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Mughal A, Gillani SMH, Ahmed S, Fatima D, Hussain R, Manzur J, Nawaz MH, Minhas B, Shoaib Butt M, Bodaghi M, Ur Rehman MA. 3D-printed polyether-ether ketone/carboxymethyl cellulose scaffolds coated with Zn-Mn doped mesoporous bioactive glass nanoparticles. J Mech Behav Biomed Mater 2024; 156:106581. [PMID: 38776740 DOI: 10.1016/j.jmbbm.2024.106581] [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: 03/20/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
Patient-specific fabrication of scaffold/implant requires an engineering approach to manufacture the ideal scaffold. Herein, we design and 3D print scaffolds comprised of polyether-ether-ketone (PEEK) and sodium-carboxymethyl cellulose (Na-CMC). The fabricated scaffold was dip coated with Zn and Mn doped bioactive glass nanoparticles (Zn-Mn MBGNs). The synthesized ink exhibit suitable shear-thinning behavior for direct ink write (DIW) 3D printing. The scaffolds were crafted with precision, featuring 85% porosity, 0.3 mm layer height, and 1.5 mm/s printing speed at room temperature. Scanning electron microscopy images reveal a well-defined scaffold with an average pore size of 600 ± 30 μm. The energy dispersive X-ray spectroscopy analysis confirmed a well dispersed/uniform coating of Zn-Mn MBGNs on the PEEK/Na-CMC scaffold. Fourier transform infrared spectroscopy approved the presence of PEEK, CMC, and Zn-Mn MBGNs. The tensile test revealed a Young's modulus of 2.05 GPa. Antibacterial assays demonstrate inhibition zone against Staphylococcus aureus and Escherichia Coli strains. Chick Chorioallantoic Membrane assays also present significant angiogenesis potential, owing to the antigenic nature of Zn-Mn MBGNs. WST-8 cell viability assays depicted cell proliferation, with a 103% viability after 7 days of culture. This study suggests that the PEEK/Na-CMC scaffolds coated with Zn-Mn MBGNs are an excellent candidate for osteoporotic fracture treatment. Thus, the fabricated scaffold can offer multifaceted properties for enhanced patient outcomes in the bone tissue regeneration.
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Affiliation(s)
- Awab Mughal
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan; Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Syed Muneeb Haider Gillani
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan; Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Sheraz Ahmed
- Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Duaa Fatima
- Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan; School of Chemical and Material Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad, 44000, Pakistan
| | - Rabia Hussain
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan
| | - Jawad Manzur
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan
| | - Muhammad Haseeb Nawaz
- Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan
| | - Badar Minhas
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan
| | - Muhammad Shoaib Butt
- School of Chemical and Material Engineering (SCME), National University of Sciences and Technology (NUST), H-12, Islamabad, 44000, Pakistan
| | - Mahdi Bodaghi
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK.
| | - Muhammad Atiq Ur Rehman
- Centre of Excellence in Biomaterials and Tissue Engineering, Materials Science Engineering Department, Government College University, 54000, Lahore, Pakistan; Department of Materials Science & Engineering, Institute of Space Technology, 44000, Islamabad, Pakistan.
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Jia B, Xue R, Li J, Xu G, Li X, Wang W, Li Z, Liu J. Molecular mechanisms of EGCG-CSH/n-HA/CMC in promoting osteogenic differentiation and macrophage polarization. Bioorg Chem 2024; 150:107493. [PMID: 38870703 DOI: 10.1016/j.bioorg.2024.107493] [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: 04/18/2024] [Accepted: 05/22/2024] [Indexed: 06/15/2024]
Abstract
2. This research investigates the impact of the EGCG-CSH/n-HA/CMC composite material on bone defect repair, emphasizing its influence on macrophage polarization and osteogenic differentiation of BMSCs. Comprehensive evaluations of the composite's physical and chemical characteristics were performed. BMSC response to the material was tested in vitro for proliferation, migration, and osteogenic potential. An SD rat model was employed for in vivo assessments of bone repair efficacy. Both transcriptional and proteomic analyses were utilized to delineate the mechanisms influencing macrophage behavior and stem cell differentiation. The material maintained excellent structural integrity and significantly promoted BMSC functions critical to bone healing. In vivo results confirmed accelerated bone repair, and molecular analysis highlighted the role of macrophage M2 polarization, particularly through changes in the SIRPA gene and protein expression. EGCG-CSH/n-HA/CMC plays a significant role in enhancing bone repair, with implications for macrophage and BMSC function. Our findings suggest that targeting SIRPA may offer new therapeutic opportunities for bone regeneration.
