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Sameni HR, Arab S, Doostmohammadi N, Bahraminasab M. Effect of calcium phosphate/bovine serum albumin coated Al 2O 3-Ti biocomposites on osteoblast response. BIOMED ENG-BIOMED TE 2024; 69:367-382. [PMID: 38258440 DOI: 10.1515/bmt-2023-0123] [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: 04/02/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024]
Abstract
OBJECTIVES The biological performance of aluminum oxide-titanium (Al2O3-Ti) composites requires special attention to achieve improved osteoblastic differentiation, and subsequent osseointegration/strong anchorage with the surrounding bone. Therefore, the aim of this study was to improve them by providing calcium phosphate (Ca-P)/bovine serum albumin (BSA) coating on their surfaces. METHODS Ca-P/BSA coatings were prepared on the surfaces of 75vol.%Ti composites (75Ti-BSA) and pure Ti (100Ti-BSA as a control). The surface characteristics, phase analysis, micro-hardness, BSA release profile and biological responses including cytotoxicity, cell viability, differentiation, mineralization, and cell adhesion were evaluated. RESULTS The results showed that lower cytotoxicity% and higher mitochondrial activity or viability % were associated with the samples with Ca-P/BSA coatings (particularly 75Ti-BSA having 21.3% cytotoxicity, 111.4% and 288.6% viability at day 1 and 7, respectively). Furthermore, the Ca-P/BSA coating could highly enhance the differentiation of pre-osteoblast cells into osteoblasts in 75Ti-BSA group (ALP concentration of 4.8 ng/ml). However, its influence on cell differentiation in 100Ti-BSA group was negligible. Similar results were also obtained from mineralization assay. The results on cell adhesion revealed that the Ca-P/BSA coated samples differently interacted with MC3T3-E1 cells; enlarged flat cells on 75Ti-BSA vs more spindle-shaped cells on 100Ti-BSA. CONCLUSIONS Ca-P/BSA coated Al2O3-Ti provided promising biological performance, superior to that of uncoated composites. Therefore, they have the potential to improve implant osseointegration.
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Affiliation(s)
- Hamid Reza Sameni
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Samaneh Arab
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Nesa Doostmohammadi
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Marjan Bahraminasab
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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2
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Kim M, Schöbel L, Geske M, Boccaccini AR, Ghorbani F. Bovine serum albumin-modified 3D printed alginate dialdehyde-gelatin scaffolds incorporating polydopamine/SiO 2-CaO nanoparticles for bone regeneration. Int J Biol Macromol 2024; 264:130666. [PMID: 38453119 DOI: 10.1016/j.ijbiomac.2024.130666] [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: 09/15/2023] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Three-dimensional (3D) printing allows precise manufacturing of bone scaffolds for patient-specific applications and is one of the most recently developed and implemented technologies. In this study, bilayer and multimaterial alginate dialdehyde-gelatin (ADA-GEL) scaffolds incorporating polydopamine (PDA)/SiO2-CaO nanoparticle complexes were 3D printed using a pneumatic extrusion-based 3D printing technology and further modified on the surface with bovine serum albumin (BSA) for application in bone regeneration. The morphology, chemistry, and in vitro bioactivity of PDA/SiO2-CaO nanoparticle complexes were characterized (n = 3) and compared with those of mesoporous SiO2-CaO nanoparticles. Successful deposition of the PDA layer on the surface of the SiO2-CaO nanoparticles allowed better dispersion in a liquid medium and showed enhanced bioactivity. Rheological studies (n = 3) of ADA-GEL inks consisting of PDA/SiO2-CaO nanoparticle complexes showed results that may indicate better injectability and printability behavior compared to ADA-GEL inks incorporating unmodified nanoparticles. Microscopic observations of 3D printed scaffolds revealed that PDA/SiO2-CaO nanoparticle complexes introduced additional topography onto the surface of 3D printed scaffolds. Additionally, the modified scaffolds were mechanically stable and elastic, closely mimicking the properties of natural bone. Furthermore, protein-coated bilayer scaffolds displayed controllable absorption and biodegradation, enhanced bioactivity, MC3T3-E1 cell adhesion, proliferation, and higher alkaline phosphatase (ALP) activity (n = 3) compared to unmodified scaffolds. Consequently, the present results confirm that ADA-GEL scaffolds incorporating PDA/SiO2-CaO nanoparticle complexes modified with BSA offer a promising approach for bone regeneration applications.
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Affiliation(s)
- MinJoo Kim
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), LMU University Hospital, LMU Munich, 81377 Munich, Germany
| | - Lisa Schöbel
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
| | - Michael Geske
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany; Institute of Polymer Materials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Martensstraße 7, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany.
| | - Farnaz Ghorbani
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany; Department of Translational Health Sciences, University of Bristol, Bristol BS1 3NY, UK.
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Minaychev VV, Teterina AY, Smirnova PV, Menshikh KA, Senotov AS, Kobyakova MI, Smirnov IV, Pyatina KV, Krasnov KS, Fadeev RS, Komlev VS, Fadeeva IS. Composite Remineralization of Bone-Collagen Matrices by Low-Temperature Ceramics and Serum Albumin: A New Approach to the Creation of Highly Effective Osteoplastic Materials. J Funct Biomater 2024; 15:27. [PMID: 38391880 PMCID: PMC10889756 DOI: 10.3390/jfb15020027] [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: 12/12/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
This study examined the effectiveness of coating demineralized bone matrix (DBM) with amorphous calcium phosphate (DBM + CaP), as well as a composite of DBM, calcium phosphate, and serum albumin (DBM + CaP + BSA). The intact structure of DBM promotes the transformation of amorphous calcium phosphate (CaP) into dicalcium phosphate dihydrate (DCPD) with a characteristic plate shape and particle size of 5-35 µm. The inclusion of BSA in the coating resulted in a better and more uniform distribution of CaP on the surface of DBM trabeculae. MG63 cells showed that both the obtained forms of CaP and its complex with BSA did not exhibit cytotoxicity up to a concentration of 10 mg/mL in vitro. Ectopic (subcutaneous) implantation in rats revealed pronounced biocompatibility, as well as strong osteoconductive, osteoinductive, and osteogenic effects for both DBM + CaP and DBM + CaP + BSA, but more pronounced effects for DBM + CaP + BSA. In addition, for the DBM + CaP + BSA samples, there was a pronounced full physiological intrafibrillar biomineralization and proangiogenic effect with the formation of bone-morrow-like niches, accompanied by pronounced processes of intramedullary hematopoiesis, indicating a powerful osteogenic effect of this composite.
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Affiliation(s)
- Vladislav V Minaychev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Anastasia Yu Teterina
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Polina V Smirnova
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Ksenia A Menshikh
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Department of Health Sciences, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Anatoliy S Senotov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Margarita I Kobyakova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Research Institute of Clinical and Experimental Lymphology-Branch of the Institute of Cytology and Genetics Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia
| | - Igor V Smirnov
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Kira V Pyatina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Kirill S Krasnov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Roman S Fadeev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Vladimir S Komlev
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
| | - Irina S Fadeeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, 119334 Moscow, Russia
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Saurav S, Sharma P, Kumar A, Tabassum Z, Girdhar M, Mamidi N, Mohan A. Harnessing Natural Polymers for Nano-Scaffolds in Bone Tissue Engineering: A Comprehensive Overview of Bone Disease Treatment. Curr Issues Mol Biol 2024; 46:585-611. [PMID: 38248340 PMCID: PMC10814241 DOI: 10.3390/cimb46010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/24/2023] [Accepted: 12/30/2023] [Indexed: 01/23/2024] Open
Abstract
Numerous surgeries are carried out to replace tissues that have been harmed by an illness or an accident. Due to various surgical interventions and the requirement of bone substitutes, the emerging field of bone tissue engineering attempts to repair damaged tissues with the help of scaffolds. These scaffolds act as template for bone regeneration by controlling the development of new cells. For the creation of functional tissues and organs, there are three elements of bone tissue engineering that play very crucial role: cells, signals and scaffolds. For the achievement of these aims, various types of natural polymers, like chitosan, chitin, cellulose, albumin and silk fibroin, have been used for the preparation of scaffolds. Scaffolds produced from natural polymers have many advantages: they are less immunogenic as well as being biodegradable, biocompatible, non-toxic and cost effective. The hierarchal structure of bone, from microscale to nanoscale, is mostly made up of organic and inorganic components like nanohydroxyapatite and collagen components. This review paper summarizes the knowledge and updates the information about the use of natural polymers for the preparation of scaffolds, with their application in recent research trends and development in the area of bone tissue engineering (BTE). The article extensively explores the related research to analyze the advancement of nanotechnology for the treatment of bone-related diseases and bone repair.
