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Bazin D. Nanomaterials in medicine: a concise review of nanomaterials intended to treat pathology, nanomaterials induced by pathology, and pathology provoked by nanomaterials. CR CHIM 2022. [DOI: 10.5802/crchim.194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Bazin D, Daudon M, Frochot V, Haymann JP, Letavernier E. Foreword to microcrystalline pathologies: combining clinical activity and fundamental research at the nanoscale. CR CHIM 2022. [DOI: 10.5802/crchim.200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Bazin D, Lucas IT, Rouzière S, Elkaim E, Mocuta C, Réguer S, Reid DG, Mathurin J, Dazzi A, Deniset-Besseau A, Petay M, Frochot V, Haymann JP, Letavernier E, Verpont MC, Foy E, Bouderlique E, Colboc H, Daudon M. Profile of an “at cutting edge” pathology laboratory for pathological human deposits: from nanometer to in vivo scale analysis on large scale facilities. CR CHIM 2022. [DOI: 10.5802/crchim.199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Bazin D, Reguer S, Vantelon D, Haymann JP, Letavernier E, Frochot V, Daudon M, Esteve E, Colboc H. XANES spectroscopy for the clinician. CR CHIM 2022. [DOI: 10.5802/crchim.129] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Gauffenic A, Bazin D, Combes C, Daudon M, Ea HK. Pathological calcifications in the human joint. CR CHIM 2022. [DOI: 10.5802/crchim.193] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Bazin D, Bouderlique E, Daudon M, Frochot V, Haymann JP, Letavernier E, Tielens F, Weil R. Scanning electron microscopy—a powerful imaging technique for the clinician. CR CHIM 2022. [DOI: 10.5802/crchim.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kantrong N, Khongkhaphet K, Sitornsud N, Lo-apirukkul P, Phanprom W, Rojviriya C, Amonpattaratkit P, Ariyakriangkai W. Synchrotron radiation analysis of root dentin: the roles of fluoride and calcium ions in hydroxyapatite remineralization. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:496-504. [PMID: 35254314 PMCID: PMC8900867 DOI: 10.1107/s1600577521013655] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/28/2021] [Indexed: 05/28/2023]
Abstract
Although the use of fluoride for root caries control is reported to be effective, the mechanism of maintaining hydroxyapatite is still unclear. This study elucidates the roles of fluoride in the recrystallization of hydroxyapatite, and the impact of calcium to maintain the abundance of hydroxyapatite on acid-challenged root dentin with a novel approach - using synchrotron radiation. Root dentin samples obtained from 40 extracted human premolars were subjected to pH challenge in combination with fluoride treatment. The effect of fluoride on hydroxyapatite regeneration on the root was investigated by using a range of fluoride concentrations (1000-5000 p.p.m.) and the EDTA-chelation technique in vitro. Synchrotron radiation X-ray micro-computed tomography and X-ray absorption spectroscopy were utilized to characterize the chemical composition of calcium species on the surface of prepared samples. The percentage of hydroxyapatite and the relative abundance of calcium species were subsequently compared between groups. The absence of calcium or fluoride prevented the complete remineralization of hydroxyapatite on the surface of early root caries. Different concentrations of fluoride exposure did not affect the relative abundance of hydroxyapatite. Sufficient potency of 1000 p.p.m. fluoride solution in promoting hydroxyapatite structural recrystallization on the root was demonstrated. Both calcium and fluoride ions are prerequisites in a caries-prone environment. Orchestration of F- and Ca2+ is required for structural homeostasis of root dentin during acid attack. Sustainable levels of F- and Ca2+ might thus be a strict requirement in the saliva of the population prone to root caries. Fluoride and calcium contribute to structural homeostasis of tooth root, highlighting that routine fluoride use in combination with calcium replenishment is recommended for maintaining dental health. This study also demonstrates that utilization of synchrotron radiation could provide a promising experimental platform for laboratory investigation especially in the dental material research field.
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Affiliation(s)
- Nutthapong Kantrong
- Department of Restorative Dentistry, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
- Oral Biology Research Unit, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
- Research Group of Chronic Inflammatory Oral Diseases and Systemic Disease Associated with Oral Health, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
| | - Krassawan Khongkhaphet
- Research Group of Chronic Inflammatory Oral Diseases and Systemic Disease Associated with Oral Health, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
| | - Nutnicha Sitornsud
- Research Group of Chronic Inflammatory Oral Diseases and Systemic Disease Associated with Oral Health, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
| | - Pakaporn Lo-apirukkul
- Research Group of Chronic Inflammatory Oral Diseases and Systemic Disease Associated with Oral Health, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
| | - Waraporn Phanprom
- Oral Biology Research Unit, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
- Research Group of Chronic Inflammatory Oral Diseases and Systemic Disease Associated with Oral Health, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand
| | | | | | - Watcharaphong Ariyakriangkai
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
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Hawellek T, Hubert J, Hischke S, Krause M, Bertrand J, Schmidt BC, Kronz A, Püschel K, Rüther W, Niemeier A. Calcification of the acetabular labrum of the hip: prevalence in the general population and relation to hip articular cartilage and fibrocartilage degeneration. Arthritis Res Ther 2018; 20:104. [PMID: 29848355 PMCID: PMC5977492 DOI: 10.1186/s13075-018-1595-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 04/17/2018] [Indexed: 12/25/2022] Open
Abstract
Background Meniscal calcification is considered to play a relevant role in the pathogenesis of osteoarthritis of the knee. Little is known about the biology of acetabular labral disease and its importance in hip pathology. Here, we analyze for the first time the calcification of the acetabular labrum of the hip (ALH) and its relation to hip cartilage degeneration. Methods In this cross-sectional post-mortem study of an unselected sample of the general population, 170 ALH specimens and 170 femoral heads from 85 donors (38 female, 47 male; mean age 62.1 years) were analyzed by high-resolution digital contact radiography (DCR) and histological degeneration grade. The medial menisci (MM) from the same 85 donors served as an intra-individual reference for cartilage calcification (CC). Scanning electron microscopy (SEM), energy dispersive analysis (ED) and Raman spectroscopy were performed for characterization of ALH CC. Results The prevalence of CC in the ALH was 100% and that in the articular cartilage of the hip (ACH) was 96.5%. Quantitative analysis revealed that the amount of ALH CC was higher than that in the ACH (factor 3.0, p < 0.001) and in the MM (factor 1.3, p < 0.001). There was significant correlation between the amount of CC in the fibrocartilage of the left and right ALH (r = 0.70, p < 0.001). Independent of age, the amount of ALH CC correlated with histological degeneration of the ALH (Krenn score) (r = 0.55; p < 0.001) and the ACH (Osteoarthritis Research Society International (OARSI), r = 0.69; p < 0.001). Calcification of the ALH was characterized as calcium pyrophosphate dihydrate deposition. Conclusion The finding that ALH fibrocartilage is a strongly calcifying tissue is unexpected and novel. The fact that ALH calcification correlates with cartilage degeneration independent of age is suggestive of an important role of ALH calcification in osteoarthritis of the hip and renders it a potential target for the prevention and treatment of hip joint degeneration.
