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Alsafy MAM, El-Gendy SAA, Atkinson B, Sturrock CJ, Kamal BM, Alibhai A, Abd-Elhafeez HH, Soliman S, Rashwan AM, Roshdy K, Rutland CS. Novel Insights Into the Architecture of Macro and Microstructures in Cattle Ossa Cordis. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2024; 30:574-593. [PMID: 38838186 DOI: 10.1093/mam/ozae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/22/2024] [Accepted: 04/07/2024] [Indexed: 06/07/2024]
Abstract
Ossa cordis, bones located within the heart trigones, are often classified as heterotopic or ectopic bones. Despite their high prevalence in cattle and some other bovids, little is known about their structure or development. Scanning electron microscopy, X-ray microtomography, gross dissections, and measurements showed the anatomical locations, prevalence, shapes, and measurements of the cardiac bones in both Egyptian Baladi cattle and Holstein-Friesians. All cattle (n = 12) had an Ossa cordis dextrum (average = 50.70 × 20.91 × 5.40 mm). Additionally, 80% Egyptian Baladi and 57% Holstein-Friesian had a smaller Ossa cordis sinistrum (average = 24.94 × 12.75 × 4.12 mm). Egyptian Baladi Ossa cordis were smaller than observed in Holstein-Friesians. Energy-dispersive X-ray analysis showed the elemental constitution (carbon, oxygen, calcium, nitrogen, phosphorus, sodium, and magnesium) of Ossa cordis and Cartilago cordis. These imaging techniques, plus four histological stains (hematoxylin and eosin, Crossman's trichrome, Alcian blue with Van Gieson, and Sirius Red) and microscopy, demonstrated osteoblasts, osteocytes, osteoclasts, astrocytes, blood vessels, bone marrow, lamellar and woven bone, cortical bone, trabeculations with pores and canaliculi, and fibrous components including collagen in the Ossa cordis dextrum and sinistrum. Hyaline cartilage and fibrocartilage (chondrocytes and cartilage matrix) were found within and surrounding the Ossa cordis. These findings were additionally compared against other cattle breeds and species.
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Affiliation(s)
- Mohamed A M Alsafy
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Abis 10th, Alexandria, PO 21944, Egypt
| | - Samir A A El-Gendy
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Abis 10th, Alexandria, PO 21944, Egypt
| | - Brian Atkinson
- Hounsfield Facility, School of Biosciences, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
| | - Craig J Sturrock
- Hounsfield Facility, School of Biosciences, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
| | - Basma M Kamal
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 6010230, Egypt
| | - Aziza Alibhai
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Science, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
| | - Hanan H Abd-Elhafeez
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - Soha Soliman
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Ahmed M Rashwan
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Damanhour University, Al Gomhouria St, Scientic Campus, Damanhour 22511, Egypt
| | - Karam Roshdy
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Alexandria University, Abis 10th, Alexandria, PO 21944, Egypt
| | - Catrin S Rutland
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Science, University of Nottingham, College Road, Sutton Bonington, Leicestershire LE12 5RD, UK
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2
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Mabilleau G, Bouvard B. Gut hormone analogues and skeletal health in diabetes and obesity: Evidence from preclinical models. Peptides 2024; 177:171228. [PMID: 38657908 DOI: 10.1016/j.peptides.2024.171228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 04/26/2024]
Abstract
Diabetes mellitus and obesity are rapidly growing worldwide. Aside from metabolic disturbances, these two disorders also affect bone with a higher prevalence of bone fractures. In the last decade, a growing body of evidence suggested that several gut hormones, including ghrelin, gastrin, glucose-dependent insulinotropic polypeptide (GIP), glucagon, and glucagon-like peptide-1 and 2 (GLP-1 and GLP-2, respectively) may affect bone physiology. Several gut hormone analogues have been developed for the treatment of type 2 diabetes and obesity, and could represent a new alternative in the therapeutic arsenal against bone fragility. In the present review, a summary of the physiological roles of these gut hormones and their analogues is presented at the cellular level but also in several preclinical models of bone fragility disorders including type 2 diabetes mellitus, especially on bone mineral density, microarchitecture and bone material properties. The present review also summarizes the impact of GLP-1 receptor agonists approved for the treatment of type 2 diabetes mellitus and the more recent dual or triple analogue on bone physiology and strength.
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Affiliation(s)
- Guillaume Mabilleau
- Univ Angers, Nantes Université, ONIRIS, Inserm, RMeS, UMR 1229, SFR ICAT, Angers F-49000, France; CHU Angers, Département de Pathologie Cellulaire et Tissulaire, UF de Pathologie osseuse, Angers F-49933, France.
| | - Béatrice Bouvard
- Univ Angers, Nantes Université, ONIRIS, Inserm, RMeS, UMR 1229, SFR ICAT, Angers F-49000, France; CHU Angers, Service de Rhumatologie, Angers F-49933, France
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Yorioka H, Otsu Y, Suzuki R, Matsunaga S, Nakano T, Abe S, Sasaki H. The influence of immediate occlusal loading on micro/nano-structure of peri-implant jaw bone in rats. Int J Implant Dent 2024; 10:24. [PMID: 38722448 PMCID: PMC11082111 DOI: 10.1186/s40729-024-00538-x] [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: 08/25/2023] [Accepted: 04/10/2024] [Indexed: 05/12/2024] Open
Abstract
PURPOSE The objective of the present study was to ascertain the effect of immediate occlusal loading after implant placement on osseointegration and the micro/nanostructure of the surrounding bone. METHODS After extraction of a rat maxillary right second molar, an implant was placed immediately with initial fixation (2 N< ). The implants were placed to avoid occlusal loading due to mastication, and in the loaded group, a superstructure was fabricated and subjected to occlusal loading. Bone morphometry, collagen fiber anisotropy, and biological apatite (BAp) crystallite alignment were quantitatively evaluated in both groups after extraction and fixation of the jaw bone at Days 7 and 21 after surgery. RESULTS Osseointegration was observed in both groups. Bone morphometry showed significant differences in bone volume, trabecular number, trabecular thickness and bone mineral density (BMD) at Days 21 postoperatively (P < 0.05). A significant difference was also found in the trabecular separation at Days 7 postoperatively (P < 0.05). In the evaluation of collagen fiber anisotropy, collagen fiber bundles running differently from the existing bone were observed in both groups. In terms of BAp crystallite alignment, a specific structure was observed in the reconstructed new bone after implantation, and preferential orientation of BAp crystallite alignment was observed in the longitudinal direction of the implants in the Day 21 postoperative loaded group. CONCLUSION When sufficient initial fixation is achieved at the time of dental implant placement, then the applied masticatory load may contribute to rapidly achieving not only bone volume, but also adequate bone quality after implant placement.
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Affiliation(s)
- Hiroaki Yorioka
- Department of Oral and Maxillofacial Implantology, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Yuto Otsu
- Department of Oral and Maxillofacial Implantology, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Ryu Suzuki
- Department of Anatomy, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Satoru Matsunaga
- Oral Health Science Center, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan.
- Department of Anatomy, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan.
| | - Takayoshi Nakano
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, 565-0871, Suita, Osaka, Japan
| | - Shinichi Abe
- Oral Health Science Center, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
- Department of Anatomy, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
| | - Hodaka Sasaki
- Department of Oral and Maxillofacial Implantology, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, 2-9-18 Kandamisaki-cho, Chiyoda-ku, 101-0061, Tokyo, Japan
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Fan R, Liu J, Jia Z. Effects of different running intensities on the micro-level failure strain of rat femoral cortical bone structures: a finite element investigation. Biomed Eng Online 2023; 22:89. [PMID: 37700306 PMCID: PMC10496390 DOI: 10.1186/s12938-023-01151-6] [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: 01/25/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Running with the appropriate intensity may produce a positive influence on the mechanical properties of cortical bone structure. However, few studies have discussed the effects of different running intensities on the mechanical properties at different levels, especially at the micro-level, because the micromechanical parameters are difficult to measure experimentally. METHODS An approach that combines finite element analysis and experimental data was proposed to predict a micromechanical parameter in the rat femoral cortical bone structure, namely, the micro-level failure strain. Based on the previous three-point bending experimental information, fracture simulations were performed on the femur finite element models to predict their failure process under the same bending load, and the micro-level failure strains in tension and compression of these models were back-calculated by fitting the experimental load-displacement curves. Then, the effects of different running intensities on the micro-level failure strain of rat femoral cortical bone structure were investigated. RESULTS The micro-level failure strains of the cortical bone structures expressed statistical variations under different running intensities, which indicated that different mechanical stimuli of running had significant influences on the micromechanical properties. The greatest failure strain occurred in the cortical bone structure under low-intensity running, and the lowest failure strain occurred in the structure under high-intensity running. CONCLUSIONS Moderate and low-intensity running were effective in enhancing the micromechanical properties, whereas high-intensity running led to the weakening of the micromechanical properties of cortical bone. Based on these, the changing trends in the micromechanical properties were exhibited, and the effects of different running intensities on the fracture performance of rat cortical bone structures could be discussed in combination with the known mechanical parameters at the macro- and nano-levels, which provided the theoretical basis for reducing fracture incidence through running exercise.
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Affiliation(s)
- Ruoxun Fan
- Department of Traffic Engineering, Yangzhou Polytechnic Institute, Yangzhou, 225127, People's Republic of China.
| | - Jie Liu
- Department of Aerospace Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, People's Republic of China
| | - Zhengbin Jia
- Department of Engineering Mechanics, Jilin University, Changchun, 130022, People's Republic of China
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Olevsky LM, Anup A, Jacques M, Keokominh N, Holmgren EP, Hixon KR. Direct Integration of 3D Printing and Cryogel Scaffolds for Bone Tissue Engineering. Bioengineering (Basel) 2023; 10:889. [PMID: 37627774 PMCID: PMC10451777 DOI: 10.3390/bioengineering10080889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Cryogels, known for their biocompatibility and porous structure, lack mechanical strength, while 3D-printed scaffolds have excellent mechanical properties but limited porosity resolution. By combining a 3D-printed plastic gyroid lattice scaffold with a chitosan-gelatin cryogel scaffold, a scaffold can be created that balances the advantages of both fabrication methods. This study compared the pore diameter, swelling potential, mechanical characteristics, and cellular infiltration capability of combined scaffolds and control cryogels. The incorporation of the 3D-printed lattice demonstrated patient-specific geometry capabilities and significantly improved mechanical strength compared to the control cryogel. The combined scaffolds exhibited similar porosity and relative swelling ratio to the control cryogels. However, they had reduced elasticity, reduced absolute swelling capacity, and are potentially cytotoxic, which may affect their performance. This paper presents a novel approach to combine two scaffold types to retain the advantages of each scaffold type while mitigating their shortcomings.
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Affiliation(s)
- Levi M. Olevsky
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (L.M.O.); (A.A.)
| | - Amritha Anup
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (L.M.O.); (A.A.)
| | - Mason Jacques
- College of Engineering and Physical Sciences, University of New Hampshire, Durham, NH 03824, USA; (M.J.); (N.K.)
| | - Nadia Keokominh
- College of Engineering and Physical Sciences, University of New Hampshire, Durham, NH 03824, USA; (M.J.); (N.K.)
| | - Eric P. Holmgren
- Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA;
| | - Katherine R. Hixon
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (L.M.O.); (A.A.)
- Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA;
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Mandal S, Tannert A, Ebert C, Guliev RR, Ozegowski Y, Carvalho L, Wildemann B, Eiserloh S, Coldewey SM, Löffler B, Bastião Silva L, Hoerr V, Tuchscherr L, Neugebauer U. Insights into S. aureus-Induced Bone Deformation in a Mouse Model of Chronic Osteomyelitis Using Fluorescence and Raman Imaging. Int J Mol Sci 2023; 24:ijms24119762. [PMID: 37298718 DOI: 10.3390/ijms24119762] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Osteomyelitis is an infection of the bone that is often difficult to treat and causes a significant healthcare burden. Staphylococcus aureus is the most common pathogen causing osteomyelitis. Osteomyelitis mouse models have been established to gain further insights into the pathogenesis and host response. Here, we use an established S. aureus hematogenous osteomyelitis mouse model to investigate morphological tissue changes and bacterial localization in chronic osteomyelitis with a focus on the pelvis. X-ray imaging was performed to follow the disease progression. Six weeks post infection, when osteomyelitis had manifested itself with a macroscopically visible bone deformation in the pelvis, we used two orthogonal methods, namely fluorescence imaging and label-free Raman spectroscopy, to characterise tissue changes on a microscopic scale and to localise bacteria in different tissue regions. Hematoxylin and eosin as well as Gram staining were performed as a reference method. We could detect all signs of a chronically florid tissue infection with osseous and soft tissue changes as well as with different inflammatory infiltrate patterns. Large lesions dominated in the investigated tissue samples. Bacteria were found to form abscesses and were distributed in high numbers in the lesion, where they could occasionally also be detected intracellularly. In addition, bacteria were found in lower numbers in surrounding muscle tissue and even in lower numbers in trabecular bone tissue. The Raman spectroscopic imaging revealed a metabolic state of the bacteria with reduced activity in agreement with small cell variants found in other studies. In conclusion, we present novel optical methods to characterise bone infections, including inflammatory host tissue reactions and bacterial adaptation.
