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Jiao M, Shi X, Han Y, Xu R, Zhao S, Jia P, Zheng X, Li X, Xiao C. The screened compounds from Ligustri Lucidi Fructus using the immobilized calcium sensing receptor column exhibit osteogenic activity in vitro. J Pharm Biomed Anal 2024; 245:116192. [PMID: 38703747 DOI: 10.1016/j.jpba.2024.116192] [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: 02/07/2024] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/06/2024]
Abstract
Calcium sensing receptor (CaSR) has become the novel target of treating osteoporosis with herbal medicine Ligustri Lucidi Fructus (LLF), however, the bioactive compounds responsible for anti-osteoporosis are hard to clarify due to the complexity and diversity of chemical constituents in it. Herein, the immobilized CaSR column was packed with stationary phase materials, which were derived from integrating CLIP-tagged CaSR directly out of crude cell lysates onto the surface of silica gels (5.83 mg/g) in a site-specific covalent manner. The column had a great specificity of recognizing agonists and kept a good stability for at least 3 weeks. The two compounds from LLF extract were screened and identified as olenuezhenoside and ligustroflavone using the immobilized CaSR column in conjunction with mass spectrometry. Molecular docking predicted that both compounds were bound in venus flytrap (VFT) domain of CaSR by the formation of hydrogen bonds. Cellular results showed that both compounds exhibited the distinct osteogenic activity by enhancing the proliferation, differentiation and mineralization of osteoblastic cells. Our study demonstrated that, the immobilized protein column enables to screen the bioactive compounds rapidly from herbal extract, and the newly discovered natural product ligands towards CaSR, including olenuezhenoside and ligustroflavone, will be the candidates for the treatment of osteoporosis.
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Affiliation(s)
- Meizhi Jiao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Xiangang Shi
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Yaokun Han
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Ru Xu
- Xi'an International University, Xi'an 710077, PR China
| | - Shoucheng Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Pu Jia
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Xiaohui Zheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Xia Li
- Shaanxi Institute for Food and Drug Control, Xi'an 710065, PR China
| | - Chaoni Xiao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, PR China.
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Inoue BKN, Paludetto LV, Monteiro NG, Batista FRDS, Kitagawa IL, da Silva RS, Antoniali C, Lisboa Filho PN, Okamoto R. Synergic Action of Systemic Risedronate and Local Rutherpy in Peri-implantar Repair of Ovariectomized Rats: Biomechanical and Molecular Analysis. Int J Mol Sci 2023; 24:16153. [PMID: 38003342 PMCID: PMC10671386 DOI: 10.3390/ijms242216153] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Postmenopausal osteoporosis and poor dietary habits can lead to overweightness and obesity. Bisphosphonates are the first-line treatment for osteoporosis. However, some studies show that they may increase the risk of osteonecrosis of the jaw. Considering the antimicrobial, angiogenic and vasodilatory potential of nitric oxide, this study aims to evaluate the local activity of this substance during the placement of surface-treated implants. Seventy-two Wistar rats were divided into three groups: SHAM (SHAM surgery), OVX + HD (ovariectomy + cafeteria diet), and OVX + HD + RIS (ovariectomy + cafeteria diet + sodium risedronate treatment), which were further subdivided according to the surface treatment of the future implant: CONV (conventional), TE10, or TE100 (TERPY at 10 or 100 μM concentration); n = 8 per subgroup. The animals underwent surgery for implant installation in the proximal tibia metaphysis and were euthanized after 28 days. Data obtained from removal torque and RT-PCR (OPG, RANKL, ALP, IBSP and VEGF expression) were subjected to statistical analysis at 5% significance level. For biomechanical analysis, TE10 produced better results in the OVX + HD group (7.4 N/cm, SD = 0.6819). Molecular analysis showed: (1) significant increase in OPG gene expression in OVX groups with TE10; (2) decreased RANKL expression in OVX + HD + RIS compared to OVX + HD; (3) significantly increased expressions of IBSP and VEGF for OVX + HD + RIS TE10. At its lowest concentration, TERPY has the potential to improve peri-implant conditions.
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Affiliation(s)
- Bruna Kaori Namba Inoue
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Laura Vidoto Paludetto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Naara Gabriela Monteiro
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Fábio Roberto de Souza Batista
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Igor Lebedenco Kitagawa
- Federal Institute of Education, Science and Technology of São Paulo (IFSP), Birigui 16201-407, SP, Brazil;
| | - Roberto Santana da Silva
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo—USP, Ribeirão Preto 14040-403, SP, Brazil;
| | - Cristina Antoniali
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Paulo Noronha Lisboa Filho
- Department of Physics and Meteorology, Bauru Sciences School, São Paulo State University Júlio de Mesquita Filho—UNESP, Bauru 17033-360, SP, Brazil;
| | - Roberta Okamoto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
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DA Silva WPP, Delanora LA, Rios BR, Barbosa S, Simon MEDS, Sukotjo C, Faverani LP. Feasible low bone density condition for assessing bioactivity in ex-in vivo and in vivo studies. J Appl Oral Sci 2023; 31:e20220411. [PMID: 37436279 DOI: 10.1590/1678-7757-2022-0411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/29/2023] [Indexed: 07/13/2023] Open
Abstract
OBJECTIVE To choose a critical animal model for assessments of bone repair with implant installation by comparing senile rats (SENIL) to young ovariectomized rats (OXV). METHODOLOGY For the ex-in vivo study, the femurs were precursors for bone marrow mesenchymal stem cells. Cellular responses were performed, including cell viability, gene expression of osteoblastic markers, bone sialoprotein immunolocalization, alkaline phosphatase activity, and mineralized matrix formation. For the in vivo study, the animals received implants in the region of the bilateral tibial metaphysis for histometric, microtomography, reverse torque, and confocal microscopy. RESULTS Cell viability showed that the SENIL group had lower growth than OVX. Gene expression showed more critical responses for the SENIL group (p<0.05). The alkaline phosphatase activity obtained a lower expression in the SENIL group, as for the mineralization nodules (p<0.05). The in vivo histological parameters and biomechanical analysis showed lower data for the SENIL group. The confocal microscopy indicated the presence of a fragile bone in the SENIL group. The microtomography was similar between the groups. The histometry of the SENIL group showed the lowest values (p<0.05). CONCLUSION In experimental studies with assessments of bone repair using implant installation, the senile model promotes the most critical bone condition, allowing a better investigation of the properties of biomaterials and topographic changes.