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Affiliation(s)
- Thelonius Hawellek
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
| | - Jan Hubert
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Sandra Hischke
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Krause
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guerricke-University Magdeburg, Magdeburg, Germany
| | - Burkhard C Schmidt
- Centrum of Geoscience, Georg-August-University Göttingen, Göttingen, Germany
| | - Andreas Kronz
- Centrum of Geoscience, Georg-August-University Göttingen, Göttingen, Germany
| | - Klaus Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wolfgang Rüther
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - Andreas Niemeier
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
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Hubert J, Weiser L, Hischke S, Uhlig A, Rolvien T, Schmidt T, Butscheidt SK, Püschel K, Lehmann W, Beil FT, Hawellek T. Cartilage calcification of the ankle joint is associated with osteoarthritis in the general population. BMC Musculoskelet Disord 2018; 19:169. [PMID: 29793463 PMCID: PMC5968601 DOI: 10.1186/s12891-018-2094-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 05/16/2018] [Indexed: 12/17/2022] Open
Abstract
Background Cartilage calcification (CC) is associated with osteoarthritis (OA) in weight-bearing joints, such as the hip and the knee. However, little is known about the impact of CC and degeneration on other weight-bearing joints, especially as it relates to the occurrence of OA in the ankles. The goal of this study is to analyse the prevalence of ankle joint cartilage calcification (AJ CC) and to determine its correlation with factors such as histological OA grade, age and BMI in the general population. Methods CC of the distal tibia and talus in 160 ankle joints obtained from 80 donors (mean age 62.4 years, 34 females, 46 males) was qualitatively and quantitatively analysed using high-resolution digital contact radiography (DCR). Correlations with factors, such as the joint’s histological OA grade (OARSI score), donor’s age and BMI, were investigated. Results The prevalence of AJ CC was 51.3% (95% CI [0.40, 0.63]), independent of gender (p = 0.18) and/or the joint’s side (p = 0.82). CC of the distal tibia was detected in 35.0% (28/80) (95% CI [0.25, 0.47]) and talar CC in 47.5% (38/80) (95% CI [0.36, 0.59]) of all cases. Significant correlations were noted between the mean amount of tibial and talar CC (r = 0.59, p = 0.002), as well as between the mean amount of CC observed in one ankle joint with that of the contralateral side (r = 0.52, p = 0.02). Furthermore, although the amount of AJ CC observed in the distal tibia and talus correlated with the histological OA-grade of the joint (r = 0.70, p < 0.001 and r = 0.72, p < 0.001, respectively), no such correlation was seen in the general population with relation to age (p = 0.32 and p = 0.49) or BMI (p = 0.51 and p = 0.87). Conclusion The prevalence of AJ CC in the general population is much higher than expected. The relationship between the amount of AJ CC and OA, independent of the donors’ age and BMI, indicates that CC may play a causative role in the development of OA in ankles.
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Affiliation(s)
- Jan Hubert
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
| | - Lukas Weiser
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
| | - Sandra Hischke
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Annemarie Uhlig
- Department of Urology, University Medical Center Göttingen, Göttingen, Germany
| | - Tim Rolvien
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Schmidt
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sebastian Karl Butscheidt
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Klaus Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wolfgang Lehmann
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
| | - Frank Timo Beil
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany
| | - Thelonius Hawellek
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Germany.
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Hawellek T, Hubert J, Hischke S, Rolvien T, Krause M, Püschel K, Rüther W, Niemeier A. Microcalcification of lumbar spine intervertebral discs and facet joints is associated with cartilage degeneration, but differs in prevalence and its relation to age. J Orthop Res 2017; 35:2692-2699. [PMID: 28467655 DOI: 10.1002/jor.23591] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 04/24/2017] [Indexed: 02/04/2023]
Abstract
Cartilage calcification (CC) is associated with degeneration in non-vertebral joints, but little is known about CC and lumbar vertebral joints. The goal of this study was to analyze the prevalence of CC in lumbar facet joints (FJ) and intervertebral discs (IVD) and its relation to cartilage degeneration and age in a non-selected cohort of the general population. The segment L4/5 of 85 consecutive donors (mean age 61.9 years) was analyzed by high-resolution imaging digital-contact radiography (DCR). Quantification was achieved by measuring CC in % of total cartilage area. Histological degeneration of FJs and IVDs was determined by OARSI and Boos scores. Prevalence of CC was 36.5% for FJ (95%CI (0.26, 0.48)) and 100% for IVD (95%CI (0.96, 1.00)). The amount of IVD CC (3.36% SD ± 7.14) was 16.3 times higher (p < 0.001) than that of the FJ (0.23% SD ± 0.53) and independent of each other (p = 0.07). The amount of FJ CC correlated significantly with FJ and IVD degeneration (FJ r = 0.44, p = 0.01, IVD r = 0.49, p = 0.006) while the amount of IVD CC correlated only with IVD degeneration (r = 0.54, p < 0.001). Age correlated with IVD CC (rs = 0.35, p < 0.001), but not FJ CC (rs = 0.04, p = 0.85). We conclude that IVD fibrocartilage is particularly prone to calcification. A causal relationship between lumbar CC and degeneration is possible, but the clear differences in IVD fibrocartilage CC and FJ synovial joint CC in regard to prevalence and in relation to age point to a differential role of CC in single compartments of the respective motion segment in lumbar spine degeneration. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2692-2699, 2017.
