1
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Yotsova R, Peev S. Biological Properties and Medical Applications of Carbonate Apatite: A Systematic Review. Pharmaceutics 2024; 16:291. [PMID: 38399345 PMCID: PMC10892468 DOI: 10.3390/pharmaceutics16020291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/10/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Bone defects represent an everyday challenge for clinicians who work in the fields of orthopedic surgery, maxillofacial and oral surgery, otorhinolaryngology, and dental implantology. Various bone substitutes have been developed and utilized, according to the needs of bone reconstructive surgery. Carbonate apatite has gained popularity in recent years, due to its excellent tissue behavior and osteoconductive potential. This systematic review aims to evaluate the role of carbonate apatite in bone reconstructive surgery and tissue engineering, analyze its advantages and limitations, and suggest further directions for research and development. The Web of Science, PubMed, and Scopus electronic databases were searched for relevant review articles, published from January 2014 to 21 July 2023. The study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Eighteen studies were included in the present review. The biological properties and medical applications of carbonate apatite (CO3Ap) are discussed and evaluated. The majority of articles demonstrated that CO3Ap has excellent biocompatibility, resorbability, and osteoconductivity. Furthermore, it resembles bone tissue and causes minimal immunological reactions. Therefore, it may be successfully utilized in various medical applications, such as bone substitution, scaffolding, implant coating, drug delivery, and tissue engineering.
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Affiliation(s)
- Ralitsa Yotsova
- Department of Oral Surgery, Faculty of Dental Medicine, Medical University of Varna, bul. Tsar Osvoboditel 84, 9002 Varna, Bulgaria
| | - Stefan Peev
- Department of Periodontology and Dental Implantology, Faculty of Dental Medicine, Medical University of Varna, bul. Tsar Osvoboditel 84, 9002 Varna, Bulgaria;
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2
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Jolic M, Ruscsák K, Emanuelsson L, Norlindh B, Thomsen P, Shah FA, Palmquist A. Leptin receptor gene deficiency minimally affects osseointegration in rats. Sci Rep 2023; 13:15631. [PMID: 37730735 PMCID: PMC10511412 DOI: 10.1038/s41598-023-42379-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/09/2023] [Indexed: 09/22/2023] Open
Abstract
Metabolic syndrome represents a cluster of conditions such as obesity, hyperglycaemia, dyslipidaemia, and hypertension that can lead to type 2 diabetes mellitus and/or cardiovascular disease. Here, we investigated the influence of obesity and hyperglycaemia on osseointegration using a novel, leptin receptor-deficient animal model, the Lund MetS rat. Machined titanium implants were installed in the tibias of animals with normal leptin receptor (LepR+/+) and those harbouring congenic leptin receptor deficiency (LepR-/-) and were left to heal for 28 days. Extensive evaluation of osseointegration was performed using removal torque measurements, X-ray micro-computed tomography, quantitative backscattered electron imaging, Raman spectroscopy, gene expression analysis, qualitative histology, and histomorphometry. Here, we found comparable osseointegration potential at 28 days following implant placement in LepR-/- and LepR+/+ rats. However, the low bone volume within the implant threads, higher bone-to-implant contact, and comparable biomechanical stability of the implants point towards changed bone formation and/or remodelling in LepR-/- rats. These findings are corroborated by differences in the carbonate-to-phosphate ratio of native bone measured using Raman spectroscopy. Observations of hypermineralised cartilage islands and increased mineralisation heterogeneity in native bone confirm the delayed skeletal development of LepR-/- rats. Gene expression analyses reveal comparable patterns between LepR-/- and LepR+/+ animals, suggesting that peri-implant bone has reached equilibrium in healing and/or remodelling between the animal groups.
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Affiliation(s)
- Martina Jolic
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Krisztina Ruscsák
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Lena Emanuelsson
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Birgitta Norlindh
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Furqan A Shah
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.
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3
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Shah FA. High-resolution Raman spectroscopy reveals compositional differences between pigmented incisor enamel and unpigmented molar enamel in Rattus norvegicus. Sci Rep 2023; 13:12301. [PMID: 37516744 PMCID: PMC10387050 DOI: 10.1038/s41598-023-38792-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/14/2023] [Indexed: 07/31/2023] Open
Abstract
Dental enamel is a peculiar biological tissue devoid of any self-renewal capacity as opposed to bone. Thus, a thorough understanding of enamel composition is essential to develop novel strategies for dental enamel repair. While the mineral found in bone and dental enamel is generally viewed as the biologically-produced equivalent of hydroxy(l)apatite, the formation of these bioapatites is controlled by different organic matrix frameworks-mainly type-I collagen in bone and amelogenin in enamel. In lower vertebrates, such as rodents, two distinct types of enamel are produced. Iron-containing pigmented enamel protects the continuously growing incisor teeth while magnesium-rich unpigmented enamel covers the molar teeth. Using high-resolution Raman spectroscopy, scanning electron microscopy, and energy dispersive X-ray spectroscopy, this work explores the differences in acid phosphate (HPO42-), carbonate (CO32-), hydroxyl (OH-), iron, and magnesium content of pigmented incisor enamel and unpigmented molar enamel of Sprague Dawley rats. Bundles of hydroxy(l)apatite nanowires comprise the enamel prisms, where prisms in pigmented enamel are wider and longer than those in unpigmented molars. In contrast to magnesium-rich unpigmented enamel, higher mineral crystallinity, and higher HPO42- and OH- levels are hallmark features of iron-rich pigmented enamel. Furthermore, the apparent absence of iron oxides or oxy(hydroxides) indicates that iron is introduced into the apatite lattice at the expense of calcium, albeit in amounts that do not alter the Raman signatures of the PO43- internal modes. Compositional idiosyncrasies of iron-rich pigmented and nominally iron-free unpigmented enamel offer new insights into enamel biomineralisation supporting the notion that, in rodents, ameloblast function differs significantly between the incisors and the molars.
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Affiliation(s)
- Furqan A Shah
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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4
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Yan Y, Fang Y, Verma V, Li J, Wang Y, Yang Y, Chen F, Zhu R, Wu S, Hooper TJN, White T. Phase evolution and arsenic immobilization of arsenate-bearing amorphous calcium phosphate. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130973. [PMID: 36860081 DOI: 10.1016/j.jhazmat.2023.130973] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
The formation of As(V) substituted hydroxylapatite (HAP) has a vital influence on the fate of As(V) in the environment. However, despite growing evidence showing that HAP crystallizes in vivo and in vitro with amorphous calcium phosphate (ACP) as a precursor, a knowledge gap exists concerning the transformation from arsenate-bearing ACP (AsACP) to arsenate-bearing HAP (AsHAP). Here we synthesized AsACP nano-particles with varied As contents and investigated the arsenic incorporation during their phase evolution. The phase evolution results showed that the transformation process of AsACP to AsHAP could be divided into three Stages. A higher As(V) loading significantly delayed the transformation of AsACP, increased the distortion degree, and decreased the crystallinity of AsHAP. NMR result showed that the PO43- tetrahedral is geometrically preserved when PO43- is substituted by AsO43-. From AsACP to AsHAP, the As-substitution led to the transformation inhibition and As(V) immobilization.
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Affiliation(s)
- Yao Yan
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049 Beijing, China
| | - Yanan Fang
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Vivek Verma
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Jun Li
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049 Beijing, China
| | - Yong Wang
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yongqiang Yang
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China
| | - Fanrong Chen
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China
| | - Runliang Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China
| | - Shijun Wu
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China.
| | - Thomas J N Hooper
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Tim White
- School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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Measurements of Energetic States Resulting from Ion Exchanges in the Isomorphic Crystals of Apatites and Bioapatites. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248913. [PMID: 36558043 PMCID: PMC9781773 DOI: 10.3390/molecules27248913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/04/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Developments in the field of nanostructures open new ways for designing and manufacturing innovative materials. Here, we focused on new original ways of calculating energy changes during the substitution of foreign ions into the structure of apatites and bioapatites. Using these tools, the energetic costs of ion exchanges were calculated for the exemplary cases known from the literature. It was established that the most costly were ion exchanges of some cations inside apatites and of anions, and the least costly exchanges in tetrad channel positions. Real energy expenses for bioapatites are much smaller in comparison to mineral apatites due to the limited involvement of magnesium and carbonates in the structure of hard tissues. They are of the order of several electron volts per ion. The rigorous dependences of the energy changes and crystallographic cell volumes on the ionic radii of introduced cations were proved. The differentiation of the positioning of foreign ions in locations of Ca(I) and Ca(II) could be calculated in the case of a Ca-Pb reaction in hydroxyapatite. The energetic effects of tooth aging were indicated. The ability of energy change calculation during the ion exchange for isomorphic substances widens the advantages resulting from X-ray diffraction measurements.
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Seredin P, Goloshchapov D, Buylov N, Kashkarov V, Emelyanova A, Eremeev K, Ippolitov Y. Compositional Analysis of the Dental Biomimetic Hybrid Nanomaterials Based on Bioinspired Nonstoichiometric Hydroxyapatite with Small Deviations in the Carbonate Incorporation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4453. [PMID: 36558306 PMCID: PMC9783965 DOI: 10.3390/nano12244453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/07/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
In our paper, we discuss the results of a comprehensive structural-spectroscopic and microscopic analysis of non-stoichiometric nanocrystalline hydroxyapatite (CHAp) with low carbonate anion content and biomimetic hybrid nanomaterials produced on its basis. It was shown that hydroxyapatite nanocrystals synthesized by chemical precipitation and biogenic calcium source mimic the properties of biogenic apatite and also have a morphological organization of "core-shell" type. The "core" of the CHAp nanocrystal is characterized by an overabundance of calcium Ca/P~1.9. Thus "a shell" with thickness of ~3-5 nm is formed from intermediate apatite-like phases where the most probable are octocalcium phosphate, dicalcium phosphate dihydrate and tricalcium phosphate. The multimode model of the Raman profile of samples CHAp and biomimetic composites for spectral region 900-1100 cm-1 proposed in our work has allowed to allocate precise contribution of B-type carbonate substitution, taking into account the presence on a surface of "core" HAp nanocrystal of various third-party intermediate apatite-like phases. The calibration function constructed on the basis of the described model makes it possible to reliably determine small concentrations of carbonate in the structure of hydroxyapatite with the application of Raman express method of diagnostics. The results of our work can inspire researchers to study the processes of induced biomineralization in mineralized tissues of the human body, using non-destructive methods of control with simultaneous analysis of chemical bonding, as well as determining the role of impurity atoms in the functions exhibited by biotissue.