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Affiliation(s)
- William Phillip Pereira DA Silva
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Leonardo Alan Delanora
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Barbara Ribeiro Rios
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Stéfany Barbosa
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Maria Eloise de Sá Simon
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Cortino Sukotjo
- University of Illinois at Chicago, College of Dentistry, Department of Restorative Dentistry, Chicago, Illinois, United States
| | - Leonardo P Faverani
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
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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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5
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Reis CHB, Buchaim RL, Pomini KT, Hamzé AL, Zattiti IV, Duarte MAH, Alcalde MP, Barraviera B, Ferreira Júnior RS, Pontes FML, Grandini CR, Ortiz ADC, Fideles SOM, Eugênio RMDC, Rosa Junior GM, Teixeira DDB, Pereira EDSBM, Pilon JPG, Miglino MA, Buchaim DV. Effects of a Biocomplex Formed by Two Scaffold Biomaterials, Hydroxyapatite/Tricalcium Phosphate Ceramic and Fibrin Biopolymer, with Photobiomodulation, on Bone Repair. Polymers (Basel) 2022; 14:polym14102075. [PMID: 35631957 PMCID: PMC9146558 DOI: 10.3390/polym14102075] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/09/2022] [Accepted: 05/16/2022] [Indexed: 12/19/2022] Open
Abstract
There are several treatment methods available for bone repair, although the effectiveness becomes limited in cases of large defects. The objective of this pre-clinical protocol was to evaluate the grafting of hydroxyapatite/tricalcium phosphate (BCP) ceramic biomaterial (B; QualyBone BCP®, QualyLive, Amadora, Portugal) together with the heterologous fibrin biopolymer (FB; CEVAP/UNESP Botucatu, Brazil) and with photobiomodulation (PBM; Laserpulse®, Ibramed, Amparo, Brazil) in the repair process of bone defects. Fifty-six rats were randomly divided into four groups of seven animals each: the biomaterial group (G1/B), the biomaterial plus FB group (G2/BFB); the biomaterial plus PBM group (G3/B + PBM), and the biomaterial plus FB plus PBM group (G4/BFB + PBM). After anesthesia, a critical defect was performed in the center of the rats’ parietal bones, then filled and treated according to their respective groups. The rats were euthanized at 14 and 42 postoperative days. Histomorphologically, at 42 days, the G4/BFB + PBM group showed a more advanced maturation transition, with more organized and mature bone areas forming concentric lamellae. A birefringence analysis of collagen fibers also showed a more advanced degree of maturation for the G4/BFB + PBM group. In the comparison between the groups, in the two experimental periods (14 and 42 days), in relation to the percentage of formation of new bone tissue, a significant difference was found between all groups (G1/B (5.42 ± 1.12; 21.49 ± 4.74), G2/BFB (5.00 ± 0.94; 21.77 ± 2.83), G3/B + PBM (12.65 ± 1.78; 29.29 ± 2.93), and G4/BFB + PBM (12.65 ± 2.32; 31.38 ± 2.89)). It was concluded that the use of PBM with low-level laser therapy (LLLT) positively interfered in the repair process of bone defects previously filled with the biocomplex formed by the heterologous fibrin biopolymer associated with the synthetic ceramic of hydroxyapatite and tricalcium phosphate.
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Affiliation(s)
- Carlos Henrique Bertoni Reis
- UNIMAR Beneficent Hospital (HBU), University of Marilia (UNIMAR), Marilia 17525-160, Brazil; (C.H.B.R.); (J.P.G.P.)
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil; (K.T.P.); (A.d.C.O.); (S.O.M.F.)
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil; (K.T.P.); (A.d.C.O.); (S.O.M.F.)
- Graduate Program in Anatomy of Domestic and Wild Animals, Faculty of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ/USP), São Paulo 05508-270, Brazil;
- Correspondence: ; Tel.: +55-14-3235-8220
| | - Karina Torres Pomini
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil; (K.T.P.); (A.d.C.O.); (S.O.M.F.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil; (D.d.B.T.); (E.d.S.B.M.P.); (D.V.B.)
| | - Abdul Latif Hamzé
- Medical School, University of Marilia (UNIMAR), Marilia 17525-160, Brazil; (A.L.H.); (I.V.Z.); (R.M.d.C.E.)
| | | | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, Brazil;
| | - Murilo Priori Alcalde
- Department of Health Science, Unisagrado University Center, Bauru 17011-160, Brazil; (M.P.A.); (G.M.R.J.)
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ Estadual Paulista, UNESP), Botucatu 18610-307, Brazil; (B.B.); (R.S.F.J.)
- Graduate Program in Tropical Diseases, Botucatu Medical School (FMB), São Paulo State University (UNESP–Univ Estadual Paulista), Botucatu 18618-687, Brazil
| | - Rui Seabra Ferreira Júnior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ Estadual Paulista, UNESP), Botucatu 18610-307, Brazil; (B.B.); (R.S.F.J.)
- Graduate Program in Tropical Diseases, Botucatu Medical School (FMB), São Paulo State University (UNESP–Univ Estadual Paulista), Botucatu 18618-687, Brazil
| | - Fenelon Martinho Lima Pontes
- Chemistry Department, Faculty of Science, São Paulo State University (UNESP–Univ Estadual Paulista), Bauru 17033-360, Brazil;
| | - Carlos Roberto Grandini
- Laboratório de Anelasticidade e Biomateriais, Physics Department, Faculty of Science, São Paulo State University (UNESP–Univ Estadual Paulista), Bauru 17033-360, Brazil;
| | - Adriana de Cássia Ortiz
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil; (K.T.P.); (A.d.C.O.); (S.O.M.F.)
| | - Simone Ortiz Moura Fideles
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil; (K.T.P.); (A.d.C.O.); (S.O.M.F.)
| | | | - Geraldo Marco Rosa Junior
- Department of Health Science, Unisagrado University Center, Bauru 17011-160, Brazil; (M.P.A.); (G.M.R.J.)
- Faculdade Ibero Americana de São Paulo, FIASP, Piraju 18810-818, Brazil
| | - Daniel de Bortoli Teixeira
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil; (D.d.B.T.); (E.d.S.B.M.P.); (D.V.B.)
- Postgraduate Program in Animal Health, Production and Environment, University of Marilia (UNIMAR), Marília 17525-902, Brazil
| | - Eliana de Souza Bastos Mazuqueli Pereira
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil; (D.d.B.T.); (E.d.S.B.M.P.); (D.V.B.)
| | - João Paulo Galletti Pilon
- UNIMAR Beneficent Hospital (HBU), University of Marilia (UNIMAR), Marilia 17525-160, Brazil; (C.H.B.R.); (J.P.G.P.)
