1
|
Kemper M, Kluge A, Ney M, Beleites T, Zeidler-Rentzsch I, Keil C, Zahnert T, Neudert M. Visualization of bone formation in sheep's middle ear by using fluorochrome sequential labelling (FSL). Sci Rep 2024; 14:7046. [PMID: 38528064 DOI: 10.1038/s41598-024-57630-w] [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] [Received: 04/14/2023] [Accepted: 03/20/2024] [Indexed: 03/27/2024] Open
Abstract
One factor for the lacking integration of the middle ear stapes footplate prosthesis or the missing healing of stapes footplate fractures could be the known osteogenic inactivity. In contrast, it was recently demonstrated that titanium prostheses with an applied collagen matrix and immobilised growth factors stimulate osteoblastic activation and differentiation on the stapes footplate. Regarding those findings, the aim of this study was to evaluate the potential of bone regeneration including bone remodeling in the middle ear. Ten one-year-old female merino sheep underwent a middle ear surgery without implantation of middle ear prostheses or any other component for activating bone formation. Post-operatively, four fluorochromes (tetracycline, alizarin complexion, calcein green and xylenol orange) were administered by subcutaneous injection at different time points after surgery (1 day: tetracycline, 7 days: alizarin, 14 days: calcein, 28 days: xylenol). After 12 weeks, the temporal bones including the lateral skull base were extracted and histologically analyzed. Fluorescence microscopy analysis of the entire stapes with the oval niche, but in particular stapes footplate and the Crura stapedis revealed evidence of new bone formation. Calcein was detected in all and xylenol in 60% of the animals. In contrast, tetracycline and alizarin could only be verified in two animals. The authors were able to demonstrate the osseoregenerative potential of the middle ear, in particular of the stapes footplate, using fluorescence sequence labelling.
Collapse
Affiliation(s)
- Max Kemper
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.
| | - Anne Kluge
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Michael Ney
- Department of Audiology and Phoniatrics, Charité - University Medicine Berlin, Berlin, Germany
| | - Thomas Beleites
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Ines Zeidler-Rentzsch
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Christiane Keil
- Department of Orthodontics, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Thomas Zahnert
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| | - Marcus Neudert
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany
| |
Collapse
|
2
|
Sheng N, Xing F, Wang J, Zhang QY, Nie R, Li-Ling J, Duan X, Xie HQ. Recent progress in bone-repair strategies in diabetic conditions. Mater Today Bio 2023; 23:100835. [PMID: 37928253 PMCID: PMC10623372 DOI: 10.1016/j.mtbio.2023.100835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 10/02/2023] [Accepted: 10/14/2023] [Indexed: 11/07/2023] Open
Abstract
Bone regeneration following trauma, tumor resection, infection, or congenital disease is challenging. Diabetes mellitus (DM) is a metabolic disease characterized by hyperglycemia. It can result in complications affecting multiple systems including the musculoskeletal system. The increased number of diabetes-related fractures poses a great challenge to clinical specialties, particularly orthopedics and dentistry. Various pathological factors underlying DM may directly impair the process of bone regeneration, leading to delayed or even non-union of fractures. This review summarizes the mechanisms by which DM hampers bone regeneration, including immune abnormalities, inflammation, reactive oxygen species (ROS) accumulation, vascular system damage, insulin/insulin-like growth factor (IGF) deficiency, hyperglycemia, and the production of advanced glycation end products (AGEs). Based on published data, it also summarizes bone repair strategies in diabetic conditions, which include immune regulation, inhibition of inflammation, reduction of oxidative stress, promotion of angiogenesis, restoration of stem cell mobilization, and promotion of osteogenic differentiation, in addition to the challenges and future prospects of such approaches.
Collapse
Affiliation(s)
- Ning Sheng
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Fei Xing
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Jie Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Qing-Yi Zhang
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Rong Nie
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Jesse Li-Ling
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
- Frontier Medical Center, Tianfu Jincheng Laboratory, Chengdu, 610212, China
- Department of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Xin Duan
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Hui-Qi Xie
- Department of Orthopedic Surgery and Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
- Frontier Medical Center, Tianfu Jincheng Laboratory, Chengdu, 610212, China
| |
Collapse
|
3
|
Aristodemou E, Retzepi M, Calciolari E, Donos N. The effect of experimental diabetes and membrane occlusiveness on guided bone regeneration: A proof of principle study. Clin Oral Investig 2022; 26:5223-5235. [PMID: 35688955 DOI: 10.1007/s00784-022-04491-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/12/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To evaluate the effect of membrane occlusiveness and experimental diabetes on early and late healing following guided bone regeneration. MATERIAL AND METHODS A total of 30 Wistar rats were randomly allocated to three groups: healthy (H), uncontrolled diabetic (UD) and controlled diabetic (CD). A critical size calvarial defect (CSD) was created at the mid-portion of one parietal bone, and it was treated with a double layer of e-PTFE membrane presenting 0.5 mm perforations. The animals were killed at 7 and 30 days of healing, and qualitative and quantitative histological evaluations were performed. Data were compared with the ones previously obtained from other 30 animals (10H, 10UD, 10 CD), where two CSDs were randomly treated with a double-layer e-PTFE occlusive membrane or left empty. RESULTS Following application of cell occlusive or cell permeable membranes, significant regeneration can be observed. However, at 30 days in the H group occlusive compared to cell permeable membranes promoted enhanced bone regeneration (83.9 ± 7.3% vs. 52.5 ± 8.6%), while no significant differences were observed within the CD and UD groups. UD led to reduced regeneration compared to H when an occlusive barrier was applied, whereas comparable outcomes to H and CD were observed when placing perforated membranes. CONCLUSION The application of cell permeable membranes may have masked the potentially adverse effect of experimental UD on bone regeneration. CLINICAL RELEVANCE Membrane porosity might contribute to modulate the bone regenerative response in UD conditions. Future studies are needed to establish the degree of porosity associated with the best regenerative outcomes as well as the underlying molecular mechanisms.
Collapse
Affiliation(s)
| | - M Retzepi
- Centre for Oral Clinical Research and Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - E Calciolari
- Centre for Oral Clinical Research and Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Dental School, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - N Donos
- Centre for Oral Clinical Research and Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK.
| |
Collapse
|
4
|
Comeau-Gauthier M, Tarchala M, Luna JLRG, Harvey E, Merle G. Unleashing β-catenin with a new anti-Alzheimer drug for bone tissue regeneration. Injury 2020; 51:2449-2459. [PMID: 32829895 DOI: 10.1016/j.injury.2020.07.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/18/2020] [Indexed: 02/02/2023]
Abstract
The Wnt/β-catenin signaling pathway is critical for bone differentiation and regeneration. Tideglusib, a selective FDA approved glycogen synthase kinase-3β (GSK-3β) inhibitor, has been shown to promote dentine formation, but its effect on bone has not been examined. Our objective was to study the effect of localized Tideglusib administration on bone repair. Bone healing between Tideglusib treated and control mice was analysed at 7, 14 and 28 days postoperative (PO) with microCT, dynamic histomorphometry and immunohistology. There was a local downregulation of GSK-3β in Tideglusib animals, resulting in a significant increase in the amount of new bone formation with both enhanced cortical bone bridging and medullary bone deposition. The bone formation in the Tideglusib group was characterized by early osteoblast differentiation with down-regulation of GSK-3β at day 7 and 14, and higher accumulation of active β-catenin at day 14. Here, for the first time, we show a positive effect of Tideglusib on bone formation through the inactivation of GSK-3β. Furthermore, the findings suggest that Tideglusib does not interfere with precursor cell recruitment and commitment, contrary to other GSK-3β antagonists such as lithium chloride. Taken together, the results indicate that Tideglusib could be used directly at a fracture site during the initial intraoperative internal fixation without the need for further surgery, injection or drug delivery system. This FDA-approved drug may be useful in the future for the prevention of non-union in patients presenting with a high risk for fracture-healing.
