1
|
Calciolari E, Corbella S, Gkranias N, Viganó M, Sculean A, Donos N. Efficacy of biomaterials for lateral bone augmentation performed with guided bone regeneration. A network meta-analysis. Periodontol 2000 2023; 93:77-106. [PMID: 37752820 DOI: 10.1111/prd.12531] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023]
Abstract
Bone regeneration is often required concomitant with implant placement to treat a bone fenestration, a dehiscence, and for contouring. This systematic review assessed the impact of different biomaterials employed for guided bone regeneration (GBR) simultaneous to implant placement on the stability of radiographic peri-implant bone levels at ≥12 months of follow-up (focused question 1), as well as on bone defect dimension (width/height) changes at re-assessment after ≥4 months (focused question 2). Only randomized controlled trials (RCTs) and controlled clinical trials (CCTs) that compared different biomaterials for GBR were considered. A Bayesian network meta-analysis (NMA) was performed using a random-effects model. A ranking probability between treatments was obtained, as well as an estimation of the surface under the cumulative ranking value (SUCRA). Overall, whenever the biological principle of GBR was followed, regeneration occurred in a predictable way, irrespective of the type of biomaterial used. A lower efficacy of GBR treatments was suggested for initially large defects, despite the trend did not reach statistical significance. Regardless of the biomaterial employed, a certain resorption of the augmented bone was observed overtime. While GBR was shown to be a safe and predictable treatment, several complications (including exposure, infection, and soft tissue dehiscence) were reported, which tend to be higher when using cross-linked collagen membranes.
Collapse
Affiliation(s)
- Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Dental School, Department of Medicine and Dentistry, Università di Parma, Parma, Italy
| | - Stefano Corbella
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy
- IRCCS, Ospedale Galeazzi Sant'Ambrogio, Milan, Italy
| | - Nikolaos Gkranias
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Marco Viganó
- Medacta International SA, Castel San Pietro, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
2
|
Donos N, Akcali A, Padhye N, Sculean A, Calciolari E. Bone regeneration in implant dentistry: Which are the factors affecting the clinical outcome? Periodontol 2000 2023; 93:26-55. [PMID: 37615306 DOI: 10.1111/prd.12518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 07/08/2023] [Accepted: 08/01/2023] [Indexed: 08/25/2023]
Abstract
The key factors that are needed for bone regeneration to take place include cells (osteoprogenitor and immune-inflammatory cells), a scaffold (blood clot) that facilitates the deposition of the bone matrix, signaling molecules, blood supply, and mechanical stability. However, even when these principles are met, the overall amount of regenerated bone, its stability over time and the incidence of complications may significantly vary. This manuscript provides a critical review on the main local and systemic factors that may have an impact on bone regeneration, trying to focus, whenever possible, on bone regeneration simultaneous to implant placement to treat bone dehiscence/fenestration defects or for bone contouring. In the future, it is likely that bone tissue engineering will change our approach to bone regeneration in implant dentistry by replacing the current biomaterials with osteoinductive scaffolds combined with cells and mechanical/soluble factors and by employing immunomodulatory materials that can both modulate the immune response and control other bone regeneration processes such as osteogenesis, osteoclastogenesis, or inflammation. However, there are currently important knowledge gaps on the biology of osseous formation and on the factors that can influence it that require further investigation. It is recommended that future studies should combine traditional clinical and radiographic assessments with non-invasive imaging and with patient-reported outcome measures. We also envisage that the integration of multi-omics approaches will help uncover the mechanisms responsible for the variability in regenerative outcomes observed in clinical practice.
Collapse
Affiliation(s)
- Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Aliye Akcali
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Periodontology, Faculty of Dentistry, Dokuz Eylul University, Izmir, Turkey
| | - Ninad Padhye
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Medicine and Dentistry, Dental School, University of Parma, Parma, Italy
| |
Collapse
|
3
|
Mishchenko O, Yanovska A, Kosinov O, Maksymov D, Moskalenko R, Ramanavicius A, Pogorielov M. Synthetic Calcium-Phosphate Materials for Bone Grafting. Polymers (Basel) 2023; 15:3822. [PMID: 37765676 PMCID: PMC10536599 DOI: 10.3390/polym15183822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Synthetic bone grafting materials play a significant role in various medical applications involving bone regeneration and repair. Their ability to mimic the properties of natural bone and promote the healing process has contributed to their growing relevance. While calcium-phosphates and their composites with various polymers and biopolymers are widely used in clinical and experimental research, the diverse range of available polymer-based materials poses challenges in selecting the most suitable grafts for successful bone repair. This review aims to address the fundamental issues of bone biology and regeneration while providing a clear perspective on the principles guiding the development of synthetic materials. In this study, we delve into the basic principles underlying the creation of synthetic bone composites and explore the mechanisms of formation for biologically important complexes and structures associated with the various constituent parts of these materials. Additionally, we offer comprehensive information on the application of biologically active substances to enhance the properties and bioactivity of synthetic bone grafting materials. By presenting these insights, our review enables a deeper understanding of the regeneration processes facilitated by the application of synthetic bone composites.