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Affiliation(s)
- Shibarjun Mandal
- Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745 Jena, Germany
| | - Astrid Tannert
- Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745 Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
| | - Christina Ebert
- Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745 Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
| | - Rustam R Guliev
- Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745 Jena, Germany
| | - Yvonne Ozegowski
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | - Lina Carvalho
- Institute of Anatomical and Molecular Pathology, Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Britt Wildemann
- Experimental Trauma Surgery, Jena University Hospital, 07747 Jena, Germany
| | - Simone Eiserloh
- Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745 Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
| | - Sina M Coldewey
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
- Department of Anaesthesiology and Intensive Care Medicine, Jena University Hospital, 07747 Jena, Germany
| | - Bettina Löffler
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | | | - Verena Hoerr
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
- Heart Center Bonn, Department of Internal Medicine II, University Hospital Bonn, 53127 Bonn, Germany
| | - Lorena Tuchscherr
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
- Institute for Medical Microbiology, Jena University Hospital, 07747 Jena, Germany
| | - Ute Neugebauer
- Leibniz Institute of Photonic Technology (Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research, LPI), 07745 Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, 07747 Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, 07743 Jena, Germany
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7
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Muacevic A, Adler JR, Konstantopoulos P, Driva TS, Kontos A, Papagianni E, Kourkoulis S, Dimitroulis D, Perrea DN, Vlamis J. Effects of Incretin Pathway Elements on Bone Properties. Cureus 2023; 15:e33656. [PMID: 36643078 PMCID: PMC9833274 DOI: 10.7759/cureus.33656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 01/13/2023] Open
Abstract
Introduction The effects of incretin-based drugs, such as receptor agonists of glucagon-like peptide-1 and inhibitors of dipeptidyl peptidase-4, on bone metabolism are not completely clear yet. The aim of this study is to compare the effects of glucagon-like peptide-1 and inhibitors of dipeptidyl peptidase-4 on the bone to see how different elements of the incretin pathway affect bone quality in terms of biomechanical properties, bone turnover, and mineral properties. Materials and methods Forty 10-week-old Wistar rats were divided into four groups: a control group, a control diabetic group, a diabetic group treated with sitagliptin, and a diabetic group treated with exenatide. Type 2 diabetes was simulated by dietary manipulation in addition to low-dose streptozotocin, and then two different incretin-based drugs were administered. The rats were sacrificed after five weeks of therapeutic treatment. Their serum was analyzed with the enzyme-linked immunosorbent assay (ELISA) method for basic bone turnover markers, and their right femur was subjected to a three-point bending test. Finally, Hematoxylin & Eosin staining, in addition to Raman spectroscopy, were employed to access the collagen and mineral properties of the bone. Results Both incretin-based drugs reduced osteoclast function; however, they were not able to restore osteoblastic function to normal. The net effect on bone strength was surprising: bone elasticity was restored by the antidiabetic treatment, but bone strength deteriorated. Exenatide had a slightly more pronounced effect, which, although not significant, points to the direction that dipeptidyl peptidase-4 (DPP4) may be a linking factor between reduced osteoclastic function and reduced bone formation, as suggested by the literature. Conclusion DPP4 receptors seem to be one of the links between reduced osteoclast function and reduced bone remodeling, so DPP4 inhibition can be more detrimental to the bone than glucagon-like peptide-1 (GLP-1) receptor agonists.
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Liu Q, Liu Z, Guo H, Liang J, Zhang Y. The progress in quantitative evaluation of callus during distraction osteogenesis. BMC Musculoskelet Disord 2022; 23:490. [PMID: 35610718 PMCID: PMC9128294 DOI: 10.1186/s12891-022-05458-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/19/2022] [Indexed: 12/22/2022] Open
Abstract
The manual monitoring of callus with digital radiography (X-ray) is the primary bone healing evaluation, assessing the number of bridged callus formations. However, this method is subjective and nonquantitative. Recently, several quantitative monitoring methods, which could assess the recovery of the structure and biomechanical properties of the callus at different stages and the process of bone healing, have been extensively investigated. These methods could reflect the bone mineral content (BMC), bone mineral density (BMD), stiffness, callus and bone metabolism at the site of bone lengthening. In this review, we comprehensively summarized the latest techniques for evaluating bone healing during distraction osteogenesis (DO): 1) digital radiography; 2) dual-energy X-ray scanning; 3) ultrasound; 4) quantitative computed tomography; 5) biomechanical evaluation; and 6) biochemical markers. This evidence will provide novel and significant information for evaluating bone healing during DO in the future.
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Affiliation(s)
- Qi Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Hunan Province, Changsha, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ze Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Hunan Province, Changsha, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongbin Guo
- Department of Orthopaedics, Xiangya Hospital, Central South University, Hunan Province, Changsha, 410008, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jieyu Liang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Hunan Province, Changsha, 410008, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Yi Zhang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Hunan Province, Changsha, 410008, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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9
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Foessl I, Bassett JHD, Bjørnerem Å, Busse B, Calado Â, Chavassieux P, Christou M, Douni E, Fiedler IAK, Fonseca JE, Hassler E, Högler W, Kague E, Karasik D, Khashayar P, Langdahl BL, Leitch VD, Lopes P, Markozannes G, McGuigan FEA, Medina-Gomez C, Ntzani E, Oei L, Ohlsson C, Szulc P, Tobias JH, Trajanoska K, Tuzun Ş, Valjevac A, van Rietbergen B, Williams GR, Zekic T, Rivadeneira F, Obermayer-Pietsch B. Bone Phenotyping Approaches in Human, Mice and Zebrafish - Expert Overview of the EU Cost Action GEMSTONE ("GEnomics of MusculoSkeletal traits TranslatiOnal NEtwork"). Front Endocrinol (Lausanne) 2021; 12:720728. [PMID: 34925226 PMCID: PMC8672201 DOI: 10.3389/fendo.2021.720728] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 10/21/2021] [Indexed: 12/16/2022] Open
Abstract
A synoptic overview of scientific methods applied in bone and associated research fields across species has yet to be published. Experts from the EU Cost Action GEMSTONE ("GEnomics of MusculoSkeletal Traits translational Network") Working Group 2 present an overview of the routine techniques as well as clinical and research approaches employed to characterize bone phenotypes in humans and selected animal models (mice and zebrafish) of health and disease. The goal is consolidation of knowledge and a map for future research. This expert paper provides a comprehensive overview of state-of-the-art technologies to investigate bone properties in humans and animals - including their strengths and weaknesses. New research methodologies are outlined and future strategies are discussed to combine phenotypic with rapidly developing -omics data in order to advance musculoskeletal research and move towards "personalised medicine".
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Affiliation(s)
- Ines Foessl
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Endocrine Lab Platform, Medical University of Graz, Graz, Austria
| | - J. H. Duncan Bassett
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Åshild Bjørnerem
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Norwegian Research Centre for Women’s Health, Oslo University Hospital, Oslo, Norway
| | - Björn Busse
- Department of Osteology and Biomechanics, University Medical Center, Hamburg-Eppendorf, Hamburg, Germany
| | - Ângelo Calado
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Centro Académico de Medicina de Lisboa, Lisboa, Portugal
| | | | - Maria Christou
- Department of Hygiene and Epidemiology, Medical School, University of Ioannina, Ioannina, Greece
| | - Eleni Douni
- Institute for Bioinnovation, Biomedical Sciences Research Center “Alexander Fleming”, Vari, Greece
- Department of Biotechnology, Agricultural University of Athens, Athens, Greece
| | - Imke A. K. Fiedler
- Department of Osteology and Biomechanics, University Medical Center, Hamburg-Eppendorf, Hamburg, Germany
| | - João Eurico Fonseca
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Centro Académico de Medicina de Lisboa, Lisboa, Portugal
- Rheumatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte (CHULN), Lisbon Academic Medical Centre, Lisbon, Portugal
| | - Eva Hassler
- Division of Neuroradiology, Vascular and Interventional Radiology, Department of Radiology, Medical University Graz, Graz, Austria
| | - Wolfgang Högler
- Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Linz, Austria
| | - Erika Kague
- The School of Physiology, Pharmacology and Neuroscience, Biomedical Sciences, University of Bristol, Bristol, United Kingdom
| | - David Karasik
- Azrieli Faculty of Medicine, Bar-Ilan University, Ramat Gan, Israel
| | - Patricia Khashayar
- Center for Microsystems Technology, Imec and Ghent University, Ghent, Belgium
| | - Bente L. Langdahl
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Victoria D. Leitch
- Innovative Manufacturing Cooperative Research Centre, Royal Melbourne Institute of Technology, School of Engineering, Carlton, VIC, Australia
| | - Philippe Lopes
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Georgios Markozannes
- Department of Hygiene and Epidemiology, Medical School, University of Ioannina, Ioannina, Greece
| | | | | | - Evangelia Ntzani
- Department of Hygiene and Epidemiology, Medical School, University of Ioannina, Ioannina, Greece
- Department of Health Services, Policy and Practice, Center for Research Synthesis in Health, School of Public Health, Brown University, Providence, RI, United States
| | - Ling Oei
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Claes Ohlsson
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Drug Treatment, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Pawel Szulc
- INSERM UMR 1033, University of Lyon, Lyon, France
| | - Jonathan H. Tobias
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- MRC Integrative Epidemiology Unit, Bristol Medical School, Bristol, University of Bristol, Bristol, United Kingdom
| | - Katerina Trajanoska
- Department of Internal Medicine, Erasmus MC Rotterdam, Rotterdam, Netherlands
| | - Şansın Tuzun
- Physical Medicine & Rehabilitation Department, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Amina Valjevac
- Department of Human Physiology, School of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Bert van Rietbergen
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Graham R. Williams
- Molecular Endocrinology Laboratory, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Tatjana Zekic
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, Clinical Hospital Center Rijeka, Rijeka, Croatia
| | | | - Barbara Obermayer-Pietsch
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Endocrine Lab Platform, Medical University of Graz, Graz, Austria
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10
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Rony L, Chappard D. Necrosis of the femoral head, X-ray microtomography (microCT) and histology of retrieved human femoral heads. Morphologie 2021; 105:134-142. [PMID: 33744124 DOI: 10.1016/j.morpho.2021.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/25/2021] [Accepted: 02/25/2021] [Indexed: 10/21/2022]
Abstract
Aseptic osteonecrosis of the hip (AON) is a rare, but well-known pathology in rheumatology and orthopedic surgery that is a necrosis of the articular cartilage secondary to a necrosis of the subchondral bone. The microscopic aspect is well known, but the microCT aspect has never been reported or correlated with histopathological findings. The objective of this study was to improve the knowledge of the pathophysiology of AON using histochemistry and microCT. One hundred and sixty femoral heads with stage 3 or 4 AON were analyzed: one half of the head was sent for microCT analysis after impregnation with phosphotungstic acid (PTA) and the other half was used for histological analysis without decalcification. The microCT analysis provides relevant information on the cracked articular cartilage and the relationship with the necrotic subchondral trabecular bone well illustrated on three videos. In histology, Goldner's trichrome showed that the articular cartilage remains well preserved for a long time. In addition, toluidine blue staining reveals a modeling process, i.e. the apposition of new bone without prior resorption by osteoclasts. Rhodamine B staining (fluorescence analysis) reveals that the osteonecrotic trabeculae and subchondral bone were devoid of osteocytes. Areas of peri-necrotic osteosclerosis are due to direct bone formation on the surface of pre-existing necrotic trabeculae.
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Affiliation(s)
- L Rony
- GEROM - Groupe études remodelage osseux et biomatériaux, LHEA, Université d'Angers, CHU d'Angers, 49933 Angers cedex, France
| | - D Chappard
- GEROM - Groupe études remodelage osseux et biomatériaux, LHEA, Université d'Angers, CHU d'Angers, 49933 Angers cedex, France.
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11
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Dole NS, Yee CS, Schurman CA, Dallas SL, Alliston T. Assessment of Osteocytes: Techniques for Studying Morphological and Molecular Changes Associated with Perilacunar/Canalicular Remodeling of the Bone Matrix. Methods Mol Biol 2021; 2230:303-323. [PMID: 33197021 PMCID: PMC9165628 DOI: 10.1007/978-1-0716-1028-2_17] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Recent advances have revived interest in the concept of osteocyte perilacunar/canalicular remodeling (PLR) and have motivated efforts to identify the mechanisms regulating this process in bone in the context of normal physiology and pathological conditions. Here, we describe several methods that are evaluating morphological changes associated with PLR function of osteocytes.
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Affiliation(s)
- Neha S Dole
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Cristal S Yee
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Charles A Schurman
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA
- UC Berkeley/UCSF Graduate Program in Bioengineering, San Francisco, CA, USA
| | - Sarah L Dallas
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri Kansas City, Kansas City, MO, USA
| | - Tamara Alliston
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA.
- UC Berkeley/UCSF Graduate Program in Bioengineering, San Francisco, CA, USA.
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12
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Mieczkowska A, Bouvard B, Legrand E, Mabilleau G. [Gly²]-GLP-2, But Not Glucagon or [D-Ala²]-GLP-1, Controls Collagen Crosslinking in Murine Osteoblast Cultures. Front Endocrinol (Lausanne) 2021; 12:721506. [PMID: 34421828 PMCID: PMC8371440 DOI: 10.3389/fendo.2021.721506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/16/2021] [Indexed: 11/23/2022] Open
Abstract
Bone tissue is organized at the molecular level to resist fracture with the minimum of bone material. This implies that several modifications of the extracellular matrix, including enzymatic collagen crosslinking, take place. We previously highlighted the role of several gut hormones in enhancing collagen maturity and bone strength. The present study investigated the effect of proglucagon-derived peptides on osteoblast-mediated collagen post-processing. Briefly, MC3T3-E1 murine osteoblasts were cultured in the presence of glucagon (GCG), [D-Ala²]-glucagon-like peptide-1 ([D-Ala²]-GLP-1), and [Gly²]-glucagon-like peptide-2 ([Gly²]-GLP-2). Gut hormone receptor expression at the mRNA and protein levels were investigated by qPCR and Western blot. Extent of collagen postprocessing was examined by Fourier transform infrared microspectroscopy. GCG and GLP-1 receptors were not evidenced in osteoblast cells at the mRNA and protein levels. However, it is not clear whether the known GLP-2 receptor is expressed. Nevertheless, administration of [Gly²]-GLP-2, but not GCG or [D-Ala²]-GLP-1, led to a dose-dependent increase in collagen maturity and an acceleration of collagen post-processing. This mechanism was dependent on adenylyl cyclase activation. In conclusion, the present study highlighted a direct effect of [Gly²]-GLP-2 to enhance collagen post-processing and crosslinking maturation in murine osteoblast cultures. Whether this effect is translatable to human osteoblasts remains to be elucidated.