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Affiliation(s)
- Pavel Seredin
- Solid State Physics and Nanostructures Department, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia
- Scientific and Educational Center, Nanomaterials and Nanotechnologies, Ural Federal University, Lenin Ave 51, 620002 Yekaterinburg, Russia
| | - Dmitry Goloshchapov
- Solid State Physics and Nanostructures Department, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia
| | - Nikita Buylov
- Solid State Physics and Nanostructures Department, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia
| | - Vladimir Kashkarov
- Solid State Physics and Nanostructures Department, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia
| | - Anna Emelyanova
- Solid State Physics and Nanostructures Department, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia
| | - Konstantin Eremeev
- Solid State Physics and Nanostructures Department, Voronezh State University, Universitetskaya Pl. 1, 394018 Voronezh, Russia
| | - Yuri Ippolitov
- Department of Pediatric Dentistry with Orthodontia, Voronezh State Medical University, Studentcheskaya Ul. 11, 394006 Voronezh, Russia
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7
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Tang L, Li Y, Li R, Tao X, Huang X. Gradient Magnesium Content Affects Nanomechanics via Decreasing the Size and Crystallinity of Nanoparticles of Pseudoosteodentine of the Pacific Cutlassfish, Trichiurus lepturus Teeth. ACS OMEGA 2022; 7:39214-39223. [PMID: 36340077 PMCID: PMC9631885 DOI: 10.1021/acsomega.2c04808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The formation of biomaterials such as enamel, dentin, and bone is important for many organisms, and the mechanical properties of biomaterials are affected by a wide range of structural and chemical factors. Special dentins exist in extant aquatic gnathostomes, and many more are present in fossils. When a layer of compact orthodentine surrounds the porous osteodentine core in the crown, the composite dentin is called pseudoosteodentine. Using various high-resolution analytical techniques, including micro-computed tomography (micro-CT), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Raman spectroscopy, and nanoindentation, we analyzed the micro- and nanostructures, chemical composition, and mechanical properties of pseudoosteodentine in the Pacific cutlassfish, Trichiurus lepturus teeth. Nanoscale oval-shaped hydroxyapatite (HA) crystals were distributed in a disordered manner in the pseudoosteodentine, and a cross-sectional analysis showed that the mineral crystallinity and crystalline particle size of the outer orthodentine were greater than those of middle and inner osteodentine. Moreover, the outer orthodentine comprised a mixture of smaller crystals and larger, more mature crystals. The nano-hardness and nano-stiffness of outer orthodentine were significantly higher than those of middle and inner osteodentine along a radical direction. The hardness and stiffness of pseudoosteodentine were inversely proportional to its magnesium (Mg) content. These data are consistent with the concept that Mg delays crystal maturation. The crystal size, crystallinity, nano-hardness, and nano-stiffness of pseudoosteodentine all decreased commensurately with the increase of its Mg concentration. The pseudoosteodentine of T. lepturus also can be regarded as a functional gradient material (FGM) because its mechanical properties are closely related to its chemical composition and nanostructure. Special pseudoosteodentine may therefore serve as a design standard for biomimetic synthetic mineral composites.
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Affiliation(s)
- Li Tang
- Department
of Stomatology, Beijing Friendship Hospital,
Capital Medical University, Beijing 100050, China
- Department
of Orthodontics, The Affiliated Hospital
of Qingdao University, Qingdao 266005, China
- School
of Stomatology, Qingdao University, Qingdao 266071, China
- Immunology
Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Yongfeng Li
- Department
of Stomatology, Beijing Friendship Hospital,
Capital Medical University, Beijing 100050, China
- Immunology
Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Ruiqi Li
- Department
of Stomatology, Beijing Friendship Hospital,
Capital Medical University, Beijing 100050, China
- Immunology
Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Xingfu Tao
- National
Institute of Metrology, Beijing 100013, China
| | - Xiaofeng Huang
- Department
of Stomatology, Beijing Friendship Hospital,
Capital Medical University, Beijing 100050, China
- Immunology
Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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8
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Du Y, Phyo P, Li M, Sorman B, McNevin M, Xu W, Liu Y, Su Y. Quantifying Micromolar Crystallinity in Pharmaceutical Materials Utilizing 19F Solid-State NMR. Anal Chem 2022; 94:15341-15349. [DOI: 10.1021/acs.analchem.2c02828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Du
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Pyae Phyo
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Mingyue Li
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Bradley Sorman
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Michael McNevin
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Wei Xu
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Yong Liu
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
| | - Yongchao Su
- Analytical Research and Development, Merck & Co. Inc., Rahway, New Jersey07065, United States
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9
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Ren N, Petchsuk A, Opaprakasit M, Sreearunothai P, Opaprakasit P. Surface modifications of low-density polyethylene films with hydrophobic and antibacterial properties by chitosan-based materials. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2075275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Narath Ren
- Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat UniversitySchool of Bio-chemical, Pathum Thani, Thailand
| | - Atitsa Petchsuk
- National Metal and Materials Technology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand
| | - Mantana Opaprakasit
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Paiboon Sreearunothai
- Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat UniversitySchool of Bio-chemical, Pathum Thani, Thailand
| | - Pakorn Opaprakasit
- Engineering and Technology, Sirindhorn International Institute of Technology (SIIT), Thammasat UniversitySchool of Bio-chemical, Pathum Thani, Thailand
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10
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Berman AG, Damrath JG, Hatch J, Pulliam AN, Powell KM, Hinton M, Wallace JM. Effects of Raloxifene and tibial loading on bone mass and mechanics in male and female mice. Connect Tissue Res 2022; 63:3-15. [PMID: 33427519 PMCID: PMC8272732 DOI: 10.1080/03008207.2020.1865938] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Purpose: Raloxifene (RAL) is a selective estrogen receptor modulator (SERM) that has previously been shown to cause acellular benefits to bone tissue. Due to these improvements, RAL was combined with targeted tibial loading to assess if RAL treatment during periods of active bone formation would allow for further mechanical enhancements.Methods: Structural, mechanical, and microstructural effects were assessed in bone from C57BL/6 mice that were treated with RAL (0.5 mg/kg), tibial loading, or both for 6 weeks, beginning at 10 weeks of age.Results:Ex vivo microcomputed tomography (CT) images indicated RAL and loading work together to improve bone mass and architecture, especially within the cancellous region of males. Increases in cancellous bone volume fraction were heavily driven by increases in trabecular thickness, though there were some effects on trabecular spacing and number. In the cortical regions, RAL and loading both increased cross-sectional area, cortical area, and cortical thickness. Whole-bone mechanical testing primarily indicated the effects of loading. Further characterization through Raman spectroscopy and nanoindentation showed load-based changes in mineralization and micromechanics, while both loading and RAL caused changes in the secondary collagen structure. In contrast to males, in females, there were large load-based effects in the cancellous and cortical regions, resulting in increased whole-bone mechanical properties. RAL had less of an effect on cancellous and cortical architecture, though some effects were still present.Conclusion: RAL and loading work together to impact bone architecture and mechanical integrity, leading to greater improvements than either treatment individually.
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Affiliation(s)
- Alycia G. Berman
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - John G. Damrath
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - Jennifer Hatch
- Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA
| | - Alexis N. Pulliam
- Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA
| | - Katherine M. Powell
- Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA
| | - Madicyn Hinton
- Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA
| | - Joseph M. Wallace
- Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA,Corresponding Author Joseph M. Wallace, Ph.D., Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA, , +1-317-274-2448
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11
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Moradi A, Pakizeh M, Ghassemi T. A review on bovine hydroxyapatite; extraction and characterization. Biomed Phys Eng Express 2021; 8. [PMID: 34879359 DOI: 10.1088/2057-1976/ac414e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 12/08/2021] [Indexed: 11/12/2022]
Abstract
High rate of bone grafting surgeries emphasizes the need for optimal bone substitutes. Biomaterials mimicking the interconnected porous structure of the original bone with osteoconductive and osteoinductive capabilities have long been considered. Hydroxyapatite (HA), as the main inorganic part of natural bone, has exhibited excellent regenerative properties in bone tissue engineering. This manuscript reviews the HA extraction methods from bovine bone, as one of the principal biosources. Essential points in the extraction process have also been highlighted. Characterization of the produced HA through gold standard methods such as XRD, FTIR, electron microscopies (SEM and TEM), mechanical/thermodynamic tests, and bioactivity analysis has been explained in detail. Finally, future perspectives for development of HA constructs are mentioned.
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Affiliation(s)
- Ali Moradi
- Clinical Research Development Unit, Ghaem Hospital, Mashhad University of Medical Sciences (MUM), Mashhad, Iran.,Orthopedic Research Center, Mashhad University of Medical Sciences (MUM), Mashhad, Iran
| | - Majid Pakizeh
- Department of Chemical Engineering, Hamedan University of Technology, Hamedan, Iran
| | - Toktam Ghassemi
- Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
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12
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Raman and XANES Spectroscopic Study of the Influence of Coordination Atomic and Molecular Environments in Biomimetic Composite Materials Integrated with Dental Tissue. NANOMATERIALS 2021; 11:nano11113099. [PMID: 34835863 PMCID: PMC8625886 DOI: 10.3390/nano11113099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 12/18/2022]
Abstract
In this work, for the first time, the influence of the coordination environment as well as Ca and P atomic states on biomimetic composites integrated with dental tissue was investigated. Bioinspired dental composites were synthesised based on nanocrystalline calcium carbonate-substituted hydroxyapatite Ca4ICa6IIPO46−xCO3x+yOH2−y (nano-cHAp) obtained from a biogenic source and a set of polar amino acids that modelled the organic matrix. Biomimetic composites, as well as natural dental tissue samples, were investigated using Raman spectromicroscopy and synchrotron X-ray absorption near edge structure (XANES) spectroscopy. Molecular structure and energy structure studies revealed several important features related to the different calcium atomic environments. It was shown that biomimetic composites created in order to reproduce the physicochemical properties of dental tissue provide good imitation of molecular and electron energetic properties, including the carbonate anion CO32− and the atomic Ca/P ratio in nanocrystals. The features of the molecular structure of biomimetic composites are inherited from the nano-cHAp (to a greater extent) and the amino acid cocktail used for their creation, and are caused by the ratio between the mineral and organic components, which is similar to the composition of natural enamel and dentine. In this case, violation of the nano-cHAp stoichiometry, which is the mineral basis of the natural and bioinspired composites, as well as the inclusion of different molecular groups in the nano-cHAp lattice, do not affect the coordination environment of phosphorus atoms. The differences observed in the molecular and electron energetic structures of the natural enamel and dentine and the imitation of their properties by biomimetic materials are caused by rearrangement in the local environment of the calcium atoms in the HAp crystal lattice. The surface of the nano-cHAp crystals in the natural enamel and dentine involved in the formation of bonds with the organic matrix is characterised by the coordination environment of the calcium atom, corresponding to its location in the CaI position—that is, bound through common oxygen atoms with PO4 tetrahedrons. At the same time, on the surface of nano-cHAp crystals in bioinspired dental materials, the calcium atom is characteristically located in the CaII position, bound to the hydroxyl OH group. The features detected in the atomic and molecular coordination environment in nano-cHAp play a fundamental role in recreating a biomimetic dental composite of the natural organomineral interaction in mineralised tissue and will help to find an optimal way to integrate the dental biocomposite with natural tissue.
