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Hedvičáková V, Žižková R, Buzgo M, Vištejnová L, Klein P, Hovořáková M, Bartoš M, Steklíková K, Luňáčková J, Šebová E, Paurová I, Rysová M, Filová E, Rampichová M. The Gradual Release of Alendronate for the Treatment of Critical Bone Defects in Osteoporotic and Control Rats. Int J Nanomedicine 2023; 18:541-560. [PMID: 36756052 PMCID: PMC9901358 DOI: 10.2147/ijn.s386784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/23/2022] [Indexed: 02/04/2023] Open
Abstract
Purpose Osteoporosis is a severe health problem with social and economic impacts on society. The standard treatment consists of the systemic administration of drugs such as bisphosphonates, with alendronate (ALN) being one of the most common. Nevertheless, complications of systemic administration occur with this drug. Therefore, it is necessary to develop new strategies, such as local administration. Methods In this study, emulsion/dispersion scaffolds based on W/O emulsion of PCL and PF68 with ALN, containing hydroxyapatite (HA) nanoparticles as the dispersion phase were prepared using electrospinning. Scaffolds with different release kinetics were tested in vitro on the co-cultures of osteoblasts and osteoclast-like cells, isolated from adult osteoporotic and control rats. Cell viability, proliferation, ALP, TRAP and CA II activity were examined. A scaffold with a gradual release of ALN was tested in vivo in the bone defects of osteoporotic and control rats. Results The release kinetics were dependent on the scaffold composition and the used system of the poloxamers. The ALN was released from the scaffolds for more than 22 days. The behavior of cells cultured in vitro on scaffolds with different release kinetics was comparable. The difference was evident between cell co-cultures isolated from osteoporotic and control animals. The PCL/HA scaffold show slow degradation in vivo and residual scaffold limited new bone formation inside the defects. Nevertheless, the released ALN supported bone formation in the areas surrounding the residual scaffold. Interestingly, a positive effect of systemic administration of ALN was not proved. Conclusion The prepared scaffolds enabled tunable control release of ALN. The effect of ALN was proved in vitro and in in vivo study supported peri-implant bone formation.
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Affiliation(s)
- Věra Hedvičáková
- Department of Tissue Engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic
| | - Radmila Žižková
- Department of Tissue Engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic,Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec, Liberec, Czech Republic
| | - Matěj Buzgo
- Department of Tissue Engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic,BIOFABICS Lda, Porto, Portugal
| | - Lucie Vištejnová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Pavel Klein
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic,Department of Pathological Physiology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Maria Hovořáková
- Institute of Histology and Embryology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martin Bartoš
- Institute of Dental Medicine, First Faculty of Medicine and General University Hospital, Prague, Czech Republic,Institute of Anatomy, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Klára Steklíková
- Institute of Histology and Embryology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jitka Luňáčková
- Institute of Dental Medicine, First Faculty of Medicine and General University Hospital, Prague, Czech Republic
| | - Eva Šebová
- Department of Tissue Engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic
| | - Iveta Paurová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Miroslava Rysová
- Department of Applied Biology, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic
| | - Eva Filová
- Department of Tissue Engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic
| | - Michala Rampichová
- Department of Tissue Engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic,Correspondence: Michala Rampichová, Department of Tissue engineering, Institute of Experimental Medicine, the Czech Academy of Sciences, Videnska 1083, Prague, 14220, Czech Republic, Tel +420 241 062 692, Email
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Hadjiargyrou M. Effects of bisphosphonates on appendicular fracture repair in rodents. Bone 2022; 164:116542. [PMID: 36041726 DOI: 10.1016/j.bone.2022.116542] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/24/2022] [Accepted: 08/24/2022] [Indexed: 11/09/2022]
Abstract
The balance between osteoclastic bone resorption and osteoblastic bone formation is ultimately responsible for maintaining a structural and functional skeleton. Despite their strength, bones do break and the main cause of fractures are trauma and decreased bone mineral density as a result of aging and/or pathology that weakens the bone's microarchitecture and subsequently, its material properties. Osteoporosis is a disease marked by increased osteoclast activity and decreased osteoblastic activity tipping the remodeling balance in favor of bone resorption and can be caused by aging, glucocorticoids, disuse and estrogen-deficiency. Ultimately, this leads to brittle and weaker bones which become more prone to trauma or stress-induced fractures. The current treatment for preventing and treating osteoporotic fractures is the use of antiresorptive drugs such as bisphosphonates (BPs) and denosumab, but unfortunately, their long-term use, especially with alendronate and ibandronate, has been associated with increased risk of atypical femoral fractures (AFFs); femoral diaphyseal fractures distal to the lesser trochanter but proximal to the supracondylar flare. The purpose of this review is to examine the information that exists in the literature examining the effects of BPs on fracture repair of long bones in rodent (rat and mouse) models. The focus on rodents stems from the scientific community's unresolved need to develop small animal models to examine the molecular, cellular, tissue and biomechanical mechanisms responsible for the development of AFFs and how best they can be treated.
