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Na Z, Wei W, Xu Y, Li D, Yin B, Gu W. Role of menopausal hormone therapy in the prevention of postmenopausal osteoporosis. Open Life Sci 2023; 18:20220759. [PMID: 38152576 PMCID: PMC10752002 DOI: 10.1515/biol-2022-0759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/08/2023] [Accepted: 10/02/2023] [Indexed: 12/29/2023] Open
Abstract
The use of menopausal hormone therapy (MHT) has declined due to concerns about its potential side effects. However, its pivotal role in managing postmenopausal osteoporosis is gaining increased recognition. In this article, we explore how MHT assists postmenopausal women in maintaining bone health and preventing fractures. Recent research indicates that MHT significantly reduces the risk of fractures in women. This benefit is evident regardless of a woman's bone mineral density or their use of progestogens. However, there is limited evidence suggesting that the skeletal benefits continue once the treatment is discontinued. Possible complications of MHT include heart attacks, clots, strokes, dementia, and breast cancer. The most suitable candidates for MHT are women who have recently entered menopause, are experiencing menopausal symptoms, and are below 60 years of age with a minimal baseline risk of adverse events. The treatment is available to those who meet these criteria. For women undergoing premature menopause, MHT can be considered as a means to protect bone health, especially if initiated before menopause or if accelerated bone loss is documented soon after menopause. Such decisions should be made after evaluating individual risk factors and benefits.
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Affiliation(s)
- Zhao Na
- Department of Gynecology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, 215500, China
| | - Wei Wei
- Department of Orthopaedics, Changshu Hospital Affiliated to Soochow University, First People’s Hospital of Changshu City, Changshu, 215500, China
| | - Yingfang Xu
- Department of Gynecology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, 215500, China
| | - Dong Li
- Department of Obstetrics and Gynecology, Changzhou Geriatric Hospital Affiliated to Soochow University, Changzhou No. 7 People’s Hospital, Changzhou, 213000, China
| | - Beili Yin
- Department of Gynecology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, 215500, China
| | - Weiqun Gu
- Department of Gynecology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, 215500, China
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Tuygunov N, Zakaria MN, Yahya NA, Abdul Aziz A, Cahyanto A. Efficacy and bone-contact biocompatibility of glass ionomer cement as a biomaterial for bone regeneration: A systematic review. J Mech Behav Biomed Mater 2023; 146:106099. [PMID: 37660446 DOI: 10.1016/j.jmbbm.2023.106099] [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: 07/24/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Bone regeneration is a rapidly growing field that seeks to develop new biomaterials to regenerate bone defects. Conventional bone graft materials have limitations, such as limited availability, complication, and rejection. Glass ionomer cement (GIC) is a biomaterial with the potential for bone regeneration due to its bone-contact biocompatibility, ease of use, and cost-effectiveness. GIC is a two-component material that adheres to the bone and releases ions that promote bone growth and mineralization. A systematic literature search was conducted using PubMed-MEDLINE, Scopus, and Web of Science databases and registered in the PROSPERO database to determine the evidence regarding the efficacy and bone-contact biocompatibility of GIC as bone cement. Out of 3715 initial results, thirteen studies were included in the qualitative synthesis. Two tools were employed in evaluating the Risk of Bias (RoB): the QUIN tool for assessing in vitro studies and SYRCLE for in vivo. The results indicate that GIC has demonstrated the ability to adhere to bone and promote bone growth. Establishing a chemical bond occurs at the interface between the GIC and the mineral phase of bone. This interaction allows the GIC to exhibit osteoconductive properties and promote the growth of bone tissue. GIC's bone-contact biocompatibility, ease of preparation, and cost-effectiveness make it a promising alternative to conventional bone grafts. However, further research is required to fully evaluate the potential application of GIC in bone regeneration. The findings hold implications for advancing material development in identifying the optimal composition and fabrication of GIC as a bone repair material.
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Affiliation(s)
- Nozimjon Tuygunov
- Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Myrna Nurlatifah Zakaria
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia; Biomaterials Technology Research Groups, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Noor Azlin Yahya
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia; Biomaterials Technology Research Groups, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia.
| | - Azwatee Abdul Aziz
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia; Biomaterials Technology Research Groups, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Arief Cahyanto
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia; Biomaterials Technology Research Groups, Faculty of Dentistry, University of Malaya, Kuala Lumpur, 50603, Malaysia; Department of Dental Materials Science and Technology, Faculty of Dentistry, Padjadjaran University, Jatinangor, 45363, Indonesia.
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Sharma A, Sharma C, Shah OP, Chigurupati S, Ashokan B, Meerasa SS, Rashid S, Behl T, Bungau SG. Understanding the mechanistic potential of plant based phytochemicals in management of postmenopausal osteoporosis. Biomed Pharmacother 2023; 163:114850. [PMID: 37172332 DOI: 10.1016/j.biopha.2023.114850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/14/2023] Open
Abstract
Postmenopausal osteoporosis, an epidemic disorder is defined as a loss in bone mineral density and a greater possibility of fractures in older women. It is a multifactorial disease under the control of various genetic, hormonal, and environmental factors. Insufficiency of estrogen hormone, leads to postmenopausal osteoporosis. Hormone replacement therapy (HRT), despite being the most effective treatment, it is associated with the risk of breast cancer and cardiovascular disorders. This review seeks to compile the most recent information on medicinal plants and natural compounds used to treat and prevent postmenopausal osteoporosis. Furthermore, the origin, chemical constituents and the molecular mechanisms responsible for this therapeutic and preventive effect are also discussed. Literature research was conducted using PubMed, Science direct, Scopus, Web of Science, and Google Scholar. Different plant extracts and pure compounds exerts their antiosteoporotic activity by inhibition of RANKL and upregulation of OPG. RANKL signaling regulates osteoclast formation, characterized by increased bone turnover and osteoprotegrin is a decoy receptor for RANKL thereby preventing bone loss from excessive resorption. In addition, this review also includes the chemical structure of bioactive compounds acting on NFκB, TNF α, RUNX2. In conclusion, we propose that postmenopausal osteoporosis could be prevented or treated with herbal products.
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Affiliation(s)
- Aditi Sharma
- Department of Pharmacology, School of Pharmaceutical Sceinces, Shoolini University, Solan, Himachal Pradesh 173229, India
| | - Chakshu Sharma
- Department of Pharmacology, School of Pharmaceutical Sceinces, Shoolini University, Solan, Himachal Pradesh 173229, India
| | - Om Praksah Shah
- Department of Pharmacology, School of Pharmaceutical Sceinces, Shoolini University, Solan, Himachal Pradesh 173229, India
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 52571, Saudi Arabia; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Saveetha Nagar, Thandalam, Chennai, 602105 India
| | - Bhaskaran Ashokan
- Department of Surgery, College of Medicine, Shaqra University, Shaqra 15526, Saudi Arabia
| | - Semmal Syed Meerasa
- Department of Physiology, College of Medicine, Shaqra University, Shaqra 15526, Saudi Arabia
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, PO Box 173, Al-Kharj 11942, Saudi Arabia
| | - Tapan Behl
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Bidholi, Dehradun 248007, Uttarakhand, India.
| | - Simona Gabriela Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea 410028, Romania; Doctoral School of Biomedical Sciences, University of Oradea, Oradea 410028, Romania.
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Abstract
Living systems are built from a small subset of the atomic elements, including the bulk macronutrients (C,H,N,O,P,S) and ions (Mg,K,Na,Ca) together with a small but variable set of trace elements (micronutrients). Here, we provide a global survey of how chemical elements contribute to life. We define five classes of elements: those that are (i) essential for all life, (ii) essential for many organisms in all three domains of life, (iii) essential or beneficial for many organisms in at least one domain, (iv) beneficial to at least some species, and (v) of no known beneficial use. The ability of cells to sustain life when individual elements are absent or limiting relies on complex physiological and evolutionary mechanisms (elemental economy). This survey of elemental use across the tree of life is encapsulated in a web-based, interactive periodic table that summarizes the roles chemical elements in biology and highlights corresponding mechanisms of elemental economy.
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Affiliation(s)
- Kaleigh A Remick
- Department of Microbiology, Cornell University, New York, NY, United States
| | - John D Helmann
- Department of Microbiology, Cornell University, New York, NY, United States.
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Liang B, Burley G, Lin S, Shi YC. Osteoporosis pathogenesis and treatment: existing and emerging avenues. Cell Mol Biol Lett 2022; 27:72. [PMID: 36058940 PMCID: PMC9441049 DOI: 10.1186/s11658-022-00371-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 08/09/2022] [Indexed: 11/10/2022] Open
Abstract
AbstractOsteoporotic fractures lead to increased disability and mortality in the elderly population. With the rapid increase in the aging population around the globe, more effective treatments for osteoporosis and osteoporotic fractures are urgently required. The underlying molecular mechanisms of osteoporosis are believed to be due to the increased activity of osteoclasts, decreased activity of osteoblasts, or both, which leads to an imbalance in the bone remodeling process with accelerated bone resorption and attenuated bone formation. Currently, the available clinical treatments for osteoporosis have mostly focused on factors influencing bone remodeling; however, they have their own limitations and side effects. Recently, cytokine immunotherapy, gene therapy, and stem cell therapy have become new approaches for the treatment of various diseases. This article reviews the latest research on bone remodeling mechanisms, as well as how this underpins current and potential novel treatments for osteoporosis.
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Zhang X, Wells EM, Specht AJ, Weisskopf MG, Weuve J, Nie LH. In vivo quantification of strontium in bone among adults using portable x-ray fluorescence. J Trace Elem Med Biol 2022; 74:127077. [PMID: 36155421 DOI: 10.1016/j.jtemb.2022.127077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/09/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Bone strontium (Sr) is a reliable biomarker for studying related bone health outcomes and the effectiveness of Sr supplements in osteoporosis disease treatment. In this study, we evaluated the sensitivity of portable x-ray fluorescence (XRF) technology for in vivo bone Sr quantification among adults. MATERIALS AND METHODS Sr-doped bone-equivalent phantoms were used for system calibration. Using the portable XRF, we measured bone Sr levels in vivo in mid-tibia bone in 76 adults, 38-95 years of age, living in Indiana, US; we also analyzed bone data of 29 adults, 53-82 years of age, living in Shanghai, China. The same portable XRF device and system settings were used in measuring their mid-tibia bone. We compared bone Sr concentrations by sex, age, and recruitment site. We also used multiple linear regression model to estimate the association of age with bone Sr concentration, adjusting for sex and recruitment site. RESULTS The uncertainty of in vivo individual measurement increased with higher soft tissue thickness overlying bone, and it ranged from 1.0 ug/g dry bone (ppm) to 2.4 ppm with thickness ranging from 2 to 7 mm, with a measurement time of 5 min. Geometric mean (95% confidence interval (CI)) of the bone Sr concentration was 79.1 (70.1, 89.3) ppm. After adjustment for recruitment site and sex, an increase in five years of age was associated with a 8.9% (95% CI: 2.5%, 15.6%) increase in geometric mean bone Sr concentration. DISCUSSION AND CONCLUSION Sr concentrations were consistently well above detection limits of the portable XRF, and exhibited an expected increase with age. These data suggest that the portable XRF can be a valuable technology to quantify Sr concentration in bone, and in the study of Sr-related health outcomes among adults, such as bone mineral density (BMD) and bone fracture risk.
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Affiliation(s)
- Xinxin Zhang
- School of Health Sciences, Purdue University, West Lafayette, IN, USA; Department of Radiation Oncology, Rutgers-Cancer Institute of New Jersey, Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Ellen M Wells
- School of Health Sciences, Purdue University, West Lafayette, IN, USA
| | - Aaron J Specht
- School of Health Sciences, Purdue University, West Lafayette, IN, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Marc G Weisskopf
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jennifer Weuve
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Linda H Nie
- School of Health Sciences, Purdue University, West Lafayette, IN, USA.