- Postgraduate Program in Speech Therapy, Sao Paulo State University (UNESP—Univ Estadual Paulista), Marília 17525-900, Brazil
| | - Maria Angelica Miglino
- Graduate Program in Anatomy of Domestic and Wild Animals, Faculty of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ/USP), São Paulo 05508-270, Brazil;
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil; (D.d.B.T.); (E.d.S.B.M.P.); (D.V.B.)
- Teaching and Research Coordination of the Medical School, University Center of Adamantina (UniFAI), Adamantina 17800-000, Brazil
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Irie MS, Spin-Neto R, Borges JS, Wenzel A, Soares PBF. Effect of data binning and frame averaging for micro-CT image acquisition on the morphometric outcome of bone repair assessment. Sci Rep 2022; 12:1424. [PMID: 35082347 PMCID: PMC8791988 DOI: 10.1038/s41598-022-05459-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/05/2022] [Indexed: 11/09/2022] Open
Abstract
Despite the current advances in micro-CT analysis, the influence of some image acquisition parameters on the morphometric assessment outcome have not been fully elucidated. The aim of this study was to determine whether data binning and frame averaging affect the morphometric outcome of bone repair assessment using micro-CT. Four Wistar rats' tibiae with a surgically created bone defect were imaged with micro-CT six times each, frame averaging set to 1 and 2, and data binning set to 1, 2 and 4, for each of the averaging values. Two-way ANOVA followed by Bonferroni tests assessed the significance of frame averaging and data binning on a set of morphometric parameters assessed in the image volumes (p < 0.01). The effect of frame averaging was not significant for any of the assessed parameters. Increased data binning led to larger trabecular thickness. In contrast, smaller bone volume fraction and bone volume were found as data binning increased. Trabeculae number and trabecular separation were not influenced by any of the parameters. In conclusion, the morphometric outcome of bone repair assessment in micro-CT demonstrated dependency upon data binning, but not frame averaging. Therefore, image acquisition of small anatomical structures (e.g., rat trabeculae) should be performed without data binning.
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Affiliation(s)
- Milena Suemi Irie
- Department of Periodontology and Implantology, School of Dentistry, Federal University of Uberlândia, Avenida Pará s/no, Campus Umuarama, Bloco 4L, Bairro Umuarama, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Rubens Spin-Neto
- Department of Dentistry and Oral Health, Section for Oral Radiology, Aarhus University, Aarhus C, Denmark
| | - Juliana Simeão Borges
- Department of Periodontology and Implantology, School of Dentistry, Federal University of Uberlândia, Avenida Pará s/no, Campus Umuarama, Bloco 4L, Bairro Umuarama, Uberlândia, Minas Gerais, 38400-902, Brazil
| | - Ann Wenzel
- Department of Dentistry and Oral Health, Section for Oral Radiology, Aarhus University, Aarhus C, Denmark
| | - Priscilla Barbosa Ferreira Soares
- Department of Periodontology and Implantology, School of Dentistry, Federal University of Uberlândia, Avenida Pará s/no, Campus Umuarama, Bloco 4L, Bairro Umuarama, Uberlândia, Minas Gerais, 38400-902, Brazil.
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7
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Frigério PB, Gomes-Ferreira PHS, de Souza Batista FR, Moura J, Rangel Garcia Júnior I, Botticelli D, Lisboa-Filho PN, Okamoto R. Effect of Topical PTH 1-34 Functionalized to Biogran ® in the Process of Alveolar Repair in Rats Submitted to Orchiectomy. MATERIALS (BASEL, SWITZERLAND) 2021; 15:207. [PMID: 35009347 PMCID: PMC8746260 DOI: 10.3390/ma15010207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
(1) Background: There are many therapies for osteoporosis control and bone maintenance; anabolic drugs such as teriparatide and bone grafts help in the repair process and stimulate bone formation. Thus, the aim of the present study was to evaluate the behavior of repaired bone in the presence of PTH (teriparatide) associated with Biogran® (biomaterial) through a sonochemical procedure after extraction in rats. (2) Methods: The insertion of Biogran® with PTH in the alveolus was performed 30 days after incisor extraction. Euthanasia occurred after 60 days. (3) Results: The use of local treatment of PTH loaded with Biogran® in healthy rats promoted good results for micro-CT, with an increase in percentage and bone volume, number and trabecular separation and less total porosity. Greater immunostaining for Wnt, β-Catenin and osteocalcin proteins and lower expression for Thrombospondin-Related Adhesive Protein (TRAP), which shows an increase in the number of osteoblasts and inhibition of osteoclast action. However, the treated orchiectomized groups did not obtain such expressive results. (4) Conclusion: The use of Biogran® with PTH improved alveolar repair in rats. However, new researches with more efficient doses must be studied to collaborate effectively with the formation of a quality bone after the orchiectomy.
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Affiliation(s)
- Paula Buzo Frigério
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015050, SP, Brazil; (P.H.S.G.-F.); (F.R.d.S.B.); (J.M.); (I.R.G.J.)
| | - Pedro Henrique Silva Gomes-Ferreira
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015050, SP, Brazil; (P.H.S.G.-F.); (F.R.d.S.B.); (J.M.); (I.R.G.J.)
| | - Fábio Roberto de Souza Batista
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015050, SP, Brazil; (P.H.S.G.-F.); (F.R.d.S.B.); (J.M.); (I.R.G.J.)
| | - Juliana Moura
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015050, SP, Brazil; (P.H.S.G.-F.); (F.R.d.S.B.); (J.M.); (I.R.G.J.)
| | - Idelmo Rangel Garcia Júnior
- Department of Diagnosis and Surgery, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015050, SP, Brazil; (P.H.S.G.-F.); (F.R.d.S.B.); (J.M.); (I.R.G.J.)
| | | | - Paulo Noronha Lisboa-Filho
- Department of Physics, School of Sciences, São Paulo State University Júlio de Mesquita Filho—UNESP, Bauru 17033360, SP, Brazil;
| | - Roberta Okamoto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015050, SP, Brazil;
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8
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Bassi APF, Bizelli VF, Francatti TM, Rezende de Moares Ferreira AC, Carvalho Pereira J, Al-Sharani HM, de Almeida Lucas F, Faverani LP. Bone Regeneration Assessment of Polycaprolactone Membrane on Critical-Size Defects in Rat Calvaria. MEMBRANES 2021; 11:membranes11020124. [PMID: 33572318 PMCID: PMC7916152 DOI: 10.3390/membranes11020124] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Biomaterials for use in guided bone regeneration (GBR) are constantly being investigated and developed to improve clinical outcomes. The present study aimed to comparatively evaluate the biological performance of different membranes during the bone healing process of 8 mm critical defects in rat calvaria in order to assess their influence on the quality of the newly formed bone. Seventy-two adult male rats were divided into three experimental groups (n = 24) based on the membranes used: the CG—membrane-free control group (only blood clot, negative control), BG—porcine collagen membrane group (Bio-Guide®, positive control), and the PCL—polycaprolactone (enriched with 5% hydroxyapatite) membrane group (experimental group). Histological and histometric analyses were performed at 7, 15, 30, and 60 days postoperatively. The quantitative data were analyzed by two-way ANOVA and Tukey’s test (p < 0.05). At 7 and 15 days, the inflammatory responses in the BG and PCL groups were significantly different (p < 0.05). The PCL group, at 15 days, showed a large area of newly formed bone. At 30 and 60 days postoperatively, the PCL and BG groups exhibited similar bone healing, including some specimens showing complete closure of the critical defect (p = 0.799). Thus, the PCL membrane was biocompatible, and has the potential to help with GBR procedures.