Collapse
Affiliation(s)
- Oleg Mishchenko
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical and Pharmaceutical University, 26, Prosp. Mayakovskogo, 69035 Zaporizhzhia, Ukraine; (O.M.); (O.K.); (D.M.)
| | - Anna Yanovska
- Theoretical and Applied Chemistry Department, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine
| | - Oleksii Kosinov
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical and Pharmaceutical University, 26, Prosp. Mayakovskogo, 69035 Zaporizhzhia, Ukraine; (O.M.); (O.K.); (D.M.)
| | - Denys Maksymov
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical and Pharmaceutical University, 26, Prosp. Mayakovskogo, 69035 Zaporizhzhia, Ukraine; (O.M.); (O.K.); (D.M.)
| | - Roman Moskalenko
- Department of Pathology, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine;
| | - Arunas Ramanavicius
- NanoTechnas-Center of Nanotechnology and Materials Science, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
| | - Maksym Pogorielov
- Biomedical Research Centre, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine;
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas Iela 3, LV-1004 Riga, Latvia
| |
Collapse
|
4
|
Bornes RS, Montero J, Correia ARM, Rosa NRDN. Use of bioinformatic strategies as a predictive tool in implant-supported oral rehabilitation: A scoping review. J Prosthet Dent 2023; 129:322.e1-322.e8. [PMID: 36710172 DOI: 10.1016/j.prosdent.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 01/29/2023]
Abstract
STATEMENT OF PROBLEM The use of bioinformatic strategies is growing in dental implant protocols. The current expansion of Omics sciences and artificial intelligence (AI) algorithms in implant dentistry applications have not been documented and analyzed as a predictive tool for the success of dental implants. PURPOSE The purpose of this scoping review was to analyze how artificial intelligence algorithms and Omics technologies are being applied in the field of oral implantology as a predictive tool for dental implant success. MATERIAL AND METHODS The Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews checklist was followed. A search strategy was created at PubMed and Web of Science to answer the question "How is bioinformatics being applied in the area of oral implantology as a predictive tool for implant success?" RESULTS Thirteen articles were included in this review. Only 3 applied bioinformatic models combining AI algorithms and Omics technologies. These studies highlighted 2 key points for the creation of precision medicine: deep population phenotyping and the integration of Omics sciences in clinical protocols. Most of the studies identified applied AI only in the identification and classification of implant systems, quantification of peri-implant bone loss, and 3-dimensional bone analysis, planning implant placement. CONCLUSIONS The conventional criteria currently used as a technique for the diagnosis and monitoring of dental implants are insufficient and have low accuracy. Models that apply AI algorithms combined with precision methodologies-biomarkers-are extremely useful in the creation of precision medicine, allowing medical dentists to forecast the success of the implant. Tools that integrate the different types of data, including imaging, molecular, risk factor, and implant characteristics, are needed to make a more accurate and personalized prediction of implant success.
Collapse
Affiliation(s)
- Rita Silva Bornes
- Guest Lecturer, Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal.
| | - Javier Montero
- Full professor in Prosthodontics, Department of Surgery, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - André Ricardo Maia Correia
- Assistant Professor, Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| | - Nuno Ricardo das Neves Rosa
- Assistant Professor, Universidade Católica Portuguesa, Faculty of Dental Medicine (FMD), Center for Interdisciplinary Research in Health (CIIS), Viseu, Portugal
| |
Collapse
|
5
|
Yang YJ, Li Y, Gao L. Postmenopausal osteoporosis: Effect of moderate-intensity treadmill exercise on bone proteomics in ovariectomized rats. Front Surg 2023; 9:1000464. [PMID: 36684175 PMCID: PMC9852312 DOI: 10.3389/fsurg.2022.1000464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/13/2022] [Indexed: 01/09/2023] Open
Abstract
Objectives This study aimed to identify the key proteins in the bone mass of ovariectomized (OVX) rats after a period of regular moderate-intensity treadmill exercise and to investigate their effects using tag mass spectrometry and quantitative proteomics with a view to improving the understanding and treatment of postmenopausal osteoporosis. Methods Sixty three-month-old female Sprague-Dawley tats of specific-pathogen-free grade were randomly and equally divided into a sham operation group, ovariectomized group (OVX) and ovariectomized combined exercise (OVX + EX) group, and the latter took moderate-intensity treadmill exercise for 17 weeks. After this period of time, body composition and bone density were measured using dual-energy x-ray absorptiometry, and serum bone metabolism indicators were measured using an enzyme immunoassay. In addition, the bone microstructure was examined using micro-computed tomography and scanning of the femur, and femur proteins were subject to proteomic analysis. Results Compared with the rats in the OVX group, the bone metabolism indicators in the OVX + EX group decreased significantly, femur bone density increased significantly, the number of the trabeculae increased, and continuity was higher. In the OVX + EX group, 17 proteins were significantly upregulated and 33 significantly downregulated. The main gene ontology and signaling pathways enriched by the proteins were identified as the tumor necrosis factor-mediated signaling pathways. The protein-protein interaction network identified the key proteins, and the correlation analysis of these proteins and the bone parameters found histone deacetylase 8(HDAC8) and leucine-rich transmembrane and O-methyltransferase domain containing (LRTOMT) and trimethylguanosine synthase 1(TGS1) and ankyrin repeat domain 46(ANKRD46) to be the key targets of exercise in relation to postmenopausal osteoporosis. Conclusion Moderate-intensity treadmill exercise significantly improved the bone mass of OVX rats, and differentially expressed proteins, such as HDAC8 and LRTOMT and TGS1 and ANKRD46, could be the target of moderate-intensity treadmill exercise.