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Affiliation(s)
- Sushmita Saurav
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
| | - Prashish Sharma
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
| | - Anil Kumar
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi 110067, Delhi, India;
| | - Zeba Tabassum
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
| | - Madhuri Girdhar
- Division of Research and Development, Lovely Professional University, Phagwara 144401, Punjab, India;
| | - Narsimha Mamidi
- Wisconsin Centre for Nano Biosystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Anand Mohan
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
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5
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Xu X, Hu J, Xue H, Hu Y, Liu YN, Lin G, Liu L, Xu RA. Applications of human and bovine serum albumins in biomedical engineering: A review. Int J Biol Macromol 2023; 253:126914. [PMID: 37716666 DOI: 10.1016/j.ijbiomac.2023.126914] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023]
Abstract
Serum albumin, commonly recognized as a predominant major plasma protein, is ubiquitously distributed among vertebrates, demonstrating versatility and widespread accessibility. Numerous studies have discussed the composition and attributes of human and bovine serum albumin; nonetheless, few systematic and comprehensive summaries on human and bovine serum albumin exist. This paper reviews the applications of human and bovine serum albumin in biomedical engineering. First, we introduce the differences in the structure of human and bovine serum albumin. Next, we describe the extraction methods for human and bovine serum albumin (fractionation process separation, magnetic adsorption, reverse micellar (RM) extraction, and genetic engineering) and the advantages and disadvantages of recently developed extraction methods. The characteristics of different processing forms of human and bovine serum albumin are also discussed, concomitantly elucidating their intrinsic properties, functions, and applications in biomedicine. Notably, their pivotal functions as carriers for drugs and tissue-engineered scaffolds, as well as their contributions to cell reproduction and bioimaging, are critically examined. Finally, to provide guidance for researchers in their future work, this review summarizes the current state of human and bovine serum albumin research and outlines potential future research topics.
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Affiliation(s)
- Xinhao Xu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, China
| | - Jinyu Hu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Huaqian Xue
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, China; School of Pharmacy, Ningxia Medical University, Ningxia 750004, China
| | - Yingying Hu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ya-Nan Liu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Guanyang Lin
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Liangle Liu
- The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, China.
| | - Ren-Ai Xu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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6
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Gyulay KK, Karászi P, Rédei M, Sólymos P, Schandl K, Lacza Z, Horváthy DB. Evaluation of Serum Albumin-Coated Bone Allograft for Bone Regeneration: A Seven-Year Follow-Up Study of 26 Cases. Int J Mol Sci 2023; 24:ijms24119232. [PMID: 37298182 DOI: 10.3390/ijms24119232] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
We have previously reported that serum albumin-coated bone allograft (BoneAlbumin, BA) is an effective bone substitute. It improves bone regeneration at the patellar and tibial donor sites six months after harvesting bone-patellar tendon-bone (BPTB) autografts for primary anterior cruciate ligament reconstruction (ACLR). In the present study, we examined these donor sites seven years after implantation. The study group (N = 10) received BA-enhanced autologous cancellous bone at the tibial and BA alone at the patellar site. The control group (N = 16) received autologous cancellous bone at the tibial and blood clot at the patellar site. We evaluated subcortical density, cortical thickness, and bone defect volume via CT scans. At the patellar site, subcortical density was significantly higher in the BA group at both time points. There was no significant difference in cortical thickness between the two groups at either donor site. The control group's bone defect significantly improved and reached the BA group's values at both sites by year seven. Meanwhile, the bone defects in the BA group did not change significantly and were comparable to the six-month measurements. No complications were observed. There are two limitations in this study: The number of patients recruited is small, and the randomization of the patients could have improved the quality of the study as the control group patients were older compared to the study group patients. Our 7-year results seem to demonstrate that BA is a safe and effective bone substitute that supports faster regeneration of donor sites and results in good-quality bone tissue at the time of ACLR with BPTB autografts. However, studies with a larger number of patients are required to definitively confirm the preliminary results of our study.
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Affiliation(s)
- Kata K Gyulay
- Department of Interventional Radiology, Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary
- Department of Radiology, Medical Imaging Centre, Semmelweis University, 1083 Budapest, Hungary
| | - Péter Karászi
- Department of Sports Surgery, Saint George University Teaching Hospital of County-Fejér, 8000 Székesfehérvár, Hungary
| | - Mátyás Rédei
- Department of Interventional Radiology, Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary
- Department of Radiology, Medical Imaging Centre, Semmelweis University, 1083 Budapest, Hungary
| | - Petra Sólymos
- Department of Interventional Radiology, Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary
- Department of Radiology, Medical Imaging Centre, Semmelweis University, 1083 Budapest, Hungary
| | - Károly Schandl
- Department of Sports Surgery, Saint George University Teaching Hospital of County-Fejér, 8000 Székesfehérvár, Hungary
| | - Zsombor Lacza
- Department of Sports Physiology, University of Physical Education, 1123 Budapest, Hungary
- Translational Medicine Institute, Semmelweis University, 1085 Budapest, Hungary
| | - Dénes B Horváthy
- Department of Interventional Radiology, Heart and Vascular Centre, Semmelweis University, 1122 Budapest, Hungary
- Department of Radiology, Medical Imaging Centre, Semmelweis University, 1083 Budapest, Hungary
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7
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Junka R, Zhou X, Wang W, Yu X. Albumin-Coated Polycaprolactone (PCL)-Decellularized Extracellular Matrix (dECM) Scaffold for Bone Regeneration. ACS APPLIED BIO MATERIALS 2022; 5:5634-5644. [PMID: 36374246 DOI: 10.1021/acsabm.2c00686] [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: 11/16/2022]
Abstract
With the emphasis on collagen and hydroxyapatite, the main structural components of bone tissue, synthetic grafts fall short of matching the clinical efficacy of autologous bone grafts. Excluded non-collagenous protein (NCPs) and carbohydrates also participate in critical cell signaling cascades and guide mineral deposition during intermediate stages of bone healing. By mimicking the native fracture repair process, polymeric scaffolds that incorporate calcium-binding moieties present in fibrocartilage can potentially enhance their bioactivity, mineralization, and bone growth. Likewise, coating polymeric fibers with serum albumin is an additional strategy that can impart collagen-like biofunctionality and further increase mineral deposition on the fibrous surface. Here, a combination of electrospun polycaprolactone (PCL) fibers with chondrocyte-derived decellularized extracellular matrix (dECM) and albumin coating were investigated as a fibrocartilage-mimetic scaffold that can serve as a woven bone precursor for bone regeneration. PCL fibrous constructs coated with dECM and albumin are shown to synergistically increase calcium concentration and calcium phosphate (CaP) deposition in a simulated body fluid biomineralization assay. Albumin/dECM coating increased osteoblast proliferation and mineral deposition in culture. In contrast, CaP coating transformed osteoblast bone lining morphology into cuboidal phenotype and arrested their proliferation. Cell sheets of osteoblasts cultured on dECM/albumin/CaP-coated constructs exhibited an increase in calcium deposition and secretion of collagen, osteopontin, osteocalcin, and bone morphogenetic protein. These results highlight the potential of biomolecular coatings to enhance bone-mimetic properties of synthetic nanofibrous scaffolds, stimulate critical protein and mineral deposition, and augment the bone's capacity to heal. Thus, mimicking the intermediate stages of bone regeneration by incorporating calcium-binding moieties may prove to be a useful strategy for improving the clinical outcomes of synthetic bone grafts.
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Affiliation(s)
- Radoslaw Junka
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey07030, United States
| | - Xiaqing Zhou
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey07030, United States
| | - Weiwei Wang
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey07030, United States
| | - Xiaojun Yu
- Department of Biomedical Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, New Jersey07030, United States
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Haag SL, Martinez-Alvarez J, Schiele NR, Bernards MT. Delivery of Bioactive Albumin from Multi-Functional Polyampholyte Hydrogels. J Appl Polym Sci 2022; 139:e52846. [PMID: 36404914 PMCID: PMC9673991 DOI: 10.1002/app.52846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/02/2022] [Indexed: 12/27/2022]
Abstract
Tissue engineered scaffolds are currently being explored to aid in healing and regeneration of non-union fractures in bone. Additionally, albumin has been demonstrated to provide benefits to healing when applied to injury sites. This paper focuses on delivery of calcium modified, bioactive bovine serum albumin (BSA) from a multi-functional polyampholyte polymer scaffold. First, the inherent nonfouling and conjugation properties of the polyampholyte hydrogel were verified to determine the impact of calcium exposure. The polyampholyte hydrogel delivery platform was then assessed with calcium titrations and osteoblast-like cell (MC3T3-E1) adhesion, proliferation, and viability evaluations. Finally, integrin inhibitors were used to identify the binding mechanisms that mediate cell adhesion to the calcium-modified BSA-conjugated hydrogels. An increase in cell adhesion was observed following calcium exposure up to 0.075 M, although this and higher calcium concentrations affected hydrogel stability and cell growth. BSA exposed to 0.05 M calcium and delivered from polyampholyte hydrogels promoted the most promising viable cell adhesion over 7 days. Cell adhesion to the calcium-modified BSA-conjugated hydrogels appeared to be regulated by arginine-glycine-aspartic acid (RGD) and collagen specific integrins. These results demonstrate that the delivery of calcium modified BSA from an implantable polymer scaffold is promising for bone tissue engineering applications.