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Fadeeva IV, Deyneko DV, Forysenkova AA, Morozov VA, Akhmedova SA, Kirsanova VA, Sviridova IK, Sergeeva NS, Rodionov SA, Udyanskaya IL, Antoniac IV, Rau JV. Strontium Substituted β-Tricalcium Phosphate Ceramics: Physiochemical Properties and Cytocompatibility. Molecules 2022; 27:molecules27186085. [PMID: 36144818 PMCID: PMC9505591 DOI: 10.3390/molecules27186085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/30/2022] Open
Abstract
Sr2+-substituted β-tricalcium phosphate (β-TCP) powders were synthesized using the mechano-chemical activation method with subsequent pressing and sintering to obtain ceramics. The concentration of Sr2+ in the samples was 0 (non-substituted TCP, as a reference), 3.33 (0.1SrTCP), and 16.67 (0.5SrTCP) mol.% with the expected Ca3(PO4)2, Ca2.9Sr0.1(PO4)2, and Ca2.5Sr0.5(PO4)2 formulas, respectively. The chemical compositions were confirmed by the energy-dispersive X-ray spectrometry (EDX) and the inductively coupled plasma optical emission spectroscopy (ICP-OES) methods. The study of the phase composition of the synthesized powders and ceramics by the powder X-ray diffraction (PXRD) method revealed that β-TCP is the main phase in all compounds except 0.1SrTCP, in which the apatite (Ap)-type phase was predominant. TCP and 0.5SrTCP ceramics were soaked in the standard saline solution for 21 days, and the phase analysis revealed the partial dissolution of the initial β-TCP phase with the formation of the Ap-type phase and changes in the microstructure of the ceramics. The Sr2+ ion release from the ceramic was measured by the ICP-OES. The human osteosarcoma MG-63 cell line was used for viability, adhesion, spreading, and cytocompatibility studies. The results show that the introduction of Sr2+ ions into the β-TCP improved cell adhesion, proliferation, and cytocompatibility of the prepared samples. The obtained results provide a base for the application of the Sr2+-substituted ceramics in model experiments in vivo.
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Affiliation(s)
- Inna V. Fadeeva
- A.A. Baikov Institute of Metallurgy and Material Science RAS, Leninskie, 49, 119334 Moscow, Russia
| | - Dina V. Deyneko
- Department of Chemistry, Lomonosov Moscow State University, 1, Leninskie Gory, 119991 Moscow, Russia
- Laboratory of Arctic Mineralogy and Material Sciences, Kola Science Centre, Russian Academy of Sciences, 14 Fersman Str., 184209 Apatity, Russia
| | - Anna A. Forysenkova
- A.A. Baikov Institute of Metallurgy and Material Science RAS, Leninskie, 49, 119334 Moscow, Russia
| | - Vladimir A. Morozov
- Department of Chemistry, Lomonosov Moscow State University, 1, Leninskie Gory, 119991 Moscow, Russia
| | - Suraya A. Akhmedova
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
| | - Valentina A. Kirsanova
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
| | - Irina K. Sviridova
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
| | - Natalia S. Sergeeva
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
- Academician Yarygin Department of Biology, Federal State Autonomous Educational Institution of Higher Education Russian National Research Medical University Named after N.I. Pirogov, Str. Ostrovityanova, 1, 117997 Moscow, Russia
| | - Sergey A. Rodionov
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
- N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics, 10 Priorova Str., 127299 Moscow, Russia
| | - Irina L. Udyanskaya
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, 119991 Moscow, Russia
| | - Iulian V. Antoniac
- Department of Metallic Materials Science and Physical Metallurg, University Politehnica of Bucharest, Street Splaiul Independentei No 313, Sector 6, 060042 Bucharest, Romania
| | - Julietta V. Rau
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, 119991 Moscow, Russia
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere, 100-00133 Rome, Italy
- Correspondence:
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Borciani G, Ciapetti G, Vitale-Brovarone C, Baldini N. Strontium Functionalization of Biomaterials for Bone Tissue Engineering Purposes: A Biological Point of View. MATERIALS 2022; 15:ma15051724. [PMID: 35268956 PMCID: PMC8911212 DOI: 10.3390/ma15051724] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 02/04/2023]
Abstract
Strontium (Sr) is a trace element taken with nutrition and found in bone in close connection to native hydroxyapatite. Sr is involved in a dual mechanism of coupling the stimulation of bone formation with the inhibition of bone resorption, as reported in the literature. Interest in studying Sr has increased in the last decades due to the development of strontium ranelate (SrRan), an orally active agent acting as an anti-osteoporosis drug. However, the use of SrRan was subjected to some limitations starting from 2014 due to its negative side effects on the cardiac safety of patients. In this scenario, an interesting perspective for the administration of Sr is the introduction of Sr ions in biomaterials for bone tissue engineering (BTE) applications. This strategy has attracted attention thanks to its positive effects on bone formation, alongside the reduction of osteoclast activity, proven by in vitro and in vivo studies. The purpose of this review is to go through the classes of biomaterials most commonly used in BTE and functionalized with Sr, i.e., calcium phosphate ceramics, bioactive glasses, metal-based materials, and polymers. The works discussed in this review were selected as representative for each type of the above-mentioned categories, and the biological evaluation in vitro and/or in vivo was the main criterion for selection. The encouraging results collected from the in vitro and in vivo biological evaluations are outlined to highlight the potential applications of materials’ functionalization with Sr as an osteopromoting dopant in BTE.
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Affiliation(s)
- Giorgia Borciani
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy;
- Correspondence: ; Tel.: +39-051-6366748
| | - Gabriela Ciapetti
- Biomedical Science and Technologies Laboratory, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
- Laboratory for Nanobiotechnology, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - Chiara Vitale-Brovarone
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;
| | - Nicola Baldini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy;
- Biomedical Science and Technologies Laboratory, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
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Hong L, Yuan L, Xu X, Ma Y, Meng L, Wang J, Zhao N, Wang X, Ma J. Biocompatible Nanotube-Strontium/polydopamine-arginine-glycine-aspartic acid coating on Ti6Al4V enhances osteogenic properties for biomedical applications. Microsc Res Tech 2021; 85:1518-1526. [PMID: 34964200 DOI: 10.1002/jemt.24014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/23/2021] [Accepted: 11/29/2021] [Indexed: 01/06/2023]
Abstract
Titanium (Ti) alloys, particularly Ti6 Al4 V, are the most commonly used biomedical implant material. Ti alloys are biologically inert, so there have been continuous efforts to improve their osteogenic properties and clinical performance. Since TiO2 nanotubes (NT) appear to be excellent drug platforms, and strontium reportedly enhances osteogenesis, we constructed a TiO2 nanotube coating on the surface of Ti6 Al4 V and immersed it in Sr (OH)2 solution in order to incorporate Sr into TiO2 nanotubes (NT-Sr). The results of field emission scanning electron microscope and X-ray diffraction analysis verified the fabrication of NT-Sr. We next added polydopamine (PDA) and cyclo- (arginine-glycine-aspartic acid-phenylalanine-cysteine) [c(RGDfC)] peptides to further promote biocompatibility of the implant. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy confirmed the existence of PDA and c(RGDfC). Mesenchymal stem cells (MSCs) were planted on Ti, NT, NT-Sr, NT-Sr/PDA, and NT-Sr/PDA-RGD surfaces. The adhesion and differentiation of MSCs on different surfaces were evaluated. The mRNA expression of alkaline phosphatase, runt-related transcription factor 2 (Runx2) and type I collagen (Col I) of different groups were also tested. Finally, we observed that the NT-Sr/PDA-RGD group showed significantly better performance than other groups in terms of the differentiation and osteogenesis-related gene expression of MSCs. Thus, the NT-Sr/PDA-RGD complex may be an important modification strategy for Ti, as it shows excellent osteogenic potential.
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Affiliation(s)
- Leilei Hong
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
| | - Lichan Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
| | - Xiaoxu Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
| | - Yuhuan Ma
- Nanjng Foreign Language School, Nanjing, Jiangsu, China
| | - Li Meng
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
| | - Junyi Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
| | - Na Zhao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
| | - Xiaoliang Wang
- Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, Nanjing University, Nanjing, China
| | - Junqing Ma
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140 Hanzhong Road, Nanjing, China
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Miao Q, Jiang N, Yang Q, Hussein IM, Luo Z, Wang L, Yang S. Multi-stage controllable degradation of strontium-doped calcium sulfate hemihydrate-tricalcium phosphate microsphere composite as a substitute for osteoporotic bone defect repairing: degradation behavior and bone response. Biomed Mater 2021; 17. [PMID: 34905745 DOI: 10.1088/1748-605x/ac4323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022]
Abstract
Various requirements for the repair of complex bone defects have motivated to development of scaffolds with adjustable degradation rates and biological functions. Tricalcium phosphate (TCP) and calcium sulfate are the most commonly used bone repair materials in the clinic, how to better combine TCP and calcium sulfate and play their greatest advantages in the repair of osteoporotic bone defect is the focus of our research. In this study, a series of scaffolds with multistage-controlled degradation properties composed of strontium-doped calcium sulfate (SrCSH) and strontium-doped tricalcium phosphate (Sr-TCP) microspheres scaffolds were prepared, and their osteogenic activity,in vivodegradation and bone regeneration ability in tibia of osteoporotic rats were evaluated.In vitrostudies revealed that different components of SrCSH/Sr-TCP scaffolds significantly promoted the proliferation and differentiation of MC3T3-E1 cells, which showed a good osteogenic induction activity.In vivodegradation results showed that the degradation time of composite scaffolds could be controlled in a large range (6-12 months) by controlling the porosity and phase composition of Sr-TCP microspheres. The results of osteoporotic femoral defect repair showed that when the degradation rate of scaffold matched with the growth rate of new bone, the parameters such as bone mineral density, bone volume/total volume ratio, trabecular thickness, angiogenesis marker platelet endothelial cell adhesion molecule-1 and new bone formation marker osteocalcin expression were higher, which promoted the rapid repair of osteoporotic bone defects. On the contrary, the slow degradation rate of scaffolds hindered the growth of new bone to a certain extent. This study elucidates the importance of the degradation rate of scaffolds for the repair of osteoporotic bone defects, and the design considerations can be extended to other bone repair materials, which is expected to provide new ideas for the development of tissue engineering materials in the future.
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Affiliation(s)
- Qiuju Miao
- School of Medicine, South China University of Technology, Guangzhou 510006, People's Republic of China
| | - Nan Jiang
- Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Qinmeng Yang
- Department of Foot and Ankle Surgery, Guangzhou Orthopaedic Hospital, Guangzhou, People's Republic of China
| | - Ismail Mohamed Hussein
- Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Zhen Luo
- Pingshan District people's Hospital of Shenzhen, Shenzhen, People's Republic of China
| | - Lei Wang
- Department of Orthopaedics and Traumatology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Shenyu Yang
- Medical 3D Printing Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 510632, People's Republic of China
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Somma T, DE Rosa A, Mastantuoni C, Esposito F, Meglio V, Romano F, Ricciardi L, DE Divitiis O, DI Somma C. Multidisciplinary management of osteoporotic vertebral fractures. An overview. Minerva Endocrinol (Torino) 2021; 47:189-202. [PMID: 34881854 DOI: 10.23736/s2724-6507.21.03515-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Vertebral fractures represent the most frequent complication associated with osteoporosis. Patients harboring a vertebral fracture complain physical impairment including low back pain and spine balance alteration, i.e., kyphosis, leading to subsequent systemic complication, with an increase in morbidity and mortality risk. Different strategies are available in the management of osteoporotic vertebral fractures: medical therapy acts as a prevention strategy while surgical vertebral augmentation procedures, when correctly indicated, aim to reduce pain and to restore the physiological vertebral height. Considering the growing prevalence and incidence of this condition and its socio-economic burden, prevention, diagnosis and treatment of osteoporotic vertebral fractures are of utmost importance. Our aim is to review the current strategies for the management of osteoporotic vertebral fractures providing an integrated multidisciplinary endocrinological, radiological and neurosurgical point of view.
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Affiliation(s)
- Teresa Somma
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Andrea DE Rosa
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy -
| | - Ciro Mastantuoni
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Felice Esposito
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Vincenzo Meglio
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Fiammetta Romano
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Federico II University Medical School, Naples, Italy
| | - Luca Ricciardi
- Neurosurgery, Department NESMOS, Sapienza University of Rome, Rome, Italy
| | - Oreste DE Divitiis
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Carolina DI Somma
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, Federico II University Medical School, Naples, Italy
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12
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Chen X, Sun S, Geng T, Fan X, Zhang S, Zhao S, Geng Y, Jin Q. Resveratrol reduces the progression of titanium particle-induced osteolysis via the Wnt/β-catenin signaling pathway in vivo and in vitro. Exp Ther Med 2021; 22:1119. [PMID: 34504573 PMCID: PMC8383761 DOI: 10.3892/etm.2021.10553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/26/2021] [Indexed: 12/16/2022] Open
Abstract
As an activator of sirtuin 1, resveratrol has become an extensively reviewed anti-inflammatory and anti-aging drug in recent years, and it has been widely studied for the treatment of energy control and endocrine diseases. The present study attempted to characterize the role of resveratrol in osteolysis induced by titanium (Ti) alloy particles and Ti pins in vitro and in vivo. In vitro, bone marrow mesenchymal stem cells were cultured with Ti alloy particles to simulate osteolysis. Cell viability and the expression levels of proteins associated with osteogenesis and the Wnt/β-catenin signaling pathway, including Runt-related transcription factor 2 (Runx2), alkaline phosphatase, osteocalcin, β-catenin, lymphoid enhancer-binding factor 1 and transcription factor 4, were increased following treatment with resveratrol after 21 days of osteogenic differentiation. In vivo, a Ti pin model in C57BL/6J mice was used to study the anti-osteolysis effect of resveratrol on the peri-prosthetic bone. The pulling force of the Ti alloy pin was increased in a dose-dependent manner in the resveratrol groups compared with the control group. Furthermore, the results of micro-CT scanning revealed that the bone volume and the bone surface/volume ratio in the periprosthetic tissue were increased in the resveratrol-treated groups, particularly in the high-dose resveratrol group. In addition, immunohistochemistry demonstrated that Runx2 expression was upregulated in the high-dose resveratrol group. In conclusion, the results of the present study indicated that resveratrol may inhibit Ti particle-induced osteolysis via activation of the Wnt/β-catenin signaling pathway in vitro and in vivo.
