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Abdelmoneim D, Coates DE, Schmidlin P, Botter S, Li KC, Porter GC, Seo B, Duncan WJ. In vivo healing of low temperature deproteinized bovine bone xenograft in a rabbit cranial model. J Biomed Mater Res A 2024; 112:1436-1450. [PMID: 38466022 DOI: 10.1002/jbm.a.37693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 12/10/2023] [Accepted: 02/13/2024] [Indexed: 03/12/2024]
Abstract
The physicochemical properties of grafting materials affect the quality of the osteointegration, resorption rate, and the new bone (NB) formation. This study assessed the physicochemical properties and integration of a low temperature deproteinized bovine bone xenograft (BBX), referred to as optimized MoaBone® (OMB). This novel BBX was physiochemically characterized both pre and post chemical bleaching and sterilization by gamma irradiation. OMB was compared to two commercial BBX; Bio-Oss® (BO) and MoaBone® (MB) using a rabbit cranial model. Residual graft and NB were quantified using histology and micro-computed tomography. Results showed that chemical treatment and gamma irradiation had limited effect on the surface texture. A significant decrease in the collagen content was detected post chemical treatment and in the carbonate content post gamma irradiation. There was no evidence of inflammatory infiltrate, necrosis, or connective tissue encapsulation, and a significant increase of NB in all grafted sites as compared to untreated defects could be observed. However, there was no statistically significant difference between the grafted sites. We conclude that chemical treatment and terminal sterilization strongly impact the final graft's properties. OMB graft showed equivalence with BO for in vivo bone formation and potentially results in lower levels of graft retention.
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Affiliation(s)
- Dina Abdelmoneim
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Dawn Elizabeth Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Patrick Schmidlin
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Sander Botter
- Swiss Center for Musculoskeletal Biobanking, Balgrist Campus AG, Zürich, Switzerland
| | - Kai Chun Li
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Gemma Claire Porter
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Benedict Seo
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Warwick John Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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Ansari AI, Ahmad Sheikh N, Kumar N. Mechanical and in vitro study of 3D printed silk fibroin and bone-based composites biomaterials for bone implant application. Proc Inst Mech Eng H 2024:9544119241259071. [PMID: 39045911 DOI: 10.1177/09544119241259071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
When treating orthopaedic damage or illness and accidental fracture, bone grafting remains the gold standard of treatment. In cases where this approach doesn't seem achievable, bone tissue engineering can offer scaffolding as a substitute. Defective and fractured bone tissue is extracted and substituted with porous scaffold structures to aid in the process of tissue regeneration. 3D bioprinting has demonstrated enormous promise in recent years for producing scaffold structures with the necessary capabilities. In order to create composite biomaterial inks for 3D bioprinting, three different materials were combined such as silk fibroin, bone particles, and synthetic biopolymer poly (ε-caprolactone) (PCL). These biomaterials were used to fabricate the two composites scaffolds such as: silk fibroin + bovine bone (SFB) and silk fibroin + bovine bone + Polycaprolactone (SFBP). The biomechanical, structural, and biological elements of the manufactured composite scaffolds were characterized in order to determine their suitability as a possible biomaterial for the production of bone tissue. The in vitro bioactivity of the two composite scaffolds was assessed in the simulated body fluids, and the swelling and degradation characteristics of the two developed scaffolds were analyzed separately over time. The results showed that the mechanical durability of the composite scaffolds was enhanced by the bovine bone particles, up to a specific concentration in the silk fibroin matrix. Furthermore, the incorporation of bone particles improved the bioactive composite scaffolds' capacity to generate hydroxyapatite in vitro. The combined findings show that the two 3D printed bio-composites scaffolds have the required mechanical strength and may be applied to regeneration of bone tissue and restoration, since they resemble the characteristics of native bone.