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Affiliation(s)
- Thelonius Hawellek
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Hubert
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sandra Hischke
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tim Rolvien
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Krause
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Klaus Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wolfgang Rüther
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Niemeier
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Esteve E, Reguer S, Boissiere C, Chanéac C, Lugo G, Jouanneau C, Mocuta C, Thiaudière D, Leclercq N, Leyh B, Greisch JF, Berthault J, Daudon M, Ronco P, Bazin D. Flyscan opportunities in medicine: the case of quantum rattle based on gold quantum dots. JOURNAL OF SYNCHROTRON RADIATION 2017; 24:991-999. [PMID: 28862621 DOI: 10.1107/s1600577517009572] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
The new rapid scan method, Flyscan mode, implemented on the DiffAbs beamline at Synchrotron SOLEIL, allows fast micro-X-ray fluorescence data acquisition. It paves the way for applications in the biomedical field where a large amount of data is needed to generate meaningful information for the clinician. This study presents a complete set of data acquired after injection of gold-cluster-enriched mesoporous silica nanospheres, used as potential theranostic vectors, into rats. While classical X-ray fluorescence investigations (using step-by-step acquisitions) are based on a limited number of samples (approximately one per day at the DiffAbs beamline), the Flyscan mode has enabled gathering information on the interaction of nanometer-scale vectors in different organs such as liver, spleen and kidney at the micrometer scale, for five rats, in only a single five-day synchrotron shift. Moreover, numerous X-ray absorption near-edge structure spectra, which are beam-time-consuming taking into account the low concentration of these theranostic vectors, were collected.
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Affiliation(s)
- Emmanuel Esteve
- UMR S1155, INSERM/UPMC, 4 Rue de la Chine, 75970 Paris Cedex 20, France
| | - Solenn Reguer
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Cédric Boissiere
- Laboratoire Chimie de la Matière Condensée de Paris, UMR UPMC College de France - CNRS 7574, Université Pierre et Marie Curie (Paris 6), 4 Place Jussieu, 75252 Paris, France
| | - Corinne Chanéac
- Laboratoire Chimie de la Matière Condensée de Paris, UMR UPMC College de France - CNRS 7574, Université Pierre et Marie Curie (Paris 6), 4 Place Jussieu, 75252 Paris, France
| | - Gustavo Lugo
- Laboratoire Chimie de la Matière Condensée de Paris, UMR UPMC College de France - CNRS 7574, Université Pierre et Marie Curie (Paris 6), 4 Place Jussieu, 75252 Paris, France
| | - Chantal Jouanneau
- UMR S1155, INSERM/UPMC, 4 Rue de la Chine, 75970 Paris Cedex 20, France
| | - Cristian Mocuta
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Dominique Thiaudière
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Nicolas Leclercq
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Bernard Leyh
- Department of Chemistry, University of Liège, B4000 Liège, Belgium
| | - Jean François Greisch
- Karlsruhe Institute of Technology, Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Julien Berthault
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Michel Daudon
- UMR S1155, INSERM/UPMC, 4 Rue de la Chine, 75970 Paris Cedex 20, France
| | - Pierre Ronco
- UMR S1155, INSERM/UPMC, 4 Rue de la Chine, 75970 Paris Cedex 20, France
| | - Dominique Bazin
- Laboratoire Chimie de la Matière Condensée de Paris, UMR UPMC College de France - CNRS 7574, Université Pierre et Marie Curie (Paris 6), 4 Place Jussieu, 75252 Paris, France
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Singh C, Wang X. Metal Ion-Loaded Nanofibre Matrices for Calcification Inhibition in Polyurethane Implants. J Funct Biomater 2017. [PMID: 28644382 PMCID: PMC5618273 DOI: 10.3390/jfb8030022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Pathologic calcification leads to structural deterioration of implant materials via stiffening, stress cracking, and other structural disintegration mechanisms, and the effect can be critical for implants intended for long-term or permanent implantation. This study demonstrates the potential of using specific metal ions (MI)s for inhibiting pathological calcification in polyurethane (PU) implants. The hypothesis of using MIs as anti-calcification agents was based on the natural calcium-antagonist role of Mg2+ ions in human body, and the anti-calcification effect of Fe3+ ions in bio-prosthetic heart valves has previously been confirmed. In vitro calcification results indicated that a protective covering mesh of MI-doped PU can prevent calcification by preventing hydroxyapatite crystal growth. However, microstructure and mechanical characterisation revealed oxidative degradation effects from Fe3+ ions on the mechanical properties of the PU matrix. Therefore, from both a mechanical and anti-calcification effects point of view, Mg2+ ions are more promising candidates than Fe3+ ions. The in vitro MI release experiments demonstrated that PU microphase separation and the structural design of PU-MI matrices were important determinants of release kinetics. Increased phase separation in doped PU assisted in consistent long-term release of dissolved MIs from both hard and soft segments of the PU. The use of a composite-sandwich mesh design prevented an initial burst release which improved the late (>20 days) release rate of MIs from the matrix.
