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Tomczyk-Warunek A, Turżańska K, Posturzyńska A, Kowal F, Blicharski T, Pano IT, Winiarska-Mieczan A, Nikodem A, Dresler S, Sowa I, Wójciak M, Dobrowolski P. Influence of Various Strontium Formulations (Ranelate, Citrate, and Chloride) on Bone Mineral Density, Morphology, and Microarchitecture: A Comparative Study in an Ovariectomized Female Mouse Model of Osteoporosis. Int J Mol Sci 2024; 25:4075. [PMID: 38612883 PMCID: PMC11012416 DOI: 10.3390/ijms25074075] [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: 01/26/2024] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Osteoporosis stands out as a prevalent skeletal ailment, prompting exploration into potential treatments, including dietary strontium ion supplements. This study assessed the efficacy of supplementation of three strontium forms-strontium citrate (SrC), strontium ranelate (SrR), and strontium chloride (SrCl)-for enhancing bone structure in 50 female SWISS mice, aged seven weeks. In total, 40 mice underwent ovariectomy, while 10 underwent sham ovariectomy. Ovariectomized (OVX) mice were randomly assigned to the following groups: OVX (no supplementation), OVX + SrR, OVX + SrC, and OVX + SrCl, at concentrations equivalent to the molar amount of strontium. After 16 weeks, micro-CT examined trabeculae and cortical bones, and whole-bone strontium content was determined. Results confirm strontium administration increased bone tissue mineral density (TMD) and Sr content, with SrC exhibiting the weakest effect. Femur morphometry showed limited Sr impact, especially in the OVX + SrC group. This research highlights strontium's potential in bone health, emphasizing variations in efficacy among its forms.
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Affiliation(s)
- Agnieszka Tomczyk-Warunek
- Laboratory of Locomotor Systems Research, Department of Rehabilitation and Physiotherapy, Medical University of Lublin, 20-954 Lublin, Poland;
| | - Karolina Turżańska
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Agnieszka Posturzyńska
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Filip Kowal
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Tomasz Blicharski
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Inés Torné Pano
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, 20-954 Lublin, Poland; (A.P.); (F.K.); (T.B.); (I.T.P.)
| | - Anna Winiarska-Mieczan
- Department of Bromatology and Nutrition Physiology, Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland;
| | - Anna Nikodem
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego, 50-370 Wrocław, Poland;
| | - Sławomir Dresler
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (S.D.); (I.S.); (M.W.)
- Department of Plant Physiology and Biophysics, Institute of Biological Science, Maria Curie-Skłodowska University, 20-033 Lublin, Poland
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (S.D.); (I.S.); (M.W.)
| | - Magdalena Wójciak
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (S.D.); (I.S.); (M.W.)
| | - Piotr Dobrowolski
- Department of Functional Anatomy and Cytobiology, Maria Curie-Skłodowska University, 20-033 Lublin, Poland;
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Byeon SM, Bae TS, Lee MH, Ahn SG. Guided bone regeneration of calcium phosphate-coated and strontium ranelate-doped titanium mesh in a rat calvarial defect model. J Periodontal Implant Sci 2024; 54:54.e3. [PMID: 38290999 DOI: 10.5051/jpis.2303000150] [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: 06/19/2023] [Revised: 11/20/2023] [Accepted: 11/29/2023] [Indexed: 02/01/2024] Open
Abstract
PURPOSE When applied alone, titanium (Ti) mesh may not effectively block the penetration of soft tissues, resulting in insufficient new bone formation. This study aimed to confer bioactivity and improve bone regeneration by doping calcium phosphate (CaP) precipitation and strontium (Sr) ranelate onto a TiO2 nanotube (TNT) layer on the surface of a Ti mesh. METHODS The TNT layer was obtained by anodizing on the Ti mesh, and CaP was formed by cyclic pre-calcification. The final specimens were produced by doping with Sr ranelate. The surface properties of the modified Ti mesh were investigated using high-resolution field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction. To evaluate the effects of surface treatment on cell viability, osteoblasts were cultured for 1-3 days, and their absorbance was subsequently measured. In an in vivo experiment, critical-size defects were created in rat calvaria (Ф=8 mm). After 5 weeks, the rats were sacrificed (n=4 per group) and bone blocks were taken for micro-computed tomography and histological analysis. RESULTS After immersing the Sr ranelate-doped Ti mesh in simulated body fluid, the protrusions observed in the initial stage of hydroxyapatite were precipitated as a dense structure. On day 3 of osteoblast culture, cell viability was significantly higher on the pre-calcified Sr ranelate-doped Ti mesh surface than on the untreated Ti mesh surface (P<0.05). In the in vivo experiment, a bony bridge formed between the surrounding basal bone and the new bone under the Sr ranelate-doped Ti mesh implanted in a rat calvarial defect, closing the defect. New bone mineral density (0.91±0.003 g/mm3) and bone volume (29.35±2.082 mm3) significantly increased compared to the other groups (P<0.05). CONCLUSIONS Cyclic pre-calcification of a Ti mesh with a uniform TNT layer increased bioactivity, and subsequent doping with Sr ranelate effectively improved bone regeneration in bone defects.
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Affiliation(s)
- Seon Mi Byeon
- Department of Dental Biomaterials, Institute of Biodegradable Materials, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Tae Sung Bae
- Department of Dental Biomaterials, Institute of Biodegradable Materials, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Min Ho Lee
- Department of Dental Biomaterials, Institute of Biodegradable Materials, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Seung Geun Ahn
- Department of Prosthodontics, School of Dentistry, Jeonbuk National University, Jeonju, Korea
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea.
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Akshata CR, Murugan E, Harichandran G. Alginate templated synthesis, characterization and in vitro osteogenic evaluation of strontium-substituted hydroxyapatite. Int J Biol Macromol 2023; 252:126478. [PMID: 37625758 DOI: 10.1016/j.ijbiomac.2023.126478] [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: 05/09/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 08/27/2023]
Abstract
The objective of this study is to explore the potential role of alginate (Alg) in the crystallization of metal-substituted hydroxyapatite, with application in orthopaedic reconstruction. The alginate at different concentrations (0.5 and 1.0 wt%) facilitated in situ mineralization of hydroxyapatite (HA) and strontium-substituted HA (SHA, 10 and 30 mol%). The incorporation of the biopolymer and dopant induced notable changes in HA, including reduced crystal size from 31.0 to 16.4 nm and increased lattice volume from 577.3 to 598.0 Å3. The superior affinity of alginate for Sr2+ than for Ca2+ resulted in higher residual alginate in Alg/SHA (13.0 to 19.0 %) compared to Alg/HA (7.1 to 8.2 %). This residual alginate influenced composite properties: surface charge decreased from -26.5 to -45.7 mV, microhardness increased from 0.33 to 0.54 GPa, and dissolution increased from 0.17 to 0.39 %. The in vitro studies revealed that strontium substitution as well as the organization and crystallographic aspects of apatite regulated osteoblastic cell survival, proliferation, differentiation, and biomineralization. The findings suggest that an alginate concentration of 0.5 wt% is optimal for the crystallization of SHA with 10 mol% substitution, and its resulting composite possesses the ideal biomechanical properties to imitate native bone.
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Affiliation(s)
- C R Akshata
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
| | - E Murugan
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
| | - G Harichandran
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
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Murugan E, Akshata CR. Dextrose, maltose and starch guide crystallization of strontium-substituted hydroxyapatite: A comparative study for bone tissue engineering application. Int J Biol Macromol 2023; 248:125927. [PMID: 37481177 DOI: 10.1016/j.ijbiomac.2023.125927] [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: 04/13/2023] [Revised: 07/12/2023] [Accepted: 07/19/2023] [Indexed: 07/24/2023]
Abstract
The influence of carbohydrates on the crystallization of metal-substituted hydroxyapatite predicts its relevance to natural bone growth. This study demonstrates the role of carbohydrates in the crystallization of strontium-substituted hydroxyapatite (SHAP). The increasing order of hydroxyl groups, dextrose (monosaccharide) < maltose (disaccharide) < starch (polysaccharide), coordinated with Ca2+/Sr2+ and thus guided SHAP crystallization, with crystal size reduced from 35 to 19 nm, lattice volume increased from 518 to 537 Å3, and residual carbohydrates increased from 1.8 to 20.2 %. The variation in residual carbohydrates is due to their interaction with apatite and/or aqueous insolubility. Compared to pure SHAP, the starch-SHAP with higher residual starch showed increased water uptake from 1.23 ± 0.18 to 4.26 ± 0.21 % and degradation from 0.22 ± 0.06 to 1.53 ± 0.14 %, but decreased microhardness from 0.73 ± 0.12 to 0.38 ± 0.01 GPa and protein affinity from 4.82 ± 0.01 to 0.81 ± 0.01 μg/mg. However, its microhardness value was bone-like, and the reduced protein adsorption was masked by the rich osteogenic behaviour. In vitro cellular response demonstrated that the residual carbohydrate and strontium augmented osteocompatibility, proliferation, differentiation and biomineralization. The result concludes that carbohydrates drive SHAP crystallization, and starch-SHAP replicates natural bone.
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Affiliation(s)
- E Murugan
- Department of Physical Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
| | - C R Akshata
- Department of Physical Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
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Li S, Zhang L, Liu C, Kim J, Su K, Chen T, Zhao L, Lu X, Zhang H, Cui Y, Cui X, Yuan F, Pan H. Spontaneous immunomodulation and regulation of angiogenesis and osteogenesis by Sr/Cu-borosilicate glass (BSG) bone cement to repair critical bone defects. Bioact Mater 2023; 23:101-117. [DOI: 10.1016/j.bioactmat.2022.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/13/2022] [Accepted: 10/17/2022] [Indexed: 11/11/2022] Open
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Park JE, Jang YS, Seo JM, Lee MH. Facilitated osteogenesis of magnesium implant by coating of strontium incorporated calcium phosphate. Biointerphases 2023; 18:2888968. [PMID: 37144874 DOI: 10.1116/6.0002598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/19/2023] [Indexed: 05/06/2023] Open
Abstract
This study investigated the corrosion resistance and biocompatibility of magnesium coated with strontium-doped calcium phosphate (Sr-CaP) for dental and orthopedic applications. Sr-CaP was coated on biodegradable magnesium using a chemical dipping method. Magnesium coated with Sr-CaP exhibited better corrosion resistance than pure magnesium. Sr-CaP-coated magnesium showed excellent cell proliferation and differentiation. Additionally, new bone formation was confirmed in vivo. Therefore, Sr-CaP-coated magnesium with reduced degradation and improved biocompatibility can be used for orthopedic and dental implant applications.
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Affiliation(s)
- Jung-Eun Park
- Department of Dental Biomaterials and Institute of Biodegradable material, Institute of Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju 54896, South Korea
| | - Yong-Seok Jang
- Department of Dental Biomaterials and Institute of Biodegradable material, Institute of Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju 54896, South Korea
| | - Jae-Min Seo
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, South Korea
- Department of Prosthodontics and Institute of Oral Bio-Science, School of Dentistry, Jeonbuk National University, Jeonju 54896, South Korea
| | - Min-Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable material, Institute of Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju 54896, South Korea
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Akshata CR, Harichandran G, Murugan E. Effect of pectin on the crystallization of strontium substituted HA for bone reconstruction application. Colloids Surf B Biointerfaces 2023; 226:113312. [PMID: 37068445 DOI: 10.1016/j.colsurfb.2023.113312] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/29/2023] [Accepted: 04/09/2023] [Indexed: 04/19/2023]
Abstract
The biomacropolymers of bone extracellular matrix (ECM) guide the growth of hydroxyapatite (HA) with various ionic substitutions. Pectin, a plant polysaccharide with chemical similarities to ECM, was investigated for its potential to promote the crystallization of strontium-substituted HA (SH). The influence of pectin (0.5 and 1.0 wt%) on the in situ mineralization of SH (10 and 30 mol% calcium substitution with strontium) was studied. The preferential affinity of pectin to strontium over calcium favoured the incorporation of strontium in apatite, decreased crystal size (18.85-26.22 nm) and retained more pectin residues (8-16%). The residual pectin strongly interacted with small SH particles, resulting in high microhardness (0.43-0.85 GPa) and high surface charge (-32.1 to -30.3 mV), while weak interaction with large HA particles resulted in low microhardness (0.15-0.25 GPa) and low surface charge (-35.4 to -34.6 mV). The in vitro cellular study using human osteoblast-like MG-63 cells demonstrated that inorganic size and material crystallinity play a vital role in regulating osteogenesis. The study suggests that the synchronization of low pectin concentration (0.5 wt%) and high strontium substitution in HA (30 mol%) offers the desired microhardness and in vitro osteogenic properties to emulate natural bone.