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Affiliation(s)
| | - Beatrice Bouvard
- Univ Angers, GEROM, SFR ICAT, Angers, France
- CHU Angers, Rheumatology Department, Angers, France
| | - Erick Legrand
- Univ Angers, GEROM, SFR ICAT, Angers, France
- CHU Angers, Rheumatology Department, Angers, France
| | - Guillaume Mabilleau
- Univ Angers, GEROM, SFR ICAT, Angers, France
- CHU Angers, Bone Pathology Unit, Angers, France
- *Correspondence: Guillaume Mabilleau,
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13
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Bouvard B, Pascaretti-Grizon F, Legrand E, Lavigne C, Audran M, Chappard D. Bone lesions in systemic mastocytosis: Bone histomorphometry and histopathological mechanisms. Morphologie 2020; 104:97-108. [PMID: 32127247 DOI: 10.1016/j.morpho.2020.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 01/22/2020] [Accepted: 01/22/2020] [Indexed: 01/06/2023]
Abstract
Osteoporosis is considered the most frequent skeletal manifestation of systemic mastocytosis (SM). We performed a retrospective analysis of sixty patients (37 males and 23 females) who underwent a bone biopsy in the assessment of SM or in the assessment of unexplained bone fragility. Thirty-three had simultaneously a bone marrow biopsy with a Jamshidi's needle; this sample was used for immunohistochemical analysis (tryptase, c-KIT. CD20, VCAM-1). Bone biopsy was realized in 42 cases in the assessment of SM to provide histologic proof of the disease and in 18 cases in the assessment of unexplained bone fragility and surprisingly revealed a SM. An increased bone turnover was observed in patients with SM with elevated eroded surfaces, osteoclast number and bone formation rate. In addition to nodules of mast cells (MC), a high number of MC was directly apposed on the trabeculae, affixed on the osteoblasts or the lining cells. The VCAM-1 adhesion protein recognizing α4β7 and α4β1 integrins may be a candidate to explain this particular adherence. One third of the bone marrow biopsies did not exhibit MC nodules or MC infiltration and led to a false negative diagnosis for SM. SM can be discovered in the assessment of fracture or osteoporosis. Transiliac bone biopsy allows for the diagnosis of the disease more accurately than bone marrow biopsy; it also provides a histomorphometric analysis of bone remodeling.
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Affiliation(s)
- B Bouvard
- Groupe études remodelage osseux et biomatériaux (GEROM), EA-4658, SFR-4208, IRIS-Institut de Biologie en Santé (IBS), université d'Angers, CHU d'Angers, 49933 Angers, France; Department of rheumatology, CHU d'Angers, 49933 Angers cedex, France
| | - F Pascaretti-Grizon
- Groupe études remodelage osseux et biomatériaux (GEROM), EA-4658, SFR-4208, IRIS-Institut de Biologie en Santé (IBS), université d'Angers, CHU d'Angers, 49933 Angers, France
| | - E Legrand
- Groupe études remodelage osseux et biomatériaux (GEROM), EA-4658, SFR-4208, IRIS-Institut de Biologie en Santé (IBS), université d'Angers, CHU d'Angers, 49933 Angers, France; Department of rheumatology, CHU d'Angers, 49933 Angers cedex, France
| | - C Lavigne
- Department of internal medicine, CHU d'Angers, 49933 Angers cedex, France
| | - M Audran
- Groupe études remodelage osseux et biomatériaux (GEROM), EA-4658, SFR-4208, IRIS-Institut de Biologie en Santé (IBS), université d'Angers, CHU d'Angers, 49933 Angers, France; Department of rheumatology, CHU d'Angers, 49933 Angers cedex, France
| | - D Chappard
- Groupe études remodelage osseux et biomatériaux (GEROM), EA-4658, SFR-4208, IRIS-Institut de Biologie en Santé (IBS), université d'Angers, CHU d'Angers, 49933 Angers, France.
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14
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Gobron B, Bouvard B, Legrand E, Chappard D, Mabilleau G. GLP-2 administration in ovariectomized mice enhances collagen maturity but did not improve bone strength. Bone Rep 2020; 12:100251. [PMID: 32071954 PMCID: PMC7013338 DOI: 10.1016/j.bonr.2020.100251] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis and bone fragility are progressing worldwide. Previous published literature reported a possible beneficial role of gut hormones, and especially glucagon-like peptide-2 (GLP-2), in modulating bone remodeling. As now (Gly2)GLP-2 is approved in the treatment of short bowel syndrome, we thought to investigate whether such molecule could be beneficial in bone fragility. MC3T3 and Raw 264.7 were cultured in presence of ascending concentrations of (Gly2)GLP-2. Collagen crosslinks, maturity, lysyl oxidase activity and osteoclastogenesis were then analyzed. Furthermore, (Gly2)GLP-2, at the clinical approved dose of 50 μg/kg/day, was also administered to ovariectomized Balb/c mice for 8 weeks. Hundred μg/kg zoledronic acid (once iv) was also used as a positive comparator. Bone strength, microarchitectures and bone tissue composition were analyzed by 3-point bending, compression test, microCT and Fourier transform infrared imaging, respectively. In vitro, (Gly2)GLP-2 was potent in enhancing bone matrix gene expression but also to dose-dependently enhanced collagen maturation and post-processing. (Gly2)GLP-2 was also capable of reducing dose-dependently the number of newly generated osteoclasts. However, in vivo, (Gly2)GLP-2 was not capable of improving neither bone strength, at the femur diaphysis or lumbar vertebrae, nor bone microarchitecture. On the other hand, at the tissue material level, (Gly2)GLP-2 significantly enhances collagen maturity and reduce phosphate/amide ratio. Overall, this study highlights that despite modification of bone tissue composition, (Gly2)GLP-2, at the clinical approved dose of 50 μg/kg/day, did not provide real beneficial effects in improving bone strength in a mouse model of bone fragility. Further studies are recommended to validate the best dose and regimen of administration to significantly enhance bone strength. In vitro, (Gly2)GLP-2 enhances dose-dependently bone matrix deposition and quality. In vitro, (Gly2)GLP-2 reduces dose-dependently osteoclast formation. In vivo, (Gly2)GLP-2 failed to improve bone strength in ovariectomy-induced bone loss. In vivo, (Gly2)GLP-2 failed to improve bone microarchitecture. In vivo, (Gly2)GLP-2 increased collagen maturity and phosphate/amide ratios.
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Affiliation(s)
- B Gobron
- Groupe études remodelage osseux et biomatériaux, GEROM, UPRES EA4658, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,Service de Rhumatologie, CHU d'Angers, 49933 Angers cedex, France
| | - B Bouvard
- Groupe études remodelage osseux et biomatériaux, GEROM, UPRES EA4658, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,Service de Rhumatologie, CHU d'Angers, 49933 Angers cedex, France
| | - E Legrand
- Groupe études remodelage osseux et biomatériaux, GEROM, UPRES EA4658, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,Service de Rhumatologie, CHU d'Angers, 49933 Angers cedex, France
| | - D Chappard
- Groupe études remodelage osseux et biomatériaux, GEROM, UPRES EA4658, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,Service commun d'imageries et d'analyses microscopiques, SCIAM, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,UF de Pathologie osseuse, CHU d'Angers, 49933 Angers cedex, France
| | - G Mabilleau
- Groupe études remodelage osseux et biomatériaux, GEROM, UPRES EA4658, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,Service commun d'imageries et d'analyses microscopiques, SCIAM, UNIV Angers, SFR 42-08, Institut de Biologie en Santé, CHU d'Angers, 49933 Angers cedex, France.,UF de Pathologie osseuse, CHU d'Angers, 49933 Angers cedex, France
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15
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Choy MHV, Wong RMY, Li MC, Wang BY, Liu XD, Lee W, Cheng JCY, Chow SKH, Cheung WH. Can we enhance osteoporotic metaphyseal fracture healing through enhancing ultrastructural and functional changes of osteocytes in cortical bone with low-magnitude high-frequency vibration? FASEB J 2020; 34:4234-4252. [PMID: 31961009 DOI: 10.1096/fj.201901595r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 12/31/2019] [Accepted: 01/07/2020] [Indexed: 01/04/2023]
Abstract
Fragility fractures are related to the loss of bone integrity and deteriorated morphology of osteocytes. Our previous studies have reported that low-magnitude high-frequency vibration (LMHFV) promoted osteoporotic fracture healing. As osteocytes are known for mechanosensing and initiating bone repair, we hypothesized that LMHFV could enhance osteoporotic fracture healing through enhancing morphological changes in the osteocyte lacuna-canalicular network (LCN) and mineralization. A metaphyseal fracture model was established in female Sprague-Dawley rats to investigate changes in osteocytes and healing outcomes from early to late phase post-fracture. Our results showed that the LCN exhibited an exuberant outgrowth of canaliculi in the osteoporotic fractured bone at day 14 after LMHFV. LMHFV upregulated the E11, dentin matrix protein 1 (DMP1), and fibroblast growth factor 23 (FGF23), but downregulated sclerostin (Sost) in osteocytes. Moreover, LMHFV promoted mineralization with significant enhancements of Ca/P ratio, mineral apposition rate (MAR), mineralizing surface (MS/BS), and bone mineral density (BMD) in the osteoporotic group. Consistently, better healing was confirmed by microarchitecture and mechanical properties, whereas the enhancement in osteoporotic group was comparable or even greater than the normal group. This is the first report to reveal the enhancement effect of LMHFV on the osteocytes' morphology and functions in osteoporotic fracture healing.
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Affiliation(s)
- Man-Huen Victoria Choy
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ronald Man-Yeung Wong
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Meng-Chen Li
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Bai Yan Wang
- School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiao Dong Liu
- Department of Anaesthesia and Intensive Care, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wayne Lee
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jack Chun-Yiu Cheng
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China
| | - Simon Kwoon-Ho Chow
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China
| | - Wing-Hoi Cheung
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.,The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong Shenzhen Research Institute, Shenzhen, PR China
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16
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Cesar R, Bravo-Castillero J, Ramos RR, Pereira CAM, Zanin H, Rollo JMDA. Relating mechanical properties of vertebral trabecular bones to osteoporosis. Comput Methods Biomech Biomed Engin 2019; 23:54-68. [DOI: 10.1080/10255842.2019.1699542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- R. Cesar
- Department of Mechanical Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
| | - J. Bravo-Castillero
- Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas (IIMAS), Universidad Nacional Autónoma de México (UNAM), Mexico City, México
- IIMAS UNAM Mérida, Unidad Académica de Yucatán, Parque Científico Tecnológico de Yucatán, Mérida, México
| | - R. R. Ramos
- Facultad de Matemática y Computación, Universidad de La Habana, Havana, Cuba
| | - C. A. M. Pereira
- Orthopedics and Traumatology Institute at the Clinical Hospital, University of São Paulo (USP), São Paulo, Brazil
| | - H. Zanin
- Carbon Sci-Tech labs, School of Electrical and Computer Engineering, University of Campinas, Campinas, Brazil
| | - J. M. D. A. Rollo
- Department of Materials Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
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17
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Liu Z, Gao J, Gong H. Effects of treadmill with different intensities on bone quality and muscle properties in adult rats. Biomed Eng Online 2019; 18:107. [PMID: 31718665 PMCID: PMC6852718 DOI: 10.1186/s12938-019-0728-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 11/02/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Bone is a dynamically hierarchical material that can be divided into length scales of several orders of magnitude. Exercise can cause bone deformation, which in turn affects bone mass and structure. This study aimed to study the effects of treadmill running with different intensities on the long bone integrity and muscle biomechanical properties of adult male rats. METHODS Forty-eight 5-month-old male SD rats were randomly divided into 4 groups: i.e., sedentary group (SED), exercise with speed of 12 m/min group (EX12), 16 m/min group (EX16), and 20 m/min group (EX20). The exercise was carried out for 30 min every day, 5 days a week for 4 weeks. The femurs were examined using three-point bending test, microcomputer tomography scanning and nanoindentation test; the soleus muscle was dissected for tensile test; ALP and TRACP concentrations were measured by serum analysis. RESULTS The failure load was significantly increased by the EX12 group, whereas the elastic modulus was not significantly changed. The microstructure and mineral densities of the trabecular and cortical bone were significantly improved by the EX12 group. The mechanical properties of the soleus muscle were significantly increased by treadmill exercise. Bone formation showed significant increase by the EX12 group. Statistically higher nanomechanical properties of cortical bone were detected in the EX12 group. CONCLUSION The speed of 12 m/min resulted in significant changes in the microstructure and biomechanical properties of bone; besides, it significantly increased the ultimate load of the soleus muscle. The different intensities of treadmill running in this study provide an experimental basis for the selection of exercise intensity for adult male rats.
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Affiliation(s)
- Zhehao Liu
- Department of Engineering Mechanics, Jilin University, Changchun, 130022, People's Republic of China
| | - Jiazi Gao
- Department of Engineering Mechanics, Jilin University, Changchun, 130022, People's Republic of China
| | - He Gong
- Department of Engineering Mechanics, Jilin University, Changchun, 130022, People's Republic of China.
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18
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Rony L, Aguado E, Pascaretti-Grizon F, Hubert L, Chappard D. Hyaluronic Acid Stimulates Osseointegration of β-TCP in Young and Old Ewes. Calcif Tissue Int 2019; 105:487-496. [PMID: 31321456 DOI: 10.1007/s00223-019-00589-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/11/2019] [Indexed: 10/26/2022]
Abstract
Cross-linked hyaluronic acid (HyAR) increases the local concentration of growth factors. We compared β-TCP osseointegration in old and young ewes with/without HyAR addition. A blind tunnel was drilled on the medial femoral condyle of each knee in nine young and nine old ewes and was filled with β-TCP, β-TCP + HyAR or left unfilled. Double labeling with calcein allowed histodynamic analysis. Ewes were sacrificed at 84 days and the knees were harvested. MicroCT provided histomorphometric parameters: trabecular bone volume, residual volume of biomaterial. Histodynamic parameters were: mineralization rate, mineralized surfaces, bone formation rate. A non-parametric ANOVA and post hoc test analyzed differences between subgroups. Osseointegration of β-TCP was similar in the aged/young grafted groups. Trabecular bone volume was significantly increased versus ungrafted animals (p < 0.001). There were no significant difference for bone volume, residual volume of biomaterial and histodynamic parameters when a single parameter was considered but additional effects of β-TCP and HyAR were evidenced by 3D analysis. Addition of HyAR to ß-TCP does not significantly increase bone volume but tends to increase histodynamic parameters. However, considering the reduction of osteoblastic activity in aged animals, β-TCP, and HyAR boosts osteoblastic activity. HyAR leads to an equivalent response between young and old animals.