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Sharma A, Goring A, Johnson PB, Emery RJH, Hesse E, Boyde A, Olsen BR, Pitsillides AA, Oreffo ROC, Mahajan S, Clarkin CE. Multiscale molecular profiling of pathological bone resolves sexually dimorphic control of extracellular matrix composition. Dis Model Mech 2021; 14:dmm048116. [PMID: 33563616 PMCID: PMC7988766 DOI: 10.1242/dmm.048116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/21/2021] [Indexed: 11/28/2022] Open
Abstract
Collagen assembly during development is essential for successful matrix mineralisation, which determines bone quality and mechanocompetence. However, the biochemical and structural perturbations that drive pathological skeletal collagen configuration remain unclear. Deletion of vascular endothelial growth factor (VEGF; also known as VEGFA) in bone-forming osteoblasts (OBs) induces sex-specific alterations in extracellular matrix (ECM) conformation and mineralisation coupled to vascular changes, which are augmented in males. Whether this phenotypic dimorphism arises as a result of the divergent control of ECM composition and its subsequent arrangement is unknown and is the focus of this study. Herein, we used murine osteocalcin-specific Vegf knockout (OcnVEGFKO) and performed ex vivo multiscale analysis at the tibiofibular junction of both sexes. Label-free and non-destructive polarisation-resolved second-harmonic generation (p-SHG) microscopy revealed a reduction in collagen fibre number in males following the loss of VEGF, complemented by observable defects in matrix organisation by backscattered electron scanning electron microscopy. This was accompanied by localised divergence in collagen orientation, determined by p-SHG anisotropy measurements, as a result of OcnVEGFKO. Raman spectroscopy confirmed that the effect on collagen was linked to molecular dimorphic VEGF effects on collagen-specific proline and hydroxyproline, and collagen intra-strand stability, in addition to matrix carbonation and mineralisation. Vegf deletion in male and female murine OB cultures in vitro further highlighted divergence in genes regulating local ECM structure, including Adamts2, Spp1, Mmp9 and Lama1. Our results demonstrate the utility of macromolecular imaging and spectroscopic modalities for the detection of collagen arrangement and ECM composition in pathological bone. Linking the sex-specific genetic regulators to matrix signatures could be important for treatment of dimorphic bone disorders that clinically manifest in pathological nano- and macro-level disorganisation. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Aikta Sharma
- School of Biological Sciences, Highfield Campus, University of Southampton, Southampton SO17 1BJ, UK
| | - Alice Goring
- School of Biological Sciences, Highfield Campus, University of Southampton, Southampton SO17 1BJ, UK
| | - Peter B. Johnson
- School of Chemistry and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton SO17 1BJ, UK
| | - Roger J. H. Emery
- Department of Surgery and Cancer, Faculty of Medicine, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - Eric Hesse
- Institute of Molecular Musculoskeletal Research, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Munich 80336, Germany
| | - Alan Boyde
- Dental Physical Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, UK
| | - Bjorn R. Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Andrew A. Pitsillides
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London NW1 0TU, UK
| | - Richard O. C. Oreffo
- Centre for Human Development, Stem Cell and Regeneration, Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
| | - Sumeet Mahajan
- School of Chemistry and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton SO17 1BJ, UK
| | - Claire E. Clarkin
- School of Biological Sciences, Highfield Campus, University of Southampton, Southampton SO17 1BJ, UK
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14
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Mosiman DS, Sutrisno A, Fu R, Mariñas BJ. Internalization of Fluoride in Hydroxyapatite Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:2639-2651. [PMID: 33533604 DOI: 10.1021/acs.est.0c07398] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hydroxyapatite (HAP) is a cost-effective material to remove excess levels of fluoride from water. Historically, HAP has been considered a fluoride adsorbent in the environmental engineering community. This paper substantiates an uptake paradigm that has recently gained disparate support: assimilation of fluoride to bulk apatite lattice sites in addition to surface lattice sites. Pellets of HAP nanoparticles (NPs) were packed into a fixed-bed media filter to treat solutions containing 30 mg-F/L (1.58 mM) at pH 8, yielding an uptake of 15.97 ± 0.03 mg-F/g-HAP after 864 h. Solid-state 19F and 13C magic-angle spinning nuclear magnetic resonance spectroscopy demonstrated that all removed fluoride is apatitic. A transmission electron microscopy analysis of particle size distribution, morphology, and crystal habit resulted in the development of a model to quantify adsorption and total fluoride capacity. Low- and high-estimate median adsorption capacities were 2.40 and 6.90 mg-F/g-HAP, respectively. Discrepancies between experimental uptake and adsorption capacity indicate the range of F- that internalizes to satisfy conservation of mass. The model was developed to demonstrate that F- internalization in HAP NPs occurs under environmentally relevant conditions and as a tool to understand the extent of F- internalization in HAP NPs of any kind.
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Affiliation(s)
- Daniel S Mosiman
- Safe Global Water Institute, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign (UIUC), Urbana, Illinois 61801, United States
| | - Andre Sutrisno
- NMR/EPR Laboratory, School of Chemical Sciences NMR Facility, University of Illinois at Urbana-Champaign (UIUC), Urbana, Illinois 61801, United States
| | - Riqiang Fu
- National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Benito J Mariñas
- Safe Global Water Institute, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign (UIUC), Urbana, Illinois 61801, United States
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15
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Mosiman DS, Chen YS, Yang L, Hawkett B, Ringer SP, Mariñas BJ, Cairney JM. Atom Probe Tomography of Encapsulated Hydroxyapatite Nanoparticles. SMALL METHODS 2021; 5:e2000692. [PMID: 34927889 DOI: 10.1002/smtd.202000692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/19/2020] [Indexed: 06/14/2023]
Abstract
Hydroxyapatite nanoparticles (HAP NPs) are important for medicine, bioengineering, catalysis, and water treatment. However, current understanding of the nanoscale phenomena that confer HAP NPs their many useful properties is limited by a lack of information about the distribution of the atoms within the particles. Atom probe tomography (APT) has the spatial resolution and chemical sensitivity for HAP NP characterization, but difficulties in preparing the required needle-shaped samples make the design of these experiments challenging. Herein, two techniques are developed to encapsulate HAP NPs and prepare them into APT tips. By sputter-coating gold or the atomic layer deposition of alumina for encapsulation, partially fluoridated HAP NPs are successfully characterized by voltage- or laser-pulsing APT, respectively. Analyses reveal that significant tradeoffs exist between encapsulant methods/materials for HAP characterization and that selection of a more robust approach will require additional technique development. This work serves as an essential starting point for advancing knowledge about the nanoscale spatiochemistry of HAP NPs.
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Affiliation(s)
- Daniel S Mosiman
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Safe Global Water Institute, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yi-Sheng Chen
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, New South Wales, 2006, Australia
- School of Aerospace Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Limei Yang
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Brian Hawkett
- Key Centre for Polymer Colloids School of Chemistry, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Simon P Ringer
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, New South Wales, 2006, Australia
- School of Aerospace Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Benito J Mariñas
- Safe Global Water Institute, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Julie M Cairney
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, New South Wales, 2006, Australia
- School of Aerospace Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
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16
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Shah FA. Towards refining Raman spectroscopy-based assessment of bone composition. Sci Rep 2020; 10:16662. [PMID: 33028904 PMCID: PMC7541616 DOI: 10.1038/s41598-020-73559-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/17/2020] [Indexed: 01/21/2023] Open
Abstract
Various compositional parameters are derived using intensity ratios and integral area ratios of different spectral peaks and bands in the Raman spectrum of bone. The [Formula: see text]1-, [Formula: see text]2-,[Formula: see text]3-, [Formula: see text]4 PO43-, and [Formula: see text] CO32- bands represent the inorganic phase while amide I, amide III, Proline, Hydroxyproline, Phenylalanine, δ(CH3), δ(CH2), and [Formula: see text](C-H) represent the organic phase. Here, using high-resolution Raman spectroscopy, it is demonstrated that all PO43- bands of bone either partially overlap with or are positioned close to spectral contributions from the organic component. Assigned to the organic component, a shoulder at 393 cm-1 compromises accurate estimation of [Formula: see text]2 PO43- integral area, i.e., phosphate/apatite content, with implications for apatite-to-collagen and carbonate-to-phosphate ratios. Another feature at 621 cm-1 may be inaccurately interpreted as [Formula: see text]4 PO43- band broadening. In the 1020-1080 cm-1 range, the ~ 1047 cm-1 [Formula: see text]3 PO43- sub-component is obscured by the 1033 cm-1 Phenylalanine peak, while the ~ 1076 cm-1 [Formula: see text]3 PO43- sub-component is masked by the [Formula: see text]1 CO32- band. With [Formula: see text]1 PO43- peak broadening, [Formula: see text]2 PO43- integral area increases exponentially and individual peaks comprising the [Formula: see text]4 PO43- band merge together. Therefore, [Formula: see text]2 PO43- and [Formula: see text]4 PO43- band profiles are sensitive to changes in mineral crystallinity.
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Affiliation(s)
- Furqan A Shah
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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Vokhidova NR, Ergashev KH, Rashidova SS. Hydroxyapatite-Chitosan Bombyx mori: Synthesis and Physicochemical Properties. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01649-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Shah FA, Sayardoust S, Omar O, Thomsen P, Palmquist A. Does Smoking Impair Bone Regeneration in the Dental Alveolar Socket? Calcif Tissue Int 2019; 105:619-629. [PMID: 31535164 DOI: 10.1007/s00223-019-00610-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 08/27/2019] [Indexed: 12/24/2022]
Abstract
Smoking is a major risk factor for dental implant failure. In addition to higher marginal bone loss around implants, the cellular and molecular responses to injury and implant physicochemical properties are also differentially affected in smokers. The purpose of this work is to determine if smoking impairs bone microstructure and extracellular matrix composition within the dental alveolar socket after tooth extraction. Alveolar bone biopsies obtained from Smokers (> 10 cigarettes per day for at least 10 years) and Ctrl (never-smokers), 7-146 months after tooth extraction, were investigated using X-ray micro-computed tomography, backscattered electron scanning electron microscopy, and Raman spectroscopy. Both Smokers and Ctrl exhibited high inter- and intra-individual heterogeneity in bone microstructure, which varied between dense cortical and porous trabecular architecture. Regions of disorganised/woven bone were more prevalent during early healing. Remodelled lamellar bone was predominant at longer healing periods. Bone mineral density, bone surface-to-volume ratio, mineral crystallinity, the carbonate-to-phosphate ratio, the mineral-to-matrix ratio, the collagen crosslink ratio, and the amounts of amino acids phenylalanine and proline/hydroxyproline were also comparable between Smokers and Ctrl. Bone microstructure and composition within the healing dental alveolar socket are not significantly affected by moderate-to-heavy smoking.
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Affiliation(s)
- Furqan A Shah
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Shariel Sayardoust
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Periodontology, Institute for Postgraduate Dental Education, Jönköping, Sweden
| | - Omar Omar
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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19
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Gourgas O, Cole GB, Muiznieks LD, Sharpe S, Cerruti M. Effect of the Ionic Concentration of Simulated Body Fluid on the Minerals Formed on Cross-Linked Elastin-Like Polypeptide Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15364-15375. [PMID: 31729882 DOI: 10.1021/acs.langmuir.9b02542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Deposition of calcium phosphate minerals on the elastin-rich medial layers of arteries can cause severe cardiovascular complications. There are no available treatments for medial calcification, and the mechanism of mineral formation on elastin layers is still unknown. We recently developed an in vitro model of medial calcification using cross-linked elastin-like polypeptide (ELP) membranes immersed in simulated body fluid (SBF). While mineral phase evolution matched that observed in a mouse model of medial calcification, the long incubation required was a practical limitation of this model. Using higher SBF ion concentrations could be a solution to speed up mineral deposition, but its effect on the mineralization process is still not well understood. Here we analyze mineral formation and phase transformation on ELP membranes immersed in high concentration SBF. We show that while mineral deposition is significantly accelerated in these conditions, the chemistry and morphology of the minerals deposited on the ELP membranes and the overall mineralization process are strongly affected. Overall, this work suggests that while the use of low concentration SBF in this in vitro model is more appropriate to study medial calcification associated with the loss of calcification inhibitors, higher SBF ion concentration may be more relevant to study medial calcification in patients with life-threatening diseases such as chronic kidney disease.