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Affiliation(s)
- C R Akshata
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
| | - G Harichandran
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
| | - E Murugan
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
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Aboutalebianaraki N, Zeblisky P, Sarker MD, Jeyaranjan A, Sakthivel TS, Fu Y, Lucchi J, Baudelet M, Seal S, Kean TJ, Razavi M. An osteogenic magnesium alloy with improved corrosion resistance, antibacterial, and mechanical properties for orthopedic applications. J Biomed Mater Res A 2023; 111:556-574. [PMID: 36494895 DOI: 10.1002/jbm.a.37476] [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: 12/09/2021] [Revised: 07/08/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022]
Abstract
The aim of this study was to develop a novel biodegradable magnesium (Mg) alloy for bone implant applications. We used scandium (Sc; 2 wt %) and strontium (Sr; 2 wt %) as alloying elements due to their high biocompatibility, antibacterial efficacy, osteogenesis, and protective effects against corrosion. In the present work, we also examined the effect of a heat treatment process on the properties of the Mg-Sc-Sr alloy. Alloys were manufactured using a metal casting process followed by heat treatment. The microstructure, corrosion, mechanical properties, antibacterial activity, and osteogenic activity of the alloy were assessed in vitro. The results showed that the incorporation of Sc and Sr elements controlled the corrosion, reduced the hydrogen generation, and enhanced mechanical properties. Furthermore, alloying with Sc and Sr demonstrated a significantly enhanced antibacterial activity and decreased biofilm formation compared to control Mg. Also, culturing Mg-Sc-Sr alloy with human bone marrow-derived mesenchymal stromal cells showed a high degree of biocompatibility (>90% live cells) and a significant increase in osteoblastic differentiation in vitro shown by Alizarin red staining and alkaline phosphatase activity. Based on these results, the Mg-Sc-Sr alloy heat-treated at 400°C displayed optimal mechanical properties, corrosion rate, antibacterial efficacy, and osteoinductivity. These characteristics make the Mg-Sc-Sr alloy a promising candidate for biodegradable orthopedic implants in the fixation of bone fractures such as bone plate-screws or intramedullary nails.
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Affiliation(s)
- Nadia Aboutalebianaraki
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA.,Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA
| | - Peter Zeblisky
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - M D Sarker
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Aadithya Jeyaranjan
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA.,Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, University of Central Florida, Orlando, Florida, USA
| | - Tamil S Sakthivel
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA.,Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, University of Central Florida, Orlando, Florida, USA
| | - Yifei Fu
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA.,Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, University of Central Florida, Orlando, Florida, USA
| | - John Lucchi
- Department of Chemistry, University of Central Florida, Orlando, Florida, USA.,National Center for Forensic Science, University of Central Florida, Orlando, Florida, USA
| | - Matthieu Baudelet
- Department of Chemistry, University of Central Florida, Orlando, Florida, USA.,National Center for Forensic Science, University of Central Florida, Orlando, Florida, USA.,CREOL - The College of Optics and Photonics, University of Central Florida, Orlando, Florida, USA
| | - Sudipta Seal
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA.,Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA.,Advanced Materials Processing and Analysis Center, Nanoscience Technology Center, University of Central Florida, Orlando, Florida, USA
| | - Thomas J Kean
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Mehdi Razavi
- Biionix™ (Bionic Materials, Implants & Interfaces) Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA.,Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, USA
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Garimella A, M R, Ghosh SB, Bandyopadhyay-Ghosh S, Agrawal AK. Bioactive fluorcanasite reinforced magnesium alloy-based porous bio-nanocomposite scaffolds with tunable mechanical properties. J Biomed Mater Res B Appl Biomater 2023; 111:463-477. [PMID: 36208413 DOI: 10.1002/jbm.b.35166] [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: 05/02/2022] [Revised: 08/12/2022] [Accepted: 09/03/2022] [Indexed: 12/15/2022]
Abstract
Magnesium (Mg) alloy-based porous bio-nanocomposite bone scaffolds were developed by powder metallurgy route. Selective alloying elements such as calcium (Ca), zinc (Zn) and strontium (Sr) were incorporated to tune the mechanical integrity while, bioactive fluorcanasite nano-particulates were introduced within the alloy system to enhance the bone tissue regeneration. Green compacts containing carbamide were fabricated and sintered using two-stage heat treatment process to achieve the targeted porosities. The microstructure of these fabricated magnesium alloy-based bio-nanocomposites was examined by Field emission scanning electron microscope (FE-SEM) and x-ray micro computed tomography (x-ray μCT), which revealed gradient porosities and distribution of alloying elements. X-ray diffraction (XRD) studies confirmed the presence of major crystalline phases in the fabricated samples and the evolution of the various combinations of intermetallic phases of Ca, Mg, Zn and Sr which were anticipated to enhance the mechanical properties. Further, XRD studies revealed the presence of apatite phase for the immersed samples, a conducive environment for bone regeneration. The fabricated samples were evaluated for their mechanical performance against uniaxial compression load. The tunability of compressive strengths and modulus values could be established with variation in porosities of fabricated samples. The retained compressive strength and Young's modulus of the samples following immersion in phosphate buffered saline (PBS) solution was found to be in line with that of natural human cancellous bone, thereby establishing the potential of the fabricated magnesium-alloy-based nanocomposite as a promising scaffold candidate for bone tissue engineering.
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Affiliation(s)
- Adithya Garimella
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India.,Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, India
| | - Ramya M
- Department of Biotechnology, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, India
| | - Subrata Bandhu Ghosh
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Sanchita Bandyopadhyay-Ghosh
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
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Abodunrin OD, El Mabrouk K, Bricha M. A review on borate bioactive glasses (BBG): effect of doping elements, degradation, and applications. J Mater Chem B 2023; 11:955-973. [PMID: 36633185 DOI: 10.1039/d2tb02505a] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Because of their excellent biologically active qualities, bioactive glasses (BGs) have been extensively used in the biomedical domain, leading to better tissue-implant interactions and promoting bone regeneration and wound healing. Aside from having attractive characteristics, BGs are appealing as a porous scaffold material. On the other hand, such porous scaffolds should enable tissue proliferation and integration with the natural bone and neighboring soft tissues and degrade at a rate that allows for new bone development while preventing bacterial colonization. Therefore, researchers have recently become interested in a different BG composition based on borate (B2O3) rather than silicate (SiO2). Furthermore, apatite synthesis in the borate-based bioactive glass (BBG) is faster than in the silicate-based bioactive glass, which slowly transforms to hydroxyapatite. This low chemical durability of BBG indicates a fast degradation process, which has become a concern for their utilization in biological and biomedical applications. To address these shortcomings, glass network modifiers, active ions, and other materials can be combined with BBG to improve the bioactivity, mechanical, and regenerative properties, including its degradation potential. To this end, this review article will highlight the details of BBGs, including their structure, properties, and medical applications, such as bone regeneration, wound care, and dental/bone implant coatings. Furthermore, the mechanism of BBG surface reaction kinetics and the role of doping ions in controlling the low chemical durability of BBG and its effects on osteogenesis and angiogenesis will be outlined.
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Affiliation(s)
- Oluwatosin David Abodunrin
- Euromed Research Centre, Euromed Polytechnic School, Euromed University of Fes, Eco-Campus, Fes-Meknes Road, 30030 Fes, Morocco.
| | - Khalil El Mabrouk
- Euromed Research Centre, Euromed Polytechnic School, Euromed University of Fes, Eco-Campus, Fes-Meknes Road, 30030 Fes, Morocco.
| | - Meriame Bricha
- Euromed Research Centre, Euromed Polytechnic School, Euromed University of Fes, Eco-Campus, Fes-Meknes Road, 30030 Fes, Morocco.
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The Localized Ionic Microenvironment in Bone Modelling/Remodelling: A Potential Guide for the Design of Biomaterials for Bone Tissue Engineering. J Funct Biomater 2023; 14:jfb14020056. [PMID: 36826855 PMCID: PMC9959312 DOI: 10.3390/jfb14020056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/11/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
Bone is capable of adjusting size, shape, and quality to maintain its strength, toughness, and stiffness and to meet different needs of the body through continuous remodeling. The balance of bone homeostasis is orchestrated by interactions among different types of cells (mainly osteoblasts and osteoclasts), extracellular matrix, the surrounding biological milieus, and waste products from cell metabolisms. Inorganic ions liberated into the localized microenvironment during bone matrix degradation not only form apatite crystals as components or enter blood circulation to meet other bodily needs but also alter cellular activities as molecular modulators. The osteoinductive potential of inorganic motifs of bone has been gradually understood since the last century. Still, few have considered the naturally generated ionic microenvironment's biological roles in bone remodeling. It is believed that a better understanding of the naturally balanced ionic microenvironment during bone remodeling can facilitate future biomaterial design for bone tissue engineering in terms of the modulatory roles of the ionic environment in the regenerative process.
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Murugan E, Akshata CR. Graphene oxide reinforced SrHAP composite as a drug carrier in bone regeneration. Colloids Surf B Biointerfaces 2022; 219:112822. [PMID: 36162178 DOI: 10.1016/j.colsurfb.2022.112822] [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: 05/16/2022] [Revised: 08/16/2022] [Accepted: 08/31/2022] [Indexed: 10/31/2022]
Abstract
Strontium substituted HAP (SrHAP), with a 10 mol% substitution, was mineralized on increasing weight percentages of graphene oxide (2, 4 and 6). The GS composites were comprehensively characterized for drug delivery in bone reconstruction. The formation of SrHAP was verified by XRD and FT-IR results. The apatite crystallization was influenced by graphene oxide content and strontium. The EDS results confirmed the presence of strontium and HR-SEM depicted rod shape apatite, of length between 58 and 135 nm, uniformly embedded on graphene oxide. The reinforcement of graphene oxide increased the surface area, porosity, microhardness (upto 0.59 GPa), protein adsorption (upto 18.16 μg/mg), water uptake and degradation properties. Also, the increase in graphene oxide fraction significantly enhanced the curcumin encapsulation efficiency (upto 80.16%) and the drug release was considerably retarded over SrHAP. The in vitro studies using human osteoblast-like MG-63 cells demonstrated that curcumin-loaded composite was biocompatible and promoted proliferation, differentiation and matrix mineralization. The results highlight the combinational therapy of osteogenic ion (strontium) and osteogenic drug (curcumin) as a promising platform in bone tissue engineering.
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Affiliation(s)
- E Murugan
- Department of Physical Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
| | - C R Akshata
- Department of Physical Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
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Song MS, Li RW, Qiu Y, Man SM, Tuipulotu DE, Birbilis N, Smith PN, Cole I, Kaplan DL, Chen XB. Gallium-Strontium Phosphate Conversion Coatings for Promoting Infection Prevention and Biocompatibility of Magnesium for Orthopedic Applications. ACS Biomater Sci Eng 2022; 8:2709-2723. [PMID: 35574832 DOI: 10.1021/acsbiomaterials.2c00099] [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: 11/29/2022]
Abstract
Device-associated infections remain a clinical challenge. The common strategies to prevent bacterial infection are either toxic to healthy mammalian cells and tissue or involve high doses of antibiotics that can prompt long-term negative consequences. An antibiotic-free coating strategy to suppress bacterial growth is presented herein, which concurrently promotes bone cell growth and moderates the dissolution kinetics of resorbable magnesium (Mg) biomaterials. Pure Mg as a model biodegradable material was coated with gallium-doped strontium-phosphate through a chemical conversion process. Gallium was distributed in a gradual manner throughout the strontium-phosphate coating, with a compact structure and a gallium-rich surface. It was demonstrated that the coating protected the underlying Mg parts from significant degradation in minimal essential media at physiological conditions over 9 days. In terms of bacteria culture, the liberated gallium ions from the coatings upon Mg specimens, even though in minute quantities, inhibited the growth of Gram-positiveStaphylococcus aureus, Gram-negative Escherichia coli, andPseudomonas aeruginosa ─ key pathogens causing infection and early failure of the surgical implantations in orthopedics and trauma. More importantly, the gallium dopants displayed minimal interferences with the strontium-phosphate-based coating which boosted osteoblasts and undermined osteoclasts in in vitro co-cultures. This work provides a new strategy to prevent bacterial infection and control the degradation behavior of Mg-based orthopedic implants, while preserving osteogenic features of the devices.
