1
|
Improving the Endoprosthesis Design and the Postoperative Therapy as a Means of Reducing Complications Risks after Total Hip Arthroplasty. LUBRICANTS 2022. [DOI: 10.3390/lubricants10030038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
One of the most high-tech, efficient and reliable surgical procedures is Total Hip Arthroplasty (THA). Due to the increase in average life expectancy, it is especially relevant for older people suffering from chronic joint disease, allowing them to return to an active lifestyle. However, the rejuvenation of such a severe joint disease as osteoarthritis requires the search for new solutions that increase the lifespan of a Total Hip Replacement (THR). Current trends in the development of this area are primarily focused on the creation of new materials used in THR and methods for their processing that meet the requirements of biocompatibility, long-term strength, wear resistance and the absence of an immune system response aimed at rejection. This study is devoted to the substantiation of one of the possible approaches to increase the reliability and durability of THR, based on the improvement of the implant design and postoperative rehabilitation technology, potentially reducing the risk of complications in the postoperative period.
Collapse
|
2
|
Wang L, Wang C, Wu S, Fan Y, Li X. Influence of the mechanical properties of biomaterials on degradability, cell behaviors and signaling pathways: current progress and challenges. Biomater Sci 2020; 8:2714-2733. [DOI: 10.1039/d0bm00269k] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We have clarified the influence of the mechanical properties of biomaterials on degradability and cell response, and also mechanical design targets and approaches.
Collapse
Affiliation(s)
- Lu Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Cunyang Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Shuai Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education
- School of Biological Science and Medical Engineering
- Beihang University
- Beijing 100083
- China
| |
Collapse
|
3
|
Marin E, Adachi T, Zanocco M, Boschetto F, Rondinella A, Zhu W, Somekawa S, Ashida R, Bock RM, McEntire BJ, Bal BS, Mazda O, Pezzotti G. Enhanced bioactivity of Si 3N 4 through trench-patterning and back-filling with Bioglass®. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 106:110278. [PMID: 31753392 DOI: 10.1016/j.msec.2019.110278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 09/18/2019] [Accepted: 10/05/2019] [Indexed: 11/18/2022]
Abstract
Using a simple and innovative sandblasting process, disks of monolithic biomedical silicon nitride (β-Si3N4) were texturized with a matrix of regular, discrete square trenches with a total depth in the range of hundreds of microns. The process consisted of sandblasting Si3N4 substrates through a stainless-steel wire-mesh (150 or 200 μm) using abrasive silicon carbide powders (α-SiC, ∼40 μm) under 1,034 kPa (150 psi) of gas pressure. The depth of the porosities could be controlled varying both the treatment time and the distance from the surface. Part of the samples were then filled with 45S5 Bioglass® powders to improve the osteointegration and stimulate the production of bone tissue. Due to the increased macroscopic and microscopic roughness, biological testing using human osteosarcoma cells (SaOS-2) showed improved cell proliferation and greater production of both mineral (hydroxyapatite) and organic (collagen) phases on the patterned surfaces compared to untreated β-Si3N4 or to the biomedical titanium control samples. Both of these effects were further enhanced when the porosities were filled with Bioglass®.
