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Hong SO, Pyo JY, On SW, Seo JY, Choi JY. The Biocompatibility and the Effect of Titanium and PEKK on the Osseointegration of Customized Facial Implants. MATERIALS (BASEL, SWITZERLAND) 2024; 17:4435. [PMID: 39274824 PMCID: PMC11396195 DOI: 10.3390/ma17174435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2024] [Revised: 08/30/2024] [Accepted: 09/05/2024] [Indexed: 09/16/2024]
Abstract
The purpose of this study was to investigate the optimization of computer-aided design/computer-aided manufacturing (CAD/CAM) patient-specific implants for mandibular facial bone defects and compare the biocompatibility and osseointegration of machined titanium (Ma), Sandblasted/Large-grit/Acid-etched (SLA) titanium, and polyetherketoneketone (PEKK) facial implants. We hypothesized that the facial implants made of SLA titanium had superior osseointegration when applied to the gonial angle defect and prevented the senile atrophy of the bone. Histologic findings of the soft-tissue reaction, hard-tissue reaction, and bone-implant contact (BIC (%) of 24 Ma, SLA, and PEKK facial implants at 8 and 12 weeks were investigated. There was no statistical difference in the soft tissue reaction. Bone was formed below the periosteum in all facial implants at 12 weeks and the BIC values were significantly different at both 8 and 12 weeks (p < 0.05). Ma, SLA, and PEKK facial implants are biocompatible with osseointegration properties. SLA can enhance osseointegration and provoke minimal soft tissue reactions, making them the most suitable choice. They provide an excellent environment for bone regeneration and, over the long term, may prevent atrophy caused by an aging mandible. The bone formation between the lateral surface of the facial implant and periosteum may assist in osseointegration and stabilization.
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Affiliation(s)
- Sung-Ok Hong
- Department of Oral and Maxillofacial Surgery, Kyung Hee University Dental Hospital at Gangdong, Seoul 05278, Republic of Korea
| | - Ju-Yeon Pyo
- Department of Pathology, Catholic Kwandong University, International St. Mary's Hospital, Simgok-ro 100 Gil 25, Incheon 22711, Republic of Korea
| | - Sung-Woon On
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Hallym University Dongtan Sacred Heart Hospital, 7 Keunjaebong-gil, Hwaseong-si 18450, Republic of Korea
| | - Ja-Yeong Seo
- Department of Pathology, SD Lab, 53-21, Dongbaekjungang-ro, Gilheung-gu, Yonging-si 17013, Republic of Korea
| | - Jin-Young Choi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, Daehak-Ro #101, Chongno-gu, Seoul 03080, Republic of Korea
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Systermans S, Cobraiville E, Camby S, Meyer C, Louvrier A, Lie SA, Schouman T, Siciliano S, Beckers O, Poulet V, Ullmann N, Nolens G, Biscaccianti V, Nizet JL, Hascoët JY, Gilon Y, Vidal L. An innovative 3D hydroxyapatite patient-specific implant for maxillofacial bone reconstruction: A case series of 13 patients. J Craniomaxillofac Surg 2024; 52:420-431. [PMID: 38461138 DOI: 10.1016/j.jcms.2024.02.026] [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: 08/21/2023] [Revised: 11/28/2023] [Accepted: 02/17/2024] [Indexed: 03/11/2024] Open
Abstract
The study aimed to evaluate and discuss the use of an innovative PSI made of porous hydroxyapatite, with interconnected porosity promoting osteointegration, called MyBone Custom® implant (MBCI), for maxillofacial bone reconstruction. A multicentric cohort of 13 patients underwent maxillofacial bone reconstruction surgery using MBCIs for various applications, from genioplasty to orbital floor reconstruction, including zygomatic and mandibular bone reconstruction, both for segmental defects and bone augmentation. The mean follow-up period was 9 months (1-22 months). No infections, displacements, or postoperative fractures were reported. Perioperative modifications of the MBCIs were possible when necessary. Additionally, surgeons reported significant time saved during surgery. For patients with postoperative CT scans, osteointegration signs were visible at the 6-month postoperative follow-up control, and continuous osteointegration was observed after 1 year. The advantages and disadvantages compared with current techniques used are discussed. MBCIs offer new bone reconstruction possibilities with long-term perspectives, while precluding the drawbacks of titanium and PEEK. The low level of postoperative complications associated with the high osteointegration potential of MBCIs paves the way to more extensive use of this new hydroxyapatite PSI in maxillofacial bone reconstruction.
