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Kantovitz KR, Carlos NR, Silva IAPS, Braido C, Costa BC, Kitagawa IL, Nociti-Jr FH, Basting RT, de Figueiredo FKP, Lisboa-Filho PN. TiO 2 nanotube-based nanotechnology applied to high-viscosity conventional glass-ionomer cement: ultrastructural analyses and physicochemical characterization. Odontology 2023; 111:916-928. [PMID: 36917400 DOI: 10.1007/s10266-023-00799-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
This study characterized TiO2 nanotube (TiO2-nt) ultrastructure and morphology, and the physicochemical impact on high-viscosity conventional glass-ionomer cement (GIC). TiO2-nt was synthesized by the alkaline method (n = 3), assessed by scanning (SEM) and transmission electron microscope (TEM), and was added (3%, 5%, 7%-in weight) to KM (Ketac Molar EasyMix™). Analyses included: SEM; Energy-dispersive spectroscopy (EDS); Raman spectroscopy (RAMAN); Setting time with Gillmore needles (ST); Color (Co); Radiopacity (XR); Water sorption (WS); and solubility (SO). Quantitative data were submitted to ANOVA and Tukey's tests (chr = 0.05). External and internal TiO2-nt diameters were 11 ± 2 nm and 6 ± 0 nm, respectively. Data analyses showed: (i) TiO2-nt present into KM matrix, with a concentration-dependent increase of Ti levels into KM, (ii) physical interaction between KM and TiO2-nt, (iii) longer initial ST for the 7% group compared to KM and 3% groups (p ≤ 0.01), (iv) decreased luminosity and yellowness for the 5% and 7% groups, (v) 36% greater radiopacity for the 5% group compared to enamel, dentin, and KM, and (vi) lower SO values for the 5% group, with no significant differences on WS across the groups. TiO2-nt displayed physical interaction with KM matrix, and also modified SO, XR and Co, without affecting ST. This study provides information on the potential impact of TiO2-nt on GIC performance. TiO2-nt may be proposed to boost confidence among dental surgeons in terms of GIC's handling characteristics, success rate and differential diagnostic.
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Affiliation(s)
| | - Natália Russo Carlos
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
| | | | - Caroline Braido
- Pediatric Division, Department of Health Sciences, Orthodontics and Pediatric Dentistry, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Bruna Carolina Costa
- Department of Physics, School of Science, São Paulo State University, UNESP, Bauru, SP, Brazil
| | - Igor Lebedenco Kitagawa
- Federal Institute of Education, Science and Technology of São Paulo, IFSP, Birigui, SP, Brazil
| | - Francisco Humberto Nociti-Jr
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
- Division of Periodontics, Department of Prosthodontics and Periodontics, Piracicaba Dental School, University of Campinas, UNICAMP, Piracicaba, SP, Brazil
| | - Roberta Tarkany Basting
- Faculdade São Leopoldo, SLMANDIC, Rua José Rocha Junqueira, 13, Campinas, SP, 13045-755, Brazil
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Pessoa ADS, Tokuhara CK, Fakhoury VS, Pagnan AL, Oliveira GSND, Sanches MLR, Inacio KK, Costa BC, Ximenes VF, Oliveira RCD. The dimerization of methyl vanillate improves its effect against breast cancer cells via pro-oxidant effect. Chem Biol Interact 2022; 361:109962. [PMID: 35523312 DOI: 10.1016/j.cbi.2022.109962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 04/07/2022] [Accepted: 04/22/2022] [Indexed: 11/18/2022]
Abstract
Phenolic phytochemicals are a group of organic compounds with potent antioxidant features but can also act as powerful pro-oxidants. These characteristics are effective in reducing metastatic potential in cancer cells, and this effect has been associated with reactive oxygen species (ROS). Methyl vanillate (MV) and its dimer, methyl divanillate (DMV), are potent antioxidants. In the present study, we investigated the effects of MV and DMV on breast cancer cell lines MCF-7 and MDA-MB-231 and compared the results using the non-tumor cell line HB4a. Our results indicated that the compounds performed a pro-oxidant action, increasing the generation of ROS. DMV decreased the viability cell, showing a higher apoptotic effect and inhibition of proliferation than MV on both cell lines, with significant differences between groups (p < 0.05). Some modulation of NOX4, NOX5, and DUOX were observed, but the results did not correlate with the intracellular production of ROS. The dimer showed more effectivity and pro-oxidant effect than MV, impacting cell line MCF-7 in higher extension than MDA-MB-231. In conclusion, and corroborating with reported works, the dimerization of natural phenolic compounds was associated with improved beneficial biological effects as a potential cytotoxic agent to tumor cells.