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Affiliation(s)
- Charanpreet Singh
- Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia.
| | - Xungai Wang
- Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia.
- School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China.
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Chappard C, André G, Daudon M, Bazin D. Analysis of hydroxyapatite crystallites in subchondral bone by Fourier transform infrared spectroscopy and powder neutron diffraction methods. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.03.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Rouzière S, Bazin D, Daudon M. In-lab X-ray fluorescence and diffraction techniques for pathological calcifications. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.05.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Cros J, Bazin D, Kellum A, Rebours V, Daudon M. Investigation at the micrometer scale of pancreatic calcifications in chronic pancreatitis by μFTIR spectroscopy and field emission scanning electron microscopy. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.06.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Esteve E, Bazin D, Jouanneau C, Rouzière S, Bataille A, Kellum A, Provost K, Mocuta C, Reguer S, Jorissen K, Rehr JJ, Hertig A, Rondeau E, Letavernier E, Haymann JP, Daudon M, Ronco P. How to assess the role of Pt and Zn in the nephrotoxicity of Pt anti-cancer drugs?: An investigation combining μXRF and statistical analysis. Part II: Clinical application. CR CHIM 2016. [DOI: 10.1016/j.crci.2016.02.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ben Lakhdar A, Daudon M, Mathieu MC, Kellum A, Balleyguier C, Bazin D. Underlining the complexity of the structural and chemical characteristics of ectopic calcifications in breast tissues through FE-SEM and μFTIR spectroscopy. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Reguer S, Mocuta C, Thiaudière D, Daudon M, Bazin D. Combination of X-ray synchrotron radiation techniques to gather information for clinicians. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Bazin D, Leroy C, Tielens F, Bonhomme C, Bonhomme-Coury L, Damay F, Le Denmat D, Sadoine J, Rode J, Frochot V, Letavernier E, Haymann JP, Daudon M. Hyperoxaluria is related to whewellite and hypercalciuria to weddellite: What happens when crystalline conversion occurs? CR CHIM 2016. [DOI: 10.1016/j.crci.2015.12.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Estève E, Bazin D, Jouanneau C, Rouzière S, Bataille A, Kellum A, Provost K, Mocuta C, Reguer S, Thiaudière D, Jorissen K, Rehr JJ, Hertig A, Rondeau É, Letavernier E, Daudon M, Ronco P. How to assess the role of Pt and Zn in the nephrotoxicity of Pt anti-cancer drugs? An investigation combining μXRF and statistical analysis: Part I: On mice. CR CHIM 2016. [DOI: 10.1016/j.crci.2016.03.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Bazin D, Letavernier E, Haymann JP, Méria P, Daudon M. [The role of physicochemistry in urology and nephrology, selected results obtained during the last ten years]. Prog Urol 2016; 26:608-618. [PMID: 27665409 DOI: 10.1016/j.purol.2016.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 08/05/2016] [Accepted: 08/22/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The presence of pathological calcifications, which can be either concretions or ectopic call for physicochemical characterisation techniques in order to define a significant diagnosis. The aim of this review is to present a set of characterisation techniques able to describe at the micrometer scale their structural and chemical characteristics and show their place at the hospital. METHOD Results already published in the last ten years based on characterisation techniques present in laboratories or specific to large-scale instruments are presented. Their usefulness for the clinician is discussed. RESULTS The presence and role of heavy metals in urinary stones through data collected through μX-ray fluorescence is debated. If these data suggest a simple substitution process of calcium, recent data suggest that weddellite is associated to a Zn-rich environment, partly favoured by an inflammation process. Investigation on the chemistry and the structure of unusual deposits in kidney biopsies show a great chemical diversity of ectopic calcifications. Such diversity shows that staining procedures to characterize such deposits are obsolete. Finally, several diseases which can be assessed through techniques specific to large-scale instruments and defined by the clinician are presented. CONCLUSION The chemical and structural complexity of pathological calcifications call for a characterization through physicochemical techniques. Only such approach allows the clinician to define a significant diagnosis and to care the patient.
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Affiliation(s)
- D Bazin
- Laboratoire de chimie de la matière condensée de Paris (LCMCP), collège de France, Sorbonne universités, UPMC université Paris 06, UMR CNRS 7574, 11, place Marcelin-Berthelot, 75005 Paris, France; Laboratoire de physique des solides, université Paris XI, 91405 Orsay cedex, France.