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Affiliation(s)
- Xi Chen
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Tianxiang Geng
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Xin Fan
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Shifeng Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Sijia Zhao
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu 210042, P.R. China
| | - Yi Geng
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu 210042, P.R. China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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13
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Management of osteoporosis in postmenopausal women: the 2021 position statement of The North American Menopause Society. Menopause 2021; 28:973-997. [PMID: 34448749 DOI: 10.1097/gme.0000000000001831] [Citation(s) in RCA: 156] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To review evidence regarding osteoporosis screening, prevention, diagnosis, and management in the past decade and update the position statement published by The North American Menopause Society (NAMS) in 2010 regarding the management of osteoporosis in postmenopausal women as new therapies and paradigms have become available. DESIGN NAMS enlisted a panel of clinician experts in the field of metabolic bone diseases and/or women's health to review and update the 2010 NAMS position statement and recommendations on the basis of new evidence and clinical judgement. The panel's recommendations were reviewed and approved by the NAMS Board of Trustees. RESULTS Osteoporosis, especially prevalent in older postmenopausal women, increases the risk of fractures that can be associated with significant morbidity and mortality. Postmenopausal bone loss, related to estrogen deficiency, is the primary contributor to osteoporosis. Other important risk factors for postmenopausal osteoporosis include advanced age, genetics, smoking, thinness, and many diseases and drugs that impair bone health. An evaluation of these risk factors to identify candidates for osteoporosis screening and recommending nonpharmacologic measures such as good nutrition (especially adequate intake of protein, calcium, and vitamin D), regular physical activity, and avoiding smoking and excessive alcohol consumption are appropriate for all postmenopausal women. For women at high risk for osteoporosis, especially perimenopausal women with low bone density and other risk factors, estrogen or other therapies are available to prevent bone loss. For women with osteoporosis and/or other risk factors for fracture, including advanced age and previous fractures, the primary goal of therapy is to prevent new fractures. This is accomplished by combining nonpharmacologic measures, drugs to increase bone density and to improve bone strength, and strategies to reduce fall risk. If pharmacologic therapy is indicated, government-approved options include estrogen agonists/antagonists, bisphosphonates, RANK ligand inhibitors, parathyroid hormone-receptor agonists, and inhibitors of sclerostin. CONCLUSIONS Osteoporosis is a common disorder in postmenopausal women. Management of skeletal health in postmenopausal women involves assessing risk factors for fracture, reducing modifiable risk factors through dietary and lifestyle changes, and the use of pharmacologic therapy for patients at significant risk of osteoporosis or fracture. For women with osteoporosis, lifelong management is necessary. Treatment decisions occur continuously over the lifespan of a postmenopausal woman. Decisions must be individualized and should include the patient in the process of shared decision-making.
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Zhang X, Cui J, Cheng L, Lin K. Enhancement of osteoporotic bone regeneration by strontium-substituted 45S5 bioglass via time-dependent modulation of autophagy and the Akt/mTOR signaling pathway. J Mater Chem B 2021; 9:3489-3501. [PMID: 33690737 DOI: 10.1039/d0tb02991b] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Osteoporosis (OP) is a major systemic bone disease leading to an imbalance in bone homeostasis which remains a challenge in the current treatment of bone defects. Our previous studies on strontium (Sr) doping apparently stimulated osteogenesis of bioceramics, which suggested a promising strategy for the treatment of bone defects. However, the potential effects and the underlying mechanisms of Sr-doping on osteoporotic bone defects still remain unclear. Autophagy is a conventional self-degradation process of cells involved in bone homeostasis and regeneration under physiological and pathological conditions. Therefore, it is essential to design appropriate biomaterials and investigate the associated osteogenic mechanisms via autophagy. Based on this hypothesis, Sr-doped 45S5 bioglass (Sr/45S5) was fabricated, and ovariectomy bone marrow-derived mesenchymal stem cells (OVX-BMSCs) were applied as the in vitro cell culture model. First, the optimal Sr-doping concentration of 10 mol% was screened by cell proliferation, ALP staining, alizarin red S staining and the real-time PCR assay. Then, the results of western blot (WB) analysis showed that Sr-induced osteogenic differentiation of OVX-BMSCs was associated with time-dependent modulation of autophagy and related to the AKT/mTOR signaling pathway. Meanwhile, the autophagy in Sr-induced osteogenic differentiation of OVX-BMSCs was detected by WB, immunofluorescence staining and transmission electron microscopy. Furthermore, the effect of osteogenic differentiation of OVX-BMSCs has been significantly inhibited by the administration of autophagy inhibitors and the AKT/mTOR pathway inhibitors, respectively, in the early and late periods of osteogenic differentiation. Finally, the results of the model of femoral condyle defects in OVX-rats indicated that Sr10/45S5 granules remarkably enhanced bone regeneration which provided the evidences in vivo. Our research indicates that Sr-doping provides a promising strategy to promote osteogenic differentiation of OVX-BMSCs and bone regeneration in osteoporotic bone defects via early improvement of autophagy and late activation of the Akt/mTOR signaling pathway.
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Affiliation(s)
- Xinran Zhang
- Department of Oral and Cranio-Maxillofacial Science, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China. and School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Jinjie Cui
- Department of Oral and Cranio-Maxillofacial Science, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China.
| | - Liming Cheng
- Department of Spine Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China. and Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University), Ministry of Education, Shanghai, China
| | - Kaili Lin
- Department of Oral and Cranio-Maxillofacial Science, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China.
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15
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Chang LC, Chung CY, Chiu CH, Lin MHC, Yang JT. The Effect of Polybutylcyanoacrylate Nanoparticles as a Protos Delivery Vehicle on Dental Bone Formation. Int J Mol Sci 2021; 22:4873. [PMID: 34062952 PMCID: PMC8125394 DOI: 10.3390/ijms22094873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/23/2021] [Accepted: 05/01/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Dental implants are commonly used for missing teeth, for which success depends heavily on the quality of the alveolar bone. The creation of an ideal implant site is a key component in shortening the treatment time, which remains clinically challenging. Strontium ranelate (Protos) is an anti-osteoporotic agent which has previously been used to promote bone formation, however the systemic use of Protos has been linked to serious cardiovascular and venous thromboembolic events, thus local delivery strategies may be better suited for this purpose. In this study, a biodegradable, and biocompatible nanocarrier "polybutylcyanoacrylate" (PBCA) loaded with strontium was constructed and its ability to promote bone formation was assessed. METHODOLOGY PBCA nanoparticles loaded with strontium (PBCA-Sr NPs) were synthesized using the emulsion polymerization method, and their physical properties (zeta potential, size and shape) and entrapment efficiency were characterized. Committed MSCs (osteoblasts) were derived from the differentiation of cultured rat mesenchymal stem cells (MSC), which were tested with the PBCA-Sr NPs for cytotoxicity, inflammatory response, bone formation and mineralization. Scanning electron microscopy was performed following a 7-day treatment of PBCA-Sr NPs on decellularized procaine mandibular bone blocks grafted with osteoblasts. RESULTS Spherical PBCA-Sr NPs of 166.7 ± 2.3 nm, zeta potential of -1.15 ± 0.28 mV with a strontium loading efficiency of 90.04 ± 3.27% were constructed. The presence of strontium was confirmed by energy-dispersive X-ray spectroscopy. Rat committed MSCs incubated in PBCA-Sr NPs for 24 hrs showed viabilities in excess of 90% for concentrations of up to 250 ug/mL, the cellular expression of osteocalcin and alkaline phosphatase were 1.4 and 1.3 times higher than the untreated control, and significantly higher than those treated with strontium alone. Bone formation was evident following osteoblast engraftment on the decellularized procaine mandibular bone block with PBCA-Sr NPs, which appeared superior to those treated with strontium alone. CONCLUSION Treatment of committed MSCs with PBCA-Sr NPs showed higher expression of markers of bone formation when compared with strontium alone and which corresponded to greater degree of bone formation observed on the 3-dimensinal decellularized procaine mandibular bone block. Further quantitative analysis on the extent of new bone formation is warranted.
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Affiliation(s)
- Li-Ching Chang
- Department of Dentistry, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan;
- Department of Nursing, Chang Gung University of Science and Technology, Chiayi 61363, Taiwan
| | - Chiu-Yen Chung
- Department of Neurosurgery, Chang Gung Memorial Hospital, Chiayi Branch, 6, Sec. West, Chai-Pu Road, Pu-Tz City, Chia-Yi 61363, Taiwan;
| | - Chun-Hui Chiu
- Graduate Institute of Health-Industry Technology, Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Tao-Yuan 33303, Taiwan;
- Department of Traditional Chinese Medicine, Keelung Chang Gung Memorial Hospital, Keelung 20401, Taiwan
| | - Martin Hsiu-Chu Lin
- Department of Neurosurgery, Chang Gung Memorial Hospital, Chiayi Branch, 6, Sec. West, Chai-Pu Road, Pu-Tz City, Chia-Yi 61363, Taiwan;
| | - Jen-Tsung Yang
- Department of Neurosurgery, Chang Gung Memorial Hospital, Chiayi Branch, 6, Sec. West, Chai-Pu Road, Pu-Tz City, Chia-Yi 61363, Taiwan;
- College of Medicine, Chang Gung University, Tao-Yuan 33302, Taiwan
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16
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Sarathi V, Umamahesh R, Ahmed MH, Rai K, Chaithanya HB. Blood Toxic Element Levels in Children from South Coastal Andhra Pradesh. Indian J Pediatr 2021; 88:383. [PMID: 33245483 DOI: 10.1007/s12098-020-03586-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/24/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Vijaya Sarathi
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Center, Bengaluru, Karnataka, India.
| | - Ramisetty Umamahesh
- Department of Pediatrics, Narayana Medical College and Hospital, Andhra Pradesh, Nellore, India
| | - Md Hafiez Ahmed
- Department of Pediatrics, Narayana Medical College and Hospital, Andhra Pradesh, Nellore, India
| | - Kajal Rai
- Analytical Chemistry Division, Thyrocare Technologies Limited, Navi Mumbai, Maharashtra, India
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Curtis EM, Cooper C, Harvey NC. Cardiovascular safety of calcium, magnesium and strontium: what does the evidence say? Aging Clin Exp Res 2021; 33:479-494. [PMID: 33565045 PMCID: PMC7943433 DOI: 10.1007/s40520-021-01799-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 01/13/2021] [Indexed: 12/20/2022]
Abstract
Calcium, magnesium and strontium have all been implicated in both musculoskeletal and cardiovascular health and disease. However, despite these three elements being closely chemically related, there is marked heterogeneity of their characteristics in relation to cardiovascular outcomes. In this narrative review, we describe the relevant evidential landscape, focusing on clinical trials where possible and incorporating findings from observational and causal analyses, to discern the relative roles of these elements in musculoskeletal and cardiovascular health. We conclude that calcium supplementation (for bone health) is most appropriately used in combination with vitamin D supplementation and targeted to those who are deficient in these nutrients, or in combination with antiosteoporosis medications. Whilst calcium supplementation is associated with gastrointestinal side effects and a small increased risk of renal stones, purported links with cardiovascular outcomes remain unconvincing. In normal physiology, no mechanism for an association has been elucidated and other considerations such as dose response and temporal relationships do not support a causal relationship. There is little evidence to support routine magnesium supplementation for musculoskeletal outcomes; greater dietary intake and serum concentrations appear protective against cardiovascular events. Strontium ranelate, which is now available again as a generic medication, has clear anti-fracture efficacy but is associated with an increased risk of thromboembolic disease. Whilst a signal for increased risk of myocardial infarction has been detected in some studies, this is not supported by wider analyses. Strontium ranelate, under its current licence, thus provides a useful therapeutic option for severe osteoporosis in those who do not have cardiovascular risk factors.
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Affiliation(s)
- Elizabeth M Curtis
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, SO16 6YD, UK
- Rheumatology Department, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, SO16 6YD, UK
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton General Hospital, Southampton, SO16 6YD, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.