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Affiliation(s)
- L Rony
- Groupe Etudes Remodelage Osseux et BioMatériaux, GEROM- LabCom NextBone, Université d'Angers, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, SFR 42-08, 49933, Angers Cedex, France
- Département de Chirurgie Osseuse, CHU d'Angers, 49033, Angers Cédex, France
| | - E Aguado
- Groupe Etudes Remodelage Osseux et BioMatériaux, GEROM- LabCom NextBone, Université d'Angers, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, SFR 42-08, 49933, Angers Cedex, France
- ONIRIS, Ecole Vétérinaire de Nantes, 44307, Nantes Cedex 3, France
| | - F Pascaretti-Grizon
- Groupe Etudes Remodelage Osseux et BioMatériaux, GEROM- LabCom NextBone, Université d'Angers, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, SFR 42-08, 49933, Angers Cedex, France
| | - L Hubert
- Groupe Etudes Remodelage Osseux et BioMatériaux, GEROM- LabCom NextBone, Université d'Angers, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, SFR 42-08, 49933, Angers Cedex, France
- Département de Chirurgie Osseuse, CHU d'Angers, 49033, Angers Cédex, France
| | - D Chappard
- Groupe Etudes Remodelage Osseux et BioMatériaux, GEROM- LabCom NextBone, Université d'Angers, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, SFR 42-08, 49933, Angers Cedex, France.
- Département de Chirurgie Osseuse, CHU d'Angers, 49033, Angers Cédex, France.
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19
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Liu HJ, Kim SA, Shim DJ, Jung JM, Lee EJ. Influence of Supplementary Vitamin D on Bone Mineral Density When Used in Combination with Selective Estrogen Receptor Modulators. J Menopausal Med 2019; 25:94-99. [PMID: 31497579 PMCID: PMC6718647 DOI: 10.6118/jmm.19193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 03/05/2019] [Accepted: 04/04/2019] [Indexed: 11/09/2022] Open
Abstract
Objectives Vitamin D is regarded as one of the major nutrients that significantly influence bone metabolism. This study aims to look at the effect of supplementary vitamin D on bone mineral density (BMD) in female osteoporosis patients. Methods The retrospective hospital record review was performed on 282 patients who were diagnosed with osteoporosis and treated with selective estrogen receptor modulators (SERMs) between January 2015 and December 2016. Of these patients, 151 were treated with SERMs only while 131 were treated using both SERMs and vitamin D supplements. The BMD and any occurrence of osteoporotic fracture episode were investigated after one year. The result of two groups was compared to find the significance of vitamin D. Results Overall, improvement in BMD score was observed in 76% of the patients. The BMD of the SERMs only group improved by 3% in spine and 1% in the hip while that of the SERMs with vitamin D group improved by 6% and 1% respectively. Statistical significance was noticed in the spine only. One distal radius fracture and one single level vertebral fracture occurred in patients of SERMs group while two distal radius fractures occurred in SERMs with vitamin D group. There was no occurrence of around hip fracture in both groups. Conclusion The result of the current study suggests that additional vitamin D may have some additive effect on improving BMD of the spine. Further study with the larger study population and the extended study period is recommended.
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Affiliation(s)
- Hyun Ju Liu
- Department of Obstetrics and Gynecology, Veteran's Hospital, Gwangju, Korea
| | - Soo Ah Kim
- Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea.,Department of Obstetrics and Gynecology, School of Medicine, Chosun University, Gwangju, Korea
| | - Da Joung Shim
- Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea
| | - Ji Min Jung
- Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea
| | - Eun Jeong Lee
- Department of Obstetrics and Gynecology, Chosun University Hospital, Gwangju, Korea
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20
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Sergeeva A, Vikulina AS, Volodkin D. Porous Alginate Scaffolds Assembled Using Vaterite CaCO 3 Crystals. MICROMACHINES 2019; 10:E357. [PMID: 31146472 PMCID: PMC6630714 DOI: 10.3390/mi10060357] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/21/2019] [Accepted: 05/23/2019] [Indexed: 12/11/2022]
Abstract
Formulation of multifunctional biopolymer-based scaffolds is one of the major focuses in modern tissue engineering and regenerative medicine. Besides proper mechanical/chemical properties, an ideal scaffold should: (i) possess a well-tuned porous internal structure for cell seeding/growth and (ii) host bioactive molecules to be protected against biodegradation and presented to cells when required. Alginate hydrogels were extensively developed to serve as scaffolds, and recent advances in the hydrogel formulation demonstrate their applicability as "ideal" soft scaffolds. This review focuses on advanced porous alginate scaffolds (PAS) fabricated using hard templating on vaterite CaCO3 crystals. These novel tailor-made soft structures can be prepared at physiologically relevant conditions offering a high level of control over their internal structure and high performance for loading/release of bioactive macromolecules. The novel approach to assemble PAS is compared with traditional methods used for fabrication of porous alginate hydrogels. Finally, future perspectives and applications of PAS for advanced cell culture, tissue engineering, and drug testing are discussed.
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Affiliation(s)
- Alena Sergeeva
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany.
| | - Anna S Vikulina
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany.
- School of Science and Technology, Nottingham Trent University, Clifton Lane,Nottingham NG11 8NS, UK.
| | - Dmitry Volodkin
- School of Science and Technology, Nottingham Trent University, Clifton Lane,Nottingham NG11 8NS, UK.
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21
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Boughton OR, Ma S, Cai X, Yan L, Peralta L, Laugier P, Marrow J, Giuliani F, Hansen U, Abel RL, Grimal Q, Cobb JP. Computed tomography porosity and spherical indentation for determining cortical bone millimetre-scale mechanical properties. Sci Rep 2019; 9:7416. [PMID: 31092837 PMCID: PMC6520408 DOI: 10.1038/s41598-019-43686-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/23/2019] [Indexed: 12/11/2022] Open
Abstract
The cortex of the femoral neck is a key structural element of the human body, yet there is not a reliable metric for predicting the mechanical properties of the bone in this critical region. This study explored the use of a range of non-destructive metrics to measure femoral neck cortical bone stiffness at the millimetre length scale. A range of testing methods and imaging techniques were assessed for their ability to measure or predict the mechanical properties of cortical bone samples obtained from the femoral neck of hip replacement patients. Techniques that can potentially be applied in vivo to measure bone stiffness, including computed tomography (CT), bulk wave ultrasound (BWUS) and indentation, were compared against in vitro techniques, including compression testing, density measurements and resonant ultrasound spectroscopy. Porosity, as measured by micro-CT, correlated with femoral neck cortical bone's elastic modulus and ultimate compressive strength at the millimetre length scale. Large-tip spherical indentation also correlated with bone mechanical properties at this length scale but to a lesser extent. As the elastic mechanical properties of cortical bone correlated with porosity, we would recommend further development of technologies that can safely measure cortical porosity in vivo.
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Affiliation(s)
- Oliver R Boughton
- The MSk Lab, Department of Surgery and Cancer, Imperial College London, London, United Kingdom.
- The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, United Kingdom.
| | - Shaocheng Ma
- The MSk Lab, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
- The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, United Kingdom
| | - Xiran Cai
- Sorbonne Université, INSERM, CNRS, Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Liye Yan
- Department of Materials, University of Oxford, Oxford, United Kingdom
| | - Laura Peralta
- Sorbonne Université, INSERM, CNRS, Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Pascal Laugier
- Sorbonne Université, INSERM, CNRS, Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - James Marrow
- Department of Materials, University of Oxford, Oxford, United Kingdom
| | - Finn Giuliani
- Centre for Advanced Structural Ceramics, Department of Materials, Imperial College London, London, United Kingdom
| | - Ulrich Hansen
- The Biomechanics Group, Department of Mechanical Engineering, Imperial College London, London, United Kingdom
| | - Richard L Abel
- The MSk Lab, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Quentin Grimal
- Sorbonne Université, INSERM, CNRS, Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Justin P Cobb
- The MSk Lab, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
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22
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Gkiatas I, Kostas-Agnantis I, Agathopoulos S, Papadopoulos D, Vekris M, Gelalis I, Gavrielatos V, Korompilias A. The effect of peripheral nervous system in growing bone biomechanics. An experimental study. J Orthop 2019; 16:289-292. [PMID: 31193261 DOI: 10.1016/j.jor.2019.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/05/2019] [Indexed: 10/26/2022] Open
Abstract
Objective There are several factors which affect bone growth. One of them is the peripheralnervous system whose effect on the biomechanics has not been extensively studied. The purpose of this study is to assess the effect of peripheral nervous system in bone biomechanics in an experimental rat model. Materials & methods 27 male Wistar rats were used. In all animals, the roots of the right brachial plexus were dissected and after that the animals were divided into three groups A, B and C. The animals were sacrificed six, nine, and twelve months respectively after the denervation. Both humerus were resected and biomechanical analysis was performed. Results According to the findings of the present study the denervated bones sustain less loading before fracture and they become also more elastic. Additionally, in greater time after denervation plastic deformity is noticed. Conclusion Apart from structural changes, the peripheral nerves are responsible for biomechanic changes in the bones such the greater elasticity of the bone and the reduced strength.
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Affiliation(s)
- Ioannis Gkiatas
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Ioannis Kostas-Agnantis
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Symeon Agathopoulos
- Laboratory of Ceramics and Composite Materials, Department of Materials Science and Engineering, University of Ioannina, Ioannina, Greece
| | - Dimitrios Papadopoulos
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Marios Vekris
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Ioannis Gelalis
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Vasilios Gavrielatos
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Anastasios Korompilias
- Department of Orthoapedic Surgery, School of Medicine, University of Ioannina, Ioannina, Greece
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Fauch L, Palander A, Dekker H, Schulten EA, Koistinen A, Kullaa A, Keinänen M. Narrowband-autofluorescence imaging for bone analysis. BIOMEDICAL OPTICS EXPRESS 2019; 10:2367-2382. [PMID: 31149377 PMCID: PMC6524578 DOI: 10.1364/boe.10.002367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/28/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
We present a new autofluorescence-imaging method for bone analysis. This method, based on the autofluorescence of bone, provides color images in microscopic scale. The color images are created from three monochrome images acquired with optimal excitation- and emission-wavelengths combinations. The choice of these combinations were determined from the study of two-dimensional distributions of bone-features-bispectral autofluorescence in the visible- and ultraviolet-spectral range. We demonstrate that main-bone features visualized with MG-staining method can also be visualized in the autofluorescence-color image. Furthermore, the autofluorescence-color image presents features hardly distinguished in a histological-bone section.
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Affiliation(s)
- Laure Fauch
- SIB Labs, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
- Co-first authors with equal contribution
- Co-first authors with equal contribution
| | - Anni Palander
- Institute of Dentistry, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
- Co-first authors with equal contribution
| | - Hannah Dekker
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Vrije Universiteit VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, Amsterdam, The Netherlands
| | - Engelbert Ajm Schulten
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Vrije Universiteit VU University Medical Center/Academic Centre for Dentistry Amsterdam (ACTA), P.O. Box 7057, Amsterdam, The Netherlands
| | - Arto Koistinen
- SIB Labs, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Arja Kullaa
- SIB Labs, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
- Institute of Dentistry, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
- Research Group of Oral Health Sciences, Faculty of Medicine, P.O. Box 8000, 90014 Oulu, Finland
| | - Markku Keinänen
- Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 111, 80100 Joensuu, Finland
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24
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Assis S, Keenleyside A. The macroscopic and histomorphological properties of periosteal rib lesions and its relation with disease duration: evidence from the Luis Lopes Skeletal Collection (Lisbon, Portugal). J Anat 2019; 234:480-501. [PMID: 30706479 DOI: 10.1111/joa.12936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2018] [Indexed: 12/14/2022] Open
Abstract
Periosteal new bone formation (PNBF) is a common finding in a large spectrum of diseases. In clinical practice, the morphology and location of periosteal lesions are frequently used to assist in the differential diagnosis of distinct bone conditions. Less commonly reported is the presence of PNBF on the ribs. This contrasts with the data retrieved from the study of skeletonized human remains that shows a high frequency of cases and a strong, albeit not specific, association between periosteal rib lesions and pulmonary conditions (e.g. tuberculosis). Despite that, an overall disagreement regarding the specificity and non-specificity of periosteal reactions exists in the study of dry bone remains. The insufficient number of clinical models exploring the morphology and the pathophysiology of PNBF's and the lack of systematic studies of pathological samples with a known diagnosis are claimed as major reasons for the disagreements. This study aimed to describe and compare the macroscopic and the histomorphologic appearance of periosteal rib lesions and to discuss their usefulness as diagnostic indicators. To pursue this goal, an assemblage of 13 rib samples (males = 11, females = 2, mean age-at-death = 36.6 years old) was collected from the Luis Lopes Skeletal Collection (Museu Nacional de História Natural e da Ciência, Universidade de Lisboa, Portugal). The assemblage belongs to individuals who died from pulmonary-TB (group 1), non-TB pulmonary infections (group 2) and other conditions (group 3). Prior to sample preparation, the ribs were visually inspected and the PNBF described according to its thickness, the degree of cortical integration and the type of new bone formed (e.g. woven, lamellar or both). After sampling, each bone sample was prepared for histological analysis under plane and polarized light microscopy. Macroscopically, the results showed no differences in the new bone composition between cause-of-death groups. Only slight differences in the degree of cortical integration, which was most frequently classified as mild to high in the pulmonary-TB group, were observed. Histologically, no distinguishing features were identified by pathological group. However, new bone microarchitectures were observed compatible with (1) acute, fast-growing processes (e.g. spiculated reactions), (2) long-standing processes with a rapid bone formation (e.g. appositional layering of bone) and/or (3) chronic, slow-growing processes (e.g. layers of compact lamellae). To some extent, these distinct rates of disease progression resonate with the cause-of-death listed for some individuals. Despite the small sample size, the results of this investigation are in agreement with previous studies, according to which the macroscopic and histological appearance of periosteal formations are not specific for a particular pathological conditions. Nevertheless, the results support the conclusion that the morphology of periosteal lesions is a good biological indicator for inferring the rate of progression and duration of pathological processes. This study provides important reference data regarding the histomorphology of periosteal lesions that can be used for comparative purposes, as well as to narrow down the differential diagnosis in unidentified skeletal remains.