| | - E Letavernier
- Service d'explorations fonctionnelles, hôpital Tenon, AP-HP, 4, rue de la Chine, 75970 Paris cedex 20, France; Inserm, UMRS 1155, UPMC, hôpital Tenon, 75970 Paris, France
| | - J-P Haymann
- Service d'explorations fonctionnelles, hôpital Tenon, AP-HP, 4, rue de la Chine, 75970 Paris cedex 20, France; Inserm, UMRS 1155, UPMC, hôpital Tenon, 75970 Paris, France
| | - P Méria
- Service d'urologie, hôpital St-Louis, 1, avenue C.-Vellefaux, 75010 Paris, France
| | - M Daudon
- Service d'explorations fonctionnelles, hôpital Tenon, AP-HP, 4, rue de la Chine, 75970 Paris cedex 20, France; Inserm, UMRS 1155, UPMC, hôpital Tenon, 75970 Paris, France
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Nasi S, So A, Combes C, Daudon M, Busso N. Interleukin-6 and chondrocyte mineralisation act in tandem to promote experimental osteoarthritis. Ann Rheum Dis 2015; 75:1372-9. [PMID: 26253096 DOI: 10.1136/annrheumdis-2015-207487] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 07/14/2015] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Basic calcium phosphate (BCP) crystal and interleukin 6 (IL-6) have been implicated in osteoarthritis (OA). We hypothesise that these two factors may be linked in a reciprocal amplification loop which leads to OA. METHODS Primary murine chondrocytes and human cartilage explants were incubated with hydroxyapatite (HA) crystals, a form of BCP, and the modulation of cytokines and matrix-degrading enzymes assayed. The ability of IL-6 to stimulate chondrocyte calcification was assessed in vitro. The mechanisms underlying the effects of HA on chondrocytes were investigated using chemical inhibitors, and the pathways mediating IL-6-induced calcification characterised by quantifying the expression of genes involved in chondrocyte mineralisation. The role of calcification in vivo was studied in the meniscectomy model of murine OA (MNX), and the link between IL-6 and cartilage degradation investigated by histology. RESULTS In chondrocytes, BCP crystals stimulated IL-6 secretion, further amplified in an autocrine loop, through signalling pathways involving Syk and PI3 kinases, Jak2 and Stat3 molecules. Exogenous IL-6 promoted calcium-containing crystal formation and upregulation of genes involved in calcification: the pyrophosphate channel Ank, the calcium channel Annexin5 and the sodium/phosphate cotransporter Pit-1. Treatment of chondrocytes with IL-6 inhibitors significantly inhibited IL-6-induced crystal formation. In meniscectomised mice, increasing deposits of BCP crystals were observed around the joint and correlated with cartilage degradation and IL-6 expression. Finally, BCP crystals induced proteoglycan loss and IL-6 expression in human cartilage explants, which were reduced by an IL-6 inhibitor. CONCLUSIONS BCP crystals and IL-6 form a positive feedback loop leading to OA. Targeting calcium-containing crystal formation and/or IL-6 are promising therapeutic strategies in OA.
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Affiliation(s)
- Sonia Nasi
- Service of Rheumatology, Department of Musculoskeletal Medicine, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Alexander So
- Service of Rheumatology, Department of Musculoskeletal Medicine, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Christèle Combes
- CIRIMAT, UMR 5085 INPT-UPS-CNRS, Université de Toulouse, ENSIACET, Toulouse, France
| | - Michel Daudon
- AP-HP, service d'Explorations Fonctionnelles, hôpital Tenon, Paris, France
| | - Nathalie Busso
- Service of Rheumatology, Department of Musculoskeletal Medicine, CHUV and University of Lausanne, Lausanne, Switzerland
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Martin-Diaconescu V, Gennari M, Gerey B, Tsui E, Kanady J, Tran R, Pécaut J, Maganas D, Krewald V, Gouré E, Duboc C, Yano J, Agapie T, Collomb MN, DeBeer S. Ca K-edge XAS as a probe of calcium centers in complex systems. Inorg Chem 2015; 54:1283-92. [PMID: 25492398 PMCID: PMC4331723 DOI: 10.1021/ic501991e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Indexed: 12/21/2022]
Abstract
Herein, Ca K-edge X-ray absorption spectroscopy (XAS) is developed as a means to characterize the local environment of calcium centers. The spectra for six, seven, and eight coordinate inorganic and molecular calcium complexes were analyzed and determined to be primarily influenced by the coordination environment and site symmetry at the calcium center. The experimental results are closely correlated to time-dependent density functional theory (TD-DFT) calculations of the XAS spectra. The applicability of this methodology to complex systems was investigated using structural mimics of the oxygen-evolving complex (OEC) of PSII. It was found that Ca K-edge XAS is a sensitive probe for structural changes occurring in the cubane heterometallic cluster due to Mn oxidation. Future applications to the OEC are discussed.
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Affiliation(s)
- Vlad Martin-Diaconescu
- Max Planck Institute
for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Marcello Gennari
- Univ. Grenoble Alpes, DCM and
CNRS, DCM, F-38000 Grenoble, France
| | - Bertrand Gerey
- Univ. Grenoble Alpes, DCM and
CNRS, DCM, F-38000 Grenoble, France
| | - Emily Tsui
- California Institute of
Technology, Department of Chemistry, Pasadena, California 91125, United States
| | - Jacob Kanady
- California Institute of
Technology, Department of Chemistry, Pasadena, California 91125, United States
| | - Rosalie Tran
- Lawrence Berkeley National Laboratory − Physical Biosciences Division, Berkeley, California 94720, United States
| | - Jacques Pécaut
- Laboratoire de Reconnaissance Ionique
et Chimie de Coordination (LCIB, SCIB, INAC, CEA Grenoble), 38054 Grenoble
Cedex 9, France
| | - Dimitrios Maganas
- Max Planck Institute
for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Vera Krewald
- Max Planck Institute
for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Eric Gouré
- Univ. Grenoble Alpes, DCM and
CNRS, DCM, F-38000 Grenoble, France
| | - Carole Duboc
- Univ. Grenoble Alpes, DCM and
CNRS, DCM, F-38000 Grenoble, France
| | - Junko Yano
- Lawrence Berkeley National Laboratory − Physical Biosciences Division, Berkeley, California 94720, United States
| | - Theodor Agapie
- California Institute of
Technology, Department of Chemistry, Pasadena, California 91125, United States
| | | | - Serena DeBeer
- Max Planck Institute
for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
- Department of Chemistry and Chemical
Biology, Cornell University, Ithaca, New York 14853, United States
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Revisiting spatial distribution and biochemical composition of calcium-containing crystals in human osteoarthritic articular cartilage. Arthritis Res Ther 2014; 15:R103. [PMID: 24004678 PMCID: PMC3978672 DOI: 10.1186/ar4283] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 04/04/2012] [Accepted: 09/03/2013] [Indexed: 11/13/2022] Open
Abstract