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Affiliation(s)
- Ming-Shi Song
- School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
| | - Rachel W Li
- Trauma and Orthopaedic Research Laboratory, Department of Surgery, The Medical School, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Yao Qiu
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Si Ming Man
- Department of Immunology and Infectious Disease, College of Health & Medicine, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Daniel E Tuipulotu
- Department of Immunology and Infectious Disease, College of Health & Medicine, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Nick Birbilis
- School of Engineering, College of Engineering and Computer Science, The Australian National University, Acton, Canberra, Australian Capital Territory 2601, Australia
| | - Paul N Smith
- Department of Surgery, The Canberra Hospital, Garran, Australian Capital Territory 2605, Australia
| | - Ivan Cole
- School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, Victoria 3053, Australia
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14
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Strontium based Astragalus polysaccharides promote osteoblasts differentiation and mineralization. Int J Biol Macromol 2022; 205:761-771. [PMID: 35318083 DOI: 10.1016/j.ijbiomac.2022.03.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/08/2022] [Accepted: 03/15/2022] [Indexed: 11/23/2022]
Abstract
Bone formation and repair represent a clinical challenge. In this work, we designed and synthesized strontium Astragalus polysaccharide (APS-Sr), a novel polysaccharide compound that should have therapeutic effects on both anti-inflammation and promoting bone formation. Using material characterization techniques, including SEM, FITR, XRD, etc., we verified the successful synthesis of this compound. Moreover, we examined the potential of this compound for promoting bone repair and inhibiting inflammatory response by cell proliferation assay, ALP and Alizarin Red staining experiments and RT-qPCR. The biological experiment results showed that APS-Sr can effectively inhibit inflammatory factors, promote osteogenic differentiation and up-regulate the bone growth factors. It is therefore believed that APS-Sr should be a promising polysaccharide compound in bone-related biomedical applications.
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15
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Biodegradable Mg-Zn-Ca-Based Metallic Glasses. MATERIALS 2022; 15:ma15062172. [PMID: 35329624 PMCID: PMC8955783 DOI: 10.3390/ma15062172] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 12/15/2022]
Abstract
Biodegradable Mg-Zn-Ca-based metallic glasses (MGs) present improved strength and superior corrosion resistance, compared to crystalline Mg. In particular, in vivo and in vitro attempts reveal that biodegradable Mg-Zn-Ca-based MGs possess excellent biocompatibility, suggesting that they are ideal candidates for temporary implant materials. However, the limited size and severe brittleness prevent their widespread commercialization. In this review, we firstly summarize the microstructure characteristic and mechanical properties of Mg-Zn-Ca-based MGs. Then, we provide a comprehensive and systematic understanding of the recent progress of the biocorrosion and biocompatibility of Mg-Zn-Ca-based MGs. Last, but not least, the outlook towards the fabrication routes, composition design, structure design, and reinforcement approaches of Mg-Zn-Ca-based MGs are briefly proposed.
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Montazeri M, Esfahanizadeh N, Nourani M, Harandi M. Use of bioactive glass doped with magnesium or strontium for bone regeneration: A rabbit critical-size calvarial defects study. Dent Res J (Isfahan) 2022; 19:18. [PMID: 35308452 PMCID: PMC8927959 DOI: 10.4103/1735-3327.338781] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/08/2021] [Accepted: 09/30/2021] [Indexed: 11/04/2022] Open
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Abdollahi Boraei SB, Nourmohammadi J, Bakhshandeh B, Dehghan MM, Gholami H, Gonzalez Z, Sanchez-Herencia AJ, Ferrari B. Capability of core-sheath polyvinyl alcohol-polycaprolactone emulsion electrospun nanofibrous scaffolds in releasing strontium ranelate for bone regeneration. Biomed Mater 2021; 16:025009. [PMID: 33434897 DOI: 10.1088/1748-605x/abdb07] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Core-sheath nanofibrous scaffolds from polyvinyl alcohol (PVA)-strontium ranelate (SrR)-Polycaprolactone (PCL) were prepared by water in oil electrospinning method. Thus, PCL (the oil phase) was used as the shell part and a mixture of PVA and SrR (the water phase) was inserted in the core. The amounts of SrR was varied from 0 to 15 wt.% Mussel-inspired dopamine-gelatin coating was done on the nanofibrous to improve their hydrophilicity and cellular attachment. The effect of the SrR content on morphology, mechanical, physicochemical, in vitro release behaviors, and biological properties as well as in vivo bone regeneration was investigated. Morphological observations revealed that continuous nanofibers with a core/shell structure were successfully obtained and the fibers diameter increased as the SrR content rose. X-ray diffraction (XRD) analysis revealed that SrR was molecularly distributed in the nanofibers and increasing the amount of the SrR decreased the crystallinity of the nanofibers. Moreover, the SrR release was regulated through the mechanism of Fickian diffusion and it was assumed as fast as possible in the samples with higher SrR content. The mesenchymal stem cell culturing showed improved cell proliferation by adding SrR and accelerating the expression of ALP, Runx2, Col I, and OCN genes. Besides, the SrR-loaded nanofibers improved bone formation of calvarial defects in a rat model as revealed by in vivo investigations.
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Affiliation(s)
- Seyyed Behnam Abdollahi Boraei
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Instituto de Cerámica y Vidrio, CSIC, c/Kelsen 5, 28049 Madrid, Spain
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Comparable Effects of Strontium Ranelate and Alendronate Treatment on Fracture Reduction in a Mouse Model of Osteogenesis Imperfecta. BIOMED RESEARCH INTERNATIONAL 2021; 2021:4243105. [PMID: 33506016 PMCID: PMC7810565 DOI: 10.1155/2021/4243105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 11/10/2020] [Accepted: 12/22/2020] [Indexed: 01/16/2023]
Abstract
Alendronate (Aln) has been the first-line drug for osteogenesis imperfecta (OI), while the comparable efficacy of Aln and strontium ranelate (SrR) remains unclear. This study is aimed at comparing the effects of SrR and Aln treatment in a mouse model of OI. Three-week-old oim/oim and wt/wt female mice were treated with SrR (1800 mg/kg/day), Aln (0.21 mg/kg/week), or vehicle (Veh) for 11 weeks. After the treatment, the average number of fractures sustained per mouse was significantly reduced in both SrR- and Aln-treated oim/oim mice. The effect was comparable between these two agents. Both SrR and Aln significantly increased trabecular bone mineral density, bone histomorphometric parameters (bone volume, trabecular number, and cortical thickness and area), and biomechanical parameters (maximum load and stiffness) as compared with the Veh group. Both treatments reduced bone resorption parameters, with Aln demonstrating a stronger inhibitory effect than SrR. In contrast to its inhibitory effect on bone resorption, SrR maintained bone formation. Aln, however, also suppressed bone formation coupled with an inhibitory effect on bone resorption. The results of this study indicate that SrR has comparable effects with Aln on reducing fractures and improving bone mass and strength. In clinical practice, SrR may be considered an option for patients with OI when other medications are not suitable or have evident contraindications.
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The Effect of Strontium Ranelate on Fracture Healing: An Animal Study. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1085324. [PMID: 33415138 PMCID: PMC7768587 DOI: 10.1155/2020/1085324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 08/05/2020] [Accepted: 11/11/2020] [Indexed: 01/15/2023]
Abstract
Background Strontium ranelate (StR) is an antiosteoporotic agent previously utilized for the enhancement of fracture union. We investigated the effects of StR on fracture healing using a rabbit model. Methods Forty adult female rabbits were included in the study and were divided in 2 equal groups, according to StR treatment or untreated controls. All animals were subjected to osteotomy of the ulna, while the contralateral ulna remained intact and served as a control for the biomechanical assessment of fracture healing. Animals in the study group received 600 mg/kg/day of StR orally. All animals received ordinary food. At 2 and 4 weeks, all animals were euthanatized and the osteotomy sites were evaluated for healing through radiological, biomechanical, and histopathological studies. Results The treatment group presented statistically significant higher callus diameter, total callus area, percentage of fibrous tissue (p < 0.001), vessels/mm2, number of total vessels, and lower osteoclast number/mm2 (p < 0.05) than the control group at 2 weeks. Additionally, the treatment group presented significantly higher percentages of new trabecular bone, vessels/mm2, osteoclast number/mm2, and lower values for callus diameter, as well as total callus area (p < 0.05), than the control group at 4 weeks. At 4 weeks, in the treatment group, force applied (p = 0.003), energy at failure (p = 0.004), and load at failure (p = 0.003) were all significantly higher in the forearm specimens with the osteotomized ulnae compared to those without. Radiological bone union was demonstrated for animals receiving StR at 4 weeks compared with controls (p = 0.045). Conclusion StR appears to enhance fracture healing but further studies are warranted in order to better elucidate the mechanisms and benefits of StR treatment.
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García-Villén F, Sánchez-Espejo R, Borrego-Sánchez A, Cerezo P, Cucca L, Sandri G, Viseras C. Correlation between Elemental Composition/Mobility and Skin Cell Proliferation of Fibrous Nanoclay/Spring Water Hydrogels. Pharmaceutics 2020; 12:E891. [PMID: 32962099 PMCID: PMC7559572 DOI: 10.3390/pharmaceutics12090891] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/12/2020] [Accepted: 09/17/2020] [Indexed: 11/20/2022] Open
Abstract
Inorganic hydrogels formulated with spring waters and clay minerals are used to treat musculoskeletal disorders and skin affections. Their underlying mechanism of action for skin disorders is not clear, although it is usually ascribed to the chemical composition of the formulation. The aim of this study was to assess the composition and in vitro release of elements with potential wound healing effects from hydrogels prepared with two nanoclays and natural spring water. In vitro Franz cell studies were used and the element concentration was measured by inductively coupled plasma techniques. Biocompatibility studies were used to evaluate the potential toxicity of the formulation against fibroblasts. The studied hydrogels released elements with known therapeutic interest in wound healing. The released ratios of some elements, such as Mg:Ca or Zn:Ca, played a significant role in the final therapeutic activity of the formulation. In particular, the proliferative activity of fibroblasts was ascribed to the release of Mn and the Zn:Ca ratio. Moreover, the importance of formulative studies is highlighted, since it is the optimal combination of the correct ingredients that makes a formulation effective.
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Affiliation(s)
- Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
| | - Rita Sánchez-Espejo
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Ana Borrego-Sánchez
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
| | - Pilar Cerezo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
| | - Lucia Cucca
- Department of Chemistry, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy;
| | - Giuseppina Sandri
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy;
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain; (F.G.-V.); (P.C.)
- Andalusian Institute of Earth Sciences, CSIC-UGR (Consejo Superior de Investigaciones Científicas-Universidad de Granada), Avenida de las Palmeras 4, Armilla, 18100 Granada, Spain; (R.S.-E.); (A.B.-S.)
