting of granular fat, PRP, and ASCs was subcutaneously transplanted into nude mice. The grafts were volumetrically and histologically evaluated 10, 30, 60, and 90 days after transplantation. RESULTS The addition of PRP improved ASC proliferation. Expression of adipogenic-related genes, peroxisome proliferator-activated receptor-γ, lipoprotein lipase, and adipophilin were up-regulated in PRP-induced ASCs. Compared with other groups, granular fat grafts formed with 20% (v/v) and 30% (v/v) PRP significantly improved residual volumes. More intact adipocytes and capillary formation, but less vacuolization, were observed in the 20% (v/v) and 30% (v/v) PRP groups at 30, 60, and 90 days. However, no significant difference was observed between the 20% (v/v) and 30% (v/v) PRP groups in retaining fat grafts and improving histology. CONCLUSIONS Fat grafting with 20% (v/v) PRP and ASCs constitutes an appropriate transplantation strategy for improving graft survival and provides a potential approach for soft-tissue restoration in plastic and reconstructive surgery.
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Affiliation(s)
- Feng Li
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Weihua Guo
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Kun Li
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Mei Yu
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Wei Tang
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Hang Wang
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Weidong Tian
- Dr F. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, P.R. China. Dr Guo is Associate Director at the State Key Laboratory of Oral Diseases and the National EngineeringLaboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Associate Professor in the Department of Pedodontics,West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr K. Li is a Researcher at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Surgeon in the Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Central Sounth University, Changsha, P.R. China. Dr Yu is an Assistant Professor at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China. Drs Tang and Wang are Clinical Professors in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China. Dr Tian is Director at the State Key Laboratory of Oral Diseases and the National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu, P.R. China; and is a Clinical Professor in the Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, P.R. China
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Delgado-Ruiz RA, Calvo-Guirado JL, Romanos GE. Critical size defects for bone regeneration experiments in rabbit calvariae: systematic review and quality evaluation using ARRIVE guidelines. Clin Oral Implants Res 2014; 26:915-930. [PMID: 24766503 DOI: 10.1111/clr.12406] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To perform a systematic review of studies that report the healing of critical size defects (CSDs) in rabbit calvaria and to determine the quality of the studies according to ARRIVE guidelines. MATERIALS AND METHODS An Internet search was made in duplicate between December 2011 and August 2013 using MEDLINE, PubMed and Google Scholar (without restrictions on date of publication) for rabbit studies reporting the healing of CSD in the calvaria. Animal Research Reporting in Vivo Experiment (ARRIVE) guidelines (a list of 20 aspects to score and to ensure comparison between different experimental studies in animals) were used to evaluate the quality of the selected works. RESULTS Twenty-five manuscripts were evaluated. Case-control studies predominated (92.59%). Animal age was not stated in 70.37% of the studies; weight was not reported in 29.62%; most animals weighed 3.5 kg (26.31%). A CSD dimension of 15 mm was common (51.61%), generally located centrally (51.85%), followed by bilateral locations (48.14%). Circular (66.66%), rectangular (14.81%), square (14.81%) and ovoid (1.48%) geometries were used. Histomorphometric data showed incomplete healing in all CSDs and higher percentages of healing in smaller defects (<10 mm). The longer the healing time allowed, the more bone healing took place, for both smaller and larger defects (>15 mm). Minimum quality grades were assigned to ARRIVE items study design (6), experimental animals (8), housing and husbandry (9), sample size (10), allocation (11), statistics (13), results-baseline data (14), numbers analyzed (15), adverse events (17) and funding (20). CONCLUSIONS Data on CSDs in rabbit calvariae lack homogeneity. Smaller defects can be considered critical depending on the time of sacrifice. When new diagnostic technologies are used in addition to histomorphometry, these should be applied with caution to facilitate future comparison with other research. The ARRIVE guidelines should be followed in any animal research protocol to improve the homogeneity, comparison and reproducibility between studies.