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Affiliation(s)
- Adriano de Souza Pessoa
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil
| | - Cintia Kazuko Tokuhara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil
| | | | - Ana Lígia Pagnan
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil
| | | | | | - Kelly Karina Inacio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil
| | - Bruna Carolina Costa
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil
| | - Valdecir Farias Ximenes
- Department of Chemistry, Faculty of Sciences, UNESP - São Paulo State University, Bauru, São Paulo, Brazil
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Bighetti ACC, Cestari TM, Santos PS, Arantes RVN, Paini S, Assis GF, Costa BC, de Oliveira FA, Tokuhara CK, de Oliveira RC, Taga R. In vitro and in vivo assessment of CaP materials for bone regenerative therapy. The role of multinucleated giant cells/osteoclasts in bone regeneration. J Biomed Mater Res B Appl Biomater 2019; 108:282-297. [PMID: 31009176 DOI: 10.1002/jbm.b.34388] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/22/2019] [Accepted: 03/30/2019] [Indexed: 12/15/2022]
Abstract
In this work, bone formation/remodeling/maturation was correlated with the presence of multinucleated giant cells (MGCs)/osteoclasts (tartrate-resistant acid phosphatase [TRAP]-positive cells) on the surface of beta-tricalcium phosphate (β-TCP), sintered deproteinized bovine bone (sDBB), and carbonated deproteinized bovine bone (cDBB) using a maxillary sinus augmentation (MSA) in a New Zealand rabbit model. Microtomographic, histomorphometric, and immunolabeling for TRAP-cells analyses were made at 15, 30, and 60 days after surgery. In all treatments, a faster bone formation/remodeling/maturation and TRAP-positive cells activity occurred in the osteotomy region of the MSA than in the middle and submucosa regions. In the β-TCP, the granules were rapidly reabsorbed by TRAP-positive cells and replaced by bone tissue. β-TCP enabled quick bone regeneration/remodeling and full bone and marrow restoration until 60 days, but with a significant reduction in MSA volume. In cDBB and sDBB, the quantity of TRAP-positive cells was smaller than in β-TCP, and these cells were associated with granule surface preparation for osteoblast-mediated bone formation. After 30 days, more than 80% of granule surfaces were surrounded and integrated by bone tissue without signs of degradation, preserving the MSA volume. Overall, the materials tested in a standardized preclinical model led to different bone formation/remodeling/maturation within the same repair process influenced by different microenvironments and MGCs/osteoclasts. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 108B:282-297, 2020.
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Affiliation(s)
- Ana Carolina Cestari Bighetti
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Tania Mary Cestari
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Paula Sanches Santos
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Ricardo Vinicius Nunes Arantes
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Suelen Paini
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Gerson Francisco Assis
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Bruna Carolina Costa
- Physics Department, Advanced Materials Laboratory, São Paulo State University, UNESP, Avenue Luiz Edmundo Carrijo Coube 14-01, Bauru, São Paulo, 17033-360, Brazil
| | - Flávia Amadeu de Oliveira
- Laboratory of Biochemistry of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Cintia Kazuko Tokuhara
- Laboratory of Biochemistry of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Rodrigo Cardoso de Oliveira
- Laboratory of Biochemistry of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Rumio Taga
- Laboratory of Histology of Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla 9-75, Bauru, São Paulo, 17012-901, Brazil
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Zens MA, Icochea AL, Costa BC, Lisboa-Filho PN, Bastos NA, Francisconi PAS, Furuse AY, Foschini C, Gerlin Neto V, Borges AFS. A new approach for Y-TZP surface treatment: evaluations of roughness and bond strength to resin cemen. J Appl Oral Sci 2019; 27:e20180449. [PMID: 30994777 PMCID: PMC6459228 DOI: 10.1590/1678-7757-2018-0449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/28/2018] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE This study aims to evaluate the effect of sonochemical treatment on the surface of yttria-stabilized tetragonal zirconia (Y-TZP) before and after the final sintering. MATERIAL AND METHODS Twenty-eight Y-TZP discs were divided into four groups (n=7), according to surface treatment: PRE: pre-sintering sonication with 30% nominal power for 15 min; POS: post-sintering sonication with 30% nominal power for 15 min; JAT: air abrasion with 50-μm alumina particles; and CON: control group with no treatment. The POS and JAT groups were sintered before sonication and the PRE group after sonication. Surface roughness was analyzed using confocal microscopy, after which resin cement cylinders were placed on the surface of the Y-TZP discs and subjected to mechanical microshear bond strength test until fracture. Surface roughness and microshear bond strength values underwent ANOVA and the Tukey tests. RESULTS The surface roughness values for the PRE group (299.91 nm) and the POS group (291.23 nm) were not significantly different (p≥0.05), statistically, and the surface roughness value of the JAT group (925.21 nm) was higher than those of PRE and POS (p=0.007) groups. The mechanical microshear bond strength test showed that there was no statistically significant difference between the groups (p=0.08). CONCLUSIONS Therefore, the results showed that sonochemical treatment modifies the Y-TZP surface and is similar to the well-established sandblasting surface treatment regarding the strength of the bond with the resin cement.
