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Aysal H, Atasoy N, Kömüroğlu AU. Protective Effect of Calcium Fructoborate Against Carbon Tetrachloride-Induced Toxicity in Rats. Biol Trace Elem Res 2023; 201:800-809. [PMID: 35353337 DOI: 10.1007/s12011-022-03202-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 03/11/2022] [Indexed: 01/21/2023]
Abstract
Carbon tetrachloride (CCl4) is a xenbiotic that can cause cellular damage with free radical production. Calcium fructoborate (CFB) is a boron-based nutritional supplement with antioxidant properties. Calcium fructoborate used in our study is marketed by Future Ceutical Corporation as FruiteX-B, which has a chemical structure similar to the natural form of boron found in edible plants. In this study, it was aimed to determine the antioxidant activity, DNA damage, and histopathological effects of CFB on the liver and kidney tissues of rats in the toxicity induced by CCl4. During 14 days of treatment, 42 wistar albino rats were divided into 7 in each group, control group, olive oil (0.25 ml twice a week), CFB (1 mg/day), CFB-CCl4 (1 mg/day, twice a week 0.5 ml), ZY-CFB (0.25 ml/twice a week, 1 mg/2 times day twice), and CCl4 (0.5 ml twice a week). AST, ALT, HDL, LDH, urea, creatinine, triglyceride, total protein and albumin levels were analyzed in the blood serum of rats. The antioxidant defense system enzymes CAT, GR, GPx, SOD activities and GSH, MDA and 8-OHdG levels in liver and kidney tissues were determined and evaluated. In addition, liver and kidney tissues were examined with only hispatological tests. As a result of the findings, it shows that CCl4 disrupts antioxidant defense mechanisms by disrupting some enzyme systems in the kidney and liver. CFB (Fruit-XB), a boronbased dietary supplement, regulates antioxidant metabolism by strengthening biochemical metabolic profiles against oxidation, and also has a protective effect against DNA damage caused by oxidation. Thus, it was concluded that CFB has antioxidant property against CCl4-induced liver and kidney toxicity.
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Affiliation(s)
- Hatice Aysal
- Department of Chemistry, Faculty of Science, Van Yüzüncü Yıl University, Van, Turkey
| | - Nurhayat Atasoy
- Department of Chemistry, Faculty of Science, Van Yüzüncü Yıl University, Van, Turkey.
| | - Ahmet Ufuk Kömüroğlu
- Van Vocational Higher School of Healthcare Studies, Van Yüzüncü Yıl University, Van, Turkey
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2
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Analysis of Monomer Release from Different Composite Resins after Bleaching by HPLC. Life (Basel) 2022; 12:life12111713. [PMID: 36362868 PMCID: PMC9699366 DOI: 10.3390/life12111713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/22/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022] Open
Abstract
(1) Background: This study aimed to examine the effect of bleaching agents on the release of triethylenae glycol dimethacrylate, 2-hydroxyethyl methacrylate, bisphenol A, urethane dimethacrylate, and bisphenol A-glycidyl methacrylate monomers, which are released from different composite resins, using the high-performance liquid chromatography (HPLC) method. (2) Methods: Ninety disc-shaped specimens were produced and immersed in artificial saliva. After different bleaching applications [office type bleaching (OB) and home type bleaching (HB)], the specimens were immersed in a 75 wt% ethanol/water solution, and the released monomers were analyzed by HPLC at predefined time intervals: 1, 7, and 28 days. The Kruskal−Wallis and Mann−Whitney U tests were conducted for statistical analysis (p = 0.05). (3) Results: The monomers were released at all times from all composite specimens. The monomer release was increased over time. The highest monomer release was detected on day 28. Bleaching applications affected monomer release. No statistical difference was found between OB and HB applications (p > 0.05). The most released monomer was Bisphenol-A in all composites. (4) Conclusion: Given that a residual monomer release from composite resins has a toxic effect and that bleaching treatments increase this release, a treatment protocol should be made in accordance with the manufacturer’s instructions.