Collapse
Affiliation(s)
- Marianne Comeau-Gauthier
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal, Canada; Experimental Surgery, Faculty of Medicine, McGill University. Rue de la Montaigne, Montreal, QC, Canada.
| | - Magdalena Tarchala
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal, Canada; Montreal General Hospital, 1650 Cedar Avenue, Room A10-110, Montreal, Qc., H3G 1A4 Canada.
| | - Jose Luis Ramirez-Garcia Luna
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal, Canada; Experimental Surgery, Faculty of Medicine, McGill University. Rue de la Montaigne, Montreal, QC, Canada; Montreal General Hospital, 1650 Cedar Avenue, Room A10-110, Montreal, Qc., H3G 1A4 Canada.
| | - Edward Harvey
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal, Canada; Bone Engineering Labs, Montreal General Hospital, 1650 Cedar Avenue, Room C10-124, Montreal, Qc., H3G 1A4 Canada.
| | - Geraldine Merle
- Chemical Engineering Department, Polytechnique J.-A.-Bombardier building Polytechnique Montréal C.P. 6079, succ. Centre-ville, Montréal (Québec), H3C 3A7, Canada.
| |
Collapse
|
5
|
Jeong SH, Jung BH, Yoo KY, Um HS, Chang BS, Lee JK, Choi WY. Determination of the optimal diabetes duration for bone regeneration experiments in an alloxan-induced diabetic rabbit calvarial defect model. J Periodontal Implant Sci 2019; 48:383-394. [PMID: 30619639 PMCID: PMC6312880 DOI: 10.5051/jpis.2018.48.6.383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 12/16/2018] [Indexed: 01/23/2023] Open
Abstract
Purpose The purpose of this study was to evaluate the optimal diabetes duration for bone regeneration experiments in an alloxan monohydrate (ALX)–induced diabetic rabbit calvarial defect model by evaluating the association between diabetes duration and bone healing capacity. Methods Twenty-four New Zealand white rabbits were used. Twenty-two rabbits were injected with 100 mg/kg of ALX to induce experimental diabetes. These rabbits were divided into 4 groups, including a control group and groups with diabetes durations of 1 week (group 1), 2 weeks (group 2), and 4 weeks (group 3). Calvarial defects were created at 1, 2, and 4 weeks after ALX injection and in the control rabbits. Cone-beam computed tomography (CBCT) scanning was performed on the day of surgery and at 2 and 4 weeks after surgery. The rabbits were sacrificed 4 weeks after surgery, followed by histological and immunofluorescence analysis. Results The diabetic state of all diabetic rabbits was well-maintained throughout the experiment. Reconstructed 3-dimensional CBCT imaging showed more rapid and prominent bone regeneration in the control group than in the experimental groups. Histological staining showed notable bone regeneration in the control group, in contrast to scarce bone formation in the experimental groups. The appearance and immunoreactivity of receptor activator of nuclear factor-kappa B and osteoprotegerin did not show notable differences among the groups. Conclusion ALX administration at 100 mg/kg successfully induced experimental diabetes in rabbits. The effect of diabetes on bone healing was evident when the interval between diabetes induction and the intervention was ≥1 week.
Collapse
Affiliation(s)
- Sang-Hun Jeong
- Department of Periodontology, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea
| | - Bo Hyun Jung
- Department of Anatomy, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea
| | - Ki-Yeon Yoo
- Department of Anatomy, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea.,Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, Korea
| | - Heung-Sik Um
- Department of Periodontology, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea
| | - Beom-Seok Chang
- Department of Periodontology, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea
| | - Jae-Kwan Lee
- Department of Periodontology, Gangneung-Wonju National University College of Dentistry, Gangneung, Korea.,Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, Korea
| | - Won-Youl Choi
- Research Institute for Dental Engineering, Gangneung-Wonju National University, Gangneung, Korea.,Department of Metal and Materials Engineering, Gangneung-Wonju National University, Gangneung, Korea.,Wellnanos Co., Ltd., Gangneung, Korea
| |
Collapse
|
6
|
Barbirato DDS, Fogacci MF, Gusman H, Takiya CM, Carvalho DPD, Samsone C. Hydroxyapatite calvaria graft repair in experimental diabetes mellitus in rats. J Craniomaxillofac Surg 2018; 46:1576-1585. [PMID: 30097409 DOI: 10.1016/j.jcms.2018.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/21/2018] [Accepted: 04/12/2018] [Indexed: 11/20/2022] Open
Abstract
Among the systemic conditions that impact negatively on the planning and execution of surgical procedures, diabetes mellitus (DM) is the primary clinical condition responsible for complications. This study investigated bone formation in critical defects surgically filled with hydroxyapatite (HA) in diabetic rats. A descriptive, randomized sample and blinded analysis were conducted to test bone regeneration in critical bone defects surgically performed in rat calvaria. Twenty adult male Wistar rats were randomly divided into two groups: control, normoglycemic animals (CG); and test, streptozotocin-induced hyperglycemic animals (TG). A circular bone defect was filled with HA and maintained subperiosteally. The clinical parameters evaluated were body weight, water and food intake, fasting blood glucose, and bone alkaline phosphatase. Bone-grafted area samples were submitted for histomorphometric and stereological analysis. The TG showed a significantly higher rate of new bone formation compared with the CG, sacrificed 15 days after surgery (p < 0.0001). However, at the end of the study, there was no significant difference in the amount of bone formed between groups (p = 0.077). In parallel, with the increase in osteoblastic activity observed in the TG by the measurement of systemic bone alkaline phosphatase (p = 0.016), the analysis of polarized microscopy and stereology demonstrated a lower level collagen maturation and mineralization in the TG. Quantitatively, the TG showed significantly better results for bone gain in the first 15 days. Qualitative assessments, however, showed fewer collagen fibers and bone maturation in the TG compared with the CG both at 15 and 45 days. Therefore, the postoperative evaluation of bone grafts with HA in hyperglycemic situations should consider the systemic and local effects of this condition on the quality of bone repair, rather than identifying the filling or stability of the grafted area after the process. We conclude that clinically detectable bone repair in diabetic animal models submitted to hydroxyapatite grafts may be satisfactory in the early stages. However, hyperglycemia compromises the quality of the newly formed bone and the collagen cross-linking involved in this process.
Collapse
Affiliation(s)
- Davi da Silva Barbirato
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Carlos Chagas Filho Avenue, 373, Bloco G, Sala G1-003, 1st Floor, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, Centro de Ciências da Saúde, RJ, CEP 21941-902, Brazil.
| | - Mariana Fampa Fogacci
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Carlos Chagas Filho Avenue, 373, Bloco G, Sala G1-003, 1st Floor, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, Centro de Ciências da Saúde, RJ, CEP 21941-902, Brazil
| | - Heloisa Gusman
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Carlos Chagas Filho Avenue, 373, Bloco G, Sala G1-003, 1st Floor, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, Centro de Ciências da Saúde, RJ, CEP 21941-902, Brazil
| | - Christina Maeda Takiya
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Carlos Chagas Filho Avenue, 373, Bloco G, Sala G1-003, 1st Floor, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, Centro de Ciências da Saúde, RJ, CEP 21941-902, Brazil
| | - Denise Pires de Carvalho
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Carlos Chagas Filho Avenue, 373, Bloco G, Sala G1-003, 1st Floor, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, Centro de Ciências da Saúde, RJ, CEP 21941-902, Brazil
| | - Carmelo Samsone
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Carlos Chagas Filho Avenue, 373, Bloco G, Sala G1-003, 1st Floor, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, Centro de Ciências da Saúde, RJ, CEP 21941-902, Brazil
| |
Collapse
|
7
|
Yildirimturk S, Batu S, Alatli C, Olgac V, Firat D, Sirin Y. The effects of supplemental melatonin administration on the healing of bone defects in streptozotocin-induced diabetic rats. J Appl Oral Sci 2016; 24:239-49. [PMID: 27383705 PMCID: PMC5022211 DOI: 10.1590/1678-775720150570] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/15/2016] [Indexed: 12/31/2022] Open
Abstract
Diabetes mellitus (DM) causes an increased production of free radicals that can impair bone healing. Melatonin is a hormone secreted mainly by the pineal gland, which participates in the neutralization process of free radicals.