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18
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Salamanna F, Gambardella A, Contartese D, Visani A, Fini M. Nano-Based Biomaterials as Drug Delivery Systems Against Osteoporosis: A Systematic Review of Preclinical and Clinical Evidence. NANOMATERIALS 2021; 11:nano11020530. [PMID: 33669621 PMCID: PMC7922277 DOI: 10.3390/nano11020530] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/10/2021] [Accepted: 02/16/2021] [Indexed: 12/16/2022]
Abstract
Osteoporosis (OP) is one of the most significant causes of morbidity, particularly in post-menopausal women and older men. Despite its remarkable occurrence, the search for an effective treatment is still an open challenge. Here, we systematically reviewed the preclinical and clinical progress in the development of nano-based materials as drug delivery systems against OP, considering the effects on bone healing and regeneration, the more promising composition and manufacturing methods, and the more hopeful drugs and delivery methods. The results showed that almost all the innovative nano-based delivery systems developed in the last ten years have been assessed by preclinical investigations and are still in the preliminary/early research stages. Our search strategy retrieved only one non-randomized controlled trial (RCT) on oligosaccharide nanomedicine of alginate sodium used for degenerative lumbar diseases in OP patients. Further investigations are mandatory for assessing the clinical translation and commercial purposes of these materials. To date, the main limits for the clinical translation of nano-based materials as drug delivery systems against OP are probably due to the low reproducibility of the manufacturing processes, whose specificity and complexity relies on an adequate chemical, structural, and biomechanical characterization, as the necessary prerequisite before assessing the efficacy of a given treatment or process. Finally, an unsatisfactory drug-loading capacity, an uncontrollable release kinetic, and a low delivery efficiency also limit the clinical application.
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19
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Rozenberg S, Al-Daghri N, Aubertin-Leheudre M, Brandi ML, Cano A, Collins P, Cooper C, Genazzani AR, Hillard T, Kanis JA, Kaufman JM, Lambrinoudaki I, Laslop A, McCloskey E, Palacios S, Prieto-Alhambra D, Reginster JY, Rizzoli R, Rosano G, Trémollieres F, Harvey NC. Is there a role for menopausal hormone therapy in the management of postmenopausal osteoporosis? Osteoporos Int 2020; 31:2271-2286. [PMID: 32642851 PMCID: PMC7661391 DOI: 10.1007/s00198-020-05497-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/04/2020] [Indexed: 12/21/2022]
Abstract
We provide an evidence base and guidance for the use of menopausal hormone therapy (MHT) for the maintenance of skeletal health and prevention of future fractures in recently menopausal women. Despite controversy over associated side effects, which has limited its use in recent decades, the potential role for MHT soon after menopause in the management of postmenopausal osteoporosis is increasingly recognized. We present a narrative review of the benefits versus risks of using MHT in the management of postmenopausal osteoporosis. Current literature suggests robust anti-fracture efficacy of MHT in patients unselected for low BMD, regardless of concomitant use with progestogens, but with limited evidence of persisting skeletal benefits following cessation of therapy. Side effects include cardiovascular events, thromboembolic disease, stroke and breast cancer, but the benefit-risk profile differs according to the use of opposed versus unopposed oestrogens, type of oestrogen/progestogen, dose and route of delivery and, for cardiovascular events, timing of MHT use. Overall, the benefit-risk profile supports MHT treatment in women who have recently (< 10 years) become menopausal, who have menopausal symptoms and who are less than 60 years old, with a low baseline risk for adverse events. MHT should be considered as an option for the maintenance of skeletal health in women, specifically as an additional benefit in the context of treatment of menopausal symptoms, when commenced at the menopause, or shortly thereafter, in the context of a personalized benefit-risk evaluation.
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Affiliation(s)
- S Rozenberg
- Department of Obstetrics and Gynecology CHU St Pierre, Université Libre de Bruxelles, Vrije Universiteit, Brussels, Belgium
| | - N Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - M Aubertin-Leheudre
- Department of Physical Activity Sciences, Faculty of Sciences, Université du Québec à Montréal, CRIUGM, Montreal, Québec, Canada
| | - M-L Brandi
- Department of Biochemical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
- Unit of Bone and Mineral Diseases, University Hospital of Florence, Florence, Italy
| | - A Cano
- Department of Obstetrics and Gynecology, University of Valencia and INCLIVA Health Research Institute, Valencia, Spain
| | - P Collins
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, Royal Brompton Campus, Sydney Street, London, UK
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, UK
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - A R Genazzani
- Division of Obstetrics and Gynecology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - T Hillard
- Department of Obstetrics & Gynaecology, Poole Hospital NHS Trust, Poole, UK
| | - J A Kanis
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, Sheffield, UK
| | - J-M Kaufman
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - I Lambrinoudaki
- Menopause Unit, 2nd Department of Obstetrics and Gynecology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - A Laslop
- Scientific Office, Federal Office for Safety in Health Care, Vienna, Austria
| | - E McCloskey
- Centre for Integrated research in Musculoskeletal Ageing, Mellanby Centre for Bone Research, Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - S Palacios
- Director of Palacios Institute of Women's Health, Madrid, Spain
| | - D Prieto-Alhambra
- Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - J-Y Reginster
- WHO Collaborating Center for Public Health Aspects of Musculoskeletal Health and Aging, Division of Public Health, Epidemiology and Health Economics, University of Liège, Liege, Belgium
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - R Rizzoli
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | | | - F Trémollieres
- Menopause Center, Hôpital Paule de Viguier, University Hospital of Toulouse and INSERM U1048-I2MC-Equipe 9, Toulouse, France
| | - N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, UK.
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Zheng Z, Yu C, Wei H. Injectable Hydrogels as Three-Dimensional Network Reservoirs for Osteoporosis Treatment. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:430-454. [PMID: 33086984 DOI: 10.1089/ten.teb.2020.0168] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Despite tremendous progresses made in the field of tissue engineering over the past several decades, it remains a significant challenge for the treatment of osteoporosis (OP) due to the lack of appropriate carriers to improve the bioavailability of therapeutic agents and the unavailability of artificial bone matrix with desired properties for the replacement of damaged bone regions. Encouragingly, the development of injectable hydrogels for the treatment of OP has attracted increasing attention in recent years because they can serve either as a reservoir for various therapeutic species or as a perfect filler for bone injuries with irregular shapes. However, the relationship between the complicated pathological mechanism of OP and the properties of diverse polymeric materials lacks elucidation, which clearly hampers the clinical application of injectable hydrogels for the efficient treatment of OP. To clarify this relationship, this article summarized both localized and systematic treatment of OP using an injectable hydrogel-based strategy. Specifically, the pathogenesis of OP and the limitations of current treatment approaches were first analyzed. We further focused on the use of hydrogels loaded with various therapeutic substances following a classification standard of the encapsulated cargoes for OP treatment with an emphasis on the application and precautions of each category. A concluding remark on existing challenges and future directions of this rapidly developing research area was finally made. Impact statement Effective osteoporosis (OP) treatment remains a significant challenge due substantially to the unavailability of appropriate drug carriers and artificial matrices with desired properties to promote bone repair and replace damaged regions. For this purpose, this review focused on the development of diverse injectable hydrogel systems for the delivery of various therapeutic agents, including drugs, stem cells, and nucleic acids, for effective increase in bone mass and favorable osteogenesis. The summarized important guidelines are believed to promote clinical development and translation of hydrogels for the efficient treatment of OP and OP-related bone damages toward improved life quality of millions of patients.
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Affiliation(s)
- Zhi Zheng
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study and School of Pharmaceutical Science, University of South China, Hengyang, China
| | - Cuiyun Yu
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study and School of Pharmaceutical Science, University of South China, Hengyang, China
| | - Hua Wei
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study and School of Pharmaceutical Science, University of South China, Hengyang, China
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Interleukin-4 assisted calcium-strontium-zinc-phosphate coating induces controllable macrophage polarization and promotes osseointegration on titanium implant. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111512. [PMID: 33255069 PMCID: PMC7493725 DOI: 10.1016/j.msec.2020.111512] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/20/2020] [Accepted: 09/04/2020] [Indexed: 12/12/2022]
Abstract
Titanium (Ti) and its alloys are believed to be promising scaffold materials for dental and orthopedic implantation due to their ideal mechanical properties and biocompatibility. However, the host immune response always causes implant failures in the clinic. Surface modification of the Ti scaffold is an important factor in this process and has been widely studied to regulate the host immune response and to further promote bone regeneration. In this study, a calcium-strontium-zinc-phosphate (CSZP) coating was fabricated on a Ti implant surface by phosphate chemical conversion (PCC) technique, which modified the surface topography and element constituents. Here, we envisioned an accurate immunomodulation strategy via delivery of interleukin (IL)-4 to promote CSZP-mediated bone regeneration. IL-4 (0 and 40 ng/mL) was used to regulate immune response of macrophages. The mechanical properties, biocompatibility, osteogenesis, and anti-inflammatory properties were evaluated. The results showed that the CSZP coating exhibited a significant enhancement in surface roughness and hydrophilicity, but no obvious changes in proliferation or apoptosis of bone marrow mesenchymal stem cells (BMMSCs) and macrophages. In vitro, the mRNA and protein expression of osteogenic related factors in BMMSCs cultured on a CSZP coating, such as ALP and OCN, were significantly higher than those on bare Ti. In vivo, there was no enhanced bone formation but increased macrophage type 1 (M1) polarization on the CSZP coating. IL-4 could induce M2 polarization and promote osteogenesis of BMMSCs on CSZP in vivo and in vitro. In conclusion, the CSZP coating is an effective scaffold for BMMSCs osteogenesis, and IL-4 presents the additional advantage of modulating the immune response for bone regeneration on the CSZP coating in vivo. A chemical conversion calcium-strontium-zinc-phosphate (CSZP) coating is prepared on titanium. The CSZP coating exhibits micellar lamellar crystal morphology in micro-nano scale. The CSZP coating has an optimal topography and element composition for osteogenesis. Interleukin-4 assisted CSZP coating can obtain better osteoimmunomodulation properties.
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Li Y, Chen M, Zhou W, Gao S, Luo X, Peng L, Yan J, Wang P, Li Q, Zheng Y, Liu S, Cheng Y, Guo Q. Cell-free 3D wet-electrospun PCL/silk fibroin/Sr 2+ scaffold promotes successful total meniscus regeneration in a rabbit model. Acta Biomater 2020; 113:196-209. [PMID: 32561472 DOI: 10.1016/j.actbio.2020.06.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/06/2020] [Accepted: 06/10/2020] [Indexed: 01/09/2023]
Abstract
Considering the intrinsic poor self-healing capacity of meniscus, tissue engineering has become a new direction for the treatment of meniscus lesions. However, disturbed by mechanical stability and biocompatibility, most meniscus implants fail to relieve symptoms and prevent the development of osteoarthritis. The goal of this study was to develop a potential meniscal substitute for clinical application. Here, silk fibroin with good mechanical performance and biocompatibility, and strontium ion acting as bioactive factor, were incorporated with Ɛ-Polycaprolactone to fabricate a meniscus scaffold (SP-Sr). By the wet-electrospun method, the 3D SP-Sr provided suitable pore size (100-200 μm) and enough mechanical support (61.6 ± 2.9 MPa for tensile modulus and 0.11 ± 0.03 MPa for compressive modulus). Moreover, after addition of Sr2+, the SP-Sr seeded by rabbit adipose tissue-derived stromal cells (rADSCs) showed the highest secretion with 2.61- and 2.98-fold increase in collagen and aggrecan, respectively, compared with SF/PCL group. And the extracellular matrix related genes expression in SP-Sr also showed upregulation results. Particularly, the expression of the collagen II gene, which played a crucial role in the formation of meniscal inner avascular region, showed a 9-fold increase in SP-Sr compared with pure PCL group. Furthermore, the MRI results of SP-Sr implanted in rabbits with total meniscectomy for 6 months demonstrated effective prevention of meniscus extrusion and relieving joint space narrowing compared with meniscectomy group. And the effects of cartilage protection and delaying osteoarthritis development were confirmed by Pathological examination. Especially, after 6-month implantation, the neo-menisci showed similar structural constituent and mechanical performance. STATEMENT OF SIGNIFICANCE: Meniscus regeneration faces great challenge due to the meniscus having limited healing potential owing to its anisotropic structure, its hypocellularity and hypovascularity. The present tissue engineering solutions have failed to maintain the biological function for meniscus reconstruction in vivo because of fragile and poor biocompatible materials, leading to long-term joint degeneration. The goal of this study was to develop a meniscal substitute potential for clinical application. Here, silk fibroin and strontium were incorporated with Ɛ-Polycaprolactone by wet-electrospinning method to fabricate a meniscus scaffold (SP-Sr). The 6-month implantation results revealed that SP-Sr scaffold was effective in preventing meniscus extrusion, cartilage protection and delaying osteoarthritis development, and the regenerated menisci showed similar structural constituent and mechanical performance.