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3
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Barra T, Falanga A, Bellavita R, Pisano J, Laforgia V, Prisco M, Galdiero S, Valiante S. Neuroprotective Effects of gH625-lipoPACAP in an In Vitro Fluid Dynamic Model of Parkinson’s Disease. Biomedicines 2022; 10:biomedicines10102644. [PMID: 36289905 PMCID: PMC9599564 DOI: 10.3390/biomedicines10102644] [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: 06/30/2022] [Revised: 10/06/2022] [Accepted: 10/12/2022] [Indexed: 11/16/2022] Open
Abstract
Parkinson’s disease (PD) is an aggressive and devastating age-related disorder. Although the causes are still unclear, several factors, including genetic and environmental, are involved. Except for symptomatic drugs, there are not, to date, any real cures for PD. For this purpose, it is necessary develop a model to better study this disease. Neuroblastoma cell line, SH-SY5Y, differentiated with retinoic acid represents a good in vitro model to explore PD, since it maintains growth cells to differentiated neurons. In the present study, SH-SY5Y cells were treated with 1-methyl-4-phenylpyridinium (MPP+), a neurotoxin that induces Parkinsonism, and the neuroprotective effects of pituitary adenylate cyclase-activating polypeptide (PACAP), delivered by functionalized liposomes in a blood–brain barrier fluid dynamic model, were evaluated. We demonstrated PACAP neuroprotective effects when delivered by gH625-liposome on MPP+-damaged SH-SY5Y spheroids.
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Affiliation(s)
- Teresa Barra
- Department of Biology, University of Naples Federico II, 80125 Naples, Italy
| | - Annarita Falanga
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
| | - Rosa Bellavita
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Jessica Pisano
- Department of Biology, University of Naples Federico II, 80125 Naples, Italy
| | - Vincenza Laforgia
- Department of Biology, University of Naples Federico II, 80125 Naples, Italy
| | - Marina Prisco
- Department of Biology, University of Naples Federico II, 80125 Naples, Italy
| | - Stefania Galdiero
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Salvatore Valiante
- Department of Biology, University of Naples Federico II, 80125 Naples, Italy
- Correspondence: ; Tel.: +39-081-2535169
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Guan M, Chu G, Jin J, Liu C, Cheng L, Guo Y, Deng Z, Wang Y. A Combined Cyanine/Carbomer Gel Enhanced Photodynamic Antimicrobial Activity and Wound Healing. NANOMATERIALS 2022; 12:nano12132173. [PMID: 35808008 PMCID: PMC9268119 DOI: 10.3390/nano12132173] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/22/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023]
Abstract
As a non-invasive and non-specific therapeutic approach, photodynamic therapy (PDT) has been used to treat antibiotic-resistant bacteria with encouraging efficacy. Inspired by light, the photosensitizers can produce excessive reactive oxygen species (ROS) and, thus, effectively destroy or kill bacteria. Cyanine (Cy), a traditional photosensitizer for PDT, has the advantages of low cytotoxicity and high ROS yield. Yet, the water solubility and photostability for Cy are poor, which substantially limit its antibacterial efficiency and clinical translation. Herein, we combined Cy with carbomer gel (CBMG) to form a photodynamic Cy-CBMG hydrogel. In this system, Cy was evenly dispersed in CBMG, and CBMG significantly improved the water solubility and photostability of Cy via electrostatic interactions. The developed Cy-CBMG gel had less photodegradation under laser irradiation and thus can effectively elevate ROS accumulation in bacteria. The Cy-CBMG compound presented remarkable ROS-induced killing efficacy against methicillin-resistant Staphylococcus aureus (93.0%) and extended-spectrum β-lactamase-producing Escherichia coli (88.7%) in vitro. Moreover, as a potential wound dressing material, the Cy-CBMG hydrogel exhibited excellent biocompatibility and effective antimicrobial ability to promote wound healing in vivo. Overall, this work proposed a practical strategy to synthesize a photosensitizer–excipient compound to enhance the photophysical property and antibacterial efficacy for PDT.
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Affiliation(s)
- Ming Guan
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (M.G.); (G.C.); (J.J.); (C.L.); (L.C.)
| | - Guangyu Chu
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (M.G.); (G.C.); (J.J.); (C.L.); (L.C.)
| | - Jiale Jin
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (M.G.); (G.C.); (J.J.); (C.L.); (L.C.)
| | - Can Liu
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (M.G.); (G.C.); (J.J.); (C.L.); (L.C.)
| | - Linxiang Cheng
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (M.G.); (G.C.); (J.J.); (C.L.); (L.C.)
| | - Yi Guo
- Shaanxi Key Laboratory of Brain Disorders, Xi’an Medical University, Xi’an 710021, China;
| | - Zexing Deng
- College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
- Correspondence: (Z.D.); (Y.W.); Tel.: +86-136-79187589 (Z.D.); +86-0571-87236128 (Y.W.)
| | - Yue Wang
- Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; (M.G.); (G.C.); (J.J.); (C.L.); (L.C.)