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Mehrabi T, Mesgar AS, Mohammadi Z. Bioactive Glasses: A Promising Therapeutic Ion Release Strategy for Enhancing Wound Healing. ACS Biomater Sci Eng 2020; 6:5399-5430. [PMID: 33320556 DOI: 10.1021/acsbiomaterials.0c00528] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The morbidity, mortality, and burden of burn victims and patients with severe diabetic wounds are still high, which leads to an extensively growing demand for novel treatments with high clinical efficacy. Biomaterial-based wound treatment approaches have progressed over time from simple cotton wool dressings to advanced skin substitutes containing cells and growth factors; however, no wound care approach is yet completely satisfying. Bioactive glasses are materials with potential in many areas that exhibit unique features in biomedical applications. Today, bioactive glasses are not only amorphous solid structures that can be used as a substitute in hard tissue but also are promising materials for soft tissue regeneration and wound healing applications. Biologically active elements such as Ag, B, Ca, Ce, Co, Cu, Ga, Mg, Se, Sr, and Zn can be incorporated in glass networks; hence, the superiority of these multifunctional materials over current materials results from their ability to release multiple therapeutic ions in the wound environment, which target different stages of the wound healing process. Bioactive glasses and their dissolution products have high potency for inducing angiogenesis and exerting several biological impacts on cell functions, which are involved in wound healing and some other features that are valuable in wound healing applications, namely hemostatic and antibacterial properties. In this review, we focus on skin structure, the dynamic process of wound healing in injured skin, and existing wound care approaches. The basic concepts of bioactive glasses are reviewed to better understand the relationship between glass structure and its properties. We illustrate the active role of bioactive glasses in wound repair and regeneration. Finally, research studies that have used bioactive glasses in wound healing applications are summarized and the future trends in this field are elaborated.
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Affiliation(s)
- Tina Mehrabi
- Biomaterials Laboratory, Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Abdorreza S Mesgar
- Biomaterials Laboratory, Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Zahra Mohammadi
- Biomaterials Laboratory, Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439957131, Iran
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Microwave processing of calcium phosphate and magnesium phosphate based orthopedic bioceramics: A state-of-the-art review. Acta Biomater 2020; 111:29-53. [PMID: 32447068 DOI: 10.1016/j.actbio.2020.05.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 01/09/2023]
Abstract
The main theme of this paper is to review microwave-assisted synthesis and processing of calcium and magnesium phosphate bioceramics. Microwave processing of advanced materials has been an active field of research for the last three decades and has been already reviewed in the literature. Microwave processing of bioceramics is being pursued for almost the same period of time. Unfortunately, to the best of our knowledge, we are not aware of any comprehensive review in the literature. Our group has been a significant contributor to the field, and we feel that it is an appropriate time for reviewing the state-of-the-art of the field. The paper is divided into several sections. After rationalizing the motivation behind writing this paper in the introduction, the second section builds on some fundamental aspects of microwave-matter interactions. The third section, representing the synthesis aspects, is subdivided into five sub-sections focusing on various calcium and magnesium phosphates in both crystalline and amorphous forms. The fourth section focuses on magnesium phosphate-based bioceramics. The fifth and the sixth section describe results on the utility of microwave assistance in developing multi-functional coatings on medical implants and orthopedic cements respectively. The subsequent section reviews results on microwave sintering of calcium and magnesium phosphates. The paper concludes with remarks on unresolved issues and future directions of research. It is expected that this comprehensive review on the interdisciplinary topic will further propel the exploration of other novel applications of microwave technology in processing biomaterials by a diverse group of scientists and engineers. STATEMENT OF SIGNIFICANCE: 1. This review highlights the broad-spectrum capabilities of microwave applications in processing orthopedic bioceramics. 2. The article covers "processing" in the broadest sense of the word, comprising of material synthesis, sintering, coating formation, and setting of orthopedic cements. It also expands beyond conventional calcium phosphates to include the emergent family of magnesium phosphates. 3. In vitro/in vivo responses of microwave-processed bioceramics are discussed thus providing an integral understanding of biological aspects of these materials. 4. The comprehensive review on this interdisciplinary topic will help researchers in various disciplines to appreciate the significance and usefulness of microwaves in biomaterials processing. Further, we also believe that it will propel the exploration of other novel applications of microwave technology in the biomaterials sector.
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Rothe R, Schulze S, Neuber C, Hauser S, Rammelt S, Pietzsch J. Adjuvant drug-assisted bone healing: Part III - Further strategies for local and systemic modulation. Clin Hemorheol Microcirc 2020; 73:439-488. [PMID: 31177207 DOI: 10.3233/ch-199104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this third in a series of reviews on adjuvant drug-assisted bone healing, further approaches aiming at influencing the healing process are discussed. Local and systemic modulation of bone metabolism is pursued with use of a number of drugs with completely different indications, which are characterized by a pleiotropic spectrum of action. These include drugs used to treat lipid disorders (HMG-CoA reductase inhibitors), hypertension (ACE inhibitors), osteoporosis (bisphosphonates), cancer (proteasome inhibitors) and others. Potential applications to enhance bone healing are discussed.
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Affiliation(s)
- Rebecca Rothe
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Sabine Schulze
- University Center of Orthopaedics and Traumatology (OUC), University Hospital Carl Gustav Carus, Dresden, Germany.,Center for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Christin Neuber
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Sandra Hauser
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany
| | - Stefan Rammelt
- University Center of Orthopaedics and Traumatology (OUC), University Hospital Carl Gustav Carus, Dresden, Germany.,Center for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.,Center for Regenerative Therapies Dresden (CRTD), Tatzberg 4, Dresden
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiopharmaceutical Cancer Research, Dresden, Germany.,Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Dresden, Germany
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Cui X, Zhang Y, Wang J, Huang C, Wang Y, Yang H, Liu W, Wang T, Wang D, Wang G, Ruan C, Chen D, Lu WW, Huang W, Rahaman MN, Pan H. Strontium modulates osteogenic activity of bone cement composed of bioactive borosilicate glass particles by activating Wnt/β-catenin signaling pathway. Bioact Mater 2020; 5:334-347. [PMID: 32206735 PMCID: PMC7078288 DOI: 10.1016/j.bioactmat.2020.02.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 01/06/2023] Open
Abstract
There is a need for synthetic grafts to reconstruct large bone defects using minimal invasive surgery. Our previous study showed that incorporation of Sr into bioactive borate glass cement enhanced the osteogenic capacity in vivo. However, the amount of Sr in the cement to provide an optimal combination of physicochemical properties and capacity to stimulate bone regeneration and the underlying molecular mechanism of this stimulation is yet to be determined. In this study, bone cements composed of bioactive borosilicate glass particles substituted with varying amounts of Sr (0 mol% to 12 mol% SrO) were created and evaluated in vitro and in vivo. The setting time of the cement increased with Sr substitution of the glass. Upon immersion in PBS, the cement degraded and converted more slowly to HA (hydroxyapatite) with increasing Sr substitution. The released Sr2+ modulated the proliferation, differentiation, and mineralization of hBMSCs (human bone marrow mesenchymal stem cells) in vitro. Osteogenic characteristics were optimally enhanced with cement (designated BG6Sr) composed of particles substituted with 6mol% SrO. When implanted in rabbit femoral condyle defects, BG6Sr cement supported better peri-implant bone formation and bone-implant contact, comparing to cements substituted with 0mol% or 9mol% SrO. The underlying mechanism is involved in the activation of Wnt/β-catenin signaling pathway in osteogenic differentiation of hBMSCs. These results indicate that BG6Sr cement has a promising combination of physicochemical properties and biological performance for minimally invasive healing of bone defects. A bone cement composed of Sr-substituted bioactive glass was developed. Sr can modulate the physicochemical properties of bone cements. Sr can enhance the osteogenic capacity of bone cements. Wnt/β-catenin pathway is involved in osteogenesis of the bone cements.
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Affiliation(s)
- Xu Cui
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China.,Schools of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Yadong Zhang
- Department of Orthopaedics, Shanghai Fengxian Central Hospital, South Campus of the Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, 201499, PR China.,Department of Orthopaedics, Fengxian Central Hospital Affiliated to Southern Medical University, Shanghai, 201499, PR China
| | - Jianyun Wang
- Shenzhen Healthemes Biotechnology Co.Ltd, Shenzhen, 518102, PR China
| | - Chengcheng Huang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
| | - Yudong Wang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
| | - Hongsheng Yang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
| | - Wenlong Liu
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
| | - Ting Wang
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics, The University of Hong Kong-Shenzhen Hospital, University of Hong Kong, Shenzhen, 518053, PR China
| | - Deping Wang
- Schools of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Guocheng Wang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
| | - Changshun Ruan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering Beijing, Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, 100035, PR China
| | - William W Lu
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China.,Department of Orthopaedics and Traumatology, The University of Hong Kong, Room 907, Lab Block, 21 Sassoon Road, Hong Kong SAR, PR China
| | - Wenhai Huang
- Schools of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Mohamed N Rahaman
- Department of Materials Science and Engineering, Missouri University of Science and Technology, MO, 65409-0340, USA
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, PR China
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Yang H, Jia B, Zhang Z, Qu X, Li G, Lin W, Zhu D, Dai K, Zheng Y. Alloying design of biodegradable zinc as promising bone implants for load-bearing applications. Nat Commun 2020; 11:401. [PMID: 31964879 PMCID: PMC6972918 DOI: 10.1038/s41467-019-14153-7] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 12/06/2019] [Indexed: 12/02/2022] Open
Abstract
Magnesium-based biodegradable metals (BMs) as bone implants have better mechanical properties than biodegradable polymers, yet their strength is roughly less than 350 MPa. In this work, binary Zn alloys with alloying elements Mg, Ca, Sr, Li, Mn, Fe, Cu, and Ag respectively, are screened systemically by in vitro and in vivo studies. Li exhibits the most effective strengthening role in Zn, followed by Mg. Alloying leads to accelerated degradation, but adequate mechanical integrity can be expected for Zn alloys when considering bone fracture healing. Adding elements Mg, Ca, Sr and Li into Zn can improve the cytocompatibility, osteogenesis, and osseointegration. Further optimization of the ternary Zn-Li alloy system results in Zn-0.8Li-0.4Mg alloy with the ultimate tensile strength 646.69 ± 12.79 MPa and Zn-0.8Li-0.8Mn alloy with elongation 103.27 ± 20%. In summary, biocompatible Zn-based BMs with strength close to pure Ti are promising candidates in orthopedics for load-bearing applications.
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Affiliation(s)
- Hongtao Yang
- Beijing Advanced Innovation Center for Materials Genome Engineering & Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Bo Jia
- Department of orthopaedic surgery, Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - Zechuan Zhang
- Beijing Advanced Innovation Center for Materials Genome Engineering & Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Xinhua Qu
- Department of orthopaedic surgery, Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - Guannan Li
- Beijing Advanced Innovation Center for Materials Genome Engineering & Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Wenjiao Lin
- R&D Center, Lifetech Scientific (Shenzhen) Co Ltd, Shenzhen, 518057, China
| | - Donghui Zhu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Stony Brook University, Stony Brook, NY, 11794-5281, USA
| | - Kerong Dai
- Department of orthopaedic surgery, Shanghai Key Laboratory of Orthopedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China.
| | - Yufeng Zheng
- Beijing Advanced Innovation Center for Materials Genome Engineering & Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China.
- International Research Organization for Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-Ku, Kumamoto, 860-8555, Japan.
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Liu WC, Hu CC, Tseng YY, Sakthivel R, Fan KS, Wang AN, Wang YM, Chung RJ. Study on strontium doped tricalcium silicate synthesized through sol-gel process. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110431. [PMID: 31923972 DOI: 10.1016/j.msec.2019.110431] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/22/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023]
Abstract
We successfully synthesized a strontium-doped tricalcium silicate (SrxCa3-xSiO5, Sr = 0 to 2 mol%) bone cement using the sol-gel process. The material properties including crystallinity, setting time, mechanical strength, and hydration products were characterized. Release of ions and pH values of simulated body fluid soaked with the bone cement were measured. In vitro biocompatibility of different concentrations of the material was evaluated by the viability of L929 cells. The setting times of as-prepared slurries were all <70 min. Doping with 0.5 mol% Sr reduced the final setting time by 20 min. After 14 days curing, 0.25 mol% Sr-doped SrxCa3-xSiO5 possessed the highest compressive strength of 45 MPa among all the Sr-doped groups with no statistical difference to Ca3SiO5. The bioactivity of the materials was confirmed with the formation of an apatite layer on the surface of the materials after immersion in simulated body fluid. In addition, the proliferation of L929 cells exposed to 1 mol% Sr was significantly promoted as compared to no Sr doping. SrxCa3-xSiO5 is a novel and advanced material that has the potential to serve as a bone cement in bone restoration with appropriate mechanical strength and favorable biocompatibility.