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Affiliation(s)
- Ophélie Gourgas
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
| | - Gregory B Cole
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Lisa D Muiznieks
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
| | - Simon Sharpe
- Molecular Medicine , Hospital for Sick Children , Toronto , Ontario M5G 0A4 , Canada
- Department of Biochemistry , University of Toronto , Toronto , Ontario M5S 1A8 , Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering , McGill University , Montreal , Quebec H3A 0C5 , Canada
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20
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Hajji H, Nasr S, Millot N, Salem EB. Study of the effect of milling parameters on mechanosynthesis of hydroxyfluorapatite using the Taguchi method. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.08.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Shah FA, Sayardoust S, Thomsen P, Palmquist A. Extracellular matrix composition during bone regeneration in the human dental alveolar socket. Bone 2019; 127:244-249. [PMID: 31176735 DOI: 10.1016/j.bone.2019.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/03/2019] [Accepted: 06/06/2019] [Indexed: 12/28/2022]
Abstract
Within the dental alveolar socket, the sequence of events following tooth extraction involves deposition of a provisional connective tissue matrix that is later replaced by woven bone and eventually by lamellar bone. Bone regeneration within the dental alveolar socket is unique since the space occupied by the root(s) of a tooth does not originally contain any bone. However, extracellular matrix composition of the healing alveolar socket has not previously been investigated. Here, alveolar bone biopsies representing early (7-46 months, < 4y) and late (48-60 months; 4-5y) healing periods were investigated using Raman spectroscopy, X-ray micro-computed tomography and backscattered electron scanning electron microscopy. Partially or completely edentulous individuals and those with a smoking habit were not excluded. Between < 4y and 4-5y, mineral crystallinity and bone mineral density increase, phenylalanine, proline/hydroxyproline, and bone surface-to-volume ratio decrease, while the carbonate-to-phosphate ratio, the mineral-to-matrix ratio, and the collagen crosslink ratio remain relatively unchanged. Observed exclusively at 4-5y, hypermineralised osteocyte lacunae contain spherical and rhomboidal mineral nodules. Spearman correlation analysis reveals several significant, high (ρ = 0.7-0.9; p ≤ 0.01) and moderate (ρ = 0.5-0.7; p ≤ 0.01) correlations. Mineral crystallinity and proline/hydroxyproline, the carbonate-to-phosphate ratio and phenylalanine, mineral crystallinity and bone surface-to-volume ratio, the carbonate-to-phosphate ratio and bone surface-to-volume ratio, proline/hydroxyproline and bone mineral density, and bone mineral density and bone surface-to-volume ratio are negatively correlated. Mineral crystallinity and bone mineral density, and proline/hydroxyproline and bone surface-to-volume ratio are positively correlated. Although bone regeneration in the dental alveolar socket follows typical bone healing patterns, the compositional and microstructural patterns reveal mature bone at <4y with indications of better mechanical competence at 4-5y.
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Affiliation(s)
- Furqan A Shah
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Shariel Sayardoust
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Periodontology, Institute for Postgraduate Dental Education, Jönköping, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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22
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King HE, Tommasini SM, Rodriguez-Navarro AB, Mercado BQ, Skinner HCW. Correlative vibrational spectroscopy and 2D X-ray diffraction to probe the mineralization of bone in phosphate-deficient mice. J Appl Crystallogr 2019; 52:960-971. [PMID: 31636517 PMCID: PMC6782074 DOI: 10.1107/s1600576719009361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/29/2019] [Indexed: 11/18/2022] Open
Abstract
Bone crystallite chemistry and structure change during bone maturation. However, these properties of bone can also be affected by limited uptake of the chemical constituents of the mineral by the animal. This makes probing the effect of bone-mineralization-related diseases a complicated task. Here it is shown that the combination of vibrational spectroscopy with two-dimensional X-ray diffraction can provide unparalleled information on the changes in bone chemistry and structure associated with different bone pathologies (phosphate deficiency) and/or health conditions (pregnancy, lactation). Using a synergistic analytical approach, it was possible to trace the effect that changes in the remodelling regime have on the bone mineral chemistry and structure in normal and mineral-deficient (hypophosphatemic) mice. The results indicate that hypophosphatemic mice have increased bone remodelling, increased carbonate content and decreased crystallinity of the bone mineral, as well as increased misalignment of crystallites within the bone tissue. Pregnant and lactating mice that are normal and hypophosphatemic showed changes in the chemistry and misalignment of the apatite crystals that can be related to changes in remodelling rates associated with different calcium demand during pregnancy and lactation.
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Affiliation(s)
- Helen E King
- Department of Earth Sciences, Utrecht University, Princetonlaan 8a, Utrecht 3584 CB, The Netherlands
- Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, Connecticut CT-06511, USA
| | - Steven M Tommasini
- Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, 330 Cedar Street, New Haven, Connecticut CT-06510, USA
| | | | - Brandon Q Mercado
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut CT-06511, USA
| | - H Catherine W Skinner
- Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, Connecticut CT-06511, USA
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Hegde MN, Gatti P, Hegde ND. Protection of wear resistance behaviour of enamel against electron beam irradiation. BDJ Open 2019; 5:11. [PMID: 31308959 PMCID: PMC6624204 DOI: 10.1038/s41405-019-0021-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 04/30/2019] [Accepted: 06/03/2019] [Indexed: 11/09/2022] Open
Abstract
Introduction Irradiation is known to cause oxidation process among the tissue-altering the properties of teeth leading to tissue necrosis and caries formation. Hence protection of the oral cavity is a major concern to deal with therapy side effects. Aim Evaluation of wear resistance property of Enamel against electron beam radiation and analysing the radio protective effects of natural organic compounds. Materials and methods Total of 36 healthy extracted human molar teeth were collected, four samples were used as control, and remaining 32 were divided into four groups (N = 8 each): radiation control group and three groups treated with organic compounds during radiation treatment. The enamel samples were tested for FTIR spectroscopy, XRD analysis, SEM and EDAX analysis before and after 70 Gy radiation treatment. Results and discussion The particle size of radiation control samples had increased showing decrease in its crystallinity index. Calcium to Phosphorous ratio had also decreased along with structural changes as observed by SEM analysis. But groups treated with organic compounds has maintained tooth integrity in comparable to control groups after radiation treatment. Conclusion Virgin coconut oil, vitamin E oil and curcumin has potential radioprotective action against radiation in protecting tissue properties. Hence, with further advanced research, these natural substances should emerge as a topical applicator during radiotherapy to oral cancer patients.
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Affiliation(s)
- Mithra N Hegde
- Department of Conservative Dentistry & Endodontics, A. B. Shetty Memorial Institute of Dental Sciences, NITTE (deemed to be university), Mangalore, 575018 India
| | - Priya Gatti
- A. B. Shetty Memorial Institute of Dental Sciences, NITTE (deemed to be university), Mangalore, 575018 India
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Zhang L, Feng KC, Yu Y, Chuang YC, Chang CC, Vadada S, Patel R, Singh V, Simon M, Rafailovich M. Effect of Graphene on Differentiation and Mineralization of Dental Pulp Stem Cells in Poly(4-vinylpyridine) Matrix in Vitro. ACS APPLIED BIO MATERIALS 2019; 2:2435-2443. [DOI: 10.1021/acsabm.9b00127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Linxi Zhang
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- ThINC Facility, Advanced Energy Center, Stony Brook University, Stony Brook, New York 11794, United States
| | - Kuan-Che Feng
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Yingjie Yu
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Ya-Chen Chuang
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- ThINC Facility, Advanced Energy Center, Stony Brook University, Stony Brook, New York 11794, United States
| | - Chung-Chueh Chang
- ThINC Facility, Advanced Energy Center, Stony Brook University, Stony Brook, New York 11794, United States
| | - Sahith Vadada
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Rushikesh Patel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Vedant Singh
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Marcia Simon
- Department of Oral Biology and Pathology, University School of Dental Medicine, Stony Brook University, Stony Brook, New York 11794, United States
| | - Miriam Rafailovich
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
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25
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Dos Anjos S, Mavropoulos E, Alves GG, Costa AM, de Alencar Hausen M, Spiegel CN, Longuinho MM, Mir M, Granjeiro JM, Rossi AM. Impact of crystallinity and crystal size of nanostructured carbonated hydroxyapatite on pre-osteoblast in vitro biocompatibility. J Biomed Mater Res A 2019; 107:1965-1976. [PMID: 31035306 DOI: 10.1002/jbm.a.36709] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 04/24/2019] [Indexed: 01/26/2023]
Abstract
Nanostructured carbonated hydroxyapatite (nCHA) is a promising biomaterial for bone tissue engineering due to its chemical properties, similar to those of the bone mineral phase and its enhanced in vivo bioresorption. However, the biological effects of nCHA nanoparticles on cells and tissues are not sufficiently known. This study assessed the impact of exposing pre-osteoblasts to suspensions with high doses of nCHA nanoparticles with high or low crystallinity. MC3T3-E1 pre-osteoblasts were cultured for 1 or 7 days in a culture medium previously exposed to CHA nanoparticles for 1 day. Control groups were produced by centrifugation for removal of bigger nCHA aggregates before exposure. Interaction of nanoparticles with the culture medium drastically changed medium composition, promoting Ca, P, and protein adsorption. Transmission Electron microscopy revealed that exposed cells were able to internalize both materials, which seemed concentrated inside endosomes. No cytotoxicity was observed for both materials, regardless of centrifugation, and the exposure did not induce alterations in the release of pro-and anti-inflammatory cytokines. Morphological analysis revealed strong interactions of nCHA aggregates with cell surfaces, however without marked alterations in morphological features and cytoskeleton ultrastructure. The overall in vitro biocompatibility of nCHA materials, regardless of physicochemical characteristics such as crystallinity, encourages further studies on their clinical applications.
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Affiliation(s)
- Suzana Dos Anjos
- Department of Condensed Matter, Applied Physics and Nanoscience, Brazilian Center for Physics Research, Urca, Rio de Janeiro, Brazil
| | - Elena Mavropoulos
- Department of Condensed Matter, Applied Physics and Nanoscience, Brazilian Center for Physics Research, Urca, Rio de Janeiro, Brazil
| | - Gutemberg G Alves
- Department of Cellular and Molecular Biology, Institute of Biology, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Andrea M Costa
- Department of Condensed Matter, Applied Physics and Nanoscience, Brazilian Center for Physics Research, Urca, Rio de Janeiro, Brazil
| | - Moema de Alencar Hausen
- Biomaterial's Laboratory, Faculty of Medical Sciences, Pontifical Catholic University of São Paulo, Sorocaba, São Paulo, Brazil
| | - Carolina N Spiegel
- Department of Cellular and Molecular Biology, Institute of Biology, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Mariana M Longuinho
- Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas Filho, Rio de Janeiro, Brazil
| | - Mirta Mir
- Federal University of Alfenas, Exact Sciences Institute (ICEx) MG-Brasil, Alfenas, Brazil
| | - José M Granjeiro
- National Institute of Metrology, Duque de Caxias, Rio de Janeiro, Brazil
| | - Alexandre M Rossi
- Department of Condensed Matter, Applied Physics and Nanoscience, Brazilian Center for Physics Research, Urca, Rio de Janeiro, Brazil
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26
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Yang Z, Gao X, Zhou M, Kuang Y, Xiang M, Li J, Song J. Effect of metformin on human periodontal ligament stem cells cultured with polydopamine‐templated hydroxyapatite. Eur J Oral Sci 2019; 127:210-221. [DOI: 10.1111/eos.12616] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Zun Yang
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
| | - Xiang Gao
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
| | - Mengjiao Zhou
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
| | - Yunchun Kuang
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
| | - Mingli Xiang
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
| | - Jie Li
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
| | - Jinlin Song
- College of Stomatology Chongqing Medical University Chongqing China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences Chongqing China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education Chongqing China
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27
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Madhan Kumar A, Adesina AY, Hussein MA, Ramakrishna S, Al-Aqeeli N, Akhtar S, Saravanan S. PEDOT/FHA nanocomposite coatings on newly developed Ti-Nb-Zr implants: Biocompatibility and surface protection against corrosion and bacterial infections. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:482-495. [PMID: 30813050 DOI: 10.1016/j.msec.2019.01.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 12/11/2018] [Accepted: 01/03/2019] [Indexed: 01/19/2023]
Abstract
The fabrication of bioactive polymer nanocomposite coatings with enhanced biocompatibility and surface protection has been a topic of abundant concern in orthopaedic implant applications. Herein, we electrochemically prepared a novel poly (3,4-ethylenedioxythiophene) (PEDOT) based nanocomposite coatings with different contents of fluoro hydroxyapatite (FHA) nanoparticles on a newly developed Ti-Nb-Zr (TNZ) alloy; an appropriate approach to advance the surface features of TNZ implants. FTIR, XRD, and Raman analyses of the coating confirm the successful preparation of PEDOT/FHA nanocomposite, and XPS validate the chemical interaction between FHA and PEDOT matrix. SEM and TEM examination show the uniform distribution of spherical FHA nanoparticles inside the PEDOT matrix. Hardness and contact angle measurement results showed improving in the hardness and surface wettability of the coated samples respectively. Electrochemical corrosion tests specified that the PEDOT/FHA coatings exhibit higher corrosion protection than the pure PEDOT coatings. The fabricated nanocomposite coating supports the cell adsorption and proliferation of MG-63 cells. Moreover, antibacterial studies against Gram positive and negative bacteria reveal the enhanced antibacterial performance of the coated TNZ substrates. Our results show the potential applications of PEDOT/FHA nanocomposite as a most viable coating for the orthopaedic implants.