- Correspondence: (Z.D.); (Y.W.); Tel.: +86-136-79187589 (Z.D.); +86-0571-87236128 (Y.W.)
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Pierau L, Elian C, Akimoto J, Ito Y, Caillol S, Versace DL. Bio-sourced Monomers and Cationic Photopolymerization: The Green combination towards Eco-Friendly and Non-Toxic Materials. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101517] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Characteristics of a novel photoinitiator aceanthrenequinone-initiated polymerization and cytocompatibility of its triggered polymer. Toxicol Rep 2022; 9:191-203. [PMID: 35169545 PMCID: PMC8829579 DOI: 10.1016/j.toxrep.2022.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/13/2021] [Accepted: 01/25/2022] [Indexed: 11/26/2022] Open
Abstract
AATQ is a novel photosensitizer with high-photoinitiating conversion efficiency at a relatively low concentration under 455 nm-blue light. Cytotoxicity of AATQ to different tissue types of cells is much lower than widely used-BAPO. Cytocompatibility of AATQ-initiated polymer is significantly superior to PANQ, but inferior to CQ. AATQ offers an alternative in industrial or biomedical areas, especially in the required low concentration of photoinitiators.
A number of photoinitiators are available in chemical industry, but less of them in biomedicine or clinical therapy due to the limitation of their cytotoxicity and biocompatibility. Thus, it is urgently necessary to find non-toxic or low-toxic photoinitiators to meet clinical demands. Aceanthrenequinone (AATQ) is a novel photosensitizer with high-photoinitiating ability, but no reports contribute, to date, to its cytotoxicity and biocompatibility. Here, primary cells and various cell lines were exposed to different concentrations of AATQ with or without irradiation. AATQ had the similar photoinitiating conversion efficiency to the extensively used bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide (BAPO) and higher one than 9,10-phenanthrenequinone (PANQ) with the similar extent of polymerization in depth within a certain range, but displayed much lower cytotoxicity than BAPO under non-irradiation or irradiation. The biocompatibility of BisGMA/TEGDMA polymer prepared by AATQ was superior to that of PANQ, but inferior to that of camphorquinone (CQ) although the far lower dose of AATQ is enough to initiate polymerization of monomer than that of CQ. Hence, AATQ offers a valuable alternative in applications of industrial or biomedical areas.
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7
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Reidelbach C, Garcia-Käufer M, Wingert N, Arif A, Vach K, Hellwig E, Gminski R, Polydorou O. Cytotoxicity and estrogenicity in simulated dental wastewater after grinding of resin-based materials. Dent Mater 2021; 37:1486-1497. [PMID: 34376295 DOI: 10.1016/j.dental.2021.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 06/02/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE This study evaluated the cytotoxic and estrogenic effects of dust and eluates released into simulated wastewater after grinding of dental resin-based materials. METHODS Four materials were used: ceram.x® universal, Filtek™ Supreme XTE, Lava™ Ultimate and Core-X™ flow. From each composite material, samples (5 × 2 mm, n = 50) were prepared according to the manufacturers' instructions. Lava™ Ultimate was used as blocks. All samples were ground to dust with a diamond bur (106 μm) and suspended in distilled water at 60 mg/mL. After storage for 72 h, the suspensions were separated into a soluble (eluate) and a particulate (dust) fraction. Eluates and dusts were evaluated for inhibition of Vibrio fischeri bioluminescence and cytotoxicity on human A549 lung cells (WST-1-Assay). The estrogenic activity was assessed by YES-Assay using Saccharomyces cerevisiae. Additionally, dental monomers (BisGMA, BisEMA, UDMA, TEGDMA, HEMA) and Bisphenol A were investigated. RESULTS All eluates showed inhibition of V. fischeri bioluminescence at concentrations above 1.1 mg/mL (p < 0.05). The activity of the eluates of ceram.x® universal and Filtek™ Supreme XTE was significantly higher than Lava™ Ultimate and Core-X™ flow (p < 0.05). In the WST-1-Assay, all materials induced cytotoxic effects at concentrations of 0.1 mg/mL (p < 0.05), while no significant differences were detected among them. The tested materials revealed no estrogenic activity. All dental monomers and Bisphenol A showed concentration dependent cytotoxic effects (p < 0.05), whereas only Bisphenol A induced an estrogenic effect (p < 0.01). SIGNIFICANCE Dust and eluates of resin-based dental materials released into wastewater exert bactericidal and cytotoxic effects in vitro. However, they reveal no estrogenic effect.