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Affiliation(s)
- Stephanie L. Haag
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID 83844
| | | | - Nathan R. Schiele
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID 83844
| | - Matthew T. Bernards
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID 83844
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9
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Albumin as a Biomaterial and Therapeutic Agent in Regenerative Medicine. Int J Mol Sci 2022; 23:ijms231810557. [PMID: 36142472 PMCID: PMC9502107 DOI: 10.3390/ijms231810557] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/31/2022] [Accepted: 09/06/2022] [Indexed: 02/07/2023] Open
Abstract
Albumin is a constitutional plasma protein, with well-known biological functions, e.g., a nutrient for stem cells in culture. However, albumin is underutilized as a biomaterial in regenerative medicine. This review summarizes the advanced therapeutic uses of albumin, focusing on novel compositions that take advantage of the excellent regenerative potential of this protein. Albumin coating can be used for enhancing the biocompatibility of various types of implants, such as bone grafts or sutures. Albumin is mainly known as an anti-attachment protein; however, using it on implantable surfaces is just the opposite: it enhances stem cell adhesion and proliferation. The anticoagulant, antimicrobial and anti-inflammatory properties of albumin allow fine-tuning of the biological reaction to implantable tissue-engineering constructs. Another potential use is combining albumin with natural or synthetic materials that results in novel composites suitable for cardiac, neural, hard and soft tissue engineering. Recent advances in materials have made it possible to electrospin the globular albumin protein, opening up new possibilities for albumin-based scaffolds for cell therapy. Several described technologies have already entered the clinical phase, making good use of the excellent biological, but also regulatory, manufacturing and clinical features of serum albumin.
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10
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Patel D, Haag SL, Patel JS, Ytreberg FM, Bernards MT. Paired Simulations and Experimental Investigations into the Calcium-Dependent Conformation of Albumin. J Chem Inf Model 2022; 62:1282-1293. [PMID: 35194993 DOI: 10.1021/acs.jcim.1c01104] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Serum albumin is the most abundant protein in blood plasma, and it is involved in multiple biological processes. Serum albumin has recently been adapted for improving biomaterial integration with bone tissue, and studies have shown the importance of this protein in bone repair and regeneration. However, the mechanism of action is not yet clear. In stark contrast, other studies have demonstrated that albumin blocks cell adhesion to surfaces, which is seen as a limitation to its bone healing role. These apparent contradictions suggest that the conformation of albumin facilitates its bioactivity, leading to enhanced bone repair. Serum albumin is known to play a major role in maintaining the calcium ion concentration in blood plasma. Due to the prevalence of calcium at bone repair and regeneration sites, it has been hypothesized that calcium binding to serum albumin triggers a conformational change, leading to bioactivity. In the current study, molecular modeling approaches including molecular docking, atomic molecular dynamics (MD) simulation, and coarse-grained MD simulation were used to test this hypothesis by investigating the conformational changes induced in bovine serum albumin by interaction with calcium ions. The computational results were qualitatively validated with experimental Fourier-transform infrared spectroscopy analysis. We find that free calcium ions in solution transiently bind with the three major loops in albumin, triggering a conformational change where N-terminal and C-terminal domains separate from each other in a partial unfolding process. The separation distance between these domains was found to correlate with the calcium ion concentration. The experimental data support the simulation results showing that albumin has enhanced conformational heterogeneity upon exposure to intermediate levels of calcium, without any significant secondary structure changes.
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Affiliation(s)
- Dharmeshkumar Patel
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow 83844, Idaho, United States.,Laboratory of Biochemical Pharmacology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta 30322, Georgia, United States
| | - Stephanie L Haag
- Department of Chemical and Biological Engineering, University of Idaho, Moscow 83844, Idaho, United States
| | - Jagdish Suresh Patel
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow 83844, Idaho, United States.,Department of Biological Sciences, University of Idaho, Moscow 83844, Idaho, United States
| | - F Marty Ytreberg
- Institute for Modeling Collaboration and Innovation, University of Idaho, Moscow 83844, Idaho, United States.,Department of Physics, University of Idaho, Moscow 83844, Idaho, United States
| | - Matthew T Bernards
- Department of Chemical and Biological Engineering, University of Idaho, Moscow 83844, Idaho, United States
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11
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Wang Y, Gan Z, Lu H, Liu Z, Shang P, Zhang J, Yin W, Chu H, Yuan R, Ye Y, Chen P, Rong M. Impact of High-Altitude Hypoxia on Early Osseointegration With Bioactive Titanium. Front Physiol 2021; 12:689807. [PMID: 35035356 PMCID: PMC8753411 DOI: 10.3389/fphys.2021.689807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/22/2021] [Indexed: 01/03/2023] Open
Abstract
Nowadays, the bone osseointegration in different environments is comparable, but the mechanism is unclear. This study aimed to investigate the osseointegration of different bioactive titanium surfaces under normoxic or high-altitude hypoxic environments. Titanium implants were subjected to one of two surface treatments: (1) sanding, blasting, and acid etching to obtain a rough surface, or (2) extensive polishing to obtain a smooth surface. Changes in the morphology, proliferation, and protein expression of osteoblasts on the rough and smooth surfaces were examined, and bone formation was studied through western blotting and animal-based experiments. Our findings found that a hypoxic environment and rough titanium implant surface promoted the osteogenic differentiation of osteoblasts and activated the JAK1/STAT1/HIF-1α pathway in vitro. The animal study revealed that following implant insertion in tibia of rabbit, bone repair at high altitudes was slower than that at low altitudes (i.e., in plains) after 2weeks; however, bone formation did not differ significantly after 4weeks. The results of our study showed that: (1) The altitude hypoxia environment would affect the early osseointegration of titanium implants while titanium implants with rough surfaces can mitigate the effects of this hypoxic environment on osseointegration, (2) the mechanism may be related to the activation of JAK1/STAT1/HIF-1α pathway, and (3) our results suggest the osteogenesis of titanium implants, such as oral implants, is closely related to the oxygen environment. Clinical doctors, especially dentists, should pay attention to the influence of hypoxia on early osseointegration in patients with high altitude. For example, it is better to choose an implant system with rough implant surface in the oral cavity of patients with tooth loss at high altitude.
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Affiliation(s)
- Yarong Wang
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Zekun Gan
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Haibin Lu
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Ziyi Liu
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
| | - Jian Zhang
- College of Animal Science, Tibet Agriculture and Animal Husbandry University, Linzhi, China
| | - Wuwei Yin
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Hongxing Chu
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | | | - Yingxin Ye
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Pei Chen
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
- Pei Chen,
| | - Mingdeng Rong
- Department of Periodontology and Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Mingdeng Rong,
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12
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Konka J, Espanol M, Bosch BM, de Oliveira E, Ginebra MP. Maturation of biomimetic hydroxyapatite in physiological fluids: a physicochemical and proteomic study. Mater Today Bio 2021; 12:100137. [PMID: 34632362 PMCID: PMC8487082 DOI: 10.1016/j.mtbio.2021.100137] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/20/2021] [Accepted: 09/04/2021] [Indexed: 11/26/2022] Open
Abstract
Biomimetic calcium-deficient hydroxyapatite (CDHA) as a bioactive material exhibits exceptional intrinsic osteoinductive and osteogenic properties because of its nanostructure and composition, which promote a favorable microenvironment. Its high reactivity has been hypothesized to play a relevant role in the in vivo performance, mediated by the interaction with the biological fluids, which is amplified by its high specific surface area. Paradoxically, this high reactivity is also behind the in vitro cytotoxicity of this material, especially pronounced in static conditions. The present work explores the structural and physicochemical changes that CDHA undergoes in contact with physiological fluids and to investigate its interaction with proteins. Calcium-deficient hydroxyapatite discs with different micro/nanostructures, coarse (C) and fine (F), were exposed to cell-free complete culture medium over extended periods of time: 1, 7, 14, 21, 28, and 50 days. Precipitate formation was not observed in any of the materials in contact with the physiological fluid, which would indicate that the ionic exchanges were linked to incorporation into the crystal structure of CDHA or in the hydrated layer. In fact, CDHA experienced a maturation process, with a progressive increase in crystallinity and the Ca/P ratio, accompanied by an uptake of Mg and a B-type carbonation process, with a gradual propagation into the core of the samples. However, the reactivity of biomimetic hydroxyapatite was highly dependent on the specific surface area and was amplified in nanosized needle-like crystal structures (F), whereas in coarse specimens the ionic exchanges were restricted to the surface, with low penetration in the material bulk. In addition to showing a higher protein adsorption on F substrates, the proteomics study revealed the existence of protein selectivity toward F or C microstructures, as well as the capability of CDHA, and more remarkably of F-CDHA, to concentrate specific proteins from the culture medium. Finally, a substantial improvement in the material's ability to support cell proliferation was observed after the CDHA maturation process.
