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Baldeon-Gutierrez R, Ohkura N, Yoshiba K, Yoshiba N, Tohma A, Takeuchi R, Belal RSI, Edanami N, Takahara S, Gomez-Kasimoto S, Ida T, Noiri Y. Wound-healing Processes After Pulpotomy in the Pulp Tissue of Type 1 Diabetes Mellitus Model Rats. J Endod 2024; 50:196-204. [PMID: 37939821 DOI: 10.1016/j.joen.2023.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/23/2023] [Accepted: 10/29/2023] [Indexed: 11/10/2023]
Abstract
INTRODUCTION Patients with type 1 diabetes mellitus (DM1) tend to have delayed wound healing, even in the pulp tissue. We hypothesized that hyperglycemia affects odontoblast-like cell (OLC) differentiation and is involved in macrophage polarization. Accordingly, we evaluated dental pulp stem cell differentiation and macrophage phenotypes after pulpotomy. METHODS After modifying DM1 rat models by streptozotocin, 8-week-old rats' upper left first molars were pulpotomized with mineral trioxide aggregate. Meanwhile, the control group was administered saline. Immunohistochemical localization of nestin, osteopontin, α-smooth muscles (α-SMAs), and CD68 (pan-macrophage marker) was conducted 7 days after pulpotomy. The OLC differentiation stage was determined using double immunofluorescence of nestin and α-SMA. Double immunofluorescence of CD68 and iNOS was counted as M1 macrophages and CD68 and CD206 as M2 macrophages. Proliferating cell nuclear antigen and Thy-1 (CD90) were evaluated by immunofluorescence. RESULTS In DM1 rats, the reparative dentin bridge was not complete; however, the osteopontin-positive area did not differ significantly from that in controls. Proliferating cell nuclear antigen, indicative of cell proliferation, increased in positive cells in DM1 rats compared with controls. Double-positive cells for α-SMA and nestin indicated many immature OLCs in DM1. CD90 was positive only in controls. CD68-positive cells, especially M1 macrophages, were increased in DM1 rats, allowing the inflammatory stage to continue 7 days after pulpotomy. CONCLUSIONS The condition of DM1 model rats can interfere at various stages of the wound healing process, altering OLC differentiation and macrophage polarization. These findings highlight the importance of normal blood glucose concentrations during pulp wound healing.
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Affiliation(s)
- Rosa Baldeon-Gutierrez
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoto Ohkura
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Kunihiko Yoshiba
- Division of Oral Science for Health Promotion, Department of Oral Health and Welfare, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Nagako Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Aiko Tohma
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryosuke Takeuchi
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Razi Saifullah Ibn Belal
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoki Edanami
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shintaro Takahara
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Susan Gomez-Kasimoto
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takako Ida
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuichiro Noiri
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Jalli R, Mehrabani D, Zare S, Saeedi Moghadam M, Jamhiri I, Manafi N, Mehrabani G, Ghabanchi J, Razeghian Jahromi I, Rasouli-Nia A, Karimi-Busheri F. Cell Proliferation, Viability, Differentiation, and Apoptosis of Iron Oxide Labeled Stem Cells Transfected with Lipofectamine Assessed by MRI. J Clin Med 2023; 12:jcm12062395. [PMID: 36983399 PMCID: PMC10054380 DOI: 10.3390/jcm12062395] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
To assess in vitro and in vivo tracking of iron oxide labeled stem cells transfected by lipofectamine using magnetic resonance imaging (MRI), rat dental pulp stem cells (DPSCs) were characterized, labeled with iron oxide nanoparticles, and then transfected with lipofectamine to facilitate the internalization of these nanoparticles. Cell proliferation, viability, differentiation, and apoptosis were investigated. Prussian blue staining and MRI were used to trace transfected labeled cells. DPSCs were a morphologically spindle shape, adherent to culture plates, and positive for adipogenic and osteogenic inductions. They expressed CD73 and CD90 markers and lacked CD34 and CD45. Iron oxide labeling and transfection with lipofectamine in DPSCs had no toxic impact on viability, proliferation, and differentiation, and did not induce any apoptosis. In vitro and in vivo internalization of iron oxide nanoparticles within DPSCs were confirmed by Prussian blue staining and MRI tracking. Prussian blue staining and MRI tracking in the absence of any toxic effects on cell viability, proliferation, differentiation, and apoptosis were safe and accurate to track DPSCs labeled with iron oxide and transfected with lipofectamine. MRI can be a useful imaging modality when treatment outcome is targeted.