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Affiliation(s)
- Sandra Assis
- Faculdade de Ciências Sociais e Humanas (FCSH), Centro em Rede de Investigação em Antropologia (CRIA), Universidade Nova de Lisboa, Lisbon, Portugal.,Department of Life Sciences, CIAS - Research Centre for Anthropology and Health, University of Coimbra, Coimbra, Portugal
| | - Anne Keenleyside
- Department of Anthropology, Trent University, Peterborough, Ontario, Canada
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25
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Fourier Transform Infrared Spectroscopy of Bone Tissue: Bone Quality Assessment in Preclinical and Clinical Applications of Osteoporosis and Fragility Fracture. Clin Rev Bone Miner Metab 2019. [DOI: 10.1007/s12018-018-9255-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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26
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Mansur SA, Mieczkowska A, Flatt PR, Chappard D, Irwin N, Mabilleau G. The GLP-1 Receptor Agonist Exenatide Ameliorates Bone Composition and Tissue Material Properties in High Fat Fed Diabetic Mice. Front Endocrinol (Lausanne) 2019; 10:51. [PMID: 30809192 PMCID: PMC6380209 DOI: 10.3389/fendo.2019.00051] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 01/21/2019] [Indexed: 12/25/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) has recently been recognized as a significant risk factor for bone fragility. Careful investigations of bone mechanical properties in human studies suggested possible alterations of bone composition, although this axis has poorly been investigated. The main aim of this study was to evaluate the impact of high fat diet-induced diabetes and therapy using the clinically approved GLP-1 receptor agonist, exenatide, on tissue bone mechanical properties and compositional parameters. Male mice had free access to high fat diet for 16 weeks to induce diabetes prior to commencement of the study. Exenatide was administered twice daily by i.p. injection at a dose of 25 nmol/kg for 52 days. Normal and high fat diet fed (HFD) mice injected with saline were used as controls. Bone mechanical properties was assessed at the organ level by 3-point bending and at the tissue level by nanoindentation. Bone microarchitecture was investigated by microcomputed tomography and bone composition was evaluated by Fourier transform infrared imaging. HFD mice exhibited profound alterations of bone mechanical properties at both the organ and tissue level. Collagen maturity as well as trabecular and cortical bone microarchitectures were abnormal. Administration of exenatide, led to clear ameliorations in bone mechanical properties at the organ and tissue levels by modifications of both cortical microarchitecture and bone compositional parameters (collagen maturity, mineral crystallinity, carbonate/phosphate ratio, acid phosphate content). These results bring new light on the mode of action of exenatide in bone physiology and demonstrate the value of GLP-1 mimetics in the treatment of fragility fractures in diabetes.
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Affiliation(s)
- Sity Aishah Mansur
- School of Biomedical Sciences, University of Ulster, Coleraine, United Kingdom
| | - Aleksandra Mieczkowska
- Groupe études remodelage osseux et biomatériaux, GEROM, SFR 42-08, Université d'Angers, Institut de Biologie en Santé, CHU d'Angers, Angers, France
| | - Peter R. Flatt
- School of Biomedical Sciences, University of Ulster, Coleraine, United Kingdom
| | - Daniel Chappard
- Groupe études remodelage osseux et biomatériaux, GEROM, SFR 42-08, Université d'Angers, Institut de Biologie en Santé, CHU d'Angers, Angers, France
- Service commun d'imageries et d'analyses microscopiques, SCIAM, SFR 42-08, Université d'Angers, Institut de Biologie en Santé, CHU d'Angers, Angers, France
- Bone Pathology Unit, Angers University Hospital, Angers, France
| | - Nigel Irwin
- School of Biomedical Sciences, University of Ulster, Coleraine, United Kingdom
| | - Guillaume Mabilleau
- Groupe études remodelage osseux et biomatériaux, GEROM, SFR 42-08, Université d'Angers, Institut de Biologie en Santé, CHU d'Angers, Angers, France
- Service commun d'imageries et d'analyses microscopiques, SCIAM, SFR 42-08, Université d'Angers, Institut de Biologie en Santé, CHU d'Angers, Angers, France
- Bone Pathology Unit, Angers University Hospital, Angers, France
- *Correspondence: Guillaume Mabilleau
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27
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Rony L, Lancigu R, Hubert L. Intraosseous metal implants in orthopedics: A review. Morphologie 2018; 102:231-242. [PMID: 30348489 DOI: 10.1016/j.morpho.2018.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/28/2018] [Accepted: 09/28/2018] [Indexed: 04/21/2023]
Abstract
Metal implants are biomaterials widely used in orthopedics. They are both used in osteosynthesis and arthroplasty. Their mechanical properties, biocompatibility and resistance to corrosion make them a widely used option in orthopedics. Alloys are the most commonly used metals in orthopedics. As far as physical traumas are concerned, implants such as screws, plates and/or nails are used for osteosynthesis as they ensure the stability of the fractured area and contribute to bone healing. Prostheses are used in arthroplasty to restore joint function for as long as possible. Contact between bone and the prosthesis induces bone remodeling at the interface between metal and bone even if the metal is recognized as biocompatible. Upon time, the interface between the metal implant and the bony tissue is continuously modified and adapted. Hip prosthesis is a typical example of intraosseous metal implant whose bone/implant interface has been extensively studied. Metal can be altered in vivo by different mechanisms including corrosion and fretting. An altered torque friction leads to wear debris that accumulate in the peri-prosthetic tissues causing metallosis.
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Affiliation(s)
- L Rony
- Groupe Études Remodelage Osseux et bioMatériaux (GEROM), LabCom NextBone, SFR 42 08, université d'Angers, CHU d'Angers, IRIS-IBS institut de biologie en santé, 49933 Angers cedex, France; Département de chirurgie osseuse, CHU d'Angers, 49033 Angers cedex, France.
| | - R Lancigu
- Département de chirurgie osseuse, CHU d'Angers, 49033 Angers cedex, France
| | - L Hubert
- Département de chirurgie osseuse, CHU d'Angers, 49033 Angers cedex, France
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28
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Ishimaru Y, Oshima Y, Imai Y, Iimura T, Takanezawa S, Hino K, Miura H. Raman Spectroscopic Analysis to Detect Reduced Bone Quality after Sciatic Neurectomy in Mice. Molecules 2018; 23:molecules23123081. [PMID: 30477282 PMCID: PMC6321365 DOI: 10.3390/molecules23123081] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/13/2018] [Accepted: 11/24/2018] [Indexed: 01/07/2023] Open
Abstract
Bone mineral density (BMD) is a commonly used diagnostic indicator for bone fracture risk in osteoporosis. Along with low BMD, bone fragility accounts for reduced bone quality in addition to low BMD, but there is no diagnostic method to directly assess the bone quality. In this study, we investigated changes in bone quality using the Raman spectroscopic technique. Sciatic neurectomy (NX) was performed in male C57/BL6J mice (NX group) as a model of disuse osteoporosis, and sham surgery was used as an experimental control (Sham group). Eight months after surgery, we acquired Raman spectral data from the anterior cortical surface of the proximal tibia. We also performed a BMD measurement and micro-CT measurement to investigate the pathogenesis of osteoporosis. Quantitative analysis based on the Raman peak intensities showed that the carbonate/phosphate ratio and the mineral/matrix ratio were significantly higher in the NX group than in the Sham group. There was direct evidence of alterations in the mineral content associated with mechanical properties of bone. To fully understand the spectral changes, we performed principal component analysis of the spectral dataset, focusing on the matrix content. In conclusion, Raman spectroscopy provides reliable information on chemical changes in both mineral and matrix contents, and it also identifies possible mechanisms of disuse osteoporosis.
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Affiliation(s)
- Yasumitsu Ishimaru
- Department of Bone and Joint Surgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon 791-0295, Ehime, Japan.
| | - Yusuke Oshima
- Biomedical Optics Laboratory, Graduate School of Biomedical Engineering Tohoku University, Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Miyagi, Japan.
- Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Idaigaoka, Hasama-machi, Yufu City 879-5593, Oita, Japan.
- Oral-Maxillofacial Surgery and Orthodontics, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku 113-8655, Tokyo, Japan.
| | - Yuuki Imai
- Division of Integrative Pathophysiology, Proteo-Science Center, Ehime University, Shitsukawa, Toon 791-0295, Ehime, Japan.
| | - Tadahiro Iimura
- Division of Bio-imaging, Proteo-Science Center, Ehime university graduate school of medicine, Shitsukawa, Toon 791-0295, Ehime, Japan.
- Division of Analytical Bio-Medicine, Advanced Research Support Center, Ehime University, Shitsukawa, Toon 791-0295, Ehime, Japan.
| | - Sota Takanezawa
- Molecular Medicine for Pathogenesis, Ehime university graduate school of medicine, Shitsukawa, Toon 791-0295, Ehime, Japan.
| | - Kazunori Hino
- Department of Bone and Joint Surgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon 791-0295, Ehime, Japan.
| | - Hiromasa Miura
- Department of Bone and Joint Surgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon 791-0295, Ehime, Japan.
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29
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Bone Regeneration by Novel Bioactive Glasses Containing Strontium and/or Magnesium: A Preliminary In-Vivo Study. MATERIALS 2018; 11:ma11112223. [PMID: 30413108 PMCID: PMC6266095 DOI: 10.3390/ma11112223] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/17/2018] [Accepted: 11/04/2018] [Indexed: 01/08/2023]
Abstract
In this work, a set of novel bioactive glasses have been tested in vivo in an animal model. The new compositions, characterized by an exceptional thermal stability and high in vitro bioactivity, contain strontium and/or magnesium, whose biological benefits are well documented in the literature. To simulate a long-term implant and to study the effect of the complete dissolution of glasses, samples were implanted in the mid-shaft of rabbits' femur and analyzed 60 days after the surgery; such samples were in undersized powder form. The statistical significance with respect to the type of bioactive glass was analyzed by Kruskal⁻Wallis test. The results show high levels of bone remodeling, several new bone formations containing granules of calcium phosphate (sometimes with amounts of strontium and/or magnesium), and the absence of adverse effects on bone processes due to the almost complete glass dissolution. In vivo results confirming the cell culture outcomes of a previous study highlighted that these novel bioglasses had osteostimulative effect without adverse skeletal reaction, thus indicating possible beneficial effects on bone formation processes. The presence of strontium in the glasses seems to be particularly interesting.
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30
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Furukawa T, Matsunaga S, Morioka T, Nakano T, Abe S, Yoshinari M, Yajima Y. Study on bone quality in the human mandible-Alignment of biological apatite crystallites. J Biomed Mater Res B Appl Biomater 2018; 107:838-846. [PMID: 30296354 DOI: 10.1002/jbm.b.34180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/18/2018] [Accepted: 05/28/2018] [Indexed: 11/09/2022]
Abstract
The importance of considering bone quality during oral implant treatment is increasingly being recognized. Assessment of bone quality in response to changes in the jaw bone is extremely important when planning treatment. The present study analyzed biological apatite (BAp) crystallites, a bone quality factor, in order to investigate crystallographic anisotropy in dentate and edentulous human mandibles. Using mandibular samples from Japanese adult cadavers, a region of interest was established comprising cortical bone in the central incisors. Samples were classified into five morphological categories based on the extent of bone resorption. Bone mineral density (BMD) was measured and diffraction intensity ratios were calculated using a microbeam X-ray diffraction system. While no differences were observed in BMD, differences were observed in BAp crystallite alignment between the measurement points. In the alveolar region, samples with residual alveolar bone showed strong alignment in the occlusal direction, while samples with marked alveolar bone resorption had preferential alignment in the mesiodistal direction. The present findings suggest that tooth loss and the extent of alveolar bone resorption affects bone quality in the mandible. © 2018 Wiley Periodicals, Inc. J. Biomed. Mater. Res. Part B: 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 838-846, 2019.
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Affiliation(s)
- Takehiro Furukawa
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan.,Department of Oral and Maxillofacial Implantology, Tokyo Dental College, Tokyo, Japan
| | - Satoru Matsunaga
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan.,Department of Anatomy, Tokyo Dental College, Tokyo, Japan
| | - Toshiyuki Morioka
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan.,Department of Removable Partial Prosthodontics, Tokyo Dental College, Tokyo, Japan
| | - Takayoshi Nakano
- Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Shinichi Abe
- Department of Anatomy, Tokyo Dental College, Tokyo, Japan
| | - Masao Yoshinari
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan
| | - Yasutomo Yajima
- Oral Health Science Center, Tokyo Dental College, Tokyo, Japan.,Department of Oral and Maxillofacial Implantology, Tokyo Dental College, Tokyo, Japan
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Rieger R, Auregan JC, Hoc T. Micro-finite-element method to assess elastic properties of trabecular bone at micro- and macroscopic level. Morphologie 2018; 102:12-20. [PMID: 28893491 DOI: 10.1016/j.morpho.2017.07.175] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 06/26/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE OF THE STUDY The objective of the present study is to assess the mechanical behavior of trabecular bone based on microCT imaging and micro-finite-element analysis. In this way two methods are detailed: (i) direct determination of macroscopic elastic property of trabecular bone; (ii) inverse approach to assess mechanical properties of trabecular bone tissue. PATIENTS Thirty-five females and seven males (forty-two subjects) mean aged (±SD) 80±11.7 years from hospitals of Assistance publique-Hôpitaux de Paris (AP-HP) diagnosed with osteoporosis following a femoral neck fracture due to a fall from standing were included in this study. MATERIALS AND METHODS Fractured heads were collected during hip replacement surgery. Standardized bone cores were removed from the femoral head's equator by a trephine in a water bath. MicroCT images acquisition and analysis were performed with CTan® software and bone volume fraction was then determined. Micro-finite-element simulations were per-formed using Abaqus 6.9-2® software in order to determine the macroscopic mechanical behaviour of the trabecular bone. After microCT acquisition, a longitudinal compression test was performed and the experimental macroscopic Young's Modulus was extracted. An inverse approach based on the whole trabecular bone's mechanical response and micro-finite-element analysis was performed to determine microscopic mechanical properties of trabecular bone. RESULTS In the present study, elasticity of the tissue was shown to be similar to that of healthy tissue but with a lower yield stress. CONCLUSION Classical histomorphometric analysis form microCT imaging associated with an inverse micro-finite-element method allowed to assess microscopic mechanical trabecular bone parameters.