Collapse
Affiliation(s)
- Senem Yildirimturk
- - Istanbul University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Istanbul, Turkey
| | - Sule Batu
- - Istanbul University, Faculty of Dentistry, Department of Biochemistry, Istanbul, Turkey
| | - Canan Alatli
- - Istanbul University, Institute of Oncology, Department of Pathology, Istanbul, Turkey
| | - Vakur Olgac
- - Istanbul University, Institute of Oncology, Department of Pathology, Istanbul, Turkey
| | - Deniz Firat
- - Istanbul University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Istanbul, Turkey
| | - Yigit Sirin
- - Istanbul University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Istanbul, Turkey
| |
Collapse
|
8
|
Lee RSB, Hamlet SM, Ivanovski S. The influence of titanium surface characteristics on macrophage phenotype polarization during osseous healing in type I diabetic rats: a pilot study. Clin Oral Implants Res 2016; 28:e159-e168. [DOI: 10.1111/clr.12979] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Ryan S. B. Lee
- School of Dentistry and Oral Health; Centre for Medicine and Oral Health; Griffith Health Institute; Griffith University (Gold Coast Campus); Southport QLD Australia
- Menzies Health Institute Queensland; Griffith University; Gold Coast QLD Australia
| | - Stephen M. Hamlet
- School of Dentistry and Oral Health; Centre for Medicine and Oral Health; Griffith Health Institute; Griffith University (Gold Coast Campus); Southport QLD Australia
- Menzies Health Institute Queensland; Griffith University; Gold Coast QLD Australia
| | - Saso Ivanovski
- School of Dentistry and Oral Health; Centre for Medicine and Oral Health; Griffith Health Institute; Griffith University (Gold Coast Campus); Southport QLD Australia
- Menzies Health Institute Queensland; Griffith University; Gold Coast QLD Australia
| |
Collapse
|
9
|
Shim MJ. Bone Changes in Femoral Bone of Mice Using Calcein Labeling. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2016. [DOI: 10.15324/kjcls.2016.48.2.114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Moon-Jung Shim
- Department of Clinical Laboratory Science, Ansan University, Ansan 15328, Korea
| |
Collapse
|
10
|
von Wilmowsky C, Schlegel KA, Baran C, Nkenke E, Neukam FW, Moest T. Peri-implant defect regeneration in the diabetic pig: A preclinical study. J Craniomaxillofac Surg 2016; 44:827-34. [PMID: 27209350 DOI: 10.1016/j.jcms.2016.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/26/2016] [Accepted: 04/05/2016] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES The study aims to establish a peri-implant dehiscence-type bone defect in a diabetic animal model of human bone repair and to quantify the influence of diabetes on peri-implant bone regeneration. MATERIAL AND METHODS Experimental diabetes was induced in three domestic pigs by streptozotocin. Three animals served as healthy controls. After 12 months four standardized peri-implant dehiscence bone defects were surgically created in the ramus mandibulae. The animals were sacrificed after 90 days. Samples were histologically analyzed to quantify new bone height (NBH), bone-to-implant-contact (BIC), area of newly formed bone (NFB), bone-density (BD), and bone mineralization (BM) in the prepared defect (-D) and in a local control region (-L). RESULTS After 90 days, diabetic animals revealed a significantly lower BIC (p = 0.037) and BD (p = 0.041) in the defect area (-D). NBH and BM-D differences within the groups were not significant (p > 0.05). Significant more NFB was measured in the healthy control group (p = 0.046). In the region of local bone BIC-L was significant less in the diabetic group (p = 0.028). In the local control region BD-L and BM-L was lower in the diabetic group compared to the healthy control animals (p > 0.05). CONCLUSION Histological evidence indicates impaired peri-implant defect regeneration in a diabetic animal model.
Collapse
Affiliation(s)
- Cornelius von Wilmowsky
- Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glückstrasse 11, 91054 Erlangen, Germany
| | - Karl Andreas Schlegel
- Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glückstrasse 11, 91054 Erlangen, Germany
| | - Christoph Baran
- Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glückstrasse 11, 91054 Erlangen, Germany
| | - Emeka Nkenke
- Department of Cranio-, Maxillofacial and Oral Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Friedrich Wilhelm Neukam
- Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glückstrasse 11, 91054 Erlangen, Germany
| | - Tobias Moest
- Department of Oral and Maxillofacial Surgery, University of Erlangen-Nuremberg, Glückstrasse 11, 91054 Erlangen, Germany.
| |
Collapse
|
11
|
Abbassy MA, Watari I, Bakry AS, Ono T, Hassan AH. Calcitonin and vitamin D3 have high therapeutic potential for improving diabetic mandibular growth. Int J Oral Sci 2016; 8:39-44. [PMID: 27025264 PMCID: PMC4822182 DOI: 10.1038/ijos.2015.47] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2015] [Indexed: 11/25/2022] Open
Abstract
The goal of this study was to assess the effect of the intermittent combination of an antiresorptive agent (calcitonin) and an anabolic agent (vitamin D3) on treating the detrimental effects of Type 1 diabetes mellitus (DM) on mandibular bone formation and growth. Forty 3-week-old male Wistar rats were divided into four groups: the control group (normal rats), the control C+D group (normal rats injected with calcitonin and vitamin D3), the diabetic C+D group (diabetic rats injected with calcitonin and vitamin D3) and the diabetic group (uncontrolled diabetic rats). An experimental DM condition was induced in the male Wistar rats in the diabetic and diabetic C+D groups using a single dose of 60 mg·kg−1 body weight of streptozotocin. Calcitonin and vitamin D3 were simultaneously injected in the rats of the control C+D and diabetic C+D groups. All rats were killed after 4 weeks, and the right mandibles were evaluated by micro-computed tomography and histomorphometric analysis. Diabetic rats showed a significant deterioration in bone quality and bone formation (diabetic group). By contrast, with the injection of calcitonin and vitamin D3, both bone parameters and bone formation significantly improved (diabetic C+D group) (P < 0.05). These findings suggest that these two hormones might potentially improve various bone properties.
Collapse
Affiliation(s)
- Mona A Abbassy
- Orthodontic Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Orofacial Development and Function, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.,Alexandria University, Alexandria, Egypt
| | - Ippei Watari
- Department of Orofacial Development and Function, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ahmed S Bakry
- Conservative Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.,Cariology and Operative Dentistry Department, Graduate School of Medical and Dental Sciences, Tokyo Medical & Dental University, Tokyo, Japan.,Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Takashi Ono
- Department of Orofacial Development and Function, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ali H Hassan
- Orthodontic Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
12
|
de Santana RB, Trackman PC. Effect of targeted delivery of bone morphogenetic protein-2 on bone formation in type 1 diabetes. Int J Oral Maxillofac Implants 2016; 30:707-14. [PMID: 26009923 DOI: 10.11607/jomi.3956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Bone formation and healing are diminished in experimental type 1 diabetes. The present study investigated whether controlled local release of recombinant human bone morphogenetic protein 2 (rhBMP-2) stimulates bone defect healing in diabetes as a consequence of its anabolic effects on bone. MATERIALS AND METHODS Bilateral experimental circular bone defects were created in the temporal bones of 64 BALB/cByJ mice. Defects were treated with acellular collagen sponge plus 0.4 or 1.8 μg of rhBMP-2 per defect, and untreated defects served as controls. The healing of the defects over a 14-day period in diabetic and nondiabetic mice was analyzed histomorphometrically. RESULTS Diabetes inhibited bone formation in both untreated and BMP-treated bone defects. Controlled local release of rhBMP-2 significantly stimulated bone formation in diabetic animals, bringing it nearly to normal levels, and enhanced bone regeneration in normal animals. CONCLUSION Recombinant human BMP-2 may be beneficial in treating deficient intramembranous bone formation in diabetes.