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Affiliation(s)
- A Madhan Kumar
- Centre of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
| | - Akeem Yusuf Adesina
- Centre of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - M A Hussein
- Centre of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea; College of Medicine, Hanyang University, Seoul, South Korea
| | - N Al-Aqeeli
- Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Sultan Akhtar
- Electron Microscopy Unit, Institute for Research & Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - S Saravanan
- Department of life science, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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28
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Kaflak A, Moskalewski S, Kolodziejski W. The solid-state proton NMR study of bone using a dipolar filter: apatite hydroxyl contentversusanimal age. RSC Adv 2019; 9:16909-16918. [PMID: 35516370 PMCID: PMC9064436 DOI: 10.1039/c9ra01902b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/13/2019] [Indexed: 12/24/2022] Open
Abstract
The hydroxyl content of bone apatite mineral has been measured using proton solid-state NMR performed with a multiple-pulse dipolar filter under slow magic angle spinning (MAS). This new method succeeded in resolving and relatively enhancing the main hydroxyl peak at ca. 0 ppm from whole bone, making it amenable to rigorous quantitative analysis. The proposed methodology, involving line fitting, the measurement of the apatite concentration in the studied material and adequate calibration, was proved to be convenient and suitable for monitoring bone mineral hydroxylation in different species and over the lifetime of the animal. It was found that the hydroxyl content in the cranial bone mineral of pig and rats remained in the 5–10% range, with reference to stoichiometric hydroxyapatite. In rats, the hydroxyl content showed a non-monotonic increase with age, which was governed by biological processes rather than by chemical, thermodynamically driven apatite maturation. Mineral hydroxylation in whole bone can be accurately studied using proton MAS NMR with a multiple-pulse dipolar filter.![]()
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Affiliation(s)
- Agnieszka Kaflak
- Medical University of Warsaw
- Faculty of Pharmacy
- Department of Analytical Chemistry and Biomaterials
- Warsaw 02-097
- Poland
| | - Stanisław Moskalewski
- Medical University of Warsaw
- Department of Histology and Embryology
- Warsaw 02-004
- Poland
| | - Waclaw Kolodziejski
- Medical University of Warsaw
- Faculty of Pharmacy
- Department of Analytical Chemistry and Biomaterials
- Warsaw 02-097
- Poland
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29
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Dal Sasso G, Asscher Y, Angelini I, Nodari L, Artioli G. A universal curve of apatite crystallinity for the assessment of bone integrity and preservation. Sci Rep 2018; 8:12025. [PMID: 30104595 PMCID: PMC6089980 DOI: 10.1038/s41598-018-30642-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/02/2018] [Indexed: 11/09/2022] Open
Abstract
The reliable determination of bioapatite crystallinity is of great practical interest, as a proxy to the physico-chemical and microstructural properties, and ultimately, to the integrity of bone materials. Bioapatite crystallinity is used to diagnose pathologies in modern calcified tissues as well as to assess the preservation state of fossil bones. To date, infrared spectroscopy is one of the most applied techniques for bone characterisation and the derived infrared splitting factor (IRSF) has been widely used to practically assess bioapatite crystallinity. Here we thoroughly discuss and revise the use of the IRSF parameter and its meaning as a crystallinity indicator, based on extensive measurements of fresh and fossil bones, virtually covering the known range of crystallinity degree of bioapatite. A novel way to calculate and use the infrared peak width as a suitable measurement of true apatite crystallinity is proposed, and validated by combined measurement of the same samples through X-ray diffraction. The non-linear correlation between the infrared peak width and the derived ISRF is explained. As shown, the infrared peak width at 604 cm−1 can be effectively used to assess both the average crystallite size and structural carbonate content of bioapatite, thus establishing a universal calibration curve of practical use.
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Affiliation(s)
- Gregorio Dal Sasso
- Dipartimento di Geoscienze, Università degli Studi di Padova, Via G. Gradenigo 6, 35131, Padova, Italy.
| | - Yotam Asscher
- Dipartimento di Geoscienze, Università degli Studi di Padova, Via G. Gradenigo 6, 35131, Padova, Italy
| | - Ivana Angelini
- Dipartimento dei Beni Culturali: archeologia, storia dell'arte, del cinema e della musica, Università degli Studi di Padova, Piazza Capitaniato 7, 35139, Padova, Italy
| | - Luca Nodari
- Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia - ICMATE - Consiglio Nazionale delle Ricerche, Corso Stati Uniti 4, 35127, Padova, Italy
| | - Gilberto Artioli
- Dipartimento di Geoscienze, Università degli Studi di Padova, Via G. Gradenigo 6, 35131, Padova, Italy
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30
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Zhang L, Yu Y, Feng KC, Chuang YC, Zuo X, Zhou Y, Chang CC, Simon M, Rafailovich M. Templated dentin formation by dental pulp stem cells on banded collagen bundles nucleated on electrospun poly (4-vinyl pyridine) fibers in vitro. Acta Biomater 2018; 76:80-88. [PMID: 29940368 DOI: 10.1016/j.actbio.2018.06.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/16/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023]
Abstract
Eventhough it is well established that materials can promote stem cell differentiation, hard tissue formation is a templated process for which little is known regarding the in vitro process. We have found that surface curvature enables self-assembly of triple helical collagen fibrils into banded bundle structures from rat tail and human collagen secreted by dental pulp stem cells. Collagen fibrils were adsorbed at 4 °C on spun cast flat P4VP films and electrospun fibers. Protein adsorption was observed on both surfaces, but large banded bundles with a uniform spacing of approximately 55 nm were present only on the fiber surfaces. SEM/EDS mapping showed that dental pulp stem cells plated on the same surfaces biomineralized copiously only along the electrospun fibers. Raman spectroscopy indicated that despite the presence of adsorbed collagen on the flat surfaces, only the deposits present on the fibrous surface had a protein to hydroxyl apatite ratio similar to natural dentin from human teeth. RT-PCR indicated up regulation of collagen, osteocalcin and dental sialophosphate protein, confirming that odontogenic differentiation is promoted only on the fiber scaffolds. Taken together the results indicate that, in addition to surface chemistry, the supermolecular structure of ECM collagen, which is essential in directing DPSCs differentiation and templating biomineralization, can be modified by the underlying surface morphology. STATEMENT OF SIGNIFICANCE The past decade has been focused efforts in the use of dental pulp stem cells (DPSC) for dental regeneration. Eventhough the factors required for DPSCs differentiation have been well studied, actual mineral deposition, positively identified as dentin, has not been achieved in vitro. Hard tissue is known to be a templated process in vivo where the mineral to protein ratio is tightly controlled via proteins which aid in collagen conformation and mineral sequestration. Here we show that one can mimic this process in vitro via the combination of materials selection and morphology. The material chemistry is shown to induce genetic upregulation the genes responsible for collagen and osteocalcin, while Raman spectroscopy confirms the translation and adsorption the proteins on the substrate. But, we show that the simple presence of collagen is not enough to template actual biomineral deposition similar to that found in vivo. Mineral deposition is a complicated process templated on collagen bundles and mediated by specific sibling proteins that determine the protein to mineral ratio. Here we show that surface curvature can reduce the barrier to collagen bundle formation, directing DPSC differentiation along odontogenic lineage, and subsequently templating actual dentin, comparable to that found in vivo in human teeth.
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Affiliation(s)
- Linxi Zhang
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States; ThINC Facility, Advanced Energy Center, Stony Brook University, Stony Brook, NY 11794, United States
| | - Yingjie Yu
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States; Department of Biomedical Engineering, Tufts University, Medford, MA 02155, United States
| | - Kuan-Che Feng
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States
| | - Ya-Chen Chuang
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States; ThINC Facility, Advanced Energy Center, Stony Brook University, Stony Brook, NY 11794, United States
| | - Xianghao Zuo
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States
| | - Yuchen Zhou
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States
| | - Chung-Cheuh Chang
- ThINC Facility, Advanced Energy Center, Stony Brook University, Stony Brook, NY 11794, United States
| | - Marcia Simon
- Department of Oral Biology and Pathology, Stony Brook University, Stony Brook University School of Dental Medicine, Stony Brook, NY 11794, United States
| | - Miriam Rafailovich
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, United States.
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31
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Tsai BNF, Tsao C, Huang SJ, Chang CK, Chan JCC. Preparation and Structural Characterization of Free-Standing Octacalcium-Phosphate-Rich Thin Films. J Phys Chem B 2018; 122:2082-2089. [DOI: 10.1021/acs.jpcb.7b11977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | | | - Chung-Kai Chang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
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32
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Leroy C, Aussenac F, Bonhomme-Coury L, Osaka A, Hayakawa S, Babonneau F, Coelho-Diogo C, Bonhomme C. Hydroxyapatites: Key Structural Questions and Answers from Dynamic Nuclear Polarization. Anal Chem 2017; 89:10201-10207. [PMID: 28872852 DOI: 10.1021/acs.analchem.7b01332] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We demonstrate that NMR/DNP (Dynamic Nuclear Polarization) allows an unprecedented description of carbonate substituted hydroxyapatite (CHAp). Key structural questions related to order/disorder and clustering of carbonates are tackled using distance sensitive DNP experiments using 13C-13C recoupling. Such experiments are easily implemented due to unprecedented DNP gain (orders of magnitude). DNP is efficiently mediated by quasi one-dimensional spin diffusion through the hydroxyl columns present in the CHAp structure (thought of as "highways" for spin diffusion). For spherical nanoparticles and ϕ < 100 nm, it is numerically shown that spin diffusion allows their study as a whole. Most importantly, we demonstrate also that the DNP study at 100 K leads to data which are comparable to data obtained at room temperature (in terms of spin dynamics and line shape resolution). Finally, all 2D DNP experiments can be interpreted in terms of domains exhibiting well identified types of substitution: local order and carbonate clustering are clearly favored.