Collapse
Affiliation(s)
- Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan; Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Tetsuya Adachi
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Matteo Zanocco
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan
| | - Francesco Boschetto
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan
| | - Alfredo Rondinella
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan
| | - Wenliang Zhu
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan
| | - Shota Somekawa
- Shinsei, Shijohei Kawanishi Rikobo, Kyoto, 610-0101, Japan
| | - Ryutaro Ashida
- Shinsei, Shijohei Kawanishi Rikobo, Kyoto, 610-0101, Japan
| | - Ryan M Bock
- SINTX Corporation, Salt Lake City, UT, 84119, USA
| | | | - B Sonny Bal
- SINTX Corporation, Salt Lake City, UT, 84119, USA; Department of Orthopaedic Surgery, University of Missouri, Columbia, MO, USA
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine Kamigyo-ku, 465 Kajii-cho, Kawaramachi dori, Kyoto, 602-0841, Japan
| | - Giuseppe Pezzotti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585, Kyoto, Japan; Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine Kamigyo-ku, 465 Kajii-cho, Kawaramachi dori, Kyoto, 602-0841, Japan; Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan; The Center for Advanced Medical Engineering and Informatics, Osaka University, Yamadaoka, Suita, Osaka, 565-0871, Japan
| |
Collapse
|
4
|
Moura CEB, Silva NB, Sa JC, Cavalcanti GB, de Medeiros SRB, Rocha HAO, Papa PC, Alves C. MC3T3-E1 Cells Behavior on Surfaces Bombarded by Argon Ions in Planar Cathode Discharge. Artif Organs 2015; 40:497-504. [DOI: 10.1111/aor.12597] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | | | - Juliana Carvalho Sa
- Department of Mechanical Engineering; Federal University of Rio Grande do Norte; Natal RN Brazil
| | - Geraldo Barroso Cavalcanti
- Department of Clinical and Toxicological Analysis; Federal University of Rio Grande do Norte; Natal RN Brazil
| | | | | | | | - Clodomiro Alves
- Department of Mechanical Engineering; Federal University of Rio Grande do Norte; Natal RN Brazil
| |
Collapse
|
5
|
Sowa M, Piotrowska M, Widziołek M, Dercz G, Tylko G, Gorewoda T, Osyczka AM, Simka W. Bioactivity of coatings formed on Ti–13Nb–13Zr alloy using plasma electrolytic oxidation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:159-173. [DOI: 10.1016/j.msec.2014.12.073] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 12/09/2014] [Accepted: 12/20/2014] [Indexed: 01/07/2023]
|
6
|
Serafim A, Mallet R, Pascaretti-Grizon F, Stancu IC, Chappard D. Osteoblast-like cell behavior on porous scaffolds based on poly(styrene) fibers. BIOMED RESEARCH INTERNATIONAL 2014; 2014:609319. [PMID: 25045688 PMCID: PMC4089841 DOI: 10.1155/2014/609319] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/03/2014] [Indexed: 02/06/2023]
Abstract
Scaffolds of nonresorbable biomaterials can represent an interesting alternative for replacing large bone defects in some particular clinical cases with massive bone loss. Poly(styrene) microfibers were prepared by a dry spinning method. They were partially melted to provide 3D porous scaffolds. The quality of the material was assessed by Raman spectroscopy. Surface roughness was determined by atomic force microscopy and vertical interference microscopy. Saos-2 osteoblast-like cells were seeded on the surface of the fibers and left to proliferate. Cell morphology, evaluated by scanning electron microscopy, revealed that they can spread and elongate on the rough microfiber surface. Porous 3D scaffolds made of nonresorbable poly(styrene) fibers are cytocompatible biomaterials mimicking allogenic bone trabeculae and allowing the growth and development of osteoblast-like cells in vitro.