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Affiliation(s)
- Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
- Correspondence: ; Tel.: +55-18-36363242
| | - Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Tamires Mello Francatti
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Ana Carulina Rezende de Moares Ferreira
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Járede Carvalho Pereira
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Hesham Mohammed Al-Sharani
- School of Dentistry, Faculty of Dentistry, Ibb University, Ibb, Yemen;
- Department of Maxillofacial Surgery, School of Stomatology, Harbin Medical University, Harbin 150081, China
| | - Flavia de Almeida Lucas
- Araçatuba Veterinary Medicine School, UNESP—São Paulo State University, Araçatuba, São Paulo 16050-680, Brazil;
| | - Leonardo Perez Faverani
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
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9
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Mahri M, Shen N, Berrizbeitia F, Rodan R, Daer A, Faigan M, Taqi D, Wu KY, Ahmadi M, Ducret M, Emami E, Tamimi F. Osseointegration Pharmacology: A Systematic Mapping Using Artificial Intelligence. Acta Biomater 2021; 119:284-302. [PMID: 33181361 DOI: 10.1016/j.actbio.2020.11.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/25/2022]
Abstract
Clinical performance of osseointegrated implants could be compromised by the medications taken by patients. The effect of a specific medication on osseointegration can be easily investigated using traditional systematic reviews. However, assessment of all known medications requires the use of evidence mapping methods. These methods allow assessment of complex questions, but they are very resource intensive when done manually. The objective of this study was to develop a machine learning algorithm to automatically map the literature assessing the effect of medications on osseointegration. Datasets of articles classified manually were used to train a machine-learning algorithm based on Support Vector Machines. The algorithm was then validated and used to screen 599,604 articles identified with an extremely sensitive search strategy. The algorithm included 281 relevant articles that described the effect of 31 different drugs on osseointegration. This approach achieved an accuracy of 95%, and compared to manual screening, it reduced the workload by 93%. The systematic mapping revealed that the treatment outcomes of osseointegrated medical devices could be influenced by drugs affecting homeostasis, inflammation, cell proliferation and bone remodeling. The effect of all known medications on the performance of osseointegrated medical devices can be assessed using evidence mappings executed with highly accurate machine learning algorithms.
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10
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Mardas N, Dereka X, Stavropoulos A, Patel M, Donos N. The role of strontium ranelate and guided bone regeneration in osteoporotic and healthy conditions. J Periodontal Res 2020; 56:330-338. [PMID: 33368312 DOI: 10.1111/jre.12825] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/03/2020] [Accepted: 10/30/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND/ OBJECTIVES SR is a chemical agent developed for the treatment of osteoporosis. In vitro, SR enhanced replication of osteoprogenitor cells and bone formation. In vivo, in ovariectomized rats SR prevented the biomechanical deterioration of bone while in non-ovariectomized rats, enhanced bone architecture and increased trabecular and cortical bone mass. The aim of this study was to evaluate the effect of SR on bone healing of calvarial critical size defects treated with a deproteinized bovine bone mineral (DBBM) and a collagen barrier (CM), in healthy and osteoporotic rats. MATERIAL AND METHODS Sixty-four, 4-month-old Wistar female rats were used. Osteoporosis was induced by ovariectomy and calcium-deficient diet in half of them. Sixteen ovariectomized (OSR) and 16 healthy (HSR) rats were treated with SR while no medication was administered in the remaining 16 healthy (H) and 16 ovariectomized (O) rats. At 6 weeks after ovariectomy, a 5mm defect was created in each parietal bone of every animal. One defect was treated with DBBM and CM, while the contralateral was left untreated. Qualitative and quantitative histological analysis was performed at 30 and 60 days of healing. A generalized estimating equations test was performed to evaluate the effect of SR and osteoporosis, on new bone formation (NB). RESULTS After 30 days of healing, NB in the untreated defects was 3.4%±1.7%, 4.3%±6.2%, 3.2±4.5%, 15.9±23.5% in O, OSR, H and HSR groups, respectively; after 60 days, NB was 4.7%±4.3%, 11.3%±7%, 7.1%±13.2, 12.1%±13.5%, respectively. In the GBR-treated defects, after 30 days, NB was 2.6%±1.4%, 2.4%±1.6%, 4.5%±4.1%, 10.3%±14.4% in O, OSR, H and HSR groups, respectively; after 60 days, NB was 2.2%±1.6%, 4.3%±4.2%, 7%±5.1%, 10.8%±17.4%, respectively. Osteoporosis (p=0.008) and the absence of strontium ranelate treatment (p=0.01) had a negative impact on NB. CONCLUSION SR may promote bone formation in calvarial defects in healthy and osteoporotic rats, albeit in a moderate extent.