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Affiliation(s)
- R Rieger
- LTDS, UMR CNRS 5513, école centrale de Lyon, avenue Guy-de-Collongue, 69134 Ecully cedex, France
| | - J C Auregan
- LTDS, UMR CNRS 5513, école centrale de Lyon, avenue Guy-de-Collongue, 69134 Ecully cedex, France; Department of orthopedic, Antoine Béclère Hospital, AP-HP, 157, rue de la Porte-de-Trivaux, Clamart, France
| | - T Hoc
- LTDS, UMR CNRS 5513, école centrale de Lyon, avenue Guy-de-Collongue, 69134 Ecully cedex, France.
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Shi C, Mandair GS, Zhang H, Vanrenterghem GG, Ridella R, Takahashi A, Zhang Y, Kohn DH, Morris MD, Mishina Y, Sun H. Bone morphogenetic protein signaling through ACVR1 and BMPR1A negatively regulates bone mass along with alterations in bone composition. J Struct Biol 2018; 201:237-246. [PMID: 29175363 PMCID: PMC5820174 DOI: 10.1016/j.jsb.2017.11.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/21/2017] [Accepted: 11/22/2017] [Indexed: 12/19/2022]
Abstract
Bone quantity and bone quality are important factors in determining the properties and the mechanical functions of bone. This study examined the effects of disrupting bone morphogenetic protein (BMP) signaling through BMP receptors on bone quantity and bone quality. More specifically, we disrupted two BMP receptors, Acvr1 and Bmpr1a, respectively, in Osterix-expressing osteogenic progenitor cells in mice. We examined the structural changes to the femora from 3-month old male and female conditional knockout (cKO) mice using micro-computed tomography (micro-CT) and histology, as well as compositional changes to both cortical and trabecular compartments of bone using Raman spectroscopy. We found that the deletion of Acvr1 and Bmpr1a, respectively, in an osteoblast-specific manner resulted in higher bone mass in the trabecular compartment. Disruption of Bmpr1a resulted in a more significantly increased bone mass in the trabecular compartment. We also found that these cKO mice showed lower mineral-to-matrix ratio, while tissue mineral density was lower in the cortical compartment. Collagen crosslink ratio was higher in both cortical and trabecular compartments of male cKO mice. Our study suggested that BMP signaling in osteoblast mediated by BMP receptors, namely ACVR1 and BMPR1A, is critical in regulating bone quantity and bone quality.
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Affiliation(s)
- Ce Shi
- Department of Oral Pathology, School and Hospital of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130000, China; Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - Gurjit S Mandair
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - Honghao Zhang
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - Gloria G Vanrenterghem
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - Ryan Ridella
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48108-1055, USA
| | - Akira Takahashi
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - Yanshuai Zhang
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - David H Kohn
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA; Biomedical Engineering College of Engineering, University of Michigan, MI 48109-2110, USA.
| | - Michael D Morris
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48108-1055, USA.
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, University of Michigan, School of Dentistry, 1011 N. University Avenue, Ann Arbor, MI 48109-1078, USA.
| | - Hongchen Sun
- Department of Oral Pathology, School and Hospital of Stomatology, Jilin University, 1500 Qinghua Road, Changchun 130000, China.
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Mabilleau G, Pereira M, Chenu C. Novel skeletal effects of glucagon-like peptide-1 (GLP-1) receptor agonists. J Endocrinol 2018; 236:R29-R42. [PMID: 28855317 DOI: 10.1530/joe-17-0278] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 08/30/2017] [Indexed: 12/14/2022]
Abstract
Type 2 diabetes mellitus (T2DM) leads to bone fragility and predisposes to increased risk of fracture, poor bone healing and other skeletal complications. In addition, some anti-diabetic therapies for T2DM can have notable detrimental skeletal effects. Thus, an appropriate therapeutic strategy for T2DM should not only be effective in re-establishing good glycaemic control but also in minimising skeletal complications. There is increasing evidence that glucagon-like peptide-1 receptor agonists (GLP-1RAs), now greatly prescribed for the treatment of T2DM, have beneficial skeletal effects although the underlying mechanisms are not completely understood. This review provides an overview of the direct and indirect effects of GLP-1RAs on bone physiology, focusing on bone quality and novel mechanisms of action on the vasculature and hormonal regulation. The overall experimental studies indicate significant positive skeletal effects of GLP-1RAs on bone quality and strength although their mechanisms of actions may differ according to various GLP-1RAs and clinical studies supporting their bone protective effects are still lacking. The possibility that GLP-1RAs could improve blood supply to bone, which is essential for skeletal health, is of major interest and suggests that GLP-1 anti-diabetic therapy could benefit the rising number of elderly T2DM patients with osteoporosis and high fracture risk.
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Affiliation(s)
- Guillaume Mabilleau
- GEROM Groupe Etudes Remodelage Osseux et biomatériauxIRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, Angers, France
| | - Marie Pereira
- Centre for Complement and Inflammation Research (CCIR)Department of Medicine, Imperial College London, London, UK
| | - Chantal Chenu
- Department of Comparative Biomedical SciencesRoyal Veterinary College, London, UK
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Fan R, Liu J, Jia Z, Deng Y, Liu J. Determination of a tissue-level failure evaluation standard for rat femoral cortical bone utilizing a hybrid computational-experimental method. Proc Inst Mech Eng H 2017; 232:80-89. [PMID: 29165039 DOI: 10.1177/0954411917743275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Macro-level failure in bone structure could be diagnosed by pain or physical examination. However, diagnosing tissue-level failure in a timely manner is challenging due to the difficulty in observing the interior mechanical environment of bone tissue. Because most fractures begin with tissue-level failure in bone tissue caused by continually applied loading, people attempt to monitor the tissue-level failure of bone and provide corresponding measures to prevent fracture. Many tissue-level mechanical parameters of bone could be predicted or measured; however, the value of the parameter may vary among different specimens belonging to a kind of bone structure even at the same age and anatomical site. These variations cause difficulty in representing tissue-level bone failure. Therefore, determining an appropriate tissue-level failure evaluation standard is necessary to represent tissue-level bone failure. In this study, the yield and failure processes of rat femoral cortical bones were primarily simulated through a hybrid computational-experimental method. Subsequently, the tissue-level strains and the ratio between tissue-level failure and yield strains in cortical bones were predicted. The results indicated that certain differences existed in tissue-level strains; however, slight variations in the ratio were observed among different cortical bones. Therefore, the ratio between tissue-level failure and yield strains for a kind of bone structure could be determined. This ratio may then be regarded as an appropriate tissue-level failure evaluation standard to represent the mechanical status of bone tissue.
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Affiliation(s)
- Ruoxun Fan
- 1 Department of Automotive Engineering, Jilin Institute of Chemical Technology, Jilin, P.R. China
| | - Jie Liu
- 1 Department of Automotive Engineering, Jilin Institute of Chemical Technology, Jilin, P.R. China
| | - Zhengbin Jia
- 2 Department of Engineering Mechanics, Jilin University, Changchun, P.R. China
| | - Ying Deng
- 3 School of Public Health, Jilin University, Changchun, P.R. China
| | - Jun Liu
- 4 Hand & Foot Surgery and Reparative & Reconstructive Surgery Center, No. 2 Hospital of Jilin University, Changchun, P.R. China
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Zhou M, Li J, Wu J, Yang Y, Zeng X, Lv X, Cui L, Yao W, Liu Y. Preventive effects of Polygonum multiflorum on glucocorticoid-induced osteoporosis in rats. Exp Ther Med 2017; 14:2445-2460. [PMID: 28962180 PMCID: PMC5609219 DOI: 10.3892/etm.2017.4802] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 03/10/2017] [Indexed: 11/29/2022] Open
Abstract
In Traditional Chinese Medicine, Polygonum multiflorum (PM) is known for its anti-aging properties. A previous study by our group showed that extracts of PM were able to prevent and treat bone loss in vivo, and the active components emodin and 2,3,5,4,-tetrahydroxystilbene-2-O-β-glucoside (TSG) promoted the osteogenic differentiation of mesenchymal stem cells in vitro. The aim of the present study was to investigate the preventive effects of PM on glucocorticoid-induced osteoporosis (GIO) in rats. A crude extract of PM was prepared with 75% ethanol, purified and enriched using a D-101 macroresin column and elution with 30% ethanol, and the material obtained was assessed by high-performance liquid chromatography. Male or female Sprague Dawley rats (n=180) were randomly divided into nine groups: Control, prednisone, prednisone plus calcitriol (CAL), prednisone plus 30% ethanolic eluate of PM [high (H), medium (M) and low (L) dose] and prednisone plus crude extract of PM (H, M and L dose). Prednisone was orally administered to the osteoporosis model rats for 21 weeks, alongside which they received PM extracts. The weight of the viscera, anterior tibial muscle and other tissues was recorded at the end of the experiment. The femur and lumbar vertebra were collected for the measurement of three-dimensional microarchitecture by micro-computed tomography scanning, assessment of biomechanical properties and determination of bone mineral density (BMD). In the 30% ethanolic eluate of the PM extract, the content of TSG and combined anthraquinone was 9.20 and 0.15%, respectively, and that in the crude extract of PM was 2.23 and 0.03%, respectively. Over 6 weeks, the weight of the rats the in prednisone group decreased (P<0.05), while the weight of rats treated with M and H doses of 30% ethanolic eluate was increased compared with that in the prednisone group (P<0.05). Rats exposed to prednisone exhibited a deteriorated bone microarchitecture, low BMD, decreased bone volume/total volume and poor biomechanical properties. Furthermore, the weight of the adrenal gland and the anterior tibial muscle was decreased. 30% ethanolic eluate of PM at M and L doses and crude extract of PM at the H dose counteracted the alterations of skeletal and other characteristics induced by prednisone in rats, as did CAL. In conclusion, extracts of PM exerted a protective effect on bone tissue in GIO rats.
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Affiliation(s)
- Manru Zhou
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
- Department of Pharmacy, Xinhua College of Sun Yat-sen University, Guangzhou, Guangdong 510520, P.R. China
| | - Jin Li
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Jingkai Wu
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Yajun Yang
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Xiaobing Zeng
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Xiaohua Lv
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Liao Cui
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Weimin Yao
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
| | - Yuyu Liu
- Department of Pharmacology, Guangdong Medical University, Zhanjiang, Guangdong 524023, P.R. China
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Kim KM, Lee SY, Rhee Y. Influence of Dosing Interval and Administration on the Bone Metabolism, Skeletal Effects, and Clinical Efficacy of Parathyroid Hormone in Treating Osteoporosis: A Narrative Review. JBMR Plus 2017; 1:36-45. [PMID: 30283879 PMCID: PMC6124169 DOI: 10.1002/jbm4.10005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 04/09/2017] [Indexed: 01/05/2023] Open
Abstract
Recombinant human parathyroid hormone (PTH) is the key anabolic agent used for preventing fracture in postmenopausal women with osteoporosis. In bone metabolism, PTH signaling is mediated through a G protein–coupled receptor that affects various post‐receptor signaling pathways. Results of preclinical and clinical studies have shown that PTH improves both the structure and strength of bone tissue. Once daily subcutaneous injection of the PTH fragment, teriparatide (PTH [1‐34]), is the most commonly recommended formulation and dosing strategy in clinical practice. However, other dosing intervals, formulations, and routes have been investigated in preclinical and clinical studies. In particular, once‐weekly and cyclical administration have been investigated mainly as a means of reducing the high direct costs of treatment. In preclinical studies, bone formation/resorption markers, bone mineral density measurements, and histomorphometric parameters improved with both once‐daily and once‐weekly administration. However, the magnitude and duration of such improvements were generally greater with once‐daily PTH administration. In clinical studies, reductions in fracture incidence were also noted with both once‐daily and once‐weekly PTH administration, although improvements in nonvertebral fractures are less evident with once‐weekly administration. This narrative review details the differences between PTH formulation and dosing strategies in relation to preclinical and clinical efficacy/safety parameters, although it should be stressed that no head‐to‐head studies allow direct comparisons. This review also seeks to outline practical considerations involved with PTH prescribing and new directions in research regarding routes of administration. © 2017 The Authors. JBMR Plus is published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research.
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Affiliation(s)
- Kyoung Min Kim
- Division of Endocrinology and Metabolism Department of Internal Medicine Seoul National University Bundang Hospital and Seoul National University College of Medicine Seongnam Republic of Korea
| | | | - Yumie Rhee
- Department of Internal Medicine, Endocrine Research Institute Severance Hospital, Yonsei University College of Medicine Seoul Republic of Korea
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Cruel M, Granke M, Bosser C, Audran M, Hoc T. Chronic alcohol abuse in men alters bone mechanical properties by affecting both tissue mechanical properties and microarchitectural parameters. Morphologie 2017; 101:88-96. [PMID: 28410916 DOI: 10.1016/j.morpho.2017.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 03/01/2017] [Accepted: 03/08/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVE OF THE STUDY Alcohol-induced secondary osteoporosis in men has been characterized by higher fracture prevalence and a modification of bone microarchitecture. Chronic alcohol consumption impairs bone cell activity and results in an increased fragility. A few studies highlighted effects of heavy alcohol consumption on some microarchitectural parameters of trabecular bone. But to date and to our knowledge, micro- and macro-mechanical properties of bone of alcoholic subjects have not been investigated. PATIENTS In the present study, mechanical properties and microarchitecture of trabecular bone samples from the iliac crest of alcoholic male patients (n=15) were analyzed and compared to a control group (n=8). MATERIALS AND METHODS Nanoindentation tests were performed to determine the tissue's micromechanical properties, micro-computed tomography was used to measure microarchitectural parameters, and numerical simulations provided the apparent mechanical properties of the samples. RESULTS Compared to controls, bone tissue from alcoholic patients exhibited an increase of micromechanical properties at tissue scale, a significant decrease of apparent mechanical properties at sample scale, and significant changes in several microarchitectural parameters. In particular, a crucial role of structure model index (SMI) on mechanical properties was identified. CONCLUSIONS 3D microarchitectural parameters are at least as important as bone volume fraction to predict bone fracture risk in the case of alcoholic patients.
