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Jiang Z, Qi G, He X, Yu Y, Cao Y, Zhang C, Zou W, Yuan H. Ferroptosis in Osteocytes as a Target for Protection Against Postmenopausal Osteoporosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307388. [PMID: 38233202 DOI: 10.1002/advs.202307388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/18/2023] [Indexed: 01/19/2024]
Abstract
Ferroptosis is a necrotic form of iron-dependent regulatory cell death. Estrogen withdrawal can interfere with iron metabolism, which is responsible for the pathogenesis of postmenopausal osteoporosis (PMOP). Here, it is demonstrated that estrogen withdrawal induces iron accumulation in the skeleton and the ferroptosis of osteocytes, leading to reduced bone mineral density. Furthermore, the facilitatory effect of ferroptosis of osteocytes is verified in the occurrence and development of postmenopausal osteoporosis is associated with over activated osteoclastogenesis using a direct osteocyte/osteoclast coculture system and glutathione peroxidase 4 (GPX4) knockout ovariectomized mice. In addition, the nuclear factor erythroid derived 2-related factor-2 (Nrf2) signaling pathway is confirmed to be a crucial factor in the ferroptosis of osteocytic cells. Nrf2 regulates the expression of nuclear factor kappa-B ligand (RANKL) by regulating the DNA methylation level of the RANKL promoter mediated by DNA methyltransferase 3a (Dnmt3a), which is as an important mechanism in osteocytic ferroptosis-mediated osteoclastogenesis. Taken together, this data suggests that osteocytic ferroptosis is involved in PMOP and can be targeted to tune bone homeostasis.
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Affiliation(s)
- Zengxin Jiang
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Guobin Qi
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Xuecheng He
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yifan Yu
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yuting Cao
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Changqing Zhang
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Weiguo Zou
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Sciences, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Hengfeng Yuan
- Department of Orthopaedics, Shanghai Jiaotong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China
- Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
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Slavin BV, Nayak VV, Boczar D, Bergamo ET, Slavin BR, Yarholar LM, Torroni A, Coelho PG, Witek L. Bone Tissue Engineering (BTE) of the Craniofacial Skeleton, Part II: Translational Potential of 3D-Printed Scaffolds for Defect Repair. J Craniofac Surg 2024; 35:261-267. [PMID: 37622526 PMCID: PMC10836599 DOI: 10.1097/scs.0000000000009635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/06/2023] [Indexed: 08/26/2023] Open
Abstract
Computer-aided design/computer-aided manufacturing and 3-dimensional (3D) printing techniques have revolutionized the approach to bone tissue engineering for the repair of craniomaxillofacial skeletal defects. Ample research has been performed to gain a fundamental understanding of the optimal 3D-printed scaffold design and composition to facilitate appropriate bone formation and healing. Benchtop and preclinical, small animal model testing of 3D-printed bioactive ceramic scaffolds augmented with pharmacological/biological agents have yielded promising results given their potential combined osteogenic and osteoinductive capacity. However, other factors must be evaluated before newly developed constructs may be considered analogous alternatives to the "gold standard" autologous graft for defect repair. More specifically, the 3D-printed bioactive ceramic scaffold's long-term safety profile, biocompatibility, and resorption kinetics must be studied. The ultimate goal is to successfully regenerate bone that is comparable in volume, density, histologic composition, and mechanical strength to that of native bone. In vivo studies of these newly developed bone tissue engineering in translational animal models continue to make strides toward addressing regulatory and clinically relevant topics. These include the use of skeletally immature animal models to address the challenges posed by craniomaxillofacial defect repair in pediatric patients. This manuscript reviews the most recent preclinical animal studies seeking to assess 3D-printed ceramic scaffolds for improved repair of critical-sized craniofacial bony defects.
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Affiliation(s)
| | - Vasudev V Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL
| | - Daniel Boczar
- Department of Surgery, University of Washington, Seattle, WA
| | - Edmara Tp Bergamo
- Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, Bauru, SP, Brazil
- Biomaterials Division, NYU College of Dentistry, New York, NY
| | - Benjamin R Slavin
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Lauren M Yarholar
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Andrea Torroni
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York
| | - Paulo G Coelho
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL
| | - Lukasz Witek
- Biomaterials Division, NYU College of Dentistry, New York, NY
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY
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Matos FG, Stremel ACA, Lipinski LC, Cirelli JA, Dos Santos FA. Dental implants in large animal models with experimental systemic diseases: A systematic review. Lab Anim 2023; 57:489-503. [PMID: 37021606 DOI: 10.1177/00236772221124972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
This systematic review aims to identify and discuss the most used methodologies in pre-clinical studies for the evaluation of the implementation of dental implants in systemically compromised pigs and sheep. This study provides support and guidance for future research, as well as for the prevention of unnecessary animal wastage and sacrifice. Preferred Reporting for Systematic Reviews and Meta-Analyses (PRISMA) was used as a guideline; electronic searches were performed in PubMed, Scopus, Scielo, Web of Science, Embase, Science Direct, Brazilian Bibliography of Dentistry, Latin American and Caribbean Literature in Health Sciences, Directory of Open Access Journals, Database of Abstracts of Reviews of Effects, and gray literature until January 2022 (PROSPERO/CRD42021270119). Sixty-eight articles were chosen from the 2439 results. Most studies were conducted in pigs, mainly the Göttinger and Domesticus breeds. Healthy animals with implants installed in the jaws were predominant among the pig studies. Of the studies evaluating the effect of systemic diseases on osseointegration, 42% were performed in osteoporotic sheep, 32% in diabetic sheep, and 26% in diabetic pigs. Osteoporosis was primarily induced by bilateral ovariectomy and mainly assessed by X-ray densitometry. Diabetes was induced predominantly by intravenous streptozotocin and was confirmed by blood glucose analysis. Histological and histomorphometric analyses were the most frequently employed in the evaluation of osseointegration. The animal models presented unique methodologies for each species in the studies that evaluated dental implants in the context of systemic diseases. Understanding the most commonly used techniques will help methodological choices and the performance of future studies in implantology.
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Affiliation(s)
| | | | | | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, State University of São Paulo (Unesp), Brazil
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Camargo WA, Hoekstra JW, Jansen JA, van den Beucken JJJP. Influence of bisphosphonate treatment on bone substitute performance in osteoporotic conditions. Clin Implant Dent Relat Res 2023. [PMID: 37121910 DOI: 10.1111/cid.13203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 02/02/2023] [Accepted: 03/11/2023] [Indexed: 05/02/2023]
Abstract
OBJECTIVE Considering the elevated number of osteoporotic patients in need of bone graft procedures, we here evaluated the effect of alendronate (ALN) treatment on the regeneration of bone defects in osteoporotic rats. Bone formation was histologically and histomorphometrically assessed in rat femoral condyle bone defects filled with bone graft (Bio-Oss®) or left empty. METHODS Male Wistar rats were induced osteoporotic through orchidectomy (ORX) and SHAM-operated. The animals were divided into three groups: osteoporotic (ORX), osteoporotic treated with ALN (ORX + ALN) and healthy (SHAM). Six weeks after ORX or SHAM surgeries, bone defects were created bilaterally in femoral condyles; one defect was filled with Bio-Oss® and the other one left empty. Bone regeneration within the defects was analyzed by histology and histomorphometry after 4 and 12 weeks. RESULTS Histological samples showed new bone surrounding Bio-Oss® particles from week 4 onward in all three groups. At week 12, the data further showed that ALN treatment of osteoporotic animals enhanced bone formation to a 10-fold increase compared to non-treated osteoporotic control. Bio-Oss® filling of the defects promoted bone formation at both implantation periods compared to empty controls. CONCLUSION Our histological and histomorphometric results demonstrate that the enteral administration of alendronate under osteoporotic bone conditions leverages bone defect regeneration to a level comparable to that in healthy bone. Additionally, Bio-Oss® is an effective bone substitute, increasing bone formation, and acting as an osteoconductive scaffold guiding bone growth in both healthy and osteoporotic bone conditions. SIGNIFICANCE Based on the results of this study, enteral use of ALN mitigates adverse effects of an osteoporotic condition on bone defect regeneration.
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Affiliation(s)
- Winston Adam Camargo
- Dentistry - Regenerative Biomaterials (309), Radboudumc, Nijmegen, The Netherlands
| | - Jan Willem Hoekstra
- Dentistry - Regenerative Biomaterials (309), Radboudumc, Nijmegen, The Netherlands
| | - John A Jansen
- Dentistry - Regenerative Biomaterials (309), Radboudumc, Nijmegen, The Netherlands
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Butylina M, Föger-Samwald U, Gelles K, Pietschmann P, Sipos W. Challenges in establishing animal models for studying osteoimmunology of hypoparathyroidism. Front Vet Sci 2023; 10:1163903. [PMID: 37180074 PMCID: PMC10169642 DOI: 10.3389/fvets.2023.1163903] [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] [Received: 02/11/2023] [Accepted: 03/30/2023] [Indexed: 05/15/2023] Open
Abstract
Hypoparathyroidism is a relatively rare human and veterinary disease characterized by deficient or absent production of parathyroid hormone (PTH). PTH is known as a classical regulator of calcium and phosphorus homeostasis. Nevertheless, the hormone also appears to modulate immune functions. For example, increased CD4:CD8 T-cell ratios and elevated interleukin (IL)-6 and IL-17A levels were observed in patients with hyperparathyroidism, whereas gene expression of tumor necrosis factor-α (TNF-α) and granulocyte macrophage-colony stimulating factor (GM-CSF) was decreased in patients with chronic postsurgical hypoparathyroidism. Various immune cell populations are affected differently. So, there is a need for validated animal models for the further characterization of this disease for identifying targeted immune-modulatory therapies. In addition to genetically modified mouse models of hypoparathyroidism, there are surgical rodent models. Parathyroidectomy (PTX) can be well performed in rats-for pharmacological and associated osteoimmunological research and bone mechanical studies, a large animal model could be preferable, however. A major drawback for successfully performing total PTX in large animal species (pigs and sheep) is the presence of accessory glands, thus demanding to develop new approaches for real-time detection of all parathyroid tissues.
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Affiliation(s)
- Maria Butylina
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Ursula Föger-Samwald
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Katharina Gelles
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Peter Pietschmann
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Sipos
- Clinical Department for Farm Animals, University of Veterinary Medicine Vienna, Vienna, Austria
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Regenerative Potential of Hydroxyapatite-Based Ceramic Biomaterial on Mandibular Cortical Bone: An In Vivo Study. Biomedicines 2023; 11:biomedicines11030877. [PMID: 36979856 PMCID: PMC10045626 DOI: 10.3390/biomedicines11030877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/19/2023] [Accepted: 03/08/2023] [Indexed: 03/15/2023] Open
Abstract
Reconstruction of bone defects and maintaining the continuity of the mandible is still a challenge in the maxillofacial surgery. Nowadays, the biomedical research within bone defect treatment is focussed on the therapy of using innovative biomaterials with specific characteristics consisting of the body’s own substances. Hydroxyapatite ceramic scaffolds have fully acceptable phase compositions, microstructures and compressive strengths for their use in regenerative medicine. The innovative hydroxyapatite ceramics used by us were prepared using the tape-casting method, which allows variation in the shape of samples after packing hydroxyapatite paste to 3D-printed plastic form. The purpose of our qualitative study was to evaluate the regenerative potential of the innovative ceramic biomaterial prepared using this method in the therapy of the cortical bone of the lower jaw in four mature pigs. The mandible bone defects were evaluated after different periods of time (after 3, 4, 5 and 6 months) and compared with the control sample (healthy cortical bone from the opposite side of the mandible). The results of the morphological, clinical and radiological investigation and hardness examination confirmed the positive regenerative potential of ceramic implants after treatment of the mandible bone defects in the porcine mandible model.
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Zamai RS, Corrêa MG, Ribeiro FV, Cirano FR, Casati MZ, Messora MR, Pimentel SP. Does resveratrol favor peri-implant bone repair in rats with ovariectomy-induced osteoporosis? Gene expression, counter-torque and micro-CT analysis. Braz Oral Res 2023; 37:e003. [PMID: 36700588 DOI: 10.1590/1807-3107bor-2023.vol37.0003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 11/11/2020] [Indexed: 01/27/2023] Open
Abstract
This study investigated the influence of resveratrol on peri-implant repair and its effects on bone-related markers in ovariectomy-induced osteoporosis in rats. Animals were divided into: OVX+PLAC (n = 10): ovariectomized animals treated with placebo; OVX+RESV (n = 10): OVX treated with resveratrol; OVX+PLAC+ZOL (n = 10): OVX treated with PLAC and zoledronate; OVX+RESV+ZOL (n = 10): OVX treated with RESV and ZOL; and SHOVX+PLAC (n = 10): sham ovariectomy treated with PLAC. RESV and PLAC were administrated after ovariectomy and ZOL after six weeks after OVX, until the end of experiment. One implant was inserted in each tibiae of animals 18 weeks after ovariectomy. After 4 weeks, one implant was removed for counter-torque, and peri-implant tissue was collected for mRNA quantification of several osteogenic markers by PCR. The other tibia was submitted to micro-computed tomography analysis. Reduced counter-torque values, bone-implant contact (BIC) and bone volume fraction (BV/TV), and higher bone porosity (BP) were detected in OVX+PLAC group when compared to SHOVX+PLAC (p < 0.05). OVX+RESV rats presented lower BIC, BV/TV, and trabecular number (Tb.N), and augmented BP and trabecular spacing (Tb.Sp) when compared to SHOVX+PLAC (p < 0.05). Higher Tb.N and connectivity density (Conn.Dn) and reduced Tb.Sp were observed in OVX rats treated with ZOL, independently of RESV, when compared to OVX+PLAC and OVX+RESV groups (p < 0.05), whereas the combination ZOL+RESV promoted lower BP when compared to OVT+PLAC and OVX+RESV (p < 0.05). Gene expression was not influenced by RESV (p > 0.05), whereas ZOL promoted up-regulation of BMP-2 (p<0.05). RESV did not improve peri-implant bone repair in rats with ovariectomy-induced osteoporosis.