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Affiliation(s)
- Wai-Ching Liu
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan
| | - Chih-Chien Hu
- Bone and Joint Research Center, Chang Gung Memorial Hospital, Linko, Taiwan; Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Linko, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yuan-Yun Tseng
- Division of Neurosurgery, Department of Surgery, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan, ROC
| | - Rajalakshmi Sakthivel
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan
| | - Kuei-Sheng Fan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan
| | - An-Ni Wang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan
| | - Yi-Min Wang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, Taiwan.
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Alenezi A, Galli S, Atefyekta S, Andersson M, Wennerberg A. Osseointegration effects of local release of strontium ranelate from implant surfaces in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:116. [PMID: 31606798 PMCID: PMC6790188 DOI: 10.1007/s10856-019-6314-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Numerous studies have reported the beneficial effects of strontium on bone growth, particularly by stimulating osteoblast proliferation and differentiation. Thus, strontium release around implants has been suggested as one possible strategy to enhance implant osseointegration. AIM This study aimed to evaluate whether the local release of strontium ranelate (Sr-ranelate) from implants coated with mesoporous titania could improve bone formation around implants in an animal model. MATERIALS AND METHODS Mesoporous titania (MT) thin coatings were formed utilizing the evaporation induced self-assembly (EISA) method using Pluronic (P123) with or without the addition of poly propylene glycol (PPG) to create materials with two different pore sizes. The MT was deposited on disks and mini-screws, both made of cp Ti grade IV. Scanning electron microscopy (SEM) was performed to characterize the MT using a Leo Ultra55 FEG instrument (Zeiss, Oberkochen, Germany). The MT was loaded with Sr-ranelate using soaking and the drug uptake and release kinetics to and from the surfaces were evaluated using quartz crystal microbalance with dissipation monitoring (QCM-D) utilizing a Q-sense E4 instrument. For the in vivo experiment, 24 adult rats were analyzed at two time points of implant healing (2 and 6 weeks). Titanium implants shaped as mini screws were coated with MT films and divided into two groups; supplied with Sr-ranelate (test group) and without Sr-ranelate (control group). Four implants (both test and control) were inserted in the tibia of each rat. The in vivo study was evaluated using histomorphometric analyses of the implant/bone interphase using optical microscopy. RESULTS SEM images showed the successful formation of evenly distributed MT films covering the entire surface with pore sizes of 6 and 7.2 nm, respectively. The QCM-D analysis revealed an absorption of 3300 ng/cm2 of Sr-ranelate on the 7.2 nm MT, which was about 3 times more than the observed amount on the 6 nm MT (1200 ng/cm2). Both groups showed sustained release of Sr-ranelate from MT coated disks. The histomorphometric analysis revealed no significant differences in bone implant contact (BIC) and bone area (BA) between the implants with Sr-ranelate and implants in the control groups after 2 and 6 weeks of healing (BIC with a p-value of 0.43 after 2 weeks and 0.172 after 6 weeks; BA with a p-value of 0.503 after 2 weeks, and 0.088 after 6 weeks). The mean BIC and BA values within the same group showed significant increase among all groups between 2 and 6 weeks. CONCLUSION This study could not confirm any positive effects of Sr-ranelate on implant osseointegration.
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Affiliation(s)
- Ali Alenezi
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden.
- Department of Prosthodontics, College of Dentistry, Qassim University, Buraidah, Saudi Arabia.
| | - Silvia Galli
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Saba Atefyekta
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Ann Wennerberg
- Department of Prosthodontics/Dental Materials Science, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
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Marins LM, Napimoga MH, Malta FDS, Miranda TS, Nani EP, Franco BDST, da Silva HDP, Duarte PM. Effects of strontium ranelate on ligature-induced periodontitis in estrogen-deficient and estrogen-sufficient rats. J Periodontal Res 2019; 55:141-151. [PMID: 31539178 DOI: 10.1111/jre.12697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/15/2019] [Accepted: 08/26/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND OBJECTIVES Strontium ranelate is a medication indicated for the treatment of osteoporosis that presents concomitant anti-resorptive and osteoanabolic dual biological activity. However, the effects of strontium ranelate on alveolar bone have been poorly explored. Furthermore, to date, there are no data on the effects of this medication on alveolar bone loss (BL) during conditions of estrogen deficiency. Therefore, the aim of this study was to evaluate the effects of strontium ranelate on ligature-induced periodontitis in estrogen-deficient and estrogen-sufficient rats. METHODS Ninety-six rats were assigned to one of the following groups: sham-surgery + water (estrogen-sufficient; n = 24); ovariectomy + water (estrogen-deficient; n = 24), sham-surgery + strontium ranelate (ranelate/estrogen-sufficient; n = 24) and; ovariectomy + strontium ranelate (ranelate/estrogen-deficient; n = 24). The rats received strontium ranelate or water from the 14th day after ovariectomy until the end of the experiment. On the 21st day after ovariectomy, one first mandibular molar received a ligature, while the contralateral tooth was left unligated. Eight rats per group were killed at 10, 20, and 30 days after ligature placement. Bone loss (BL) and trabecular bone area (TBA) were analyzed in the furcation area of ligated and unligated teeth at all experimental times by histometry. Tartrate-resistant acid phosphatase (TRAP) positive cells and immunohistochemical staining for osteocalcin (OCN), osteopontin (OPN), osteoprotegerin (OPG), and receptor activator of NF-КB ligand (RANKL) were assessed in the ligated teeth at 30 days after ligature placement. RESULTS At 10 and 30 days, ligated teeth of the estrogen-deficient group exhibited higher BL, when compared to all other groups (P < .05). At 10 days, TBAs were higher in the unligated teeth of strontium ranelate-treated groups, when compared to those of untreated groups (P < .05). At 30 days, the ligated teeth of the estrogen-deficient group exhibited lower TBA than the other groups (P < .05). There were no differences among groups regarding the number of TRAP-stained cells (P < .05). The strontium ranelate-treated groups exhibited lower expressions of OCN and RANKL than the untreated groups (P < .05). The estrogen-sufficient group presented higher staining for OPG than both treated and untreated estrogen-deficient groups (P < .05). CONCLUSIONS Strontium ranelate prevented ligature-induced BL in an estrogen-deficiency condition and, to a certain extent, increased TBA in the presence and absence of periodontal collapse in states of estrogen deficiency and estrogen sufficiency. Furthermore, strontium ranelate also affected the expression of bone markers, appearing to have acted predominantly as an anti-resorptive agent.
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Affiliation(s)
- Letícia Macedo Marins
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, SP, Brazil
| | - Marcelo Henrique Napimoga
- Faculdade São Leopoldo Mandic, Instituto São Leopoldo Mandic, Área de Imunologia, Campinas, SP, Brazil
| | - Fernando de Souza Malta
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, SP, Brazil
| | | | - Edson Parra Nani
- Faculdade São Leopoldo Mandic, Instituto São Leopoldo Mandic, Área de Imunologia, Campinas, SP, Brazil
| | | | | | - Poliana Mendes Duarte
- Dental Research Division, Department of Periodontology, Guarulhos University, Guarulhos, SP, Brazil.,Department of Periodontology, College of Dentistry, University of Florida, Gainesville, FL, USA
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Stavropoulos A, Bertl K, Pietschmann P, Pandis N, Schiødt M, Klinge B. The effect of antiresorptive drugs on implant therapy: Systematic review and meta-analysis. Clin Oral Implants Res 2019; 29 Suppl 18:54-92. [PMID: 30306695 DOI: 10.1111/clr.13282] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2018] [Indexed: 12/28/2022]
Abstract
OBJECTIVES A considerable portion of the adult population has received and/or is receiving treatment with antiresorptive drugs (ARDs). It is thus relevant to assess possible side effects of ARD intake in connection to various aspects of implant therapy. The aim of this study was to answer the focused question "In patients with systemic intake of ARDs, what is the outcome and complication rate of implant therapy including associated bone grafting procedures comparing to patients without systemic intake of ARDs?" MATERIALS AND METHODS Original studies fulfilled predefined inclusion criteria (e.g., case series, cohort studies, case-control studies, and controlled and/or randomized controlled clinical trials; retro- or prospective design; and ≥10 patients with systemic intake of ARDs). Various patient-, medication-, and intervention-related parameters [i.e., implant loss, grafting procedure complication/failure, peri-implant marginal bone levels/loss, medication-related osteonecrosis of the jaws (MRONJ), and peri-implantitis] were extracted, and meta-analyses and quality assessment were performed. RESULTS Twenty-four studies with bisphosphonate (BP) intake (mainly low dose for osteoporosis treatment) and seven studies on hormone replacement therapy (HRT), including ≥10 patients, and controls not taking the medication were identified. Furthermore, seven studies on MRONJ associated with implants were included. Meta-analyses based on four studies reporting on patient level and eight studies reporting on implant level showed no significant differences in terms of implant loss between patients on BPs (mainly low dose for osteoporosis treatment) and controls. Furthermore, low-dose BP intake did not compromise peri-implant marginal bone levels. Based on two studies, no negative effect of HRT was observed on the implant level, while HRT appeared to exert a marginally significant negative effect regarding implant survival on the patient level and regarding peri-implant marginal bone levels. Based on six studies reporting single-patient data, MRONJ in patients on BP for osteoporosis appeared in 70% of the cases >36 months after start of drug intake, while in patients with cancer, MRONJ appeared in 64% of the cases ≤36 months after first BP intake. CONCLUSION Low-dose oral BP intake for osteoporosis treatment, in general, does not compromise implant therapy, that is, patients on ARDs do not lose more implants nor get more implant-related complications/failures comparing to implant patients without BP intake. There is almost no information available on the possible effect on implant therapy of high-dose BPs or other widely used ARDs (e.g., denosumab), or on the success or safety of bone grafting procedures. Patients with high-dose ARD intake for management of malignancies, patients on oral BP over a longer period of time, and patients with comorbidities should be considered as high-risk patients for MRONJ.
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Affiliation(s)
- Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden
| | - Kristina Bertl
- Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden.,Division of Oral Surgery, School of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Peter Pietschmann
- Institute of Pathophysiology and Allergy Research, Center of Physiology and Pathophysiology, Medical University of Vienna, Vienna, Austria
| | - Nikolaos Pandis
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, Department of Orthodontics, University of Bern, Bern, Switzerland
| | - Morten Schiødt
- Department of Oral & Maxillofacial Surgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Björn Klinge
- Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden
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Rößler S, Heinemann C, Kruppke B, Wagner AS, Wenisch S, Wiesmann HP, Hanke T. Manipulation of osteoclastogenesis: Bioactive multiphasic silica/collagen composites and their effects of surface and degradation products. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:265-276. [PMID: 30274058 DOI: 10.1016/j.msec.2018.07.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 05/12/2018] [Accepted: 07/19/2018] [Indexed: 10/28/2022]
Abstract
The intent of the present study was to demonstrate that multiphasic silica/collagen xerogels are able to manipulate cellular processes. These xerogels were prepared by a sol-gel approach allowing the incorporation of mineral phases. The resulting nanocomposites are designed as biomaterial for bone regeneration. Human osteoclasts derived from peripheral blood mononuclear cells were cultured both indirectly and directly, either in presence of different xerogel types or on their surface, to investigate the factor with the main influence on osteoclastogenesis. To this end, the incorporation of a third phase to silica/collagen xerogels was used to affect osteoclastogenesis. In cell culture, ambient ion conditions controlled by both the degradation products of the xerogel and the bioactivity-dependent ion release and reprecipitation were shown to have the main effect on osteoclast specific enzyme tartrate-resistant acid phosphatase (TRAP) 5b. Late stage of osteoclastogenesis characterized by resorption was strongly dependent on the xerogels composition. Surface chemistry of the xerogels was displayed to play an important role in osteoclast resorption. Biphasic silica/collagen xerogels and triphasic xerogels with calcium carbonate offered widespread resorbed areas, whereas hydroxyapatite containing xerogels showed distinctly reduced resorption. The incorporation of strontium carbonate and phosphate, respectively, as third phase changed TRAP 5b activity dose-dependently and inhibited resorption within 21 days. Quantitative evaluation on osteoclast differentiation was carried out using biochemical methods (TRAP 5b, cathepsin K) and was supported by confocal laser scanning microscopy and scanning electron microscopy (SEM). Qualitative estimation of resorption was carried out by SEM.