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Affiliation(s)
- Bei Jia
- Nosocomial Infection Management Department, Hebei Medical University First Hospital, Shijiazhuang 050000, China
| | - Rui Xue
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China
| | - Jia Li
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China
| | - Guohui Xu
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China
| | - Xu Li
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China
| | - Wei Wang
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China
| | - Zhiyong Li
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China
| | - Jianning Liu
- Department of Orthopaedic Surgery, Hebei Medical University Third Hospital, Shijiazhuang 050051, China.
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Ege D, Kamali AR. XGB Modeling Reveals Improvement of Compressive Strength of Cement-Based Composites with Addition of HPMC and Chitosan. MATERIALS (BASEL, SWITZERLAND) 2024; 17:374. [PMID: 38255542 PMCID: PMC10820120 DOI: 10.3390/ma17020374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Abstract
This study investigates the improvement in the compressive strength of cellulose/cement-based composites. Methyl cellulose (MC), carboxymethyl cellulose (CMC), and hydroxypropyl cellulose (HPMC) are separately used as the cellulose phase with different wt%. Graphene oxide (GO) and zoledronic acid (ZOL) are used as additives for bone regeneration for various formulations. Utilizing Extreme Gradient Boosting (XGB) modeling, this research demonstrates the roles of the choice of the cellulose phase, wt% of cement phase, % gelatin, % citric acid, degradation time, and concentration of GO and ZOL in influencing compressive strength. The XGB regression model, with an R2 value of 0.99 (~1), shows the predictive power of the model. Feature importance analysis demonstrates the significance of cellulose choice and the addition of chitosan in enhancing compressive strength. The correlation heatmap reveals positive associations, emphasizing the positive influence of HPMC and CMC compared with MC and the substantial impact of chitosan and citric acid on compressive strength. The model's predictive accuracy is validated through predicted compressive strength values with experimental observations, providing insights for optimizing cellulose-reinforced cements and enabling tailored material design for enhanced mechanical performance.
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Affiliation(s)
- Duygu Ege
- Institute of Biomedical Engineering, Boğaziçi University, Rasathane Cd, Kandilli Campus, Kandilli Mah., Istanbul 34684, Turkey
| | - Ali Reza Kamali
- Energy and Environmental Materials Research Centre (E2MC), School of Metallurgy, Northeastern University, Shenyang 110819, China;
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Öztürk K, Kuzu TE, Ayrıkçil S, Gürgan CA, Önder GÖ, Yay A. Effect of systemic atorvastatin on bone regeneration in critical-sized defects in hyperlipidemia: an experimental study. Int J Implant Dent 2023; 9:50. [PMID: 38097856 PMCID: PMC10721777 DOI: 10.1186/s40729-023-00508-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 10/18/2023] [Indexed: 12/17/2023] Open
Abstract
PURPOSE Hypocholesterolemic medications similar to atorvastatin are efficient in lowering blood lipid levels; however, compared to other medications in the statin family, their impact on bone metabolism is claimed to be insufficient. The impact of atorvastatin on bone regeneration in dental implantology in individuals with hyperlipidemia who received atorvastatin in the clinic is doubtful. METHODS In the study, 16 male New Zealand rabbits of 6 months were used. All rabbits were fed a high-cholesterol diet for 8 weeks, and hyperlipidemia was created. It was confirmed that the total cholesterol level in rabbits was above 105 mg/dl. A critical-sized defect was created in the mandible. The defect was closed with xenograft and membrane. Oral 10 mg/kg atorvastatin was started in the experimental group, and no drug was administered in the control group. At 16th week, animals were sacrificed. For histomorphological examination, the new bone area, osteoclast, and osteoblast activities were evaluated. RESULTS While new bone area (45,924 µm2, p < 0.001) and AP intensities (105.645 ± 16.727, p = 0.006) were higher in the atorvastatin group than in the control group, TRAP intensities in the control group (82.192 ± 5.346, p = 0.021) were higher than that in the atorvastatin group. CONCLUSIONS It has been found that high blood lipid levels will adversely affect bone graft healing and the use of systemic atorvastatin contributes to bone healing. Clinicians should pay attention to the selection of surgical materials, considering the importance of questioning drug use in their patients and the risks in cases of non-use.