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Affiliation(s)
- Rodrigo Soler Zamai
- Universidade Paulista - UNIP, School of Dentistry , Dental Research Division , São Paulo , SP , Brazil
| | - Monica Grazieli Corrêa
- Universidade Paulista - UNIP, School of Dentistry , Dental Research Division , São Paulo , SP , Brazil
| | - Fernanda Vieira Ribeiro
- Universidade Paulista - UNIP, School of Dentistry , Dental Research Division , São Paulo , SP , Brazil
| | - Fabiano Ribeiro Cirano
- Universidade Paulista - UNIP, School of Dentistry , Dental Research Division , São Paulo , SP , Brazil
| | - Marcio Zaffalon Casati
- Universidade Paulista - UNIP, School of Dentistry , Dental Research Division , São Paulo , SP , Brazil
| | - Michel Reis Messora
- Universidade de São Paulo - USP, Ribeirão Preto School of Dentistry , Department of Surgery and Bucco-Maxillofacial Traumatology and Periodontology , Ribeirão Preto , SP , Brazil
| | - Suzana Peres Pimentel
- Universidade de São Paulo - USP, Ribeirão Preto School of Dentistry , Department of Surgery and Bucco-Maxillofacial Traumatology and Periodontology , Ribeirão Preto , SP , Brazil
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Nik Md Noordin Kahar NNF, Ahmad N, Mariatti M, Yahaya BH, Sulaiman AR, Abdul Hamid ZA. A review on bioceramics scaffolds for bone defect in different types of animal models: HA and β -TCP. Biomed Phys Eng Express 2022; 8. [PMID: 35921834 DOI: 10.1088/2057-1976/ac867f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 08/03/2022] [Indexed: 11/12/2022]
Abstract
Increased life expectancy has led to an increase in the use of bone substitutes in numerous nations, with over two million bone-grafting surgeries performed worldwide each year. A bone defect can be caused by trauma, infections, and tissue resections which can self-heal due to the osteoconductive nature of the native extracellular matrix components. However, natural self-healing is time-consuming, and new bone regeneration is slow, especially for large bone defects. It also remains a clinical challenge for surgeons to have a suitable bone substitute. To date, there are numerous potential treatments for bone grafting, including gold-standard autografts, allograft implantation, xenografts, or bone graft substitutes. Tricalcium phosphate (TCP) and hydroxyapatite (HA) are the most extensively used and studied bone substitutes due to their similar chemical composition to bone. The scaffolds should be testedin vivoandin vitrousing suitable animal models to ensure that the biomaterials work effectively as implants. Hence, this article aims to familiarize readers with the most frequently used animal models for biomaterials testing and highlight the available literature for in vivo studies using small and large animal models. This review summarizes the bio ceramic materials, particularly HA and β-TCP scaffolds, for bone defects in small and large animal models. Besides, the design considerations for the pre-clinical animal model selection for bone defect implants are emphasized and presented.
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Affiliation(s)
- Nik Nur Farisha Nik Md Noordin Kahar
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia - Kampus Kejuruteraan Seri Ampangan, Transkrian, Nibong Tebal, Seberang Perai Selatan, Nibong Tebal, Pulau Pinang, 14300, MALAYSIA
| | - Nurazreena Ahmad
- Biomaterials Niche Group, School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia - Kampus Kejuruteraan Seri Ampangan, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300 Penang, Malaysia, Nibong Tebal, Pulau Pinang, 14300, MALAYSIA
| | - M Mariatti
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia - Kampus Kejuruteraan Seri Ampangan, Engineering Campus, Universiti Sains Malaysia, 14300 NibongTebal,, Nibong Tebal, Pulau Pinang, 14300, MALAYSIA
| | - Badrul Hisham Yahaya
- Cluster of Regenerative Medicine, Universiti Sains Malaysia Institut Perubatan dan Pengigian Termaju, Bertam, Kepala Batas, Pulau Pinang, 13200, MALAYSIA
| | - Abdul Razak Sulaiman
- Department of Orthopaedics, School of Medical Science, Universiti Sains Malaysia - Kampus Kesihatan, 16150, Kota Bharu, Kelantan, MALAYSIA, Kubang Kerian, Kelantan, 16150, MALAYSIA
| | - Zuratul Ain Abdul Hamid
- School of Materials & Mineral Resources Engineering, Universiti Sains Malayisa, Universiti Sains Malaysia - Engineering Campus Seri Ampangan, Universiti Sains Malaysia, Engineering Campus, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, 14300, MALAYSIA
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Kern C, Pauli A, Rohnke M. Determination of Sr 2+ mobility in viscous bovine bone marrow by cryo-time-of-flight secondary ion mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2022; 36:e9300. [PMID: 35312121 DOI: 10.1002/rcm.9300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 06/14/2023]
Abstract
RATIONALE In osteoporosis research, strontium ions (Sr2+ ) have emerged as promising therapeutic agent in modified bone cements for better fracture healing. Modeling of Sr2+ dispersion in bone could be used as a predictive tool for the evaluation of functionalized biomaterials in future. Therefore, determination of experimental parameters for Sr2+ transport in bone is essential. In this study, we focus on the determination of Sr2+ diffusion in viscous bovine bone marrow by time-of-flight secondary ion mass spectrometry (ToF-SIMS). METHODS For this comparatively fast diffusion (FD) experiment, a specific experimental protocol of ToF-SIMS depth profiling under cryogenic conditions was developed. The validity of our experimental approach is proven by a time-dependent experimental series. Furthermore, 2D and 3D mass spectrometric imaging analysis was used to study Sr2+ surface and bulk distribution within bovine bone marrow. RESULTS Detailed 2D and 3D mass spectrometric imaging analysis revealed that Sr2+ diffusion is slower in bone marrow areas with high intensity of lipid and fatty acid signals than in areas with less lipid content. The Sr2+ transport within this passive model can be described by Fickian diffusion. Average diffusion coefficients of Sr2+ in bovine bone marrow were obtained from diffusion profiles in FD areas (Dbovine,FD = [2.09 ± 2.39]·10-9 cm2 s-1 ), slow diffusion areas (Dbovine,SD = [1.52 ± 1.80]·10-10 cm2 s-1 ), and total area diffusion (Dbovine,TA = [1.94 ± 2.40]·10-9 cm2 s-1 ). CONCLUSIONS We were able to show that cryo-ToF-SIMS is a useful tool for the characterization of rapid diffusion in water-containing highly viscous media. To the best of our knowledge, this is the first reported experimental approach for the investigation of the distribution of low concentrated therapeutic agents in bone marrow. Overall, our results provide important insights about Sr2+ diffusion in bovine bone marrow.
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Affiliation(s)
- Christine Kern
- Institute of Physical Chemistry, Justus Liebig University Giessen, Giessen, Germany
| | - Anna Pauli
- Institute of Physical Chemistry, Justus Liebig University Giessen, Giessen, Germany
| | - Marcus Rohnke
- Institute of Physical Chemistry, Justus Liebig University Giessen, Giessen, Germany
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Nguyen DK, Laroche N, Vanden‐Bossche A, Linossier M, Thomas M, Peyroche S, Normand M, Bertache Y, Thomas T, Marotte H, Vico L, Lafage‐Proust M, Rousseau M. Protective effect on bone of nacre supplementation in ovariectomized rats. JBMR Plus 2022; 6:e10655. [PMID: 36111203 PMCID: PMC9464996 DOI: 10.1002/jbm4.10655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 11/23/2022] Open
Abstract
Nacre has emerged as a beneficial natural product for bone cells and tissues, but its effect was only studied by gavage in the ovariectomized mouse model. We sought to assess the antiosteoporotic effect of nacre through a nutritional supplementation in the ovariectomized rat model. Sixteen‐week‐old female Wistar rats were either Sham‐operated or bilateral ovariectomized (OVX) and then fed with standard diet (Sham and OVX groups) or standard diet supplemented with either 0.25% CaCO3 or nacre (OVX CaCO3 and OVX Nacre group, respectively) for 28 days (n = 10/group). The bone microarchitecture was assessed at appendicular and axial bones by micro‐computed tomography (μCT). Histomorphometric analysis was performed to determine cellular and dynamic bone parameters. Bone metabolism was also evaluated by biochemical markers and gene expression levels. Nacre‐based diet prevented the OVX‐induced bone loss better than that of the CaCO3 supplement, given the significant changes in trabecular bone volume fraction (BV/TV) both at the femoral distal metaphysis (difference, 35%; p = 0.004) and at the second lumbar spine (difference, 11%; p = 0.01). Trabecular osteoclast surfaces (Oc.S/BS) were also 1.5‐fold lower at the tibial proximal metaphysis in OVX Nacre group compared with OVX CaCO3 group (p = 0.02). By principal component analysis (PCA), OVX Nacre group formed a cluster away from OVX group and with a trend closest to Sham group. These data were consistent with biological measurements demonstrating a positive profile related to nacre supplementation, which blunted an increase in serum CTX level and enhanced serum P1NP secretion 14 days post‐OVX compared with CaCO3 supplementation. Bmp2 mRNA expression in OVX Nacre group was +1.76‐fold (p = 0.004) and +1.30‐fold (p = 0.20) compared with OVX and OVX CaCO3 groups, respectively. We conclude that supplementation with nacre could effectively limit bone loss induced by estrogen deficiency just after OVX in rats by modulating the negative imbalance of bone turnover. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Dung Kim Nguyen
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Norbert Laroche
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Arnaud Vanden‐Bossche
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Marie‐Thérèse Linossier
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Mireille Thomas
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Sylvie Peyroche
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Myriam Normand
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Yacine Bertache
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Thierry Thomas
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
- Department of Rheumatology Hôpital Nord, CHU Saint‐Etienne Saint‐Etienne France
| | - Hubert Marotte
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
- Department of Rheumatology Hôpital Nord, CHU Saint‐Etienne Saint‐Etienne France
| | - Laurence Vico
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
| | - Marie‐Hélène Lafage‐Proust
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
- Department of Rheumatology Hôpital Nord, CHU Saint‐Etienne Saint‐Etienne France
| | - Marthe Rousseau
- U1059 SAINBIOSE, INSERM, Univ Jean Monnet, Univ Lyon, Mines Saint‐Étienne Saint‐Étienne France
- University of Lyon, INSA‐Lyon, CNRS, MATEIS (UMR 5510) Villeurbanne France
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11
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Paschalis EP, Gamsjaeger S, Burr DB. Bone quality in an ovariectomized monkey animal model treated with two doses of teriparatide for either 18 months, or 12 months followed by withdrawal for 6 months. Bone 2022; 158:116366. [PMID: 35167989 DOI: 10.1016/j.bone.2022.116366] [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: 12/14/2021] [Revised: 01/27/2022] [Accepted: 02/08/2022] [Indexed: 11/28/2022]
Abstract
Previous studies of ovariectomized (OVX) monkeys, treated with recombinant human parathyroid hormone (PTH) (1-34) at 1 or 5 μg/kg/day for 18 months or for 12 months followed by 6 months withdrawal from treatment, displayed significant changes in geometry, histomorphometry, and bone quality, but without strict tissue age criteria, of the midshaft humerus. Since bone quality significantly depends on tissue age among other factors, the aim of the present study was to establish the bone-turnover independent effects of two doses of PTH, as well as the effects of treatment withdrawal on bone quality by measuring bone material composition at precisely known tissue ages ranging from osteoid, to mineralized tissue older than 373 days. Raman microspectroscopic analysis of bone tissue from the mid-shaft humerus of OVX monkeys demonstrated that the clinically relevant dose of PTH administered for 18 months reverses the effects of ovariectomy on bone quality when compared against SHAM. Both doses investigated in this study restore the mineralization regulation mechanisms to SHAM levels. The study also showed that the beneficial effects induced by 12 months of clinically relevant PTH therapy were sustained after six months of therapy withdrawal.