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Affiliation(s)
- S Rößler
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technical University Dresden, Budapester Str. 27, D-01069 Dresden, Germany.
| | - C Heinemann
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technical University Dresden, Budapester Str. 27, D-01069 Dresden, Germany
| | - B Kruppke
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technical University Dresden, Budapester Str. 27, D-01069 Dresden, Germany
| | - A S Wagner
- Department of Veterinary Clinical Science, Small Animal Clinic c/o Institute of Veterinary-Anatomy, -Histology and -Embryology, University Giessen, Frankfurter Str. 98, D-35392 Giessen, Germany
| | - S Wenisch
- Department of Veterinary Clinical Science, Small Animal Clinic c/o Institute of Veterinary-Anatomy, -Histology and -Embryology, University Giessen, Frankfurter Str. 98, D-35392 Giessen, Germany
| | - H P Wiesmann
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technical University Dresden, Budapester Str. 27, D-01069 Dresden, Germany
| | - T Hanke
- Max Bergmann Center of Biomaterials and Institute of Materials Science, Technical University Dresden, Budapester Str. 27, D-01069 Dresden, Germany
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Scardueli CR, Bizelli-Silveira C, Marcantonio RAC, Marcantonio E, Stavropoulos A, Spin-Neto R. Systemic administration of strontium ranelate to enhance the osseointegration of implants: systematic review of animal studies. Int J Implant Dent 2018; 4:21. [PMID: 30014305 PMCID: PMC6047953 DOI: 10.1186/s40729-018-0132-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 04/23/2018] [Indexed: 12/31/2022] Open
Abstract
The literature states that Strontium (Sr) is able to simultaneously stimulate bone formation and suppress bone resorption. Recent animal studies suggest that the systemic administration of Sr, in the form of strontium ranelate (SRAN), would enhance the osseointegration of implants. The purpose of the present study was to undertake a systematic review on animal studies evaluating the systemic administration of Sr to enhance the osseointegration of titanium implants and the remodeling of bone grafts. The MEDLINE (PubMed) and Scopus bibliographic databases were searched from 1950 to October 2017 for reports on the use of systemic and non-radioactive Sr to enhance the osseointegration of titanium implants and the remodeling of bone grafts in animals. The search strategy was restricted to English language publications using the combined terms: "strontium" and "implant or graft or biomaterial or bone substitute". Five studies were included, all related to the systemic administration of Sr in the form SRAN, and its effects on osseointegration of titanium implants. No studies on the use of SRAN-based therapy to enhance the remodeling of bone grafts were found. The studies differed notably with respect to the study population (healthy female rats, healthy male rats, and female rats with induced osteoporosis) and SRAN dose (ranging from 500 to 1000 mg/kg/day). Results were diverse, but a tendency suggesting positive influence of systemic SRAN administration on the osseointegration of titanium implants was observed. No major side-effects due to strontium administration were reported. Systemic Sr administration, in the form of SRAN, seems to enhance peri-implant bone quality and implant osseointegration in animals, however, at a moderate extent. Further studies, evaluating both the effects of this drug on implant osseointegration and the risk/benefit of its use, are needed to provide a rationale of this therapeutic approach.
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Affiliation(s)
- Cassio Rocha Scardueli
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
- Department of Periodontology, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo Brazil
| | | | | | - Elcio Marcantonio
- Department of Periodontology, São Paulo State University (Unesp), School of Dentistry, Araraquara, São Paulo Brazil
| | - Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden
| | - Rubens Spin-Neto
- Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
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Strontium inhibits osteoclastogenesis by enhancing LRP6 and β-catenin-mediated OPG targeted by miR-181d-5p. J Cell Commun Signal 2018; 13:85-97. [PMID: 30009331 DOI: 10.1007/s12079-018-0478-y] [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: 12/11/2017] [Accepted: 06/29/2018] [Indexed: 12/27/2022] Open
Abstract
Strontium is a drug with the bone formation and anti-resorption effects on bone. The underlying mechanisms for the dual effect of strontium on bone metabolism, especially for the anti-resorption effects remain unknown. Thus, we aim to investigate the mechanisms of effects of strontium on osteoclastogenesis. Firstly, we found that strontium decreased the levels of important biomarkers of receptor activator of nuclear factor kappa-B ligand (RANKL) which induced osteoclast differentiation, indicating that strontium might directly inhibit osteoclast differentiation. Next, we revealed that strontium enhanced Low Density Lipoprotein Receptor-Related Protein 6 (LRP6)/β-catenin/osteoprotegerin (OPG) signaling pathway in MC3T3-E1 cells. The signaling pathway may negatively regulate osteoclastogenesis. Thus, strontium indirectly inhibited RANKL induced osteoclast differentiation. Finally, we revealed that OPG was targeted by miR-181d-5p as determined by luciferase reporter assay and downregulated by miR-181d-5p at both mRNA and protein levels as determined by western blot.
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33
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Mechanical and degradation property improvement in a biocompatible Mg-Ca-Sr alloy by thermomechanical processing. J Mech Behav Biomed Mater 2018; 80:285-292. [DOI: 10.1016/j.jmbbm.2018.02.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 11/07/2017] [Accepted: 02/01/2018] [Indexed: 01/10/2023]
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Percutaneous Injection of Strontium Containing Hydroxyapatite versus Polymethacrylate Plus Short-Segment Pedicle Screw Fixation for Traumatic A2- and A3/AO-Type Fractures in Adults. Adv Orthop 2018; 2018:6365472. [PMID: 29692935 PMCID: PMC5859844 DOI: 10.1155/2018/6365472] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/12/2017] [Accepted: 12/11/2017] [Indexed: 12/12/2022] Open
Abstract
Introduction Polymethacrylate (PMMA) is commonly used in vertebroplasty and balloon kyphoplasty, but its use has been associated with complications. This study tests three hypotheses: (1) whether strontium hydroxyapatite (Sr-HA) is equivalent to PMMA for restoring thoracolumbar vertebral body fractures, (2) whether the incidence of PMMA leakage is similar to that of Sr-HA leakage, and (3) whether Sr-HAis is resorbed and substituted by new vertebral bone. Materials and Methods Two age- and sex-matched groups received short percutaneous pedicle screw fixation plus PEEK implant (Kiva, VCF Treatment System, Benvenue Medical, Santa Clara, CA, USA) filled with either Sr-HA (Group A) or PMMA (Group B) after A2- and A3/AO-type thoracolumbar vertebral body fractures. The Visual Analog Scale (VAS) score and imaging parameters, which included segmental kyphosis angle (SKA), vertebral body height ratios (VBHr), spinal canal encroachment (SCE), bone cement leakage, and Sr-HA resorption, were compared between the two groups. Results The average follow-up was 28 months. No differences in VAS scores between Groups A and B were observed at baseline. Baseline back pain in both groups improved significantly three months postoperatively. Anterior, middle, and posterior VBHr did not differ between the two groups at any time point. SKA was improved insignificantly in both groups. SCE decreased insignificantly in both groups on 12-month follow-up using computed tomography (CT). PMMA leakage was observed in one patient, while no Sr-HA paste leakages occurred. Sr-HA resorption and replacement with vertebral bone were observed, and no new fractures were observed. Conclusions As all hypotheses were confirmed, the authors recommend the use of Sr-HA instead of PMMA in traumatic spine fractures, although more patients and longer follow-up will be needed to strengthen these results. This trial is registered with NCT03431519.
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Deng Y, Liu M, Chen X, Wang M, Li X, Xiao Y, Zhang X. Enhanced osteoinductivity of porous biphasic calcium phosphate ceramic beads with high content of strontium-incorporated calcium-deficient hydroxyapatite. J Mater Chem B 2018; 6:6572-6584. [DOI: 10.1039/c8tb01637b] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Further biomimicking natural bone and enhancing osteoinductivity to meet the requirements of regenerative medicine is the key development direction of biphasic calcium phosphate (BCP) ceramics.
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Affiliation(s)
- Yanglong Deng
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Minjun Liu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Menglu Wang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xiangfeng Li
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Yumei Xiao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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36
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Li J, Yang L, Guo X, Cui W, Yang S, Wang J, Qu Y, Shao Z, Xu S. Osteogenesis effects of strontium-substituted hydroxyapatite coatings on true bone ceramic surfaces in vitro and in vivo. Biomed Mater 2017; 13:015018. [PMID: 28862155 DOI: 10.1088/1748-605x/aa89af] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To develop bioactive bone graft materials that can induce rapid bone regeneration, a novel biomaterial was synthesized by coating true bone ceramic (TBC) substrates with strontium-substituted nano-hydroxyapatites (SrHA) (Sr concentrations of 0%, 10%, 40%, 100%) through a sol-gel dip-coating approach. All coated TBC scaffolds retained the inherent natural trabecular structure, porosity, compressive strength and simultaneously possessed a micro/nanotopography SrHA layer on the substrate surface. The dimension of the deposited crystal increased and the density of the deposited apatite particles became sparse with increasing Sr content, but a unique HA crystalline phase was observed under all conditions. The modified TBC scaffolds significantly enhanced the adhesion, proliferation, and osteogenic differentiation of MC3T3-E1 osteoblasts in vitro. Particularly, the Sr10-TBC group (10 mol% Sr2+ in apatite coating) revealed the highest osteogenic efficacy over the other groups. Three-dimensional CT imaging and histological evaluations on a bilateral critical-sized rabbit radial defect model for 12 weeks showed significant bone formation in the Sr10-TBC implants. The new bone area ratios of the Sr10-TBC group were significantly higher than that of the TBC group. Additionally, Sr10-TBC implants showed faster degradability compared with raw TBC implants during the 12 weeks of implantation. The results indicate that TBC modification with 10% SrHA coating stimulated osteogenesis and could be a promising biomaterial for future bone defect regeneration.
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Affiliation(s)
- Jingfeng Li
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan 430071, People's Republic of China
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Roczniak W, Brodziak-Dopierała B, Cipora E, Mitko K, Jakóbik-Kolon A, Konieczny M, Babuśka-Roczniak M. The Content of Structural and Trace Elements in the Knee Joint Tissues. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14121441. [PMID: 29168758 PMCID: PMC5750860 DOI: 10.3390/ijerph14121441] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 12/22/2022]
Abstract
Many elements are responsible for the balance in bone tissue, including those which constitute a substantial proportion of bone mass, i.e., calcium, phosphorus and magnesium, as well as minor elements such as strontium. In addition, toxic elements acquired via occupational and environmental exposure, e.g., Pb, are included in the basic bone tissue composition. The study objective was to determine the content of strontium, lead, calcium, phosphorus, sodium and magnesium in chosen components of the knee joint, i.e., tibia, femur and meniscus. The levels of Sr, Pb, Ca, P, Na and Mg were the highest in the tibia in both men and women, whereas the lowest in the meniscus. It should be noted that the levels of these elements were by far higher in the tibia and femur as compared to the meniscus. In the components of the knee joint, the level of strontium showed the greatest variation. Significant statistical differences were found between men and women only in the content of lead.
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Affiliation(s)
- Wojciech Roczniak
- Medical Institute, The Jan Grodek Higher Vocational State School, 21 Mickiewicza Str., 38-500 Sanok, Poland.
| | - Barbara Brodziak-Dopierała
- Department of Toxicology and Bioanalysis, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, 4 Jagiellonska Str., 41-200 Sosnowiec, Poland.
| | - Elżbieta Cipora
- Medical Institute, The Jan Grodek Higher Vocational State School, 21 Mickiewicza Str., 38-500 Sanok, Poland.
| | - Krzysztof Mitko
- The Laboratory of Water and Sewage Analyses, Central Mining Institute, place Gwarków 1, 40-166 Katowice, Poland.
| | - Agata Jakóbik-Kolon
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Str., 44-100 Gliwice, Poland.
| | - Magdalena Konieczny
- Medical Institute, The Jan Grodek Higher Vocational State School, 21 Mickiewicza Str., 38-500 Sanok, Poland.
| | - Magdalena Babuśka-Roczniak
- Medical Institute, The Jan Grodek Higher Vocational State School, 21 Mickiewicza Str., 38-500 Sanok, Poland.