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Affiliation(s)
- Yangyang Li
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Haidian District Chengfu Road No.205, Beijing 100871, China
| | - Mingxue Chen
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, No. 31 Xinjiekou East Street, Xicheng District, Beijing 100035, China
| | - Wenhao Zhou
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Haidian District Chengfu Road No.205, Beijing 100871, China
| | - Shuang Gao
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Haidian District Chengfu Road No.205, Beijing 100871, China
| | - Xujiang Luo
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Liqing Peng
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Jianglong Yan
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Haidian District Chengfu Road No.205, Beijing 100871, China
| | - Pei Wang
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Haidian District Chengfu Road No.205, Beijing 100871, China
| | - Qiyao Li
- Department of Biomedical Engineering, Materials Research Institute, Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Shuyun Liu
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
| | - Yan Cheng
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Haidian District Chengfu Road No.205, Beijing 100871, China.
| | - Quanyi Guo
- Institute of Orthopedics, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Lab of Musculoskeletal Trauma & War Injuries in PLA, Chinese PLA General Hospital, Beijing 100853, China
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De Bonis A, Uskoković V, Barbaro K, Fadeeva I, Curcio M, Imperatori L, Teghil R, Rau JV. Pulsed laser deposition temperature effects on strontium-substituted hydroxyapatite thin films for biomedical implants. Cell Biol Toxicol 2020; 36:537-551. [PMID: 32377851 DOI: 10.1007/s10565-020-09527-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 04/14/2020] [Indexed: 02/08/2023]
Abstract
Substituting small molecule drugs with abundant and easily affordable ions may have positive effects on the way countless disease treatments are approached. The interest in strontium cation in bone therapies soared in the wake of the success of strontium ranelate in the treatment of osteoporosis. A new method for producing thin strontium-containing hydroxyapatite (Sr-HA, Ca9Sr(PO4)6(OH)2) films as coatings that render bioinert titanium implant bioactive is reported here. The method is based on the combination of a mechanochemical synthesis of Sr-HA targets and their deposition in form of thin films on top of titanium with the use of laser ablation at low pressure. The films were 1-2 μm in thickness and their formation was studied at different temperatures, including 25, 300, and 500 °C. Highly crystalline Sr-HA target transformed during pulsed laser deposition to a fully amorphous film, whose degree of long-range order recovered with temperature. Particle edges became somewhat sharper and surface roughness moderately increased with temperature, but the (Ca+Sr)/P atomic ratio, which increased 1.5 times during the film formation, remained approximately constant at different temperatures. Despite the mostly amorphous structure of the coatings, their affinity for capturing atmospheric carbon dioxide and accommodating it as carbonate ions that replace both phosphates and hydroxyls of HA was confirmed in an X-ray photoelectron spectroscopic analysis. As the film deposition temperature increased, the lattice voids got reduced in concentration and the structure gradually "closed," becoming more compact and entailing a linear increase in microhardness with temperature, by 0.03 GPa/°C for the entire 25-500 °C range. Biocompatibility and bioactivity of Sr-HA thin films deposited on titanium were confirmed in an interaction with dental pulp stem cells, suggesting that these coatings, regardless of the processing temperature, may be viable candidates for the surface components of metallic bone implants.
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Affiliation(s)
- Angela De Bonis
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Vuk Uskoković
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Engineering Gateway 4200, Irvine, CA, 92697, USA
| | - Katia Barbaro
- Istituto Zooprofilattico Sperimentale Lazio e Toscana "M. Aleandri", Via Appia Nuova, 1411, 00178, Rome, Italy
| | - Inna Fadeeva
- AA Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky prospect 49, Moscow, Russia, 119991
| | - Mariangela Curcio
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Luca Imperatori
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133, Rome, Italy
| | - Roberto Teghil
- Dipartimento di Scienze, Università della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133, Rome, Italy.
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Miranda TS, Napimoga MH, De Franco L, Marins LM, Malta FDS, Pontes LA, Morelli FM, Duarte PM. Strontium ranelate improves alveolar bone healing in estrogen‐deficient rats. J Periodontol 2020; 91:1465-1474. [DOI: 10.1002/jper.19-0561] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/13/2019] [Accepted: 01/24/2020] [Indexed: 11/07/2022]
Affiliation(s)
| | - Marcelo Henrique Napimoga
- Faculdade São Leopoldo Mandic Instituto São Leopoldo Mandic Área de Imunologia Campinas São Paulo Brazil
| | - Leonardo De Franco
- Department of Periodontology Dental Research Division Guarulhos University Guarulhos São Paulo Brazil
| | - Letícia Macedo Marins
- Department of Periodontology Dental Research Division Guarulhos University Guarulhos São Paulo Brazil
| | - Fernando de Souza Malta
- Department of Periodontology Dental Research Division Guarulhos University Guarulhos São Paulo Brazil
| | - Louise Antonialice Pontes
- Department of Periodontology Dental Research Division Guarulhos University Guarulhos São Paulo Brazil
| | - Fernando Mendes Morelli
- Faculdade São Leopoldo Mandic Instituto São Leopoldo Mandic Área de Imunologia Campinas São Paulo Brazil
| | - Poliana Mendes Duarte
- Department of Periodontology Dental Research Division Guarulhos University Guarulhos São Paulo Brazil
- Department of Periodontology College of Dentistry University of Florida Gainesville FL
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25
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Imazato S, Kohno T, Tsuboi R, Thongthai P, Xu HH, Kitagawa H. Cutting-edge filler technologies to release bio-active components for restorative and preventive dentistry. Dent Mater J 2020; 39:69-79. [PMID: 31932551 DOI: 10.4012/dmj.2019-350] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Advancements in materials used for restorative and preventive treatment is being directed toward "bio-active" functionality. Incorporation of filler particles that release active components is a popular method to create bio-active materials, and many approaches are available to develop fillers with the ability to release components that provide "bio-protective" or "bio-promoting" properties; e.g. metal/calcium phosphate nanoparticles, multiple ion-releasing glass fillers, and non-biodegradable polymer particles. In this review paper, recent developments in cutting-edge filler technologies to release bio-active components are addressed and summarized according to their usefulness and functions, including control of bacterial infection, tooth strengthening, and promotion of tissue regeneration.
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Affiliation(s)
- Satoshi Imazato
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry.,Department of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry
| | - Tomoki Kohno
- Department of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry
| | - Ririko Tsuboi
- Department of Advanced Functional Materials Science, Osaka University Graduate School of Dentistry
| | - Pasiree Thongthai
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
| | - Hockin Hk Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry
| | - Haruaki Kitagawa
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
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26
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27
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Rocha JC, Sihn LM, Uchiyama MK, Ribeiro MA, Franco MP, Braga AAC, Silveira AT, Toma HE. On the Amazing Reactivity of the Ranelate Ion: New Applications of an Old Antiosporotic Drug. ChemistrySelect 2019. [DOI: 10.1002/slct.201904149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Julio C. Rocha
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
| | - Luca M. Sihn
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
| | - Mayara K. Uchiyama
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
| | | | - Maurício P. Franco
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
| | - Ataualpa A. C. Braga
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
| | - Alceu T. Silveira
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
| | - Henrique E. Toma
- Department of chemistryInstitute of ChemistryUniv. São Paulo 05508-000 São Paulo Brazil
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28
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The NATO project: nanoparticle-based countermeasures for microgravity-induced osteoporosis. Sci Rep 2019; 9:17141. [PMID: 31748575 PMCID: PMC6868153 DOI: 10.1038/s41598-019-53481-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/23/2019] [Indexed: 12/20/2022] Open
Abstract
Recent advances in nanotechnology applied to medicine and regenerative medicine have an enormous and unexploited potential for future space and terrestrial medical applications. The Nanoparticles and Osteoporosis (NATO) project aimed to develop innovative countermeasures for secondary osteoporosis affecting astronauts after prolonged periods in space microgravity. Calcium- and Strontium-containing hydroxyapatite nanoparticles (nCa-HAP and nSr-HAP, respectively) were previously developed and chemically characterized. This study constitutes the first investigation of the effect of the exogenous addition of nCa-HAP and nSr-HAP on bone remodeling in gravity (1 g), Random Positioning Machine (RPM) and onboard International Space Station (ISS) using human bone marrow mesenchymal stem cells (hBMMSCs). In 1 g conditions, nSr-HAP accelerated and improved the commitment of cells to differentiate towards osteoblasts, as shown by the augmented alkaline phosphatase (ALP) activity and the up-regulation of the expression of bone marker genes, supporting the increased extracellular bone matrix deposition and mineralization. The nSr-HAP treatment exerted a protective effect on the microgravity-induced reduction of ALP activity in RPM samples, and a promoting effect on the deposition of hydroxyapatite crystals in either ISS or 1 g samples. The results indicate the exogenous addition of nSr-HAP could be potentially used to deliver Sr to bone tissue and promote its regeneration, as component of bone substitute synthetic materials and additive for pharmaceutical preparation or food supplementary for systemic distribution.
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29
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Nguyen TDT, Jang YS, Kim YK, Kim SY, Lee MH, Bae TS. Osteogenesis-Related Gene Expression and Guided Bone Regeneration of a Strontium-Doped Calcium-Phosphate-Coated Titanium Mesh. ACS Biomater Sci Eng 2019; 5:6715-6724. [PMID: 33423489 DOI: 10.1021/acsbiomaterials.9b01042] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Guided bone regeneration using a perforated titanium membrane is actively used in oral and orthopedic surgeries to provide space for the subsequent filling of a new bone in the case of bone defects and to achieve proper bone augmentation and reconstruction. The surface modification of a titanium membrane using a strontium-substituted calcium phosphate coating has become a popular trend to provide better bioactivity and biocompatibility on the membrane for improving the bone regeneration because strontium can stimulate not only the differentiation of osteoblasts but also inhibit the differentiation of osteoclasts. The strontium-doped calcium phosphate coating on the titanium mesh was formed by the cyclic precalcification method, and its effects on bone regeneration were evaluated by in vitro analysis of osteogenesis-related gene expression and in vivo evaluation of osteogenesis of the titanium mesh using the rat calvarial defect model in this study. It was identified that the strontium-doped calcium phosphate-treated mesh showed a higher expression of all genes related to osteogenesis in the osteoblast cells and resulted in new bone formation with better osseointegration with the mesh in the rat calvarial defect, in comparison with the results of untreated and calcium phosphate-treated meshes.
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Affiliation(s)
- Thuy-Duong Thi Nguyen
- Faculty of Odonto-Stomatology, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen Street, Hue City, Thua Thien Hue 530000, Vietnam
| | - Yong-Seok Jang
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience, BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, South Korea
| | - Yu-Kyoung Kim
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience, BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, South Korea
| | - Seo-Young Kim
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience, BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, South Korea
| | - Min-Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience, BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, South Korea
| | - Tae-Sung Bae
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience, BK21 Plus Project, School of Dentistry, Jeonbuk National University, 567, Baekje-daero, Deokjin-gu, Jeonju 54896, Jeollabuk-do, South Korea
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30
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Development and Validation of an UV-Spectrophotometric Method for the Assay of Strontium Ranelate and HPLC Stability Testing from Bulk and Pharmaceutical Dosage Form. ACTA MEDICA MARISIENSIS 2019. [DOI: 10.2478/amma-2019-0014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Objective: The present work offers a fast, reliable and easy UV spectrophotometric method for the assay of strontium ranelate from bulk samples and pharmaceutical dosage form.
Methods: The proposed method uses 0.1% V/V trichloroacetic acid as dissolution medium for spectrophotometric analysis, by signal detection at 321 nm. The method was validated according to the currently in-force international guidelines for linearity, accuracy, precision, robustness, limit of detection and quantification.
Results: The method was found to be linear in the range of 5-100 µg mL-1 (R2 > 0.999). Method accuracy was found in-between 98.87-100.41%, showing good linear correlation as well (R2 = 0.9997). The concentrations for limit of detection and limit of quantitation were found 1.13 µg mL-1 and 3.77 µg mL-1, resp. The proposed method showed good intra- and interday precision, with low RSD values of 0.53-1.24% and 1.11%, resp.
Conclusions: Stability studies performed by both HPLC and UV spectrophotometric methods revealed that the active substance is highly susceptible to acidic hydrolysis, oxidation and exposure to high temperature.