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Affiliation(s)
- E P Paschalis
- Ludwig Boltzmann Institute for Osteology, at the Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria.
| | - S Gamsjaeger
- Ludwig Boltzmann Institute for Osteology, at the Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria
| | - D B Burr
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Biomedical Engineering, Indiana University-Purdue University, Indianapolis (IUPUI), Indianapolis, IN 46202, USA
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12
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Liu X, Chen M, Liu Q, Li G, Yang P, Zhang G. LncRNA PTCSC3 is upregulated in osteoporosis and negatively regulates osteoblast apoptosis. BMC Med Genomics 2022; 15:57. [PMID: 35296322 PMCID: PMC8925152 DOI: 10.1186/s12920-022-01182-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND It is known that long non-coding RNA (lncRNA) PTCSC3 is involved in thyroid cancer and glioma, but its function in osteoporosis is unknown. The aim of our study was to investigate the role of lncRNA PTCSC3 in osteoporosis. METHODS A total of 80 patients with osteoporosis (4 clinical stages) and four corresponding groups of healthy controls were enrolled. Plasma PTCSC3 levels in the 80 osteoporosis patients and 80 healthy volunteers were measured using RT-qPCR. The diagnostic potential of plasma PTCSC3 for osteoporosis was evaluated by ROC curve analysis with healthy volunteers as the true negative cases and corresponding osteoporosis patients as the true positive cases. RESULTS PTCSC3 was upregulated in osteoporosis patients compared with healthy controls. PTCSC3 levels increased with osteoporosis stages increasing, but not with healthy controls aging. PTCSC3 overexpression separated each stage of osteoporosis from corresponding controls. PTCSC3 overexpression promoted while PTCSC3 silencing inhibited osteoblast apoptosis. However, PTCSC3 overexpression and silencing showed no significant effect on osteoclast apoptosis. LncRNA PTCSC3 was upregulated in osteoporosis and negatively regulated osteoblast apoptosis. CONCLUSION LncRNA PTCSC3 may serve as a potential therapeutic target for osteoporosis.
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Affiliation(s)
- Xingchao Liu
- Orthopedics Department, Hebei Yanda Hospital, Yanjiao Development Zone, Sanhe City, Langfang City, 065201, Hebei Province, People's Republic of China
| | - Mingliang Chen
- Orthopedics Department, Hebei Yanda Hospital, Yanjiao Development Zone, Sanhe City, Langfang City, 065201, Hebei Province, People's Republic of China
| | - Qinghe Liu
- Orthopedics Department, Beijing Chao-Yang Hospital, Capital Medical University, No 8 Gongtinan Road, Beijing, 100020, People's Republic of China.
| | - Gang Li
- Orthopedics Department, Hebei Yanda Hospital, Yanjiao Development Zone, Sanhe City, Langfang City, 065201, Hebei Province, People's Republic of China
| | - Pei Yang
- Orthopedics Department, Hebei Yanda Hospital, Yanjiao Development Zone, Sanhe City, Langfang City, 065201, Hebei Province, People's Republic of China
| | - Guodong Zhang
- Orthopedics Department, Hebei Yanda Hospital, Yanjiao Development Zone, Sanhe City, Langfang City, 065201, Hebei Province, People's Republic of China
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13
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Lorenzett MP, Cecco BS, Bianchi MV, Cruz RA, Linhares DC, Guedes RM, Driemeier D, Pavarini SP. Osteoporosis in swine. PESQUISA VETERINÁRIA BRASILEIRA 2022. [DOI: 10.1590/1678-5150-pvb-7068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
ABSTRACT: Forty-six pigs presented muscle weakness, hind limb paresis and paralysis, weight loss, lateral recumbency, and death in a clinical course of 7 to 10 days. Two pigs were necropsied and exhibited bone fragility, bone callus formation, and multiple fractures in the limbs, ribs, and vertebrae. Microscopically, there was a diffuse and marked decrease in thickness and number of trabeculae. These were disconnected, with a “free-floating” appearance, while the cortex of the long bones was thinned, with an increase of the cortical porosity by enlargement of Haversian canals and endosteal erosion and decreased osteoblastic activity. Flame atomic absorption spectrometry in liver samples revealed significant zinc overload (>2300ppm) and copper deficiency (<33.1ppm). In this communication, we present the first pathologic description of an outbreak of osteoporosis in pigs, and we also provide a brief review of metabolic bone diseases in pigs.
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14
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Montoya‐Sanhueza G, Bennett NC, Oosthuizen MK, Dengler‐Crish CM, Chinsamy A. Bone remodeling in the longest living rodent, the naked mole-rat: Interelement variation and the effects of reproduction. J Anat 2021; 239:81-100. [PMID: 33554344 PMCID: PMC8197955 DOI: 10.1111/joa.13404] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/09/2021] [Accepted: 01/14/2021] [Indexed: 12/14/2022] Open
Abstract
The pattern of bone remodeling of one of the most peculiar mammals in the world, the naked mole-rat (NMR), was assessed. NMRs are known for their long lifespans among rodents and for having low metabolic rates. We assessed long-term in vivo bone labeling of subordinate individuals, as well as the patterns of bone resorption and bone remodeling in a large sample including reproductive and non-reproductive individuals (n = 70). Over 268 undecalcified thin cross-sections from the midshaft of humerus, ulna, femur and tibia were analyzed with confocal fluorescence and polarized light microscopy. Fluorochrome analysis revealed low osteogenesis, scarce bone resorption and infrequent formation of secondary osteons (Haversian systems) (i.e., slow bone turnover), thus most likely reflecting the low metabolic rates of this species. Secondary osteons occurred regardless of reproductive status. However, considerable differences in the degree of bone remodeling were found between breeders and non-breeders. Pre-reproductive stages (subordinates) exhibited quite stable skeletal homeostasis and bone structure, although the attainment of sexual maturity and beginning of reproductive cycles in female breeders triggered a series of anabolic and catabolic processes that up-regulate bone turnover, most likely associated with the increased metabolic rates of reproduction. Furthermore, bone remodeling was more frequently found in stylopodial elements compared to zeugopodial elements. Despite the limited bone remodeling observed in NMRs, the variation in the pattern of skeletal homeostasis (interelement variation) reported here represents an important aspect to understand the skeletal dynamics of a small mammal with low metabolic rates. Given the relevance of the remodeling process among mammals, this study also permitted the comparison of such process with the well-documented histomorphology of extinct therapsids (i.e., mammalian precursors), thus evidencing that bone remodeling and its endocortical compartmentalization represent ancestral features among the lineage that gave rise to mammals. It is concluded that other factors associated with development (and not uniquely related to biomechanical loading) can also have an important role in the development of bone remodeling.
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Affiliation(s)
- Germán Montoya‐Sanhueza
- Department of Biological SciencesUniversity of Cape TownCape TownSouth Africa
- Department of ZoologyFaculty of ScienceUniversity of South BohemiaČeské BudějoviceCzech Republic
| | - Nigel C. Bennett
- Department of Zoology and EntomologyMammal Research InstituteUniversity of PretoriaPretoriaSouth Africa
| | - Maria K. Oosthuizen
- Department of Zoology and EntomologyMammal Research InstituteUniversity of PretoriaPretoriaSouth Africa
| | | | - Anusuya Chinsamy
- Department of Biological SciencesUniversity of Cape TownCape TownSouth Africa
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15
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Zhang Z, Gan Y, Guo Y, Lu X, Li X. Animal models of vertical bone augmentation (Review). Exp Ther Med 2021; 22:919. [PMID: 34335880 PMCID: PMC8290405 DOI: 10.3892/etm.2021.10351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 06/10/2021] [Indexed: 11/28/2022] Open
Abstract
Vertical bone augmentation is an important challenge in dental implantology. Existing vertical bone augmentation techniques, along with bone grafting materials, have achieved certain clinical progress but continue to have numerous limitations. In order to evaluate the possibility of using biomaterials to develop bone substitutes, medical devices and/or new bone grafting techniques for vertical bone augmentation, it is essential to establish clinically relevant animal models to investigate their biocompatibility, mechanical properties, applicability and safety. The present review discusses recent animal experiments related to vertical bone augmentation. In addition, surgical protocols for establishing relevant preclinical models with various animal species were reviewed. The present study aims to provide guidance for selecting experimental animal models of vertical bone augmentation.
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Affiliation(s)
- Zepeng Zhang
- Department of Oral and Maxillofacial Surgery, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, P.R. China
| | - Yaxin Gan
- Department of Oral and Maxillofacial Surgery, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, P.R. China
| | - Yarong Guo
- Department of Oral and Maxillofacial Surgery, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, P.R. China
| | - Xuguang Lu
- Department of Oral and Maxillofacial Surgery, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, P.R. China
| | - Xianqi Li
- Department of Oral and Maxillofacial Surgery, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, P.R. China.,Department of Oral and Maxillofacial Surgery, School of Dentistry, Matsumoto Dental University, Shiojiri, Nagano 399-0781, Japan
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16
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Vielreicher M, Bozec A, Schett G, Friedrich O. Murine Metatarsus Bone and Joint Collagen-I Fiber Morphologies and Networks Studied With SHG Multiphoton Imaging. Front Bioeng Biotechnol 2021; 9:608383. [PMID: 34178952 PMCID: PMC8226188 DOI: 10.3389/fbioe.2021.608383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic inflammatory disease of bones and joints (e.g., rheumatoid arthritis, gout, etc.), but also acute bone injury and healing, or degenerative resorptive processes inducing osteoporosis, are associated with structural remodeling that ultimately have impact on function. For instance, bone stability is predominantly orchestrated by the structural arrangement of extracellular matrix fibrillar networks, i.e., collagen-I, -IV, elastin, and other proteins. These components may undergo distinct network density and orientation alterations that may be causative for decreased toughness, resilience and load bearing capacity or even increased brittleness. Diagnostic approaches are usually confined to coarse imaging modalities of X-ray or computer tomography that only provide limited optical resolution and lack specificity to visualize the fibrillary collagen network. However, studying collagen structure at the microscopic scale is of considerable interest to understand the mechanisms of tissue pathologies. Multiphoton Second Harmonic Generation (SHG) microscopy, is able to visualize the sterical topology of the collagen-I fibrillar network in 3D, in a minimally invasive and label-free manner. Penetration depths exceed those of conventional visible light imaging and can be further optimized through employing decalcification or optical clearing processing ex vivo. The goal of this proof-of-concept study was to use SHG and two-photon excited fluorescence (2-PEF) imaging to mainly characterize the fibrillary collagen organization within ex vivo decalcified normal mouse metatarsus bone and joint. The results show that the technique resolved the fibrillar collagen network of complete bones and joints with almost no artifacts and enabled to study the complex collagen-I networks with various fiber types (straight, crimped) and network arrangements of mature and woven bone with high degree of detail. Our imaging approach enabled to identify cavities within both cortical and trabecular bone architecture as well as interfaces with sharply changing fiber morphology and network structure both within bone, in tendon and ligament and within joint areas. These possibilities are highly advantageous since the technology can easily be applied to animal models, e.g., of rheumatoid arthritis to study structural effects of chronic joint inflammation, and to many others and to compare to the structure of human bone.
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Affiliation(s)
- Martin Vielreicher
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3 - Rheumatology and Immunology, University Clinic, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3 - Rheumatology and Immunology, University Clinic, Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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17
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Xu W, Ni C, Wang Y, Zheng G, Zhang J, Xu Y. Age-related trabecular bone loss is associated with a decline in serum Galectin-1 level. BMC Musculoskelet Disord 2021; 22:394. [PMID: 33906620 PMCID: PMC8080405 DOI: 10.1186/s12891-021-04272-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/16/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Senile osteoporosis with age-related bone loss is diagnosed depending on radiographic changes of bone and bone mineral density (BMD) measurement. However, radiographic alterations are usually signs of medium-late stage osteoporosis. Therefore, biomarkers have been proposed as indicators of bone loss. In the current study, Galectin-1 (Gal-1) showed age-related decline in mice serum. The role of Gal-1 in osteoporosis has not been investigated so far. Hence, the current study illustrated the relationship of serum Gal-1 level with bone loss. METHODS We employed 6- and 18-month-old mice to establish an animal model of age-related trabecular bone loss, whose bone density and microstructure were investigated by micro-CT. ELISA was used to measure the levels of Gal-1 in serum. The correlation analysis was performed to illustrate the relationship between serum Gal-1 levels and trabecular bone loss. In addition, immunohistochemistry was used to investigate the abundance of Gal-1 in bone marrow of mice. ELISA and western blot were performed to measure the secretion ability and protein expression of Gal-1 in bone marrow stromal cells (BMSC), hematopoietic stem cells (HSC) and myeloid progenitor (MP) respectively. Flow cytometry was used to measure BMSC number in bone marrow. Finally, male volunteers with age-related BMD decrease were recruited and the relationship between serum Gal-1 and BMD was analyzed. RESULTS Gal-1 showed age-related decline in mice serum. Serum Gal-1 was positively associated with BV/TV of femur, tibia and L1 vertebrae in mice. BMSC secreted more Gal-1 compared with HSC and MP. BMSC number in bone marrow was significantly lower in aged mice compared with young mice. Significant attenuation of Gal-1 protein expression was observed in BMSC and HSC from aged mice compared with young mice. Further, we found a decline in serum Gal-1 levels in men with age-related BMD decrease. There was positive correlation between BMD and serum Gal-1 levels in these men. CONCLUSIONS Age-related trabecular bone loss is associated with a decline in serum Gal-1 level in mice and men. Our study suggested Gal-1 had great potential to be a biomarker for discovering BMSC senescence, diagnosing early osteoporosis and monitoring trabecular bone loss.