Collapse
|
6
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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
|
7
|
Gao X, Al-Baadani MA, Wu M, Tong N, Shen X, Ding X, Liu J. Study on the Local Anti-Osteoporosis Effect of Polaprezinc-Loaded Antioxidant Electrospun Membrane. Int J Nanomedicine 2022; 17:17-29. [PMID: 35023917 PMCID: PMC8743381 DOI: 10.2147/ijn.s341216] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/22/2021] [Indexed: 12/22/2022] Open
Abstract
Background Compared with the healthy condition, osteoporotic bone defects are often accompanied by poor osteogenesis and excessive reactive oxygen species (ROS), which pose serious challenges to bone augmentation and repair by normal resorbable guided bone regeneration (GBR) membrane. Purpose Polaprezinc (PZ) was loaded into polycaprolactone/gelatin (PG) hybrid electrospun nanofibers to fabricate a GBR membrane with antioxidant and osteogenesis ability. Methods A series of physicochemical characterization were performed by scanning electron microscopy, Fourier-transform infrared spectroscopy, and water contact angle measurement. In addition to membrane degradation and PZ release detection, membranes were tested for cell viability, differentiation, and protein expression in MC3T3-E1 cells by CCK8, alkaline phosphatase activity, mineralization, and Western blotting assays. The membrane osteogenic capacity in cranial bone defects was studied by micro-CT in vivo. Results PZ was successfully doped into the PCL/GEL nanofibers to form a hydrophilic GBR membrane. The cumulative release of PZ was closely related to the membrane degradation behavior. PG/0.4%PZ membranes produced the best protective effect on cell proliferation/differentiation under oxidative stress microenvironment; however, the PG/0.8%PZ membrane was cytotoxic. Western blotting demonstrated that the PZ-loaded membrane upregulated the Nrf2/HO-1/SOD1 signaling molecules in a concentration-dependent manner. In addition, micro-CT results showed an abundant formation of new bones in the PG/0.4%PZ group compared to the PG group. Conclusion PZ-loaded degradable PG membranes (especially PG/0.4%PZ) have great potential to accelerate bone regeneration in oxidative stress-related diseases.