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Affiliation(s)
- Ali Imran Ansari
- Mechanical Engineering Department, National Institute of Technology Srinagar, Srinagar, Jammu and Kashmir, India
| | - Nazir Ahmad Sheikh
- Mechanical Engineering Department, National Institute of Technology Srinagar, Srinagar, Jammu and Kashmir, India
| | - Navin Kumar
- Mechanical Engineering Department, Indian Institute of Technology Ropar, Ropar, Punjab, India
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Abdelmoneim D, Coates D, Porter G, Schmidlin P, Li KC, Botter S, Lim K, Duncan W. In vitro and in vivo investigation of antibacterial silver nanoparticles functionalized bone grafting substitutes. J Biomed Mater Res A 2024. [PMID: 38864151 DOI: 10.1002/jbm.a.37757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 05/15/2024] [Accepted: 05/20/2024] [Indexed: 06/13/2024]
Abstract
Infection is a major concern in surgery involving grafting and should be considered thoroughly when designing biomaterials. There is considerable renewed interest in silver nanoparticles (AgNPs) owing to their ability to potentiate antibacterial properties against multiple bacterial strains. This study aimed to develop two antibacterial bone regenerative scaffolds by integrating AgNPs in bovine bone particles (BBX) (Product 1), and a light cross-linked hydrogel GelMA (Product 2). The constructs were characterized using scanning electron microscopy. Metabolic activity of osteoblasts and osteoclasts on the constructs was investigated using PrestoBlue™. Disk diffusion assay was conducted to test the antibacterial properties. The regenerative capacity of the optimized AgNP functionalized BBX and GelMA were tested in a rabbit cranial 6 mm defect model. The presence of AgNPs appears to enhance proliferation of osteoblasts compared to AgNP free controls in vitro. We established that AgNPs can be used at a 100 μg dose that inhibits bacteria, with minimal adverse effects on the bone cells. Our rabbit model revealed that both the BBX and GelMA hydrogels loaded AgNPs were biocompatible with no signs of necrosis or inflammatory response. Grafts functionalized with AgNPs can provide antibacterial protection and simultaneously act as a scaffold for attachment of bone cells.
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Affiliation(s)
- Dina Abdelmoneim
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Dawn Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Gemma Porter
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Patrick Schmidlin
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Kai Chun Li
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Sander Botter
- Swiss Center for Musculoskeletal Biobanking, Balgrist Campus AG, Zurich, Switzerland
| | - Khoon Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, New Zealand
| | - Warwick Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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Sadeghian Dehkord E, De Carvalho B, Ernst M, Albert A, Lambert F, Geris L. Influence of physicochemical characteristics of calcium phosphate-based biomaterials in cranio-maxillofacial bone regeneration. A systematic literature review and meta-analysis of preclinical models. Mater Today Bio 2024; 26:101100. [PMID: 38854953 PMCID: PMC11157282 DOI: 10.1016/j.mtbio.2024.101100] [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: 03/21/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/11/2024] Open
Abstract
Objectives Calcium phosphate-based biomaterials (CaP) are the most widely used biomaterials to enhance bone regeneration in the treatment of alveolar bone deficiencies, cranio-maxillofacial and periodontal infrabony defects, with positive preclinical and clinical results reported. This systematic review aimed to assess the influence of the physicochemical properties of CaP biomaterials on the performance of bone regeneration in preclinical animal models. Methods The PubMed, EMBASE and Web of Science databases were searched to retrieve the preclinical studies investigating physicochemical characteristics of CaP biomaterials. The studies were screened for inclusion based on intervention (physicochemical characterization and in vivo evaluation) and reported measurable outcomes. Results A total of 1532 articles were retrieved and 58 studies were ultimately included in the systematic review. A wide range of physicochemical characteristics of CaP biomaterials was found to be assessed in the included studies. Despite a high degree of heterogeneity, the meta-analysis was performed on 39 studies and evidenced significant effects of biomaterial characteristics on their bone regeneration outcomes. The study specifically showed that macropore size, Ca/P ratio, and compressive strength exerted significant influence on the formation of newly regenerated bone. Moreover, factors such as particle size, Ca/P ratio, and surface area were found to impact bone-to-material contact during the regeneration process. In terms of biodegradability, the amount of residual graft was determined by macropore size, particle size, and compressive strength. Conclusion The systematic review showed that the physicochemical characteristics of CaP biomaterials are highly determining for scaffold's performance, emphasizing its usefulness in designing the next generation of bone scaffolds to target higher rates of regeneration.