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Stem cells in Osteoporosis: From Biology to New Therapeutic Approaches. Stem Cells Int 2019; 2019:1730978. [PMID: 31281368 PMCID: PMC6589256 DOI: 10.1155/2019/1730978] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/21/2019] [Accepted: 04/23/2019] [Indexed: 12/11/2022] Open
Abstract
Osteoporosis is a systemic disease that affects the skeleton, causing reduction of bone density and mass, resulting in destruction of bone microstructure and increased risk of bone fractures. Since osteoporosis is a disease affecting the elderly and the aging of the world's population is constantly increasing, it is expected that the incidence of osteoporosis and its financial burden on the insurance systems will increase continuously and there is a need for more understanding this condition in order to prevent and/or treat it. At present, available drug therapy for osteoporosis primarily targets the inhibition of bone resorption and agents that promote bone mineralization, designed to slow disease progression. Safe and predictable pharmaceutical means to increase bone formation have been elusive. Stem cell therapy of osteoporosis, as a therapeutic strategy, offers the promise of an increase in osteoblast differentiation and thus reversing the shift towards bone resorption in osteoporosis. This review is focused on the current views regarding the implication of the stem cells in the cellular and physiologic mechanisms of osteoporosis and discusses data obtained from stem cell-based therapies of osteoporosis in experimental animal models and the possibility of their future application in clinical trials.
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Cheng Y, Huang L, Wang Y, Huo Q, Shao Y, Bao H, Li Z, Liu Y, Li X. Strontium promotes osteogenic differentiation by activating autophagy via the the AMPK/mTOR signaling pathway in MC3T3‑E1 cells. Int J Mol Med 2019; 44:652-660. [PMID: 31173178 PMCID: PMC6605659 DOI: 10.3892/ijmm.2019.4216] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 05/24/2019] [Indexed: 12/23/2022] Open
Abstract
Strontium (Sr) is an alkaline earth metal that exerts the dual effect of improving bone formation and suppressing bone resorption, resulting in increased bone apposition rates and bone mineral density. However, the mechanisms through which Sr exerts these beneficial effects on bone have yet to be fully elucidated. The present study aimed to reveal the underlying molecular mechanisms associated with Sr‑induced osteogenic differentiation. The effects of Sr on cell proliferation and osteogenic differentiation were analyzed by MTT assay, RT‑qPCR, western blot analysis, alkaline phosphatase (ALP) and Alizarin red staining assays. The extent of autophagy was determined by monodansylcadaverine (MDC) staining and western blot analysis of two markers of cellular autophagic activity, the steatosis‑associated protein, sequestosome‑1 (SQSTM1/p62), and the two isoforms of microtubule‑associated protein 1 light chain 3 (LC3), LC‑3‑I/II. The expression levels of AMP‑activated protein kinase (AMPK) and mammalian target of rapamycin (mTOR) were also detected by western blot analysis. Sr at a concentration of 3 mM exerted the most pronounced effect on osteogenic differentiation, without any apparent cell toxicity. At the same time, cellular autophagy was active during this process. Subsequently, autophagy was blocked by 3‑methyladenine, and the enhancement of osteogenic differentiation in response to Sr was abrogated. Additionally, the phosphorylation level of AMPK was significantly increased, whereas that of mTOR was significantly decreased, in the Sr‑treated group. Taken together, the findings of the present study demonstrate that Sr stimulates AMPK‑activated autophagy to induce the osteogenic differentiation of MC3T3‑E1 cells.
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Affiliation(s)
- You Cheng
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Lunhui Huang
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yichao Wang
- Department of Clinical Laboratory Medicine, Taizhou University Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Qianyu Huo
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yanhong Shao
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Huijing Bao
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Zhaoyang Li
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
| | - Yunde Liu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xue Li
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
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Yu Y, Xu Q, He S, Xiong H, Zhang Q, Xu W, Ricotta V, Bai L, Zhang Q, Yu Z, Ding J, Xiao H, Zhou D. Recent advances in delivery of photosensitive metal-based drugs. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.020] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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34
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Fabrication of strontium-releasable inorganic cement by incorporation of bioactive glass. Dent Mater 2019; 35:780-788. [DOI: 10.1016/j.dental.2019.02.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 02/13/2019] [Indexed: 02/06/2023]
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35
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Pei Y, Zheng K, Shang G, Wang Y, Wang W, Qiu E, Li S, Zhang X. Therapeutic Effect of Strontium Ranelate on Bone in Chemotherapy-Induced Osteopenic Rats via Increased Bone Volume and Reduced Bone Loss. Biol Trace Elem Res 2019; 187:472-481. [PMID: 29882118 DOI: 10.1007/s12011-018-1401-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/29/2018] [Indexed: 11/25/2022]
Abstract
The purpose of this study was to determine whether treatment with strontium ranelate (SrR) can restore bone mass and strength at a skeletal site with established osteopenia in chemotherapy-induced rats. Forty-five Sprague-Dawley male rats were randomly assigned to three study groups (n = 15 rats per group): normal rats (control group), osteopenic rats (chemo group), and osteopenic rats with SrR (chemo-SrR group). We chose a male rat model that mimicked a clinical setting by weekly intravenous injection of cyclophosphamide at 20 mg/kg. The control and chemo groups were maintained without treatment, and the chemo-SrR group was intragastrically administered strontium ranelate at a dosage of 900 mg/kg/day. All animals were fed a standard laboratory diet, and blood samples were collected for biochemical analysis. After 12 weeks of treatment, micro-CT, biomechanical testing, and histomorphometry were examined. In addition, bone samples were obtained to evaluate the content of mineral substances in bones. SrR treatment of chemo rats significantly increased tibial trabecular bone volume, trabecular thickness, and BV/TV. Serum levels of the bone formation marker alkaline phosphatase (ALP) in the SrR group were significantly higher than those in the chemo animals, which was accompanied by an increase in the bone mineral content, bone calcium and phosphate, as well as reduced serum Ca and P concentrations. The serum level of tartrate-resistant acid phosphatase (TRAP) in the SrR treatment group showed no obvious changes. Histomorphological analyses revealed that chemotherapy resulted in decreased osteoclast number, which may be due to the inhibition of bone turnover. However, SrR treatment enhanced the number of osteoblasts while restoring bone mass and improving bone strength in chemo rats. Therefore, the results of this study indicate that SrR treatment has a positive effect on bone in chemotherapy-induced osteoporosis.
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Affiliation(s)
- Yi Pei
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - Ke Zheng
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - GuanNing Shang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - YuMing Wang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - Wei Wang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - EnDuo Qiu
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - ShenLong Li
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China
| | - XiaoJing Zhang
- Department of Bone and Soft Tissue Surgery, Liaoning Cancer Hospital & Institute, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, People's Republic of China.
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Álvarez-Lloret P, Fernández JM, Molinuevo MS, Lino AB, Ferretti JL, Capozza RF, Cortizo AM, McCarthy AD. Multi-Scale Approach for the Evaluation of Bone Mineralization in Strontium Ranelate-Treated Diabetic Rats. Biol Trace Elem Res 2018; 186:457-466. [PMID: 29623650 DOI: 10.1007/s12011-018-1322-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 03/21/2018] [Indexed: 11/27/2022]
Abstract
Long-term diabetes mellitus can induce osteopenia and osteoporosis, an increase in the incidence of low-stress fractures, and/or delayed fracture healing. Strontium ranelate (SrR) is a dual-action anti-osteoporotic agent whose use in individuals with diabetic osteopathy has not been adequately evaluated. In this study, we studied the effects of an oral treatment with SrR and/or experimental diabetes on bone composition and biomechanics. Young male Wistar rats (half non-diabetic, half with streptozotocin/nicotinamide-induced diabetes) were either untreated or orally administered 625 mg/kg/day of SrR for 6 weeks. After sacrifice, femora from all animals were evaluated by a multi-scale approach (X-ray diffraction, Fourier transform infrared spectroscopy, inductively coupled plasma optical-emission spectrometry, static histomorphometry, pQCT, and mechanical testing) to determine chemical, crystalline, and biomechanical properties. Untreated diabetic animals (versus untreated non-diabetic) showed a decrease in femoral mineral carbonate content, in cortical thickness and BMC, in trabecular osteocyte density, in maximum load supported at rupture and at yield point, and in overall toughness at mid-shaft. Treatment of diabetic animals with SrR further affected several parameters of bone (some already impaired by diabetes): crystallinity index (indicating less mature apatite crystals); trabecular area, BMC, and vBMD; maximum load at yield point; and structural elastic rigidity. However, SrR was also able to prevent the diabetes-induced decreases in trabecular osteocyte density (completely) and in bone ultimate strength at rupture (partially). Our results indicate that SrR treatment can partially but significantly prevent some bone structural mechanical properties as previously affected by diabetes, but not others (which may even be worsened).
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Affiliation(s)
- Pedro Álvarez-Lloret
- Departament of Geology, University of Oviedo, C/Jesús Arias de Velasco, s/n, 33005, Oviedo, Spain
| | - Juan Manuel Fernández
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - María Silvina Molinuevo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - Agustina Berenice Lino
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - José Luis Ferretti
- Centro de Estudios del Metabolismo Fosfocálcico (CeMFoC), Facultad de Medicina, Universidad Nacional de Rosario, 2000, Rosario, Argentina
| | - Ricardo Francisco Capozza
- Centro de Estudios del Metabolismo Fosfocálcico (CeMFoC), Facultad de Medicina, Universidad Nacional de Rosario, 2000, Rosario, Argentina
| | - Ana María Cortizo
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - Antonio Desmond McCarthy
- Laboratorio de Investigaciones en Osteopatías y Metabolismo Mineral (LIOMM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina.
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The Bromodomain Inhibitor N-Methyl pyrrolidone Prevents Osteoporosis and BMP-Triggered Sclerostin Expression in Osteocytes. Int J Mol Sci 2018; 19:ijms19113332. [PMID: 30366476 PMCID: PMC6275050 DOI: 10.3390/ijms19113332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/09/2018] [Accepted: 10/23/2018] [Indexed: 12/13/2022] Open
Abstract
(1) Background: In an adult skeleton, bone is constantly renewed in a cycle of bone resorption, followed by bone formation. This coupling process, called bone remodeling, adjusts the quality and quantity of bone to the local needs. It is generally accepted that osteoporosis develops when bone resorption surpasses bone formation. Osteoclasts and osteoblasts, bone resorbing and bone forming cells respectively, are the major target in osteoporosis treatment. Inside bone and forming a complex network, the third and most abundant cells, the osteocytes, have long remained a mystery. Osteocytes are responsible for mechano-sensation and -transduction. Increased expression of the osteocyte-derived bone inhibitor sclerostin has been linked to estrogen deficiency-induced osteoporosis and is therefore a promising target for osteoporosis management. (2) Methods: Recently we showed in vitro and in vivo that NMP (N-Methyl-2-pyrrolidone) is a bioactive drug enhancing the BMP-2 (Bone Morphogenetic Protein 2) induced effect on bone formation while blocking bone resorption. Here we tested the effect of NMP on the expression of osteocyte-derived sclerostin. (3) Results: We found that NMP significantly decreased sclerostin mRNA and protein levels. In an animal model of osteoporosis, NMP prevented the estrogen deficiency-induced increased expression of sclerostin. (4) Conclusions: These results support the potential of NMP as a novel therapeutic compound for osteoporosis management, since it preserves bone by a direct interference with osteoblasts and osteoclasts and an indirect one via a decrease in sclerostin expression by osteocytes.
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Prabha RD, Nair BP, Ditzel N, Kjems J, Nair PD, Kassem M. Strontium functionalized scaffold for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:509-515. [PMID: 30423735 DOI: 10.1016/j.msec.2018.09.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/06/2017] [Accepted: 09/20/2018] [Indexed: 01/05/2023]
Abstract
Drug functionalized scaffolds are currently being employed to improve local delivery of osteoprotective drugs with the aim of reducing their loading dose as well as unwanted systemic complications. In this study we tested a poly-(ε) caprolactone (PCL)-laponite-strontium ranelate (SRA) composite scaffold (PLS3) for its abilities to support growth and osteogenic differentiation of human marrow derived stromal stem cells (hMSC). The in vitro experiments showed the PLS3 scaffold supported cell growth and osteogenic differentiation. The in vivo implantation of hMSC seeded PLS3 scaffold in immunocompromised mice revealed vascularized ectopic bone formation. PLS3 scaffolds can be useful in bone regenerative applications in the fields of orthopaedics and dentistry.