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Affiliation(s)
- Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Comparative and Experimental Medicine Center, Shiraz University of Medical Science, Shiraz 71439-14693, Iran
- Li Ka Shing Center for Health Research and Innovation, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Shahrokh Zare
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Mahdi Saeedi Moghadam
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Iman Jamhiri
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Navid Manafi
- School of Medicine, Zanjan University of Medical Sciences, Zanjan 71439-14693, Iran
| | - Golshid Mehrabani
- School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02215, USA
| | - Janan Ghabanchi
- School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Iman Razeghian Jahromi
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Aghdass Rasouli-Nia
- Department of Oncology, Cross Cancer Institute, Faculty of Medicine, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Feridoun Karimi-Busheri
- Department of Oncology, Cross Cancer Institute, Faculty of Medicine, University of Alberta, Edmonton, AB T6G 1H9, Canada
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Prostaglandin E 2-Transporting Pathway and Its Roles via EP2/EP4 in Cultured Human Dental Pulp. J Endod 2023; 49:410-418. [PMID: 36758673 DOI: 10.1016/j.joen.2023.01.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 02/11/2023]
Abstract
INTRODUCTION Prostaglandin E2 (PGE2) exerts biological actions through its transport pathway involving intracellular synthesis, extracellular transport, and receptor binding. This study aimed to determine the localization of the components of the PGE2-transporting pathway in human dental pulp and explore the relevance of PGE2 receptors (EP2/EP4) to angiogenesis and dentinogenesis. METHODS Protein localization of microsomal PGE2 (mPGES)synthase, PGE2 transporters (multidrug resistance-associated protein-4 [MRP4] and prostaglandin transporter [PGT]), and EP2/EP4 was analyzed using double immunofluorescence staining. Tooth slices from human third molars were cultured with or without butaprost (EP2 agonist) or rivenprost (EP4 agonist) for 1 week. Morphometric analysis of endothelial cell filopodia was performed to evaluate angiogenesis, and real-time polymerase chain reaction was performed to evaluate angiogenesis and odontoblast differentiation markers. RESULTS MRP4 and PGT were colocalized with mPGES and EP2/EP4 in odontoblasts and endothelial cells. Furthermore, MRP4 was colocalized with mPGES and EP4 in human leukocyte antigen-DR-expressing dendritic cells. In the tooth slice culture, EP2/EP4 agonists induced significant increases in the number and length of filopodia and mRNA expression of angiogenesis markers (vascular endothelial growth factor and fibroblast growth factor-2) and odontoblast differentiation markers (dentin sialophosphoprotein and collagen type 1). CONCLUSIONS PGE2-producing enzyme (mPGES), transporters (MRP4 and PGT), and PGE2-specific receptors (EP2/EP4) were immunolocalized in various cellular components of the human dental pulp. EP2/EP4 agonists promoted endothelial cell filopodia generation and upregulated angiogenesis- and odontoblast differentiation-related genes, suggesting that PGE2 binding to EP2/EP4 is associated with angiogenic and dentinogenic responses.