Collapse
|
13
|
Conte A, Ghiraldini B, Casarin R, Casati M, Pimentel S, Cirano F, Duarte P, Ribeiro F. Impact of type 2 diabetes on the gene expression of bone-related factors at sites receiving dental implants. Int J Oral Maxillofac Surg 2015; 44:1302-8. [DOI: 10.1016/j.ijom.2015.06.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 05/29/2015] [Accepted: 06/01/2015] [Indexed: 12/11/2022]
|
14
|
Wang L, Zhao X, Wei BY, Liu Y, Ma XY, Wang J, Cao PC, Zhang Y, Yan YB, Lei W, Feng YF. Insulin improves osteogenesis of titanium implants under diabetic conditions by inhibiting reactive oxygen species overproduction via the PI3K-Akt pathway. Biochimie 2014; 108:85-93. [PMID: 25308835 DOI: 10.1016/j.biochi.2014.10.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 10/02/2014] [Indexed: 10/24/2022]
Abstract
Clinical evidence indicates that insulin therapy improves implant survival rates in diabetic patients; however, the mechanisms responsible for this effect are unknown. Here, we test if insulin exerts anti-oxidative effects, thereby improving diabetes-associated impaired osteoblast behavior on titanium implants. To test this hypothesis, we cultured primary rabbit osteoblasts in the presence of titanium implants and studied the impact of treatment with normal serum (NS), diabetic serum (DS), DS + insulin, DS + tempol (a superoxide dismutase mimetic), DS + insulin + tempol, and DS + insulin + wortmannin. We analyzed cell function, apoptosis, and reactive oxygen species (ROS) production in osteoblasts following the various treatments. Treatment with DS induced osteoblast dysfunction, evidenced by impaired cell attachment and morphology, decreased cell proliferation and ALP activity, and decreased expression of osteogenesis-related genes. We also observed a significant increase in apoptosis. Importantly, treatment with DS resulted in increased production of ROS in osteoblasts. In contrast, treatment with insulin inhibited ROS production, alleviated cell dysfunction, and decreased apoptosis of osteoblasts on the implants. Scavenging ROS with tempol also attenuated cell dysfunction. Compared to insulin treatment alone, the combination of insulin and tempol failed to further improve osteoblast functional recovery. Moreover, the anti-oxidative and pro-osteogenic effects afforded by insulin were almost completely abolished by the phosphatidylinositol 3-kinase (PI3K) inhibitor wortmannin. These results demonstrate, for the first time, that insulin treatment alleviates the impaired osteogenesis of titanium implants under diabetic conditions by inhibiting ROS overproduction via a PI3K/Akt-dependent mechanism. Both the anti-oxidative and metabolic properties of insulin should make it a viable therapeutic option to combat diabetic implant failure.
Collapse
Affiliation(s)
- Lin Wang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Xiong Zhao
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Bo-yuan Wei
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Yi Liu
- Department of Implant Dentistry, School of Stomatology, Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Xiang-yu Ma
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Jian Wang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Peng-chong Cao
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Yang Zhang
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Ya-bo Yan
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Wei Lei
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China.
| | - Ya-fei Feng
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China.
| |
Collapse
|
15
|
Bulut E, Baş B, Altunkaynak BZ, Bekçioğlu B, Erdem Koç G, Gönülol E, Önger ME, Kaplan S. Efficacy of Ankaferd Blood Stopper on bone healing in diabetic rats: a stereological and histopathological study. Biotech Histochem 2014; 89:535-43. [PMID: 24799094 DOI: 10.3109/10520295.2014.906657] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We evaluated the effects of Ankaferd Blood Stopper (ABS) and routine antibiotic prophylaxis (AP) on early healing of bone defects in diabetic rats. We used 48 rats in the study. Diabetes was induced in 24 rats using streptozotocin; the remaining 24 healthy untreated rats served as controls. Twelve of the diabetic rats and 12 of the healthy rats were treated with AP for 3 days before surgery. Bilateral bone defects were created in the mandible of all animals. ABS was applied to the defects on the left sides of the mandibles, while nothing was applied to the right sides. Animals were sacrificed on days 7 and 14 after operation and examined for histopathology and by stereology. The volume of newly formed bone was significantly less in the diabetic rats on both days 7 and 14. Local administration of ABS significantly increased the mean volume of newly formed bone in both diabetic and nondiabetic rats at days 7 and 14. No significant difference in new bone formation was found between AP and ABS treatment in diabetic rats. Both AP and local administration of ABS have beneficial effects on bone healing in diabetic animals.
Collapse
Affiliation(s)
- E Bulut
- Ondokuz Mayıs University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery , Samsun , Turkey
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Frascino AV, Mantesso A, Corrêa L, Deboni MCZ. Aqueous-ozone irrigation of bone monocortical wounds in hyperglycemic rats. Acta Cir Bras 2014; 28:327-33. [PMID: 23702933 DOI: 10.1590/s0102-86502013000500002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Accepted: 04/14/2013] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To analyze the effects of aqueous ozone irrigation over bone healing in hyperglycemia-induced rats. METHODS Forty-eight male Wistar rats were allocated into Group H (hyperglycemic) or Group N (control). Monocortical bone wound were performed on femurs' anterolateral face. Wounds were treated with a trans-operatory single irrigation of 100ml of aqueous ozone [0.004mg/ml] whereas control groups received 100ml of pure water (Milli-Q®). Histomorphological and histomorphometrical analyses were accomplished after seven, 14 and 21 days. Kruskal-Wallis and Mann-Whitney statistical tests were applied for bone neoformation quantification and assessment. RESULTS Aqueous ozone wounds irrigated revealed diffuse hemorrhage and increased neoformed of blood vessels number. There was no statistical significant difference in bone trabeculae neoformation. After seven and 14 days, the number of osteoclasts was higher in aqueous ozone groups than in those treated with pure water. CONCLUSION Independently of blood glucose levels, aqueous ozone allowed an increase in blood vessels neoformation and osteoclast migration, without affect bone trabeculae neoformation.
Collapse
|
17
|
Ajami E, Mahno E, Mendes V, Bell S, Moineddin R, Davies J. Bone healing and the effect of implant surface topography on osteoconduction in hyperglycemia. Acta Biomater 2014; 10:394-405. [PMID: 24076073 DOI: 10.1016/j.actbio.2013.09.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 09/12/2013] [Accepted: 09/18/2013] [Indexed: 01/13/2023]
Abstract
Dental implant failures that occur clinically for unknown reasons could be related to undiagnosed hyperglycemia. The exact mechanisms that underlie such failures are not known, but there is a general consensus that bone growth is compromised in hyperglycemia. Nevertheless, contradictory findings exist related to peri-implant bone healing in hyperglycemia. We hypothesized that hyperglycemia delays early bone healing by impeding osteoconduction, and that the compromised implant integration due to hyperglycemia could be abrogated by using nanotopographically complex implants. Thus we undertook two parallel experiments, an osteotomy model and a bone in-growth chamber model. The osteotomy model tracked temporal bone healing in the femora of euglycemic and hyperglycemic rats using micro computed tomography (microCT) analysis and histology. The bone in-growth chamber model used implant surfaces of either micro- or nanotopographical complexity and measured bone-implant contact (BIC) using backscattered electron imaging in both metabolic groups. Quantitative microCT analyses on bone volume, trabeculae number and trabeculae connectivity density provided clear evidence that bone healing, both reparative trabecular bone formation and remodeling, was delayed in hyperglycemia, and the reparative bone volume changed with time between metabolic groups. Furthermore, fluorochrome labeling showed evidently less mineralized bone in hyperglycemic than euglycemic animals. An increased probability of osteoconduction was seen on nano-compared with microtopographically complex surfaces, independent of metabolic group. The nanotopographically complex surfaces in hyperglycemia outperformed microtopographically complex surfaces in euglycemic animals. In conclusion, the compromised implant integration in hyperglycemia is abrogated by the addition of nanotopographical features to an underlying microtopographically complex implant surface.