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Affiliation(s)
- Ehsan Sadeghian Dehkord
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
| | - Bruno De Carvalho
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Marie Ernst
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
| | - Adelin Albert
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
- Department of Public Health Sciences, University of Liège, Belgium
| | - France Lambert
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Liesbet Geris
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
- Department of Mechanical Engineering, Biomechanics Section (BMe), KU Leuven, Belgium
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Amid R, Kadkhodazadeh M, Kheiri A, Esfandiari S. Comparison of the healing process of xenografts with three different sources in critical-size bone defects: An in vivo study. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2024; 16:22-29. [PMID: 39027209 PMCID: PMC11252156 DOI: 10.34172/japid.2024.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/26/2024] [Indexed: 07/20/2024]
Abstract
Background Xenograft bone substitutes can be obtained from different animals and processed using various methods. The present in vivo study evaluated bone regeneration after using three types of xenografts with different sources in critical-sized bone defects in rabbit calvaria. Methods Four 8-mm defects were created in calvaria of 14 New Zealand and white male rabbits. Three out of four defects were filled with xenografts of bovine, camel, and ostrich sources. The fourth defect was left unfilled as the control group. Seven rabbits were sacrificed after eight weeks and seven others after 12 weeks. Micro-CT imaging and histologic evaluation were further performed on dissected calvarias. Results After 8 and 12 weeks, the highest and lowest percentages of new bone formation were observed in the camel (27.71% and 41.92%) and control (11.33% and 15.96%) groups, respectively. In the case of residual material, the ostrich group had the most value after eight weeks (53%), while after 12 weeks, it was highest in the camel group (37%). Micro-CT findings were consistent with histologic results. Conclusion Although all three xenografts can be good choices for treating bone defects, camel-sourced xenograft seemed to be better than the other two groups. The origin and processing procedures of xenografts affected their final characteristics, which should be considered for clinical use.
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Affiliation(s)
- Reza Amid
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Kadkhodazadeh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aida Kheiri
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shiva Esfandiari
- Department of Biology, School of Science, Shahid Beheshti University, Tehran, Iran
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Wang H, Tu Z, Wang H. Preparation of high content collagen peptides and study of their biological activities. Food Res Int 2023; 174:113561. [PMID: 37986438 DOI: 10.1016/j.foodres.2023.113561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 11/22/2023]
Abstract
Collagen peptides play an important role in the increasing use of collagen peptides as dietary supplements in food and beverages and as bioactive ingredients in cosmetics, healthcare, and pharmaceuticals. Collagenase enzymatically cleaves gelatin to produce collagen polypeptides. However, the enzymatic activity of collagenase is very low (25900 U) and does not allow for adequate enzymatic digestion. Therefore, proteases are used to assist in enzymatic digestion. Porcine gelatin, bovine gelatin, and fish protein gum were enzymatically digested, and the content of collagen peptides in the enzymatically digested lyophilized powder was identified by high-performance liquid chromatography and mass spectrometry, and then the content of the desired collagen peptides was increased by isolation and purification, and the result of the determination was that the content of collagen peptides was the highest after enzymatic digestion and isolation and purification with the use of porcine gelatin as the raw material, and the content of the collagen peptides was about 45.47%. β-nicotinamide mononucleotide (NMN) was mixed with the prepared samples to determine its antioxidant properties and ability to promote the growth of human dermal fibroblasts. The results showed that the antioxidant capacity was enhanced with the increase of collagen polypeptide content, and NMN could promote the scavenging of DPPH• and •OH free radicals by collagen polypeptides. The ability to promote the growth of human dermal fibroblasts was enhanced with the increase of collagen polypeptide content. This paper aimed to prepare a high content of collagen polypeptides from three raw materials, porcine gelatin, bovine gelatin, and fish protein gum, and further to determine the biological activities.