Collapse
Affiliation(s)
- Andrada Serafim
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 149 Calea Victoriei, Sector 1, 010072 Bucharest, Romania
| | - Romain Mallet
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LHEA, IRIS-IBS Institut de Biologie en Santé, LUNAM Université, 49933 Angers Cedex, France
| | - Florence Pascaretti-Grizon
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LHEA, IRIS-IBS Institut de Biologie en Santé, LUNAM Université, 49933 Angers Cedex, France
| | - Izabela-Cristina Stancu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 149 Calea Victoriei, Sector 1, 010072 Bucharest, Romania
| | - Daniel Chappard
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux-LHEA, IRIS-IBS Institut de Biologie en Santé, LUNAM Université, 49933 Angers Cedex, France
| |
Collapse
|
7
|
Doyle H, Lohfeld S, McHugh P. Predicting the elastic properties of selective laser sintered PCL/β-TCP bone scaffold materials using computational modelling. Ann Biomed Eng 2013; 42:661-77. [PMID: 24057867 DOI: 10.1007/s10439-013-0913-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 09/12/2013] [Indexed: 11/26/2022]
Abstract
This study assesses the ability of finite element (FE) models to capture the mechanical behaviour of sintered orthopaedic scaffold materials. Individual scaffold struts were fabricated from a 50:50 wt% poly-ε-caprolactone (PCL)/β-tricalcium phosphate (β-TCP) blend, using selective laser sintering. The tensile elastic modulus of single struts was determined experimentally. High resolution FE models of single struts were generated from micro-CT scans (28.8 μm resolution) and an effective strut elastic modulus was calculated from tensile loading simulations. Three material assignment methods were employed: (1) homogeneous PCL elastic constants, (2) composite PCL/β-TCP elastic constants based on rule of mixtures, and (3) heterogeneous distribution of micromechanically-determined elastic constants. In comparison with experimental results, the use of homogeneous PCL properties gave a good estimate of strut modulus; however it is not sufficiently representative of the real material as it neglects the β-TCP phase. The rule of mixtures method significantly overestimated strut modulus, while there was no significant difference between strut modulus evaluated using the micromechanically-determined elastic constants and experimentally evaluated strut modulus. These results indicate that the multi-scale approach of linking micromechanical modelling of the sintered scaffold material with macroscale modelling gives an accurate prediction of the mechanical behaviour of the sintered structure.
Collapse
Affiliation(s)
- Heather Doyle
- Biomechanics Research Centre (BMEC), Mechanical and Biomedical Engineering, College of Engineering and Informatics, National University of Ireland Galway, Galway, Ireland,
| | | | | |
Collapse
|
8
|
Jahani M, Genever PG, Patton RJ, Ahwal F, Fagan MJ. The effect of osteocyte apoptosis on signalling in the osteocyte and bone lining cell network: a computer simulation. J Biomech 2012; 45:2876-83. [PMID: 23040883 DOI: 10.1016/j.jbiomech.2012.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 07/18/2012] [Accepted: 08/09/2012] [Indexed: 02/03/2023]
Abstract
Osteocytes play a critical role in the regulation of bone remodelling by translating strain due to mechanical loading into biochemical signals transmitted through the interconnecting lacuno-canalicular network to bone lining cells (BLCs) on the bone surface. This work aims to examine the effects of disruption of that intercellular communication by simulation of osteocyte apoptosis in the bone matrix. A model of a uniformly distributed osteocyte network has been developed that simulates the signalling through the network to the BLCs based on strain level. Bi-directional and asymmetric communication between neighbouring osteocytes and BLCs is included. The effect of osteocyte apoptosis is examined by preventing signalling at and through the affected cells. The simulation shows that apoptosis of only 3% of the osteocyte cells leads to a significant reduction in the peak signal at the BLCs. Furthermore, experiments with the model confirm how important the location and density of the apoptotic osteocytes are to the signalling received at the bone surface. With 5% and 9% osteocyte apoptosis, the mean peak BLC levels were reduced by 25% and 37% respectively. Such a significant reduction in the signal at the BLCs may explain a possible mechanism that leads to the increased remodelling and eventual bone loss observed with osteoporosis. More generally, it provides a unique framework for a broader exploration of the role of osteocyte and bi-directional and asymmetric cell-cell communication in mechanotransduction, and the effects of disruption to that communication.
Collapse
Affiliation(s)
- Masoumeh Jahani
- Department of Engineering, University of Hull, Hull, HU6 7RX, UK.