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Affiliation(s)
- Wenting Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.,Department of Orthopaedics, Shanghai Jiangong Hospital, Shanghai, 200083, China
| | - Cheng Ni
- Department of Orthopaedics, Shanghai Jiangong Hospital, Shanghai, 200083, China
| | - Yuxuan Wang
- Department of Orthopaedics, Shanghai Jiangong Hospital, Shanghai, 200083, China
| | - Guoqing Zheng
- Department of Orthopaedics, Shanghai Jiangong Hospital, Shanghai, 200083, China
| | - Jinshan Zhang
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Youjia Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.
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18
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Gamsjaeger S, Eriksen EF, Paschalis EP. Effect of hormone replacement therapy on bone formation quality and mineralization regulation mechanisms in early postmenopausal women. Bone Rep 2021; 14:101055. [PMID: 33850974 PMCID: PMC8022851 DOI: 10.1016/j.bonr.2021.101055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 10/26/2022] Open
Abstract
Post-menopausal osteoporosis is characterized by a negative imbalance between bone formation and bone resorption resulting in a net bone loss, increasing the risk of fracture. One of the earliest interventions to protect against this was hormonal replacement therapy (HRT). Bone strength depends on both the amount and quality of bone, the latter including compositional / material and structural properties. Bone compositional / material properties are greatly dependent on both patient-, and tissue-age. Raman spectroscopy is an analytical tool ideally suited for the determination of bone compositional / material properties as a function of tissue age as it is capable of analyzing areas ~1 × 1 μm2 in tetracycline labeled bone forming areas. Using such analysis of humeri from an ovariectomized primate animal model, we reported that loss of estrogen results in alteration in the mineralization regulation mechanisms by osteoid organic matrix attributes at actively forming bone surfaces. In the present work, we used Raman microspectroscopic techniques to compare osteoid and youngest mineralized tissue composition, as well as relationships between osteoid organic matrix quality and quality attributes of the earliest mineralized tissue in paired iliac crest biopsies obtained from early postmenopausal women before and after two years of HRT therapy. Significant correlations between osteoid proteoglycans, sulfated proteoglycans, pyridinoline, and earliest mineralized tissue mineral content were observed, suggesting that in addition to changes in bone turnover rates, HRT affects the osteoid composition, mineralization regulation mechanisms, and potentially fibrillogenesis.
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Affiliation(s)
- S Gamsjaeger
- Ludwig Boltzmann Institute for Osteology, at the Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria
| | - E F Eriksen
- Department of Clinical Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Institute of Clinical Medicine, Oslo University, Oslo, Norway
| | - E P Paschalis
- Ludwig Boltzmann Institute for Osteology, at the Hanusch Hospital of OEGK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria
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19
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Dubrovsky AM, Nyman JS, Uppuganti S, Chmiel KJ, Kimmel DB, Lane NE. Bone Strength/Bone Mass Discrepancy in Glucocorticoid-Treated Adult Mice. JBMR Plus 2020; 5:e10443. [PMID: 33778319 PMCID: PMC7990143 DOI: 10.1002/jbm4.10443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/16/2020] [Accepted: 11/22/2020] [Indexed: 11/12/2022] Open
Abstract
Glucocorticoids increase bone fragility in patients in a manner that is underestimated by bone mass measurement. This study aimed to determine if the adult mouse could model this bone strength/bone mass discrepancy. Forty‐two 13‐week‐old BALB/cJ mice were randomized into vehicle and glucocorticoid groups, implanted with vehicle or 6‐methylprednisolone pellets, and necropsied after 60 and 120 days. Bone strength and bone mass/microarchitecture were assessed at the right central femur (CF; cortical‐bone–rich) and sixth lumbar vertebral body (LVB6; trabecular‐bone–rich). Bound water (BW) of the whole right femur was analyzed by proton‐nuclear magnetic resonance (1H‐NMR) relaxometry. Data were analyzed by two‐factor ANOVA with time (day 60 and day 120) and treatment (vehicle and glucocorticoid) as main effects for all data. Significant interactions were further analyzed with a Tukey's post hoc test. Most bone strength measures in the CF were lower in the glucocorticoid group, regardless of the duration of treatment, with no time × treatment interaction. However, bone mass measures in the CF showed a significant time × treatment interaction (p = 0.0001). Bone strength measures in LVB6 showed a time × treatment interaction (p < 0.02) such that LVB6 strength was lower after 120 days of glucocorticoids compared with 120 days of vehicle treatment. Whole‐femur–BW was lower with both glucocorticoid treatment (p = 0.0001) and time (p < 0.02), with a significant time × treatment interaction (p = 0.005). Glucocorticoid treatment of male BALB/cJ mice resulted in the lowering of bone strength in both cortical and trabecular bone that either appeared earlier or was greater than the treatment‐related changes in bone mass/microarchitecture. The adult mouse may be a good model for investigating the bone strength/mass discrepancy observed in glucocorticoid‐treated patients. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Alanna M Dubrovsky
- Center for Musculoskeletal Health University of California at Davis Medical Center Sacramento CA USA
| | - Jeffrey S Nyman
- Department of Orthopaedic Surgery Vanderbilt University Medical Center Nashville TN USA
| | - Sasidhar Uppuganti
- Department of Orthopaedic Surgery Vanderbilt University Medical Center Nashville TN USA
| | - Kenneth J Chmiel
- Center for Musculoskeletal Health University of California at Davis Medical Center Sacramento CA USA
| | - Donald B Kimmel
- Department of Physiological Sciences University of Florida Gainesville FL USA
| | - Nancy E Lane
- Center for Musculoskeletal Health University of California at Davis Medical Center Sacramento CA USA
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20
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Lee SR, Jeon H, Kwon JE, Suh H, Kim BH, Yun MK, Lim YJ, Kang SC. Anti-osteoporotic effects of Salvia miltiorrhiza Bunge EtOH extract both in ovariectomized and naturally menopausal mouse models. JOURNAL OF ETHNOPHARMACOLOGY 2020; 258:112874. [PMID: 32311485 DOI: 10.1016/j.jep.2020.112874] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 03/16/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvia miltiorrhiza is a traditional oriental medicine widely used for preventing and treating disorders of the liver, menstrual, and blood circulation systems. Osteoporosis, loss of bone with age and/or estrogen deficiency, is an important causal factor of fracture. S. miltiorrhiza extract has been used to alleviate dysmenorrhea and painful osteoarthritis. AIM OF THE STUDY This study was performed to investigate the anti-osteoporosis activity of the Salvia miltiorrhiza ethanol extract (SME) in osteoporosis-prone conditions: ovariectomized (OVX) and naturally menopaused (NM) ICR mice. MATERIALS AND METHODS Anti-osteoporotic potentials of SME (50-200 mg/kg) were evaluated based on bone mineral density using microCT analysis, biochemical parameters, and changes in the gene expressions involved in bone resorption. RESULTS SME ameliorated the loss of trabecular bone both in OVX and NM mice. SME was effective in correcting aberrant levels of RANKL, osteocalcin, and BALP, which are critically involved in bone resorption. In addition, SME suppressed the expression of TRAF6 and NFATc1, which play a role in osteoclast differentiation. CONCLUSIONS SME suppressed the loss of trabecular bone via suppressing bone resorption and osteoclast differentiation both in OVX and NM mice. SME is likely to be developed as a therapeutic agent for osteoporosis.
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Affiliation(s)
- Sung Ryul Lee
- Department of Convergence Biomedical Science, Cardiovascular and Metabolic Disease Center, College of Medicine, Inje University, Busan, 47392, Republic of Korea.
| | - Hyelin Jeon
- Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
| | - Jeong Eun Kwon
- Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
| | - Heeju Suh
- Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
| | | | - Min-Kyu Yun
- R&D Center, SK Bioland Co, Ltd, Ansan, 5407, Republic of Korea.
| | - Ye Ji Lim
- Cosmax Bio R&D Center, Cosmax Bio Inc., Seongnam, 13486, Republic of Korea.
| | - Se Chan Kang
- Department of Oriental Medicine Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
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21
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de Oliveira PGFP, Bonfante EA, Bergamo ETP, de Souza SLS, Riella L, Torroni A, Benalcazar Jalkh EB, Witek L, Lopez CD, Zambuzzi WF, Coelho PG. Obesity/Metabolic Syndrome and Diabetes Mellitus on Peri-implantitis. Trends Endocrinol Metab 2020; 31:596-610. [PMID: 32591106 DOI: 10.1016/j.tem.2020.05.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/08/2020] [Accepted: 05/26/2020] [Indexed: 12/27/2022]
Abstract
Literature has reported that up to 50% of dental implants may be affected by peri-implantitis, a bacteria-induced chronic inflammatory process, which promotes osteoclast-mediated bone resorption and inhibits bone formation, leading to progressive bone loss around implants. Current evidence points toward an increased risk for the development of peri-implantitis in both obesity/metabolic syndrome (MetS) and diabetes mellitus (DM) conditions relative to the healthy population. Currently, there is no effective treatment for peri-implantitis and the 50% prevalence in MetS and DM, along with its predicted increase in the worldwide population, presents a major concern in implant dentistry as hyperglycemic conditions are associated with bone-healing impairment; this may be through dysfunction of osteocalcin-induced glucose metabolism. The MetS/DM proinflammatory systemic condition and altered immune/microbiome response affect both catabolic and anabolic events of bone-healing that include increased osteoclastogenesis and compromised osteoblast activity, which could be explained by the dysfunction of insulin receptor that led to activation of signals related with osteoblast differentiation. Furthermore, chronic hyperglycemia along with associated micro- and macro-vascular ailments leads to delayed/impaired wound healing due to activation of pathways that are particularly important in initiating events linked to inflammation, oxidative stress, and cell apoptosis; this may be through deactivation of AKT/PKB protein, which possesses a pivotal role in drive survival and eNOS signaling. This review presents an overview of the local and systemic mechanisms synergistically affecting bone-healing impairment in MetS/DM individuals, as well as a rationale for hierarchical animal model selection, in an effort to characterize peri-implantitis disease and treatment.
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Affiliation(s)
- Paula Gabriela Faciola Pessôa de Oliveira
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY, USA; Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil; Department of Periodontology, School of Dentistry, University Center of State of Para, Belem, PA, Brazil
| | - Estevam A Bonfante
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Edmara T P Bergamo
- Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Sérgio Luis Scombatti de Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Leonardo Riella
- Division of Nephrology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrea Torroni
- Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health School of Medicine, New York, NY, USA
| | - Ernesto B Benalcazar Jalkh
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY, USA; Department of Prosthodontics and Periodontology, Bauru School of Dentistry, University of Sao Paulo, Bauru, SP, Brazil
| | - Lukasz Witek
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY, USA; Department of Biomedical Engineering, NYU Tandon School of Engineering, New York University, Brooklyn, NY, USA
| | - Christopher D Lopez
- Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine Baltimore, MD, USA
| | - Willian Fernando Zambuzzi
- Department of Chemical and Biological Sciences, Bioscience Institute (IBB), UNESP - São Paulo State University, Botucatu, São Paulo, Brazil
| | - Paulo G Coelho
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY, USA; Hansjörg Wyss Department of Plastic Surgery, NYU Langone Health School of Medicine, New York, NY, USA; Department of Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, Brooklyn, NY, USA.
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22
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Shojaa M, Von Stengel S, Schoene D, Kohl M, Barone G, Bragonzoni L, Dallolio L, Marini S, Murphy MH, Stephenson A, Mänty M, Julin M, Risto T, Kemmler W. Effect of Exercise Training on Bone Mineral Density in Post-menopausal Women: A Systematic Review and Meta-Analysis of Intervention Studies. Front Physiol 2020; 11:652. [PMID: 32655410 PMCID: PMC7325605 DOI: 10.3389/fphys.2020.00652] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/22/2020] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a major health problem in post-menopausal women (PMW). Exercise training is considered a cost-effective strategy to prevent osteoporosis in middle aged-older people. The purpose of this study is to summarize the effect of exercise on BMD among PMW. A comprehensive search of electronic databases was conducted through PubMed, Scopus, Web of Science, Cochrane, Science Direct, Eric, ProQuest, and Primo. BMD changes (standardized mean differences: SMD) of the lumbar spine (LS) femoral neck (FN) and/or total hip were considered as outcome measures. After subgroup categorization, statistical methods were used to combine data and compare subgroups. Seventy-five studies were included. The pooled number of participants was 5,300 (intervention group: n = 2,901, control group: n = 2,399). The pooled estimate of random effect analysis was SMD = 0.37, 95%-CI: 0.25–0.50, SMD = 0.33, 95%-CI: 0.23–0.43, and SMD = 0.40, 95%-CI: 0.28–0.51 for LS, FN, and total Hip-BMD, respectively. In the present meta-analysis, there was a significant (p < 0.001), but rather low effect (SMD = 0.33–0.40) of exercise on BMD at LS and proximal femur. A large variation among the single study findings was observed, with highly effective studies but also studies that trigger significant negative results. These findings can be largely attributed to differences among the exercise protocols of the studies. Findings suggest that the true effect of exercise on BMD is diluted by a considerable amount of studies with inadequate exercise protocols.