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Affiliation(s)
- Rahul D Prabha
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark; Department of Orthodontics and Dentofacial Orthopaedics, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India.
| | - Bindu P Nair
- Division of Tissue Engineering and Regeneration Technologies (DTERT), Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, India
| | - Nicholas Ditzel
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Jorgen Kjems
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus C 8000, Denmark
| | - Prabha D Nair
- Division of Tissue Engineering and Regeneration Technologies (DTERT), Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, India
| | - Moustapha Kassem
- Molecular Endocrinology Laboratory (KMEB), Department of Endocrinology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
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Geng T, Sun S, Yu H, Guo H, Zheng M, Zhang S, Chen X, Jin Q. Strontium ranelate inhibits wear particle-induced aseptic loosening in mice. ACTA ACUST UNITED AC 2018; 51:e7414. [PMID: 29995108 PMCID: PMC6050946 DOI: 10.1590/1414-431x20187414] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 05/17/2018] [Indexed: 11/21/2022]
Abstract
The imbalance between bone formation and osteolysis plays a key role in the pathogenesis of aseptic loosening. Strontium ranelate (SR) can promote bone formation and inhibit osteolysis. The aim of this study was to explore the role and mechanism of SR in aseptic loosening induced by wear particles. Twenty wild-type (WT) female C57BL/6j mice and 20 sclerostin-/- female C57BL/6j mice were used in this study. Mice were randomly divided into four groups: WT control group, WT SR group, knockout (KO) control group, and KO SR group. We found that SR enhanced the secretion of osteocalcin (0.72±0.007 in WT control group, 0.98±0.010 in WT SR group, P=0.000), Runx2 (0.34±0.005 in WT control group, 0.47±0.010 in WT SR group, P=0.000), β-catenin (1.04±0.05 in WT control group, 1.22±0.02 in WT SR group, P=0.000), and osteoprotegerin (OPG) (0.59±0.03 in WT control group, 0.90±0.02 in WT SR group, P=0.000). SR significantly decreased the level of receptor activator for nuclear factor-κB ligand (RANKL) (1.78±0.08 in WT control group, 1.37±0.06 in WT SR group, P=0.000) and improved the protein ratio of OPG/RANKL, but these effects were not observed in sclerostin-/- mice. Our findings demonstrated that SR enhanced bone formation and inhibited bone resorption in a wear particle-mediated osteolysis model in wild-type mice, and this effect relied mainly on the down-regulation of sclerostin levels to ameliorate the inhibition of the canonical Wnt pathway.
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Affiliation(s)
- Tianxiang Geng
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Haochen Yu
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Haohui Guo
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Mengxue Zheng
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Shuai Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Xi Chen
- Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Ningxia Medical University, Yinchuan, Ningxia, China
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Geng T, Chen X, Zheng M, Yu H, Zhang S, Sun S, Guo H, Jin Q. Effects of strontium ranelate on wear particle‑induced aseptic loosening in female ovariectomized mice. Mol Med Rep 2018; 18:1849-1857. [PMID: 29901109 DOI: 10.3892/mmr.2018.9133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 05/02/2018] [Indexed: 11/06/2022] Open
Abstract
Aseptic loosening and menopause‑induced osteoporosis are caused by an imbalance between bone formation and osteolysis. With an aging population, the probability of simultaneous occurrence of such conditions in an elderly individual is increasing. Strontium ranelate (SR) is an anti‑osteoporosis drug that promotes bone formation and inhibits osteolysis. The present study compared the effects of SR with those of the traditional anti‑osteoporosis drug alendronate (ALN) using an ovariectomized mouse model of osteolysis. The degree of firmness of the prosthesis and the surrounding tissue was examined, a micro‑CT scan of the prosthesis and the surrounding tissue was performed, and the levels of inflammatory and osteogenic and osteoclast factors were examined. It was observed that treatment with SR and ALN improved the bond between the prosthesis and the surrounding bone tissue by reducing the degree of osteolysis, thus improving the quality of bone around the prosthesis. SR increased the secretion of osteocalcin, runt‑related transcription factor 2 and osteoprotegerin (OPG). It additionally decreased the expression of the receptor activator of nuclear factor‑κB ligand (RANKL) and consequently increased the protein ratio OPG/RANKL, whereas ALN exhibited the opposite effect. Furthermore, SR and ALN suppressed tumor necrosis factor‑α and interleukin‑1β production, with SR exerting a more marked effect. The present results demonstrate that SR and ALN may stimulate bone formation and inhibit bone resorption in the ovariectomized mouse model of wear particle‑mediated osteolysis, with SR demonstrating better effects compared with ALN.
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Affiliation(s)
- Tianxiang Geng
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Xi Chen
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Mengxue Zheng
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Haochen Yu
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Shuai Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Haohui Guo
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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Saul D, Harlas B, Ahrabi A, Kosinsky RL, Hoffmann DB, Wassmann M, Wigger R, Böker KO, Sehmisch S, Komrakova M. Effect of Strontium Ranelate on the Muscle and Vertebrae of Ovariectomized Rats. Calcif Tissue Int 2018; 102:705-719. [PMID: 29242963 DOI: 10.1007/s00223-017-0374-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 12/06/2017] [Indexed: 12/18/2022]
Abstract
Osteoporosis is often accompanied by sarcopenia. The effect of strontium ranelate (SR) on muscle tissue has not been investigated sufficiently. In this study, the effect of different SR treatments on muscle was studied. Additionally, the lumbar vertebrae were analyzed. Three-month-old female rats were divided into five groups (n = 12): Group 1: untreated (NON-OVX); Group 2: ovariectomized and left untreated (OVX); Group 3: SR after OVX until the study ended (13 weeks, SR prophylaxis and therapy = pr+th); Group 4: OVX and SR for 8 weeks (SR prophylaxis = pr); Group 5: SR for 5 weeks from the 8 week after OVX (SR therapy = SR th). SR was applied in food (630 mg/kg body weight). The size of muscle fibers, capillary density, metabolic enzymes, and mRNA expression were assessed in soleus, gastrocnemius, and longissimus muscles. The vertebral bodies underwent micro-CT, biomechanical, and ashing analyses. In general, SR did not alter the muscle histological parameters. The changes in fiber size and capillary ratio were related to the body weight. Myostatin mRNA was decreased in Sr pr+th; protein expression was not changed. SR th led to increase in mRNA expression of vascular endothelial growth factor (Vegf-B). In lumbar spine, SR pr+th enhanced biomechanical properties, bone mineral density, trabecular area, density, and thickness and cortical density. The reduced calcium/phosphate ratio in the SR pr+th group indicates the replacement of calcium by strontium ions. SR has no adverse effects on muscle tissue and it shows a favorable time-dependent effect on vertebrae. A functional analysis of muscles could verify these findings.
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Affiliation(s)
- D Saul
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany
| | - B Harlas
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany
| | - A Ahrabi
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany
| | - R L Kosinsky
- Department of General, Visceral and Pediatric Surgery, University Medical Center Goettingen, 37075, Göettingen, Germany
| | - D B Hoffmann
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany
| | - M Wassmann
- Medical Institute of General Hygiene and Environmental Health, University of Goettingen, 37075, Göettingen, Germany
| | - R Wigger
- Department of Animal Science, University of Goettingen, 37075, Göettingen, Germany
| | - K O Böker
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany
| | - S Sehmisch
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany
| | - M Komrakova
- Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Goettingen, Robert-Koch Str. 40, 37075, Göettingen, Germany.
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Geng T, Sun S, Chen X, Wang B, Guo H, Zhang S, Jin Q. Strontium ranelate reduces the progression of titanium particle-induced osteolysis by increasing the ratio of osteoprotegerin to receptor activator of nuclear factor-κB ligand in vivo. Mol Med Rep 2017; 17:3829-3836. [PMID: 29257329 DOI: 10.3892/mmr.2017.8292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/02/2017] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effects of strontium ranelate (SR), an anti‑osteoporotic drug, on osteolysis in an experimental mouse model of aseptic loosening. A total of 45 female C57BL/6J mice each received implantation of one titanium alloy pin into the tibia, followed by intraarticular injection of titanium particles. One week following surgery, mice were randomly divided into three groups: Control group (no additional treatment), SR625 group (treated with SR at a dose of 625 mg/kg/day), and SR1800 group (treated with SR at a dose of 1,800 mg/kg/day). SR was administered via oral gavage once every day for 12 weeks. Micro‑computed tomography scanning and hematoxylin/eosin staining were used to assess osteolysis around the prosthesis. Immunohistochemistry and reverse transcription-quantitative polymerase chain reaction analysis were used to measure the expression of receptor activator of nuclear factor‑κB ligand (RANKL) and osteoprotegerin (OPG). Compared with the control, the SR625 and SR1800 groups exhibited a significantly increased pulling force of the titanium alloy pin. Bone volume and the bone surface/volume ratio in the periprosthetic tissue were significantly increased in the SR‑treated groups. Significant differences were observed between the SR1800 group and control group with respect to trabecular thickness and trabecular number. Mechanistically, SR downregulated the expression of RANKL and upregulated the expression of OPG in the periprosthetic tissue. In addition, SR was observed to inhibit wear particle‑associated osteolysis in a dose‑dependent manner. In conclusion, the present data illustrated that SR inhibited titanium particle‑induced osteolysis in vivo.
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Affiliation(s)
- Tianxiang Geng
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Xi Chen
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Bolun Wang
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Haohui Guo
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Shuai Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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Strontium and magnesium ions released from bioactive titanium metal promote early bone bonding in a rabbit implant model. Acta Biomater 2017; 63:383-392. [PMID: 28919512 DOI: 10.1016/j.actbio.2017.09.019] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 09/08/2017] [Accepted: 09/13/2017] [Indexed: 01/08/2023]
Abstract
We have previously developed the "alkali and heat treatment" method to confer bioactivity (bone-bonding ability) to titanium metal (Ti). As strontium (Sr) and magnesium (Mg) ions reportedly promote osteoblastic cell proliferation and differentiation and accelerate bone formation, we improved this method to induce the release of Sr (Sr-Ti) or Mg (Mg-Ti) ions from Ti in a previous study. Here, we evaluated the bioactivity of these novel surface treatments, Sr-Ti and Mg-Ti. In vitro evaluation of cell viability, expression of integrin β1, β catenin, and cyclin D1, osteogenic gene expression, alkaline phosphatase activity, and extracellular mineralization using MC3T3-E1 cells revealed that Sr-Ti and Mg-Ti enhanced proliferation and osteogenic differentiation. In rabbit in vivo studies, Sr-Ti and Mg-Ti also provided greater biomechanical strength and bone-implant contact than the positive control Ti (Ca-Ti), especially at the early stage (4-8weeks), and maintained these properties for a longer period (16-24weeks). Advantages of the improved method include process simplicity, applicability for any implant shape, and lack of adverse effects on implant composition and structure. Therefore, our treatment is promising for clinical applications to achieve early bone bonding. STATEMENT OF SIGNIFICANCE Implantation into osteoporotic bone constitutes a challenging problem because of early migration or loosening of the implant, which is primarily due to insufficient initial fixation in porotic bone. Therefore, it is desirable to provide implants with a capacity for early bone bonding. We have achieved conferring early bone bonding ability to titanium metal by releasing strontium ions or magnesium ions. Our treatment is promising for clinical applications to achieve early bone bonding of orthopedic or dental Ti-based implants.
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Budd E, Waddell S, de Andrés MC, Oreffo ROC. The Potential of microRNAs for Stem Cell-based Therapy for Degenerative Skeletal Diseases. ACTA ACUST UNITED AC 2017; 3:263-275. [PMID: 29214143 PMCID: PMC5700219 DOI: 10.1007/s40610-017-0076-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Purpose of Review Degenerative skeletal disorders including osteoarthritis (OA) and osteoporosis (OP) are the result of attenuation of tissue regeneration and lead to painful conditions with limited treatment options. Preventative measures to limit the onset of OA and OP remain a significant unmet clinical need. MicroRNAs (miRNAs) are known to be involved in the differentiation of stem cells, and in combination with stem cell therapy could induce skeletal regeneration and potentially prevent OA and OP onset. Recent Findings The combination of stem cells and miRNA has been successful at regenerating the bone and cartilage in vivo. MiRNAs, including miR-146b known to be involved in chondrogenic differentiation, could provide innovative targets for stem cell-based therapy, for the repair of articular cartilage defects forestalling the onset of OA or in the generation of a stem cell-based therapy for OP. Summary This review discusses the combination of skeletal stem cells (SSCs) and candidate miRNAs for application in a cell-based therapy approach for skeletal regenerative medicine.
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Affiliation(s)
- Emma Budd
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD UK
| | - Shona Waddell
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD UK
| | - María C de Andrés
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD UK
| | - Richard O C Oreffo
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD UK
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45
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Masalskas BF, Martins Júnior W, Leoni GB, Faloni APDS, Marcaccini AM, Silva Sousa YTC, Castro-Raucci LMSD. Local delivery of strontium ranelate promotes regeneration of critical size bone defects filled with collagen sponge. J Biomed Mater Res A 2017; 106:333-341. [PMID: 28913909 DOI: 10.1002/jbm.a.36237] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/31/2017] [Accepted: 09/12/2017] [Indexed: 01/12/2023]
Abstract
The effect of local delivery of strontium ranelate (SR) on bone regeneration of critical size bone defects filled with collagen sponge was evaluated. Bone defects of 5 mm diameter created in rat calvaria were filled with collagen sponge (C); collagen sponge with 5 mM Sr2+ SR (C5SR) or collagen sponge with 50 mM Sr2+ SR (C50SR). After 2, 4, and 6 weeks, bone volume (BV), bone surface (BS), trabecular thickness (Tb.Th), trabecular number (Tb.N), and trabecular separation (Tb.Sp) were evaluated by computed microtomography. At 6 weeks, histological analysis was performed. Intragroup comparisons were made by the Friedman test, while comparisons between groups were made by Kruskal-Wallis test (α = 5%). All groups showed increased BV, BS, Tb.Th, and Tb.N over time, but only C50SR promoted the reduction of Tb.Sp (p < 0.05). No significant differences between groups were detected at weeks 2 and 4. However, C50SR showed the highest values of BV, BS, and Tb.Th at 6 weeks (p < 0.05). Histological analysis revealed connective tissue in C and C5SR and immature bone tissue in C50SR. Local delivery of SR 50 mM Sr2+ associated with collagen sponge increased and accelerated bone regeneration in critical bone defects. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 333-341, 2018.