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Affiliation(s)
- Simon Systermans
- Department of Plastic and Maxillofacial Surgery, CHU, University of Liège, Liège, Belgium; Department of Oral and Maxillofacial Surgery, ZOL Genk, Genk, Belgium
| | | | - Séverine Camby
- Department of Plastic and Maxillofacial Surgery, CHU, University of Liège, Liège, Belgium
| | - Christophe Meyer
- Chirurgie Maxillo-Faciale, Stomatologie et Odontologie Hospitalière, CHU, Université de Franche-Comté, Besançon, France
| | - Aurélien Louvrier
- Chirurgie Maxillo-Faciale, Stomatologie et Odontologie Hospitalière, CHU, Université de Franche-Comté, Besançon, France
| | - Suen An Lie
- Department of Cranio-Maxillofacial Surgery, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Thomas Schouman
- Department of Maxillofacial Surgery, Groupe Hospitalier Pitié-Salpêtrière Charles Foix, Assistance Publique des Hôpitaux de Paris, Sorbonne Université, Paris, France
| | - Sergio Siciliano
- Department of Stomatology and Maxillofacial Surgery, Clinique Sainte Elisabeth, Brussels, Belgium
| | - Olivier Beckers
- Department of Oral and Maxillofacial Surgery, ZOL Genk, Genk, Belgium
| | - Vinciane Poulet
- Department of Maxillofacial Surgery, Toulouse Purpan University Hospital, Toulouse, France
| | - Nicolas Ullmann
- Service de Chirurgie Maxillo-faciale et Stomatologie, Hôpital de Villeneuve Saint Georges, France
| | | | - Vincent Biscaccianti
- Research Institute of Civil Engineering and Mechanics (GeM), CNRS, Nantes, France
| | - Jean-Luc Nizet
- Department of Plastic and Maxillofacial Surgery, CHU, University of Liège, Liège, Belgium
| | - Jean-Yves Hascoët
- Research Institute of Civil Engineering and Mechanics (GeM), CNRS, Nantes, France
| | - Yves Gilon
- Department of Plastic and Maxillofacial Surgery, CHU, University of Liège, Liège, Belgium
| | - Luciano Vidal
- Research Institute of Civil Engineering and Mechanics (GeM), CNRS, Nantes, France; Department of Plastic and Reconstructive Surgery, Clinique Bretéché - ELSAN, Nantes, France.
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Secondo MTS, Rodrigues LDS, Ramos LPM, Bovolato ALC, Rodriguez-Sanchez DN, Sobreira ML, Moraes MPDT, Bertanha M. Evaluation of Biointegration and Inflammatory Response to Blood Vessels Produced by Tissue Engineering-Experimental Model in Rabbits. Biomolecules 2022; 12:biom12121776. [PMID: 36551204 PMCID: PMC9775166 DOI: 10.3390/biom12121776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/29/2022] [Accepted: 11/19/2022] [Indexed: 12/05/2022] Open
Abstract
Peripheral arterial disease (PAD) is the main cause of mortality in the western population and requires surgical intervention with the use of vascular substitutes, such as autologous veins or Dacron or PTFE prostheses. When this is not possible, it progresses to limb amputation. For cases where there is no autologous vascular substitute, tissue engineering with the production of neovessels may be a promising option. Previous experimental studies have shown in vitro that rabbit vena cava can be decellularized and serve as a scaffold for receiving mesenchymal stem cells (MSC), with subsequent differentiation into endothelial cells. The current study aimed to evaluate the behavior of a 3D product structure based on decellularized rabbit inferior vena cava (IVC) scaffolds seeded with adipose-tissue-derived stem cells (ASCs) and implanted in rabbits dorsally subcutaneously. We evaluated the induction of the inflammatory response in the animal. We found that stem cells were positive in reducing the inflammatory response induced by the decellularized scaffolds.