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Affiliation(s)
- J Konka
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019, Barcelona, Spain
| | - M Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019, Barcelona, Spain
| | - B M Bosch
- Bioengineering Institute of Technology (BIT), Universitat Internacional de Catalunya (UIC), Josep Trueta s/n, 08195, Barcelona, Spain
| | - E de Oliveira
- Plataforma de Proteòmica, Parc Científic de Barcelona, PCB, Barcelona, Spain
| | - M-P Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019, Barcelona, Spain.,Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya (UPC), Av. Eduard Maristany 16, 08019, Barcelona, Spain.,Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, 08028, Barcelona, Spain
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13
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Evaluation of the Histomorphometric and Micromorphometric Performance of a Serum Albumin-Coated Bone Allograft Combined with A-PRF for Early and Conventional Healing Protocols after Maxillary Sinus Augmentation: A Randomized Clinical Trial. MATERIALS 2021; 14:ma14071810. [PMID: 33917513 PMCID: PMC8038833 DOI: 10.3390/ma14071810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/29/2021] [Accepted: 04/01/2021] [Indexed: 11/16/2022]
Abstract
The aim of this study was to compare the microarchitecture of augmented bone following maxillary sinus augmentation (MSA) after healing periods of 3 (test) and 6 (control) months using the combination of advanced platelet-rich fibrin (A-PRF) and a serum albumin-coated bone allograft (SACBA). Twenty-six patients with 30 surgical sites who required two-stage MSA were enrolled and grafted with the combination of A-PRF and SACBAs. The surgical sites were randomly allocated to the test or control group. During implant site preparation, 17 bone core biopsy samples were collected from each study group for histological, histomorphometric and micromorphometric analysis. Resonance frequency analysis was performed at the time of implant placement and 6, 8, 10, and 12 weeks postoperatively. The percentage of newly formed bone was 44.89 ± 9.49% in the test group and 39.75 ± 8.15% in the control group (p = 0.100). The results of the µCT analysis showed no significant differences in morphometric parameters between the study groups. The implant stability quotient was not significantly different between the two groups at 10 and 12 weeks postoperatively. Based on these findings, the total treatment time may be reduced by 3 months with the use of A-PRF and SACBAs for two-stage MSA.
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14
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Haag SL, Schiele NR, Bernards MT. Enhancement and mechanisms of MC3T3-E1 osteoblast-like cell adhesion to albumin through calcium exposure. Biotechnol Appl Biochem 2021; 69:492-502. [PMID: 33586804 DOI: 10.1002/bab.2126] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/09/2021] [Indexed: 01/06/2023]
Abstract
Serum albumin is the most prominent protein in blood, and it aids in bone fracture healing, though the manner through which enhanced healing occurs is not well understood. This study investigates the influence of calcium on the bioactivity of albumin due to the prevalence of calcium at bone injury sites. Bovine serum albumin (BSA) was exposed to varying concentrations of calcium, adsorbed to tissue culture polystyrene, and the subsequent BSA-coated surfaces were evaluated with calcium titration, and cell adhesion, viability, and binding inhibition studies. Calcium-modified BSA improved overall MC3T3-E1 osteoblast-like cell adhesion, although high calcium concentrations induced cell death. Inhibiting specific integrins revealed that without calcium exposure, cell binding to BSA was primarily mediated by integrins that typically bind to the GFOGER sequence of collagen. As calcium exposure increases, the primary binding interaction transitioned to integrins known to bind RGD. However, cell binding to calcium-modified BSA was not completely eliminated during the inhibition studies indicating additional unidentified binding interactions occur. Overall, these results suggest that the exposure to calcium induces conformational changes that affect the cell-binding bioactivity of BSA, which may explain the beneficial impact of albumin in bone tissue.
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Affiliation(s)
- Stephanie L Haag
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID, USA
| | - Nathan R Schiele
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID, USA
| | - Matthew T Bernards
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID, USA
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15
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Yuan B, Wang Z, Zhao Y, Tang Y, Zhou S, Sun Y, Chen X. In Vitro and In Vivo Study of a Novel Nanoscale Demineralized Bone Matrix Coated PCL/β-TCP Scaffold for Bone Regeneration. Macromol Biosci 2020; 21:e2000336. [PMID: 33346401 DOI: 10.1002/mabi.202000336] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/29/2020] [Indexed: 12/14/2022]
Abstract
Bone defects remains a challenge for surgeons. Bone graft scaffold can fill the defect and enhance the bone regeneration. Demineralized bone matrix (DBM) is an allogeneic bone graft substitute, which can only be used as a filling material rather than a structural bone graft. Coating of the scaffolds with nanoscale DBM may enhance the osteoinductivity or osteoconductivity. Herein the lyophilization method is presented to coat the nano-DBM on surface of the porous polycaprolactone (PCL)/β-tricalcium phosphate (β-TCP) scaffolds fabricated by 3D printing technology. The morphology, elastic modulus, in vitro cell biocompatibility, and in vivo performance are investigated. Scanning electron microscope (SEM) shows DBM particle clusters with size of 200-500 nm are observed on scaffolds fibers after coating. MC3T3-E1 cells on nano-DBM coated PCL/β-TCP scaffold show better activity than on PCL/β-TCP scaffold. In vivo tests show better infiltration of new bone tissue in nano-DBM coated PCL/β-TCP scaffold than PCL/β-TCP scaffold via the interface. These results show the presence of nano-DBM coating on PCL/β-TCP scaffold could enhance the attachment, proliferation, and viability of cells and benefit for the new bone formation surrounding and deep inside the scaffolds. Nano-DBM could potentially be used as a new kind of biomaterial for bone defect treatment.
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Affiliation(s)
- Bo Yuan
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Zhiwei Wang
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yin Zhao
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yifan Tang
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Shengyuan Zhou
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Yanqing Sun
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
| | - Xiongsheng Chen
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, P. R. China
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16
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Yang Y, Xiao Y. Biomaterials Regulating Bone Hematoma for Osteogenesis. Adv Healthc Mater 2020; 9:e2000726. [PMID: 32691989 DOI: 10.1002/adhm.202000726] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/18/2020] [Indexed: 12/11/2022]
Abstract
Blood coagulation in tissue healing not only prevents blood loss, but also forms a natural scaffold for tissue repair and regeneration. As blood clot formation is the initial and foremost phase upon bone injury, and the quality of blood clot (hematoma) orchestrates the following inflammatory and cellular processes as well as the subsequent callus formation and bone remodeling process. Inspired by the natural healing hematoma, tissue-engineered biomimic scaffold/hydrogels and blood prefabrication strategies attract significant interests in developing functional bone substitutes. The alteration of the fracture hematoma ca significantly accelerate or impair the overall bone healing process. This review summarizes the impact of biomaterials on blood coagulation and provides evidence on fibrin network structure, growth factors, and biomolecules that contribute to bone healing within the hematoma. The aim is to provide insights into the development of novel implant and bone biomaterials for enhanced osteogenesis. Advances in the understanding of biomaterial characteristics (e.g., morphology, chemistry, wettability, and protein adsorption) and their effect on hematoma properties are highlighted. Emphasizing the importance of the initial healing phase of the hematoma endows the design of advanced biomaterials with the desired regulatory properties for optimal coagulation and hematoma properties, thereby facilitating enhanced osteogenesis and ideal therapeutic effects.
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Affiliation(s)
- Ying Yang
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, 4059, Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD, 4059, Australia
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17
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Gundogan Gİ. A simple and inexpensive method for evaluation of in vitro cell adhesion on screws. Cytotechnology 2020; 72:10.1007/s10616-020-00428-1. [PMID: 33085034 PMCID: PMC7695796 DOI: 10.1007/s10616-020-00428-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 10/14/2020] [Indexed: 10/23/2022] Open
Abstract
Only a limited number of techniques are available for assessing the effect of different coating materials on cell adherence to screws. In this study, we describe a simple and inexpensive method for evaluation of cell adhesion on irregular surfaces such as the surgical or implant screws. For this purpose, we prepared semi-submerged screws in the petri dishes using agar. Using BSA- or HA-coated screws, we tested whether BSA or HA could improve cell adherence when used as coating materials. Agar-coated screws were used as internal control. Then the "ratio of cell adherence" was calculated by subtracting the reference RCA value obtained from the agar coated screws (internal control). When compared to that of the non-coated screws both the HA- and BSA-coating improved cell adherence on the screws by 2.34 and 2.72 fold respectively. Similarly, MTT assay data revealed that the metabolic capacities of cells on HA- or BSA-coated screws were improved by 2.36 and 2.86 fold respectively. These findings suggest that this protocol can be used for comparing the ability of cells to attach on irregular surfaces such as dental or orthopedic screws and assessing their viability.