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Affiliation(s)
- Nikos Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK
| | - Xanthippi Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas Stavropoulos
- Division of Regenerative Dental Medicine and Periodontology, CUMD, University of Geneva, Geneva, Switzerland.,Department of Periodontology, Malmö University, Malmö, Sweden
| | | | - Nikolaos Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Bart's & The London School of Dentistry & Medicine, Queen Mary University of London, London, UK
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11
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Farnezi Bassi AP, Bizelli VF, Brasil LFDM, Pereira JC, Al-Sharani HM, Momesso GAC, Faverani LP, Lucas FDA. Is the Bacterial Cellulose Membrane Feasible for Osteopromotive Property? MEMBRANES 2020; 10:membranes10090230. [PMID: 32932731 PMCID: PMC7558580 DOI: 10.3390/membranes10090230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 02/06/2023]
Abstract
Guided bone regeneration was studied to establish protocols and develop new biomaterials that revealed satisfactory results. The present study aimed to comparatively evaluate the efficiency of the bacterial cellulose membrane (Nanoskin®) and collagen membrane Bio-Gide® in the bone repair of 8-mm critical size defects in rat calvaria. Seventy-two adult male rats were divided into three experimental groups (n = 24): the CG—membrane-free control group (only blood clot, negative control), BG—porcine collagen membrane group (Bio-Guide®, positive control), and BC—bacterial cellulose membrane group (experimental group). The comparison periods were 7, 15, 30, and 60 days postoperatively. Histological, histometric, and immunohistochemical analyses were performed. The quantitative data were subjected to 2-way ANOVA and Tukey’s post-test, and p < 0.05 was considered significant. At 30 and 60 days postoperatively, the BG group showed more healing of the surgical wound than the other groups, with a high amount of newly formed bone (p < 0.001), while the BC group showed mature connective tissue filling the defect. The inflammatory cell count at postoperative days 7 and 15 was higher in the BC group than in the BG group (Tukey’s test, p = 0.006). At postoperative days 30 and 60, the area of new bone formed was greater in the BG group than in the other groups (p < 0.001). Immunohistochemical analysis showed moderate and intense immunolabeling of osteocalcin and osteopontin at postoperative day 60 in the BG and BC groups. Thus, despite the promising application of the BC membrane in soft-tissue repair, it did not induce bone repair in rat calvaria.
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Affiliation(s)
- Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
- Correspondence: ; Tel.: +55-18-36363242
| | - Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Leticia Freitas de Mendes Brasil
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Járede Carvalho Pereira
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Hesham Mohammed Al-Sharani
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibb University, Ibb 16015-050, Yemen;
| | - Gustavo Antonio Correa Momesso
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Leonardo P. Faverani
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Flavia de Almeida Lucas
- Department of Animal Clinic, Surgery and Reproduction, São Paulo State University, UNESP, School of Veterinary Medicine, Araçatuba, São Paulo 16050-698, Brazil;
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12
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Gomes-Ferreira PHS, de Oliveira D, Frigério PB, de Souza Batista FR, Grandfield K, Okamoto R. Teriparatide improves microarchitectural characteristics of peri-implant bone in orchiectomized rats. Osteoporos Int 2020; 31:1807-1815. [PMID: 32383065 DOI: 10.1007/s00198-020-05431-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/22/2020] [Indexed: 12/16/2022]
Abstract
UNLABELLED This study evaluated the peri-implant bone repair in orchiectomized rats receiving intermittently PTH 1-34. The treatment returned the bone quality and quantity of the animals to normal in the computerized microtomography, laser confocal microscopy, and histological analysis. The PTH 1-34 promoted marked bone formation with increased volume, improved quality, and greater bone turnover. INTRODUCTION Osteoporosis can be a problem in implant osseointegration. So this study aimed to evaluate the quantity and quality of peri-implant bone repair in orchiectomized Wistar rats receiving intermittently administered PTH 1-34. METHODS Animals (n = 24) were divided into 3 groups: healthy control (SHAM), orchiectomized (ORQ), and orchiectomized and treated with 0.5 μg/kg/day PTH 1-34 (TERI), and each received an implant in the right and left tibial metaphysis, which was allowed to repair for 60 days. The resultant bone formation was evaluated through computerized microtomography (micro-CT) to compare the percent bone volume (BV/TV), trabecular thickness (Tb.Th), trabecular number and separation (Tb.N, Tb.Sp), and bone implant contact (BIC) through the intersection surface (i.S) between groups. Laser confocal microscopy was used to evaluate fluorochrome areas for mineral apposition rate (MAR) and neoformed bone area (NBA). In addition, histological evaluation of calcified tissues with Stevenel blue and alizarin red staining was performed. RESULTS Treatment with PTH 1-34 returned the bone quality and quantity of the osteoporotic animal to normal, as the TERI group presented statistically significant higher values for BV/TV, Tb.Th, and BIC parameters compared with ORQ (p < 0.05), but when compared with SHAM (p > 0.05), no statistical difference was noted. In addition, in the bone turnover analysis (MAR, NBA) for TERI, the highest results are presented, followed by SHAM, and then ORQ (TERI × ORQ: p < 0.05). CONCLUSIONS Intermittent treatment with PTH 1-34 on orchiectomized animals promoted marked bone formation with increased volume, improved quality, and greater bone turnover in the peri-implant space, returning the bone quality and quantity to the present standard in healthy animals.
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Affiliation(s)
- P H S Gomes-Ferreira
- Department of Surgery and Integrated Clinic, Araçatuba Dental School, São Paulo State University, Rua José Bonifácio, 1193, Vila Mendonça, Aracatuba, SP, 16015-050, Brazil.
| | - D de Oliveira
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, SP, Brazil
| | - P B Frigério
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, SP, Brazil
| | - F R de Souza Batista
- Department of Surgery and Integrated Clinic, Araçatuba Dental School, São Paulo State University, Rua José Bonifácio, 1193, Vila Mendonça, Aracatuba, SP, 16015-050, Brazil
| | - K Grandfield
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada
| | - R Okamoto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, SP, Brazil
- Research Productivity Scholarship (Process: 306389/2017-7), Aracatuba, SP, Brazil
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13
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Polo TOB, Silva WPP, Momesso GAC, Lima-Neto TJ, Barbosa S, Cordeiro JM, Hassumi JS, da Cruz NC, Okamoto R, Barão VAR, Faverani LP. Plasma Electrolytic Oxidation as a Feasible Surface Treatment for Biomedical Applications: an in vivo study. Sci Rep 2020; 10:10000. [PMID: 32561767 PMCID: PMC7305204 DOI: 10.1038/s41598-020-65289-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 04/28/2020] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVES In this in vivo animal study, we evaluated the effect of plasma electrolytic oxidation (PEO) coating on the topographic and biological parameters of implants installed in rats with induced osteoporosis and low-quality bones. MATERIALS AND METHODS In total 44 Wistar rats (Rattus novergicus), 6 months old, were submitted to ovariectomy (OXV group) and dummy surgery (SHAM group). After 90 days, the ELISA test was performed and the ovariectomy effectiveness was confirmed. In each tibial metaphysis, an implant with PEO coating containing Ca2+ and P5+ molecules were installed, and the other tibia received an implant with SLA acid etching and blasting (AC) (control surface). After 42 days, 16 rats from each group were euthanized, their tibias were removed for histological and immunohistochemical analysis (OPG, RANKL, OC and TRAP), as well as reverse torque biomechanics. Data were submitted to One-way ANOVA or Kruskal-Wallis tests, followed by a Tukey post-test; P < 0.05. Histological analyses showed higher bone neoformation values among the members of the PEO group, SHAM and OVX groups. Immunohistochemical analysis demonstrated equilibrium in all groups when comparing surfaces for TRAP, OC and RANKL (P > 0.05), whereas OPG showed higher PEO labeling in the OVX group (P < 0.05). Biomechanical analysis showed higher reverse torque values (N.cm) for PEO, irrespective of whether they were OVX or SHAM groups (P < 0.05). CONCLUSION The results indicated that the PEO texturing method favored bone formation and showed higher bone maturation levels during later periods in osteoporotic rats.