Introduction Calcium-containing (CaC) crystals, including basic calcium phosphate (BCP) and calcium pyrophosphate dihydrate (CPP), are associated with destructive forms of osteoarthritis (OA). We assessed their distribution and biochemical and morphologic features in human knee OA cartilage. Methods We prospectively included 20 patients who underwent total knee replacement (TKR) for primary OA. CaC crystal characterization and identification involved Fourier-transform infra-red spectrometry and scanning electron microscopy of 8 to 10 cartilage zones of each knee, including medial and lateral femoral condyles and tibial plateaux and the intercondyle zone. Differential expression of genes involved in the mineralization process between cartilage with and without calcification was assessed in samples from 8 different patients by RT-PCR. Immunohistochemistry and histology studies were performed in 6 different patients. Results Mean (SEM) age and body mass index of patients at the time of TKR was 74.6 (1.7) years and 28.1 (1.6) kg/m², respectively. Preoperative X-rays showed joint calcifications (chondrocalcinosis) in 4 cases only. The medial femoro-tibial compartment was the most severely affected in all cases, and mean (SEM) Kellgren-Lawrence score was 3.8 (0.1). All 20 OA cartilages showed CaC crystals. The mineral content represented 7.7% (8.1%) of the cartilage weight. All patients showed BCP crystals, which were associated with CPP crystals for 8 joints. CaC crystals were present in all knee joint compartments and in a mean of 4.6 (1.7) of the 8 studied areas. Crystal content was similar between superficial and deep layers and between medial and femoral compartments. BCP samples showed spherical structures, typical of biological apatite, and CPP samples showed rod-shaped or cubic structures. The expression of several genes involved in mineralization, including human homolog of progressive ankylosis, plasma-cell-membrane glycoprotein 1 and tissue-nonspecific alkaline phosphatase, was upregulated in OA chondrocytes isolated from CaC crystal-containing cartilages. Conclusions CaC crystal deposition is a widespread phenomenon in human OA articular cartilage involving the entire knee cartilage including macroscopically normal and less weight-bearing zones. Cartilage calcification is associated with altered expression of genes involved in the mineralisation process.
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Bazin D, Daudon M, André G, Weil R, Véron E, Matzen G. Therapy modifies cystine kidney stones at the macroscopic scale. Do such alterations exist at the mesoscopic and nanometre scale? J Appl Crystallogr 2014. [DOI: 10.1107/s1600576714004658] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
With an incidence of 1:7000 births, cystinuria, the most frequent cause of stone formation among genetic diseases, represents a major medical problem. Twenty-five cystine stones randomly selected from cystinuric patients were investigated. From a crystallographic point of view, cystine stones are composed of micrometre size crystallites, which are made up of an aggregation of nanocrystals. Through scanning electron microscopy, the morphology and size of the crystallites have been described, while the size of the nanocrystals was investigated by means of powder neutron diffraction. Powder neutron diffraction analysis and/or scanning electron microscopy examination of cystine stones provide evidence that usual alkalinization by sodium bicarbonate associated with high diuresis significantly reduces the size of both nanocrystals and crystallites, while for other treatments, including alkalinizing drugs and thiol derivatives, the data suggest mainly changes in the topology of crystallites. Alkalinization with sodium bicarbonate affects cystine kidney stones at the mesoscopic and nanoscopic scales, while other medical treatments only alter their surface. Such an approach may help to assess the interaction between drugs and cystine stones in cystinuric patients.
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Frankær CG, Raffalt AC, Stahl K. Strontium localization in bone tissue studied by X-ray absorption spectroscopy. Calcif Tissue Int 2014; 94:248-57. [PMID: 24101232 DOI: 10.1007/s00223-013-9806-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022]
Abstract
Strontium has recently been introduced as a pharmacological agent for the treatment and prevention of osteoporosis. We determined the localization of strontium incorporated into bone matrix from dogs treated with Sr malonate by X-ray absorption spectroscopy. A new approach for analyzing the X-ray absorption spectra resulted in a compositional model and allowed the relative distribution of strontium in the different bone components to be estimated. Approximately 35-45% of the strontium present is incorporated into calcium hydroxyapatite (CaHA) by substitution of some of the calcium ions occupying highly ordered sites, and at least 30% is located at less ordered sites where only the first solvation shell is resolved, suggesting that strontium is surrounded by only oxygen atoms similar to Sr(2+) in solution. Strontium was furthermore shown to be absorbed in collagen in which it obtains a higher structural order than when present in serum but less order than when it is incorporated into CaHA. The total amount of strontium in the samples was determined by inductively coupled plasma mass spectrometry, and the amount of Sr was found to increase with increasing dose levels and treatment periods, whereas the relative distribution of strontium among the different components appears to be independent of treatment period and dose level.
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27
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Bazin D, Dessombz A, Nguyen C, Ea HK, Lioté F, Rehr J, Chappard C, Rouzière S, Thiaudière D, Reguer S, Daudon M. The status of strontium in biological apatites: an XANES/EXAFS investigation. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:136-142. [PMID: 24365928 DOI: 10.1107/s1600577513023771] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 08/22/2013] [Indexed: 06/03/2023]
Abstract
Osteoporosis represents a major public health problem through its association with fragility fractures. The public health burden of osteoporotic fractures will rise in future generations, due in part to an increase in life expectancy. Strontium-based drugs have been shown to increase bone mass in postmenopausal osteoporosis patients and to reduce fracture risk but the molecular mechanisms of the action of these Sr-based drugs are not totally elucidated. The local environment of Sr(2+) cations in biological apatites present in pathological and physiological calcifications in patients without such Sr-based drugs has been assessed. In this investigation, X-ray absorption spectra have been collected for 17 pathological and physiological calcifications. These experimental data have been combined with a set of numerical simulations using the ab initio FEFF9 X-ray spectroscopy program which takes into account possible distortion and Ca/Sr substitution in the environment of the Sr(2+) cations. For selected samples, Fourier transforms of the EXAFS modulations have been performed. The complete set of experimental data collected on 17 samples indicates that there is no relationship between the nature of the calcification (physiological and pathological) and the adsorption mode of Sr(2+) cations (simple adsorption or insertion). Such structural considerations have medical implications. Pathological and physiological calcifications correspond to two very different preparation procedures but are associated with the same localization of Sr(2+) versus apatite crystals. Based on this study, it seems that for supplementation of Sr at low concentration, Sr(2+) cations will be localized into the apatite network.