Collapse
|
18
|
Shibuya N, Humphers JM, Fluhman BL, Jupiter DC. Factors associated with nonunion, delayed union, and malunion in foot and ankle surgery in diabetic patients. J Foot Ankle Surg 2013; 52:207-11. [PMID: 23313498 DOI: 10.1053/j.jfas.2012.11.012] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Indexed: 02/03/2023]
Abstract
The incidence of bone healing complications in diabetic patients is believed to be high after foot and ankle surgery. Although the association of hyperglycemia with bone healing complications has been well documented, little clinical information is available to show which diabetes-related comorbidities directly affect bone healing. Our goal was to better understand the risk factors associated with poor bone healing in the diabetic population through an exploratory, observational, retrospective, cohort study. To this end, 165 diabetic patients who had undergone arthrodesis, osteotomy, or fracture reduction were enrolled in the study to assess the risk factors associated with nonunion, delayed union, and malunion after elective and nonelective foot and/or ankle surgery. Bivariate analyses showed that a history of foot ulcer, peripheral neuropathy, and surgery duration were statistically significantly associated with bone healing complications. After adjusting for other covariates, only peripheral neuropathy, surgery duration, and hemoglobin A1c levels >7% were significantly associated statistically with bone healing complications. Of the risk factors we considered, peripheral neuropathy had the strongest association with bone healing complications.
Collapse
Affiliation(s)
- Naohiro Shibuya
- Department of Surgery, Texas A&M Health and Science Center College of Medicine, Temple, TX, USA.
| | | | | | | |
Collapse
|
19
|
de Molon RS, Morais-Camilo JAND, Verzola MHA, Faeda RS, Pepato MT, Marcantonio E. Impact of diabetes mellitus and metabolic control on bone healing around osseointegrated implants: removal torque and histomorphometric analysis in rats. Clin Oral Implants Res 2012; 24:831-7. [DOI: 10.1111/j.1600-0501.2012.02467.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Rafael Scaf de Molon
- Department of Diagnosis and Surgery; UNESP - Univ Estadual Paulista; Araraquara Dental School, Araraquara; São Paulo; Brazil
| | | | - Mario Henrique Arruda Verzola
- Department of Diagnosis and Surgery; UNESP - Univ Estadual Paulista; Araraquara Dental School, Araraquara; São Paulo; Brazil
| | - Rafael Silveira Faeda
- Department of Diagnosis and Surgery; UNESP - Univ Estadual Paulista; Araraquara Dental School, Araraquara; São Paulo; Brazil
| | - Maria Teresa Pepato
- Department of Clinical Analysis; UNESP - Univ Estadual Paulista; Pharmaceutical Science School, Araraquara; São Paulo; Brazil
| | - Elcio Marcantonio
- Department of Diagnosis and Surgery; UNESP - Univ Estadual Paulista; Araraquara Dental School, Araraquara; São Paulo; Brazil
| |
Collapse
|
20
|
Lee SB, Retzepi M, Petrie A, Hakimi AR, Schwarz F, Donos N. The effect of diabetes on bone formation following application of the GBR principle with the use of titanium domes. Clin Oral Implants Res 2012; 24:28-35. [DOI: 10.1111/j.1600-0501.2012.02448.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2012] [Indexed: 12/22/2022]
Affiliation(s)
- Sang-Bok Lee
- Periodontology Unit; Department of Clinical Research; UCL Eastman Dental Institute; London; UK
| | - Maria Retzepi
- Periodontology Unit; Department of Clinical Research; UCL Eastman Dental Institute; London; UK
| | - Aviva Petrie
- Periodontology Unit; Department of Clinical Research; UCL Eastman Dental Institute; London; UK
| | - Ahmad-Reza Hakimi
- Department of Oral Surgery; Heinrich Heine University; Düsseldorf; Germany
| | - Frank Schwarz
- Department of Oral Surgery; Heinrich Heine University; Düsseldorf; Germany
| | - Nikolaos Donos
- Periodontology Unit; Department of Clinical Research; UCL Eastman Dental Institute; London; UK
| |
Collapse
|
21
|
Khandelwal N, Oates TW, Vargas A, Alexander PP, Schoolfield JD, Alex McMahan C. Conventional SLA and chemically modified SLA implants in patients with poorly controlled type 2 Diabetes mellitus - a randomized controlled trial. Clin Oral Implants Res 2011; 24:13-9. [DOI: 10.1111/j.1600-0501.2011.02369.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2011] [Indexed: 11/30/2022]
Affiliation(s)
- Namita Khandelwal
- Graduate School of Biomedical Sciences; University of Texas Health Science Center at San Antonio; San Antonio; TX; USA
| | - Thomas W. Oates
- Department of Periodontics; University of Texas Health Science Center at San Antonio; San Antonio; TX; USA
| | - Adriana Vargas
- Department of Comprehensive Dentistry; University of Texas Health Science Center at San Antonio; San Antonio; TX; USA
| | - Peggy P. Alexander
- Department of Periodontics; University of Texas Health Science Center at San Antonio; San Antonio; TX; USA
| | - John D. Schoolfield
- Department of Periodontics; University of Texas Health Science Center at San Antonio; San Antonio; TX; USA
| | - C. Alex McMahan
- Department of Pathology; University of Texas Health Science Center at San Antonio; San Antonio; TX; USA
| |
Collapse
|
22
|
Chang PC, Chung MC, Wang YP, Chien LY, Lim JC, Liang K, Chong LY, Kuo YP, Chen CH, Chiang HC. Patterns of diabetic periodontal wound repair: a study using micro-computed tomography and immunohistochemistry. J Periodontol 2011; 83:644-52. [PMID: 21966943 DOI: 10.1902/jop.2011.110325] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Diabetes is known to impair wound healing and deteriorate the periodontal condition. There is limited information about the patterns and events associated with periodontal wound repair. In this study, we evaluate the dynamics of periodontal wound repair using micro-computed tomography (microCT) and immunohistochemistry. METHODS Thirty-six male rats were used, and diabetes was induced by streptozotocin. The maxillary first molars were extracted, and a tooth-associated osseous defect was created in the extraction area. Animals were sacrificed after 7, 14, and 21 days. Volumetry and distribution of bone trabeculae were evaluated by microCT imaging. The patterns of healing and collagen alignment were evaluated by histology. Advanced glycation end-product (AGE) deposition and expression of the receptor for AGEs (RAGE), tartrate-resistant acid phosphatase, and proliferating cell nuclear antigen were evaluated by histochemical and immunohistochemical staining. RESULTS Diabetic animals demonstrated a significantly reduced bone volume and trabecular number as well as thinner trabeculae and more trabecular separation in osseous defects. The early stage was characterized by significantly reduced cellular proliferation and prolonged active inflammation without evident bone resorption, whereas delayed recovery of collagen realignment, matrix deposition, and bone turnover was noted in later stages. Although AGEs and RAGE were present during healing in diabetes and controls, a stronger and more persistent level of expression was observed in the group with diabetes CONCLUSIONS Diabetes significantly delayed osseous defect healing by augmenting inflammation, impairing proliferation, and delaying bone resorption. The AGE-RAGE axis can be activated under metabolic disturbance and inflammation.