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Affiliation(s)
- Tárik Ocon Braga Polo
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - William Phillip Pereira Silva
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Gustavo Antonio Correa Momesso
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Tiburtino José Lima-Neto
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Stéfany Barbosa
- Undergradutate student, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Jairo Matozinho Cordeiro
- University of Campinas (UNICAMP), Piracicaba Dental School, Department of Prosthodontics and Periodontology, Av Limeira, 901, Piracicaba, São Paulo, CEP13414-903, Brazil.,Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Sao Paulo, Brazil
| | - Jaqueline Suemi Hassumi
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Nilson Cristino da Cruz
- Technological Plasma Laboratory (LaPTec), Experimental Campus of Sorocaba, Sao Paulo State University-Unesp, Sorocaba, Brazil
| | - Roberta Okamoto
- Department of Basic Sciences, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Valentim A R Barão
- University of Campinas (UNICAMP), Piracicaba Dental School, Department of Prosthodontics and Periodontology, Av Limeira, 901, Piracicaba, São Paulo, CEP13414-903, Brazil.,Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Sao Paulo, Brazil
| | - Leonardo P Faverani
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil.
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14
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Apostu D, Lucaciu O, Mester A, Oltean-Dan D, Gheban D, Rares Ciprian Benea H. Tibolone, alendronate, and simvastatin enhance implant osseointegration in a preclinical in vivo model. Clin Oral Implants Res 2020; 31:655-668. [PMID: 32279374 DOI: 10.1111/clr.13602] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 02/13/2020] [Accepted: 03/31/2020] [Indexed: 01/15/2023]
Abstract
OBJECTIVES The objective of the study was to evaluate and compare the effect of different drugs such as simvastatin, alendronate, and tibolone for titanium implant osseointegration enhancement. MATERIALS AND METHODS Eighty female albino Wistar rats were equally divided into five groups: Group I (ovariectomy), Group II (sham ovariectomy), Group III (alendronate + ovariectomy), Group IV (simvastatin + ovariectomy), and Group V (tibolone + ovariectomy). Three months after ovariectomy, we performed bilateral titanium intramedullary nailing in all groups, followed by oral administration of alendronate, simvastatin, or tibolone for 12 weeks. Examinations included micro-CT, mechanical pull-out test, histology, and bone serum markers. RESULTS Peri-implant micro-CT analysis showed a significantly higher overall bone tissue in tibolone compared to the ovariectomy group, while no significant difference was found between the treatment groups. Sham ovariectomy, alendronate, and tibolone groups had a higher body mass density compared to ovariectomy and simvastatin groups. All treatment groups had a greater thickness of the peri-implant compact bone layer compared to ovariectomy group, but the results were not statistically significant. Tibolone presented the highest values in pull-out test, but alendronate showed more consistently positive results compared to other groups. Osteocalcin had in the tibolone group almost three times the value in the ovariectomy group, but the results were not statistically significant. CONCLUSION The hypothesis that alendronate, simvastatin, and tibolone enhance the osseointegration process of intramedullary titanium implants in ovariectomized rats has been accepted, while tibolone could offer the best results.
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Affiliation(s)
- Dragos Apostu
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ondine Lucaciu
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alexandru Mester
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Daniel Oltean-Dan
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Dan Gheban
- Department of Anatomical Pathology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Horea Rares Ciprian Benea
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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15
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Gomes-Ferreira PHS, Lisboa-Filho PN, da Silva AC, Bim-Júnior O, de Souza Batista FR, Ervolino-Silva AC, Garcia-Junior IR, Okamoto R. Sonochemical time standardization for bioactive materials used in periimplantar defects filling. ULTRASONICS SONOCHEMISTRY 2019; 56:437-446. [PMID: 31101282 DOI: 10.1016/j.ultsonch.2019.04.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/04/2019] [Accepted: 04/20/2019] [Indexed: 06/09/2023]
Abstract
The aim of this study was determinate the best sonochemical time in order to obtain better bone characteristics when a bioactive material (Biogran) is used in the filling periimplantar defects. In this study, 32 rats were submitted to surgical proceedings to create a periimplantar defect that was filled with Biogran receiving different sonochemical times: 15 (G1), 30 (G2), 45 (G3) or 90 min (G4). The biomaterial was characterized through X-ray diffraction and scanning electron microscopy (SEM). In vivo analysis was performed through micro CT, laser confocal microscopy, immunohistochemistry and evaluation of bone cytoarchitecture through hematoxylin and eosin (HE) staining. The data were submitted to statistical testing, considering a significance level of p < 0.05. Rx diffraction of pure bioglass showed that it is predominantly amorphous; otherwise, there are small peaks at 23° and 31°. SEM shows that the longer the sonochemical time, the less edges the biomaterial will present. Within the groups, G1 and G2 showed the best quantity and quality by micro CT (p > 0.05). The best bone turnover result was found in G1 and G2, otherwise the better results were related to neoformed bone area, bone mineral apposition rate and bone implant contact to G1 (p < 0.05). G1 had the best results in terms of bone cytoarchitectural evaluation and immunohistochemistry. It is possible to conclude that Biogran that received 15 min of sonochemical treatment (G1) presented periimplantar bone repair with the best extracellular matrix properties, including the best quality and quantity of vital bone.