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Affiliation(s)
- Dominique Bazin
- CNRS-LCMCP-UPMC, Collège de France, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Arnaud Dessombz
- Laboratoire de Physique des Solides, Université Paris XI, Bâtiment 510, 91405 Orsay, France
| | | | - Hang Korng Ea
- INSERM, UMR-S 606, Lariboisière Hospital, F-75010 Paris, France
| | - Frédéric Lioté
- INSERM, UMR-S 606, Lariboisière Hospital, F-75010 Paris, France
| | - John Rehr
- Department of Physics, University of Washington, Seattle, WA 98195, USA
| | - Christine Chappard
- B2OA, UMR 7052 CNRS, Université Paris Diderot, 10 avenue de Verdun, F-75010 Paris, France
| | - Stephan Rouzière
- Laboratoire de Physique des Solides, Université Paris XI, Bâtiment 510, 91405 Orsay, France
| | - Dominique Thiaudière
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Solen Reguer
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Michel Daudon
- Service d'Explorations Fonctionnelles, AP-HP, Hôpital Tenon, 4 rue de la Chine, F-75020 Paris, France
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Dessombz A, Nguyen C, Ea HK, Rouzière S, Foy E, Hannouche D, Réguer S, Picca FE, Thiaudière D, Lioté F, Daudon M, Bazin D. Combining μX-ray fluorescence, μXANES and μXRD to shed light on Zn2+ cations in cartilage and meniscus calcifications. J Trace Elem Med Biol 2013; 27:326-33. [PMID: 23582484 DOI: 10.1016/j.jtemb.2013.02.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 01/22/2013] [Accepted: 02/11/2013] [Indexed: 11/29/2022]
Abstract
We aimed to examine the presence of Zn, a trace element, in osteoarthritis (OA) cartilage and meniscus from patients undergoing total knee joint replacement for primary OA. We mapped Ca(2+) and Zn(2+) at the mesoscopic scale by X-ray fluorescence microanalysis (μX-ray) to determine the spatial distribution of the 2 elements in cartilage, μX-ray absorption near edge structure spectroscopy to identify the Zn species, and μX-ray diffraction to determine the chemical nature of the calcification. Fourier transform infrared spectroscopy was used to determine the chemical composition of cartilage and meniscus. Ca(2+) showed a heterogeneous spatial distribution corresponding to the calcifications within cartilage (or meniscus) or at their surface. At least 2 Zn(2+) species were present: the first may correspond to Zn embedded in protein (different Zn metalloproteins are known to prevent calcification in biological tissues), and the second may be associated with a Zn trap in or at the surface of the calcification. Calcification present in OA cartilage may significantly modify the spatial distribution of Zn; part of the Zn may be trapped in the calcification and may alter the associated biological function of Zn metalloproteins.
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Affiliation(s)
- Arnaud Dessombz
- Laboratoire de Physique des Solides, CNRS UMR 8502, Paris Sud University, Orsay, France
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Ea HK, Chobaz V, Nguyen C, Nasi S, van Lent P, Daudon M, Dessombz A, Bazin D, McCarthy G, Jolles-Haeberli B, Ives A, Van Linthoudt D, So A, Lioté F, Busso N. Pathogenic role of basic calcium phosphate crystals in destructive arthropathies. PLoS One 2013; 8:e57352. [PMID: 23468973 PMCID: PMC3585350 DOI: 10.1371/journal.pone.0057352] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 01/21/2013] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND basic calcium phosphate (BCP) crystals are commonly found in osteoarthritis (OA) and are associated with cartilage destruction. BCP crystals induce in vitro catabolic responses with the production of metalloproteases and inflammatory cytokines such as interleukin-1 (IL-1). In vivo, IL-1 production induced by BCP crystals is both dependant and independent of NLRP3 inflammasome. We aimed to clarify 1/ the role of BCP crystals in cartilage destruction and 2/ the role of IL-1 and NLRP3 inflammasome in cartilage degradation related to BCP crystals. METHODOLOGY PRINCIPAL FINDINGS synovial membranes isolated from OA knees were analysed by alizarin Red and FTIR. Pyrogen free BCP crystals were injected into right knees of WT, NLRP3 -/-, ASC -/-, IL-1α -/- and IL-1β-/- mice and PBS was injected into left knees. To assess the role of IL-1, WT mice were treated by intra-peritoneal injections of anakinra, the IL-1Ra recombinant protein, or PBS. Articular destruction was studied at d4, d17 and d30 assessing synovial inflammation, proteoglycan loss and chondrocyte apoptosis. BCP crystals were frequently found in OA synovial membranes including low grade OA. BCP crystals injected into murine knee joints provoked synovial inflammation characterized by synovial macrophage infiltration that persisted at day 30, cartilage degradation as evidenced by loss of proteoglycan staining by Safranin-O and concomitant expression of VDIPEN epitopes, and increased chondrocyte apoptosis. BCP crystal-induced synovitis was totally independent of IL-1α and IL-1β signalling and no alterations of inflammation were observed in mice deficient for components of the NLRP3-inflammasome, IL-1α or IL-1β. Similarly, treatment with anakinra did not prevent BCP crystal effects. In vitro, BCP crystals elicited enhanced transcription of matrix degrading and pro-inflammatory genes in macrophages. CONCLUSIONS SIGNIFICANCE intra-articular BCP crystals can elicit synovial inflammation and cartilage degradation suggesting that BCP crystals have a direct pathogenic role in OA. The effects are independent of IL-1 and NLRP3 inflammasome.