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Pripatnanont P, Nuntanaranont T, Vongvatcharanon S, Phurisat K. The primacy of platelet-rich fibrin on bone regeneration of various grafts in rabbit's calvarial defects. J Craniomaxillofac Surg 2013; 41:e191-200. [DOI: 10.1016/j.jcms.2013.01.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 12/26/2012] [Accepted: 01/09/2013] [Indexed: 10/27/2022] Open
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DeNicolo PJ, Guyton MK, Cuenin MF, Hokett SD, Sharawy M, Borke J, McPherson JC. Histologic Evaluation of Osseous Regeneration Following Combination Therapy With Platelet-Rich Plasma and Bio-Oss in a Rat Calvarial Critical-Size Defect Model. J ORAL IMPLANTOL 2013; 41:543-9. [PMID: 24003871 DOI: 10.1563/aaid-joi-d-12-00075] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Platelet-rich plasma (PRP) is an autogenous source of growth factors shown to facilitate human bone growth. Bio-Oss, an osteoconductive xenograft, is used clinically to regenerate periodontal defects, restore dental alveolar ridges, and facilitate sinus-lift procedures. The purpose of this study was to analyze whether a combination of PRP and Bio-Oss would enhance bone regeneration better than either material alone. PRP and/or Bio-Oss were administered in an 8-mm critical-size defect (CSD) rat calvarial model of bone defect between 2 polytetrafluoroethylene membranes to prevent soft tissue incursion. Eight weeks after the induction of the CSD, histologic sections were stained with hematoxylin and eosin stain and analyzed via light microscopy. Qualitative analyses revealed new bone regeneration in all 4 groups. The Bio-Oss and PRP plus Bio-Oss groups demonstrated greater areas of closure in the defects than the control or PRP-only groups because of the space-maintaining ability of Bio-Oss. The groups grafted with Bio-Oss showed close contact with new bone growth throughout the defects, suggesting a stronger graft. The use of PRP alone or in combination with Bio-Oss, however, did not appear to enhance osseous regeneration at 8 weeks. Areas grafted with Bio-Oss demonstrated greater space-maintaining capacity than controls, and PRP was an effective vehicle for placement of the Bio-Oss. However, at 8 weeks this study was unable to demonstrate a significant advantage of using PRP plus Bio-Oss over using Bio-Oss alone.
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Affiliation(s)
- Philip J DeNicolo
- 1 US Army Dental Activity, Dental and Trauma Research Detachment, Fort Sam Houston, San Antonio, Tex
| | - M Kelly Guyton
- 2 Department of Clinical Investigation, D. D. Eisenhower Army Medical Center, Fort Gordon, Ga
| | | | | | - Mohamed Sharawy
- 5 Department of Oral Biology, Medical College of Georgia, Augusta, Ga
| | - James Borke
- 6 College of Dental Medicine, Western University of Health Sciences, Pomona, Calif
| | - James C McPherson
- 2 Department of Clinical Investigation, D. D. Eisenhower Army Medical Center, Fort Gordon, Ga
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Oliveira LDC, Giovanini AF, Abuabara A, Klug LG, Gonzaga CC, Zielak JC, Urban CDA, Deliberador TM. Fragmented adipose tissue graft for bone healing: histological and histometric study in rabbits' calvaria. Med Oral Patol Oral Cir Bucal 2013; 18:e510-5. [PMID: 23524416 PMCID: PMC3668881 DOI: 10.4317/medoral.18407] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Accepted: 12/10/2012] [Indexed: 12/15/2022] Open
Abstract
Objective The adipose tissue represents an important reservoir of stem cells. There are few studies in the literature with which to histologically evaluate whether or not the adipose tissue graft is really a safe option to achieve bone repair. This study histologically analyzed the effect of fragmented autogenous adipose tissue grafts on bone healing in surgically created, critical-size defects (CSD) in a rabbit’s calvaria.
Study design Forty-two New Zealand rabbits were used in this study. CSD that were 15 mm in diameter were created in the calvarium of each animal. The defects were randomly divided into two groups: in Group C (control), the defect was filled only by a blood clot and, in Group FAT (i.e., fragmented adipose tissue), the defect was filled with fragmented autogenous adipose tissue grafts. The groups were divided into subgroups (n = 7) for euthanasia at 7, 15, and 40 days after the procedure had been conducted. Histologic and histometric analyses were performed. Data were statistically analysed with ANOVA and Tukey’s tests (p < 0.05).
Results The amount of bone formation did not show statistically significant differences seven days after the operation, which indicates that the groups had similar amounts of mineral deposition in the earlier period of the repair. Conversely, a significant of amount of bone matrix deposition was identified in the FAT group at 15 and 40 days following the operation, both on the border and in the body of the defect. Such an outcome was not found in the control group.
Conclusion In this study, an autologous adipose tissue graft may be considered as likely biomaterial for bone regeneration, since it positively affected the amount of bone formation in surgically created CSD in the rabbits’ calvaria 40 days after the procedure had been performed. Further investigations with a longer time evaluation are warranted to determine the effectiveness of autologous adipose tissue graft in the bone healing.
Key words:Adipose tissue, bone regeneration, rabbits, critical defects.