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Affiliation(s)
- Mariana Thaís Silva Secondo
- Department of Surgery and Orthopedics, Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
| | - Lenize da Silva Rodrigues
- Department of Surgery and Orthopedics, Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
- Applied Biotechnology Laboratory, Clinical Hospital of Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
- Correspondence: ; Tel.: +55-14-3880-1444
| | - Leandro Pereira Miranda Ramos
- Department of Surgery and Orthopedics, Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
| | - Ana Lívia Carvalho Bovolato
- Applied Biotechnology Laboratory, Clinical Hospital of Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
| | - Diego Noé Rodriguez-Sanchez
- Applied Biotechnology Laboratory, Clinical Hospital of Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
| | - Marcone Lima Sobreira
- Department of Surgery and Orthopedics, Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
| | | | - Matheus Bertanha
- Department of Surgery and Orthopedics, Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
- Applied Biotechnology Laboratory, Clinical Hospital of Botucatu Medical School, São Paulo State University—UNESP, Botucatu 18618-687, Brazil
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Yoon SK, Chung DJ. In Vivo Degradation Studies of PGA-PLA Block Copolymer and Their Histochemical Analysis for Spinal-Fixing Application. Polymers (Basel) 2022; 14:polym14163322. [PMID: 36015579 PMCID: PMC9415336 DOI: 10.3390/polym14163322] [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: 07/14/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 11/24/2022] Open
Abstract
Polylactic acid (PLA) and polyglycolic acid (PGA) are well-known medical-implant materials. Under the consideration of the limitations of degradable polymeric materials, such as weak mechanical strength and by-product release through the biodegradation process under in vivo environments, PLA–PGA block copolymer is one of the effective alternative implant materials in the clinical field. In our previous study, two types of extremely effective PGA–PLA copolymers (multi/tri-block PGA–PLA copolymers) were synthesized. These synthesized block copolymers could overcome aforementioned issues and also showed good biocompatibility. In this study, the PGA–PLA block copolymers with large molecular weight were synthesized under the same chemical scheme, and their bio durability was confirmed through the in vivo degradation behavior and histochemical analyses (by hematoxylin and eosin and immune staining) in comparison with commercial PLGA random copolymer (medical grade). Specimens for the degradation test were investigated by SEM and X-ray diffractometer (XRD). As a result, the synthesized PGA–PLA block copolymer showed good biocompatibility and had a controlled biodegrading rate, making it suitable for use in resorbable spinal-fixation materials.
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Local and systemic inflammation triggers different outcomes of tumor growth related to infiltration of anti-tumor or pro-tumor macrophages. Chin Med J (Engl) 2022; 135:1821-1828. [PMID: 35903953 PMCID: PMC9521782 DOI: 10.1097/cm9.0000000000001775] [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] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Previous evidence suggests inflammation may be a double-edged sword with cancer-promoting and cancer suppressing function. In this study, we explore the impact of local and systemic inflammation on cancer growth. METHODS Female BALB/C mice were subcutaneously implanted with foreign body (plastic plates) to build up a local inflammation and intraperitoneally injected with PolyIC or lipopolysaccharides (LPS) to build up a systemic inflammation, followed by subcutaneous injection of 5 × 10 5 colon cancer cells. Immunohistochemistry and enzyme linked immunosorbent assay were utilized to detect the Ki67 and interleukin (IL) 6, IL-1β, and monocyte chemoattractant protein-1 expression in the tumor tissues and serum, respectively. The distributions of immune cells and expression of toll-like receptors (TLRs) were evaluated by flow cytometry (FCM) and quantitative real time-polymerase chain reaction. RESULTS The results showed that local inflammation induced by foreign body implantation suppressed tumor growth with decreased tumor weight ( P = 0.001), volume ( P = 0.004) and Ki67 index ( P < 0.001). Compared with the control group, myeloid-derived suppressive cells sharply decreased ( P = 0.040), while CD4 + T cells slightly increased in the tumor tissues of the group of foreign body-induced local inflammation ( P = 0.035). Moreover, the number of M1 macrophages ( P = 0.040) and expression of TLRs, especially TLR3 ( P < 0.001) and TLR4 ( P < 0.001), were significantly up-regulated in the foreign body group. Contrarily, tumor growth was significantly promoted in LPS or PolyIC-induced systemic inflammation ( P = 0.009 and 0.006). FCM results showed M1 type macrophages ( P = 0.017 and 0.006) and CD8 + T cells ( P = 0.031 and 0.023) were decreased, while M2 type macrophages ( P = 0.002 and 0.007) were significantly increased in tumor microenvironment of LPS or PolyIC-induced systemic inflammation group. In addition, the decreased expression of TLRs was detected in LPS or PolyIC group. CONCLUSIONS The foreign body-induced local inflammation inhibited tumor growth, while LPS or PolyIC- induced systemic inflammation promoted tumor growth. The results suggested that the different outcomes of tumor growth might be attributed to the infiltration of anti-tumor or pro-tumor immune cells, especially M1 or M2 type macrophages into tumor microenvironment.