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Affiliation(s)
- M Cruel
- LTDS, UMR CNRS 5513, École centrale de Lyon, université de Lyon, 36, avenue Guy-de-Collongue, 69134 Écully cedex, France
| | - M Granke
- Department of orthopaedic surgery and rehabilitation, Vanderbilt university medical center, 1215 21st Ave S #4200, 37232 Nashville, TN, USA
| | - C Bosser
- LTDS, UMR CNRS 5513, École centrale de Lyon, université de Lyon, 36, avenue Guy-de-Collongue, 69134 Écully cedex, France
| | - M Audran
- GEROM, research group on bone remodeling and biomaterials, LHEA/IRIS-IBS, université d'Angers, 4, rue Larrey, 49933 Angers cedex, France
| | - T Hoc
- LTDS, UMR CNRS 5513, École centrale de Lyon, université de Lyon, 36, avenue Guy-de-Collongue, 69134 Écully cedex, France.
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Aguado E, Mabilleau G, Goyenvalle E, Chappard D. Hypodynamia Alters Bone Quality and Trabecular Microarchitecture. Calcif Tissue Int 2017; 100:332-340. [PMID: 28160025 DOI: 10.1007/s00223-017-0235-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 01/07/2017] [Indexed: 01/06/2023]
Abstract
Disuse induces a rapid bone loss in humans and animals; hypodynamia/sedentarity is now recognized as a risk factor for osteoporosis. Hypodynamia also decreases bone mass but its effects are largely unknown and only few animal models have been described. Hypodynamic chicken is recognized as a suitable model of bone loss but the effects on the quality have not been fully explored. We have used ten chickens bred in a large enclosure (FREE group); ten others were confined in small cages with little space to move around (HYPO group). They were sacrificed at 53 days and femurs were evaluated by microcomputed tomography (microCT) and nanoindentation. Sections (4 µm thick) were analyzed by Fourier Transform InfraRed Microspectroscopy (FTIR) to see the effects on mineralization and collagen and quantitative backscattered electron imaging (qBEI) to image the mineral of the bone matrix. Trabecular bone volume and microarchitecture were significantly altered in the HYPO group. FTIR showed a significant reduction of the mineral-to-matrix ratio in the HYPO group associated with an increase in the carbonate content and an increase in crystallinity (calculated as the area ratio of subbands located at 1020 and 1030 cm-1) indicating a poor quality of the mineral. Collagen maturity (calculated as the area ratio of subbands located at 1660 and 1690 cm-1) was significantly reduced in the HYPO group. Reduced biomechanical properties were observed at the tissue level. Confined chicken represents a new model for the study of hypodynamia because bone changes are not created by a surgical lesion or a traumatic method. Animals have a reduced bone mass and present with an altered bone matrix quality which is less mineralized and whose collagen contains less crosslinks than in control chicken.
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Affiliation(s)
- Eric Aguado
- ONIRIS, Ecole Nationale Vétérinaire, route de Gachet, 44307, Nantes Cedex 3, France
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933, ANGERS Cedex, France
| | - Guillaume Mabilleau
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933, ANGERS Cedex, France
| | - Eric Goyenvalle
- ONIRIS, Ecole Nationale Vétérinaire, route de Gachet, 44307, Nantes Cedex 3, France
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933, ANGERS Cedex, France
| | - Daniel Chappard
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, Université d'Angers, 49933, ANGERS Cedex, France.
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Mabilleau G. Interplay between bone and incretin hormones: A review. Morphologie 2017; 101:9-18. [PMID: 27423214 DOI: 10.1016/j.morpho.2016.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 06/06/2023]
Abstract
Bone is a tissue with multiple functions that is built from the molecular to anatomical levels to resist and adapt to mechanical strains. Among all the factors that might control the bone organization, a role for several gut hormones called "incretins" has been suspected. The present review summarizes the current evidences on the effects of glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) in bone physiology.
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Affiliation(s)
- G Mabilleau
- GEROM-LHEA, groupe d'études remodelage osseux et biomatériaux, institut de biologie en santé, université d'Angers, 4, rue Larrey, 49933 Angers cedex 09, France; SCIAM, institut de biologie en santé, université d'Angers, 4, rue Larrey, 49933 Angers cedex 09, France.
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40
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Kün-Darbois JD, Guillaume B, Chappard D. Asymmetric bone remodeling in mandibular and maxillary tori. Clin Oral Investig 2017; 21:2781-2788. [PMID: 28229236 DOI: 10.1007/s00784-017-2080-8] [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: 06/09/2016] [Accepted: 02/09/2017] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Tori are frequent paucisymptomatic bony outgrowths of the oral cavity in three locations: torus palatinus (TP), mandibularis (TM), and maxillaris (TMax). Their usually described histological characteristics are unspecific: normal cortical bone with more or less trabecular bone. The aim of this study was to describe tori's specific morphological and histomorphometric characteristics. MATERIALS AND METHODS Histological characteristics in a series of 18 tori collected after surgical removal were analyzed. Microcomputed tomography provided a 3D analysis. Mineral apposition rate (MAR) was measured after double tetracycline labeling. Osteoid tissue was identified by Goldner's trichrome and osteoclasts by the tartrate resistant acid phosphatase identification in undecalcified sections. Iron and aluminum were detected by histochemical staining methods. Osteoid thickness and MAR were determined at the outer surface of the torus and in the Haversian canals. RESULTS Tori appeared made of lamellar Haversian bone in 16/18 cases. Osteoid thickness did not differ between the outer surface and within the canals. An asymmetric bone remodeling was observed in the Haversian canals of 15 tori: osteoid seams were deposited on the side close to the free torus surface, and Howship's lacunae with numerous osteoclasts were observed on the opposite side. A high MAR was found at the surface of the tori and within the canals. There was no iron or aluminum deposit. CONCLUSIONS Tori may be characterized by a specific asymmetric bone remodeling which seems to determine their shape. CLINICAL RELEVANCE This finding could constitute a specific histological feature allowing to differentiate tori from exostoses. Graphical abstract.
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Affiliation(s)
- Jean-Daniel Kün-Darbois
- GEROM Groupe d'Etude Remodelage Osseux et bioMatériaux, Research Group on Bone Remodeling and bioMaterials, LHEA, IRIS-IBS Institut de Biologie en Santé, Université d'Angers, 4 rue Larrey, 49933, Angers Cedex, France. .,Department of Maxillo-facial surgery, CHU d'Angers, 4 rue Larrey, 49933, Angers Cedex, France.
| | - Bernard Guillaume
- GEROM Groupe d'Etude Remodelage Osseux et bioMatériaux, Research Group on Bone Remodeling and bioMaterials, LHEA, IRIS-IBS Institut de Biologie en Santé, Université d'Angers, 4 rue Larrey, 49933, Angers Cedex, France.,CFI Centre Français d'Implantologie, 6 rue de Rome, 75008, Paris, France
| | - Daniel Chappard
- GEROM Groupe d'Etude Remodelage Osseux et bioMatériaux, Research Group on Bone Remodeling and bioMaterials, LHEA, IRIS-IBS Institut de Biologie en Santé, Université d'Angers, 4 rue Larrey, 49933, Angers Cedex, France
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Mundim MBV, Dias DR, Costa RM, Leles CR, Azevedo-Marques PM, Ribeiro-Rotta RF. Intraoral radiographs texture analysis for dental implant planning. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2016; 136:89-96. [PMID: 27686706 DOI: 10.1016/j.cmpb.2016.08.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 07/23/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Computer vision extracts features or attributes from images improving diagnosis accuracy and aiding in clinical decisions. This study aims to investigate the feasibility of using texture analysis of periapical radiograph images as a tool for dental implant treatment planning. METHODS Periapical radiograph images of 127 jawbone sites were obtained before and after implant placement. From the superimposition of the pre- and post-implant images, four regions of interest (ROI) were delineated on the pre-implant images for each implant site: mesial, distal and apical peri-implant areas and a central area. Each ROI was analysed using Matlab® software and seven image attributes were extracted: mean grey level (MGL), standard deviation of grey levels (SDGL), coefficient of variation (CV), entropy (En), contrast, correlation (Cor) and angular second moment (ASM). Images were grouped by bone types-Lekholm and Zarb classification (1,2,3,4). Peak insertion torque (PIT) and resonance frequency analysis (RFA) were recorded during implant placement. Differences among groups were tested for each image attribute. Agreement between measurements of the peri-implant ROIs and overall ROI (peri-implant + central area) was tested, as well as the association between primary stability measures (PIT and RFA) and texture attributes. RESULTS Differences among bone type groups were found for MGL (p = 0.035), SDGL (p = 0.024), CV (p < 0.001) and En (p < 0.001). The apical ROI showed a significant difference from the other regions for all attributes, except Cor. Concordance correlation coefficients were all almost perfect (ρ > 0.93), except for ASM (ρ = 0.62). Texture attributes were significantly associated with the implant stability measures. CONCLUSION Texture analysis of periapical radiographs may be a reliable non-invasive quantitative method for the assessment of jawbone and prediction of implant stability, with potential clinical applications.
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Affiliation(s)
- Mayara B V Mundim
- School of Dentistry, Universidade Federal de Goias, Avenida Universitária esquina com 1a Avenida s/n, Setor Universitário, 74605-220 Goiânia, Goiás, Brazil
| | - Danilo R Dias
- School of Dentistry, Universidade Federal de Goias, Avenida Universitária esquina com 1a Avenida s/n, Setor Universitário, 74605-220 Goiânia, Goiás, Brazil
| | - Ronaldo M Costa
- Institute of Informatics, Universidade Federal de Goias, Alameda Palmeiras, Quadra D, Câmpus Samambaia, 74690-900 Goiânia, Goiás, Brazil
| | - Cláudio R Leles
- School of Dentistry, Universidade Federal de Goias, Avenida Universitária esquina com 1a Avenida s/n, Setor Universitário, 74605-220 Goiânia, Goiás, Brazil
| | - Paulo M Azevedo-Marques
- Department of Internal Medicine, Ribeirão Preto Medical School, Universidade de São Paulo, Avenida Bandeirantes, n° 3900, Bairro Monte Alegre, 14048-900, Ribeirao Preto, São Paulo, Brazil
| | - Rejane F Ribeiro-Rotta
- School of Dentistry, Universidade Federal de Goias, Avenida Universitária esquina com 1a Avenida s/n, Setor Universitário, 74605-220 Goiânia, Goiás, Brazil.
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Mabilleau G, Perrot R, Flatt PR, Irwin N, Chappard D. High fat-fed diabetic mice present with profound alterations of the osteocyte network. Bone 2016; 90:99-106. [PMID: 27312542 DOI: 10.1016/j.bone.2016.06.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/28/2016] [Accepted: 06/11/2016] [Indexed: 12/31/2022]
Abstract
Diabetes mellitus is considered to be an independent risk factor for bone fragility fractures. Reductions in bone mass, observed only with type 1 diabetes mellitus, as well as modifications of bone microarchitectures and tissue material properties are landmarks of diabetes-related bone alterations. An interesting feature observed in type 2 diabetes mellitus (T2DM) is the augmented concentration in circulating sclerostin. This observation prompts us to hypothesize that modifications of osteocyte network and perilacunar mineralization occur in T2DM. As such, the aims of the present study were to ascertain by quantitative backscattered electron imaging, confocal microscopy and image analysis, modifications of perilacunar tissue mineral density, osteocyte morphology and osteocyte network topology in a mouse model of high fat-induced type 2 diabetes. As compared with lean control animals, diabetic mice exhibited a significant 48% decrease in perilacunar mineralization heterogeneity although mean perilacunar mineralization was unchanged. Furthermore, in diabetic animals, osteocyte volume was significantly augmented by 34% with no change in the overall number of dendrite processes. Finally, the network topology was profoundly modified in diabetic mice with increases in the mean node degree, mean node volume and hub numbers whilst the mean link length was reduced. Overall, it appeared that in diabetic animals, the dendritic network exhibited features of a scale-free network as opposed to the single-scale characteristic observed in lean controls. However, it is important to ascertain whether diabetic patients exhibit such modifications of the osteocyte network and whether anti-diabetic drugs could restore normal osteocyte and network parameters, thereby improving bone quality and protecting against fragility fractures.