Collapse
Affiliation(s)
- Po-Chun Chang
- Faculty of Dentistry, National University of Singapore, Singapore, Singapore.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Abbassy MA, Watari I, Soma K. The effect of diabetes mellitus on rat mandibular bone formation and microarchitecture. Eur J Oral Sci 2010; 118:364-9. [DOI: 10.1111/j.1600-0722.2010.00739.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
24
|
Abstract
Diabetes mellitus and, in particular, type 1 diabetes has been associated with impaired osseous wound healing properties. The scope of the present review is to discuss the clinical evidence supporting a higher rate of complications during fracture healing in diabetic patients and the histological evidence indicating impaired potential for intramembranous and endochondral ossification in the presence of uncontrolled experimental diabetes. The article further provides a synthesis of our current understanding of the plausible molecular mechanisms underlying the diabetic bone healing pathophysiology and of the role of insulin treatment in promoting osseous healing in the diabetic status.
Collapse
Affiliation(s)
- M Retzepi
- Periodontology Unit, Clinical Research Division, UCL Eastman Dental Institute, London, UK.
| | | |
Collapse
|
25
|
van Gaalen SM, Kruyt MC, Geuze RE, de Bruijn JD, Alblas J, Dhert WJ. Use of Fluorochrome Labels in In Vivo Bone Tissue Engineering Research. TISSUE ENGINEERING PART B-REVIEWS 2010; 16:209-17. [DOI: 10.1089/ten.teb.2009.0503] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Steven M. van Gaalen
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Moyo C. Kruyt
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ruth E. Geuze
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Joost D. de Bruijn
- Progentix BV, Bilthoven, The Netherlands
- Department of Materials, Queen Mary University of London, London, United Kingdom
| | - Jacqueline Alblas
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wouter J.A. Dhert
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
26
|
Kayal RA, Alblowi J, McKenzie E, Krothapalli N, Silkman L, Gerstenfeld L, Einhorn TA, Graves DT. Diabetes causes the accelerated loss of cartilage during fracture repair which is reversed by insulin treatment. Bone 2009; 44:357-63. [PMID: 19010456 PMCID: PMC2700945 DOI: 10.1016/j.bone.2008.10.042] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Revised: 10/01/2008] [Accepted: 10/14/2008] [Indexed: 11/15/2022]
Abstract
Fracture healing in diabetic individuals and in animal models of diabetes is impaired. To investigate mechanisms by which diabetes may affect fracture healing we focused on the transition from cartilage to bone, a midpoint in the fracture healing process. Femoral fractures were induced in mice rendered diabetic by multiple low dose streptozotocin treatment and compared to matching normoglycemic mice. One group of diabetic animals was treated with slow release insulin to maintain normal serum glucose levels. The results indicate that there was relatively little difference in the initial formation of the fracture callus on day 10. However, on day 16 the diabetic group had significantly smaller callus, greater loss of cartilage and enhanced osteoclastogenesis that was normalized by treatment with insulin when assessed by histomorphometric analysis. Chondrocyte apoptosis was significantly higher in diabetic mice and this increase was blocked by insulin. These changes were accompanied by diabetes-increased mRNA levels of RANKL, TNF-alpha, and ADAMTS-4 and -5 measured by real-time PCR, which was reversed by insulin treatment. On days 16 and 22 bone formation within the callus of diabetic mice was significantly less than the normoglycemic and brought to normal levels by insulin treatment. These results suggest that a significant effect of diabetes on fracture healing is increased chondrocyte apoptosis and osteoclastogenesis that accelerates the loss of cartilage and reduces the anlage for endochondral bone formation during fracture repair. That insulin reverses these effects demonstrates that they are directly related to the diabetic condition.
Collapse
Affiliation(s)
- Rayyan A. Kayal
- Department of Periodontology and Oral Biology, Boston University School of Dental Medicine, Boston, MA 02118, USA
| | - Jazia Alblowi
- Department of Periodontology and Oral Biology, Boston University School of Dental Medicine, Boston, MA 02118, USA
| | - Erin McKenzie
- Department of Periodontology and Oral Biology, Boston University School of Dental Medicine, Boston, MA 02118, USA
| | - Nanarao Krothapalli
- Department of Periodontology and Oral Biology, Boston University School of Dental Medicine, Boston, MA 02118, USA
| | - Lee Silkman
- Department of Orthopedic Surgery, Boston University School of Medicine, Boston, MA 02118, USA
| | - Louis Gerstenfeld
- Department of Orthopedic Surgery, Boston University School of Medicine, Boston, MA 02118, USA
| | - Thomas A. Einhorn
- Department of Orthopedic Surgery, Boston University School of Medicine, Boston, MA 02118, USA
| | - Dana T. Graves
- Department of Periodontology and Oral Biology, Boston University School of Dental Medicine, Boston, MA 02118, USA
- Corresponding author. E-mail address: (D.T. Graves)
| |
Collapse
|
27
|
de Amorim FPLG, Ornelas SS, Diniz SF, Batista AC, da Silva TA. Imbalance of RANK, RANKL and OPG expression during tibial fracture repair in diabetic rats. J Mol Histol 2008; 39:401-8. [DOI: 10.1007/s10735-008-9178-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2008] [Accepted: 06/11/2008] [Indexed: 10/21/2022]
|
28
|
Diniz S, Amorim F, Cavalcante-Neto F, Bocca A, Batista A, Simm G, Silva T. Alloxan-induced diabetes delays repair in a rat model of closed tibial fracture. Braz J Med Biol Res 2008; 41:373-9. [DOI: 10.1590/s0100-879x2008005000014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Accepted: 04/14/2008] [Indexed: 11/21/2022] Open
Affiliation(s)
| | | | | | | | | | | | - T.A. Silva
- Universidade Federal de Minas Gerais, Brasil
| |
Collapse
|
29
|
Casap N, Nimri S, Ziv E, Sela J, Samuni Y. Type 2 diabetes has minimal effect on osseointegration of titanium implants in Psammomys obesus. Clin Oral Implants Res 2008; 19:458-64. [PMID: 18371104 DOI: 10.1111/j.1600-0501.2007.01495.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Dental implants are routinely used with high success rates in generally healthy individuals. In contrast, their use in patients with uncontrolled diabetes mellitus (DM) remains controversial as altered bone healing around implants has been reported. The majority of reports addressing the issue of osseointegration of implants in animals were performed in beta-cell cytotoxic-induced Type I diabetes. In this study, we assessed the osseointegration of implants in Gerbil Psammomys obesus, a model of nutritionally induced Type 2 DM. MATERIALS AND METHODS Titanium implants were inserted into the tibial medullary space of 140 male diabetic and control animals. One, 2, 4, and 8 weeks after implantation the tibias were removed for histomorphometric evaluation, which included trabecular bone volumes (TBV) and osseointegration. RESULTS Two weeks following implantation, diabetic animals had slightly less mature bone when compared with control animals. This distinction was not present 4 weeks after implantation. Interestingly, no correlation was found between ossetointegration or TBV and glucose and insulin levels. Furthermore, no difference in osseointegration and TBV values was seen between the groups. The heterogeneity of serum glucose and insulin levels in this model and the possible role of insulin in bone metabolism are discussed. CONCLUSIONS No significant difference in osseointegration and TBV was seen between diabetic and control P. obesus, a model of nutritionally induced Type 2 DM.