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A. M. Penteado L, E. D. Colombo C, A. P. M. Penteado R, O. Assis A, C. V. Gurgel B. Evaluation of bioactive glass and platelet-rich plasma for bone healing in rabbit calvarial defects. J Oral Sci 2013; 55:225-32. [DOI: 10.2334/josnusd.55.225] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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25
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Osteogenic differentiation of muscle satellite cells induced by platelet-rich plasma encapsulated in three-dimensional alginate scaffold. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 114:S32-40. [DOI: 10.1016/j.tripleo.2011.07.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 07/28/2011] [Indexed: 11/22/2022]
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COMPARATIVE STUDY ON USE OF PLATELET-RICH PLASMA ALONE AND IN COMBINATION WITH ALPHA-TRICALCIUM PHOSPHATE CEMENT FOR BONE REPAIR IN RATS. Rev Bras Ortop 2012; 47:505-12. [PMID: 27047859 PMCID: PMC4799469 DOI: 10.1016/s2255-4971(15)30137-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 07/31/2011] [Indexed: 11/20/2022] Open
Abstract
Objectives: To evaluate the effect of alpha-tricalcium phosphate (α-TCP) cement combined with platelet-rich plasma (PRP) on osteogenesis, and to compare the results with use of PRP alone. Methods: A bilateral defect was produced in rat femurs and was filled with one of two types of treatments (PRP or α-TCP + PRP). The outcomes were evaluated after four and eight weeks. Radiographic images provided values for the lesion area, and histology (picrosirius staining) indicated the area of new bone formation. Results: The means relating to the lesion area of the α-TCP + PRP group (2.64 ± 2.07 and 1.91 ± 0.93 mm2, after four and eight weeks, respectively) showed numerically better but non-significant results (p > 0.05) than those seen in the PRP group (5.59 mm 2 ± 2.69 and 3.23 ± 1.46 mm 2, after four and eight weeks, respectively). The mean new bone formation rates were 62.7% ± 12.1 and 79.01% ± 6.25 in the PRP group, and 73.3% ± 12.7 and 85.86% ± 10.45 in α-TCP + PRP group, after four and eight weeks, respectively (p > 0.05). Conclusion: The data from this study suggest that treatment with α-TCP cement combined with PRP does not show any significant difference in comparison with PRP alone. However, there is a possible early effect on bone regeneration when the two biomaterials are applied together.
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Yun JH, Yoo JH, Choi SH, Lee MH, Lee SJ, Song SU, Oh NS. Synergistic effect of bone marrow-derived mesenchymal stem cells and platelet-rich plasma on bone regeneration of calvarial defects in rabbits. Tissue Eng Regen Med 2012. [DOI: 10.1007/s13770-012-0017-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Arvidson K, Abdallah BM, Applegate LA, Baldini N, Cenni E, Gomez-Barrena E, Granchi D, Kassem M, Konttinen YT, Mustafa K, Pioletti DP, Sillat T, Finne-Wistrand A. Bone regeneration and stem cells. J Cell Mol Med 2011; 15:718-46. [PMID: 21129153 PMCID: PMC3922662 DOI: 10.1111/j.1582-4934.2010.01224.x] [Citation(s) in RCA: 260] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Accepted: 11/02/2010] [Indexed: 12/16/2022] Open
Abstract
This invited review covers research areas of central importance for orthopaedic and maxillofacial bone tissue repair, including normal fracture healing and healing problems, biomaterial scaffolds for tissue engineering, mesenchymal and foetal stem cells, effects of sex steroids on mesenchymal stem cells, use of platelet-rich plasma for tissue repair, osteogenesis and its molecular markers. A variety of cells in addition to stem cells, as well as advances in materials science to meet specific requirements for bone and soft tissue regeneration by addition of bioactive molecules, are discussed.
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Affiliation(s)
- K Arvidson
- Department of Clinical Dentistry, Center for Clinical Resarch, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway.