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Wei F, Liu S, Chen M, Tian G, Zha K, Yang Z, Jiang S, Li M, Sui X, Chen Z, Guo Q. Host Response to Biomaterials for Cartilage Tissue Engineering: Key to Remodeling. Front Bioeng Biotechnol 2021; 9:664592. [PMID: 34017827 PMCID: PMC8129172 DOI: 10.3389/fbioe.2021.664592] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/14/2021] [Indexed: 12/18/2022] Open
Abstract
Biomaterials play a core role in cartilage repair and regeneration. The success or failure of an implanted biomaterial is largely dependent on host response following implantation. Host response has been considered to be influenced by numerous factors, such as immune components of materials, cytokines and inflammatory agents induced by implants. Both synthetic and native materials involve immune components, which are also termed as immunogenicity. Generally, the innate and adaptive immune system will be activated and various cytokines and inflammatory agents will be consequently released after biomaterials implantation, and further triggers host response to biomaterials. This will guide the constructive remolding process of damaged tissue. Therefore, biomaterial immunogenicity should be given more attention. Further understanding the specific biological mechanisms of host response to biomaterials and the effects of the host-biomaterial interaction may be beneficial to promote cartilage repair and regeneration. In this review, we summarized the characteristics of the host response to implants and the immunomodulatory properties of varied biomaterial. We hope this review will provide scientists with inspiration in cartilage regeneration by controlling immune components of biomaterials and modulating the immune system.
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Affiliation(s)
- Fu Wei
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China.,Department of Orthopedics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Shuyun Liu
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Mingxue Chen
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Guangzhao Tian
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Kangkang Zha
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Zhen Yang
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | | | - Muzhe Li
- Department of Orthopedics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Xiang Sui
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Zhiwei Chen
- Department of Orthopedics, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Quanyi Guo
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries, PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
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TNF-α-Inhibition Improves the Biocompatibility of Porous Polyethylene Implants In Vivo. Tissue Eng Regen Med 2021; 18:297-303. [PMID: 33515166 PMCID: PMC8012447 DOI: 10.1007/s13770-020-00325-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/07/2020] [Accepted: 11/18/2020] [Indexed: 11/04/2022] Open
Abstract
Background:
To improve the biocompatibility of porous polyethylene (PPE) implants and expand their application range for reconstructive surgery in poorly vascularized environments, implants were coated with tumor necrosis factor α (TNFα) inhibitor Etanercept. While approved for systemic application, local application of the drug is a novel experimental approach. Microvascular and mechanical integration as well as parameters of inflammation were analyzed in vivo. Methods:
PPE implants were coated with Etanercept and extracellular matrix (ECM) components prior to implantation into dorsal skinfold chambers of C57BL/6 mice. Fluorescence microscopy analyses of angiogenesis and local inflammatory response were thrice performed in vivo over a period of 14 days to assess tissue integration and biocompatibility. Uncoated implants and ECM-coated implants served as controls. Results:
TNFα inhibition with Etanercept led to a reduced local inflammatory response: leukocyte-endothelial cell adherence was significantly lowered compared to both control groups (n = 6/group) on days 3 and 14, where the lowest values were reached: 3573.88 leukocytes/mm-2 ± 880.16 (uncoated implants) vs. 3939.09 mm-2 ± 623.34 (Matrigel only) vs. 637.98 mm-2 + 176.85 (Matrigel and Etanercept). Implant-coating with Matrigel alone and Matrigel and Etanercept led to significantly higher vessel densities 7 and 14 days vs. 3 days after implantation and compared to uncoated implants. Mechanical implant integration as measured by dynamic breaking strength did not differ after 14 days. Conclusion:
Our data show a reduced local inflammatory response to PPE implants after immunomodulatory coating with Etanercept in vivo, suggesting improved biocompatibility. Application of this tissue engineering approach is therefore warranted in models of a compromised host environment. Electronic supplementary material The online version of this article (10.1007/s13770-020-00325-w) contains supplementary material, which is available to authorized users.