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Affiliation(s)
| | | | - Ana Carolina da Silva
- Department of Physics, São Paulo State University, School of Sciences, Bauru, SP, Brazil
| | - Odair Bim-Júnior
- Department of Physics, São Paulo State University, School of Sciences, Bauru, SP, Brazil
| | | | - Ana Cláudia Ervolino-Silva
- Department of Basic Sciences, São Paulo State University, Araçatuba Dental School, Araçatuba, SP, Brazil
| | - Idelmo Rangel Garcia-Junior
- Department of Surgery and Integrated Clinic, São Paulo State University, Araçatuba Dental School, Araçatuba, SP, Brazil
| | - Roberta Okamoto
- Department of Basic Sciences, São Paulo State University, Araçatuba Dental School, Araçatuba, SP, Brazil
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Teriparatide improves alveolar bone modelling after tooth extraction in orchiectomized rats. Arch Oral Biol 2019; 102:147-154. [DOI: 10.1016/j.archoralbio.2019.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/05/2019] [Accepted: 04/11/2019] [Indexed: 01/09/2023]
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Decreased microRNA-182-5p helps alendronate promote osteoblast proliferation and differentiation in osteoporosis via the Rap1/MAPK pathway. Biosci Rep 2018; 38:BSR20180696. [PMID: 30413613 PMCID: PMC6435538 DOI: 10.1042/bsr20180696] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 10/16/2018] [Accepted: 11/06/2018] [Indexed: 12/21/2022] Open
Abstract
Osteoporosis (OP) is a serious health problem that contributes to osteoporotic structural damage and bone fragility. MicroRNAs (miRNAs) can exert important functions over bone endocrinology. Therefore, it is of substantial significance to clarify the expression and function of miRNAs in bone endocrine physiology and pathology to improve the potential therapeutic value for metabolism-related bone diseases. We explored the effect of microRNA-182-5p (miR-182-5p) on osteoblast proliferation and differentiation in OP rats after alendronate (ALN) treatment by targeting adenylyl cyclase isoform 6 (ADCY6) through the Rap1/mitogen-activated protein kinase (MAPK) signaling pathway. Rat models of OP were established to observe the effect of ALN on OP, and the expression of miR-182-5p, ADCY6 and the Rap1/MAPK signaling pathway-related genes was determined. To determine the roles of miR-182-5p and ADCY6 in OP after ALN treatment, the relationship between miR-182 and ADCY6 was initially verified. Osteoblasts were subsequently extracted and transfected with a miR-182-5p inhibitor, miR-182-5p mimic, si-ADCY6 and the MAPK signaling pathway inhibitor U0126. Cell proliferation, apoptosis and differentiation were also determined. ALN treatment was able to ease the symptoms of OP. miR-182-5p negatively targeted ADCY6 to inhibit the Rap1/MAPK signaling pathway. Cells transfected with miR-182 inhibitor decreased the expression of ALP, BGP and COL I, which indicated that the down-regulation of miR-182-5p promoted cell differentiation and cell proliferation and inhibited cell apoptosis. In conclusion, the present study shows that down-regulated miR-182-5p promotes the proliferation and differentiation of osteoblasts in OP rats through Rap1/MAPK signaling pathway activation by up-regulating ADCY6, which may represent a novel target for OP treatment.
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Weiss SG, Kuchar GO, Gerber JT, Tiboni F, Storrer CLM, Casagrande TC, Giovanini AF, Scariot R. Dose of alendronate directly increases trabeculae expansivity without altering bone volume in rat femurs. World J Orthop 2018; 9:190-197. [PMID: 30364827 PMCID: PMC6198290 DOI: 10.5312/wjo.v9.i10.190] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/20/2018] [Accepted: 06/28/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the effects of sodium alendronate on bone repair in fractures created in appendicular bones.
METHODS Wistar rats (n = 36) were allocated into three distinct groups: group C (control), group B1 (received 1 mg/kg of alendronate), and group B2 (received 3 mg/kg of alendronate). The rats underwent femoral transversal linear fracture surgery using stable internal fixation with a 2.0 mm plate and screw system. Each animal randomly received intraperitoneal applications of sodium alendronate at a dose corresponding to group B1 or B2 three times a week, while the control group received a 0.9% saline solution. Drug administration was performed until euthanasia at 45 d. The femurs were removed and each surgical piece was sent for radiographic, tomographic and microtomographic analysis. Data were submitted to descriptive and inferential statistical analysis (95% confidence interval).
RESULTS Quantitative evaluations of bone neoformation did not show differences among the groups in the radiographic (P = 0.341), microtomographic (P = 0.581) and tomographic evaluations (P = 0.171). In the qualitative microtomographic analysis, a smaller distance was observed between the internal bone trabeculae in the groups that used alendronate (P = 0.05). On the other hand, group B2 had a higher amount of bone trabeculae per unit length when compared to the other groups (P = 0.04).
CONCLUSION It is likely that the use of alendronate did not have a direct influence on the amount of bone neoformation, however it did influence the bone quality in a dose-dependent manner, ultimately affecting the distance and quantity of the trabeculae.
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Affiliation(s)
- Suyany G Weiss
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Gabrielle O Kuchar
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Jennifer T Gerber
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Fernanda Tiboni
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Carmen Lucia M Storrer
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Thaís C Casagrande
- School of Health Science, Department of Biotecnology, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Allan F Giovanini
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
| | - Rafaela Scariot
- School of Health Science, Department of Dentistry, Positivo University, Curitiba, Paraná 81280-330, Brazil
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Yogui FC, Momesso GAC, Faverani LP, Polo TOB, Ramalho-Ferreira G, Hassumi JS, Rossi AC, Freire AR, Prado FB, Okamoto R. A SERM increasing the expression of the osteoblastogenesis and mineralization-related proteins and improving quality of bone tissue in an experimental model of osteoporosis. J Appl Oral Sci 2018; 26:e20170329. [PMID: 29742257 PMCID: PMC5933824 DOI: 10.1590/1678-7757-2017-0329] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/26/2017] [Accepted: 10/09/2017] [Indexed: 01/17/2023] Open
Abstract
Raloxifene is an antiresorptive drug, selective estrogen receptor modulator (SERM) used in the treatment of osteoporosis. Objective To evaluate proteins related to bone repair at the peri-implant bone in a rat model of osteoporosis treated with raloxifene. Material and Methods 72 rats were divided into three groups: SHAM (healthy animals), OVX (ovariectomized animals), and RLX (ovariectomized animals treated with raloxifene). Raloxifene was administered by gavage (1 mg/kg/day). Tibial implantation was performed 30 days after ovariectomy, and animals were euthanized at 14, 42, and 60 days postoperatively. Samples were collected and analyzed by immunohistochemical reactions, molecular analysis, and microtomographic parameters. Results RLX showed intense staining of all investigated proteins at both time points except for RUNX2. These results were similar to SHAM and opposite to OVX, showing mild staining. The PCR gene expression of OC and ALP values for RLX (P<0.05) followed by SHAM and OVX groups. For BSP data, the highest expression was observed in the RLX groups and the lowest expression was observed in the OVX groups (P<0.05). For RUNX2 data, RLX and SHAM groups showed greater values compared to OVX (P<0.05). At 60 days postoperatively, microtomography parameters, related to closed porosity, showed higher values for (Po.N), (Po.V), and (Po) in RLX and SHAM groups, whereas OVX groups showed lower results (P<0.05); (BV) values (P=0.009); regarding total porosity (Po.tot), RLX group had statistically significant lower values than OVX and SHAM groups (P=0.009). Regarding the open porosity (Po.V and Po), the SHAM group presented the highest values, followed by OVX and RLX groups (P<0.05). The Structural Model Index (SMI), RLX group showed a value closer to zero than SHAM group (P<0.05). Conclusions Raloxifene had a positive effect on the expression of osteoblastogenesis/mineralization-related proteins and on micro-CT parameters related to peri-implant bone healing.