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Ohkura N, Yoshiba K, Yoshiba N, Edanami N, Ohshima H, Takenaka S, Noiri Y. SVCT2-GLUT1-mediated ascorbic acid transport pathway in rat dental pulp and its effects during wound healing. Sci Rep 2023; 13:1251. [PMID: 36690706 PMCID: PMC9870884 DOI: 10.1038/s41598-023-28197-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/13/2023] [Indexed: 01/24/2023] Open
Abstract
Ascorbic acid (AA; vitamin C) plays a crucial role in the biosynthesis and secretion of collagen to produce the organic matrix of hard tissues. Nevertheless, the detailed mechanism by which AA induces reparative dentinogenesis is still unknown. This study aimed to investigate the pathway and function of AA during wound healing in a rat pulpotomy model. Sodium-dependent vitamin C transporter (SVCT) 2 and glucose transporter (GLUT) 1 were detected in odontoblasts, endothelial cells, and nerve fibers in normal pulp tissues. SVCT2 and GLUT1 were also expressed in odontoblast-like cells in pulpotomized tissues of Wistar rats, and immunopositive cells of SVCT2 were significantly increased at 5 days after pulpotomy (p < 0.05). By contrast, osteogenic disorder Shionogi (ODS) rats, which cannot generate AA, also expressed SVCT2 and GLUT1 in normal and wound healing conditions. However, in ODS rats, when compared with the AA-addition group, the formation of dentin bridges in the AA-loss group was not evident, a layer of osteopontin was significantly increased beneath the wound surface (p < 0.05), and alpha smooth muscle actin at the odontoblast-like cells observed along this layer was significantly increased (p < 0.05), but not Nestin. Moreover, the amounts of type 1 collagen generated in the reparative dentin and beneath the wound healing site were significantly diminished (p < 0.05). Macrophages expressing CD68 and CD206 increased beneath the wound site. Hence, AA may be involved in odontoblast-like cell differentiation and anti-inflammatory response during dental pulp wound healing. Our results provide new insights into the function of AA through SVCT2 and GLUT1 in reparative dentinogenesis and may help in developing new therapeutic targets for dental pulpal disease.
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Affiliation(s)
- Naoto Ohkura
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Kunihiko Yoshiba
- Division of Oral Science for Health Promotion, Department of Oral Health and Welfare, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Nagako Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoki Edanami
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Shoji Takenaka
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuichiro Noiri
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Minic S, Florimond M, Sadoine J, Valot-Salengro A, Chaussain C, Renard E, Boukpessi T. Evaluation of Pulp Repair after Biodentine TM Full Pulpotomy in a Rat Molar Model of Pulpitis. Biomedicines 2021; 9:biomedicines9070784. [PMID: 34356848 PMCID: PMC8301331 DOI: 10.3390/biomedicines9070784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 12/14/2022] Open
Abstract
Dental pulp is a dynamic tissue able to heal after injury under moderate inflammatory conditions. Our study aimed to evaluate pulp repair under inflammatory conditions in rats. For this purpose, we developed a rat model of controlled pulpitis followed by pulpotomy with a tricalcium silicate-based cement. Fifty-four cavities were prepared on the occlusal face of the maxillary upper first molar of 27 eight-week-old male rats. E. coli lipopolysaccharides at 10 mg/mL or phosphate-buffered saline PBS was injected after pulp injury. Non-inflamed molars were used as controls. Levels of inflammation-related molecules were measured 6 and 24 h after induction by enzyme-linked immunosorbent assay of coronal pulp samples. Pulp capping and coronal obturation after pulpotomy were performed with tricalcium silicate-based cement. Four and fifteen days after pulpotomy, histological and immunohistochemical analysis was performed to assess pulp inflammation and repair processes. Our results showed significantly higher levels of innate inflammatory proteins (IL-1β, IL-6, TNF-α and CXCL-1) compared with those in controls. Moderate residual inflammation near the capping material was demonstrated by histology and immunohistochemistry, with the presence of few CD68-positive cells. We showed that, in this model of controlled pulpitis, pulpotomy with BiodentineTM allowed the synthesis at the injury site of a mineralized bridge formed from mineralized tissue secreted by cells displaying odontoblastic characteristics. Analysis of these data suggests overall that, with the limitations inherent to findings in animal models, pulpotomy with a silicate-based cement is a good treatment for controlling inflammation and enhancing repair in cases of controlled pulpitis.