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Affiliation(s)
- Gul İpek Gundogan
- Department of Histology and Embryology, Faculty of Medicine, Istanbul Yeni Yuzyil University, Maltepe Mahallesi, Yılanlı Ayazma Caddesi, No: 26, Cevizlibağ, Zeytinburnu, 34010, İstanbul, Turkey.
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18
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Shoji S, Uchida K, Satio W, Sekiguchi H, Inoue G, Miyagi M, Takata K, Yokozeki Y, Takaso M. Acceleration of bone union by in situ-formed hydrogel containing bone morphogenetic protein-2 in a mouse refractory fracture model. J Orthop Surg Res 2020; 15:426. [PMID: 32948214 PMCID: PMC7501615 DOI: 10.1186/s13018-020-01953-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 09/09/2020] [Indexed: 11/30/2022] Open
Abstract
Background An enzymatic crosslinking strategy using hydrogen peroxide and horseradish peroxidase is receiving increasing attention for application with in situ-formed hydrogels (IFHs). Several studies have reported the application of IFHs in cell delivery and tissue engineering. IFHs may also be ideal carrier materials for bone repair, although their potential as a carrier for bone morphogenetic protein (BMP)-2 has yet to be examined. Here, we examined the effect of an IFH made of hyaluronic acid (IFH-HA) containing BMP-2 in promoting osteogenesis in a mouse refractory fracture model. Methods Immediately following a fracture procedure, animals either received no treatment (control) or an injection of IFH-HA/PBS or IFH-HA containing 2 μg BMP-2 (IFH-HA/BMP-2) into the fracture site (n = 16, each treatment). Results Fracture sites injected with IFH-HA/BMP-2 showed significantly greater bone volume, bone mineral content, and bone union compared with sites receiving no treatment or treated with IFH-HA/PBS alone (each n = 10). Gene expression levels of osteogenic markers, Alpl, Bglap, and Osx, were significantly raised in the IFH-HA/BMP-2 group compared to the IFH-HA/PBS and control groups (each n = 6). Conclusion IFH-HA/BMP-2 may contribute to the treatment of refractory fractures.
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Affiliation(s)
- Shintaro Shoji
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Kentaro Uchida
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan. .,Shonan University of Medical Sciences Research Institute, Nishikubo 500, Chigasaki City, Kanagawa, 253-0083, Japan.
| | - Wataru Satio
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Hiroyuki Sekiguchi
- Shonan University of Medical Sciences Research Institute, Nishikubo 500, Chigasaki City, Kanagawa, 253-0083, Japan
| | - Gen Inoue
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masayuki Miyagi
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Ken Takata
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Yuji Yokozeki
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masashi Takaso
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
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19
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Horváthy DB, Szántó P, Marschall B, Bagó M, Csery M, Hornyák I, Doros A, Lacza Z. Ketamine decreases cell viability of bone explants and impairs bone healing in rats. J Orthop Surg Res 2020; 15:46. [PMID: 32046745 PMCID: PMC7014735 DOI: 10.1186/s13018-020-1579-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 02/04/2020] [Indexed: 11/17/2022] Open
Abstract
Background Ketamine is a widely used anesthetic in experimental medicine. We have also used ketamine for surgical interventions and imaging in rats and found significantly impaired ossification between identically performed experiments, which only differed in the number of anesthetic events. In order to investigate this phenomenon, we estimated the absorbed ionizing radiation and also studied whether ketamine administration has disadvantageous effect on bone cell viability. Methods Spongious bone chips and parietal bone disks were harvested from rats. Explants were incubated in stem cell media containing 0.02, 0.2 and 2 mM ketamine. After 3 days of incubation, tetrazolium-based spectrophotometric assay was performed to measure cell viability. Size-specific dose estimation was used to calculate ionizing radiation of computed tomography imaging. Results We found that ketamine supplementation with 0.2 mM slightly decreased cell viability, while 2 mM caused significant reduction both in the spongious and cortical explants. The cumulative ionizing radiation was found to be negligible compared to irradiation dosages used to impair ossification. Conclusions We conclude that multiple ketamine administration was responsible for the diminished regenerative potential of bone tissue in the present experimental setup. For this reason, we suggest that ketamine anesthesia should be avoided in studies investigating bone regeneration.
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Affiliation(s)
- Dénes B Horváthy
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary. .,Department of Transplantation and Surgery, Semmelweis University, 23-25., Baross str, Budapest, H-1082, Hungary.
| | - Péter Szántó
- National Koranyi Institute for Pulmonology, Budapest, Hungary
| | - Bence Marschall
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Marcell Bagó
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Márton Csery
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - István Hornyák
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Attila Doros
- Department of Transplantation and Surgery, Semmelweis University, 23-25., Baross str, Budapest, H-1082, Hungary
| | - Zsombor Lacza
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary.,University of Physical Education, Budapest, Hungary
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20
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Kivovics M, Szabó BT, Németh O, Iványi D, Trimmel B, Szmirnova I, Orhan K, Mijiritsky E, Szabó G, Dobó-Nagy C. Comparison between Micro-Computed Tomography and Cone-Beam Computed Tomography in the Assessment of Bone Quality and a Long-Term Volumetric Study of the Augmented Sinus Grafted with an Albumin Impregnated Allograft. J Clin Med 2020; 9:jcm9020303. [PMID: 31973237 PMCID: PMC7073646 DOI: 10.3390/jcm9020303] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 01/20/2020] [Indexed: 12/16/2022] Open
Abstract
The purpose of our study was to compare micromorphometric data obtained by cone-beam computed-tomography (CBCT) and microcomputed-tomography (micro-CT) of the augmented sinus and to evaluate the long-term stability of the bone gain achieved using BoneAlbumin. Sinus lifts, and after 6-months, healing bone-biopsy and implant placement were carried out. Specimens were analyzed by micro-CT. A total of 16 samples were collected from nine patients (mean age 54.7 ± 6.5 years). Pre-, postoperative, and 3-year control CBCT-data were registered to determine from where the biopsy samples were harvested. Micromorphometric variables were calculated from the micro-CT- and CBCT-data, and their correlation was determined by Spearman's test. The volume of augmented bone was calculated at the time of implant placement and after 3 years. A positive correlation was found between bone-volume fraction, trabecular-separation, open-, and total-porosity, while a negative correlation was found between trabecular-thickness obtained from CBCT- and micro-CT-data (p < 0.05). Mean volumetric reduction of 39.28% (11.88-60.02%) was observed. Correlation of CBCT- and micro-CT-data suggested that micromorphometric analysis of CBCT reconstructions of the augmented sinuses provided reliable information on the microarchitecture of augmented bone. CBCT as a modality might be adequate in the analysis of bone quality in the augmented sinus. At the 3-year, control sinus grafts showed volumetric stability.
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Affiliation(s)
- Márton Kivovics
- Department of Community Dentistry, Semmelweis University, 1088 Budapest, Hungary; (O.N.); (D.I.)
- Correspondence:
| | - Bence Tamás Szabó
- Department of Oral Diagnostics, Semmelweis University, 1088 Budapest, Hungary; (B.T.S.); (B.T.); (C.D.-N.)
| | - Orsolya Németh
- Department of Community Dentistry, Semmelweis University, 1088 Budapest, Hungary; (O.N.); (D.I.)
| | - Dóra Iványi
- Department of Community Dentistry, Semmelweis University, 1088 Budapest, Hungary; (O.N.); (D.I.)
| | - Bálint Trimmel
- Department of Oral Diagnostics, Semmelweis University, 1088 Budapest, Hungary; (B.T.S.); (B.T.); (C.D.-N.)
| | - Ilona Szmirnova
- Department of Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary; (I.S.); (G.S.)
| | - Kaan Orhan
- Dentomaxillofacial Radiology Department, Ankara University, Ankara 06560, Turkey;
| | - Eitan Mijiritsky
- Head and Neck Maxillofacial Surgery, Department of Otoryngology, Tel-Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv 62431, Israel;
| | - György Szabó
- Department of Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary; (I.S.); (G.S.)
| | - Csaba Dobó-Nagy
- Department of Oral Diagnostics, Semmelweis University, 1088 Budapest, Hungary; (B.T.S.); (B.T.); (C.D.-N.)