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Affiliation(s)
- Kübra Öztürk
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Türkiye.
| | - Turan Emre Kuzu
- Department of Periodontology, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Türkiye
| | - Semih Ayrıkçil
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Türkiye
| | - Cem Abdulkadir Gürgan
- Department of Periodontology, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Türkiye
| | - Gözde Özge Önder
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Türkiye
| | - Arzu Yay
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Türkiye
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Liu J, Wang Y, Liang Y, Zhu S, Jiang H, Wu S, Ge X, Li Z. Effect of Platelet-Rich Plasma Addition on the Chemical Properties and Biological Activity of Calcium Sulfate Hemihydrate Bone Cement. Biomimetics (Basel) 2023; 8:262. [PMID: 37366857 DOI: 10.3390/biomimetics8020262] [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: 04/27/2023] [Revised: 06/04/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
Currently, platelet-rich plasma (PRP) is an attractive additive for bone repair materials. PRP could enhance the osteoconductive and osteoinductive of bone cement, as well as modulate the degradation rate of calcium sulfate hemihydrate (CSH). The focus of this study was to investigate the effect of different PRP ratios (P1: 20 vol%, P2: 40 vol%, and P3: 60 vol%) on the chemical properties and biological activity of bone cement. The injectability and compressive strength of the experimental group were significantly higher than those of the control. On the other hand, the addition of PRP decreased the crystal size of CSH and prolonged the degradation time. More importantly, the cell proliferation of L929 and MC3T3-E1 cells was promoted. Furthermore, qRT-PCR, alizarin red staining, and western blot analyses showed that the expressions of osteocalcin (OCN) and Runt-related transcription factor 2 (Runx2) genes and β-catenin protein were up-regulated, and mineralization of extracellular matrix was enhanced. Overall, this study provided insight into how to improve the biological activity of bone cement through PRP incorporation.
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Affiliation(s)
- Jingyu Liu
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
| | - Yifan Wang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
| | - Yanqin Liang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
| | - Shengli Zhu
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
| | - Hui Jiang
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
| | - Shuilin Wu
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
| | - Xiang Ge
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin 300354, China
| | - Zhaoyang Li
- Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Yaguan Road 135#, Tianjin 300072, China
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Rahman MS, Hasan MS, Nitai AS, Nam S, Karmakar AK, Ahsan MS, Shiddiky MJA, Ahmed MB. Recent Developments of Carboxymethyl Cellulose. Polymers (Basel) 2021; 13:1345. [PMID: 33924089 PMCID: PMC8074295 DOI: 10.3390/polym13081345] [Citation(s) in RCA: 148] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 12/22/2022] Open
Abstract
Carboxymethyl cellulose (CMC) is one of the most promising cellulose derivatives. Due to its characteristic surface properties, mechanical strength, tunable hydrophilicity, viscous properties, availability and abundance of raw materials, low-cost synthesis process, and likewise many contrasting aspects, it is now widely used in various advanced application fields, for example, food, paper, textile, and pharmaceutical industries, biomedical engineering, wastewater treatment, energy production, and storage energy production, and storage and so on. Many research articles have been reported on CMC, depending on their sources and application fields. Thus, a comprehensive and well-organized review is in great demand that can provide an up-to-date and in-depth review on CMC. Herein, this review aims to provide compact information of the synthesis to the advanced applications of this material in various fields. Finally, this article covers the insights of future CMC research that could guide researchers working in this prominent field.