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Affiliation(s)
- Sandra Minic
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
| | - Marion Florimond
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
- AP-HP Department of Dental Medicine, Charles Foix and Bretonneau Hospitals, and Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism, 7 Avenue de la République, 94200 Ivry-sur-Seine, France
| | - Jérémy Sadoine
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
| | | | - Catherine Chaussain
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
- AP-HP Department of Dental Medicine, Charles Foix and Bretonneau Hospitals, and Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism, 7 Avenue de la République, 94200 Ivry-sur-Seine, France
| | - Emmanuelle Renard
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, 1 Place Alexis Ricordeau, 44000 Nantes, France
- CHU de Nantes, Service d’Odontologie Restauratrice et Chirurgicale, 1 Place Alexis Ricordeau, 44000 Nantes, France
- Correspondence: (E.R.); (T.B.); Tel.: +33-2-40-41-29-86 (E.R.); +33-1-58-07-67-24 (T.B.)
| | - Tchilalo Boukpessi
- Laboratory of Orofacial Pathologies, Imaging and Biotherapies, School of Dentistry, Laboratoire d’excellence INFLAMEX, Université de Paris, URP 2496, 1 Rue Maurice Arnoux, 92120 Montrouge, France; (S.M.); (M.F.); (J.S.); (C.C.)
- AP-HP Department of Dental Medicine, Charles Foix and Bretonneau Hospitals, and Reference Center for Rare Diseases of Calcium and Phosphorus Metabolism, 7 Avenue de la République, 94200 Ivry-sur-Seine, France
- Correspondence: (E.R.); (T.B.); Tel.: +33-2-40-41-29-86 (E.R.); +33-1-58-07-67-24 (T.B.)
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Tohma A, Ohkura N, Yoshiba K, Takeuchi R, Yoshiba N, Edanami N, Shirakashi M, Ibn Belal RS, Ohshima H, Noiri Y. Glucose Transporter 2 and 4 Are Involved in Glucose Supply during Pulpal Wound Healing after Pulpotomy with Mineral Trioxide Aggregate in Rat Molars. J Endod 2020; 46:81-88. [DOI: 10.1016/j.joen.2019.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 09/05/2019] [Accepted: 10/02/2019] [Indexed: 12/20/2022]
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Takeuchi R, Ohkura N, Yoshiba K, Tohma A, Yoshiba N, Edanami N, Shirakashi M, Belal RSI, Ohshima H, Noiri Y. Immunohistochemistry and gene expression of GLUT1, RUNX2 and MTOR in reparative dentinogenesis. Oral Dis 2019; 26:341-349. [PMID: 31710760 DOI: 10.1111/odi.13230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/30/2019] [Accepted: 10/31/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVES To determine glucose transporter 1 (GLUT1) and runt-related transcription factor 2 (RUNX2) expression during reparative dentinogenesis after pulpotomy with mineral trioxide aggregate (MTA) capping. SUBJECTS AND METHODS Eight-week-old male Wistar rats were used. Pulp of the upper left first molar was exposed and capped with MTA. The upper right first molar of the same animal was used as a control. After collecting molars at various time points, GLUT1, RUNX2 and mammalian target of rapamycin (MTOR) were examined by immunohistochemistry. mRNA levels of Slc2a1 (encoding GLUT1), Runx2, Nestin and Mtor were determined by real-time PCR. RESULTS Pulp exhibited progressive formation of reparative dentine lined with GLUT1- and MTOR-immunoreactive odontoblast-like cells at 5 days after pulpotomy. RUNX2 was detected in nuclei of most pulp tissue cells at day 5 after pulpotomy. Double immunofluorescence staining revealed GLUT1 immunoreactivity on odontoblast-like cells positive for Nestin or RUNX2, 5 days after pulpotomy. Slc2a1, Runx2, Nestin and Mtor mRNA levels were significantly upregulated on days 3-5 after pulpotomy. CONCLUSIONS After rat molar pulpotomy, dental pulp induced formation of reparative dentine with colocalization of GLUT1 and Nestin or RUNX2. Moreover, mRNA levels of Slc2a1, Runx2, Nestin and Mtor were significantly upregulated in pulpotomized dental pulp.