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Affiliation(s)
- Michael Hadjiargyrou
- Department of Biological & Chemical Sciences, New York Institute of Technology, Old Westbury, NY 11568, United States of America.
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de Lima do Nascimento TC, Gerber JT, Verbicaro T, Arce RM, Elsalanty ME, Fontana JD, Muller Storrer CL, Scariot R. Biochemical and X-ray micro-computed tomographic analyses of critical size bone defects grafted with autogenous bone and mercerized bacterial cellulose membranes salified with alendronate. J Oral Biosci 2021; 63:408-415. [PMID: 34425239 DOI: 10.1016/j.job.2021.08.002] [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: 07/27/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVES This study aimed to evaluate the repair of critical-sized bone defects grafted with autogenous bone and mercerized bacterial cellulose membranes (BCm) salified with alendronate (ALN). METHODS Forty-eight male Wistar rats underwent surgery to create a 5 mm-diameter bone defect in the calvarium. The removed bone was particularized, regrafted into the defect, and covered by a BCm according to the group: control group (CG), simply mercerized BCm; group 1 (G1), negatively charged BCm (BCm-CM-) salified with ALN; and group 2 (G2), positively charged BCm (BCm-DEAE+) salified with ALN. Serum samples were collected preoperatively and before euthanasia to analyze osteoprotegerin (OPG), parathyroid hormone (PTH), sclerostin (SOST), and fibroblast growth factor 23 (FGF23) levels. The animals were euthanized after 15 or 60 d. Calvaria were analyzed using quantitative microtomography (μCT). RESULTS There was an increased level of PTH in the CG compared to the G2 group, at day 60 (p = 0.019). When analyzing the same group over time, G1 presented an increased FGF23 level on days 15 and 60 (p < 0.05). CG presented an increase in PTH (p = 0.037) at day 60. The μCT analysis detected increased trabecular separation on day 15 in G2 compared to G1 (p = 0.040). CONCLUSIONS Salification of ionized BCm with ALN had no direct effect on bone repair; however, BCm-CM- increased the levels of FGF23 over time. BCm-DEAE+ decreased PTH levels compared to mercerized BCm. BCm-CM-salified with ALN-induced superior bone quality, with respect to trabecular separation, compared to BCm-DEAE+.
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Affiliation(s)
- Tuanny C de Lima do Nascimento
- School of Health Sciences, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Curitiba, PR, Brazil, Zip code: 81280-330
| | - Jennifer Tsi Gerber
- School of Health Sciences, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Curitiba, PR, Brazil, Zip code: 81280-330
| | - Thalyta Verbicaro
- School of Health Sciences, Positivo University, 5300 Professor Pedro Viriato Parigot de Souza Street, Curitiba, PR, Brazil, Zip code: 81280-330
| | - Roger M Arce
- Department of Periodontics and Oral Hygiene, School of Dentistry, The University of Texas Health Science Center at Houston, 7500 Cambridge St, Houston, TX, USA, Zip code: 77054
| | - Mohammed E Elsalanty
- Department of Medical Anatomical Sciences, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 615 E 3rd St Pomona, CA, USA, Zip code: 91766
| | - José Domingos Fontana
- Master Graduation on Urban and Industrial Environments, Polytechnic Center, Federal University of Paraná, 100 Cel. Francisco H. Dos Santos Avenue, Curitiba, PR, Brazil, Zip code: 81530-000
| | - Carmen Lucia Muller Storrer
- Department of Periodontics, IOA Boutique Curitiba, 6823 Sete de Setembro Avenue, Seminario, Curitiba, PR, Brazil, Zip code: 80240-001
| | - Rafaela Scariot
- Department of Stomatology, School of Dentistry, Federal University of Parana, 632 Prefeito Lothario Meissner Avenue, Curitiba, PR, Brazil, Zip code: 80210-170.