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Affiliation(s)
- Md. Saifur Rahman
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Md. Saif Hasan
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Ashis Sutradhar Nitai
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Sunghyun Nam
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Boulevard, New Orleans, LA 70124, USA;
| | - Aneek Krishna Karmakar
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Md. Shameem Ahsan
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Muhammad J. A. Shiddiky
- School of Environment and Science (ESC) and Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan 4111, Australia;
| | - Mohammad Boshir Ahmed
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
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Gkouveris I, Hadaya D, Soundia A, Bezouglaia O, Chau Y, Dry SM, Pirih FQ, Aghaloo TL, Tetradis S. Vasculature submucosal changes at early stages of osteonecrosis of the jaw (ONJ). Bone 2019; 123:234-245. [PMID: 30953717 PMCID: PMC6763394 DOI: 10.1016/j.bone.2019.03.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 03/16/2019] [Accepted: 03/22/2019] [Indexed: 02/09/2023]
Abstract
Osteonecrosis of the jaw (ONJ), a rare, but potentially severe side effect of anti-resorptive medications, presents as exposed bone in the maxillofacial region lasting for at least 8 weeks. While clinical experience and animal models concur in finding that systemic antiresorptive treatment in conjunction with local risk factors, such as tooth extraction or dental disease may lead to ONJ development, the subclinical molecular changes that precede bone exposure remain poorly understood. The identification of these changes is not only important in understanding disease pathophysiology, but could provide potential for treatment development. Here, we evaluated the early stages of ONJ utilizing a model of experimental periodontitis (EP) in mice treated with two different types of antiresorptives, targeting potential changes in vasculature, hypoxia, oxidative stress, and apoptosis. Antiresorptive treatment in animals with EP increased levels of empty osteocytic lacunae and increased ONJ prevalence compared to Veh animals. The arteriole and venule network seen around EP areas was diminished in animals treated with antiresorptives. Higher levels of vascular endothelial growth factor A (VEGF-A) and vascular cell adhesion protein-1 (VCAM-1) were observed 1-week following EP in treated animals. Finally, levels of hypoxia, oxidative stress, and apoptosis remained high in antiresorptive treated animals with EP through the duration of the experiment. Together, our data point to subclinical vasculature organizational disturbances that subsequently affect levels of hypoxia, oxidative stress, and apoptosis in the area of developing ONJ.
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Affiliation(s)
- Ioannis Gkouveris
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Danny Hadaya
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Akrivoula Soundia
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Olga Bezouglaia
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Yee Chau
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Sarah M Dry
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Flavia Q Pirih
- Division of Constitutive and Regenerative Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Tara L Aghaloo
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA.
| | - Sotirios Tetradis
- Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA 90095, USA.
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Hai J, Tan X, Yang S, Chen F, Li T, Yang X, Zhu Y, Wang B. Facile preparation of a Ca(ii) carboxymethyl cellulose complex with enhanced calcium bioavailability for treatment of osteoporosis. Dalton Trans 2019; 48:5735-5740. [PMID: 30972392 DOI: 10.1039/c9dt00202b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
At present, though calcium (Ca) reagents with high calcium contents are widely synthesized, their wide application is limited due to their low absorption rates and poor bioavailability. Here we use a carboxymethyl cellulose (CMC) derivative with high water solubility and biocompatibility as a ligand to bind Ca2+. The resulting CaCMC complex exhibits remarkable solubility and absorbability under both basic and acidic conditions as well as in stomach mimicking and the gastrointestinal tract. Importantly, this Ca reagent shows high in vivo calcium bioavailability. Data from osteoporosis mouse models show that the CaCMC complex is superior to calcium carbonate in the treatment of osteoporosis. Therefore, the resulting CaCMC complex is used as a new, highly effective and desirable Ca supplement for daily life and clinical applications.
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Affiliation(s)
- Jun Hai
- State Key Laboratory of Applied Organic Chemistry Lanzhou University and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China.
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Sakamoto A, Qi P, Ohba S, Ohta S, Hara Y, Ogawa T, Tomokiyo M, Sasaki A, Takizawa H, Mochizuki M, Ito T, Honnami M. Bone regeneration by calcium phosphate-loaded carboxymethyl cellulose nonwoven sheets in canine femoral condyle defects. J Biomed Mater Res B Appl Biomater 2018; 107:1516-1521. [PMID: 30265780 DOI: 10.1002/jbm.b.34243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/11/2018] [Accepted: 08/23/2018] [Indexed: 12/21/2022]
Abstract
The bone regeneration capacities of calcium phosphate (CaP)-loaded carboxymethyl cellulose (CMC) nonwoven sheet (CMC/CaP) were evaluated using a dog lateral femoral condyle defect model. In addition, the effect of bFGF on bone regeneration when added to CMC/CaP sheet was investigated. The CMC and CMC/CaP sheets have high operability. The new bone formation rate in the CMC/CaP group was significantly higher than that in the control and CMC groups based on micro-computed tomography and histological evaluation. In contrast, there was no significant difference between the CMC/CaP group and the CMC/CaP/f group. In conclusion, the CMC/CaP sheet has the ability to promote new bone formation and seems to be useful as a sheet-shaped bone graft substitute. The effect of the auditioning signaling molecules to the CMC/CaP sheet, such as bFGF, requires further investigation. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1516-1521, 2019.