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Affiliation(s)
- Houchuntai Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Zongcai Tu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China; National R&D Center of Freshwater Fish Processing, Jiangxi Normal University, Nanchang 330022, China; Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, China
| | - Hui Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
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Ekhlasmand kermani M, Kheiri A, Amid R, Torshabi M, Houshmand B, Parsayan S. Sterility and bioactivity evaluation of two types of bone graft substitutes after removing the original packaging. JOURNAL OF ADVANCED PERIODONTOLOGY & IMPLANT DENTISTRY 2023; 15:15-21. [PMID: 37645549 PMCID: PMC10460786 DOI: 10.34172/japid.2023.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/30/2023] [Indexed: 08/31/2023]
Abstract
Background Xenograft and allograft bone substitutes are widely used to replace the missing bone in defects. Since removing the packaging of these grafts can nullify their sterilization, this study aimed to evaluate the sterility and bioactivity changes of an allograft and a xenograft following uncapping/recap. Methods Two types of commercial allograft and xenograft vials were unpacked and further exposed to operating room air, where implant surgery was performed for one second, ten minutes, and one hour. After three repetitions, samples were analyzed using microbiological tests and scanning electron microscopy (SEM) with energy dispersive x-ray analysis (EDX) for sterility and bioactivity evaluation. Results None of the bone graft samples showed microbial growth or bioactivity-negative changes after seven days of unpacking the vials. Conclusion Despite the positive results of this study, future studies and more analysis considering influential factors are required. Also, disinfection and air exchange must still be observed during biomaterial application and bone grafting procedures.
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Affiliation(s)
- Mehdi Ekhlasmand kermani
- Department of Periodontics, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
| | - Aida Kheiri
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Amid
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Torshabi
- Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Behzad Houshmand
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepideh Parsayan
- Dental Student, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Torquato LC, Suárez EAC, Bernardo DV, Pinto ILR, Mantovani LO, Silva TIL, Jardini MAN, Santamaria MP, De Marco AC. Bone repair assessment of critical size defects in rats treated with mineralized bovine bone (Bio-Oss®) and photobiomodulation therapy: a histomorphometric and immunohistochemical study. Lasers Med Sci 2021; 36:1515-1525. [PMID: 33400010 DOI: 10.1007/s10103-020-03234-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 12/22/2020] [Indexed: 10/22/2022]
Abstract
This study aimed to investigate the effects of administering photobiomodulation therapy (PBM) with bovine bone matrix on critical size defects in rats. Seventy-two adult male rats (albinus, Wistar), 90 days old, were used. Defect of 5 mm in diameter was made in their calvaria. The animals were divided into 4 groups: C-blood clot, B-Bio-Oss®, L-PBM, B+L-Bio-Oss®+PBM. Each group has been subdivided into 07, 30, and 60 days of observation. For PBM, a low GaAlAs energy of 660 nm was irradiated, total energy density of 45 J/cm2 . PBM was conducted in a trans-surgical form once only. For immunohistochemistry, a semi-quantitative analysis was made of expression of osteoprotegerin (OPG), nuclear kappa B-factor ligand receptor activator (RANKL), and tartrate-resistant acid phosphatase (TRAP). All histomorphometric data were statistically analyzed by ANOVA and Tukey test, significance level of 5%. The groups that showed the highest proportion of neoformation were L (0.39% ± 0.13) and C (0.37% ± 0.97), but groups B and B+L had larger defect size (C-1.75 mm2 ± 0.40, B-3.02 mm2 ± 0.63, L-2.45 mm2 ± 0.53, B+L-3.23 mm2 ± 1.01). In immunohistochemistry, groups B and B+L had higher immunostaining scores for OPG and RANKL at 60 days, and TRAP immunostaining increased in all groups at 30 days, but group L was the only one to present specimens with score 0. Although, at 60 days, groups L and C presented the highest proportion of bone neoformation, at 30 days group B+L had more than twice as much bone neoformation as group B, the choice of treatment application should depend on the aim of the treatment.
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Affiliation(s)
- Letícia Cavassini Torquato
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), Institute of Science and Technology, Av. Eng. Francisco José Longo, n° 777 - Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil.