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Affiliation(s)
- Marlyni Aparecida Zens
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Dentários, Bauru, São Paulo, Brasil
| | - Alfredo Llerena Icochea
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Dentários, Bauru, São Paulo, Brasil
| | - Bruna Carolina Costa
- Universidade Estadual Paulista (UNESP), Departamento de Física, Bauru, São Paulo, Brasil
| | | | - Natália Almeida Bastos
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Dentários, Bauru, São Paulo, Brasil
| | - Paulo Afonso Silveira Francisconi
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Dentários, Bauru, São Paulo, Brasil
| | - Adilson Yoshio Furuse
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Dentários, Bauru, São Paulo, Brasil
| | - Cesar Foschini
- Universidade Estadual Paulista (UNESP), Departamento de Engenharia Mecânica, Bauru, São Paulo, Brasil
| | - Vicente Gerlin Neto
- Universidade Estadual Paulista (UNESP), Departamento de Engenharia Mecânica, Bauru, São Paulo, Brasil
| | - Ana Flávia Sanches Borges
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Dentística, Endodontia e Materiais Dentários, Bauru, São Paulo, Brasil
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Santos PS, Cestari TM, Paulin JB, Martins R, Rocha CA, Arantes RVN, Costa BC, Dos Santos CM, Assis GF, Taga R. Osteoinductive porous biphasic calcium phosphate ceramic as an alternative to autogenous bone grafting in the treatment of mandibular bone critical-size defects. J Biomed Mater Res B Appl Biomater 2017; 106:1546-1557. [PMID: 28755493 DOI: 10.1002/jbm.b.33963] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 12/02/2016] [Accepted: 12/24/2016] [Indexed: 01/07/2023]
Abstract
The bone-induction capacity of a porous biphasic calcium phosphate (pBCP) using heterotopic implantation in mouse (mHI-model) and its efficacy as substitute for autograft in mandibular critical-size defect in rabbit (rabMCSD-model) was investigated. In mHI-model, pBCP was implanted into the thigh muscles and bone formation was histomorphometrically and immunohistochemically evaluated. In rabMCSD-model, 13 mm bone defects were treated with pBCP or autograft and bone repair comparatively evaluated by radiographic and histomorphometric methods. In mHI-model, formed bone and immunolabeling for bone morphogenetic protein-2 and osteopontin were observed in 90% of pBCP implanted samples after 12 weeks. In rabMCSD-model neither statistically significant difference was found in newly formed bone between pBCP and autograft groups at 4 weeks (18.8 ± 5.5% vs 27.1 ± 5.6%), 8 weeks (22.3 ± 2.7% vs 26.2 ± 5.1), and 12 weeks (19.6 ± 4.7% vs 19.6 ± 2.3%). At 12 weeks, the stability and contour of the mandible were restored in both treatments. Near tooth remaining, pBCP particles were covered by small amount of mineralized tissue exhibiting perpendicular attachments of collagen fiber bundles with histological characteristic of acellular cementum. Within the limitations of this study, it was concluded that pBCP is osteoinductive and able to stimulate the new formation of bone and cementum-like tissues in rabMCSD-model, suggesting that it may be an alternative to treatment of large bone defect and in periodontal regenerative therapy. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1546-1557, 2018.
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Affiliation(s)
- Paula Sanches Santos
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
| | - Tania Mary Cestari
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
| | - Jéssica Botto Paulin
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
| | - Renato Martins
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
| | - Caroline Andrade Rocha
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
| | | | - Bruna Carolina Costa
- Physics Department, Advanced Materials Laboratory, São Paulo State University, UNESP, Bauru, Sao Paulo, 17033-360, Brazil
| | - Cássio Morilla Dos Santos
- Physics Department, Advanced Materials Laboratory, São Paulo State University, UNESP, Bauru, Sao Paulo, 17033-360, Brazil
| | - Gerson Francisco Assis
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
| | - Rumio Taga
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Bauru, Sao Paulo, 17012-901, Brazil
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Abstract
Bovine serum albumin (BSA) is highly water soluble and binds drugs or inorganic substances noncovalently for their effective delivery to various affected areas of the body. Due to the well-defined structure of the protein, containing charged amino acids, albumin nanoparticles (NPs) may allow electrostatic adsorption of negatively or positively charged molecules, such that substantial amounts of drug can be incorporated within the particle, due to different albumin-binding sites. During the synthesis procedure, pH changes significantly. This variation modifies the net charge on the surface of the protein, varying the size and behavior of NPs as the drug delivery system. In this study, the synthesis of BSA NPs, by a desolvation process, was studied with salicylic acid (SA) as the active agent. SA and salicylates are components of various plants and have been used for medication with anti-inflammatory, antibacterial, and antifungal properties. However, when administered orally to adults (usual dose provided by the manufacturer), there is 50% decomposition of salicylates. Thus, there has been a search for some time to develop new systems to improve the bioavailability of SA and salicylates in the human body. Taking this into account, during synthesis, the pH was varied (5.4, 7.4, and 9) to evaluate its influence on the size and release of SA of the formed NPs. The samples were analyzed using field-emission scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, zeta potential, and dynamic light scattering. Through fluorescence, it was possible to analyze the release of SA in vitro in phosphate-buffered saline solution. The results of chemical morphology characterization and in vitro release studies indicated the potential use of these NPs as drug carriers in biological systems requiring a fast release of SA.
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Affiliation(s)
- ES Bronze-Uhle
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - BC Costa
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - VF Ximenes
- Department of Chemistry, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - PN Lisboa-Filho
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
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