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Affiliation(s)
- Ayumi Sakamoto
- Laboratory of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Pan Qi
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinsuke Ohba
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Seiichi Ohta
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuichi Hara
- Asahi Kasei Corporation, 4-3400-1 Asahi-machi, Nobeoka, Miyazaki 882-0847, Japan
| | - Takayuki Ogawa
- Asahi Kasei Corporation, 4-3400-1 Asahi-machi, Nobeoka, Miyazaki 882-0847, Japan
| | - Masahiro Tomokiyo
- Asahi Kasei Corporation, 4-3400-1 Asahi-machi, Nobeoka, Miyazaki 882-0847, Japan
| | - Akari Sasaki
- Laboratory of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Harue Takizawa
- Laboratory of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Manabu Mochizuki
- Laboratory of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.,Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Taichi Ito
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Muneki Honnami
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Qi P, Ohba S, Hara Y, Fuke M, Ogawa T, Ohta S, Ito T. Fabrication of calcium phosphate-loaded carboxymethyl cellulose non-woven sheets for bone regeneration. Carbohydr Polym 2018; 189:322-330. [DOI: 10.1016/j.carbpol.2018.02.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/16/2018] [Accepted: 02/18/2018] [Indexed: 10/18/2022]
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Thoma DS, Weber FE, Bienz SP, Ge Y, Hämmerle CHF, Jung RE. Biodegradation and tissue integration of various polyethylene glycol matrices: a comparative study in rabbits. Clin Oral Implants Res 2017; 28:e244-e251. [PMID: 28111809 DOI: 10.1111/clr.13004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To test whether or not chemical and/or physical modifications of polyethylene glycol (PEG) hydrogels influence degradation time, matrix/membrane stability, and integration into surrounding hard and soft tissues. MATERIAL AND METHODS In 28 rabbits, six treatment modalities were randomly applied to six sites on the rabbit skull: a dense network PEG hydrogel (PEG HD), a medium-dense network PEG hydrogel (PEG MD), a medium-dense network PEG hydrogel modified with an RGD sequence (PEG MD/RGD), a medium-dense network PEG hydrogel modified with RGD with reduced carboxymethyl cellulose (PEG MD/RGD_LV), a loose network PEG hydrogel modified with RGD (PEG LD/RGD), and a collagen membrane (BG). Descriptive histology and histomorphometry were performed at 1, 2, 4, and 6 weeks. RESULTS PEG HD revealed the highest percentage of residual matrix at all time points starting with 47.2% (95% CI: 32.8-63.8%) at 1 week and ending with 23.4% (95% CI: 10.3-49.8%) at 6 weeks. The hydrogel with the loosest network (PEG LD/RGD) was stable the first 2 weeks and then degraded continuously with a final area of 8.3% (95% CI: 3.2-21.2%). PEG HD was the most stable and densely stained membrane, whereas PEG MD and PEG LD matrices integrated faster, but started to degrade to a higher degree between 2 and 4 weeks. PEG MD degradation was dependent on the addition of RGD and the amount of CMC. CONCLUSIONS Chemical and/or physical modifications of PEG hydrogels influenced matrix stability. PEG MD/RGD demonstrated an optimal balance between degradation time and integration into the surrounding soft and hard tissues.