Collapse
Affiliation(s)
- Xue Gao
- Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325016, People's Republic of China
| | - Mohammed A Al-Baadani
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Minjie Wu
- Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325016, People's Republic of China
| | - Ningyang Tong
- Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325016, People's Republic of China
| | - Xinkun Shen
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Xi Ding
- Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325016, People's Republic of China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| |
Collapse
|
8
|
Mardas N, Dereka X, Stavropoulos A, Patel M, Donos N. The role of strontium ranelate and guided bone regeneration in osteoporotic and healthy conditions. J Periodontal Res 2020; 56:330-338. [PMID: 33368312 DOI: 10.1111/jre.12825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/03/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND/ OBJECTIVES SR is a chemical agent developed for the treatment of osteoporosis. In vitro, SR enhanced replication of osteoprogenitor cells and bone formation. In vivo, in ovariectomized rats SR prevented the biomechanical deterioration of bone while in non-ovariectomized rats, enhanced bone architecture and increased trabecular and cortical bone mass. The aim of this study was to evaluate the effect of SR on bone healing of calvarial critical size defects treated with a deproteinized bovine bone mineral (DBBM) and a collagen barrier (CM), in healthy and osteoporotic rats. MATERIAL AND METHODS Sixty-four, 4-month-old Wistar female rats were used. Osteoporosis was induced by ovariectomy and calcium-deficient diet in half of them. Sixteen ovariectomized (OSR) and 16 healthy (HSR) rats were treated with SR while no medication was administered in the remaining 16 healthy (H) and 16 ovariectomized (O) rats. At 6 weeks after ovariectomy, a 5mm defect was created in each parietal bone of every animal. One defect was treated with DBBM and CM, while the contralateral was left untreated. Qualitative and quantitative histological analysis was performed at 30 and 60 days of healing. A generalized estimating equations test was performed to evaluate the effect of SR and osteoporosis, on new bone formation (NB). RESULTS After 30 days of healing, NB in the untreated defects was 3.4%±1.7%, 4.3%±6.2%, 3.2±4.5%, 15.9±23.5% in O, OSR, H and HSR groups, respectively; after 60 days, NB was 4.7%±4.3%, 11.3%±7%, 7.1%±13.2, 12.1%±13.5%, respectively. In the GBR-treated defects, after 30 days, NB was 2.6%±1.4%, 2.4%±1.6%, 4.5%±4.1%, 10.3%±14.4% in O, OSR, H and HSR groups, respectively; after 60 days, NB was 2.2%±1.6%, 4.3%±4.2%, 7%±5.1%, 10.8%±17.4%, respectively. Osteoporosis (p=0.008) and the absence of strontium ranelate treatment (p=0.01) had a negative impact on NB. CONCLUSION SR may promote bone formation in calvarial defects in healthy and osteoporotic rats, albeit in a moderate extent.
Collapse
Affiliation(s)
- Nikos Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK
| | - Xanthippi Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas Stavropoulos
- Division of Regenerative Dental Medicine and Periodontology, CUMD, University of Geneva, Geneva, Switzerland.,Department of Periodontology, Malmö University, Malmö, Sweden
| | | | - Nikolaos Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK
| |
Collapse
|
9
|
Calciolari E, Donos N. Proteomic and Transcriptomic Approaches for Studying Bone Regeneration in Health and Systemically Compromised Conditions. Proteomics Clin Appl 2020; 14:e1900084. [PMID: 32131137 DOI: 10.1002/prca.201900084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 02/05/2020] [Indexed: 01/04/2023]
Abstract
Bone regeneration is a complex biological process, where the molecular mechanisms are only partially understood. In an ageing population, where the prevalence of chronic diseases with an impact on bone metabolism is increasing, it becomes crucial to identify new strategies that would improve regenerative outcomes also in medically compromised patients. In this context, omics are demonstrating a great potential, as they offer new insights on the molecular mechanisms regulating physiologic/pathologic bone healing and, at the same time, allow the identification of new diagnostic and therapeutic targets. This review provides an overview on the current evidence on the use of transcriptomic and proteomic approaches in bone regeneration research, particularly in relation to type 1 diabetes and osteoporosis, and discusses future scenarios and potential benefits and limitations on the integration of multi-omics. It is suggested that future research will leverage the synergy of omics with statistical modeling and bioinformatics to prompt the understanding of the biology underpinning bone formation in health and medically compromised conditions. With an eye toward personalized medicine, new strategies combining the mining of large datasets and bioinformatic data with a detailed characterization of relevant phenotypes will need to be pursued to further the understanding of disease mechanisms.
Collapse
Affiliation(s)
- Elena Calciolari
- Centre for Oral Immunobiology and Regenerative Medicine & Centre for Oral Clinical Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK.,Department of Medicine and Surgery, School of Dental Medicine, University of Parma, via Gramsci 14, Parma, 43126, Italy
| | - Nikolaos Donos
- Centre for Oral Immunobiology and Regenerative Medicine & Centre for Oral Clinical Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK
| |
Collapse
|
10
|
Cui Y, Zhu T, Li D, Li Z, Leng Y, Ji X, Liu H, Wu D, Ding J. Bisphosphonate-Functionalized Scaffolds for Enhanced Bone Regeneration. Adv Healthc Mater 2019; 8:e1901073. [PMID: 31693315 DOI: 10.1002/adhm.201901073] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/28/2019] [Indexed: 12/11/2022]
Abstract
The local sustained release of bioactive substances are attracting increasing attention in bone tissue engineering, which is beneficial to bone tissue formation and helps to improve the bone ingrowth ability of a scaffold. Bisphosphonates (BPs), as a representative kind of osteoclast inhibitors, are proven to possess excellent osteogenic induction capability. Accordingly, various physical and chemical strategies are developed to functionalize bone tissue scaffolds with BPs to achieve controlled release profiles. Compared with traditional treatment modalities, local release of BPs from these composite scaffolds will contribute to continuous bone integration without the risk of many complications. This review explores the molecular mechanisms of BPs on bone metabolism and analyzes the appropriate concentrations of BPs that promote bone regeneration. The advanced BP loading strategies, implant modification technologies, and BP-loaded composite scaffolds based on different matrices are summarized. Finally, the latest advances and the future development of BP-modified scaffolds for enhanced bone regeneration are discussed. This article provides leading-edge design strategies of the BP-functionalized bone engineering scaffolds for improved bone repairability.
