1
|
Cardinal M, Dessain A, Roels T, Lafont S, Ominsky MS, Devogelaer JP, Chappard D, Mabilleau G, Ammann P, Nyssen-Behets C, Manicourt DH. Sclerostin-Antibody Treatment Decreases Fracture Rates in Axial Skeleton and Improves the Skeletal Phenotype in Growing oim/oim Mice. Calcif Tissue Int 2020; 106:494-508. [PMID: 32025752 DOI: 10.1007/s00223-019-00655-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 12/28/2019] [Indexed: 12/11/2022]
Abstract
In osteogenesis imperfecta (OI), vertebrae brittleness causes thorax deformations and leads to cardiopulmonary failure. As sclerostin-neutralizing antibodies increase bone mass and strength in animal models of osteoporosis, their administration in two murine models of severe OI enhanced the strength of vertebrae in growing female Crtap-/- mice but not in growing male Col1a1Jrt/+ mice. However, these two studies ignored the impact of antibodies on spine growth, fracture rates, and compressive mechanical properties. Here, we conducted a randomized controlled trial in oim/oim mice, an established model of human severe OI type III due to a mutation in Col1a2. Five-week-old female WT and oim/oim mice received either PBS or sclerostin antibody (Scl-Ab) for 9 weeks. Analyses included radiography, histomorphometry, pQCT, microcomputed tomography, and biomechanical testing. Though it did not modify vertebral axial growth, Scl-Ab treatment markedly reduced the fracture prevalence in the pelvis and caudal vertebrae, enhanced osteoblast activity (L4), increased cervico-sacral spine BMD, and improved the lumbosacral spine bone cross-sectional area. Scl-Ab did not impact vertebral height and body size but enhanced the cortical thickness and trabecular bone volume significantly in the two Scl-Ab groups. At lumbar vertebrae and tibial metaphysis, the absolute increase in cortical and trabecular bone mass was higher in Scl-Ab WT than in Scl-Ab oim/oim. The effects on trabecular bone mass were mainly due to changes in trabecular number at vertebrae and in trabecular thickness at metaphyses. Additionally, Scl-Ab did not restore a standard trabecular network, but improved bone compressive ultimate load with more robust effects at vertebrae than at metaphysis. Overall, Scl-Ab treatment may be beneficial for reducing vertebral fractures and spine deformities in patients with severe OI.
Collapse
Affiliation(s)
- Mickaël Cardinal
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 52 Avenue Mounier - B1.52.04, 1200, Brussels, Belgium.
| | - Alicia Dessain
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 52 Avenue Mounier - B1.52.04, 1200, Brussels, Belgium
| | - Thomas Roels
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 52 Avenue Mounier - B1.52.04, 1200, Brussels, Belgium
| | - Sébastien Lafont
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 52 Avenue Mounier - B1.52.04, 1200, Brussels, Belgium
| | - Michael S Ominsky
- Radius Health, Inc. (Formerly at Amgen Inc, Thousand Oaks, CA, USA), Waltham, MA, USA
| | - Jean-Pierre Devogelaer
- Pole of Rheumatology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| | - Daniel Chappard
- GEROM, Groupe d'Etudes sur le Remodelage Osseux et les bioMatériaux, University of Angers, 49933, Angers, France
| | - Guillaume Mabilleau
- GEROM, Groupe d'Etudes sur le Remodelage Osseux et les bioMatériaux, University of Angers, 49933, Angers, France
| | - Patrick Ammann
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospital, Geneva, Switzerland
| | - Catherine Nyssen-Behets
- Pole of Morphology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 52 Avenue Mounier - B1.52.04, 1200, Brussels, Belgium
| | - Daniel H Manicourt
- Pole of Rheumatology, Institut de Recherche Expérimentale et Clinique, UCLouvain, Brussels, Belgium
| |
Collapse
|
2
|
Faber J, Morum T, Jamilian A, Eslami S, Leal S. Infection predictive factors with orthodontic anchorage miniplates. Semin Orthod 2018. [DOI: 10.1053/j.sodo.2018.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
3
|
Lucas K, Behrens BA, Nolte I, Galindo-Zamora V, Betancur S, Almohallami A, Bouguecha A, Mostafa A, Lerch M, Stukenborg-Colsman C, Wefstaedt P. Comparative investigation of bone mineral density using CT and DEXA in a canine femoral model. J Orthop Res 2017; 35:2667-2672. [PMID: 28387962 DOI: 10.1002/jor.23574] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 03/28/2017] [Indexed: 02/04/2023]
Abstract
Bone density measurements using computed tomography (CT) instead of dual-energy X-ray absorptiometry (DEXA) are currently of great interest in human and veterinary medical research as it would be beneficial to use CT scans obtained for other indications also for determining bone density. For Hounsfield units (HU) measured with CT in specific regions of interests (ROIs) in one or several slice/s a correlation with bone mineral density (BMD) measured by DEXA in humans and dogs of between 0.44 and 0.77 is reported in the literature. In the present study, instead certain volumes of interest (VOIs) obtained by CT scan and the corresponding HU to the respective VOIs were compared with the bone mineral density of the corresponding areas measured by DEXA. The aim of the study was to investigate whether this procedure gives more accurate information about bone density of the bones as three-dimensional objects of the respective patient. Correlation between measured HU in the respective VOI and BMD measured with DEXA in the corresponding ROI showed a very good correlation of 0.93. Linear regression with R2 = 0.85 (p = 0.0262) was calculated. Except for VOI5, similar distribution of values and significant differences (p < 0.0001-0.0087) between ROIs/VOIs were detected. Determining HU for assessing bone mineral density in a certain volume provides more accurate results than those previously reported from two-dimensional (2D) CT measurements. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2667-2672, 2017.