Collapse
Affiliation(s)
- Nardy Casap
- Department of Oral and Maxillofacial Surgery and Faculty of Dental Medicine, Hebrew University Hadassah, Jerusalem, Israel
| | | | | | | | | |
Collapse
|
30
|
Garris DR, Burkemper KM, Garris BL. Influences of diabetes (db/db), obese (ob/ob) and dystrophic (dy/dy) genotype mutations on hind limb bone maturation: a morphometric, radiological and cytochemical indices analysis. Diabetes Obes Metab 2007; 9:311-22. [PMID: 17391157 DOI: 10.1111/j.1463-1326.2006.00603.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The influences of single-gene missense mutations expressing diabetes (db/db), obese (ob/ob) or dystrophia (dy/dy) dysregulated metabolic syndromes on hind limb bone maturation and cytodevelopment in C57BL/KsJ mice were evaluated by radiological, macro- and cytomorphometric analysis of the resulting variances in os coxae, femur and tibia osteodevelopment indices relative to control parameters between 8 and 16 weeks of age. Associated with obesity and hyperglycaemic/hyperinsulinaemic states, both db/db and ob/ob mutants demonstrated significant suppression of hind limb maturation (length) and cytodensity indices relative to control growth parameters. By contrast, skeletal growth suppression induced by dy/dy mutation expression was associated with lean body mass and normoglycaemic/hypoinsulinaemic systemic endometabolic indices. In both db/db and ob/ob mutation syndromes, osteovascular, -interstitial and -cytolipidaemia were prominent cytochemical aberrations of the osteopaenic states relative to the dyslipidaemia/fibrodysplasia characteristic of dy/dy osteomaturation. Between 8 and 16 weeks of age, both ob/ob and db/db groups demonstrated extensive cortical interstitial (laminal) osteolipidaemia and suppressed cytodensities compared to control indices. These data demonstrate that the abnormal hyperglycaemic/hyperinsulinaemic endometabolic states associated with the expression of db/db and ob/ob genomutations promote extensive lipidaemia-induced osteopaenia, compromising hind limb osteomaturation and cytodensity indices, as compared to the hyperfibritic osteopaenia characteristic of dy/dy mutation syndromes. Recognized therapeutic modulation of the hypercytolipidaemic component of diabetes-obesity syndromes may prove to be effective towards amelioration of the deleterious influences of these expressed hyperglycaemic, dysregulated lipometabolic conditions on osteomaturation and cytodevelopment.
Collapse
Affiliation(s)
- D R Garris
- Division of Cell Biology and Biophysics, Schools of Biological Sciences and Medicine, University of Missouri-Kansas City, Kansas City, MO 64110, USA.
| | | | | |
Collapse
|
31
|
Zhang SQ, Chen GH, Lu WL, Zhang Q. Effects on the bones of vanadyl acetylacetonate by oral administration: a comparison study in diabetic rats. J Bone Miner Metab 2007; 25:293-301. [PMID: 17704994 DOI: 10.1007/s00774-007-0759-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2007] [Accepted: 03/19/2007] [Indexed: 12/13/2022]
Abstract
Oral delivery, rather than parenteral administration, would be beneficial for treating diabetic mellitus owing to the need for a long-term regimen. The objectives of this study were to evaluate oral delivery tolerance and the effects on the bone of accumulated vanadium following the long-term administration of vanadyl acetylacetonate (VAC). Normal and diabetic rats were intragastrically administered VAC at a dose of 3 mg vanadium/kg body weight once daily for 35 consecutive days. VAC did not cause any obvious signs of diarrhea, any changes in kidney or liver, or deaths in any group. The phosphate levels in the bone were slightly increased, and the calcium levels in the bone were not obviously changed as compared with those of the rat group not receiving VAC. After administration of VAC, the decreased ultimate strength, trabecular thickness, mineral apposition rate, and plasma osteocalcin in diabetic rats were either improved or normalized, but reduced bone mineral density (BMD) in diabetic rats was not improved. None of the parameters evaluated in normal rats were altered. The results indicate that the oral VAC is tolerated and benefits the diabetic osteopathy of rats, but seems not to influence the bone of normal rats. They also suggest that VAC improves diabetes-related bone disorders, primarily by improving the diabetic state.
Collapse
Affiliation(s)
- Shuang-Qing Zhang
- School of Pharmaceutical Sciences and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, 38 Xueyuan Road, Beijing 100083, China
| | | | | | | |
Collapse
|
32
|
Gopalakrishnan V, Arunakaran J, Aruldhas MM, Srinivasan N. Effects of streptozotocin-induced diabetes mellitus on some bone turnover markers in the vertebrae of ovary-intact and ovariectomized adult rats. Biochem Cell Biol 2006; 84:728-36. [PMID: 17167536 DOI: 10.1139/o06-066] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Diabetes mellitus and estrogen deficit are known causes of osteopenia in animal models as well as in humans. In the present work, the combined effect of ovariectomy and diabetes was investigated. Diabetes was induced in ovary-intact and ovariectomized female Wistar rats with a single injection (50 mg/kg body weight, i.p.) of streptozotocin. The rats were administered insulin (I) daily or 17-β estradiol (E2) on alternate days for a period of 35 days and sacrificed. Serum calcium (Ca2+), phosphorus (P), alkaline phosphatase (ALP), tartrate-resistant acid phosphatase (TRAP), vertebral ALP, collagen, and glycosaminoglycans were estimated. The levels of serum Ca2+and P increased in diabetic rats, but decreased after I or E2treatments. Serum ALP and TRAP activity increased in the ovary-intact and ovariectomized diabetic rats. Vertebral ALP activity increased in ovariectomized diabetic rats, but decreased in diabetic rats, which were treated with I or E2. In the vertebrae, TRAP activity was elevated as a result of diabetes, but this was prevented by insulin or estradiol. Diabetes induced a decrease in total collagen in the vertebrae, while I or E2treatment induced an increase. The levels of chondroitin sulphate and heparan sulphate decreased significantly in the vertebrae of both ovary-intact and ovariectomized diabetic rats, while hyaluronic acid increased. In conclusion, diabetes and ovariectomy each seem to affect the process of matrix formation and mineralization in the bone, and this is aggravated by the combination of diabetes and ovariectomy. The effects of I and E2were similar, and both hormones reversed the changes brought about by diabetes.
Collapse
Affiliation(s)
- V Gopalakrishnan
- Department of endocrinology, Dr. Alm Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani, Chennai 600 113, India
| | | | | | | |
Collapse
|
33
|
Burkemper KM, Garris DR. Influences of obese (ob/ob) and diabetes (db/db) genotype mutations on lumber vertebral radiological and morphometric indices: skeletal deformation associated with dysregulated systemic glucometabolism. BMC Musculoskelet Disord 2006; 7:10. [PMID: 16451732 PMCID: PMC1388216 DOI: 10.1186/1471-2474-7-10] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2005] [Accepted: 02/01/2006] [Indexed: 11/17/2022] Open
Abstract
Background Both diabetes and obesity syndromes are recognized to promote lumbar vertebral instability, premature osteodegeneration, exacerbate progressive osteoporosis and increase the propensity towards vertebral degeneration, instability and deformation in humans. Methods The influences of single-gene missense mutations, expressing either diabetes (db/db) or obese (ob/ob) metabolic syndromes on vertebral maturation and development in C57BL/KsJ mice were evaluated by radiological and macro-morphometric analysis of the resulting variances in osteodevelopment indices relative to control parameters between 8 and 16 weeks of age (syndrome onset @ 4 weeks), and the influences of low-dose 17-B-estradiol therapy on vertebral growth expression evaluated. Results Associated with the indicative genotypic obesity and hyper-glycemic/-insulinemic states, both db/db and ob/ob mutants demonstrated a significant (P ≤ 0.05) elongation of total lumbar vertebrae column (VC) regional length, and individual lumbar vertebrae (LV1-5) lengths, relative to control VC and LV parameters. In contrast, LV1-5 width indices were suppressed in db/db and ob/ob mutants relative to control LV growth rates. Between 8 and 16 weeks of age, the suppressed LV1-5 width indices were sustained in both genotype mutant groups relative to control osteomaturation rates. The severity of LV1-5 width osteosuppression correlated with the severe systemic hyperglycemic and hypertriglyceridemic conditions sustained in ob/ob and db/db mutants. Low-dose 17-B-estradiol therapy (E2-HRx: 1.0 ug/ 0.1 ml oil s.c/3.5 days), initiated at 4 weeks of age (i.e., initial onset phase of db/db and ob/ob expressions) re-established control LV 1–5 width indices without influencing VC or LV lengths in db/db groups. Conclusion These data demonstrate that the abnormal systemic endometabolic states associated with the expression of db/db and ob/ob genomutation syndromes suppress LV 1–5 width osteomaturation rates, but enhanced development related VC and LV length expression, relative to control indices in a progressive manner similar to recognized human metabolic syndrome conditions. Therapeutic E2 modulation of the hyperglycemic component of diabetes-obesity syndrome protected the regional LV from the mutation-induced osteopenic width-growth suppression. These data suggest that these genotype mutation models may prove valuable for the evaluation of therapeutic methodologies suitable for the treatment of human diabetes- or obesity-influenced, LV degeneration-linked human conditions, which demonstrate amelioration from conventional replacement therapies following diagnosis of systemic syndrome-induced LV osteomaturation-associated deformations.