| | | | | | | | | |
Collapse
|
9
|
Dumas V, Ducharne B, Perrier A, Fournier C, Guignandon A, Thomas M, Peyroche S, Guyomar D, Vico L, Rattner A. Extracellular matrix produced by osteoblasts cultured under low-magnitude, high-frequency stimulation is favourable to osteogenic differentiation of mesenchymal stem cells. Calcif Tissue Int 2010; 87:351-64. [PMID: 20582583 DOI: 10.1007/s00223-010-9394-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 06/07/2010] [Indexed: 01/28/2023]
Abstract
The effects of low-magnitude, high-frequency (LMHF) mechanical stimulation on osteoblastic cells are poorly understood. We have developed a system that generates very small (15-40 με), high-frequency (400 Hz, sine) deformations on osteoblast cultures (MC3T3-E1). We investigated the effects of these LMHF stimulations mainly on extracellular matrix (ECM) synthesis. The functional properties of this ECM after decellularization were evaluated on C3H10T1/2 mesenchymal stem cells (MSCs). LMHF stimulations were applied 20 min once daily for 1, 3, or 7 days in MC3T3-E1 culture (1, 3, or 7 dLMHF). Cell number and viability were not affected after 3 or 7 dLMHF. Osteoblast response to LMHF was assessed by an increase in nitric oxide secretion, alteration of the cytoskeleton, and focal contacts. mRNA expression for fibronectin, osteopontin, bone sialoprotein, and type I collagen in LMHF cultures were 1.8-, 1.6-, 1.5-, and 1.7-fold higher than controls, respectively (P < 0.05). In terms of protein, osteopontin levels were increased after 3 dLMHF and ECM organization was altered as shown by fibronectin topology after 7 dLMHF. After decellularization, 7 dLMHF-ECM or control ECM was reseeded with MSCs. Seven dLMHF-ECM improved early events such as cell attachment (2 h) and focal contact adhesion (6 h) and, later (16 h), modified MSC morphological parameters. After 5 days in multipotential medium, gene-expression changes indicated that 7 dLMHF-ECM promoted the expression of osteoblast markers at the expense of adipogenic marker. LMHF stimulations of osteoblasts are therefore efficient and sufficient to generate osteogenic matrix.
Collapse
|
10
|
Sanz-Herrera JA, Doblaré M, García-Aznar JM. Scaffold microarchitecture determines internal bone directional growth structure: a numerical study. J Biomech 2010; 43:2480-6. [PMID: 20542275 DOI: 10.1016/j.jbiomech.2010.05.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 05/04/2010] [Accepted: 05/24/2010] [Indexed: 02/06/2023]
Abstract
A number of successful results have been reported in bone tissue engineering, although the routine clinical practice has not been reached so far. One of the reasons is the poor understanding of the role of each scaffold design parameter in its functional performance, which yields an uncertain outcome of each clinical application. Specifically, the role of internal scaffold microarchitectural shape on the regeneration rate and distribution of newly formed bone is still unknown. This work is focused on the in-silico determination of the role of scaffold microstructural anisotropy in bone tissue regeneration. A multiscale approach of the problem is established distinguishing between macroscopic region domain (bone organ and scaffold) and microscopic domain (scaffold microstructure). Results show that, once the scaffold microstructure is properly interconnected and the porosity is sufficiently high, similar rates of bone regeneration are found. However, the main conclusion of the work is that initial scaffold microstructural anisotropy has important consequences since it determines the spatial distribution of the newly formed tissue.
Collapse
Affiliation(s)
- J A Sanz-Herrera
- Group of Structural Mechanics and Materials Modelling, Aragón Institute of Engineering Research (I3A), University of Zaragoza, C/María de Luna 5, Agustín de Betancourt Building, Zaragoza, Spain.