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Affiliation(s)
- César Leroy
- Sorbonne Universités, UPMC Université Paris 06 , CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP) UMR 7574, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Fabien Aussenac
- Bruker France , 34, rue de l'Industrie, 67166 Wissembourg, France
| | - Laure Bonhomme-Coury
- Sorbonne Universités, UPMC Université Paris 06 , CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP) UMR 7574, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Akiyoshi Osaka
- Graduate School of Natural Science and Technology, University of Okayama , Okayama 700-8530, Japan
| | - Satoshi Hayakawa
- Graduate School of Natural Science and Technology, University of Okayama , Okayama 700-8530, Japan
| | - Florence Babonneau
- Sorbonne Universités, UPMC Université Paris 06 , CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP) UMR 7574, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Cristina Coelho-Diogo
- Sorbonne Universités, UPMC Université Paris 06 , CNRS, Institut des Matériaux de Paris Centre (IMPC-UPMC-FR2482), 75252 Paris, Cedex 05, France
| | - Christian Bonhomme
- Sorbonne Universités, UPMC Université Paris 06 , CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP) UMR 7574, 4 Place Jussieu, 75252 Paris Cedex 05, France
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33
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Narayanan A, Khanchandani P, Borkar RM, Ambati CR, Roy A, Han X, Bhoskar RN, Ragampeta S, Gannon F, Mysorekar V, Karanam B, V SM, Sivaramakrishnan V. Avascular Necrosis of Femoral Head: A Metabolomic, Biophysical, Biochemical, Electron Microscopic and Histopathological Characterization. Sci Rep 2017; 7:10721. [PMID: 28878383 PMCID: PMC5587540 DOI: 10.1038/s41598-017-10817-w] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/14/2017] [Indexed: 12/29/2022] Open
Abstract
Avascular necrosis of the femur head (AVNFH) is a debilitating disease caused due to the use of alcohol, steroids, following trauma or unclear (idiopathic) etiology, affecting mostly the middle aged population. Clinically AVNFH is associated with impaired blood supply to the femoral head resulting in bone necrosis and collapse. Although Homocysteine (HC) has been implicated in AVNFH, levels of homocysteine and its associated pathway metabolites have not been characterized. We demonstrate elevated levels of homocysteine and concomitantly reduced levels of vitamins B6 and B12, in plasma of AVNFH patients. AVNFH patients also had elevated blood levels of sodium and creatinine, and reduced levels of random glucose and haemoglobin. Biophysical and ultrastructural analysis of AVNFH bone revealed increased remodelling and reduced bone mineral density portrayed by increased carbonate to phosphate ratio and decreased Phosphate to amide ratio together with disrupted trabeculae, loss of osteocytes, presence of calcified marrow, and elevated expression of osteocalcin in the osteoblasts localized in necrotic regions. Taken together, our studies for the first time characterize the metabolomic, pathophysiological and morphometric changes associated with AVNFH providing insights for development of new markers and therapeutic strategies for this debilitating disorder.
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Affiliation(s)
- Aswath Narayanan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute for Higher Learning, Prasanthi Nilayam, Puttaparthi, Anantapur District, Andhra Pradesh, India
| | - Prakash Khanchandani
- Department of Orthopaedics, Sri Sathya Sai Institute of Higher Medical Sciences, Prasanthigram, Puttaparthi, Anantapur District, Andhra Pradesh, India.
| | - Roshan M Borkar
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | | | - Arun Roy
- Raman Research Institute, C.V Raman Avenue, Sadashivanagar, Bengaluru, Karnataka, India
| | - Xu Han
- Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, One Baylor Plaza, Houston, 77030, United States
| | - Ritesh N Bhoskar
- Department of Orthopaedics, Sri Sathya Sai Institute of Higher Medical Sciences, Prasanthigram, Puttaparthi, Anantapur District, Andhra Pradesh, India
| | - Srinivas Ragampeta
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
| | - Francis Gannon
- Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, 77030, United States
- Michael E. DeBakey Veteran Affairs Medical Center, Houston, Texas, United States
| | - Vijaya Mysorekar
- Department of Pathology, M. S. Ramaiah Medical College and Hospital, Bengaluru, Karnataka, India
| | - Balasubramanyam Karanam
- Department of Biology and Cancer Research, 1200, W. Montgomery Rd, Tuskegee University, Tuskegee, AL, 36088, United States
| | - Sai Muthukumar V
- Department of Physics, Sri Sathya Sai Institute for Higher Learning, Prasanthi Nilayam, Puttaparthi, Anantapur District, Andhra Pradesh, India
| | - Venketesh Sivaramakrishnan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute for Higher Learning, Prasanthi Nilayam, Puttaparthi, Anantapur District, Andhra Pradesh, India.
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34
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Hassan N, McCarville K, Morinaga K, Mengatto CM, Langfelder P, Hokugo A, Tahara Y, Colwell CS, Nishimura I. Titanium biomaterials with complex surfaces induced aberrant peripheral circadian rhythms in bone marrow mesenchymal stromal cells. PLoS One 2017; 12:e0183359. [PMID: 28817668 PMCID: PMC5560683 DOI: 10.1371/journal.pone.0183359] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 08/02/2017] [Indexed: 01/08/2023] Open
Abstract
Circadian rhythms maintain a high level of homeostasis through internal feed-forward and -backward regulation by core molecules. In this study, we report the highly unusual peripheral circadian rhythm of bone marrow mesenchymal stromal cells (BMSCs) induced by titanium-based biomaterials with complex surface modifications (Ti biomaterial) commonly used for dental and orthopedic implants. When cultured on Ti biomaterials, human BMSCs suppressed circadian PER1 expression patterns, while NPAS2 was uniquely upregulated. The Ti biomaterials, which reduced Per1 expression and upregulated Npas2, were further examined with BMSCs harvested from Per1::luc transgenic rats. Next, we addressed the regulatory relationship between Per1 and Npas2 using BMSCs from Npas2 knockout mice. The Npas2 knockout mutation did not rescue the Ti biomaterial-induced Per1 suppression and did not affect Per2, Per3, Bmal1 and Clock expression, suggesting that the Ti biomaterial-induced Npas2 overexpression was likely an independent phenomenon. Previously, vitamin D deficiency was reported to interfere with Ti biomaterial osseointegration. The present study demonstrated that vitamin D supplementation significantly increased Per1::luc expression in BMSCs, though the presence of Ti biomaterials only moderately affected the suppressed Per1::luc expression. Available in vivo microarray data from femurs exposed to Ti biomaterials in vitamin D-deficient rats were evaluated by weighted gene co-expression network analysis. A large co-expression network containing Npas2, Bmal1, and Vdr was observed to form with the Ti biomaterials, which was disintegrated by vitamin D deficiency. Thus, the aberrant BMSC peripheral circadian rhythm may be essential for the integration of Ti biomaterials into bone.
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Affiliation(s)
- Nathaniel Hassan
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Oral Biology & Medicine, UCLA School of Dentistry, Los Angeles, California, United States of America
| | - Kirstin McCarville
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Oral Biology & Medicine, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Advanced Prosthodontics, UCLA School of Dentistry, Los Angeles, California, United States of America
| | - Kenzo Morinaga
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Advanced Prosthodontics, UCLA School of Dentistry, Los Angeles, California, United States of America
- Department of Oral Rehabilitation, Section of Oral Implantology, Fukuoka Dental College, Fukuoka, Japan
| | - Cristiane M. Mengatto
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, California, United States of America
- Department of Conservative Dentistry, School of Dentistry Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Peter Langfelder
- Department of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Akishige Hokugo
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Plastic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Yu Tahara
- Department of Psychiatry & Biobehavioral Science, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Christopher S. Colwell
- Department of Psychiatry & Biobehavioral Science, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Ichiro Nishimura
- Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Oral Biology & Medicine, UCLA School of Dentistry, Los Angeles, California, United States of America
- Division of Advanced Prosthodontics, UCLA School of Dentistry, Los Angeles, California, United States of America
- * E-mail:
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Madupalli H, Pavan B, Tecklenburg MMJ. Carbonate substitution in the mineral component of bone: Discriminating the structural changes, simultaneously imposed by carbonate in A and B sites of apatite. J SOLID STATE CHEM 2017; 255:27-35. [PMID: 29430063 DOI: 10.1016/j.jssc.2017.07.025] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The mineral component of bone and other biological calcifications is primarily a carbonate substituted calcium apatite. Integration of carbonate into two sites, substitution for phosphate (B-type carbonate) and substitution for hydroxide (A-type carbonate), influences the crystal properties which relate to the functional properties of bone. In the present work, a series of AB-type carbonated apatites (AB-CAp) having varying A-type and B-type carbonate weight fractions were prepared and analyzed by Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), and carbonate analysis. A detailed characterization of A-site and B-site carbonate assignment in the FTIR ν3 region is proposed. The mass fractions of carbonate in A-site and B- site of AB-CAp correlate differently with crystal axis length and crystallite domain size. In this series of samples reduction in crystal domain size correlates only with A-type carbonate which indicates that carbonate in the A-site is more disruptive to the apatite structure than carbonate in the B-site. High temperature methods were required to produce significant A-type carbonation of apatite, indicating a higher energy barrier for the formation of A-type carbonate than for B-type carbonate. This is consistent with the dominance of B-type carbonate substitution in low temperature synthetic and biological apatites.
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Affiliation(s)
- Honey Madupalli
- Department of Chemistry and Biochemistry and Science of Advanced Materials Program, Central Michigan University, Mt. Pleasant, MI, USA
| | - Barbara Pavan
- Department of Chemistry and Biochemistry and Science of Advanced Materials Program, Central Michigan University, Mt. Pleasant, MI, USA
| | - Mary M J Tecklenburg
- Department of Chemistry and Biochemistry and Science of Advanced Materials Program, Central Michigan University, Mt. Pleasant, MI, USA
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36
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Bergström I, Kerns JG, Törnqvist AE, Perdikouri C, Mathavan N, Koskela A, Henriksson HB, Tuukkanen J, Andersson G, Isaksson H, Goodship AE, Windahl SH. Compressive loading of the murine tibia reveals site-specific micro-scale differences in adaptation and maturation rates of bone. Osteoporos Int 2017; 28:1121-1131. [PMID: 27921145 PMCID: PMC5306148 DOI: 10.1007/s00198-016-3846-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/16/2016] [Indexed: 01/16/2023]
Abstract
Loading increases bone mass and strength in a site-specific manner; however, possible effects of loading on bone matrix composition have not been evaluated. Site-specific structural and material properties of mouse bone were analyzed on the macro- and micro/molecular scale in the presence and absence of axial loading. The response of bone to load is heterogeneous, adapting at molecular, micro-, and macro-levels. INTRODUCTION Osteoporosis is a degenerative disease resulting in reduced bone mineral density, structure, and strength. The overall aim was to explore the hypothesis that changes in loading environment result in site-specific adaptations at molecular/micro- and macro-scale in mouse bone. METHODS Right tibiae of adult mice were subjected to well-defined cyclic axial loading for 2 weeks; left tibiae were used as physiologically loaded controls. The bones were analyzed with μCT (structure), reference point indentation (material properties), Raman spectroscopy (chemical), and small-angle X-ray scattering (mineral crystallization and structure). RESULTS The cranial and caudal sites of tibiae are structurally and biochemically different within control bones. In response to loading, cranial and caudal sites increase in cortical thickness with reduced mineralization (-14 and -3%, p < 0.01, respectively) and crystallinity (-1.4 and -0.3%, p < 0.05, respectively). Along the length of the loaded bones, collagen content becomes more heterogeneous on the caudal site and the mineral/collagen increases distally at both sites. CONCLUSION Bone structure and composition are heterogeneous, finely tuned, adaptive, and site-specifically responsive at the micro-scale to maintain optimal function. Manipulation of this heterogeneity may affect bone strength, relative to specific applied loads.