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Affiliation(s)
- Mahdieh Shojaa
- Institute of Medical Physics, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Simon Von Stengel
- Institute of Medical Physics, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Daniel Schoene
- Institute of Medical Physics, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias Kohl
- Department of Medical and Life Sciences, Institute of Precision Medicine, Furtwangen University, Furtwangen im Schwarzwald, Germany
| | - Giuseppe Barone
- Department for Life Quality Studies, University of Bologna, Bologna, Italy
| | - Laura Bragonzoni
- Department for Life Quality Studies, University of Bologna, Bologna, Italy
| | - Laura Dallolio
- Department of Biomedical and Neuromotor Science, University of Bologna, Bologna, Italy
| | - Sofia Marini
- Department for Life Quality Studies, University of Bologna, Bologna, Italy
| | - Marie H Murphy
- School of Sport, Faculty of Life and Health Sciences, Ulster University, Coleraine, United Kingdom
| | - Aoife Stephenson
- School of Sport, Faculty of Life and Health Sciences, Ulster University, Coleraine, United Kingdom
| | - Minna Mänty
- Department of Public Health, University of Helsinki, Helsinki, Finland.,Department of Strategy and Research, Vantaa, Finland
| | - Mikko Julin
- Department of Physiotherapy, Laurea University of Applied Sciences, Espoo, Finland
| | - Tapani Risto
- Department of Physiotherapy, Laurea University of Applied Sciences, Espoo, Finland
| | - Wolfgang Kemmler
- Institute of Medical Physics, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
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23
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Animal Surgery and Care of Animals. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00060-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Pacicca DM, Brown T, Watkins D, Kover K, Yan Y, Prideaux M, Bonewald L. Elevated glucose acts directly on osteocytes to increase sclerostin expression in diabetes. Sci Rep 2019; 9:17353. [PMID: 31757981 PMCID: PMC6874765 DOI: 10.1038/s41598-019-52224-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 10/10/2019] [Indexed: 12/28/2022] Open
Abstract
Bone quality in diabetic patients is compromised, leading to weaker bones and increased fracture risk. However, the mechanism by which this occurs in diabetic bone remains to be fully elucidated. We hypothesized that elevated glucose and glucose variation would affect the function of osteocytes, essential regulators of bone homeostasis and quality. To first test this hypothesis, we used the IDG-SW3 osteocyte-like cell line to examine the effects of glucose levels on osteocyte function and viability in vitro. We confirmed our in vitro findings using the in vivo streptozotocin-induced (STZ) diabetic rat model and ex-vivo cultured osteocytes from these rats. IDG-SW3 cells cultured under high glucose conditions displayed significantly increased Sost mRNA(100-fold) and sclerostin protein, a negative regulator of bone formation(5000-fold), compared to cells in control media. mRNA expression of osteoblast markers such as Osx, Ocn and Col1a1 was unaffected by glucose. Factors associated with osteoclast activation were affected by glucose, with Rankl being upregulated by low glucose. Opg was also transiently upregulated by high glucose in mature IDG-SW3 cells. Induction of diabetes in Sprague-Dawley rats via a single dose of STZ (70 mg/kg) resulted in elevated maximum glucose and increased variability compared to control animals (670/796 vs. 102/142 mg/dL). This was accompanied by increased Sost/sclerostin expression in the osteocytes of these animals. These results show that glucose levels directly regulate osteocyte function through sclerostin expression and suggest a potential mechanism for the negative impact of diabetes on bone quality.
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Affiliation(s)
- Donna M Pacicca
- Children's Mercy Hospital, Kansas City, Missouri, USA.
- University of Missouri-Kansas City School of Dentistry, Kansas City, Missouri, USA.
| | - Tammy Brown
- Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Dara Watkins
- Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Karen Kover
- Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Yun Yan
- Children's Mercy Hospital, Kansas City, Missouri, USA
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25
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Schafrum Macedo A, Cezaretti Feitosa C, Yoiti Kitamura Kawamoto F, Vinicius Tertuliano Marinho P, dos Santos Dal‐Bó Í, Fiuza Monteiro B, Prado L, Bregadioli T, Antonio Covino Diamante G, Ricardo Auada Ferrigno C. Animal modeling in bone research-Should we follow the White Rabbit? Animal Model Exp Med 2019; 2:162-168. [PMID: 31773091 PMCID: PMC6762042 DOI: 10.1002/ame2.12083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 01/30/2023] Open
Abstract
Animal models are live subjects applied to translational research. They provide insights into human diseases and enhance biomedical knowledge. Livestock production has favored the pace of human social development over millennia. Today's society is more aware of animal welfare than past generations. The general public has marked objections to animal research and many species are falling into disuse. The search for an ideal methodology to replace animal use is on, but animal modeling still holds great importance to human health. Bone research, in particular, has unmet requirements that in vitro technologies cannot yet fully address. In that sense, standardizing novel models remains necessary and rabbits are gaining in popularity as potential bone models. Our aim here is to provide a broad overview of animal modeling and its ethical implications, followed by a narrower focus on bone research and the role rabbits are playing in the current scenario.
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Affiliation(s)
- Aline Schafrum Macedo
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Caroline Cezaretti Feitosa
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Fernando Yoiti Kitamura Kawamoto
- Department of Veterinary SurgerySchool of Agricultural and Veterinarian SciencesSão Paulo State UniversityUNESPJaboticabalSPBrazil
| | - Paulo Vinicius Tertuliano Marinho
- Department of Veterinary SurgeryFederal Institute of Education, Science, and Technology of Southern Minas GeraisIFSULDEMINASMuzambinhoMGBrazil
| | - Ísis dos Santos Dal‐Bó
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Bianca Fiuza Monteiro
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Leonardo Prado
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Thales Bregadioli
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Gabriel Antonio Covino Diamante
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
| | - Cassio Ricardo Auada Ferrigno
- Department of Veterinary SurgerySchool of Veterinary Medicine and Animal SciencesUniversity of São Paulo, USPSão PauloSPBrazil
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26
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Jeong HM, Kim DJ. Bone Diseases in Patients with Chronic Liver Disease. Int J Mol Sci 2019; 20:E4270. [PMID: 31480433 PMCID: PMC6747370 DOI: 10.3390/ijms20174270] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/25/2019] [Accepted: 08/28/2019] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is a frequently observed complication in patients with chronic liver disease, particularly liver cirrhosis and cholestatic liver diseases. In addition, osteoporosis is critical in patients receiving a liver transplant. Nevertheless, few studies have evaluated bone diseases in patients with more frequently observed chronic liver disease, such as chronic viral hepatitis, nonalcoholic fatty liver disease and alcoholic liver disease. Osteoporosis is a disease caused by an imbalance in the activities of osteoblasts and osteoclasts. Over the last few decades, many advances have improved our knowledge of the pathogenesis of osteoporosis. Importantly, activated immune cells affect the progression of osteoporosis, and chronic inflammation may exert an additional effect on the existing pathophysiology of osteoporosis. The microbiota of the intestinal tract may also affect the progression of bone loss in patients with chronic liver disease. Recently, studies regarding the effects of chronic inflammation on dysbiosis in bone diseases have been conducted. However, mechanisms underlying osteoporosis in patients with chronic liver disease are complex and precise mechanisms remain unknown. The following special considerations in patients with chronic liver disease are reviewed: bone diseases in patients who underwent a liver transplant, the association between chronic hepatitis B virus infection treatment and bone diseases, the association between sarcopenia and bone diseases in patients with chronic liver disease, and the association between chronic liver disease and avascular necrosis of the hip. Few guidelines are currently available for the management of low bone mineral density or bone diseases in patients with chronic liver disease. Due to increased life expectancy and therapeutic advances in chronic liver disease, the importance of managing osteoporosis and other bone diseases in patients with chronic liver disease is expected to increase. Consequently, specific guidelines need to be established in the near future.
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Affiliation(s)
- Hae Min Jeong
- Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Gangwon-do 24253, Korea
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon, Gangwon-do 24253, Korea
| | - Dong Joon Kim
- Institute for Liver and Digestive Diseases, Hallym University, Chuncheon, Gangwon-do 24253, Korea.
- Department of Internal Medicine, Hallym University College of Medicine, Seoul 05355, Korea.
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27
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Wang X, Liang T, Zhu Y, Qiu J, Qiu X, Lian C, Gao B, Peng Y, Liang A, Zhou H, Yang X, Liao Z, Li Y, Xu C, Su P, Huang D. Melatonin prevents bone destruction in mice with retinoic acid-induced osteoporosis. Mol Med 2019; 25:43. [PMID: 31462213 PMCID: PMC6714316 DOI: 10.1186/s10020-019-0107-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 07/24/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The protective effect of melatonin against bone metabolism imbalance in osteoporosis (OP) induced by drugs such as retinoic acid (RA) is unclear. The aim of this study was to explore the role of melatonin in bone destruction based on a mouse model. METHODS RA-induced OP model mice were established. To assess the effect of melatonin on these mice, micro-CT was used to characterize the trabecular structure of normal mice and those treated with RA (model), RA + low-dose melatonin (Mlt-L), RA + high-dose melatonin (Mlt-H), and RA + alendronate sodium (positive control). The shape of the trabecular bone, the length and diameter of the femoral head and the height and diameter of vertebra(L1) of each group were also measured and the number of osteoclasts was determined by Tartrate-resistant acid phosphatase (TRACP) staining. Meanwhile, the expression of alkaline phosphatase (ALP) was evaluated by immunohistochemistry assays. The differences between groups in terms of liver and kidney oxidation-related indexes and serum and urinary indicators related to bone metabolism were also analyzed. Furthermore, qRT-PCR and western blotting were used to evaluate the effect of melatonin on osteogenic and osteoclastic differentiation in MC3T3-E1 and RAW264.7 cells, respectively. RESULTS RA induction led to a decrease in the amount and density of trabecular bone, a decrease in the length and diameter of the femur and height, diameter of the vertebra (L1), a decrease in bone mass and density and the expression of ALP, and an increase in the number of osteoclasts. Melatonin treatment alleviated these effects induced by RA, increasing the amount of trabecular bone in OP mice, improving the microstructure of the femur and vertebra(L1) and increasing bone mass bone density and the expression of ALP, as well as decreasing the number of osteoclasts. Additionally, blood and urinary bone metabolism-related indicators showed that melatonin promoted bone formation and inhibited bone resorption. Determination of oxidant and antioxidant biomarkers in the livers and kidneys of the mice revealed that melatonin promoted the antioxidant level and suppressed the level of oxidant molecules in these organs. In vitro, RA promoted osteoclasts and inhibit osteogenesis by increasing oxidative stress levels in the RAW264.7 and MC3T3-E1 cells, but melatonin reversed this effect. Melatonin may, therefore, play a role in the ERK/SMAD and NF-κB pathways. CONCLUSIONS Melatonin can alleviate bone loss in RA-induced OP model mice, repair the trabecular microstructure, and promote bone formation. These effects may be related to reducing oxidation levels in vivo and vitro through the ERK/SMAD and NF-κB pathways.
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Affiliation(s)
- Xudong Wang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Tongzhou Liang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Yuanxin Zhu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Jincheng Qiu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Xianjian Qiu
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Chengjie Lian
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Bo Gao
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Yan Peng
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Anjing Liang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China
| | - Hang Zhou
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Xiaoming Yang
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Zhiheng Liao
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Yongyong Li
- Research Centre for Translational Medicine, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Caixia Xu
- Research Centre for Translational Medicine, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Peiqiang Su
- Department of Orthopedics, the First Affiliated Hospital of Sun Yat-sen University, #58 Zhongshan Road II, Guangzhou, 510080, Guangdong, China.
| | - Dongsheng Huang
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, #107 West Yan Jiang Road, Guangzhou, 510120, Guangdong, China.
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28
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Permuy M, López-Peña M, Muñoz F, González-Cantalapiedra A. Rabbit as model for osteoporosis research. J Bone Miner Metab 2019; 37:573-583. [PMID: 31087186 DOI: 10.1007/s00774-019-01007-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/20/2019] [Indexed: 10/26/2022]
Abstract
Osteoporosis is a major public health problem affecting more than 200 million people worldwide. The use of different animal models, for the study of its pathophysiology and treatments, is important being actually the ovariectomized rat the most widely used; although this model has several problems due its small size, lack of true closure of epiphyseal plate and bone differences with humans. This review is aimed at summarizing the most common methods published for osteoporosis induction in rabbits as model for human disease with their advantages and disadvantages. The paper shows the advantages of the use of this specie compared with the rat. All the techniques seemed to achieve the osteoporotic condition, but the one which obtained the most consistent bone mineral reduction in less time was the combination of surgery and corticoid treatment. The conclusion of the review was that rabbits are promising as a model of osteoporosis research because of their size, haversian remodelling and closure of epiphyseal plate, which solve some of the problems of the rat model. There are different techniques in the literature used to achieve the osteoporotic condition with diverse results, but there is a lack of consensus as to the best one.