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21
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Katarivas Levy G, Ong J, Birch MA, Justin AW, Markaki AE. Albumin-Enriched Fibrin Hydrogel Embedded in Active Ferromagnetic Networks Improves Osteoblast Differentiation and Vascular Self-Organisation. Polymers (Basel) 2019; 11:polym11111743. [PMID: 31652977 PMCID: PMC6918167 DOI: 10.3390/polym11111743] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 12/15/2022] Open
Abstract
Porous coatings on prosthetic implants encourage implant fixation. Enhanced fixation may be achieved using a magneto-active porous coating that can deform elastically in vivo on the application of an external magnetic field, straining in-growing bone. Such a coating, made of 444 ferritic stainless steel fibres, was previously characterised in terms of its mechanical and cellular responses. In this work, co-cultures of human osteoblasts and endothelial cells were seeded into a novel fibrin-based hydrogel embedded in a 444 ferritic stainless steel fibre network. Albumin was successfully incorporated into fibrin hydrogels improving the specific permeability and the diffusion of fluorescently tagged dextrans without affecting their Young’s modulus. The beneficial effect of albumin was demonstrated by the upregulation of osteogenic and angiogenic gene expression. Furthermore, mineralisation, extracellular matrix production, and formation of vessel-like structures were enhanced in albumin-enriched fibrin hydrogels compared to fibrin hydrogels. Collectively, the results indicate that the albumin-enriched fibrin hydrogel is a promising bio-matrix for bone tissue engineering and orthopaedic applications.
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Affiliation(s)
- Galit Katarivas Levy
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK.
| | - John Ong
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK.
| | - Mark A Birch
- Division of Trauma and Orthopaedic Surgery, Addenbrooke's Hospital, Hills Road, Cambridge CB2 2QQ, UK.
| | - Alexander W Justin
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK.
| | - Athina E Markaki
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK.
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22
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Sun M, Feng W, Wang B, Han B, Zou J, Yang C, Liu Z. Studies on Surface Properties and Cell Adhesion Properties of BSA Modified DBM Scaffold. Chem Res Chin Univ 2019. [DOI: 10.1007/s40242-019-9020-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Horváthy DB, Schandl K, Schwarz CM, Renner K, Hornyák I, Szabó BT, Niculescu-Morzsa E, Nehrer S, Dobó-Nagy C, Doros A, Lacza Z. Serum albumin-coated bone allograft (BoneAlbumin) results in faster bone formation and mechanically stronger bone in aging rats. J Tissue Eng Regen Med 2019; 13:416-422. [PMID: 30747474 PMCID: PMC6593663 DOI: 10.1002/term.2803] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 11/05/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022]
Abstract
Serum albumin-coated bone allografts (BoneAlbumin) have successfully supported bone regeneration in various experimental models by activating endogenous progenitors. However, the effect of tissue aging, linked to declining stem cell function, has yet to be explicitly examined within the context of BoneAlbumin's regenerative capacity. Stem cell function was tested with an in vitro attachment assay, which showed that albumin coating increases stem cell attachment on demineralized bone surfaces in an aging cell population. Bone regeneration was investigated in vivo by creating critical size bone defects on the parietal bones of aging female rats. Demineralized bone matrices with and without serum albumin coating were used to fill the defects. Bone regeneration was determined by measuring the density and the size of the remaining bone defect with computed tomography (CT). Microcomputed tomography (MicroCT) and mechanical testing were performed on the parietal bone explants. In vivo CT and ex vivo microCT measurements showed better regeneration with albumin-coated grafts. Additionally, the albumin-coated group showed a twofold increase in peak fracture force compared with uncoated allografts. In the present study, serum albumin-coated demineralized bone matrices successfully supported faster and functionally superior bone regeneration in aging rats. Because stem cell function, a key contributor of bone remodelling, decreases with age and serum albumin is an effective activator of endogenous progenitor cells, this method could be an effective and safe adjuvant in bone regeneration of aging adult and osteo-compromised populations.
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Affiliation(s)
- Dénes B Horváthy
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary.,Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary
| | - Károly Schandl
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Charlotte M Schwarz
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Károly Renner
- Department of Physical Chemistry and Material Science, Budapest University of Technology and Economics, Budapest, Hungary
| | - István Hornyák
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Bence T Szabó
- Department of Oral Diagnostics, Semmelweis University, Budapest, Hungary
| | - Eugenia Niculescu-Morzsa
- Center for Regenerative Medicine and Orthopedics, Department for Health Sciences and Biomedicine, Danube University Krems, Krems an der Donau, Austria
| | - Stefan Nehrer
- Center for Regenerative Medicine and Orthopedics, Department for Health Sciences and Biomedicine, Danube University Krems, Krems an der Donau, Austria
| | - Csaba Dobó-Nagy
- Department of Oral Diagnostics, Semmelweis University, Budapest, Hungary
| | - Attila Doros
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary
| | - Zsombor Lacza
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary.,Research Center for Sport Physiology, University of Physical Education, Budapest, Hungary
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24
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Kunutsor SK, Voutilainen A, Whitehouse MR, Seidu S, Kauhanen J, Blom AW, Laukkanen JA. Serum Albumin and Future Risk of Hip, Humeral, and Wrist Fractures in Caucasian Men: New Findings from a Prospective Cohort Study. Med Princ Pract 2019; 28:401-409. [PMID: 30893707 PMCID: PMC6771052 DOI: 10.1159/000499738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 03/20/2019] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Low serum albumin concentration is associated with poor health outcomes, but its relationship with the risk of fractures has not been reliably quantified. We aimed to assess the prospective association of serum albumin with the risk of fractures in a general population. SUBJECTS AND METHODS Baseline serum albumin concentrations were measured in 2,245 men aged 42-61 years in the Kuopio Is-chemic Heart Disease study. Hazard ratios (HRs) (95% confidence intervals) were calculated for incident fractures. RESULTS A total of 121 fractures (hip, humeral, or wrist) were recorded during a median follow-up of 25.6 years. The risk of fractures increased linearly below a serum albumin concentration of ∼48 g/L. The age-adjusted HR (95% CI) for fractures per 1 standard deviation lower serum albumin was 1.24 (1.05-1.48). On further adjustment for several conventional and emerging risk factors, the HR was attenuated to 1.21 (1.01-1.45). Comparing the bottom versus top quartile of serum albumin levels, the corresponding adjusted HRs were 2.48 (1.37-4.48) and 2.26 (1.23-4.14). The association of serum albumin with fracture risk did not differ substantially according to age, body mass index, blood pressure, physical activity, alcohol consumption, socioeconomic status, inflammation, prevalent diseases, and smoking. Serum albumin at a threshold of 41.5 g/L demonstrated an area under the curve of 0.5850. CONCLUSION In middle-aged Caucasian men, low serum albumin is associated with an increased risk of future fractures. The potential relevance of serum albumin concentrations in fracture prevention and prediction deserves further evaluation.
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Affiliation(s)
- Setor K Kunutsor
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom,
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building (Level 1), Southmead Hospital, Bristol, United Kingdom,
| | - Ari Voutilainen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Michael R Whitehouse
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building (Level 1), Southmead Hospital, Bristol, United Kingdom
| | - Samuel Seidu
- Leicester Diabetes Centre, Leicester General Hospital, Leicester, United Kingdom
- Diabetes Research Centre, University of Leicester, Leicester General Hospital, Leicester, United Kingdom
| | - Jussi Kauhanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Ashley W Blom
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building (Level 1), Southmead Hospital, Bristol, United Kingdom
| | - Jari A Laukkanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
- Central Finland Health Care District, Jyväskylä, Finland
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Tao C, Chuah YJ, Xu C, Wang DA. Albumin conjugates and assemblies as versatile bio-functional additives and carriers for biomedical applications. J Mater Chem B 2018; 7:357-367. [PMID: 32254722 DOI: 10.1039/c8tb02477d] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
As the most abundant plasma protein, serum albumin has been extensively studied and employed for therapeutic applications. Despite its direct clinical use for the maintenance of blood homeostasis in various medical conditions, this review exclusively summarizes and discusses albumin-based bio-conjugates and assemblies as versatile bio-functional additives and carriers in biomedical applications. As one of the smallest-sized proteins in the human body, albumin is physiochemically stable and biochemically inert. Moreover, albumin is also endowed with abundant specific binding sites for numerous therapeutic compounds, which also endow it with superior bioactivities. Firstly, due to its small size and binding specificity, albumin alone or its derived assemblies can be utilized as competent drug carriers, which can deliver drugs through the enhanced permeability and retention (EPR) effect or actively target lesion sites through binding with gp60 and secreted protein acidic and rich in cysteine (SPARC) in tumor sites. Furthermore, its biochemical stability and inertness make it a safe and biocompatible coating material for use in biomedical applications. Albumin-based surface modifying additives can be used to functionalize both macro substrates (e.g. surfaces of medical devices or implants) and nanoparticle surfaces (e.g. drug carriers and imaging contrast agents). In this review, we elaborate on the synthesis and applications of albumin-based bio-functional coatings and drug carriers, respectively.
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Affiliation(s)
- Chao Tao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore, Singapore.