| | - Eduardo Antonio Chelin Suárez
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), Institute of Science and Technology, Av. Eng. Francisco José Longo, n° 777 - Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil
| | - Daniella Viscensotto Bernardo
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), Institute of Science and Technology, Av. Eng. Francisco José Longo, n° 777 - Jardim São Dimas, São José dos Campos, SP, 12245-000, Brazil
| | | | | | - Thiago Igor Lemes Silva
- São Paulo State University (UNESP), Institute of Science and Technology, São José dos Campos, SP, Brazil
| | - Maria Aparecida Neves Jardini
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, São José dos Campos, SP, Brazil
| | - Mauro Pedrine Santamaria
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, São José dos Campos, SP, Brazil
| | - Andrea Carvalho De Marco
- Department of Diagnosis and Surgery - Division of Periodontology, São Paulo State University (UNESP), Institute of Science and Tecnology, São José dos Campos, SP, Brazil
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Stumbras A, Kuliesius P, Darinskas A, Kubilius R, Zigmantaite V, Juodzbalys G. Bone regeneration in rabbit calvarial defects using PRGF and adipose-derived stem cells: histomorphometrical analysis. Regen Med 2020; 15:1535-1549. [PMID: 32452715 DOI: 10.2217/rme-2019-0123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Aim: The aim of this study was to evaluate the osteogenic potential of adipose-derived stem cells (ADSCs) and to assess the influence of plasma rich in growth factors (PRGF) on bone regeneration using ADSCs. Materials & methods: Bone defects were randomly allocated to the five treatment modalities: spontaneous healing, natural bovine bone mineral (BBM), BBM loaded with PRGF, BBM loaded with ADSCs and BBM loaded with a combination of ADSCs and PRGF. Results: The PRGF significantly enhanced the biomaterial-to-bone contact. Defects treated with ADSCs and PRGF or a combination of both showed the greatest bone regeneration. Conclusion: Combining PRGF and ADSCs boosts the bone graft regenerative potential at the earliest period of healing.
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Affiliation(s)
- Arturas Stumbras
- Department of Maxillofacial Surgery, Faculty of Odontology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Povilas Kuliesius
- Department of Maxillofacial Surgery, Faculty of Odontology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Adas Darinskas
- Laboratory of Immunology, National Cancer Institute, Lithuania
| | - Ricardas Kubilius
- Department of Maxillofacial Surgery, Faculty of Odontology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vilma Zigmantaite
- Animal Research Centre, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Gintaras Juodzbalys
- Department of Maxillofacial Surgery, Faculty of Odontology, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Du Z, Zhao Z, Liu H, Liu X, Zhang X, Huang Y, Leng H, Cai Q, Yang X. Macroporous scaffolds developed from CaSiO 3 nanofibers regulating bone regeneration via controlled calcination. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:111005. [PMID: 32487409 DOI: 10.1016/j.msec.2020.111005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 03/18/2020] [Accepted: 04/20/2020] [Indexed: 01/31/2023]
Abstract
Calcium silicate (CS) is envisioned as a good substrate for bone tissue engineering applications because it can provide bioactive ions like Ca2+ and Si4+ to promote bone regeneration. Calcination temperature is a critical factor in determining the crystallinity of CS ceramic, which subsequently influences its degradation and ion release behaviors. To investigate the effect of calcination temperature on the capacity of CS in inducing bone regeneration, CS nanofibers were fabricated via electrospinning of precursor sol-gel and subsequent sintering at 800 °C, 1000 °C or 1200 °C. As the calcination temperature was increased, the obtained CS nanofibers displayed higher crystallinity and slower degradation rate. The CS nanofibers calcined at 800 °C (800 m) would like to cause high pH (>9) in cell culture medium due to its rapid ion release rate, displaying adverse effect on cell viability. Among all the preparations, it was found the CS nanofibers calcined at 1000 °C (1000 m) demonstrated the strongest promotion effect on the osteogenic differentiation of bone marrow mesenchymal stromal cells. To facilitate in vivo implantation, the CS nanofibers were shaped into three-dimensional macroporous scaffolds and coated with gelatin to improve their mechanical stability. By implanting the scaffolds into rat calvarial defects, it was confirmed the scaffold made of CS nanofibers calcined at 1000 °C was able to enhance new bone formation more efficiently than the scaffolds made of CS nanofibers calcined at 800 °C or 1200 °C. To summarize, calcination temperature could be an effective and useful tool applied to produce CS bioceramic substrates with improved potential in enhancing osteogenesis by regulating their degradation and bioactive ion release behaviors.
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Affiliation(s)
- Zhiyun Du
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zhenda Zhao
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, PR China
| | - Huanhuan Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xue Liu
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Xu Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, PR China
| | - Yiqian Huang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Huijie Leng
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, PR China.
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
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