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Affiliation(s)
- María Permuy
- Departamento de Anatomía, Producción Animal e Ciencias Clínicas Veterinarias, Universidade De Santiago de Compostela, Campus Universitario s/n, 27002, Lugo, Spain.
| | - Mónica López-Peña
- Departamento de Anatomía, Producción Animal e Ciencias Clínicas Veterinarias, Universidade De Santiago de Compostela, Campus Universitario s/n, 27002, Lugo, Spain
| | - Fernando Muñoz
- Departamento de Anatomía, Producción Animal e Ciencias Clínicas Veterinarias, Universidade De Santiago de Compostela, Campus Universitario s/n, 27002, Lugo, Spain
| | - Antonio González-Cantalapiedra
- Departamento de Anatomía, Producción Animal e Ciencias Clínicas Veterinarias, Universidade De Santiago de Compostela, Campus Universitario s/n, 27002, Lugo, Spain
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29
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Paschalis EP, Gamsjaeger S, Condon K, Klaushofer K, Burr D. Estrogen depletion alters mineralization regulation mechanisms in an ovariectomized monkey animal model. Bone 2019; 120:279-284. [PMID: 30414509 DOI: 10.1016/j.bone.2018.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 11/05/2018] [Accepted: 11/06/2018] [Indexed: 12/14/2022]
Abstract
Ovariectomized animal models have been extensively used in osteoporosis research due to the resulting loss of bone mass. The purpose of the present study was to test the hypothesis that estrogen depletion alters mineralization regulation mechanisms in an ovariectomized monkey animal model. To achieve this we used Raman microspectroscopy to analyze humeri from monkeys that were either SHAM-operated or ovariectomized (N = 10 for each group). Measurements were made as a function of tissue age and cortical surface (periosteal, osteonal, endosteal) based on the presence of calcein fluorescent double labels. In the present work we focused on osteoid seams (defined as a surface with evident calcein labels, 1 μm distance away from the mineralizing front, and for which the Raman spectra showed the presence of organic matrix but not mineral), as well as the youngest mineralized tissue between the second fluorescent label and the mineralizing front, 1 μm inwards from the front with the phosphate mineral peak evident in the Raman spectra (TA1). The spectroscopically determined parameters of interest were the relative glycosaminoglycan (GAG) and pyridinoline (Pyd) contents in the osteoid, and the mineral content in TA1. At all three cortical surfaces, significant correlations were evident in the SHAM-operated animals between osteoid GAG (negative) and Pyd content, and mineral content, unlike the OVX animals. These results suggest that in addition to the well-established effects on turnover rates and bone mass, estrogen depletion alters the regulation of mineralization by GAGs and Pyd.
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Affiliation(s)
- E P Paschalis
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria.
| | - S Gamsjaeger
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria
| | - K Condon
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Biomedical Engineering, Indiana University-Purdue University, Indianapolis (IUPUI), Indianapolis, IN 46202, USA
| | - K Klaushofer
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria
| | - D Burr
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Biomedical Engineering, Indiana University-Purdue University, Indianapolis (IUPUI), Indianapolis, IN 46202, USA
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30
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Kaflak A, Moskalewski S, Kolodziejski W. The solid-state proton NMR study of bone using a dipolar filter: apatite hydroxyl contentversusanimal age. RSC Adv 2019; 9:16909-16918. [PMID: 35516370 PMCID: PMC9064436 DOI: 10.1039/c9ra01902b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/13/2019] [Indexed: 12/24/2022] Open
Abstract
The hydroxyl content of bone apatite mineral has been measured using proton solid-state NMR performed with a multiple-pulse dipolar filter under slow magic angle spinning (MAS). This new method succeeded in resolving and relatively enhancing the main hydroxyl peak at ca. 0 ppm from whole bone, making it amenable to rigorous quantitative analysis. The proposed methodology, involving line fitting, the measurement of the apatite concentration in the studied material and adequate calibration, was proved to be convenient and suitable for monitoring bone mineral hydroxylation in different species and over the lifetime of the animal. It was found that the hydroxyl content in the cranial bone mineral of pig and rats remained in the 5–10% range, with reference to stoichiometric hydroxyapatite. In rats, the hydroxyl content showed a non-monotonic increase with age, which was governed by biological processes rather than by chemical, thermodynamically driven apatite maturation. Mineral hydroxylation in whole bone can be accurately studied using proton MAS NMR with a multiple-pulse dipolar filter.![]()
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Affiliation(s)
- Agnieszka Kaflak
- Medical University of Warsaw
- Faculty of Pharmacy
- Department of Analytical Chemistry and Biomaterials
- Warsaw 02-097
- Poland
| | - Stanisław Moskalewski
- Medical University of Warsaw
- Department of Histology and Embryology
- Warsaw 02-004
- Poland
| | - Waclaw Kolodziejski
- Medical University of Warsaw
- Faculty of Pharmacy
- Department of Analytical Chemistry and Biomaterials
- Warsaw 02-097
- Poland
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31
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Owen R, Reilly GC. In vitro Models of Bone Remodelling and Associated Disorders. Front Bioeng Biotechnol 2018; 6:134. [PMID: 30364287 PMCID: PMC6193121 DOI: 10.3389/fbioe.2018.00134] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/07/2018] [Indexed: 01/02/2023] Open
Abstract
Disruption of bone remodelling by diseases such as osteoporosis results in an imbalance between bone formation by osteoblasts and resorption by osteoclasts. Research into these metabolic bone disorders is primarily performed in vivo; however, in the last decade there has been increased interest in generating in vitro models that can reduce or replace our reliance on animal testing. With recent advances in biomaterials and tissue engineering the feasibility of laboratory-based alternatives is growing; however, to date there are no established in vitro models of bone remodelling. In vivo, remodelling is performed by organised packets of osteoblasts and osteoclasts called bone multicellular units (BMUs). The key determinant of whether osteoclasts form and remodelling occurs is the ratio between RANKL, a cytokine which stimulates osteoclastogenesis, and OPG, its inhibitor. This review initially details the different circumstances, conditions, and factors which have been found to modulate the RANKL:OPG ratio, and fundamental factors to be considered if a robust in vitro model is to be developed. Following this, an examination of what has been achieved thus far in replicating remodelling in vitro using three-dimensional co-cultures is performed, before overviewing how such systems are already being utilised in the study of associated diseases, such as metastatic cancer and dental disorders. Finally, a discussion of the most important considerations to be incorporated going forward is presented. This details the need for the use of cells capable of endogenously producing the required cytokines, application of mechanical stimulation, and the presence of appropriate hormones in order to produce a robust model of bone remodelling.
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Affiliation(s)
| | - Gwendolen C. Reilly
- Department of Materials Science and Engineering, University of Sheffield, Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
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32
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Xiao ZF, He JB, Su GY, Chen MH, Hou Y, Chen SD, Lin DK. Osteoporosis of the vertebra and osteochondral remodeling of the endplate causes intervertebral disc degeneration in ovariectomized mice. Arthritis Res Ther 2018; 20:207. [PMID: 30201052 PMCID: PMC6131954 DOI: 10.1186/s13075-018-1701-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 08/15/2018] [Indexed: 12/21/2022] Open
Abstract
Background Studies on the relationship between osteoporosis and intervertebral disc degeneration (IVDD) are inconsistent. Therefore, we assessed whether IVDD is affected by vertebral osteoporosis in ovariectomized mice and investigated the underlying pathogenesis of IVDD related to osteoporosis. Methods Thirty healthy female C57BL/6 J mice aged 8 weeks were randomly divided into two groups: a control group (sham operation, n = 15) and an ovariectomy group (OVX; bilateral ovariectomy, n = 15). At 12 weeks after surgery, the bone quantity and microstructure in the lumbar vertebra and endplate as well as the volume of the L4/5 disc space were evaluated by microcomputed tomography (micro-CT). The occurrence and characteristic alterations of IVDD were identified via histopathological staining. The osteoclasts were detected using tartrate-resistant acid phosphatase (TRAP) staining. Type II collagen (Col II), osterix (OSX), osteopontin (OPN), and vascular endothelial growth factor (VEGF) expression in the intervertebral disc were detected by immunohistochemical analysis. Results OVX significantly increased the body weight and decreased the uterus weight. Micro-CT analysis showed that osteoporosis of the vertebra and osteochondral remodeling of the endplate were accompanied by an increase in the endplate porosity and a decrease in the disc volume in the OVX group. Likewise, histological evaluation revealed that IVDD occurred at 12 weeks after ovariectomy, with features of endochondral ossification of the endplate, loose and broken annulus fibrosus, and degeneration of nucleus pulposus. TRAP staining showed that numerous active osteoclasts appeared in the subchondral bone and cartilaginous endplate of OVX mice, whereas osteoclasts were rarely detected in control mice. Immunohistochemical analysis demonstrated that the expression of osterix was significantly increased, notably in the endplate of OVX mice. In addition, Col II was decreased in the ossification endplate and the degenerative annulus fibrosus, where OPN and VEGF expressions were elevated in OVX mice. Conclusions OVX induced vertebral osteoporosis and osteochondral remodeling of the cartilaginous endplate contributing to the angiogenesis and an increase in porosity of the bone-cartilage surface, and also affected the matrix metabolism which consequently had detrimental effects on the intervertebral disc. Our study suggests that preserving the structural integrity and the function of the adjacent structures, including the vertebrae and endplates, may protect the disc against degeneration. Electronic supplementary material The online version of this article (10.1186/s13075-018-1701-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhi-Feng Xiao
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China.,The Laboratory Affiliated to Orthopaedics and Traumatology of Chinese Medicine of Linnan Medical Research Center of Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China.,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China
| | - Jian-Bo He
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China.,The Laboratory Affiliated to Orthopaedics and Traumatology of Chinese Medicine of Linnan Medical Research Center of Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China.,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China
| | - Guo-Yi Su
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China.,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China
| | - Mei-Hui Chen
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China.,The Laboratory Affiliated to Orthopaedics and Traumatology of Chinese Medicine of Linnan Medical Research Center of Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China.,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China
| | - Yu Hou
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China.,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China
| | - Shu-Dong Chen
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China.,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China
| | - Ding-Kun Lin
- The Department of Spinal Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111, Dade Road, Yuexiu District, Guangzhou, 510120, China. .,The Laboratory Affiliated to Orthopaedics and Traumatology of Chinese Medicine of Linnan Medical Research Center of Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China. .,Guangzhou University of Chinese Medicine, No. 12, Jichang Road, Baiyun District, Guangzhou, 510405, China.
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33
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Vinik Y, Shatz-Azoulay H, Hiram-Bab S, Kandel L, Gabet Y, Rivkin G, Zick Y. Ablation of the mammalian lectin galectin-8 induces bone defects in mice. FASEB J 2017; 32:2366-2380. [PMID: 29259034 DOI: 10.1096/fj.201700716r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Mice overexpressing galectin-8 [gal-8 transgenic (Tg)], a secreted mammalian lectin, exhibit enhanced bone turnover and reduced bone mass, similar to cases of postmenopausal osteoporosis. Here, we show that gal-8 knockout (KO) mice have increased bone mass accrual at a young age but exhibit accelerated bone loss during adulthood. These phenotypes can be attributed to a gal-8-mediated increase in receptor activator of NF-κB ligand (RANKL) expression that promotes osteoclastogenesis, combined with direct inhibition of osteoblast differentiation, evident by reduced bone morphogenetic protein (BMP) signaling, reduced phosphorylation of receptor regulated mothers against decapentaplegic homolog (R-SMAD) and reduced expression of osteoblast differentiation markers osterix, osteocalcin, runt-related transcription factor 2 (RUNX2), dentin matrix acidic phosphoprotein-1 (DMP1), and alkaline phosphatase. At the same time, gal-8 promotes expression of estrogen receptor α (ESR1). Accordingly, the rate of bone loss is accelerated in ovariectomized, estrogen-deficient gal-8 Tg mice, whereas gal-8 KO mice, having low levels of ESR1, are refractory to ovariectomy. Finally, gal-8 mRNA positively correlates with the mRNA levels of osteoclastogenic markers RANKL, tartrate-resistant acid phosphatase, and cathepsin K in human femurs. Collectively, these findings identify gal-8 as a new physiologic player in the regulation of bone mass.-Vinik, Y., Shatz-Azoulay, H., Hiram-Bab, S., Kandel, L., Gabet, Y., Rivkin, G., Zick, Y. Ablation of the mammalian lectin galectin-8 induces bone defects in mice.