Collapse
Affiliation(s)
- Karin Lucas
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, Hannover, 30559, Germany
| | - Bernd-Arno Behrens
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, Hannover, 30559, Germany
| | - Vladimir Galindo-Zamora
- Small Animal Clinic, Faculty of Veterinary Medicine, National University of Colombia, Bogotá, Colombia
| | - Stefanie Betancur
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - Amer Almohallami
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - Anas Bouguecha
- Institute of Forming Technology and Machines, Leibniz University Hannover, Hannover, Germany
| | - Ayman Mostafa
- Faculty of Veterinary Medicine, Department of Surgery, Cairo University, Giza, 12211, Egypt
| | - Matthias Lerch
- Department of Orthopaedic Surgery, Hannover Medical School, Hannover, Germany
| | | | - Patrick Wefstaedt
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, Hannover, 30559, Germany
| |
Collapse
|
4
|
Kammoun R, Behets C, Mansour L, Ghoul-Mazgar S. Mineral features of connective dental hard tissues in hypoplastic amelogenesis imperfecta. Oral Dis 2017; 24:384-392. [PMID: 28771955 DOI: 10.1111/odi.12724] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To explore the mineral features of dentin and cementum in hypoplastic Amelogenesis imperfecta AI teeth. MATERIALS AND METHODS Forty-four (44) teeth cleaned and free of caries were used: 20 control and 24 affected by hypoplastic amelogenesis imperfecta. Thirty-two teeth were studied by pQCT, cut in sections, and analyzed under microradiography, polarized light microscopy, and confocal Raman spectroscopy. Eight teeth were observed under scanning electron microscope. Four teeth were used for an X-ray diffraction. The mineral density data were analyzed statistically with the Mann-Whitney U test, using GraphPad InStat software. RESULTS Both coronal dentin and radicular dentin were less mineralized in AI teeth when compared to control (respectively 6.2% and 6.8%; p < .001). Root dentinal walls were thin and irregular, while the cellular cementum layers were thick, reaching sometimes the cervical region of the tooth. Regular dentinal tubules and sclerotic dentin areas were noticed. Partially tubular or cellular dysplastic dentin and hyper-, normo-, or hypomineralized areas were noticed in the inter-radicular areas of hypoplastic AI teeth. The main mineral component was carbonate hydroxyapatite as explored by Raman spectroscopy and X-ray diffraction. CONCLUSIONS Dentin and cementum in hypoplastic AI teeth are (i) hypomineralized, (ii) constituted of carbonate hydroxyapatite, and (iii) of non-homogenous structure.
Collapse
Affiliation(s)
- R Kammoun
- Laboratory of Histology and Embryology, Laboratory of Dento-Facial, Clinical and Biological Approach (ABCDF), Faculty of Dental Medicine, University of Monastir, Monastir, Tunisia
| | - C Behets
- Pôle de Morphologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | - L Mansour
- Laboratory of Histology and Embryology, Laboratory of Dento-Facial, Clinical and Biological Approach (ABCDF), Faculty of Dental Medicine, University of Monastir, Monastir, Tunisia
| | - S Ghoul-Mazgar
- Laboratory of Histology and Embryology, Laboratory of Dento-Facial, Clinical and Biological Approach (ABCDF), Faculty of Dental Medicine, University of Monastir, Monastir, Tunisia
| |
Collapse
|
5
|
Bone condition of the maxillary zygomatic process prior to orthodontic anchorage plate fixation. J Orofac Orthop 2014; 76:3-13. [DOI: 10.1007/s00056-014-0261-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 04/04/2014] [Indexed: 10/24/2022]
|
6
|
Largura LZ, Argenta MA, Sakima MT, Camargo ES, Guariza-Filho O, Tanaka OM. Bone stress and strain after use of a miniplate for molar protraction and uprighting: A 3-dimensional finite element analysis. Am J Orthod Dentofacial Orthop 2014; 146:198-206. [DOI: 10.1016/j.ajodo.2014.04.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/01/2014] [Accepted: 04/01/2014] [Indexed: 11/25/2022]
|
7
|
Gritsch K, Laroche N, Bonnet JM, Exbrayat P, Morgon L, Rabilloud M, Grosgogeat B. In vivo evaluation of immediately loaded stainless steel and titanium orthodontic screws in a growing bone. PLoS One 2013; 8:e76223. [PMID: 24124540 PMCID: PMC3790705 DOI: 10.1371/journal.pone.0076223] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 08/21/2013] [Indexed: 11/18/2022] Open