Collapse
Affiliation(s)
- Yutao Cui
- Department of OrthopedicsThe Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Tongtong Zhu
- Department of OrthopedicsChina‐Japan Union Hospital of Jilin University Changchun 130033 P. R. China
| | - Di Li
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
| | - Zuhao Li
- Department of OrthopedicsThe Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Yi Leng
- Department of OrthopedicsThe Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Xuan Ji
- Department of StomatologyThe Second Hospital of Jilin University Changchun 130041 P. R. China
| | - He Liu
- Department of OrthopedicsThe Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Dankai Wu
- Department of OrthopedicsThe Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
| |
Collapse
|
11
|
Dereka X, Calciolari E, Donos N, Mardas N. Osseointegration in osteoporotic-like condition: A systematic review of preclinical studies. J Periodontal Res 2018; 53:933-940. [PMID: 29845622 DOI: 10.1111/jre.12566] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2018] [Indexed: 12/11/2022]
Abstract
Osteoporosis is one of the most common skeletal disorders affecting a significant percentage of people worldwide. Research data suggested that systemic diseases such as osteoporosis could act as risk factors for osseointegration, jeopardizing the healing process and thus the predictability of dental implant success on compromised patients. It is well accepted that preclinical studies in animal models reproducing the osteoporotic condition are one of the most important stages in the research of new biomaterials and therapeutic modalities. The aim of this systematic review was to investigate whether osteoporosis compromises dental implant osseointegration in experimental osteoporotic-like conditions. A 3-stage systematic literature research was conducted in MEDLINE via OVID and EMBASE up to and including March 2017. Experimental studies reporting on dental implant osseointegration on different osteoporotic animal models were assessed. The studies had to report on the percentage of bone-to-implant contact (%BIC) as the primary outcome. ARRIVE guidelines for reporting on animal research were applied to evaluate the methodological quality and risk of bias of the studies. Fifty-seven studies met the inclusion criteria and were assessed qualitatively. The most adopted animal model was the rat. A variability of %BIC values was observed, ranging from 30% to 99% and from 26% to 94% for the healthy and osteoporotic group, respectively. The great majority (47) of the included studies concluded that estrogen deficiency significantly affects BIC values, 9 studies stated that it was not possible to observe statistical differences in BIC between ovariectomized and healthy groups and 1 study did not provide a comparison between the healthy and osteoporotic group. Owing to the great heterogeneity in implant surface, study design, observation time-points, site of implant placement and reported outcomes, a meta-analysis could not be performed. An overall high risk of bias was observed, owing to the limited information on animal housing and husbandry, baseline characteristics and health status, ethical statement and allocation to the experimental groups provided. Although the available studies seem to suggest a lower osseointegration in osteoporotic-like conditions, no robust conclusions can be drawn due to the great heterogeneity and overall low quality of the available studies. Future studies with emphasis on minimizing the possible sources of bias and evaluating osseointegration of dental implants placed into jawbones instead of long bones are warranted.
Collapse
Affiliation(s)
- X Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, 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 Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - N Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - N Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| |
Collapse
|
12
|
Romero-Gavilán F, Araújo-Gomes N, García-Arnáez I, Martínez-Ramos C, Elortza F, Azkargorta M, Iloro I, Gurruchaga M, Suay J, Goñi I. The effect of strontium incorporation into sol-gel biomaterials on their protein adsorption and cell interactions. Colloids Surf B Biointerfaces 2018; 174:9-16. [PMID: 30408675 DOI: 10.1016/j.colsurfb.2018.10.075] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 10/11/2018] [Accepted: 10/25/2018] [Indexed: 01/06/2023]
Abstract
It is known strontium can both inhibit the osteoclast formation and stimulate the osteoblast maturation, so biomaterials containing this element can favour bone structure stabilisation. The addition of Sr to biomaterials could affect their interactions with proteins and cells. Here, a silica-hybrid sol-gel network doped with different amounts of SrCl2 and applied as coatings on titanium discs was examined. in vitro analysis was performed to determine the potential effect of Sr in the coatings, showing enhanced gene expression of osteogenic markers (alkaline phosphatase and transforming growth factor-β) in MC3T3-E1 incubated with Sr-doped biomaterials. The examination of inflammatory markers (tumour necrosis factor-α and interleukin 10) in RAW 264.7 macrophages revealed an anti-inflammatory potential of these materials. Proteins adsorbed onto the coatings incubated with human serum (3 h at 37 °C) were also analysed; mass spectrometry was used to characterise the proteins adhering to materials with different Sr content. Adding Sr to the coatings increased their affinity to APOE and VTNC proteins (associated with anti-inflammatory and osteogenic functions). Moreover, the proteins involved in coagulation processes, such as prothrombin, were more abundant on the coatings containing Sr than on the base sol-gel surfaces. Correlations between gene expression and proteomic results were also examined.