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Affiliation(s)
| | - Walter Martins Júnior
- School of Dentistry, University of Ribeirao Preto, Ribeirao Preto, Sao Paulo, Brazil
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46
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Robinson L, Aldridge V, Clark EM, Misra M, Micali N. Pharmacological treatment options for low Bone Mineral Density and secondary osteoporosis in Anorexia Nervosa: A systematic review of the literature. J Psychosom Res 2017; 98:87-97. [PMID: 28554377 PMCID: PMC7050204 DOI: 10.1016/j.jpsychores.2017.05.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Although there are several evidence-based treatments available to increase Bone Mineral Density (BMD) and reduce fracture risk in aging men and women, there are still uncertainties regarding which treatments are efficacious in reducing lifetime fracture risk in women with Anorexia Nervosa (AN). METHODS Medline, PsychInfo, Embase and the Cochrane Database were searched for English Language Studies. Inclusion criteria were studies of females of any age with AN who received pharmacological treatment with the primary aim to increase BMD or reduce fracture risk. Data were extracted from each study regarding pharmacological treatment and dosage used, BMD and bone formation marker outcomes; and participant characteristics including age, Body Mass Index (BMI), duration of AN, and duration of amenorrhea. RESULTS 675 studies were reviewed, of which 19 fit the inclusion criteria and were included in the final review, investigating a total of 1119 participants; 10 of the 19 included studies were double-blind RCTs. The remaining studies consisted of prospective observational studies, a retrospective cohort study, a case-control study and five non-randomised control trials. Bisphosphonates were effective in increasing BMD in adult women with AN, while estrogen administered transdermally resulted in significant increases in BMD in mature adolescents with AN. Administration of oral contraceptives (OC) did not significantly increase BMD in randomised or controlled trials, however, lifetime OC use was associated with higher spinal BMD. CONCLUSION Future research should clarify the safety of long-term bisphosphonate use in adult women with AN, and verify that transdermal estrogen replacement increases BMD in women with AN.
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Affiliation(s)
- Lauren Robinson
- Institute of Child Health, University College London, Gower Street, London WC1E 6BT, UK; Dept. of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA.
| | - Victoria Aldridge
- Institute of Child Health, University College London, Gower Street, London WC1E 6BT, UK
| | - Emma M Clark
- Musculoskeletal Research Unit, University of Bristol, Bristol, UK
| | - Madhusmita Misra
- Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Nadia Micali
- Institute of Child Health, University College London, Gower Street, London WC1E 6BT, UK,Dept. of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA
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47
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No YJ, Roohaniesfahani S, Lu Z, Shi J, Zreiqat H. Strontium-doped calcium silicate bioceramic with enhanced in vitro osteogenic properties. ACTA ACUST UNITED AC 2017; 12:035003. [PMID: 28348275 DOI: 10.1088/1748-605x/aa6987] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Gehlenite (GLN, Ca2SiAl2O7) is a bioceramic that has been recently shown to possess excellent mechanical strength and in vitro osteogenic properties for bone regeneration. Substitutional incorporation of strontium in place of calcium is an effective way to further enhance biological properties of calcium-based bioceramics and glasses. However, such strategy has the potential to affect other important physicochemical parameters such as strength and degradation due to differences in the ionic radius of strontium and calcium. This study is the first to investigate the effect of a range of concentrations of strontium substitution of calcium at 1, 2, 5, 10 mol% (S1-GLN, S2-GLN, S5-GLN and S10-GLN) on the physicochemical and biological properties of GLN. We showed that up to 2 mol% strontium ion substitution retains the monophasic GLN structure when sintered at 1450 °C, whereas higher concentrations resulted in presence of calcium silicate impurities. Increased strontium incorporation resulted in changes in grain morphology and reduced densification when the ceramics were sintered at 1450 °C. Porous GLN, S1-GLN and S2-GLN scaffolds (∼80% porosity) showed compressive strengths of 2.05 ± 0.46 MPa, 1.76 ± 0.79 MPa and 1.57 ± 0.52 MPa respectively. S1-GLN and S2-GLN immersed in simulated body fluid showed increased strontium ion release but reduced calcium and silicon ion release compared to GLN without affecting overall weight loss and pH over a 21 d period. The bioactivity of the S2-GLN ceramics was significantly improved as reflected in the significant upregulation of HOB proliferation and differentiation compared to GLN. Overall, these results suggest that increased incorporation of strontium presents a trade-off between bioactivity and mechanical strength for GLN bioceramics. This is an important consideration in the development of strontium-doped bioceramics.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, NSW, Australia
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48
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Pilmane M, Salma-Ancane K, Loca D, Locs J, Berzina-Cimdina L. Strontium and strontium ranelate: Historical review of some of their functions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:1222-1230. [PMID: 28575961 DOI: 10.1016/j.msec.2017.05.042] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 04/29/2017] [Accepted: 05/09/2017] [Indexed: 12/19/2022]
Abstract
The review covers historical and last decade's scientific literature on the biological and clinical role of strontium (Sr) and strontium ranelate (Sr RAN). It enrols the description of the main effects of Sr on supportive tissue, its proven and possible morphopathogenetical mechanisms and the interaction with the bone, and especially focuses on the Sr ability to inhibit osteoclasts and affect the programmed cell death. The main experimental and clinical experience regarding the Sr RAN influence in the treatment of osteoporosis and the search for correct doses is also highlighted. The review gives insight into the role of Sr/Sr RAN on stem cells, apoptosis, animal and clinical research.
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Affiliation(s)
- M Pilmane
- Institute of Anatomy and Anthropology, Riga Stradins University, 16 Dzirciema Str., Riga LV 1007, Latvia
| | - K Salma-Ancane
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia.
| | - D Loca
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
| | - J Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
| | - L Berzina-Cimdina
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 3 Pulka Str., Riga LV-1007, Latvia
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49
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Müller WE, Tolba E, Ackermann M, Neufurth M, Wang S, Feng Q, Schröder HC, Wang X. Fabrication of amorphous strontium polyphosphate microparticles that induce mineralization of bone cells in vitro and in vivo. Acta Biomater 2017; 50:89-101. [PMID: 28017868 DOI: 10.1016/j.actbio.2016.12.045] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 12/18/2016] [Accepted: 12/21/2016] [Indexed: 12/31/2022]
Abstract
Here we describe the fabrication process of amorphous strontium-polyphosphate microparticles ("Sr-a-polyP-MP"). The effects of these particles on growth and gene expression were investigated with SaOS-2 cells as well as with human mesenchymal stem cells (MSC) and compared with those particles prepared of amorphous calcium-polyphosphate ("Ca-a-polyP-MP") and of strontium salt. The results revealed a markedly higher stimulation of growth of MSC by "Sr-a-polyP-MP" compared to "Ca-a-polyP-MP" and a significant increase in mineralization of SaOS-2 cells, as well as an enhanced upregulation of the expression of the genes encoding for alkaline phosphatase and the bone morphogenetic protein 2 (BMP-2), likewise performed with SaOS-2 cells. On the other hand, "Sr-a-polyP-MP" only slightly changes the expression of the osteocyte-specific sclerostin, a negative regulator of the canonical Wnt signaling pathway and an inhibitor of bone cell differentiation as well as of mineralization in SaOS-2 cells. In contrast, "Ca-a-polyP-MP" strongly increased the steady-state expression of the SOST (sclerostin) gene. In animal studies poly(d,l-lactide-co-glycolide (PLGA) microspheres, containing polyP particles, were implanted into critical-size calvarial defects in rats. The results show that the amorphous Sr-polyP-containing microspheres caused an increased healing/mineralization of the bone defect even after short implantation periods of 8-12weeks, if compared to the β-tri-calcium phosphate control as well as to Ca-polyP. It is proposed that "Sr-a-polyP-MP" might elicit suitable properties to be applied as a regeneratively active implant material for bone repair. STATEMENT OF SIGNIFICANCE In this manuscript, we fabricated amorphous strontium-polyphosphate microparticles ("Sr-a-polyP-MP") and studied their effects on bone mineral formation in vitro as well as in vivo. In vitro, those particles substantially increased the expression of the genes encoding for alkaline phosphatase, the bone morphogenetic protein 2 and the mineralization. In vivo, the "Sr-a-polyP-MP" packed into PLGA microspheres and implanted into critical-size calvarial defects in rats resulted in a speeded up of the healing/mineralization of the bone defect. Those properties qualify Sr-a-polyP as a suitable biomaterial for bone regenerative implants.
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50
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Harvey NC, Biver E, Kaufman JM, Bauer J, Branco J, Brandi ML, Bruyère O, Coxam V, Cruz-Jentoft A, Czerwinski E, Dimai H, Fardellone P, Landi F, Reginster JY, Dawson-Hughes B, Kanis JA, Rizzoli R, Cooper C. The role of calcium supplementation in healthy musculoskeletal ageing : An expert consensus meeting of the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO) and the International Foundation for Osteoporosis (IOF). Osteoporos Int 2017; 28:447-462. [PMID: 27761590 PMCID: PMC5274536 DOI: 10.1007/s00198-016-3773-6] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/11/2016] [Indexed: 12/27/2022]
Abstract
The place of calcium supplementation, with or without concomitant vitamin D supplementation, has been much debated in terms of both efficacy and safety. There have been numerous trials and meta-analyses of supplementation for fracture reduction, and associations with risk of myocardial infarction have been suggested in recent years. In this report, the product of an expert consensus meeting of the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO) and the International Foundation for Osteoporosis (IOF), we review the evidence for the value of calcium supplementation, with or without vitamin D supplementation, for healthy musculoskeletal ageing. We conclude that (1) calcium and vitamin D supplementation leads to a modest reduction in fracture risk, although population-level intervention has not been shown to be an effective public health strategy; (2) supplementation with calcium alone for fracture reduction is not supported by the literature; (3) side effects of calcium supplementation include renal stones and gastrointestinal symptoms; (4) vitamin D supplementation, rather than calcium supplementation, may reduce falls risk; and (5) assertions of increased cardiovascular risk consequent to calcium supplementation are not convincingly supported by current evidence. In conclusion, we recommend, on the basis of the current evidence, that calcium supplementation, with concomitant vitamin D supplementation, is supported for patients at high risk of calcium and vitamin D insufficiency, and in those who are receiving treatment for osteoporosis.
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Affiliation(s)
- N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - E Biver
- Service of Bone Diseases, University Hospitals Geneva, Geneva, Switzerland
| | - J-M Kaufman
- Department of Internal Medicine, section Endocrinology, Ghent University, Ghent, Belgium
| | - J Bauer
- Department of Geriatric Medicine, Klinikum, Carl von Ossietzky University, Ammerländer Heerstrasse 114-118, 26129, Oldenburg, Germany
| | - J Branco
- CEDOC - NOVA Medical School, UNL and Rheumatology Department, CHLO/Hospital Egas Moniz, Lisbon, Portugal
| | - M L Brandi
- Head, Bone and Mineral Metabolic Unit, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - O Bruyère
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - V Coxam
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000, Clermont-Ferrand, France
- Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000, Clermont-Ferrand, France
| | - A Cruz-Jentoft
- Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria (Irycis), Madrid, Spain
| | - E Czerwinski
- Department of Bone and Joint Diseases, Faculty of Health Sciences, Krakow Medical Centre, Jagiellonian University, Krakow, Poland
| | - H Dimai
- Department of Internal Medicine, Division of Endocrinology and Diabetology, Medical University of Graz, Graz, Austria
| | - P Fardellone
- CHU Amiens, Université Picardie - Jules Verne, INSERM U 1088, Amiens, France
| | - F Landi
- Geriatric Department, Catholic University of Sacred Heart, Milan, Italy
| | - J-Y Reginster
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - B Dawson-Hughes
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Institute for Health and Ageing, Catholic University of Australia, Melbourne, Australia
| | - R Rizzoli
- Service of Bone Diseases, University Hospitals Geneva, Geneva, Switzerland
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.
- Oxford NIHR Musculoskeletal Biomedical Research Unit, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, The Botnar Research Centre, University of Oxford, Oxford, UK.
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