Abstract
The present work intends to evaluate the use of immediate loaded orthodontic screws in a growing model, and to study the specific bone response. Thirty-two screws (half of stainless steel and half of titanium) were inserted in the alveolar bone of 8 growing pigs. The devices were immediately loaded with a 100 g orthodontic force. Two loading periods were assessed: 4 and 12 weeks. Both systems of screws were clinically assessed. Histological observations and histomorphometric analysis evaluated the percent of “bone-to-implant contact” and static and dynamic bone parameters in the vicinity of the devices (test zone) and in a bone area located 1.5 cm posterior to the devices (control zone). Both systems exhibit similar responses for the survival rate; 87.5% and 81.3% for stainless steel and titanium respectively (p = 0.64; 4-week period), and 62.5% and 50.0% for stainless steel and titanium respectively (p = 0.09; 12-week period). No significant differences between the devices were found regarding the percent of “bone-to-implant contact” (p = 0.1) or the static and dynamic bone parameters. However, the 5% threshold of “bone-to-implant contact” was obtained after 4 weeks with the stainless steel devices, leading to increased survival rate values. Bone in the vicinity of the miniscrew implants showed evidence of a significant increase in bone trabecular thickness when compared to bone in the control zone (p = 0.05). In our study, it is likely that increased trabecular thickness is a way for low density bone to respond to the stress induced by loading.
Collapse
Affiliation(s)
- Kerstin Gritsch
- Laboratoire des Multimatériaux et Interfaces (UMR CNRS 5615), Faculté d′Odontologie de Lyon, Université de Lyon, Lyon, France
- Hospices Civils de Lyon, Lyon, France
- * E-mail:
| | - Norbert Laroche
- Laboratoire de Biologie Intégrative du Tissu Osseux (INSERM U890), Faculté de Médecine, Université Jean Monnet, Saint-Etienne, France
| | - Jeanne-Marie Bonnet
- Agressions Vasculaires et réponses tissulaires (INSERM ERI22/EA4173), Université de Lyon, Lyon, France
| | | | | | - Muriel Rabilloud
- Hospices Civils de Lyon, Lyon, France
- Laboratoire Biostatistique Santé (UMR CNRS 5558), Université de Lyon, Lyon, France
| | - Brigitte Grosgogeat
- Laboratoire des Multimatériaux et Interfaces (UMR CNRS 5615), Faculté d′Odontologie de Lyon, Université de Lyon, Lyon, France
- Hospices Civils de Lyon, Lyon, France
| |
Collapse
|
8
|
Deprez PML, Nichane MG, Rousseaux P, Devogelaer JP, Chappard D, Lengelé BG, Rezsöhazy R, Nyssen-Behets C. Postnatal growth defect in mice upon persistent Hoxa2 expression in the chondrogenic cell lineage. Differentiation 2011; 83:158-67. [PMID: 22093256 DOI: 10.1016/j.diff.2011.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 09/07/2011] [Accepted: 10/07/2011] [Indexed: 12/18/2022]
Abstract
Hoxa2 is a homeotic transcription factor, which is downregulated once chondrogenic differentiation is initiated. We previously generated a transgenic mouse model, which turns Hoxa2 on in cells expressing Collagen II A1, i.e. in cells entering chondrogenesis. As a consequence, mice display a general embryonic delay of ossification and then a postnatal growth defect. Col2a1-Cre mice were crossed with an inducible β-actin driven Hoxa2 transgene. Spines, vertebrae and limbs were measured and skeletal elements were studied by X-ray, microCT, pQCT, TEM, western-blotting, histomorphometry and immunohistochemistry. Mice expressing Hoxa2 in chondrogenic cells feature a proportionate short stature phenotype with a severe lordosis, which appeared significant from postnatal day 4. Analysis of both cartilage and bone development in affected embryos and mice from birth till P35 did not reveal any major defect in histogenesis, except a reduced number of chondrocytes in the vertebral anlage at E13.5. In conclusion, the sustained expression of Hoxa2 in the chondrocyte lineage is characterized by a proportionate short stature resulting from skeletal growth defect. The indepth analysis of cartilage and bone histogenesis points towards an initial deficit in cell mobilization to enter chondrogenesis.
Collapse
Affiliation(s)
- Pierre Marcel Louis Deprez
- Pôle de Morphologie, Institut de recherche expérimentale et clinique, Université catholique de Louvain, Brussels, Belgium.
| | | | | | | | | | | | | | | |
Collapse
|