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Affiliation(s)
- Yaron Vinik
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Hadas Shatz-Azoulay
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Sahar Hiram-Bab
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; and
| | - Leonid Kandel
- Department of Orthopedic Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Yankel Gabet
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; and
| | - Gurion Rivkin
- Department of Orthopedic Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Yehiel Zick
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
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34
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Jensen LK, Koch J, Dich-Jorgensen K, Aalbaek B, Petersen A, Fuursted K, Bjarnsholt T, Kragh KN, Tøtterup M, Bue M, Hanberg P, Søballe K, Heegaard PMH, Jensen HE. Novel porcine model of implant-associated osteomyelitis: A comprehensive analysis of local, regional, and systemic response. J Orthop Res 2017; 35:2211-2221. [PMID: 27958656 DOI: 10.1002/jor.23505] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/05/2016] [Indexed: 02/04/2023]
Abstract
UNLABELLED Pigs are favorable experimental animals for infectious diseases in humans. However, implant-associated osteomyelitis (IAO) models in pigs have only been evaluated using high-inoculum infection (>108 CFU) models in 1975 and 1993. Therefore, the aim of this paper was to present a new low inoculum porcine model of human IAO based on 42 experimental pigs. The model was created by drilling an implant cavity in the tibial bone followed by insertion of a small steel implant and simultaneous inoculation of Staphylococcus aureus bacteria (n = 32) or saline (n = 10). The infected pigs were either inoculated with 104 CFU (n = 26) or 102 and 103 CFU (n = 6). All animals were euthanized 5 days after insertion of implants. Pigs receiving the high-inoculum infections showed a significantly higher volume of bone lesion, number of neutrophils around the implant, concentrations of acute phase proteins in serum, and enlargement of regional lymph nodes. A positive correlation was present between a high number of surrounding neutrophils and high values of all other parameters. Furthermore, a threshold of 40 neutrophils per 10 high power fields for the histopathological diagnosis of high grade IAO was defined. IN CONCLUSION This paper describes a novel low-inoculum S. aureus porcine model of IAO which was demonstrated to be reliable, reproducible and discriminative to human IAO, and represents a requested and valuable tool in orthopedic research. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2211-2221, 2017.
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Affiliation(s)
- Louise Kruse Jensen
- Department of Veterinary Disease Biology, University of Copenhagen, Ridebanevej 3, 1870, Frederiksberg C, Denmark
| | - Janne Koch
- Department of Experimental Medicine, University of Copenhagen, Blegdamsvej 2, 2200, Copenhagen N, Denmark
| | - Kirstine Dich-Jorgensen
- Department of Veterinary Disease Biology, University of Copenhagen, Ridebanevej 3, 1870, Frederiksberg C, Denmark
| | - Bent Aalbaek
- Department of Veterinary Disease Biology, University of Copenhagen, Ridebanevej 3, 1870, Frederiksberg C, Denmark
| | - Andreas Petersen
- Statens Serum Institut, Artillerivej 5, 2300, Copenhagen S, Denmark
| | - Kurt Fuursted
- Statens Serum Institut, Artillerivej 5, 2300, Copenhagen S, Denmark
| | - Thomas Bjarnsholt
- Costerton Biofilm Center, Institute of Immunology and Microbiology, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen N, Denmark.,Department of Clinical Microbiology, Copenhagen University Hospital, Juliane Maries Vej 22, 2100, Copenhagen Ø, Denmark
| | - Kasper Nørskov Kragh
- Costerton Biofilm Center, Institute of Immunology and Microbiology, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen N, Denmark
| | - Mikkel Tøtterup
- Orthopedic Research Unit, Aarhus University Hospital, Building 1A, Nørrebrogade 44, 8000, Aarhus, Denmark.,Department of Orthopedic Surgery, Randers Regional Hospital, Skovlyvej 15, 8930, Randers NØ, Denmark
| | - Mats Bue
- Orthopedic Research Unit, Aarhus University Hospital, Building 1A, Nørrebrogade 44, 8000, Aarhus, Denmark.,Department of Orthopedic Surgery, Horsens Regional Hospital, Sundvej 30, 8700, Horsens, Denmark
| | - Pelle Hanberg
- Orthopedic Research Unit, Aarhus University Hospital, Building 1A, Nørrebrogade 44, 8000, Aarhus, Denmark
| | - Kjeld Søballe
- Orthopedic Research Unit, Aarhus University Hospital, Building 1A, Nørrebrogade 44, 8000, Aarhus, Denmark
| | - Peter M H Heegaard
- Innate Immunology Group, National Veterinary Institute, Technical University of Denmark, Bülowsvej 27, 1870, Frederiksberg C, Denmark
| | - Henrik Elvang Jensen
- Department of Veterinary Disease Biology, University of Copenhagen, Ridebanevej 3, 1870, Frederiksberg C, Denmark
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35
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Wu X, Huang Z, Wang X, Fu Z, Liu J, Huang Z, Kong G, Xu X, Ding J, Zhu Q. Ketogenic Diet Compromises Both Cancellous and Cortical Bone Mass in Mice. Calcif Tissue Int 2017; 101:412-421. [PMID: 28547346 DOI: 10.1007/s00223-017-0292-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 05/15/2017] [Indexed: 12/15/2022]
Abstract
To clarify osteoporotic effects of ketogenic diet (KD) on cancellous and cortical bone compared with ovariectomy (OVX) in mice. Forty female C57BL/6J 8-week-old mice were randomly divided into SD+Sham, SD+OVX, KD+Sham, and KD+OVX groups, and fed for 12 weeks. The distal femur of trabecular bone and the middle femur of cortical bone were evaluated with Micro-CT scanning. The maximum bending force and stiffness of the tibia were calculated using a three-point bending test. Osteoblast and osteoclast expression of femur were identified using tartrate-resistant acid phosphatase (TRAP), collagen type I (CoLI), and osteocalcin (OCN) staining. A 2-factor analysis of variance was used to evaluate effects of KD and OVX on radiological, biomechanical, and histological parameters. KD resulted in not only remarkable cancellous bone decline comparable to OVX, but also unique cortical bone reduction. The maximum bending force and stiffness decreased in the KD+Sham and KD+OVX groups but did not change in the SD+OVX group. The KD+OVX led to significantly higher expression in TRAP and noticeably lower expression in CoLI when compared with other groups. Both KD+Sham and SD+OVX prominently increased expression in TRAP, but decreased expression in CoLI. There was no significant difference in OCN among the four groups. The present results suggest that KD compromises both the cancellous and cortical bone architecture of long bones while OVX only in cancellous bone architecture. A combination of KD and OVX may lead to more bone loss.
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Affiliation(s)
- Xiuhua Wu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Zucheng Huang
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Xiaomeng Wang
- Department of Spinal Surgery, LongYan First Hospital, Longyan, Fujian, China
| | - Zhaozong Fu
- Department of Spinal Surgery, Affiliated Jiangmen Hospital of Sun Yat Sen University, Jiangmen, Guangdong, China
| | - Junhao Liu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Zhiping Huang
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Ganggang Kong
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Xiaolin Xu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Jianyang Ding
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China
| | - Qingan Zhu
- Department of Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, China.
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36
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Sequetto PL, Gonçalves RV, Pinto AS, Oliveira MGA, Maldonado IRSC, Oliveira TT, Novaes RD. Low Doses of Simvastatin Potentiate the Effect of Sodium Alendronate in Inhibiting Bone Resorption and Restore Microstructural and Mechanical Bone Properties in Glucocorticoid-Induced Osteoporosis. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2017; 23:989-1001. [PMID: 28743325 DOI: 10.1017/s1431927617012363] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
By using an experimental model of dexamethasone-induced osteoporosis we investigated the effects of different therapeutic schemes combining sodium alendronate (SA) and simvastatin on bone mineral and protein composition, microstructural and mechanical remodeling. Wistar rats were randomized into eight groups: G1: non-osteoporotic; G2: osteoporotic; G3, G4, and G5: osteoporotic+SA (0.2, 0.4, and 0.8 mg/kg, respectively); G6, G7, and G8: osteoporotic+SA (0.2, 0.4, and 0.8 mg/kg, respectively)+simvastatin (0.4, 0.6, and 1 mg/kg, respectively). Osteoporosis was induced by dexamethasone (7 mg/kg, i.m.) once a week for 5 weeks. All treatments were administered for 8 weeks. Dexamethasone increased serum levels of alkaline phosphatase, calcium, phosphorus, and urea, especially in non-treated animals, which showed severe osteoporosis. Dexamethasone also induced bone microstructural fragility and reduced mechanical resistance, which were associated with a marked depletion in mineral mass, collagenous and non-collagenous protein levels in cortical and cancellous bone. Although SA has attenuated osteoporosis severity, the effectiveness of drug therapy was enhanced combining alendronate and simvastatin. The restoration in serum parameters, organic and inorganic bone mass, and mechanical behavior showed a dose-dependent effect that was potentially related to the complementary mechanisms by which each drug acts to induce bone anabolism, accelerating tissue repair.
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Affiliation(s)
- Priscila L Sequetto
- Department of Pharmaceutical Sciences - Health Area, Universidade Federal de Juiz de Fora, Governador Valadares, 35020-220, MG, Brazil
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, 36570-000, MG, Brazil
| | | | - Aloísio S Pinto
- Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa, 36570-000, MG, Brazil
| | - Maria G A Oliveira
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, 36570-000, MG, Brazil
| | - Izabel R S C Maldonado
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, 36570-000, MG, Brazil
| | - Tânia T Oliveira
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, 36570-000, MG, Brazil
| | - Rômulo D Novaes
- Institute of Biomedical Sciences, Department Structural Biology, Universidade Federal de Alfenas, Alfenas, 37130-001, MG, Brazil
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37
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Allen MR. Preclinical Models for Skeletal Research: How Commonly Used Species Mimic (or Don’t) Aspects of Human Bone. Toxicol Pathol 2017; 45:851-854. [DOI: 10.1177/0192623317733925] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Preclinical studies play an indispensable role in exploring the biological regulation of the musculoskeletal system. They are required in all drug development pipelines where both small and large animal models are needed to understand efficacy and side effects. This brief review highlights 4 aspects of human bone, longitudinal bone growth, intracortical remodeling, collagen/mineral interface, and age-related changes, and discusses how various animal models recapitulate (or don’t) these aspects of human skeletal physiology.
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Affiliation(s)
- Matthew R. Allen
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Division of Nephrology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Biomedical Engineering, Indiana University Purdue University of Indianapolis, Indianapolis, Indiana, USA
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38
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Fouda AM, Youssef AR. Antiosteoporotic activity of Salvadora persica sticks extract in an estrogen deficient model of osteoporosis. Osteoporos Sarcopenia 2017; 3:132-137. [PMID: 30775518 PMCID: PMC6372776 DOI: 10.1016/j.afos.2017.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/13/2017] [Accepted: 07/16/2017] [Indexed: 01/23/2023] Open
Abstract
Objectives The effect of Salvadora persica sticks on prevention of tooth decay is well established, but the effect of S. persica stick extract (SPE) on the prevention/treatment of osteoporosis has not been studied. The purpose of this study is to provide baseline information of the effectiveness of SPE on ovariectomized (OVX) rat model of osteoporosis. Methods SPE was administered at 50, 150, and 300 mg/d orally to OVX rats for 16 weeks. Serum osteocalcin, alkaline phosphatase, calcium, and phosphorus, and urinary deoxypyridinoline, calcium, and phosphorus were measured. Bone mineral density (BMD), 3-point bending test, and histomorphometric characteristics of the femoral bone were also examined. Results SPE at doses of 150 and 300 mg/d, but not 50 mg/d, significantly prevented bone loss in OVX rats as proved by decreased biochemical markers of bone resorption and increased BMD and biomechanical indices of the femoral bone. Conclusions This study confirms a dose-dependent protective action of SPE on rat OVX model of osteoporosis. This effect needs further investigation at the molecular and clinical levels to provide a natural and cost-effective alternative for the management of postmenopausal osteoporosis.