Collapse
Affiliation(s)
- F Romero-Gavilán
- Departamento de Ingeniería de Sistemas Industriales y Diseño, Universitat Jaume I, Av. Vicent-Sos Baynat s/n. Castellón 12071. Spain
| | - N Araújo-Gomes
- Departamento de Ingeniería de Sistemas Industriales y Diseño, Universitat Jaume I, Av. Vicent-Sos Baynat s/n. Castellón 12071. Spain; Department of Medicine. Universitat Jaume I, Av. Vicent-Sos Baynat s/n. Castellón 12071. Spain.
| | - I García-Arnáez
- Facultad de Ciencias Químicas. Universidad del País Vasco (UPV/EHU). P. M. de Lardizábal, 3. San Sebastián 20018. Spain
| | - C Martínez-Ramos
- Department of Medicine. Universitat Jaume I, Av. Vicent-Sos Baynat s/n. Castellón 12071. Spain
| | - F Elortza
- Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - M Azkargorta
- Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - I Iloro
- Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - M Gurruchaga
- Facultad de Ciencias Químicas. Universidad del País Vasco (UPV/EHU). P. M. de Lardizábal, 3. San Sebastián 20018. Spain
| | - J Suay
- Departamento de Ingeniería de Sistemas Industriales y Diseño, Universitat Jaume I, Av. Vicent-Sos Baynat s/n. Castellón 12071. Spain
| | - I Goñi
- Facultad de Ciencias Químicas. Universidad del País Vasco (UPV/EHU). P. M. de Lardizábal, 3. San Sebastián 20018. Spain
| |
Collapse
|
13
|
Calciolari E, Hamlet S, Ivanovski S, Donos N. Pro-osteogenic properties of hydrophilic and hydrophobic titanium surfaces: Crosstalk between signalling pathways in in vivo models. J Periodontal Res 2018; 53:598-609. [DOI: 10.1111/jre.12550] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2018] [Indexed: 12/12/2022]
Affiliation(s)
- E. Calciolari
- 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
- Centre for Oral Clinical Research; Institute of Dentistry, Barts and The London School of Medicine and Dentistry; Queen Mary University of London (QMUL); London UK
| | - S. Hamlet
- School of Dentistry and Oral Health; Gold Coast Campus; Griffith University; Southport QLD Australia
- Menzies Health Institute Queensland; Griffith University; Gold Coast QLD Australia
| | - S. Ivanovski
- School of Dentistry; University of Queensland; Brisbane QLD Australia
| | - N. Donos
- 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
- Centre for Oral Clinical Research; Institute of Dentistry, Barts and The London School of Medicine and Dentistry; Queen Mary University of London (QMUL); London UK
| |
Collapse
|
14
|
Calciolari E, Ravanetti F, Strange A, Mardas N, Bozec L, Cacchioli A, Kostomitsopoulos N, Donos N. Degradation pattern of a porcine collagen membrane in an in vivo model of guided bone regeneration. J Periodontal Res 2018; 53:430-439. [PMID: 29446096 DOI: 10.1111/jre.12530] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/24/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE Although collagen membranes have been clinically applied for guided tissue/bone regeneration for more than 30 years, their in vivo degradation pattern has never been fully clarified. A better understanding of the different stages of in vivo degradation of collagen membranes is extremely important, considering that the biology of bone regeneration requires the presence of a stable and cell/tissue-occlusive barrier during the healing stages in order to ensure a predictable result. Therefore, the aim of this study was to investigate the degradation pattern of a porcine non-cross-linked collagen membrane in an in vivo model of guided bone regeneration (GBR). MATERIAL AND METHODS Decalcified and paraffin-embedded specimens from calvarial defects of 18, 10-month-old Wistar rats were used. The defects were treated with a double layer of collagen membrane and a deproteinized bovine bone mineral particulate graft. At 7, 14 and 30 days of healing, qualitative evaluation with scanning electron microscopy and atomic force microscopy, and histomorphometric measurements were performed. Markers of collagenase activity and bone formation were investigated using an immunofluorescence technique. RESULTS A significant reduction of membrane thickness was observed from 7 to 30 days of healing, which was associated with progressive loss of collagen alignment, increased collagen remodeling and progressive invasion of woven bone inside the membranes. A limited inflammatory infiltrate was observed at all time points of healing. CONCLUSION The collagen membrane investigated was biocompatible and able to promote bone regeneration. However, pronounced signs of degradation were observed starting from day 30. Since successful regeneration is obtained only when cell occlusion and space maintenance exist for the healing time needed by the bone progenitor cells to repopulate the defect, the suitability of collagen membranes in cases where long-lasting barriers are needed needs to be further reviewed.