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Huang YZ, Wang JJ, Huang YC, Wu CG, Zhang Y, Zhang CL, Bai L, Xie HQ, Li ZY, Deng L. Organic composite-mediated surface coating of human acellular bone matrix with strontium. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 29519420 DOI: 10.1016/j.msec.2017.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Acellular bone matrix (ACBM) provides an osteoconductive scaffold for bone repair, but its osteoinductivity is poor. Strontium (Sr) improves the osteoinductivity of bone implants. In this study, we developed an organic composite-mediated strontium coating strategy for ACBM scaffolds by using the ion chelating ability of carboxymethyl cellulose (CMC) and the surface adhesion ability of dopamine (DOPA). The organic coating composite, termed the CMC-DOPA-Sr composite, was synthesized under a mild condition, and its chemical structure and strontium ion chelating ability were then determined. After surface decoration, the physicochemical properties of the strontium-coated ACBM (ACBM-Sr) scaffolds were characterized, and their biocompatibility and osteoinductivity were determined in vitro and in vivo. The results showed that the CMC-DOPA-Sr composite facilitated strontium coating on the surface of ACBM scaffolds. The ACBM-Sr scaffolds possessed a sustained strontium ion release profile, exhibited good cytocompatibility, and enhanced the osteogenic differentiation of mesenchymal stem cells in vitro. Furthermore, the ACBM-Sr scaffolds showed good histocompatibility after subcutaneous implantation in nude mice. Taken together, this study provided a simple and mild strategy to realize strontium coating for ACBM scaffolds, which resulted in good biocompatibility and improved osteoinductivity.
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Affiliation(s)
- Yi-Zhou Huang
- Laboratory of Stem Cell and Tissue Engineering, State Key laboratory of biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 60041, China
| | - Jing-Jing Wang
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Yong-Can Huang
- Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Orthopaedic Research Center, Peking University Shenzhen Hospital, Shenzhen 518036, China; Shenzhen Key Laboratory of Spine Surgery, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China; Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Cheng-Guang Wu
- Laboratory of Stem Cell and Tissue Engineering, State Key laboratory of biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 60041, China
| | - Yi Zhang
- Laboratory of Stem Cell and Tissue Engineering, State Key laboratory of biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 60041, China
| | - Chao-Liang Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 60041, China
| | - Lin Bai
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hui-Qi Xie
- Laboratory of Stem Cell and Tissue Engineering, State Key laboratory of biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 60041, China
| | - Zhao-Yang Li
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China.
| | - Li Deng
- Laboratory of Stem Cell and Tissue Engineering, State Key laboratory of biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 60041, China.
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Masalskas BF, Martins Júnior W, Leoni GB, Faloni APDS, Marcaccini AM, Silva Sousa YTC, Castro-Raucci LMSD. Local delivery of strontium ranelate promotes regeneration of critical size bone defects filled with collagen sponge. J Biomed Mater Res A 2017; 106:333-341. [PMID: 28913909 DOI: 10.1002/jbm.a.36237] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/31/2017] [Accepted: 09/12/2017] [Indexed: 01/12/2023]
Abstract
The effect of local delivery of strontium ranelate (SR) on bone regeneration of critical size bone defects filled with collagen sponge was evaluated. Bone defects of 5 mm diameter created in rat calvaria were filled with collagen sponge (C); collagen sponge with 5 mM Sr2+ SR (C5SR) or collagen sponge with 50 mM Sr2+ SR (C50SR). After 2, 4, and 6 weeks, bone volume (BV), bone surface (BS), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular separation (Tb.Sp) were evaluated by computed microtomography. At 6 weeks, histological analysis was performed. Intragroup comparisons were made by the Friedman test, while comparisons between groups were made by Kruskal-Wallis test (α = 5%). All groups showed increased BV, BS, Tb.Th, and Tb.N over time, but only C50SR promoted the reduction of Tb.Sp (p < 0.05). No significant differences between groups were detected at weeks 2 and 4. However, C50SR showed the highest values of BV, BS, and Tb.Th at 6 weeks (p < 0.05). Histological analysis revealed connective tissue in C and C5SR and immature bone tissue in C50SR. Local delivery of SR 50 mM Sr2+ associated with collagen sponge increased and accelerated bone regeneration in critical bone defects. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 333-341, 2018.
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Affiliation(s)
| | - Walter Martins Júnior
- School of Dentistry, University of Ribeirao Preto, Ribeirao Preto, Sao Paulo, Brazil
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40
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Anti-inflammatory and anti-nociceptive effects of strontium ranelate on the zymosan-induced temporomandibular joint inflammatory hypernociception in rats depend on TNF-α inhibition. Pharmacol Rep 2017; 69:764-772. [DOI: 10.1016/j.pharep.2017.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 01/24/2017] [Accepted: 03/10/2017] [Indexed: 11/19/2022]
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Henriques Lourenço A, Neves N, Ribeiro-Machado C, Sousa SR, Lamghari M, Barrias CC, Trigo Cabral A, Barbosa MA, Ribeiro CC. Injectable hybrid system for strontium local delivery promotes bone regeneration in a rat critical-sized defect model. Sci Rep 2017; 7:5098. [PMID: 28698571 PMCID: PMC5506032 DOI: 10.1038/s41598-017-04866-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 05/22/2017] [Indexed: 12/11/2022] Open
Abstract
Strontium (Sr) has been described as having beneficial influence in bone strength and architecture. However, negative systemic effects have been reported on oral administration of Sr ranelate, leading to strict restrictions in clinical application. We hypothesized that local delivery of Sr improves osteogenesis without eliciting detrimental side effects. Therefore, the in vivo response to an injectable Sr-hybrid system composed of RGD-alginate hydrogel cross-linked in situ with Sr and reinforced with Sr-doped hydroxyapatite microspheres, was investigated. The system was injected in a critical-sized bone defect model and compared to a similar Sr-free material. Micro-CT results show a trend towards higher new bone formed in Sr-hybrid group and major histological differences were observed between groups. Higher cell invasion was detected at the center of the defect of Sr-hybrid group after 15 days with earlier bone formation. Higher material degradation with increase of collagen fibers and bone formation in the center of the defect after 60 days was observed as opposed to bone formation restricted to the periphery of the defect in the control. These histological findings support the evidence of an improved response with the Sr enriched material. Importantly, no alterations were observed in the Sr levels in systemic organs or serum.
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Affiliation(s)
- Ana Henriques Lourenço
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, s/n, 4200-465, Porto, Portugal
| | - Nuno Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,Faculdade de Medicina, Universidade do Porto, Serviço de Ortopedia, Alameda Prof. Hernâni Monteiro, 4200-319, Porto, Portugal
| | - Cláudia Ribeiro-Machado
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal
| | - Susana R Sousa
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,ISEP - Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015, Porto, Portugal
| | - Meriem Lamghari
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal
| | - Cristina C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal
| | - Abel Trigo Cabral
- Faculdade de Medicina, Universidade do Porto, Serviço de Ortopedia, Alameda Prof. Hernâni Monteiro, 4200-319, Porto, Portugal
| | - Mário A Barbosa
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal.,ICBAS - Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira n. 228, 4050-313, Porto, Portugal
| | - Cristina C Ribeiro
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal. .,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200 - 135, Porto, Portugal. .,ISEP - Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida 431, 4249-015, Porto, Portugal.
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42
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Wang G, Sui L, Gai P, Li G, Qi X, Jiang X. The efficacy and safety of vertebral fracture prevention therapies in post-menopausal osteoporosis treatment: Which therapies work best? a network meta-analysis. Bone Joint Res 2017; 6:452-463. [PMID: 28765269 PMCID: PMC5539309 DOI: 10.1302/2046-3758.67.bjr-2016-0292.r1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/03/2017] [Indexed: 01/07/2023] Open
Abstract
Objectives Osteoporosis has become an increasing concern for older people as it may potentially lead to osteoporotic fractures. This study is designed to assess the efficacy and safety of ten therapies for post-menopausal women using network meta-analysis. Methods We conducted a systematic search in several databases, including PubMed and Embase. A random-effects model was employed and results were assessed by the odds ratio (OR) and corresponding 95% confidence intervals (CI). Furthermore, with respect to each outcome, each intervention was ranked according to the surface under the cumulative ranking curve (SUCRA) value. Results With respect to preventing new vertebral fractures (NVF), all ten drugs outperformed placebo, and etidronate proved to be the most effective treatment (OR 0.24, 95% CI 0.14 to 0.39). In addition, zoledronic acid and parathyroid hormone ranked higher compared with the other drugs. With respect to preventing clinical vertebral fractures (CVF), zoledronic acid proved to be the most effective drug (OR = 0.25, 95% CI 0.08 to 0.92), with denosumab as a desirable second option (OR = 0.48, 95% CI 0.22 to 0.96), when both were compared with placebo. As for adverse events (AE) and severe adverse events (SAE), no significant difference was observed. According to SUCRA, etidronate ranked first in preventing CVF; parathyroid hormone and zoledronic acid ranked highly in preventing NVF and CVF. Raloxifene was safe with a high rank in preventing AEs and SAEs though performed unsatisfactorily in efficacy. Conclusions This study suggests that, taking efficacy and safety into account, parathyroid hormone and zoledronic acid had the highest probability of satisfactory performance in preventing osteoporotic fractures. Cite this article: G. Wang, L. Sui, P. Gai, G. Li, X. Qi, X. Jiang. The efficacy and safety of vertebral fracture prevention therapies in post-menopausal osteoporosis treatment: Which therapies work best? a network meta-analysis. Bone Joint Res 2017;6:452–463. DOI: 10.1302/2046-3758.67.BJR-2016-0292.R1.
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Affiliation(s)
- G Wang
- Department of Joint Surgery, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - L Sui
- Department of Joint Surgery, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - P Gai
- Department of Joint Surgery, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - G Li
- Department of Joint Surgery, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - X Qi
- Department of Joint Surgery, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - X Jiang
- Department of Joint Surgery, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
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43
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Cui X, Huang C, Zhang M, Ruan C, Peng S, Li L, Liu W, Wang T, Li B, Huang W, Rahaman MN, Lu WW, Pan H. Enhanced osteointegration of poly(methylmethacrylate) bone cements by incorporating strontium-containing borate bioactive glass. J R Soc Interface 2017; 14:20161057. [PMID: 28615491 PMCID: PMC5493788 DOI: 10.1098/rsif.2016.1057] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 05/23/2017] [Indexed: 11/12/2022] Open
Abstract
Although poly(methylmethacrylate) (PMMA) cements are widely used in orthopaedics, they have numerous drawbacks. This study aimed to improve their bioactivity and osseointegration by incorporating strontium-containing borate bioactive glass (SrBG) as the reinforcement phase and bioactive filler of PMMA cement. The prepared SrBG/PMMA composite cements showed significantly decreased polymerization temperature when compared with PMMA and retained properties of appropriate setting time and high mechanical strength. The bioactivity of SrBG/PMMA composite cements was confirmed in vitro, evidenced by ion release (Ca, P, B and Sr) from SrBG particles. The cellular responses of MC3T3-E1 cells in vitro demonstrated that SrBG incorporation could promote adhesion, migration, proliferation and collagen secretion of cells. Furthermore, our in vivo investigation revealed that SrBG/PMMA composite cements presented better osseointegration than PMMA bone cement. SrBG in the composite cement could stimulate new-bone formation around the interface between the composite cement and host bone at eight and 12 weeks post-implantation, whereas PMMA bone cement only stimulated development of an intervening connective tissue layer. Consequently, the SrBG/PMMA composite cement may be a better alternative to PMMA cement in clinical applications and has promising orthopaedic applications by minimal invasive surgery.