Collapse
Affiliation(s)
- Katherine M Burkemper
- Division of Cell Biology and Biophysics, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, Missouri 64110 USA
| | - David R Garris
- Division of Cell Biology and Biophysics, School of Biological Sciences, University of Missouri-Kansas City, Kansas City, Missouri 64110 USA
| |
Collapse
|
34
|
Thrailkill KM, Lumpkin CK, Bunn RC, Kemp SF, Fowlkes JL. Is insulin an anabolic agent in bone? Dissecting the diabetic bone for clues. Am J Physiol Endocrinol Metab 2005; 289:E735-45. [PMID: 16215165 PMCID: PMC2387001 DOI: 10.1152/ajpendo.00159.2005] [Citation(s) in RCA: 335] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diabetic osteoporosis is increasingly recognized as a significant comorbidity of type 1 diabetes mellitus. In contrast, type 2 diabetes mellitus is more commonly associated with modest increases in bone mineral density for age. Despite this dichotomy, clinical, in vivo, and in vitro data uniformly support the concept that new bone formation as well as bone microarchitectural integrity are altered in the diabetic state, leading to an increased risk for fragility fracture and inadequate bone regeneration following injury. In this review, we examine the contribution that insulin, as a potential anabolic agent in bone, may make to the pathophysiology of diabetic bone disease. Specifically, we have assimilated human and animal data examining the effects of endogenous insulin production, exogenous insulin administration, insulin sensitivity, and insulin signaling on bone. In so doing, we present evidence that insulin, acting as an anabolic agent in bone, can preserve and increase bone density and bone strength, presumably through direct and/or indirect effects on bone formation.
Collapse
MESH Headings
- Animals
- Bone Density/drug effects
- Bone Density/physiology
- Bone Diseases, Metabolic/metabolism
- Bone Diseases, Metabolic/pathology
- Bone Remodeling/drug effects
- Bone Remodeling/physiology
- Bone and Bones/drug effects
- Bone and Bones/metabolism
- Bone and Bones/pathology
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Fractures, Bone/etiology
- Fractures, Bone/metabolism
- Fractures, Bone/pathology
- Humans
- Insulin/pharmacology
- Insulin/physiology
- Osteoporosis/etiology
- Osteoporosis/metabolism
- Osteoporosis/pathology
Collapse
Affiliation(s)
- Kathryn M Thrailkill
- Department of Pediatrics, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, 800 Marshall St., Springer Bldg., Mail Slot 512-6, Little Rock, AR 72202, USA.
| | | | | | | | | |
Collapse
|
35
|
Pautke C, Vogt S, Tischer T, Wexel G, Deppe H, Milz S, Schieker M, Kolk A. Polychrome labeling of bone with seven different fluorochromes: enhancing fluorochrome discrimination by spectral image analysis. Bone 2005; 37:441-5. [PMID: 16046209 DOI: 10.1016/j.bone.2005.05.008] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2005] [Revised: 05/01/2005] [Accepted: 05/20/2005] [Indexed: 11/26/2022]
Abstract
Bone formation and remodeling in vivo can be assessed by polychrome labeling using calcium-binding fluorescent dyes. The number of fluorochromes, however, limits this technique due to the fact that with increasing number, fluorescent spectra inevitably overlap, which makes discrimination more difficult. In order to enhance discrimination, we performed spectral image analysis. Non-critical size defects of the femur of male Wistar rats served as a model for bone formation. Eight different fluorochromes (calcein blue, xylenol orange, calcein, alizarine complexone, doxycycline, rolitetracycline, hematoporphyrin, and BAPTA) were administered sequentially subcutaneously every third day starting at day 4 after surgery. Following, bone specimen were embedded in methylmethacrylate and analyzed by spectral image acquisition using a Sagnac type interferometer (ASI, Israel). Seven of the eight applied fluorochromes could be resolved using spectral image examination. With BAPTA, we present a new fluorochrome suitable for bone labeling. Due to the superior sensitivity of the spectral image acquisition, the thickness of the bone sections could be reduced so that 5 mum thick sections could be analyzed. Spectral decomposition and subsequent linear unmixing allows depiction of each individual fluorochrome without interference of any other, enabling a reliable and superior morphometric analysis of labeled regions.
Collapse
Affiliation(s)
- Christoph Pautke
- Department of Oral and Cranio-Maxillofacial Surgery, Klinikum rechts der Isar, Technical University of Munich (TUM), Ismaninger Str. 22, D-81675 Munich, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Klöting N, Follak N, Klöting I. Is there an autoimmune process in bone? Gene expression studies in diabetic and nondiabetic BB rats as well as BB rat-related and -unrelated rat strains. Physiol Genomics 2005; 24:59-64. [PMID: 16189279 DOI: 10.1152/physiolgenomics.00094.2005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
It is well known that type 1 diabetes is associated with a decrease in bone mass and delayed healing of fractures in human and in animal models of type 1 diabetes. Using well- and poorly compensated diabetic BB/O(ttawa) K(arlsburg) rats spontaneously developing insulin-dependent type 1 diabetes, it was recently shown that, in contrast to all other tissues studied, bone is most influenced by metabolic state and seems to be regulated in a manner different from other organs. Therefore, we studied the expression of additional genes (Bmp-1, Bmp-4, Vegf, Bglap, Il-1b, Infg, Tnfa, Calca, Sp1, Yy1) in bone of nondiabetic BB rats compared with newly diagnosed and well- and poorly compensated diabetic rats as well as two nondiabetes-prone congenic BB.SHR rats, BB rat-related (WOKW) and -unrelated rat strains (F344). Six males of each group were euthanized, the tibial bone was removed, and total RNA was extracted, transcribed in complementary DNA, and used for real-time PCR. In a comparison of nondiabetic with diabetic groups, the relative gene expression was reduced by >80% in newly diagnosed and in well-compensated diabetic BB/OK rats. The gene expression in poorly compensated rats increased significantly in 7 of 10 genes and was comparable with those of nondiabetic BB/OK rats. In a comparison of gene expression between diabetes-prone BB/OK and nondiabetes-prone BB.1K, BB.4S, WOKW, and F344 rats, there were no significant differences between newly diagnosed and well-compensated BB/OK diabetic rats and nondiabetic BB.1K, BB.4S, WOKW, and F344 rats. On the basis of these findings, we concluded that spontaneous diabetes influences bone gene expression in BB/OK rats, which may be attributed to the genetically determined autoimmune process not only affecting pancreatic beta-cells but also bone formation and resorption.
Collapse
Affiliation(s)
- Nora Klöting
- Department of Laboratory Animal Science, Medical Faculty, University of Greifswald, Germany
| | | | | |
Collapse
|
37
|
Iwasaka K, Negishi J, Yamaji K, Kawanami M. Influence of Streptozotocin-induced Diabetes on New Bone Formation by rhBMP-2. ACTA ACUST UNITED AC 2004. [DOI: 10.2329/perio.46.266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|