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Sosakul T, Tuchpramuk P, Suvannapruk W, Srion A, Rungroungdouyboon B, Suwanprateeb J. Evaluation of tissue ingrowth and reaction of a porous polyethylene block as an onlay bone graft in rabbit posterior mandible. J Periodontal Implant Sci 2020; 50:106-120. [PMID: 32395389 PMCID: PMC7192824 DOI: 10.5051/jpis.2020.50.2.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 12/22/2019] [Accepted: 02/12/2020] [Indexed: 01/13/2023] Open
Abstract
Purpose A new form of porous polyethylene, characterized by higher porosity and pore interconnectivity, was developed for use as a tissue-integrated implant. This study evaluated the effectiveness of porous polyethylene blocks used as an onlay bone graft in rabbit mandible in terms of tissue reaction, bone ingrowth, fibrovascularization, and graft-bone interfacial integrity. Methods Twelve New Zealand white rabbits were randomized into 3 treatment groups according to the study period (4, 12, or 24 weeks). Cylindrical specimens measuring 5 mm in diameter and 4.5 mm in thickness were placed directly on the body of the mandible without bone bed decortication, fixed in place with a titanium screw, and covered with a collagen membrane. Histologic and histomorphometric analyses were done using hematoxylin and eosin-stained bone slices. Interfacial shear strength was tested to quantify graft-bone interfacial integrity. Results The porous polyethylene graft was observed to integrate with the mandibular bone and exhibited tissue-bridge connections. At all postoperative time points, it was noted that the host tissues had grown deep into the pores of the porous polyethylene in the direction from the interface to the center of the graft. Both fibrovascular tissue and bone were found within the pores, but most bone ingrowth was observed at the graft-mandibular bone interface. Bone ingrowth depth and interfacial shear strength were in the range of 2.76-3.89 mm and 1.11-1.43 MPa, respectively. No significant differences among post-implantation time points were found for tissue ingrowth percentage and interfacial shear strength (P>0.05). Conclusions Within the limits of the study, the present study revealed that the new porous polyethylene did not provoke any adverse systemic reactions. The material promoted fibrovascularization and displayed osteoconductive and osteogenic properties within and outside the contact interface. Stable interfacial integration between the graft and bone also took place.
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Affiliation(s)
- Teerapan Sosakul
- Department of Prosthodontics, Khon Kaen University Faculty of Dentistry, Khon Kaen, Thailand
| | - Pongsatorn Tuchpramuk
- Office of Academic Affairs, Mahasarakham University Faculty of Veterinary Sciences, Maha Sarakham, Thailand
| | - Waraporn Suvannapruk
- Biofunctional Materials and Devices Research Group, National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathumthani, Thailand
| | - Autcharaporn Srion
- Biofunctional Materials and Devices Research Group, National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathumthani, Thailand
| | - Bunyong Rungroungdouyboon
- Department of Mechanical Engineering, Thammasat University Faculty of Engineering, Pathumthani, Thailand
| | - Jintamai Suwanprateeb
- Biofunctional Materials and Devices Research Group, National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, Pathumthani, Thailand
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de Lazari MGT, Pereira LX, Orellano LAA, Scheuermann K, Machado CT, Vasconcelos AC, Andrade SP, Campos PP. Sodium Butyrate Downregulates Implant-Induced Inflammation in Mice. Inflammation 2020; 43:1259-1268. [DOI: 10.1007/s10753-020-01205-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Kopp A, Smeets R, Gosau M, Friedrich RE, Fuest S, Behbahani M, Barbeck M, Rutkowski R, Burg S, Kluwe L, Henningsen A. Production and Characterization of Porous Fibroin Scaffolds for Regenerative Medical Application. In Vivo 2019; 33:757-762. [PMID: 31028194 PMCID: PMC6559917 DOI: 10.21873/invivo.11536] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND/AIM Silk is a natural biomaterial with several superior features for applications in regenerative medicine. In the present study an optimized process for manufacturing porous scaffolds out of the silk protein fibroin was developed. MATERIALS AND METHODS The silk protein fibroin was dissolved in Ajisawa's reagent and the resulting fibroin solution was used to produce scaffolds by means of freeze-thawing cycling. Porosity, pressure and stab resistance as well as degradation behavior were assessed in order to characterize the physical properties of the resulting scaffolds. RESULTS The resulting sponge-like fibroin scaffolds were highly porous while the porosity correlated inversely with the concentration of the starting fibroin solution. Increased initial fibroin concentrations of the scaffolds resulted in increased compressive and cannulation resistance. The majority of the fibroin scaffolds were digested by 1 mg/ml protease XIV in 3 weeks, indicating their biodegradability. CONCLUSION The production of scaffolds made of varying fibroin concentrations by means of freeze-thawing, following dissolution using Ajisawa's reagent, provides a simple and straightforward strategy for adjusting the physical and chemical properties of fibroin scaffolds for various medical applications.
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Affiliation(s)
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Gosau
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Reinhard E Friedrich
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Mehdi Behbahani
- University of Applied Sciences Aachen, Campus Jülich, Jülich, Germany
| | - Mike Barbeck
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Rico Rutkowski
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Simon Burg
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lan Kluwe
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anders Henningsen
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Oral and Maxillofacial Surgery, German Armed Forces Hospital, Hamburg, Germany
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