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Affiliation(s)
- Ryosuke Takeuchi
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoto Ohkura
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kunihiko Yoshiba
- Division of Oral Science for Health Promotion, Department of Oral Health and Welfare, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Aiko Tohma
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Nagako Yoshiba
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoki Edanami
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Mari Shirakashi
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Razi Saifullah Ibn Belal
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hayato Ohshima
- Division of Anatomy and Cell Biology of Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuichiro Noiri
- Division of Cariology, Operative Dentistry and Endodontics, Department of Oral Health Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Zhu N, Chatzistavrou X, Papagerakis P, Ge L, Qin M, Wang Y. Silver-Doped Bioactive Glass/Chitosan Hydrogel with Potential Application in Dental Pulp Repair. ACS Biomater Sci Eng 2019; 5:4624-4633. [DOI: 10.1021/acsbiomaterials.9b00811] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ningxin Zhu
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, #22 Zhongguancun Nandajie, Haidian District, Beijing 100081, China
| | - Xanthippi Chatzistavrou
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, United States
| | - Petros Papagerakis
- College of Dentistry and Biomedical Engineering, Toxicology, Pharmacy/Nutrition, Anatomy and Cell Biology Colleges Graduate Programs, University of Saskatchewan, Saskatoon, Canada
| | - Lihong Ge
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, #22 Zhongguancun Nandajie, Haidian District, Beijing 100081, China
| | - Man Qin
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, #22 Zhongguancun Nandajie, Haidian District, Beijing 100081, China
| | - Yuanyuan Wang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, #22 Zhongguancun Nandajie, Haidian District, Beijing 100081, China
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Junqueira MA, Cunha NNO, Caixeta FF, Marques NCT, Oliveira TM, Moretti ABDS, Cosme-Silva L, Sakai VT. Clinical, Radiographic and Histological Evaluation of Primary Teeth Pulpotomy Using MTA And Ferric Sulfate. Braz Dent J 2018; 29:159-165. [PMID: 29898062 DOI: 10.1590/0103-6440201801659] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 01/22/2018] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to evaluate the clinical, radiographic and histological outcomes of the dentin-pulp complex from primary molars after pulpotomy with mineral trioxide aggregate (MTA) and 15.5% ferric sulfate (FS). Thirty-one primary molars were randomly allocated into MTA or FS groups. Clinical and radiographic evaluations were recorded at 3-, 6-, 12- and 18-month follow-up. Teeth at the regular exfoliation period were extracted and processed for histological analysis. Clinical and radiographic data were tested by statistical analysis (p≤0.01). Histological outcomes were analyzed descriptively. All of the treated teeth presented clinical success over the experimental periods. Both groups exhibited 100% of radiographic success at 3, 6 and 12 months. At the 18-month follow-up, one tooth from FS group presented inter-radicular radiolucency (p>0.01). Histologically, the treated teeth presented pulp vitality and absence of inflammatory infiltrate into the connective tissue. Only MTA group showed hard tissue barrier surrounded by odontoblasts over the pulp stumps. Both MTA and 15.5% FS are effective for pulpotomies of primary teeth. Although MTA is considered the first-choice material, FS may be a suitable alternative when treatment cost is an issue.
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Affiliation(s)
- Marina Azevedo Junqueira
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | - Nayara Nery Oliveira Cunha
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | - Fernanda Ferreira Caixeta
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, USP - Universidade de São Paulo, Bauru, SP, Brazil
| | | | - Leopoldo Cosme-Silva
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
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Nakamura Y, Nakanishi T, Tamai I. Membrane Transporters Contributing to PGE 2 Distribution in Central Nervous System. Biol Pharm Bull 2018; 41:1337-1347. [DOI: 10.1248/bpb.b18-00169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yoshinobu Nakamura
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
| | - Takeo Nakanishi
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
| | - Ikumi Tamai
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
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