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Affiliation(s)
- Fernanda Costa Yogui
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, São Paulo, Brasil
| | - Gustavo Antonio Correa Momesso
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Leonardo Perez Faverani
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Tarik Ocon Braga Polo
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Gabriel Ramalho-Ferreira
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Jaqueline Suemi Hassumi
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Ana Cláudia Rossi
- Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Departamento de Anatomia, Piracicaba, SP, Brasil
| | - Alexandre Rodrigues Freire
- Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Departamento de Anatomia, Piracicaba, SP, Brasil
| | - Felippe Bevilacqua Prado
- Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Departamento de Anatomia, Piracicaba, SP, Brasil
| | - Roberta Okamoto
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, São Paulo, Brasil
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Fabris ALDS, Faverani LP, Gomes-Ferreira PHS, Polo TOB, Santiago-Júnior JF, Okamoto R. Bone repair access of BoneCeramic™ in 5-mm defects: study on rat calvaria. J Appl Oral Sci 2018; 26:e20160531. [PMID: 29340480 PMCID: PMC5777426 DOI: 10.1590/1678-7757-2016-0531] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 05/28/2017] [Indexed: 01/08/2023] Open
Abstract
Objective The aim of this study was to evaluate the osteoconductive potential of BoneCeramic™ on bone healing in rat calvaria 5-mm defects. Material and Methods A 5-mm calvaria bone defect was induced in three groups and the defect was not filled with biomaterial [Clot Group (CG)], autogenous bone (AG), or Bone Ceramic Group (BCG). Animals were euthanized after 14 or 28 days and the bone tissue within the central area of the bone defect was evaluated. Results were compared using ANOVA and Tukey test (p<0.05). Immunohistochemistry was performed using primary antibodies against osteocalcin, RUNX-2, TRAP, VEGF proteins, and 3-dimensional images of the defects in μCT were obtained to calculate bone mineral density (BMD). Results In BCG, the defect was completely filled with biomaterial and new bone formation, which was statistically superior to that in the GC group, at both time-points (p<0.001 for 14 days; p=0.002 for 28 days). TRAP protein showed weak, RUNX-2 showed a greater immunolabeling when compared with other groups, VEGF showed moderate immunostaining, while osteocalcin was present at all time-points analyzed. The μCT images showed filling defect by BCG (BMD= 1337 HU at 28 days). Conclusion Therefore, the biomaterial tested was found to be favorable to fill bone defects for the reporting period analyzed.
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Affiliation(s)
- André Luis da Silva Fabris
- Univ. Estadual Paulista (UNESP) - Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, S P, Brasil
| | - Leonardo Perez Faverani
- Univ. Estadual Paulista (UNESP) - Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, S P, Brasil
| | - Pedro Henrique Silva Gomes-Ferreira
- Univ. Estadual Paulista (UNESP) - Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, S P, Brasil
| | - Tárik Ocon Braga Polo
- Univ. Estadual Paulista (UNESP) - Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, S P, Brasil
| | | | - Roberta Okamoto
- Univ. Estadual Paulista (UNESP) - Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, S P, Brasil
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Gačanin J, Kovtun A, Fischer S, Schwager V, Quambusch J, Kuan SL, Liu W, Boldt F, Li C, Yang Z, Liu D, Wu Y, Weil T, Barth H, Ignatius A. Spatiotemporally Controlled Release of Rho-Inhibiting C3 Toxin from a Protein-DNA Hybrid Hydrogel for Targeted Inhibition of Osteoclast Formation and Activity. Adv Healthc Mater 2017; 6. [PMID: 28758712 DOI: 10.1002/adhm.201700392] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 07/10/2017] [Indexed: 12/17/2022]
Abstract
In osteoporosis, bone structure can be improved by the introduction of therapeutic molecules inhibiting bone resorption by osteoclasts. Here, biocompatible hydrogels represent an excellent option for the delivery of pharmacologically active molecules to the bone tissue because of their biodegradability, injectability, and manifold functionalization capacity. The present study reports the preparation of a multifunctional hybrid hydrogel from chemically modified human serum albumin and rationally designed DNA building blocks. The hybrid hydrogel combines advantageous characteristics, including rapid gelation through DNA hybridization under physiological conditions and a self-healing and injectable nature with the possibility of specific loading and spatiotemporally controlled release of active proteins, making it an advanced biomaterial for the local treatment of bone diseases, for example, osteoporosis. The hydrogels are loaded with a recombinant Rho-inhibiting C3 toxin, C2IN-C3lim-G205C. This toxin selectively targets osteoclasts and inhibits Rho-signaling and, thereby, actin-dependent processes in these cells. Application of C2IN-C3lim-G205C toxin-loaded hydrogels effectively reduces osteoclast formation and resorption activity in vitro, as demonstrated by tartrate-resistant acid phosphatase staining and the pit resorption assay. Simultaneously, osteoblast activity, viability, and proliferation are unaffected, thus making C2IN-C3lim-G205C toxin-loaded hybrid hydrogels an attractive pharmacological system for spatial and selective modulation of osteoclast functions to reduce bone resorption.
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Affiliation(s)
- Jasmina Gačanin
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
| | - Anna Kovtun
- Institute of Orthopedic Research and Biomechanics; Trauma Research Center; University of Ulm; 89081 Ulm Germany
| | - Stephan Fischer
- Institute of Pharmacology and Toxicology; University of Ulm; 89081 Ulm Germany
| | - Victoria Schwager
- Institute of Pharmacology and Toxicology; University of Ulm; 89081 Ulm Germany
| | - Johanna Quambusch
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
| | - Seah Ling Kuan
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
| | - Weina Liu
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
| | - Felix Boldt
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
| | - Chuang Li
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; 100084 Beijing China
| | - Zhongqiang Yang
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; 100084 Beijing China
| | - Dongsheng Liu
- Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education; Department of Chemistry; Tsinghua University; 100084 Beijing China
| | - Yuzhou Wu
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
- School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; 430074 Wuhan China
| | - Tanja Weil
- Institute of Organic Chemistry III; University of Ulm; 89081 Ulm Germany
- Max Planck Institute for Polymer Research; 55128 Mainz Germany
| | - Holger Barth
- Institute of Pharmacology and Toxicology; University of Ulm; 89081 Ulm Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics; Trauma Research Center; University of Ulm; 89081 Ulm Germany
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