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Bonetto LM, Corso PFCDL, Kuchar GG, Gerber JT, Cunha LF, Elsalanty M, Zielak JC, Gonzaga CC, Scariot R. Effect of Age and Sodium Alendronate on Femoral Fracture Repair: Biochemical and Biomechanical Study in Rats. Front Cell Dev Biol 2021; 9:558285. [PMID: 34026748 PMCID: PMC8131822 DOI: 10.3389/fcell.2021.558285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 04/12/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bisphosphonates are drugs widely used to reduce bone resorption, increase bone mineral density and control age-related bone loss. Although there are studies reporting differences in bone structure between young and old adults, it is still difficult to predict changes related to bone aging. The aim of this study was to evaluate the effect of age and sodium alendronate on bone repair of femoral fractures in rats. METHODS Wistar rats (n = 40) were allocated into groups: O (control old-rats), Y (control young-rats), OA (alendronate old-rats) and YA (alendronate young-rats). All animals underwent linear fracture surgery followed by fixation. Groups OA and YA received 1 mg/kg alendronate three times a week until euthanasia. Biochemical analysis of calcium and alkaline phosphatase was done. After euthanasia, femurs were evaluated in relation to cross-section and flexural strength, with three-point bending test. Data were submitted to statistical analysis with significance level of 0.05. RESULTS There was no difference in calcium and alkaline phosphatase levels (p > 0.05). Young animals presented lower cross-section than older animals (p < 0.05). Only fractured side, young animals presented major flexural strength than older animals (p < 0.05). There was no difference between the animals that used or not alendronate in relation to cross-section and flexural strength (p > 0.05). When compared fractured and non-fractured femurs, major cross-section on fractured side was observed (p < 0.05). Flexural strength presented higher values in femurs on non-fractured side (p < 0.05). There was correlation of weight and cross-section (R = +0.91) and weight with flexural strength of fractured and non-fractured side, respectively (R = -0.97 and -0.71). CONCLUSION In short, there was no difference of calcium and alkaline phosphatase during the bone repair process. Age has influence in cross-section and flexural strength. Alendronate showed no association with these factors.
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Affiliation(s)
| | | | | | | | | | - Mohammed Elsalanty
- Department of Medical Anatomical Science, Western University of Health Sciences, Pomona, CA, Unioted States
| | | | | | - Rafaela Scariot
- Department of Dentistry, Federal University of Parana, Curitiba, Brazil
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Lopes LLDA, de Barros Silva PG, Damasceno JX, Martins JODL, da Silva KR, de Sousa FB, Dantas HV, Ribeiro TR, Alencar PNB. Microtomographic analysis of the effect of sodium alendronate on orthodontic movement in rats. Orthod Craniofac Res 2020; 24:96-101. [PMID: 32639673 DOI: 10.1111/ocr.12410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/22/2020] [Accepted: 06/30/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To evaluate the effect of sodium alendronate on orthodontic tooth movement in rats using microtomographic analysis. SETTINGS AND SAMPLE POPULATION Thirty male Wistar rats (Rattus norvegicus) were divided into three groups of 10 rats and administered saline (control), 1 mg/kg sodium alendronate or 6 mg/kg sodium alendronate, respectively. MATERIALS AND METHODS The drug was administered once per week for 5 weeks by gavage. Orthodontic movement was induced during the last 2 weeks of medication administration by inserting a closed nickel-titanium spring between the left upper first molar and central incisors. The opposite side served as the control. Tooth movement and bone trabeculation in the furcation region were evaluated by microtomographic analysis in the first (moved) and third (static) molars. The data were subjected to one-way or two-way ANOVA and Bonferroni test (P < .05). RESULTS The microtomographic images of the group that received 6 mg/kg sodium alendronate demonstrated significantly less tooth movement (P = .048), less space between the trabeculae (P = .031) and greater number of bone trabeculae (P = .033) compared to the other groups. There were no statistically significant differences in bone volume and mean trabecular thickness between the three groups. The static teeth did not show the same alterations (P > .05). CONCLUSION Sodium alendronate treatment reduced tooth movement in rats.
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Affiliation(s)
| | | | | | | | - Karla Rovaris da Silva
- Postgraduate Program in Dentistry, Health Sciences Center, Federal University of Paraíba, João Pessoa, Brazil
| | - Frederico Barbosa de Sousa
- Postgraduate Program in Dentistry, Health Sciences Center, Federal University of Paraíba, João Pessoa, Brazil
| | - Hugo Victor Dantas
- Postgraduate Program in Dentistry, Health Sciences Center, Federal University of Paraíba, João Pessoa, Brazil
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