| | | | | |
Collapse
|
11
|
Dynamic cell culturing and its application to micropatterned, elastin-like protein-modified poly(N-isopropylacrylamide) scaffolds. Biomaterials 2009; 30:5417-26. [DOI: 10.1016/j.biomaterials.2009.06.044] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2009] [Accepted: 06/18/2009] [Indexed: 12/13/2022]
|
12
|
Bone ingrowth on the surface of endosseous implants. Part 2: Theoretical and numerical analysis. J Theor Biol 2009; 260:13-26. [DOI: 10.1016/j.jtbi.2009.05.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2008] [Revised: 05/21/2009] [Accepted: 05/24/2009] [Indexed: 11/19/2022]
|
13
|
Palard M, Combes J, Champion E, Foucaud S, Rattner A, Bernache-Assollant D. Effect of silicon content on the sintering and biological behaviour of Ca10(PO4)(6-x)(SiO4)x(OH)(2-x) ceramics. Acta Biomater 2009; 5:1223-32. [PMID: 19036652 DOI: 10.1016/j.actbio.2008.10.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Revised: 10/07/2008] [Accepted: 10/20/2008] [Indexed: 11/16/2022]
Abstract
Silicated hydroxyapatite powders (Ca10(PO4)(6-x)(SiO4)x(OH)(2-x); Si(x)HA) were synthesized using a wet precipitation method. The sintering of Si(x)HA ceramics with 0 < or = x < or = 1 was investigated. For 0 < or = x < or = 0.5, the sintering rate and grain growth decreased slightly with the amount of silicate. For larger amounts, the sintering behaviour differed with the formation of secondary phases before total densification. Sintering parameters (temperature and time) were adjusted to each composition to produce dense materials having similar microstructure without formation of these secondary phases. Dense ceramics made of pure hydroxyapatite and Si(x)HA containing various amounts of silicate (up to x = 0.6) were biologically tested in vitro with human osteoblast-like cells. The proliferation of cells on the surface of the ceramics increased up to 5 days of culture, indicating that the materials were biocompatible. However, the silicon content did not influence the cell proliferation.
Collapse
|
14
|
Kokkinos PA, Zarkadis IK, Panidis TT, Deligianni DD. Estimation of hydrodynamic shear stresses developed on human osteoblasts cultured on Ti-6Al-4V and strained by four point bending. Effects of mechanical loading to specific gene expression. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:655-665. [PMID: 18941870 DOI: 10.1007/s10856-008-3602-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2008] [Accepted: 09/23/2008] [Indexed: 05/26/2023]
Abstract
The aim of the present investigation was to study the effects of mechanical strain on the orthopedic biomaterial Ti-6Al-4V-osteoblast interface, using an in vitro model. Homogeneous strain was applied to Human Bone Marrow derived Osteoblasts (HBMDOs) cultured on Ti-6Al-4V, at levels which are considered physiological, by a four-point bending mechanostimulatory system. A simple model for the estimation of maximum hydrodynamic shear stresses developed on cell culture layer and induced by nutrient medium flow during mechanical loading, as a function of the geometry of the culture plate and the load characteristics, is proposed. Shear stresses were lower than those which can elicit cell response. Mechanical loading was found that contributes to the regulation of osteoblast differentiation by influencing the expression of the osteoblast-specific transcription factor Cbfa1, both at the mRNA and protein level, and also the osteocalcin expression, whereas osteopontin gene expression was unaffected by mechanical loading at all experimental conditions.
Collapse
Affiliation(s)
- Petros A Kokkinos
- Biomedical Engineering Laboratory, Department of Mechanical Engineering and Aeronautics, University of Patras, Rion, 26500, Patra, Greece
| | | | | | | |
Collapse
|
15
|
Andrade AL, Valério P, de Goes AM, de Fátima Leite M, Domingues RZ. Influence of recovering collagen with bioactive glass on osteoblast behavior. J Biomed Mater Res B Appl Biomater 2007; 83:481-9. [PMID: 17443669 DOI: 10.1002/jbm.b.30820] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Bioactive ceramics have interesting properties from the biological standpoint, but their effects on cellular events remain partially unknown. In the current work, we investigated cellular viability, proliferation, and metabolic activity of rat primary osteoblasts in contact with four different samples: type I collagen, bioactive glass-coated collagen (GC), and both samples submitted to immersion for 5 days in a simulated body fluid. The bioactive glass coating was obtained from a sol-gel process. The cell viability, the alkaline phosphate, the collagen secretion, and the nitric oxide production by osteoblast were measured after 72 h of incubation in the presence of the samples. The GC that was immersed for 5 days in a simulated body fluid solution showed an increase in osteoblast viability and proliferation when it was compared with control and the other samples.
Collapse
Affiliation(s)
- Angela Leão Andrade
- Department of Chemistry, ICEX, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Av. Antônio Carlos, 6627, CEP 31270-901 Brazil
| | | | | | | | | |
Collapse
|