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Affiliation(s)
- Abdel-Motaal Fouda
- Clinical Pharmacology & Therapeutics, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Amany Ragab Youssef
- Clinical Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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39
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Wang F, Zhao Y, Liu Y, Yu P, Yu Z, Wang J, Xue C. Peptides from Antarctic krill (Euphausia superba
) ameliorate senile osteoporosis via activating osteogenesis related BMP2/Smads and Wnt/β-catenin pathway. J Food Biochem 2017. [DOI: 10.1111/jfbc.12381] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fei Wang
- College of Food Science and Engineering; Ocean University of China; Qingdao Shandong Province 266003 China
| | - Yanlei Zhao
- College of Food Science and Engineering; Ocean University of China; Qingdao Shandong Province 266003 China
| | - Yuntao Liu
- Shandong Oriental Ocean Sci-tech Co., Ltd.; Yantai Shandong Province 264003 China
| | - Peng Yu
- College of Food Science and Engineering; Ocean University of China; Qingdao Shandong Province 266003 China
| | - Zhe Yu
- College of Food Science and Engineering; Ocean University of China; Qingdao Shandong Province 266003 China
| | - Jingfeng Wang
- College of Food Science and Engineering; Ocean University of China; Qingdao Shandong Province 266003 China
| | - Changhu Xue
- College of Food Science and Engineering; Ocean University of China; Qingdao Shandong Province 266003 China
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40
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Paschalis EP, Gamsjaeger S, Hassler N, Klaushofer K, Burr D. Ovarian hormone depletion affects cortical bone quality differently on different skeletal envelopes. Bone 2017; 95:55-64. [PMID: 27826024 DOI: 10.1016/j.bone.2016.10.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 10/17/2016] [Accepted: 10/25/2016] [Indexed: 12/31/2022]
Abstract
The physical properties of bone tissue are determined by the organic and mineral matrix, and are one aspect of bone quality. As such, the properties of mineral and matrix are a major contributor to bone strength, independent of bone mass. Cortical bone quality may differ regionally on the three skeletal envelopes that compose it. Each of these envelopes may be affected differently by ovarian hormone depletion. Identifying how these regions vary in their tissue adaptive response to ovarian hormones can inform our understanding of how tissue quality contributes to overall bone strength in postmenopausal women. We analyzed humeri from monkeys that were either SHAM-operated or ovariectomized. Raman microspectroscopic analysis was performed as a function of tissue age based on the presence of multiple fluorescent double labels, to determine whether bone compositional properties (mineral/matrix ratio, tissue water, glycosaminoglycan, lipid, and pyridinoline contents, and mineral maturity/crystallinity) are similar between periosteal, osteonal, and endosteal surfaces, as well as to determine the effects of ovarian hormone depletion on them. The results indicate that mineral and organic matrix characteristics, and kinetics of mineral and organic matrix modifications as a function of tissue age are different at periosteal vs. osteonal and endosteal surfaces. Ovarian hormone depletion affects the three cortical surfaces (periosteal, osteonal, endosteal) differently. While ovarian hormone depletion does not significantly affect the quality of either the osteoid or the most recently mineralized tissue, it significantly affects the rate of subsequent mineral accumulation, as well as the kinetics of organic matrix modifications, culminating in significant differences within interstitial bone. These results highlight the complexity of the cortical bone compartments, add to existing knowledge on the effects of ovarian hormone depletion on local cortical bone properties, and may contribute to a better understanding of the location specific action of drugs used in the management of postmenopausal osteoporosis.
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Affiliation(s)
- E P Paschalis
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria.
| | - S Gamsjaeger
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria
| | - N Hassler
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria
| | - K Klaushofer
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Heinrich Collin Str. 30, A-1140 Vienna, Austria
| | - D Burr
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Biomedical Engineering, Indiana University-Purdue University, Indianapolis (IUPUI), Indianapolis, IN 46202, USA
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Application of Histopathology and Bone Histomorphometry for Understanding Test Article-Related Bone Changes and Assessing Potential Bone Liabilities. MOLECULAR AND INTEGRATIVE TOXICOLOGY 2017. [DOI: 10.1007/978-3-319-56192-9_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Dittmer KE, Hitchcock B, McDougall S, Hunnam JC. Pathophysiology of humeral fractures in a sample of dairy heifers. N Z Vet J 2016; 64:230-7. [PMID: 27020851 DOI: 10.1080/00480169.2016.1171173] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AIMS To investigate the pathophysiology of humeral fractures in first-lactation dairy heifers in the North Island of New Zealand. METHODS Ten 2-year-old dairy heifers with humeral fractures were subject to euthanasia and the fractured and non-fractured contralateral humeri were collected. Humeri were also collected from 10 unaffected 2-year-old dairy heifers sent for slaughter. Humeri from heifers with and without fractures were examined using computed tomography (CT), and four slices of the diaphysis and lower metaphysis (D1-4) were analysed using the Bone J plug-in for Image J. The humeri were sectioned sagittally and 5 mm bone slabs were processed for histopathology. RESULTS There were no differences in bone length between the humeri from heifers with or without fractures (p=0.31). Median cortical bone mineral density at D1 was increased in humeri from affected compared with unaffected heifers (810 vs. 783 mg/cm(3); p=0.03), cortical area at D1 was reduced (816 vs. 1,037 mm(2); p=0.04), the median stress strain index, a calculated theoretical measure of bone strength, at D1 was decreased (7,288 vs. 9,072 mm(3); p<0.01), and the median ratio of overall bone volume (BV) to total volume (TV) was decreased (0.32 vs. 0.38; p<0.01). The median periosteal circumference at D1 was also reduced in humeri from affected compared with unaffected heifers (151 vs. 173 mm; p<0.01). Using a binary logistic regression model, BV/TV was the only variable associated with humeral fractures (p=0.03).In nine of 10 fractured humeri the fracture appeared to have started just distal to the head of the humerus and spiralled distally down the diaphysis to end just above the humeral condyles. Histopathological findings included a reduction in the number, and thickness, of trabeculae in the metaphysis; metaphyseal growth arrest lines, and osteoclastic resorption in fractured humeri. Concentrations of copper in serum from four of five animals with fractures were within, and one was below, normal reference ranges, while concentration of copper in the livers of three heifers with fractures were below adequate ranges. CONCLUSIONS The CT and histological findings were consistent with a diagnosis of osteoporosis. We propose that humeral fractures in dairy heifers are associated with osteoporosis, possibly as a result of insufficient deposition of bone during growth because of protein-calorie malnutrition. Increased osteoclastic resorption of bone associated with calcium mobilisation for lactation, and periods of copper deficiency may contribute to bone weakening.
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Affiliation(s)
- K E Dittmer
- a Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Palmerston North , New Zealand
| | - B Hitchcock
- b Cognosco, Anexa Animal Health , Morrinsville , 3340 , New Zealand
| | - S McDougall
- b Cognosco, Anexa Animal Health , Morrinsville , 3340 , New Zealand
| | - J C Hunnam
- b Cognosco, Anexa Animal Health , Morrinsville , 3340 , New Zealand
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Wang HD, Chen Z, Inoue I, Fu SJ, Shi XL, Tang L, Zhang FZ, Jiang Y, Jiang H. Effects of electroacupuncture at GB points on markers of osteoporosis and bodyweight in ovariectomised rats. Acupunct Med 2015; 33:465-71. [PMID: 26245584 PMCID: PMC4860971 DOI: 10.1136/acupmed-2014-010743] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2015] [Indexed: 12/20/2022]
Abstract
Background Based on a description of acupuncture to treat a bone disease resembling osteoporosis in the ancient text of Huangdi Neijing, we aimed to assess the effects of electroacupuncture (EA) at GB points in ovariectomised (OVX) rats. Methods 40 female Wistar rats were randomly divided into four groups (n=10 each): ovariectomised model group (OVX); ovariectomised group treated with EA at GB points (OVX+GB); ovariectomised group treated with EA at non-GB points (OVX+N) in the hindlimb; and a sham surgery group (Sham). Three months after ovariectomy, rats in the OVX+GB and OVX+N groups received EA treatment for 3 months. Urine, blood and femur samples were collected from each animal for analysis. Results Bodyweight (BW) in the OVX+GB group decreased after EA treatment, reaching a minimum of ∼12% below the OVX and OVX+N groups at 1 month. Concentrations of urine deoxypyridinoline, a bone resorption marker, were significantly elevated in the OVX and OVX+N groups but not the OVX+GB group. Concentrations of serum bone specific alkaline phosphatase, a bone formation marker, were significantly higher in the OVX+GB group versus the Sham and OVX groups. Bone mineral density (BMD) did not differ between the OVX, OVX+GB and OVX+N groups, but was ∼10% lower than the Sham group. However, BMD/BW in the OVX+GB group was significantly higher than in the OVX and OVX+N groups and similar to the Sham group. Histological assessment of the femur showed that EA at GB points improved the bone architecture. Conclusions EA treatment at GB points had anti-osteoporotic effects in a rat model of osteoporosis.
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Affiliation(s)
- Hong-Du Wang
- Department of Acupuncture, School of Traditional Chinese Medicine Combined with Western Medicine, Sichuan Medical University, Luzhou, Sichuan, China
| | - Zhuang Chen
- Laboratory of Infection and Immunology, Affiliated Hospital, Sichuan Medical University, Luzhou, Sichuan, China
| | - Isao Inoue
- Institute of Cardiovascular Research, Sichuan Medical University, Luzhou, Sichuan, China
| | - Shi-Jie Fu
- Department of Orthopaedics, Affiliated TCM Hospital, Sichuan Medical University, Luzhou, Sichuan, China
| | - Xiao-Lin Shi
- Laboratory of Infection and Immunology, Affiliated Hospital, Sichuan Medical University, Luzhou, Sichuan, China
| | - Li Tang
- Laboratory of Infection and Immunology, Affiliated Hospital, Sichuan Medical University, Luzhou, Sichuan, China
| | - Feng-Zheng Zhang
- Department of Acupuncture, School of Traditional Chinese Medicine Combined with Western Medicine, Sichuan Medical University, Luzhou, Sichuan, China
| | - Yang Jiang
- Department of Acupuncture, School of Traditional Chinese Medicine Combined with Western Medicine, Sichuan Medical University, Luzhou, Sichuan, China
| | - Hua Jiang
- Department of Acupuncture, School of Traditional Chinese Medicine Combined with Western Medicine, Sichuan Medical University, Luzhou, Sichuan, China
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Abstract
Bone implants and devices are a rapidly growing field within biomedical research, and implants have the potential to significantly improve human and animal health. Animal models play a key role in initial product development and are important components of nonclinical data included in applications for regulatory approval. Pathologists are increasingly being asked to evaluate these models at the initial developmental and nonclinical biocompatibility testing stages, and it is important to understand the relative merits and deficiencies of various species when evaluating a new material or device. This article summarizes characteristics of the most commonly used species in studies of bone implant materials, including detailed information about the relevance of a particular model to human bone physiology and pathology. Species reviewed include mice, rats, rabbits, guinea pigs, dogs, sheep, goats, and nonhuman primates. Ultimately, a comprehensive understanding of the benefits and limitations of different model species will aid in rigorously evaluating a novel bone implant material or device.
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Vinik Y, Shatz-Azoulay H, Vivanti A, Hever N, Levy Y, Karmona R, Brumfeld V, Baraghithy S, Attar-Lamdar M, Boura-Halfon S, Bab I, Zick Y. The mammalian lectin galectin-8 induces RANKL expression, osteoclastogenesis, and bone mass reduction in mice. eLife 2015; 4:e05914. [PMID: 25955862 PMCID: PMC4424493 DOI: 10.7554/elife.05914] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 04/16/2015] [Indexed: 01/20/2023] Open
Abstract
Skeletal integrity is maintained by the co-ordinated activity of osteoblasts, the bone-forming cells, and osteoclasts, the bone-resorbing cells. In this study, we show that mice overexpressing galectin-8, a secreted mammalian lectin of the galectins family, exhibit accelerated osteoclasts activity and bone turnover, which culminates in reduced bone mass, similar to cases of postmenopausal osteoporosis and cancerous osteolysis. This phenotype can be attributed to a direct action of galectin-8 on primary cultures of osteoblasts that secrete the osteoclastogenic factor RANKL upon binding of galectin-8. This results in enhanced differentiation into osteoclasts of the bone marrow cells co-cultured with galectin-8-treated osteoblasts. Secretion of RANKL by galectin-8-treated osteoblasts can be attributed to binding of galectin-8 to receptor complexes that positively (uPAR and MRC2) and negatively (LRP1) regulate galectin-8 function. Our findings identify galectins as new players in osteoclastogenesis and bone remodeling, and highlight a potential regulation of bone mass by animal lectins. DOI:http://dx.doi.org/10.7554/eLife.05914.001 The forces applied to the body during daily activities cause bones to be constantly remodeled, which is essential for keeping them healthy. In most adult organisms, new bone is created at the same rate at which old bone is destroyed. This means that overall bone mass remains the same. But, in diseases such as osteoporosis or bone cancer, bone is destroyed more rapidly than at which new bone is made. This leads to brittle bones that are more likely to fracture. Understanding how to increase the rate of bone renewal might therefore help scientists develop new treatments for bone diseases. Bone is created by cells called osteoblasts and destroyed by other cells called osteoclasts. Both of these types of cells develop from stem cells in the bone marrow. The activity of these cells is controlled by a number of factors, including the matrix of proteins that holds bone together. A group of proteins called galectins are known to act as a bridge between some of the matrix proteins and molecules on the surface of the cells. Vinik et al. took osteoblasts from a mouse skull, grew them in the laboratory, and then exposed them to a galectin protein called galectin-8. This made the osteoblasts release a protein called RANKL, which is known to boost osteoclast activity. When osteoblasts that had been exposed to galectin-8 were grown alongside bone marrow stem cells, more of the stem cells developed into the bone-destroying osteoclasts. Mice that were genetically engineered to produce more galectin-8 than normal mice develop brittle bones, despite also creating new bone at a higher rate than do normal mice. This is because osteoclast activity increases at a greater rate, resulting in an overall loss of bone in these animals. This is similar to what occurs in some individuals with osteoporosis. These experiments therefore suggest that galectin-8 plays an important role in bone remodeling and that it may be a potential target for drugs that treat diseases that weaken bones. DOI:http://dx.doi.org/10.7554/eLife.05914.002
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Affiliation(s)
- Yaron Vinik
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Hadas Shatz-Azoulay
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Alessia Vivanti
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Navit Hever
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yifat Levy
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Rotem Karmona
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Vlad Brumfeld
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Saja Baraghithy
- Bone Laboratory, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Sigalit Boura-Halfon
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Itai Bab
- Bone Laboratory, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yehiel Zick
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
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