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Affiliation(s)
- I Bergström
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - J G Kerns
- UCL Institute of Orthopedics and Musculoskeletal Science, Royal National Orthopedic Hospital, London, UK
- Lancaster Medical School, Faculty of Health and Medicine, Lancaster University, Lancaster, LA1 4YG, UK
| | - A E Törnqvist
- Rheumatology and Bone Diseases Unit, Centre for Genomic and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh, EH4 2XU, UK
| | - C Perdikouri
- Department of Biomedical Engineering and Department of Orthopedics, Lund University, Lund, Sweden
| | - N Mathavan
- Department of Biomedical Engineering and Department of Orthopedics, Lund University, Lund, Sweden
| | - A Koskela
- Institute of Cancer and Translational Medicine, Department of Anatomy and Cell Biology, MRC Oulu, University of Oulu, Oulu, Finland
| | - H B Henriksson
- Department of Orthopedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopedics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - J Tuukkanen
- Institute of Cancer and Translational Medicine, Department of Anatomy and Cell Biology, MRC Oulu, University of Oulu, Oulu, Finland
| | - G Andersson
- Department of Laboratory Medicine, Division of Pathology, Karolinska University Hospital, Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - H Isaksson
- Department of Biomedical Engineering and Department of Orthopedics, Lund University, Lund, Sweden
| | - A E Goodship
- UCL Institute of Orthopedics and Musculoskeletal Science, Royal National Orthopedic Hospital, London, UK
- Centre for Comparative and Clinical Anatomy, School of Veterinary Science, University of Bristol, Bristol, UK
| | - S H Windahl
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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Pezzotti G, Adachi T, Gasparutti I, Vincini G, Zhu W, Boffelli M, Rondinella A, Marin E, Ichioka H, Yamamoto T, Marunaka Y, Kanamura N. Vibrational monitor of early demineralization in tooth enamel after in vitro exposure to phosphoridic liquid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:19-33. [PMID: 27588727 DOI: 10.1016/j.saa.2016.08.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 08/15/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
The Raman spectroscopic method has been applied to quantitatively assess the in vitro degree of demineralization in healthy human teeth. Based on previous evaluations of Raman selection rules (empowered by an orientation distribution function (ODF) statistical algorithm) and on a newly proposed analysis of phonon density of states (PDOS) for selected vibrational modes of the hexagonal structure of hydroxyapatite, a molecular-scale evaluation of the demineralization process upon in vitro exposure to a highly acidic beverage (i.e., CocaCola™ Classic, pH=2.5) could be obtained. The Raman method proved quite sensitive and spectroscopic features could be directly related to an increase in off-stoichiometry of the enamel surface structure since the very early stage of the demineralization process (i.e., when yet invisible to other conventional analytical techniques). The proposed Raman spectroscopic algorithm might possess some generality for caries risk assessment, allowing a prompt non-contact diagnostic practice in dentistry.
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Affiliation(s)
- Giuseppe Pezzotti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Department of Molecular Cell Physiology, 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
| | - Isabella Gasparutti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Department of Engineering and Architecture, University of Trieste, Via A. Valerio 6/A, 34127 Trieste, Italy
| | - Giulio Vincini
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan; Chemistry, Material and Chemical Engineering Department "Giulio Natta", Polytechnic of Milan, Via Mancinelli 7, Milan 20131, Italy
| | - Wenliang Zhu
- Department of Medical Engineering for Treatment of Bone and Joint Disorders, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0854, Japan
| | - Marco Boffelli
- 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; Department of Engineering and Architecture, University of Trieste, Via A. Valerio 6/A, 34127 Trieste, Italy
| | - Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, 606-8585 Kyoto, Japan
| | - Hiroaki Ichioka
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Toshiro Yamamoto
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Yoshinori Marunaka
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan; Department of Bio-Ionomics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Narisato Kanamura
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
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Counteracting bone fragility with human amniotic mesenchymal stem cells. Sci Rep 2016; 6:39656. [PMID: 27995994 PMCID: PMC5171815 DOI: 10.1038/srep39656] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 11/24/2016] [Indexed: 02/08/2023] Open
Abstract
The impaired maturation of bone-forming osteoblasts results in reduced bone formation and subsequent bone weakening, which leads to a number of conditions such as osteogenesis imperfecta (OI). Transplantation of human fetal mesenchymal stem cells has been proposed as skeletal anabolic therapy to enhance bone formation, but the mechanisms underlying the contribution of the donor cells to bone health are poorly understood and require further elucidation. Here, we show that intraperitoneal injection of human amniotic mesenchymal stem cells (AFSCs) into a mouse model of OI (oim mice) reduced fracture susceptibility, increased bone strength, improved bone quality and micro-architecture, normalised bone remodelling and reduced TNFα and TGFβ sigalling. Donor cells engrafted into bones and differentiated into osteoblasts but importantly, also promoted endogenous osteogenesis and the maturation of resident osteoblasts. Together, these findings identify AFSC transplantation as a countermeasure to bone fragility. These data have wider implications for bone health and fracture reduction.
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Kaflak A, Chmielewski D, Kolodziejski W. Solid-state NMR study of discrete environments of bone mineral nanoparticles using phosphorus-31 relaxation. J Appl Biomed 2016. [DOI: 10.1016/j.jab.2016.07.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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40
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Frasnelli M, Cristofaro F, Sglavo VM, Dirè S, Callone E, Ceccato R, Bruni G, Cornaglia AI, Visai L. Synthesis and characterization of strontium-substituted hydroxyapatite nanoparticles for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:653-662. [PMID: 27987756 DOI: 10.1016/j.msec.2016.10.047] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/05/2016] [Accepted: 10/23/2016] [Indexed: 01/22/2023]
Abstract
The production of stable suspensions of strontium-substituted hydroxyapatite (Sr-HA) nanopowders, as Sr ions vector for bone tissue regeneration, was carried out in the present work. Sr-HA nanopowders were synthesized via aqueous precipitation methods using Sr2+ amount from 0 to 100mol% and were characterized by several complementary techniques such as solid-state Nuclear Magnetic Resonance spectroscopy, X-ray diffraction, Infrared spectroscopy, N2 physisorption and Transmission Electron Microscopy. The substitution of Ca2+ with Sr2+ in HA is always isomorphic with gradual evolution between the two limit compositions (containing 100% Ca and 100% Sr), this pointing out the homogeneity of the synthesized nanopowders and the complete solubility of strontium in HA lattice. Strontium addition is responsible for an increasing c/a ratio in the triclinic unit cell. A significant variation of the nanopowders shape and dimension is also observed, a preferential growth along the c-axis direction being evident at higher strontium loads. Modifications in the local chemical environment of phosphate and hydroxyl groups in the apatite lattice are also observed. Stable suspensions were produced by dispersing the synthesized nanopowders in bovine serum albumin. Characterization by Dynamic Light Scattering and ζ-potential determination allowed to show that Ca2+→Sr2+ substitution influences the hydrodynamic diameter, which is always twice the particles size determined by TEM, the nanoparticles being always negatively charged as a result from the albumin rearrangement upon the interaction with nanoparticles surface. The biocompatibility of the suspensions was studied in terms of cell viability, apoptosis, proliferation and morphology, using osteosarcoma cell line SAOS-2. The data pointed out an increased cell proliferation for HA nanoparticles containing larger Sr2+ load, the cells morphology remaining essentially unaffected.
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Affiliation(s)
- Matteo Frasnelli
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy; INSTM Research Unit, Via G. Giusti 9, 50123 Firenze, Italy.
| | - Francesco Cristofaro
- Department of Molecular Medicine, Center for Health Technologies (CHT), University of Pavia, Viale Taramelli 3/b, 27100 Pavia, Italy
| | - Vincenzo M Sglavo
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy; INSTM Research Unit, Via G. Giusti 9, 50123 Firenze, Italy
| | - Sandra Dirè
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy; "Klaus Müller" NMR Laboratory, Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Emanuela Callone
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy; "Klaus Müller" NMR Laboratory, Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Riccardo Ceccato
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Giovanna Bruni
- Department of Chemistry, Physical-Chemistry Section, University of Pavia, Viale Taramelli 16, 27100 Pavia (PV), Italy
| | | | - Livia Visai
- Department of Molecular Medicine, Center for Health Technologies (CHT), University of Pavia, Viale Taramelli 3/b, 27100 Pavia, Italy; Department of Occupational Medicine, Toxicology and Environmental Risks, S. Maugeri Foundation, IRCCS, Via S. Boezio, 28, 27100 Pavia (PV), Italy
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41
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Lenton S, Nylander T, Holt C, Sawyer L, Härtlein M, Müller H, Teixeira SCM. Structural studies of hydrated samples of amorphous calcium phosphate and phosphoprotein nanoclusters. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2016; 45:405-12. [PMID: 26780236 DOI: 10.1007/s00249-015-1109-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 11/25/2015] [Accepted: 12/17/2015] [Indexed: 11/28/2022]
Abstract
There are abundant examples of nanoclusters and inorganic microcrystals in biology. Their study under physiologically relevant conditions remains challenging due to their heterogeneity, instability, and the requirements of sample preparation. Advantages of using neutron diffraction and contrast matching to characterize biomaterials are highlighted in this article. We have applied these and complementary techniques to search for nanocrystals within clusters of calcium phosphate sequestered by bovine phosphopeptides, derived from osteopontin or casein. The neutron diffraction patterns show broad features that could be consistent with hexagonal hydroxyapatite crystallites smaller than 18.9 Å. Such nanocrystallites are, however, undetected by the complementary X-ray and FTIR data, collected on the same samples. The absence of a distinct diffraction pattern from the nanoclusters supports the generally accepted amorphous calcium phosphate structure of the mineral core.
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Affiliation(s)
- Samuel Lenton
- EPSAM, Keele University, Staffordshire, ST5 5BG, UK.,Institut Laue-Langevin, 71 Avenue des Martyrs, 38042, Grenoble Cedex 9, France.,School of Physics and Astronomy, Astbury Center for Structural Molecular Biology, University of Leeds, LS2 9JT, Leeds, UK
| | - Tommy Nylander
- Division of Physical Chemistry, Department of Chemistry, Lund University, 124, Lund, S221 00, Sweden
| | - Carl Holt
- Institute of Molecular, Cell, and Systems Biology, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Lindsay Sawyer
- Structural Biochemistry Group, University of Edinburgh, Roger Land Building, The King's Buildings, Mayfield Road, EH9 3JR, Edinburgh, UK
| | - Michael Härtlein
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38042, Grenoble Cedex 9, France
| | - Harrald Müller
- European Synchrotron Radiation Facility, CS 40220, 38043, Grenoble, France
| | - Susana C M Teixeira
- EPSAM, Keele University, Staffordshire, ST5 5BG, UK. .,Institut Laue-Langevin, 71 Avenue des Martyrs, 38042, Grenoble Cedex 9, France.