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Affiliation(s)
- Guillaume Mabilleau
- GEROM-LHEA, Institut de Biologie en Santé, Angers, Université d'Angers, CHU d'Angers, 49933 Angers, France; SCIAM, Institut de Biologie en Santé, Université d'Angers, CHU d'Angers, 49933 Angers, France.
| | - Rodolphe Perrot
- SCIAM, Institut de Biologie en Santé, Université d'Angers, CHU d'Angers, 49933 Angers, France
| | - Peter R Flatt
- SAAD Centre for Pharmacy and Diabetes, Diabetes Research group, Biomedical Sciences Research Institute, University of Ulster, BT52 1SA, Coleraine, United Kingdom
| | - Nigel Irwin
- SAAD Centre for Pharmacy and Diabetes, Diabetes Research group, Biomedical Sciences Research Institute, University of Ulster, BT52 1SA, Coleraine, United Kingdom
| | - Daniel Chappard
- GEROM-LHEA, Institut de Biologie en Santé, Angers, Université d'Angers, CHU d'Angers, 49933 Angers, France; SCIAM, Institut de Biologie en Santé, Université d'Angers, CHU d'Angers, 49933 Angers, France
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Bodelón OG, Clemente C, Alobera MA, Aguado-Henche S, Escudero ML, Alonso MCG. Osseointegration of TI6Al4V dental implants modified by thermal oxidation in osteoporotic rabbits. Int J Implant Dent 2016; 2:18. [PMID: 27747710 PMCID: PMC5005616 DOI: 10.1186/s40729-016-0051-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 07/07/2016] [Indexed: 02/05/2023] Open
Abstract
Background In this work, the effect of the heat treatment on Ti6Al4V implants and topical administration of growth hormone to address a better osseointegration in osteoporotic patients has been analysed. Methods The osseointegration process of Ti6Al4V implants modified by oxidation treatment at 700 °C for 1 h and the influence of local administration of growth hormone (GH) in osteoporotic female rabbits after 15 and 30 days of implantation have been studied. Bone response was analysed through densitometric and histomorphometric studies. Characterization of the surface was provided by scanning electron microscopy. Results The oxidation treatment promotes the formation of an oxide scale grown on the Ti6Al4V implants that alters the nanoroughness of the surface. Bone mineral density (BMD) increases from 0.347 ± 0.014 (commercial) to 0.383 ± 0.012 g cm−2 (modified), and bone-to-implant contact (BIC) goes from 48.01 ± 14.78 (commercial) to 55.37 ± 15.31 (modified) after 30 days of implantation. Conclusions The oxidation treatment on the Ti6Al4V dental implants enhances the early bone formation at the longest periods of implantation. No significant differences in the BMD and BIC results in healthy and osteoporotic rabbits were revealed with respect to the local administration of GH in the implantation site.
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Affiliation(s)
- Oscar G Bodelón
- Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Celia Clemente
- Department of Human Anatomy and Embryology, School of Medicine, University of Alcalá, Alcalá de Henares, Spain
| | - Miguel Angel Alobera
- Stomatology Department IV, Complutense University of Madrid (UCM), Madrid, Spain
| | - Soledad Aguado-Henche
- Department of Human Anatomy and Embryology, School of Medicine, University of Alcalá, Alcalá de Henares, Spain
| | - María Lorenza Escudero
- Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM), CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain
| | - María Cristina García Alonso
- Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM), CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain.
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Mansur SA, Mieczkowska A, Flatt PR, Bouvard B, Chappard D, Irwin N, Mabilleau G. A new stable GIP-Oxyntomodulin hybrid peptide improved bone strength both at the organ and tissue levels in genetically-inherited type 2 diabetes mellitus. Bone 2016; 87:102-13. [PMID: 27062994 DOI: 10.1016/j.bone.2016.04.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 03/30/2016] [Accepted: 04/04/2016] [Indexed: 12/25/2022]
Abstract
Obesity and type 2 diabetes mellitus (T2DM) progress worldwide with detrimental effects on several physiological systems including bone tissue mainly by affecting bone quality. Several gut hormones analogues have been proven potent in ameliorating bone quality. In the present study, we used the leptin receptor-deficient db/db mice as a model of obesity and severe T2DM to assess the extent of bone quality alterations at the organ and tissue levels. We also examined the beneficial effects of gut hormone therapy in this model by using a new triple agonist ([d-Ala(2)]GIP-Oxm) active at the GIP, GLP-1 and glucagon receptors. As expected, db/db mice presented with dramatic alterations of bone strength at the organ level associated with deterioration of trabecular and cortical microarchitectures and an augmentation in osteoclast numbers. At the tissue level, these animals presented also with alterations of bone strength (reduced hardness, indentation modulus and dissipated energy) with modifications of tissue mineral distribution, collagen glycation and collagen maturity. The use of [d-Ala(2)]GIP-Oxm considerably improved bone strength at the organ level with modest effects on trabecular microarchitecture. At the tissue level, [d-Ala(2)]GIP-Oxm ameliorated bone strength reductions with positive effects on collagen glycation and collagen maturity. This study provides support for including gut hormone analogues as possible new therapeutic strategies for improving bone quality in bone complications associated to T2DM.
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Affiliation(s)
- Sity Aishah Mansur
- Universiti Tun Hussein Onn Malaysia, Johor, Malaysia; School of Biomedical Sciences, University of Ulster, Coleraine, Northern Ireland, United Kingdom
| | - Aleksandra Mieczkowska
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux - LHEA, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, LUNAM Université, 49933 ANGERS Cedex, France
| | - Peter R Flatt
- Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
| | - Beatrice Bouvard
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux - LHEA, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, LUNAM Université, 49933 ANGERS Cedex, France
| | - Daniel Chappard
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux - LHEA, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, LUNAM Université, 49933 ANGERS Cedex, France; SCIAM, Service Commun d'Imagerie et Analyses Microscopiques, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, LUNAM Université, 49933 ANGERS Cedex, France
| | - Nigel Irwin
- Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
| | - Guillaume Mabilleau
- GEROM Groupe Etudes Remodelage Osseux et bioMatériaux - LHEA, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, LUNAM Université, 49933 ANGERS Cedex, France; SCIAM, Service Commun d'Imagerie et Analyses Microscopiques, IRIS-IBS Institut de Biologie en Santé, CHU d'Angers, LUNAM Université, 49933 ANGERS Cedex, France.
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Fan R, Gong H, Zhang R, Gao J, Jia Z, Hu Y. Quantification of Age-Related Tissue-Level Failure Strains of Rat Femoral Cortical Bones Using an Approach Combining Macrocompressive Test and Microfinite Element Analysis. J Biomech Eng 2016; 138:041006. [DOI: 10.1115/1.4032798] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 12/15/2022]
Abstract
Bone mechanical properties vary with age; meanwhile, a close relationship exists among bone mechanical properties at different levels. Therefore, conducting multilevel analyses for bone structures with different ages are necessary to elucidate the effects of aging on bone mechanical properties at different levels. In this study, an approach that combined microfinite element (micro-FE) analysis and macrocompressive test was established to simulate the failure of male rat femoral cortical bone. Micro-FE analyses were primarily performed for rat cortical bones with different ages to simulate their failure processes under compressive load. Tissue-level failure strains in tension and compression of these cortical bones were then back-calculated by fitting the experimental stress–strain curves. Thus, tissue-level failure strains of rat femoral cortical bones with different ages were quantified. The tissue-level failure strain exhibited a biphasic behavior with age: in the period of skeletal maturity (1–7 months of age), the failure strain gradually increased; when the rat exceeded 7 months of age, the failure strain sharply decreased. In the period of skeletal maturity, both the macro- and tissue-levels mechanical properties showed a large promotion. In the period of skeletal aging (9–15 months of age), the tissue-level mechanical properties sharply deteriorated; however, the macromechanical properties only slightly deteriorated. The age-related changes in tissue-level failure strain were revealed through the analysis of male rat femoral cortical bones with different ages, which provided a theoretical basis to understand the relationship between rat cortical bone mechanical properties at macro- and tissue-levels and decrease of bone strength with age.
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Affiliation(s)
- Ruoxun Fan
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
- Department of Engineering Mechanics, Jilin University, Nanling Campus, Changchun 130025, China e-mail:
| | - He Gong
- Professor State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
- Department of Engineering Mechanics, Jilin University, Nanling Campus, Changchun 130025, China e-mail:
| | - Rui Zhang
- Department of Engineering Mechanics, Jilin University, Nanling Campus, Changchun 130025, China
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 10000, China e-mail:
| | - Jiazi Gao
- Department of Engineering Mechanics, Jilin University, Nanling Campus, Changchun 130025, China e-mail:
| | - Zhengbin Jia
- Department of Engineering Mechanics, Jilin University, Nanling Campus, Changchun 130025, China e-mail:
| | - Yanjuan Hu
- School of Mechatronic Engineering, Changchun University of Technology, Changchun 130025, China e-mail:
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Abstract
Progeroid mouse models display phenotypes in multiple organ systems that suggest premature aging and resemble features of natural aging of both mice and humans. The prospect of a significant increase in the global elderly population within the next decades has led to the emergence of "geroscience," which aims at elucidating the molecular mechanisms involved in aging. Progeroid mouse models are frequently used in geroscience as they provide insight into the molecular mechanisms that are involved in the highly complex process of natural aging. This review provides an overview of the most commonly reported nonneoplastic macroscopic and microscopic pathologic findings in progeroid mouse models (eg, osteoporosis, osteoarthritis, degenerative joint disease, intervertebral disc degeneration, kyphosis, sarcopenia, cutaneous atrophy, wound healing, hair loss, alopecia, lymphoid atrophy, cataract, corneal endothelial dystrophy, retinal degenerative diseases, and vascular remodeling). Furthermore, several shortcomings in pathologic analysis and descriptions of these models are discussed. Progeroid mouse models are valuable models for aging, but thorough knowledge of both the mouse strain background and the progeria-related phenotype is required to guide interpretation and translation of the pathology data.
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Affiliation(s)
- L Harkema
- Dutch Molecular Pathology Center, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - S A Youssef
- Dutch Molecular Pathology Center, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - A de Bruin
- Dutch Molecular Pathology Center, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands Department of Pediatrics, Division of Molecular Genetics, University Medical Center Groningen, Groningen, The Netherlands
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Huang CC, Jiang CC, Hsieh CH, Tsai CJ, Chiang H. Local bone quality affects the outcome of prosthetic total knee arthroplasty. J Orthop Res 2016. [PMID: 26222735 DOI: 10.1002/jor.23003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Osteoporosis and osteoarthritis commonly coexist in the elderly. In patients undergoing prosthetic total knee arthroplasty (TKA), the bone quality around the knee joint may affect the safety of prosthetic implantation and consequently satisfaction with the surgical outcome. We recruited 50 postmenopausal women undergoing TKA for primary osteoarthritis; 43 completed the study protocol. The bone quality parameters of the operated knee, including bone mineral density assessed using dual-energy X-ray absorptiometry and microarchitecture variables assessed using micro-computed tomography, were determined. Surgical outcomes were assessed according to immediate (<1 week) postoperative pain quantified using the visual analog scale and knee function quantified using the Knee Injury and Osteoarthritis Outcome Score (KOOS) at 2 and 6 months postoperatively. The influence of bone quality parameters on surgical outcomes was analyzed using simple and multiple regression analyses. Volumetric bone mineral density (R(2) = 0.187-0.234, p < 0.01), the structural model index (R(2) = 0.103-0.181, p < 0.05), and trabecular separation (R(2) = 0.289-0.424, p < 0.05) were significantly associated with postoperative pain and improvement according to the KOOS. In conclusion, local bone quality, including mineral content and microarchitecture, affects the surgical outcome of TKA.
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Affiliation(s)
- Chuan-Ching Huang
- Department of Orthopaedic Surgery, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
| | - Ching-Chuan Jiang
- Department of Orthopaedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Chang-Hsun Hsieh
- Department of Orthopaedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Jung Tsai
- Department of Orthopaedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Hongsen Chiang
- Department of Orthopaedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
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Oksztulska-Kolanek E, Znorko B, Michałowska M, Pawlak K. The Biomechanical Testing for the Assessment of Bone Quality in an Experimental Model of Chronic Kidney Disease. Nephron Clin Pract 2015; 132:51-8. [DOI: 10.1159/000442714] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 10/30/2015] [Indexed: 11/19/2022] Open
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Levy R, Mott RF, Iraqi FA, Gabet Y. Collaborative cross mice in a genetic association study reveal new candidate genes for bone microarchitecture. BMC Genomics 2015; 16:1013. [PMID: 26611327 PMCID: PMC4661944 DOI: 10.1186/s12864-015-2213-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 11/13/2015] [Indexed: 12/26/2022] Open
Abstract
Background The microstructure of trabecular bone is a composite trait governed by a complex interaction of multiple genetic determinants. Identifying these genetic factors should significantly improve our ability to predict of osteoporosis and its associated risks. Genetic mapping using collaborative cross mice (CC), a genetically diverse recombinant inbred mouse reference panel, offers a powerful tool to identify causal loci at a resolution under one mega base-pairs, with a relatively small cohort size. Here, we utilized 31 CC lines (160 mice of both sexes in total) to perform genome-wide haplotype mapping across 77,808 single-nucleotide polymorphisms (SNPs). Haplotype scans were refined by imputation with the catalogue of sequence variation segregating in the CC to suggest potential candidate genes. Trabecular traits were obtained following microtomographic analysis, performed on 10-μm resolution scans of the femoral distal metaphysis. We measured the trabecular bone volume fraction (BV/TV), number (Tb.N), thickness (Tb.Th), and connectivity density (Conn.D). Results Heritability of these traits ranged from 0.6 to 0.7. In addition there was a significant (P < 0.01) sex effect in all traits except Tb.Th. Our haplotype scans yielded six quantitative trait loci (QTL) at 1 % false discovery rate; BV/TV and Tb.Th produced two proximal loci each, on chromosome 2 and 7, respectively, and Tb.N and Conn.D yielded one locus on chromosomes 8 and 14, respectively. We identified candidate genes with previously-reported functions in bone biology, and implicated unexpected genes whose function in bone biology has yet to be assigned. Based on the literature, among the genes that ranked particularly high in our analyses (P < 10-6) and which have a validated causal role in skeletal biology, are Avp, Oxt, B2m (associated with BV/TV), Cnot7 (with Tb.N), Pcsk6, Rgma (with Tb.Th), Rb1, and Cpb2 (with Conn.D). Other candidate genes strongly suggested by our analyses are Sgcz, Fgf20 (associated with Tb.N), and Chd2 (with Tb.Th). Conclusion We have demonstrated for the first time genome-wide significant association between several genetic loci and trabecular microstructural parameters for genes with previously reported experimental observations, as well as proposing a role for new candidate genes with no previously characterized skeletal function. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2213-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Roei Levy
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Richard F Mott
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Fuad A Iraqi
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yankel Gabet
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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50
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Chappard D, Mabilleau G, Moukoko D, Henric N, Steiger V, Le Nay P, Frin JM, De Bodman C. Aluminum and iron can be deposited in the calcified matrix of bone exostoses. J Inorg Biochem 2015; 152:174-9. [DOI: 10.1016/j.jinorgbio.2015.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 09/02/2015] [Accepted: 09/14/2015] [Indexed: 11/26/2022]
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