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Nguyen RT, Borg-Stein J, McInnis K. Applications of Platelet-Rich Plasma in Musculoskeletal and Sports Medicine: An Evidence-Based Approach. PM R 2011; 3:226-50. [DOI: 10.1016/j.pmrj.2010.11.007] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2010] [Revised: 10/17/2010] [Accepted: 11/09/2010] [Indexed: 01/15/2023]
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Sohn JY, Park JC, Um YJ, Jung UW, Kim CS, Cho KS, Choi SH. Spontaneous healing capacity of rabbit cranial defects of various sizes. J Periodontal Implant Sci 2010; 40:180-7. [PMID: 20827327 PMCID: PMC2931306 DOI: 10.5051/jpis.2010.40.4.180] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Accepted: 07/13/2010] [Indexed: 12/15/2022] Open
Abstract
Purpose This study evaluated the spontaneous healing capacity of surgically produced cranial defects in rabbits with different healing periods in order to determine the critical size defect (CSD) of the rabbit cranium. Methods Thirty-two New Zealand white rabbits were used in this study. Defects of three sizes (6, 8, and 11 mm) were created in each of 16 randomly selected rabbits, and 15-mm defects were created individually in another 16 rabbits. The defects were analyzed using radiography, histologic analysis, and histometric analysis after the animal was sacrificed at 2, 4, 8, or 12 weeks postoperatively. Four samples were analyzed for each size of defect and each healing period. Results The radiographic findings indicated that defect filling gradually increased over time and that smaller defects were covered with a greater amount of radiopaque substance. Bony islands were observed at 8 weeks at the center of the defect in both histologic sections and radiographs. Histometrical values show that it was impossible to determine the precise CSD of the rabbit cranium. However, the innate healing capacity that originates from the defect margin was found to be constant regardless of the defect size. Conclusions The results obtained for the spontaneous healing capacity of rabbit cranial defects over time and the underlying factors may provide useful guidelines for the development of a rabbit cranial model for in vivo investigations of new bone materials.
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Affiliation(s)
- Joo-Yeon Sohn
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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de Ruiter A, Meijer G, Dormaar T, Janssen N, van der Bilt A, Slootweg P, de Bruijn J, van Rijn L, Koole R. β-TCP versus autologous bone for repair of alveolar clefts in a goat model. Cleft Palate Craniofac J 2010; 48:654-62. [PMID: 20815732 DOI: 10.1597/09-219] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE The aim of this study in goats was to test the hypothesis that a novel synthetic bone substitute beta tricalcium phosphate (β-TCP) can work as well as autologous bone harvested from the iliac crest for grafting and repair of alveolar clefts. DESIGN Ten adult Dutch milk goats (Capra hircus) were used in a split-mouth study design. MAIN OUTCOME MEASURES Volumetric histologic assessment of new bone formation and radiographic measurement of orthodontic movement of teeth in a formerly created alveolar cleft. CONCLUSIONS The synthetic bone substitute β-TCP was shown to result in bone healing similar to that of iliac crest bone. The surgical, orthodontic, and histologic results now warrant the testing of β-TCP in the human cleft situation.
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Huang S, Wang Z. Influence of platelet-rich plasma on proliferation and osteogenic differentiation of skeletal muscle satellite cells: an in vitro study. ACTA ACUST UNITED AC 2010; 110:453-62. [PMID: 20452253 DOI: 10.1016/j.tripleo.2010.02.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2009] [Revised: 01/22/2010] [Accepted: 02/09/2010] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Platelet-rich plasma (PRP) is a new application of tissue engineering and a developing area for researchers and clinicians. The aim of this study was to assess the effect of PRP on the proliferation and osteogenic differentiation of skeletal muscle satellite cell (MSC) population and the ability of PRP to induce the production of some osteogeneic-related factors in vitro. STUDY DESIGN The PRP was obtained from Sprague-Dawley rats using 2 centrifugation techniques. Primary cultures of rat MSCs were exposed to various concentrations of PRP (0.16 × 10(8), 0.625 × 10(8), and 2.5 × 10(8) thrombocytes/carrier) on MSC proliferation using an MTT proliferation assay. Alkaline phosphatase (ALP) activity, Alizarin red S (AR) staining, calcium analyses and real-time reverse-transcription polymerase chain reaction (RT-PCR) of osteogenic-related genes were performed to study the effect of PRP on osteogenic differentiation of cultured MSCs population. RESULTS The platelet concentration and growth factors (GFs) in our PRP preparations were significantly higher than in the whole blood. PRP showed a dose-dependent stimulation of cell proliferation. The maximum effect was achieved with a concentration of 0.625 × 10(8) thrombocytes/carrier. ALP activity, AR staining, and calcium analyses showed enhanced cell osteogenic differentiation in the PRP group. The real-time RT-PCR results showed that PRP up-regulated osteocalcin at day 14 and type I collagen and osteopontin at day 7 compared with the control group. CONCLUSIONS The results of this study suggest that PRP containing osteoinductive GFs stimulates cell proliferation and osteogenic differentiation of rat-derived MSCs in vitro.
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Affiliation(s)
- Shengyun Huang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Tongji University, Shanghai, China
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