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Affiliation(s)
- Hang-Korng Ea
- INSERM, UMR-S 606, Hospital Lariboisière,Paris, France
- University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, Paris, France
| | - Véronique Chobaz
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | | | - Sonia Nasi
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Peter van Lent
- Department of Rheumatology, Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Michel Daudon
- Service des Explorations Fonctionnelles, Hôpital Tenon, AP-HP, Paris, France
| | - Arnaud Dessombz
- Laboratoire de Physique des Solides, Université Paris Sud, Orsay, France
| | - Dominique Bazin
- Laboratoire de Physique des Solides, Université Paris Sud, Orsay, France
| | | | - Brigitte Jolles-Haeberli
- Service de chirurgie orthopédique et traumatologique de l'appareil moteur, Department of Musculoskeletal Medicine, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Annette Ives
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Daniel Van Linthoudt
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Alexander So
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
| | - Frédéric Lioté
- INSERM, UMR-S 606, Hospital Lariboisière,Paris, France
- University Paris Diderot (UFR de Médecine), Sorbonne Paris Cité, Paris, France
| | - Nathalie Busso
- Department of Musculoskeletal Medicine, Service of Rheumatology, CHUV and University of Lausanne, Lausanne, Switzerland
- * E-mail:
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Touraine S, Ea HK, Bousson V, Cohen-Solal M, Laouisset L, Chappard C, Lioté F, Laredo JD. Chondrocalcinosis of femoro-tibial and proximal tibio-fibular joints in cadaveric specimens: a high-resolution CT imaging study of the calcification distribution. PLoS One 2013; 8:e54955. [PMID: 23372802 PMCID: PMC3556076 DOI: 10.1371/journal.pone.0054955] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 12/18/2012] [Indexed: 12/31/2022] Open
Abstract
Objectives To analyze calcium deposits by computed tomography (CT) in femoro-tibial compartments and proximal tibio-fibular joints; to assess the relationship with CT-assessed osteoarthritis (OA). Methods 68 (34 pairs) cadaveric knees (mean age of 84) were scanned at high resolution CT. Menisci and hyaline cartilage calcifications in the femoro-tibial and proximal tibio-fibular joints were analyzed. OA was CT-assessed by the Kellgren and Lawrence score. Gross appearance of OA was evaluated on 29 left knees after dissection and India ink staining of tibial plateaus. Results In femoro-tibial joints, meniscal calcifications (MC) and hyaline cartilage calcifications (HCC) were detected in 23(34%) and 14(21%) knees respectively. Calcifications mainly involved the three meniscal segments and were mainly observed in all thirds of the femoro-tibial compartments. In proximal tibio-fibular joints, HCC were detected in 19(28%) knees. The association HCC-MC in femoro-tibial joints and between calcifications in femoro-tibial and proximal tibio-fibular joints was strong (p<0.0001). Femoro-tibial and proximal tibio-fibular CT-assessed OA were respectively found in 23(34%) and 19(28%) knees. HCC were significantly associated with femoro-tibial OA (p = 0.04) while MC were not (p = 0.34). OA macroscopic evaluation showed a mean surface of cartilage lesions of 35% (range 0.13–0.55). No significant difference was demonstrated regarding the CT-detection of MC, HCC or CT-assessed OA. Conclusions This is the first study to report a strong association of chondrocalcinosis between femoro-tibial and tibio-fibular joints in addition to a strong association between MC and HCC in femoro-tibial compartments. No significant relationship between chondrocalcinosis and OA was demonstrated.
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Affiliation(s)
- Sébastien Touraine
- Radiologie Ostéo-Articulaire, Hôpital Lariboisière, CNRS-UMR 7052, Laboratoire B2OA, Université Paris-Diderot, Sorbonne Paris Cité, Paris, France.
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31
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Bazin D, Daudon M, Chappard C, Rehr JJ, Thiaudière D, Reguer S. The status of strontium in biological apatites: an XANES investigation. JOURNAL OF SYNCHROTRON RADIATION 2011; 18:912-918. [PMID: 21997917 DOI: 10.1107/s0909049511032651] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 08/11/2011] [Indexed: 05/31/2023]
Abstract
Osteoporosis represents a major public health problem and increases patient morbidity through its association with fragility fractures. Among the different treatments proposed, strontium-based drugs have been shown to increase bone mass in postmenopausal osteoporosis patients and to reduce fracture risk. While the localization of Sr(2+) cations in the bone matrix has been extensively studied, little is known regarding the status of Sr(2+) cations in natural biological apatite. In this investigation the local environment of Sr(2+) cations has been investigated through XANES (X-ray absorption near-edge structure) spectroscopy in a set of pathological and physiological apatites. To assess the localization of Sr(2+) cations in these biological apatites, numerical simulations using the ab initio FEFF9 X-ray spectroscopy program have been performed. The complete set of data show that the XANES part of the absorption spectra may be used as a fingerprint to determine the localization of Sr(2+) cations versus the mineral part of calcifications. More precisely, it appears that a relationship exists between some features present in the XANES part and a Sr(2+)/Ca(2+) substitution process in site (I) of crystal apatite. Regarding the data, further experiments are needed to confirm a possible link between the relationship between the preparation mode of the calcification (cellular activity for physiological calcification and precipitation for the pathological one) and the adsorption mode of Sr(2+) cations (simple adsorption or insertion). Is it possible to draw a line between life and chemistry through the localization of Sr in apatite? The question is open for discussion. A better structural description of these physiological and pathological calcifications will help to develop specific therapies targeting the demineralization process in the case of osteoporosis.
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Affiliation(s)
- D Bazin
- Laboratoire de Physique des Solides, Bâtiment 510, Université Paris XI, 91405 Orsay, France.
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