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Affiliation(s)
- C Reidelbach
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Faculty of Medicine, Medical Center - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany.
| | - M Garcia-Käufer
- Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Straße 115b, 79106 Freiburg, Germany
| | - N Wingert
- Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Straße 115b, 79106 Freiburg, Germany
| | - A Arif
- Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Straße 115b, 79106 Freiburg, Germany
| | - K Vach
- Institute for Medical Biometry and Statistics, Faculty of Medicine, Medical Center - University of Freiburg, Stefan-Meier-Straße 26, 79104 Freiburg, Germany
| | - E Hellwig
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Faculty of Medicine, Medical Center - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
| | - R Gminski
- Institute for Infection Prevention and Hospital Epidemiology, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Straße 115b, 79106 Freiburg, Germany
| | - O Polydorou
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Faculty of Medicine, Medical Center - University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
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8
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Zhou Z, Wang Y, Liu H, Wang L, Liu Z, Yuan H, Liu L, Guo M, Wang D. PBN protects NP cells from AAPH-induced degenerative changes by inhibiting the ERK1/2 pathway. Connect Tissue Res 2021; 62:359-368. [PMID: 32183547 DOI: 10.1080/03008207.2020.1743697] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Aim: Intervertebral disc (IVD) degeneration (IDD) is one of the main causes for spinal degenerative diseases, such as disk herniation, spinal canal stenosis, and spinal deformities. Growing evidence has highlighted the contribution of oxidative stress in pathogenesis of IDD, and antioxidant treatment is thus considered to be a promising therapeutic strategy for IDD. The aim of this study was to investigate whether N-tert-butyl-α-phenylnitrone (PBN), a free radical scavenger, could attenuate the pathological changes of IDD by alleviating oxidative stress.Materials and Methods: Nucleus pulposus (NP) cells were isolated from rabbit lumbar disks. MTT assay, real-time PCR and western blotting were employed to evaluate the effects of PBN on oxidative damages induced by 2,2'-azobis (2-amidinopropane) dihydrochloride (AAPH) in NP cells.Results: AAPH induced oxidative stress and the subsequent degenerative changes in NP cells via the ERK/MAPK pathway. On the contrary, the oxidative stress induced by AAPH was significantly ameliorated by PBN. Moreover, PBN also attenuated AAPH-induced expression of matrix degradation proteases and apoptosis. PBN suppresses AAPH-induced activation of ERK/MAPK pathway, which may be the underlying mechanism for the protective effects of PBN.Conclusions: Our study for the first time identified a novel role and mechanism for PBN in protecting the IVD against oxidative stress, matrix catabolism and apoptosis, which may have implications for its further application in combating IVD degenerative diseases.Abbreviations: AAPH: 2,2'-azobis(2-methylpropanimidamidine) dihydrochloride; ADAMTS: a disintegrin and metalloproteinase with thrombospondin motifs; AF: annulus fibrosus; CEP: cartilage endplate; DCF: 2'7'-dichlorofluorescein; IDD: intervertebral disc degeneration; IVD: intervertebral disc; LPS: lipopolysaccharide; MMP: matrix metalloproteinase; MTT: methyl-thiazolyl-tetrazolium; NP: nucleus pulposus; PBN: N-tert-butyl-alfa-phenylnitrone; PGs: proteoglycans; ROS: reactive oxygen species; SDS: sodium dodecyl sulfate.