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Affiliation(s)
- Daniel S Thoma
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Franz E Weber
- Center of Dental Medicine, Oral Biotechnology & Bioengineering, University of Zurich, Zurich, Switzerland
| | - Stefan P Bienz
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Yanjun Ge
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Christoph H F Hämmerle
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Ronald E Jung
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
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Vinzenz P, Schröckmair S, Gruber R, Agis H. Bone substitute materials supplemented with prolyl hydroxylase inhibitors decrease osteoclastogenesis in vitro. J Biomed Mater Res B Appl Biomater 2014; 103:1198-203. [PMID: 25312707 DOI: 10.1002/jbm.b.33295] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 08/14/2014] [Accepted: 09/12/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND AND OBJECTIVE Inhibition of prolyl hydroxylases stimulates bone regeneration. Consequently, bone substitute materials were developed that release prolyl hydroxylase inhibitors. However, the impact of prolyl hydroxylase inhibitors released from these carriers on osteoclastogenesis is not clear. We therefore assessed the effect of bone substitute materials that release prolyl hydroxylase inhibitors on osteoclastogenesis. MATERIAL AND METHODS Dimethyloxalylglycine, desferrioxamine, and l-mimosine were lyophilized onto bovine bone mineral and hydroxyapatite, and supernatants were generated. Osteoclastogenesis was induced in murine bone marrow cultures in the presence of the supernatants from bone substitute materials. The formation of tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells and TRAP activity were determined. To test for possible effects on osteoclast progenitor cells, we measured the effect of the supernatants on proliferation and viability. In addition, experiments were performed where prolyl hydroxylase inhibitors were directly added to the bone marrow cultures. RESULTS We found that prolyl hydroxylase inhibitors released within the first hours from bone substitute materials reduce the number and activity of TRAP-positive multinucleated cells. In line with this, addition of prolyl hydroxylase inhibitors directly to the bone marrow cultures dose-dependently reduced the number of TRAP-positive multinucleated cells and the overall resorption activity. Moreover, the released prolyl hydroxylase inhibitors decreased proliferation but not viability of osteoclast progenitor cells. CONCLUSION Our results show that prolyl hydroxylase inhibitors released from bone substitute materials decrease osteoclastogenesis in murine bone marrow cultures.
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Affiliation(s)
- Philipp Vinzenz
- Department of Oral Surgery, Medical University of Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Stefan Schröckmair
- Department of Oral Surgery, Medical University of Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Reinhard Gruber
- Department of Oral Surgery, Medical University of Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Laboratory of Oral Cell Biology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Hermann Agis
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Conservative Dentistry and Periodontology, Medical University of Vienna, Vienna, Austria
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Liu W, Zhang J, Weiss P, Tancret F, Bouler JM. The influence of different cellulose ethers on both the handling and mechanical properties of calcium phosphate cements for bone substitution. Acta Biomater 2013. [PMID: 23201018 DOI: 10.1016/j.actbio.2012.11.020] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The influence of cellulose ether additives (CEAs) on the performance of final calcium phosphate cement (CPC) products is thoroughly investigated. Four CEAs were added into the liquid phase of apatitic CPCs based on the hydrolysis of α-tricalcium phosphate, to investigate the influence of both molecular weight and degree of substitution on the CPCs' properties, including handling (e.g. injectability, cohesion, washout resistance and setting time), microstructure (e.g. porosity and micromorphology) and mechanical properties (e.g. fracture toughness and compressive strength). The results showed that even a small amount of CEAs modified most of these CPCs' features, depending on the structural parameters of the CEAs. The CEAs dramatically improved the injectability, cohesion and washout resistance of the pastes, prolonged the final setting time and increased the porosity of CPCs. Moreover, the CEAs had an evident toughening effect on CPCs, and this effect become more significant with increasing molecular weight and mass fraction of CEAs, inducing a significant tolerance to damage. Overall, the molecular weight of CEAs played a major role compared to their degree of substitution in CPCs' performances.
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Bulk properties and bioactivity assessment of porous polymethylmethacrylate cement loaded with calcium phosphates under simulated physiological conditions. Acta Biomater 2012; 8:3120-7. [PMID: 22588072 DOI: 10.1016/j.actbio.2012.05.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Revised: 05/02/2012] [Accepted: 05/07/2012] [Indexed: 11/21/2022]
Abstract
Polymethylmethacrylate (PMMA) cements are widely used in spinal surgery. Nevertheless, these types of cements present some documented drawbacks. Therefore, efforts have been made to improve the properties and biological performance of solid PMMA. A porous structure would seem to be advantageous for anchoring purposes. This work studied the bulk physicochemical, mechanical and interconnectivity properties of porous PMMA cements loaded with various amounts of calcium phosphate (CaP). As a measure of bioactivity, changes of PMMA cements under simulated physiological conditions were studied in a calcium phosphate solution for 0, 3, 7, 14, 21 and 28 days. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), micro-computed tomography (μ-CT) and mechanical compression tests were performed to characterize the morphology, crystallographic and chemical composition, interconnectivity and mechanical properties, respectively. SEM allowed observing the result of loading CaP into the porous PMMA, which was corroborated by XRD, FTIR and μ-CT. No interference of the CaP with the PMMA was detected. μ-CT described similar interconnectivity and pore distribution for all CaP percentages. Mechanical properties were not significantly altered by the CaP percentages or the immersion time. Hence, porous PMMA was effectively loaded with CaP, which provided the material with properties for potential osteoconductivity.
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