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26
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Biological and Mechanical Properties of Platelet-Rich Fibrin Membranes after Thermal Manipulation and Preparation in a Single-Syringe Closed System. Int J Mol Sci 2018; 19:ijms19113433. [PMID: 30388866 PMCID: PMC6274993 DOI: 10.3390/ijms19113433] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/24/2018] [Accepted: 10/29/2018] [Indexed: 12/12/2022] Open
Abstract
Platelet-rich fibrin (PRF) membrane is a three-dimensional biodegradable biopolymer, which consists of platelet derived growth factors enhancing cell adhesion and proliferation. It is widely used in soft and hard tissue regeneration, however, there are unresolved problems with its clinical application. Its preparation needs open handling of the membranes, it degrades easily, and it has a low tensile strength which does not hold a suture blocking wider clinical applications of PRF. Our aim was to produce a sterile, suturable, reproducible PRF membrane suitable for surgical intervention. We compared the biological and mechanical properties of PRF membranes created by the classical glass-tube and those that were created in a single-syringe closed system (hypACT Inject), which allowed aseptic preparation. HypACT Inject device produces a PRF membrane with better handling characteristics without compromising biological properties. Freeze-thawing resulted in significantly higher tensile strength and higher cell adhesion at a lower degradation rate of the membranes. Mesenchymal stem cells seeded onto PRF membranes readily proliferated on the surface of fresh, but even better on freeze/thawed or freeze-dried membranes. These data show that PRF membranes can be made sterile, more uniform and significantly stronger which makes it possible to use them as suturable surgical membranes.
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27
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Vácz G, Major B, Gaál D, Petrik L, Horváthy DB, Han W, Holczer T, Simon M, Muir JM, Hornyák I, Lacza Z. Hyperacute serum has markedly better regenerative efficacy than platelet-rich plasma in a human bone oxygen-glucose deprivation model. Regen Med 2018; 13:531-543. [PMID: 30132395 DOI: 10.2217/rme-2017-0141] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
AIM Platelet-rich plasma (PRP) and hyperacute serum (HAS) were compared in a novel human model of ex vivo bone damage induced by oxygen-glucose deprivation (OGD). MATERIALS & METHODS Osteoarthritic subchondral bone pieces were harvested from discarded femoral heads during hip replacement surgery and subjected to transient OGD. RESULTS Proteome profiling revealed that PRP is more angiopoietic, whereas HAS is more antiangiopoietic in composition. However, treatment of OGD-exposed bone with multiple PRP preparations had no effect on cell counts, whereas HAS restored cell proliferation capacity and rescued viable cell number following OGD. CONCLUSION A similar pro-proliferation effect was observed with recombinant growth factors, indicating that HAS may be an alternative agent for enhancing the regeneration of damaged bone cells.
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Affiliation(s)
- Gabriella Vácz
- Institute of Clinical Experimental Research, Semmelweis University, Tűzoltó u. 37-47, Budapest, Hungary, 1094
| | - Bálint Major
- Polyclinic of the Hospitaller Brothers of St. John of God in Budapest, Orthopaedic Department, Frankel Leo u. 54., Budapest, Hungary, 1023
| | - Dorottya Gaál
- Institute of Clinical Experimental Research, Semmelweis University, Tűzoltó u. 37-47, Budapest, Hungary, 1094
| | - Laura Petrik
- Institute of Clinical Experimental Research, Semmelweis University, Tűzoltó u. 37-47, Budapest, Hungary, 1094
| | - Dénes Balázs Horváthy
- Institute of Clinical Experimental Research, Semmelweis University, Tűzoltó u. 37-47, Budapest, Hungary, 1094
| | - Weiping Han
- Bioimaging Consortium, A-STAR, Singapore, Helios, Biopolis Way 11
| | - Tünde Holczer
- Department of Laboratory Medicine, Semmelweis University, Nagyvárad t. 4, Budapest, Hungary, 1089
| | - Melinda Simon
- Institute of Clinical Experimental Research, Semmelweis University, Tűzoltó u. 37-47, Budapest, Hungary, 1094
| | - Jeffrey M Muir
- Motion Research, 3-35 Stone Church Rd, Suite 215, Ancaster, Ontario, L9K 3S9 Canada
| | - István Hornyák
- OrthoSera GmbH, Dr. Karl-Dorrek-Straße 23-29, 3500 Krems an der Donau, Austria
| | - Zsombor Lacza
- OrthoSera GmbH, Dr. Karl-Dorrek-Straße 23-29, 3500 Krems an der Donau, Austria.,University of Physical Education, Alkotás u. 44, Budapest, Hungary 1123
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28
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Bennett PM, Stewart SK, Dretzke J, Bem D, Penn-Barwell JG. Preclinical therapies to prevent or treat fracture non-union: A systematic review. PLoS One 2018; 13:e0201077. [PMID: 30067783 PMCID: PMC6070249 DOI: 10.1371/journal.pone.0201077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/08/2018] [Indexed: 12/22/2022] Open
Abstract
Background Non-union affects up to 10% of fractures and is associated with substantial morbidity. There is currently no single effective therapy for the treatment or prevention of non-union. Potential treatments are currently selected for clinical trials based on results from limited animal studies, with no attempt to compare results between therapies to determine which have the greatest potential to treat non-union. Aim The aim of this systematic review was to define the range of therapies under investigation at the preclinical stage for the prevention or treatment of fracture non-union. Additionally, through meta-analysis, it aimed to identify the most promising therapies for progression to clinical investigation. Methods MEDLINE and Embase were searched from 1St January 2004 to 10th April 2017 for controlled trials evaluating an intervention to prevent or treat fracture non-union. Data regarding the model used, study intervention and outcome measures were extracted, and risk of bias assessed. Results Of 5,171 records identified, 197 papers describing 204 therapies were included. Of these, the majority were only evaluated once (179/204, 88%), with chitosan tested most commonly (6/204, 3%). Substantial variation existed in model design, length of survival and duration of treatment, with results poorly reported. These factors, as well as a lack of consistently used objective outcome measures, precluded meta-analysis. Conclusion This review highlights the variability and poor methodological reporting of current non-union research. The authors call for a consensus on the standardisation of animal models investigating non-union, and suggest journals apply stringent criteria when considering animal work for publication.
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Affiliation(s)
- Philippa M. Bennett
- Institute of Naval Medicine, Crescent Road, Alverstoke, Hampshire, United Kingdom
- * E-mail:
| | - Sarah K. Stewart
- Royal Centre for Defence Medicine, Queen Elizabeth Hospital, Edgbaston, Birmingham, United Kingdom
| | - Janine Dretzke
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Danai Bem
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
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29
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Márton K, Tamás SB, Orsolya N, Béla C, Ferenc D, Péter N, Csaba DN, Lajos C, Zsombor L, Eitan M, György S. Microarchitecture of the Augmented Bone Following Sinus Elevation with an Albumin Impregnated Demineralized Freeze-Dried Bone Allograft (BoneAlbumin) versus Anorganic Bovine Bone Mineral: A Randomized Prospective Clinical, Histomorphometric, and Micro-Computed Tomography Study. MATERIALS 2018; 11:ma11020202. [PMID: 29382095 PMCID: PMC5848899 DOI: 10.3390/ma11020202] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/23/2018] [Accepted: 01/24/2018] [Indexed: 12/15/2022]
Abstract
Serum albumin has been identified as an endogenous protein that is integral to early bone regeneration. We hypothesized that albumin addition to allografts may result in better bone remodeling than what can be achieved with anorganic xenografts. Sinus elevations were performed at 32 sites of 18 patients with the lateral window technique. Sites either received filling with an anorganic bovine bone mineral (ABBM, BioOss, Geistlich, CH) or albumin impregnated allograft (BoneAlbumin, OrthoSera, AT). After 6-months patients received dental implants and 16 bone core biopsy samples were obtained from the ABBM filled, and 16 from the BoneAlbumin augmented sites. The biopsies were examined by histomorphometry and µCT. Percentage of the residual graft in the BoneAlbumin group was 0–12.7%, median 5.4% vs. ABBM 6.3–35.9%, median 16.9%, p < 0.05. Results of the µCT analysis showed that the microarchitecture of the augmented bone in the BoneAlbumin group resembles that of the native maxilla in morphometric parameters Trabecular Pattern Factor and Connectivity. Our data show that while ABBM successfully integrates into the newly formed bone tissue as persisting particles, BoneAlbumin is underway towards complete remodeling with new bone closely resembling that of the intact maxilla.
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Affiliation(s)
- Kivovics Márton
- Department of Community Dentistry, Semmelweis University, Szentkirályi utca 40, 1088 Budapest, Hungary; (N.O.); (C.B.)