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42
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Xue C, Chen Y, Huang Y, Zhu P. Hydrothermal Synthesis and Biocompatibility Study of Highly Crystalline Carbonated Hydroxyapatite Nanorods. NANOSCALE RESEARCH LETTERS 2015; 10:1018. [PMID: 26245858 PMCID: PMC4526508 DOI: 10.1186/s11671-015-1018-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 07/25/2015] [Indexed: 06/04/2023]
Abstract
Highly crystalline carbonated hydroxyapatite (CHA) nanorods with different carbonate contents were synthesized by a novel hydrothermal method. The crystallinity and chemical structure of synthesized nanorods were studied by Fourier transform infrared spectroscopy (FTIR), X-ray photo-electronic spectroscopy (XPS), X-ray diffraction (XRD), Raman spectroscopy, and transmission electron microscopy (TEM). The biocompatibility of synthesized CHA nanorods was evaluated by cell viability and alkaline phosphatase (ALP) activity of MG-63 cell line. The biocompatibility evaluation results show that these CHA nanorods are biologically active apatites and potentially promising bone-substitute biomaterials for orthopedic application.
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Affiliation(s)
- Caibao Xue
- />School of Chemistry and Chemical Engineering, Yangzhou University, Jiangsu, 225009 China
| | - Yingzhi Chen
- />Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203 China
| | - Yongzhuo Huang
- />Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203 China
| | - Peizhi Zhu
- />School of Chemistry and Chemical Engineering, Yangzhou University, Jiangsu, 225009 China
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43
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Gul-E-Noor F, Singh C, Papaioannou A, Sinha N, Boutis GS. The Behavior of Water in Collagen and Hydroxyapatite Sites of Cortical Bone: Fracture, Mechanical Wear, and Load Bearing Studies. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2015; 119:21528-21537. [PMID: 26659838 PMCID: PMC4675148 DOI: 10.1021/acs.jpcc.5b06285] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The mechanical properties of cortical bone, which is largely comprised of collagen, hydroxyapatite, and water, are known to hinge on hydration. Recently, the characteristics of water in bone have drawn attention as potential markers of bone quality. We report on the dynamics, diffusion, population, and exchange of water in cortical bone by NMR relaxation and diffusion methodologies. Relaxation measurements over timescales ranging from 0.001 to 4.2 s reveal two distinguishable water environments. Systematic exposure to ethylenediaminetetraacetic acid or collagenase reveals one peak in our 2D relaxation map belonging to water present in the hydroxyapatite rich environment, and a second peak with shorter relaxation times arising from a collagen rich site. Diffusion-T2 measurements allowed for direct measurement of the diffusion coefficient of water in all observable reservoirs. Further, deuterium relaxation methods were applied to study cortical bone under an applied force, following mechanical wear or fracture. The tumbling correlation times of water reduce in all three cases, indicating that water dynamics may be used as a probe of bone quality. Lastly, changes in the relative populations and correlation times of water in bone under an applied force suggest that load bearing occurs largely in the collagen rich environment and is reversible.
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Affiliation(s)
- Farhana Gul-E-Noor
- Department of Physics, Brooklyn College of The City University of New York, Brooklyn, New York 11210, United States
| | - Chandan Singh
- Center of Biomedical Research, SGPGIMS Campus, Raibarelly Road, Lucknow 226014, India
- School of Biotechnology, Banaras Hindu University, Varanasi 221005 India
| | - Antonios Papaioannou
- The Graduate Center of The City University of New York, Department of Physics, New York, United States
| | - Neeraj Sinha
- Center of Biomedical Research, SGPGIMS Campus, Raibarelly Road, Lucknow 226014, India
| | - Gregory S. Boutis
- Department of Physics, Brooklyn College of The City University of New York, Brooklyn, New York 11210, United States
- The Graduate Center of The City University of New York, Department of Physics, New York, United States
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44
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Zhang R, Gong H, Zhu D, Ma R, Fang J, Fan Y. Multi-level femoral morphology and mechanical properties of rats of different ages. Bone 2015; 76:76-87. [PMID: 25857690 DOI: 10.1016/j.bone.2015.03.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 03/24/2015] [Accepted: 03/31/2015] [Indexed: 10/23/2022]
Abstract
A macro-micro-nano-multi-level study was conducted to explore age-related structural and mechanical properties of bone, as well as the effects of aging on bone properties. A total of 70 male Wistar rats were used, ranging in the ages of 1, 3, 5, 7, 9, 11, 14, 15, 16, and 17 months (n = 7/age group). After micro-computed tomography (CT) scanning, longitudinal cortical bone specimens with a length of 5mm were cut along the femoral shaft axis from left femur shafts for mechanical testing, and the cross-sectional areas were measured. The macro-mechanical properties obtained in mechanical testing and microarchitecture parameters measured by micro-CT were significantly correlated with the animal age (r(2) = 0.96, p < 0.001). Scanning electron microscopy was used for detecting the microarchitecture features of the fractured surfaces, which exhibited age-related plate-fibrous-mixed fibrous-plate texture, resulting in changes in macro-mechanical properties (r(2) > 0.90, p < 0.001). The mineral phase of the left femoral shaft and head was analyzed by atomic force microscopy. Longitudinal and transverse trabecular bone tissues, as well as longitudinal cortical bone tissue, were used for nanoindentation test, and the chemical composition was evaluated by quantitative chemical analyses. The correlations between mineral content and bone material properties (i.e., elastic properties of the bone tissue and size and roughness of bone mineral grains) were highly significant (r > 0.95, p < 0.001). Multi-level femur morphology, mechanical property, and mineral content were significantly correlated with the animal age. The correlations between bone mineral content and bone material morphological and mechanical properties may partly explain the increase in bone fragility with aging, which will provide a theoretical basis for the investigation of age-related bone properties in clinics.
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Affiliation(s)
- Rui Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China; Department of Engineering Mechanics, Nanling Campus, Jilin University, Changchun, People's Republic of China
| | - He Gong
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China.
| | - Dong Zhu
- Department of Orthopedic Surgery, No. 1 Hospital of Jilin University, Changchun, People's Republic of China
| | - Renshi Ma
- Department of Orthopedic Surgery, No. 1 Hospital of Jilin University, Changchun, People's Republic of China
| | - Juan Fang
- Department of Engineering Mechanics, Nanling Campus, Jilin University, Changchun, People's Republic of China
| | - Yobo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, People's Republic of China; National Research Center for Rehabilitation Technical Aids, Beijing, People's Republic of China.
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45
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Hammond MA, Wallace JM. Exercise prevents β-aminopropionitrile-induced morphological changes to type I collagen in murine bone. BONEKEY REPORTS 2015; 4:645. [PMID: 25798234 DOI: 10.1038/bonekey.2015.12] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/27/2015] [Indexed: 01/22/2023]
Abstract
This study evaluated the effects of reduced enzymatic crosslinking, exercise and the ability of exercise to prevent the deleterious impact of reduced crosslinking on collagen D-spacing. Eight-week-old female mice were divided into four weight-matched groups receiving daily injections of either phosphate-buffered saline (PBS) or 300 mg kg(-1) β-aminopropionitrile (BAPN) while undergoing normal cage activity (Sed) or 30 min per day of treadmill exercise (Ex) for 21 consecutive days. BAPN caused a downward shift in the D-spacing distribution in Sed BAPN compared with Sed PBS (P<0.001) but not in Ex BAPN (P=0.429), indicating that exercise can prevent changes in collagen morphology caused by BAPN. Exercise had no effect on D-spacing in PBS control mice (P=0.726), which suggests that exercise-induced increases in lysyl oxidase may be a possible mechanism for preventing BAPN-induced changes in D-spacing. The D-spacing changes were accompanied by an increase in mineral crystallinity/maturity due to the main effect of BAPN (P=0.016). However, no changes in nanoindentation, reference point indentation or other Raman spectroscopy parameters were observed. The ability of exercise to rescue BAPN-driven changes in collagen morphology necessitates further research into the use of mechanical stimulation as a preventative therapy for collagen-based diseases.
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Affiliation(s)
- Max A Hammond
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette , Indianapolis, IN, USA
| | - Joseph M Wallace
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette , Indianapolis, IN, USA ; Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis , Indianapolis, IN, USA ; Department of Orthopaedic Surgery, Indiana University School of Medicine , Indianapolis, IN, USA
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46
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Chen J, Yu Z, Zhu P, Wang J, Gan Z, Wei J, Zhao Y, Wei S. Effects of fluorine on the structure of fluorohydroxyapatite: a study by XRD, solid-state NMR and Raman spectroscopy. J Mater Chem B 2015; 3:34-38. [DOI: 10.1039/c4tb01561d] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An atomic snapshot of fluorohydroxyapatites with different fluorine contents by solid state NMR.
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Affiliation(s)
- Jinshuai Chen
- School of Chemistry and Chemical Engineering
- Yangzhou University
- P.R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses
- Yangzhou
| | - Zhiwu Yu
- High Magnetic Field Laboratory
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- P.R. China
| | - Peizhi Zhu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- P.R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses
- Yangzhou
| | - Junfeng Wang
- High Magnetic Field Laboratory
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
- P.R. China
| | - Zhehong Gan
- Center of Interdisciplinary Magnetic Resonance
- National High Magnetic Field Laboratory
- Tallahassee
- USA
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai
- P.R. China
| | - Yinghui Zhao
- Department of Oral and Maxillofacial Surgery
- Laboratory of Interdisciplinary Studies
- School and Hospital of Stomatology
- Peking University
- Beijing 100081
| | - Shicheng Wei
- Department of Oral and Maxillofacial Surgery
- Laboratory of Interdisciplinary Studies
- School and Hospital of Stomatology
- Peking University
- Beijing 100081
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Grunenwald A, Keyser C, Sautereau AM, Crubézy E, Ludes B, Drouet C. Novel contribution on the diagenetic physicochemical features of bone and teeth minerals, as substrates for ancient DNA typing. Anal Bioanal Chem 2014; 406:4691-704. [DOI: 10.1007/s00216-014-7863-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 11/28/2022]
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Li Z, Pasteris JD. Tracing the pathway of compositional changes in bone mineral with age: preliminary study of bioapatite aging in hypermineralized dolphin's bulla. Biochim Biophys Acta Gen Subj 2014; 1840:2331-9. [PMID: 24650888 DOI: 10.1016/j.bbagen.2014.03.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 03/07/2014] [Accepted: 03/11/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND Studies of mineral compositional effects during bone aging are complicated by the presence of collagen. METHODS Hypermineralized bullae of Atlantic bottlenose dolphins of <3months, 2.5years, and 20years underwent micrometer-scale point analysis by Raman spectroscopy and electron microprobe in addition to bulk analysis for carbon. RESULTS Bulla central areas have a mineral content of ~96wt.% and 9-10wt.% carbonate in their bioapatite, which is ~2wt.% more than edge areas. Ca/P atomic ratios (~1.8) and concentrations of Mg, S, and other minor/trace elements are almost constant in central areas over time. Maturity brings greater over-all homogeneity in mineral content, stoichiometry, and morphology throughout the central and edge areas of the bullae. During aging, edge areas become less porous, whereas the concentration of organics in the edge is reduced. Enhancement of coupled substitutions of CO3(2-) for PO4(3-) and Na for Ca during aging increases carbonate content up to ~10wt.% in the adult bulla. CONCLUSIONS 1) Changes in physical properties during aging did not occur simultaneously with changes in chemical properties of the bone mineral. 2) Compositional changes in bone mineral were minor during the neonatal to sub-adult stage, but significant during later maturity. 3) Na and CO3 concentrations co-vary in a 1:1 molar proportion during aging. 4) The mineral's crystallinity did not decrease as CO3 concentration increased during aging. GENERAL SIGNIFICANCE Hypermineralized dolphin's bulla, due to extreme depletion in collagen, is an ideal material for investigating mineralogical changes in bioapatite during bone aging.
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Affiliation(s)
- Zhen Li
- Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Jill D Pasteris
- Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO 63130, USA.
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