Collapse
Affiliation(s)
- E Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK.,Centre for Oral Immunobiology and Regenerative Medicine, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK
| | - F Ravanetti
- Department of Veterinary Science, University of Parma, Parma, Italy
| | - A Strange
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, UK
| | - N Mardas
- Centre for Oral Immunobiology and Regenerative Medicine, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK
| | - L Bozec
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, London, UK
| | - A Cacchioli
- Department of Veterinary Science, University of Parma, Parma, Italy
| | - N Kostomitsopoulos
- Laboratory Animal Facilities, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - N Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK.,Centre for Oral Immunobiology and Regenerative Medicine, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK
| |
Collapse
|
15
|
Almeida D, Vianna K, Arriaga P, Moraschini V. Dental implants in Sjögren's syndrome patients: A systematic review. PLoS One 2017; 12:e0189507. [PMID: 29240793 DOI: 10.1371/journal.pone.0189507] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/28/2017] [Indexed: 01/08/2023] Open
Abstract
Objectives The Sjögren’s syndrome (SS) is a chronic autoimmune disease that affects salivation and consequently the health of oral tissues. The aim of this systematic review was to investigate the implant survival rate, marginal bone loss (MBL) and biological complications of dental implants in SS patients. Materials and methods Eligibility criteria included prospective and retrospective cohort studies, controlled clinical trials, and randomized clinical trials (RCTs). An electronic search without date or language restrictions was carried out in MEDLINE, Cochrane, Web of Science, and LILACS until June 2017. In addition, manual search and in the grey literature were also conducted. The search process, data analysis, and quality assessment were performed by two independent reviewing authors. The protocol of this systematic review was registered in PROSPERO under number CRD42016053277. Results The search and selection process yielded 6 studies, published between 1997 and 2016. An average of 93.7% survival in a mean period of 3.97 years of follow-up was observed. A low number of MBL and biological complications were reported by the studies. All the studies analyzed observed an improvement in life quality of subjects with SS and rehabilitated through dental implants. Conclusions With the limitations of this review and based on the available data, the dental implant therapy in SS patients seems to present high implant survival rate, low MBL and low biological complications. In addition, all included studies observed an increase in the quality of life of SS patients who were rehabilitated through dental implants.
Collapse
|
16
|
Calciolari E, Mardas N, Dereka X, Anagnostopoulos AK, Tsangaris GT, Donos N. Protein expression during early stages of bone regeneration under hydrophobic and hydrophilic titanium domes. A pilot study. J Periodontal Res 2017; 53:174-187. [PMID: 29063586 DOI: 10.1111/jre.12498] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES There is significant evidence that, during the early stages of osseointegration, moderately rough hydrophilic (SLActive) surfaces can accelerate osteogenesis and increase bone-to-implant contact in comparison to hydrophobic (SLA) surfaces. However, very little is known regarding the molecular mechanisms behind the influence that surface chemistry modifications to increase hydrophilicity determine on bone healing. The aim of this study was to describe for the first time the proteins and related signalling pathways expressed during early osseous healing stages under SLA and SLActive titanium domes for guided bone regeneration. MATERIAL AND METHODS One SLA and 1 SLActive dome with an internal diameter of 5.0 mm and a height of 3.0 mm were secured to the parietal bones of nine 6-month-old male New Zealand rabbits. Three animals were randomly euthanized at 4, 7 and 14 days and the newly formed tissues retrieved under the domes were analysed with liquid chromatography-mass spectrometry/mass spectrometry. STRING and KEGG databases were applied for Gene Ontology and pathway analyses. RESULTS A different modulation of several pathways was detected between the 2 groups at all healing times. The main differences in the osseous healing response associated to the 2 surfaces were related to pathways involved in regulating the inflammatory response, differentiation of osteoblast precursors and skeletogenesis. At day 7, the highest number of proteins and the highest cellular activity were observed in both groups, although a more complex and articulated proteome in terms of cellular metabolism and signal transduction was observed in SLActive samples. CONCLUSION This is the first study describing the proteome expressed during early healing stages of guided bone regeneration and osseointegration. A combination of enhanced early osteogenic response and reduced inflammatory response were suggested for the hydrophilic group. Future studies are needed to corroborate these findings and explore the molecular effects of different titanium surfaces on the cascade of events taking place during bone formation.