- Correspondence: ; Tel.: +36-20-360-1909
| | - Szabó Bence Tamás
- Department of Oral Diagnostics, Semmelweis University, Szentkirályi utca 47, 1088 Budapest, Hungary; (S.B.T.); (D.-N.C.)
| | - Németh Orsolya
- Department of Community Dentistry, Semmelweis University, Szentkirályi utca 40, 1088 Budapest, Hungary; (N.O.); (C.B.)
| | - Czinkóczky Béla
- Department of Community Dentistry, Semmelweis University, Szentkirályi utca 40, 1088 Budapest, Hungary; (N.O.); (C.B.)
| | - Dőri Ferenc
- Department of Periodontology, Semmelweis University, Szentkirályi utca 47, 1088 Budapest, Hungary;
| | - Nagy Péter
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, 1085 Budapest, Hungary;
| | - Dobó-Nagy Csaba
- Department of Oral Diagnostics, Semmelweis University, Szentkirályi utca 47, 1088 Budapest, Hungary; (S.B.T.); (D.-N.C.)
| | - Csönge Lajos
- Petz Aladár County Hospital, West Hungarian Regional Tissue Bank, Vasvári Pál u. 2–4, 9024 Győr, Hungary;
| | - Lacza Zsombor
- Institute of Clinical Experimental Research, Semmelweis University, Tűzoltó u. 37–47, 1094 Budapest, Hungary;
| | - Mijiritsky Eitan
- Department of Oral Rehabilitation, Tel Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel;
| | - Szabó György
- Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, Mária utca 52, 1085 Budapest, Hungary;
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30
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Horváthy DB, Simon M, Schwarz CM, Masteling M, Vácz G, Hornyák I, Lacza Z. Serum albumin as a local therapeutic agent in cell therapy and tissue engineering. Biofactors 2017; 43:315-330. [PMID: 27859738 DOI: 10.1002/biof.1337] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/05/2016] [Accepted: 10/03/2016] [Indexed: 12/15/2022]
Abstract
Albumin is a major plasma protein that has become ubiquitous in regenerative medicine research. As such, many studies have examined its structure and advantageous properties. However, a systematic and comprehensive understanding of albumin's role, capabilities and therapeutic potential still eludes the field. In the present work, we review how albumin is applied in tissue engineering, including cell culture and storage, in vitro fertilization and transplantation. Furthermore, we discuss how albumin's physiological role extends beyond a carrier for metal ions, fatty acids, pharmacons and growth factors. Albumin acts as a bacteriostatic coating that simultaneously promotes attachment and proliferation of eukaryotic cells. These properties with the combination of free radical scavenging, neutrophil activation and as a buffer molecule already make the albumin protein beneficial in healing processes supporting functional tissue remodeling. Nevertheless, recent data revealed that albumin can be synthesized by osteoblasts and its local concentration is raised after bone trauma. Interestingly, by increasing the local albumin concentration in vivo, faster bone healing is achieved, possibly because albumin recruits endogenous stem cells and promotes the growth of new bone. These data also suggest an active role of albumin, even though a specific receptor has not yet been identified. Together, this discussion sheds light on why the extravascular use of the albumin molecule is in the scope of scientific investigations and why it should be considered as a local therapeutic agent in regenerative medicine. © 2016 BioFactors, 43(3):315-330, 2017.
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Affiliation(s)
- Dénes B Horváthy
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Melinda Simon
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Charlotte M Schwarz
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Mariana Masteling
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Gabriella Vácz
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - István Hornyák
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
| | - Zsombor Lacza
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Hungary
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31
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Lee JS, Kim K, Park JP, Cho SW, Lee H. Role of Pyridoxal 5'-Phosphate at the Titanium Implant Interface In Vivo: Increased Hemophilicity, Inactive Platelet Adhesion, and Osteointegration. Adv Healthc Mater 2017; 6. [PMID: 28081293 DOI: 10.1002/adhm.201600962] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/16/2016] [Indexed: 11/08/2022]
Abstract
Titanium is the most biocompatible inorganic biomaterial with a long history of use in orthopedic and dental implants. However, promoting rapid and effective bone formation and integration onto etched, rough TiO2 surfaces has been a challenging topic. Here, 21 commercially available molecules are examined that met the following criteria: (1) contain phosphonic acid for stable immobilization onto TiO2 surfaces and (2) have a molecular weight less than 500 Da for negligible coating thickness. Of these molecules, the surface immobilization of pyridoxal 5'-phosphate (PLP), an active form of vitamin B6 , dramatically increases the hemophilic property of the surface and accelerated osteointegration in vivo. Analysis shows that PLP promotes surface binding of serum albumin and other plasma proteins by Schiff-base formations via its aldehyde group, providing a platform suitable for osteoblast adhesion. PLP also retards blood coagulation more than the widely used citric acid at the TiO2 surface. As PLP is capable of maintaining an inactivated status of surface-adsorbed platelets, delayed coagulation at the implant-blood interface allows for sufficient supply of growth factors from blood plasma and migration of osteoblasts. The results suggest that PLP can be widely applicable as a biocompatible, effective coating compound to promote osteointegration of titanium-based implants.
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Affiliation(s)
- Jung Seung Lee
- Department of Biotechnology; Yonsei University; 50 Yonsei-ro Seodaemun-gu Seoul 120-749 Republic of Korea
| | - Kyuri Kim
- The Graduate School of Nanoscience and Technology Korea Advanced Institute of Science and Technology (KAIST); 291 University Rd Daejeon 305-701 Republic of Korea
| | - Joseph P. Park
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); 291 University Rd Daejeon 305-701 Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology; Yonsei University; 50 Yonsei-ro Seodaemun-gu Seoul 120-749 Republic of Korea
| | - Haeshin Lee
- The Graduate School of Nanoscience and Technology Korea Advanced Institute of Science and Technology (KAIST); 291 University Rd Daejeon 305-701 Republic of Korea
- Department of Chemistry; Korea Advanced Institute of Science and Technology (KAIST); 291 University Rd Daejeon 305-701 Republic of Korea
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32
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Schandl K, Horváthy DB, Doros A, Majzik E, Schwarz CM, Csönge L, Abkarovits G, Bucsi L, Lacza Z. Bone-Albumin filling decreases donor site morbidity and enhances bone formation after anterior cruciate ligament reconstruction with bone-patellar tendon-bone autografts. INTERNATIONAL ORTHOPAEDICS 2016; 40:2097-2104. [PMID: 27357530 DOI: 10.1007/s00264-016-3246-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/17/2016] [Indexed: 01/28/2023]
Abstract
PURPOSE Donor site pain affects 32-43 % of patients after anterior cruciate ligament surgery when the autograft is freshly harvested bone-patellar tendon-bone tissue. Our aim was to compare functional and morphological differences between donor sites with and without serum albumin-coated bone allograft filling. METHODS After harvesting and implanting the graft, the tibia site was filled with either fresh autologous cancellous bone enhanced with albumin-coated allograft or autologous bone alone. The patella site was filled either with albumin-coated allograft or with blood clot. Knee function was evaluated by the VISA, Lysholm and IKDC scores and a visual analog scale of pain during standing, kneeling and crouching after six weeks and six months. Computed tomography was performed at six months for morphological evaluation. RESULTS At six weeks, both groups were still recovering from surgery and the overall knee function was still impaired but the functional scores were significantly higher in the Bone-Albumin group. The pain with crouching and kneeling was also lower as compared to controls. At six months, the knee function scores were close to normal, with a slight decrease in the controls. Pain at kneeling was still prominent in the controls, but significantly lower in the Bone-Albumin group. Computed tomography showed significantly smaller bone defects and higher bone density in the Bone-Albumin group. CONCLUSIONS Results from the present study indicate that donor site pain, a disturbing long-term side effect of bone-patellar tendon-bone surgery, is significantly reduced if bone buildup in the patella and the tibia is augmented by serum albumin-coated bone allografts.
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Affiliation(s)
- Károly Schandl
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Tűzoltó u. 37-47, 1094, Hungary.,Saint George University Teaching Hospital of County-Fejér, Székesfehérvár, Seregélyesi u. 3., 8000, Hungary
| | - Dénes B Horváthy
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Tűzoltó u. 37-47, 1094, Hungary
| | - Attila Doros
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Baross u. 23-26, 1082, Hungary
| | - Ernő Majzik
- Saint George University Teaching Hospital of County-Fejér, Székesfehérvár, Seregélyesi u. 3., 8000, Hungary
| | - Charlotte M Schwarz
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Tűzoltó u. 37-47, 1094, Hungary
| | - Lajos Csönge
- West Hungarian Regional Tissue Bank, Petz Aladár County Hospital, Győr, Vasvári Pál u. 2-4, 9024, Hungary
| | - Géza Abkarovits
- Saint George University Teaching Hospital of County-Fejér, Székesfehérvár, Seregélyesi u. 3., 8000, Hungary
| | - László Bucsi
- Saint George University Teaching Hospital of County-Fejér, Székesfehérvár, Seregélyesi u. 3., 8000, Hungary
| | - Zsombor Lacza
- Institute of Clinical Experimental Research, Semmelweis University, Budapest, Tűzoltó u. 37-47, 1094, Hungary.
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