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Affiliation(s)
- Xu Cui
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Chengcheng Huang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Meng Zhang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Changshun Ruan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Songlin Peng
- Department of Spine Surgery, Shenzhen People's Hospital, Jinan University School of Medicine, Shenzhen 518020, People's Republic of China
| | - Li Li
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Worker's Hospital, Liuzhou 545005, People's Republic of China
| | - Wenlong Liu
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - Ting Wang
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, Department of Orthopaedics, The University of Hong Kong-Shenzhen Hospital, University of Hong Kong, Shenzhen, People's Republic of China
| | - Bing Li
- The Fourth Affiliated Hospital of Guangxi Medical University/Liu Zhou Worker's Hospital, Liuzhou 545005, People's Republic of China
| | - Wenhai Huang
- Institute of Bioengineering and Information Technology Materials, Tongji University, Shanghai 200092, People's Republic of China
| | - Mohamed N Rahaman
- Department of Materials Science and Engineering, Center for Biomedical Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409-0340, USA
| | - William W Lu
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Room 907, Lab Block, 21 Sassoon Road, Hong Kong SAR, People's Republic of China
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
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44
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Pilmane M, Salma-Ancane K, Loca D, Locs J, Berzina-Cimdina L. Strontium and strontium ranelate: Historical review of some of their functions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1222-1230. [PMID: 28575961 DOI: 10.1016/j.msec.2017.05.042] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 04/29/2017] [Accepted: 05/09/2017] [Indexed: 12/19/2022]
Abstract
The review covers historical and last decade's scientific literature on the biological and clinical role of strontium (Sr) and strontium ranelate (Sr RAN). It enrols the description of the main effects of Sr on supportive tissue, its proven and possible morphopathogenetical mechanisms and the interaction with the bone, and especially focuses on the Sr ability to inhibit osteoclasts and affect the programmed cell death. The main experimental and clinical experience regarding the Sr RAN influence in the treatment of osteoporosis and the search for correct doses is also highlighted. The review gives insight into the role of Sr/Sr RAN on stem cells, apoptosis, animal and clinical research.
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Affiliation(s)
- M Pilmane
- Institute of Anatomy and Anthropology, Riga Stradins University, 16 Dzirciema Str., Riga LV 1007, Latvia
| | - K Salma-Ancane
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia.
| | - D Loca
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
| | - J Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
| | - L Berzina-Cimdina
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
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45
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Shamsi M, Karimi M, Ghollasi M, Nezafati N, Shahrousvand M, Kamali M, Salimi A. In vitro proliferation and differentiation of human bone marrow mesenchymal stem cells into osteoblasts on nanocomposite scaffolds based on bioactive glass (64SiO 2-31CaO-5P 2O 5)-poly-l-lactic acid nanofibers fabricated by electrospinning method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:114-123. [PMID: 28575950 DOI: 10.1016/j.msec.2017.02.165] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/20/2017] [Accepted: 02/28/2017] [Indexed: 12/19/2022]
Abstract
Electrospinning method was employed for fabrication of SiO2-CaO-P2O5 bioactive glass (BG) nanofibers, poly-l-lactic acid (PLLA) nanofibers and nanocomposite scaffolds fabricated from as-prepared nanofibers. Characterization of the prepared nanofibers and scaffolds by XRD, FTIR, and SEM techniques revealed the formation of nanofibers with mean diameter of about 500nm and fully fibrous scaffolds with porous structure and interconnected pores. The growth, viability and proliferation of cultured human bone marrow mesenchymal stem cells in the fabricated nanofibers and bioactive glass-poly-l-lactic acid (BG-PLLA) nanocomposite scaffolds were studied using various biological assays including MTT, ALP activity, calcium deposit content, Alizarin red staining, and RT-PCR test. Based on the obtained results, incorporation of BG nanofibers in the nanocomposite scaffolds causes the better biological behavior of the scaffolds. In addition, three-dimensional and fibrous-porous structure of the scaffolds further contributes to their improved cell behavior compared to the components.
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Affiliation(s)
- M Shamsi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - M Karimi
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
| | - M Ghollasi
- Department of Cell and Molecular Biology, Faculty of Biological Science, Kharazmi University, Tehran, Iran
| | - N Nezafati
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran
| | - M Shahrousvand
- Department of Polymer Engineering & Color Technology, Amirkabir University of Technology, P.O. Box 15875/4413, Tehran, Iran
| | - M Kamali
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - A Salimi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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46
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Kourkoumelis N. Osteoporosis and strontium-substituted hydroxyapatites. ANNALS OF TRANSLATIONAL MEDICINE 2016; 4:S10. [PMID: 27867978 DOI: 10.21037/atm.2016.10.03] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Nikolaos Kourkoumelis
- Department of Medical Physics, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
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47
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Comparison study of different coatings on degradation performance and cell response of Mg-Sr alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:95-107. [PMID: 27612693 DOI: 10.1016/j.msec.2016.06.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/13/2016] [Accepted: 06/22/2016] [Indexed: 12/26/2022]
Abstract
To solve the problem of rapid degradation for magnesium-based implants, surface modification especially coating method is widely studied and showed the great potential for clinical application. However, as concerned to the further application and medical translation for biodegradable magnesium alloys, there are still lack of data and comparisons among different coatings on their degradation and biological properties. This work studied three commonly used coatings on Mg-Sr alloy, including micro-arc oxidation coating, electrodeposition coating and chemical conversion coating, and compared these coatings for requirements of favorable degradation and biological performances, how each of these coating systems has performed. Finally the mechanism for the discrepancy between these coatings is proposed. The results indicate that the micro-arc oxidation coating on Mg-Sr alloy exhibited the best corrosion resistance and cell response among these coatings, and is proved to be more suitable for the orthopedic application.
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48
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Subramani R, Elangomannan S, Louis K, Kannan S, Gopi D. Fabrication of Minerals Substituted Porous Hydroxyapaptite/Poly(3,4-ethylenedioxy pyrrole-co-3,4-ethylenedioxythiophene) Bilayer Coatings on Surgical Grade Stainless Steel and Its Antibacterial and Biological Activities for Orthopedic Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12404-21. [PMID: 27128574 DOI: 10.1021/acsami.6b01795] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Current strategies of bilayer technology have been aimed mainly at the enhancement of bioactivity, mechanical property and corrosion resistance. In the present investigation, the electropolymerization of poly(3,4-ethylenedioxypyrrole-co-3,4-ethylenedioxythiophene) (P(EDOP-co-EDOT)) with various feed ratios of EDOP/EDOT on surgical grade stainless steel (316L SS) and the successive electrodeposition of strontium (Sr(2+)), magnesium (Mg(2+)) and cerium (Ce(3+)) (with 0.05, 0.075 and 0.1 M Ce(3+)) substituted porous hydroxyapatite (M-HA) are successfully combined to produce the bioactive and corrosion resistance P(EDOP-co-EDOT)/M-HA bilayer coatings for orthopedic applications. The existence of as-developed coatings was confirmed by Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), proton nuclear magnetic resonance spectroscopy ((1)H NMR), high resolution scanning electron microscopy (HRSEM), energy dispersive X-ray analysis (EDAX) and atomic force microscopy (AFM). Also, the mechanical and thermal behavior of the bilayer coatings were analyzed. The corrosion resistance of the as-developed coatings and also the influence of copolymer (EDOP:EDOT) feed ratio were studied in Ringer's solution by electrochemical techniques. The as-obtained results are in accord with those obtained from the chemical analysis using inductively coupled plasma atomic emission spectrometry (ICP-AES). In addition, the antibacterial activity, in vitro bioactivity, cell viability and cell adhesion tests were performed to substantiate the biocompatibility of P(EDOP-co-EDOT)/M-HA bilayer coatings. On account of these investigations, it is proved that the as-developed bilayer coatings exhibit superior bioactivity and improved corrosion resistance over 316L SS, which is potential for orthopedic applications.
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Affiliation(s)
- Ramya Subramani
- Department of Chemistry, Periyar University , Salem 636 011, Tamilnadu, India
| | | | - Kavitha Louis
- Department of Physics, School of Basic and Applied Sciences, Central University of Tamilnadu , Thiruvarur 610 101, Tamilnadu, India
| | - Soundarapandian Kannan
- Proteomics and Molecular Cell Physiology Laboratory, Department of Zoology, Periyar University , Salem 636 011, Tamilnadu, India
| | - Dhanaraj Gopi
- Department of Chemistry, Periyar University , Salem 636 011, Tamilnadu, India
- Centre for Nanoscience and Nanotechnology, Periyar University , Salem 636 011, Taminadu, India
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49
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Shi C, Hu B, Guo L, Cao P, Tian Y, Ma J, Chen Y, Wu H, Hu J, Deng L, Zhang Y, Yuan W. Strontium Ranelate Reduces the Fracture Incidence in a Growing Mouse Model of Osteogenesis Imperfecta. J Bone Miner Res 2016; 31:1003-14. [PMID: 26679066 DOI: 10.1002/jbmr.2770] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 11/08/2015] [Accepted: 12/15/2015] [Indexed: 11/08/2022]
Abstract
Osteogenesis imperfecta (OI) is a genetic bone dysplasia characterized by brittle bones with increased fracture risk. Although current treatment options to improve bone strength in OI focus on antiresorptive bisphosphonates, controlled clinical trials suggest they have an equivocal effect on reducing fracture risk. Strontium ranelate (SrR) is a promising therapy with a dual mode of action that is capable of simultaneously maintaining bone formation and reducing bone resorption, and may be beneficial for the treatment of OI. In this study, SrR therapy was investigated to assess its effects on fracture frequency and bone mass and strength in an animal model of OI, the oim/oim mouse. Three-week-old oim/oim and wt/wt mice were treated with either SrR or vehicle (Veh) for 11 weeks. After treatment, the average number of fractures sustained by SrR-treated oim/oim mice was significantly reduced compared to Veh-treated oim/oim mice. Micro-computed tomographic (μCT) analyses of femurs showed that both trabecular and cortical bone mass were significantly improved with SrR treatment in both genotypes. SrR significantly inhibited bone resorption, whereas bone formation indices were maintained. Biomechanical testing revealed improved bone structural properties in both oim/oim and wild-type (wt/wt) mice under the treatment, whereas no significant effects on bone brittleness and material quality were observed. In conclusion, SrR was able to effectively reduce fractures in oim/oim mice by improving bone mass and strength and thus represents a potential therapy for the treatment of pediatric OI. © 2015 American Society for Bone and Mineral Research.
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Affiliation(s)
- Changgui Shi
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Bo Hu
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Lei Guo
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Orthopaedics and Traumatology, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Peng Cao
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Ye Tian
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Jun Ma
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Yuanyuan Chen
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Huiqiao Wu
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Jinquan Hu
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Lianfu Deng
- Shanghai Key Laboratory for Bone and Joint Diseases, Shanghai Institute of Orthopaedics and Traumatology, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Ying Zhang
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Wen Yuan
- Department of Orthopaedics, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
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50
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Nair BP, Sindhu M, Nair PD. Polycaprolactone-laponite composite scaffold releasing strontium ranelate for bone tissue engineering applications. Colloids Surf B Biointerfaces 2016; 143:423-430. [PMID: 27037779 DOI: 10.1016/j.colsurfb.2016.03.033] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 01/16/2016] [Accepted: 03/10/2016] [Indexed: 02/01/2023]
Abstract
We report polycaprolactone-laponite composite scaffold for the controlled release of strontium ranelate (SRA), a drug for osteoporosis. Laponite-SRA complex with electrostatic interaction between the drug and laponite was obtained through an aqueous phase reaction. Structural evaluation verified complexation of the bulky SRA molecules with the negatively charged laponite tactoid surfaces, leading to extended ordering of the tactoids, leaving behind the interlayer spacing of the laponite unchanged. The laponite-SRA complex was solution blended with polycaprolactone to obtain composite scaffolds. The strategy was found improving the dispersibility of laponite in PCL due to partial organomodification imparted through interaction with the SRA. The composite scaffolds with varying laponite-SRA complex content of 3-12wt% were evaluated in vitro using human osteosarcoma cells. It was confirmed that an optimum composition of the scaffold with 3wt% laponite-SRA complex loading would be ideal for obtaining enhanced ALP activity, by maintaining cell viability.
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Affiliation(s)
- Bindu P Nair
- Division of Tissue Engineering and Regeneration Technologies, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695012, Kerala, India; Department of Chemistry, Mahatma Gandhi College, Thiruvananthapuram 695004, Kerala, India.
| | - Megha Sindhu
- Division of Tissue Engineering and Regeneration Technologies, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695012, Kerala, India
| | - Prabha D Nair
- Division of Tissue Engineering and Regeneration Technologies, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram 695012, Kerala, India.
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