Collapse
Affiliation(s)
- E Calciolari
- Centre for Clinical Oral Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK.,Centre for Oral Immunobiology and Regenerative Medicine, Queen Mary University of London (QMUL), Bart's & The London School of Dentistry & Medicine, London, UK
| | - N Mardas
- Centre for Oral Immunobiology and Regenerative Medicine, Queen Mary University of London (QMUL), Bart's & The London School of Dentistry & Medicine, London, UK
| | - X Dereka
- Department of Periodontology, National and Kapodistrian University of Athens, Athens, Greece
| | - A K Anagnostopoulos
- Proteomics Research Unit, Centre of Basic Research II, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - G T Tsangaris
- Proteomics Research Unit, Centre of Basic Research II, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - N Donos
- Centre for Clinical Oral Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK.,Centre for Oral Immunobiology and Regenerative Medicine, Queen Mary University of London (QMUL), Bart's & The London School of Dentistry & Medicine, London, UK
| |
Collapse
|
17
|
Xu X, Jia X, Mo L, Liu C, Zheng L, Yuan Q, Zhou X. Intestinal microbiota: a potential target for the treatment of postmenopausal osteoporosis. Bone Res 2017; 5:17046. [PMID: 28983411 PMCID: PMC5627629 DOI: 10.1038/boneres.2017.46] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 07/24/2017] [Indexed: 02/08/2023] Open
Abstract
Postmenopausal osteoporosis (PMO) is a prevalent metabolic bone disease characterized by bone loss and structural destruction, which increases the risk of fracture in postmenopausal women. Owing to the high morbidity and serious complications of PMO, many efforts have been devoted to its prophylaxis and treatment. The intestinal microbiota is the complex community of microorganisms colonizing the gastrointestinal tract. Probiotics, which are dietary or medical supplements consisting of beneficial intestinal bacteria, work in concert with endogenous intestinal microorganisms to maintain host health. Recent studies have revealed that bone loss in PMO is closely related to host immunity, which is influenced by the intestinal microbiota. The curative effects of probiotics on metabolic bone diseases have also been demonstrated. The effects of the intestinal microbiota on bone metabolism suggest a promising target for PMO management. This review seeks to summarize the critical effects of the intestinal microbiota and probiotics on PMO, with a focus on the molecular mechanisms underlying the pathogenic relationship between bacteria and host, and to define the possible treatment options.
Collapse
Affiliation(s)
- Xin Xu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoyue Jia
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Longyi Mo
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chengcheng Liu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Dental Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
18
|
Retzepi M, Calciolari E, Wall I, Lewis MP, Donos N. The effect of experimental diabetes and glycaemic control on guided bone regeneration: histology and gene expression analyses. Clin Oral Implants Res 2017; 29:139-154. [PMID: 28719032 DOI: 10.1111/clr.13031] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2017] [Indexed: 01/07/2023]
Abstract
OBJECTIVES To investigate the effect of experimental diabetes and metabolic control on intramembranous bone healing following guided bone regeneration (GBR). MATERIAL AND METHODS Ninety-three Wistar rats were allocated to three experimental groups, healthy (H), uncontrolled diabetes (D) and controlled diabetes (CD). Twenty one days following diabetes induction, a standardised 5-mm defect was created at the mid-portion of each parietal bone. In 75 animals (25H, 25D, 25CD), one defect was treated with an intracranial and extracranial membrane according to the GBR principle, and one defect was left empty (control); five animals per group were then randomly sacrificed at 3, 7, 15, 30 and 60 days and processed for decalcified histology. In 18 animals (6H, 6D, 6CD), both defects were treated according to the GBR principle; three animals from each group were then randomly sacrificed at 7 and 15 days of healing and employed for gene expression analysis. RESULTS Application of the GBR therapeutic principle led to significant bone regeneration even in the D group. However, at 15 and 30 days, the osteogenesis process was impaired by uncontrolled diabetes, as shown by the significant reduction in terms of defect closure (38-42%) and newly formed bone (54-61%) compared to the healthy group. The comparison of the D vs. H group at 15 days of healing yielded the largest number of genes with significantly differential expression, among which various genes associated with the ossification process (bmp4, ltbp4, thra and cd276) were identified. CONCLUSIONS Uncontrolled diabetes seems to affect early phases of the bone regeneration following GBR. A misregulation of genes and pathways related to cell division, energy production, inflammation and osteogenesis may account for the impaired regeneration process in D rats. Further studies are warranted to optimise the GBR process in this medically compromised patient population.
Collapse
Affiliation(s)
- M Retzepi
- Centre for Oral Clinical Research, 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, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - I Wall
- Regenerative Medicine Bioprocessing Unit, UCL Advanced Centre for Biochemical Engineering, London, UK
| | - M P Lewis
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - N Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| |
Collapse
|
19
|
Affiliation(s)
- Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK
| | - Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK
| | - Nikos Mardas
- Centre for Adult Oral Health, Barts and The London School of Dentistry & Hospital, Queen Mary University of London (QMUL), London, UK
| |
Collapse
|