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Affiliation(s)
- Zhenggang Zhou
- Medical College, Qingdao University, Qingdao, Shandong, China
| | - Yini Wang
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Haifei Liu
- Qingdao Municipal Hospital, Department of Spine Surgery Center, The 3rd Clinical College of Qingdao University, Qingdao, Shandong, China
| | - Lu Wang
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Zonghan Liu
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Huimei Yuan
- Department of Exercise Physiology, Beijing Sport University, Beijing, China
| | - Lantao Liu
- Qingdao Municipal Hospital, Department of Spine Surgery Center, The 3rd Clinical College of Qingdao University, Qingdao, Shandong, China
| | - Mingbo Guo
- Department of Osteology, Sunshine Union Hospital, Weifang, Shandong, China
| | - Dechun Wang
- Qingdao Municipal Hospital, Department of Spine Surgery Center, The 3rd Clinical College of Qingdao University, Qingdao, Shandong, China
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Manaspon C, Jongwannasiri C, Chumprasert S, Sa-Ard-Iam N, Mahanonda R, Pavasant P, Porntaveetus T, Osathanon T. Human dental pulp stem cell responses to different dental pulp capping materials. BMC Oral Health 2021; 21:209. [PMID: 33902558 PMCID: PMC8074430 DOI: 10.1186/s12903-021-01544-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/01/2021] [Indexed: 12/28/2022] Open
Abstract
Background Direct pulp capping is a vital pulp therapy for a pin-point dental pulp exposure. Applying a pulp capping material leads to the formation of a dentin bridge and protects pulp vitality. The aim of this study was to compare the effects of four dental materials, DyCal®, ProRoot® MTA, Biodentine™, and TheraCal™ LC in vitro. Methods Human dental pulp stem cells (hDPs) were isolated and characterized. Extraction medium was prepared from the different pulp capping materials. The hDP cytotoxicity, proliferation, and migration were examined. The odonto/osteogenic differentiation was determined by alkaline phosphatase, Von Kossa, and alizarin red s staining. Osteogenic marker gene expression was evaluated using real-time polymerase chain reaction. Results ProRoot® MTA and Biodentine™ generated less cytotoxicity than DyCal® and TheraCal™ LC, which were highly toxic. The hDPs proliferated when cultured with the ProRoot® MTA and Biodentine™ extraction media. The ProRoot® MTA and Biodentine™ extraction medium induced greater cell attachment and spreading. Moreover, the hDPs cultured in the ProRoot® MTA or Biodentine™ extraction medium migrated in a similar manner to those in serum-free medium, while a marked reduction in cell migration was observed in the cells cultured in DyCal® and TheraCal™ LC extraction media. Improved mineralization was detected in hDPs maintained in ProRoot® MTA or Biodentine™ extraction medium compared with those in serum-free medium. Conclusion This study demonstrates the favorable in vitro biocompatibility and bioactive properties of ProRoot® MTA and Biodentine™ on hDPs, suggesting their superior regenerative potential compared with DyCal® and TheraCal™. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01544-w.
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Affiliation(s)
- Chawan Manaspon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.,Biomedical Engineering Institute, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chavin Jongwannasiri
- Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210, Thailand
| | - Sujin Chumprasert
- Oral Biology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Noppadol Sa-Ard-Iam
- Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Rangsini Mahanonda
- Immunology Research Center, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.,Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Prasit Pavasant
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thantrira Porntaveetus
- Genomics and Precision Dentistry Research Unit, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanaphum Osathanon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand. .,Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
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10
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Gomes LM, Moysés DA, Nascimento HFS, Mota TC, Bonfim LT, Cardoso PCS, Burbano RMR, Bahia MO. Genotoxic and cytotoxic effects of the drug dipyrone sodium in African green monkey kidney (Vero) cell line exposed in vitro. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:1529-1535. [DOI: 10.1007/s00210-021-02078-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/08/2021] [Indexed: 12/13/2022]
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11
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Rodríguez-Lozano FJ, López-García S, García-Bernal D, Sanz JL, Lozano A, Pecci-Lloret MP, Melo M, López-Ginés C, Forner L. Cytocompatibility and bioactive properties of the new dual-curing resin-modified calcium silicate-based material for vital pulp therapy. Clin Oral Investig 2021; 25:5009-5024. [PMID: 33638052 DOI: 10.1007/s00784-021-03811-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 01/22/2021] [Indexed: 01/03/2023]
Abstract
OBJECTIVE The aim of the present study was to evaluate the in vitro biocompatibility of Theracal PT, Theracal LC, and MTA Angelus, considered as bioactive materials used for vital pulp treatment, on human dental pulp stem cells (hDPSCs). MATERIALS AND METHODS Human dental pulp stem cells (hDPSCs) were isolated from third molars, and material eluates were prepared (undiluted, 1:2, and 1:4 ratios). The hDPSC cytotoxicity, adhesion, morphology, viability, and cell migration were assessed. The mineralization nodule formation was determined by Alizarin red S staining (ARS). The odonto/osteogenic differentiation potential was assessed by osteo/odontogenic marker expression real-time qPCR. The chemical composition and ion release of the vital pulp materials were determined by energy dispersive X-ray (EDX) and inductively coupled plasma-mass spectrometry (ICP-MS), respectively. Statistical differences were assessed by ANOVA and Tukey's test (p < 0.05). RESULTS The three vital pulp materials showed variable levels of calcium, tungsten, silicon, and zirconium release and in their chemical composition. Cytocompatibility assays revealed higher hDPSC viability and migration rates when treated with Theracal PT than with Theracal LC. The lowest cell adhesion and spreading were observed in all Theracal LC-treated groups, whereas the highest were observed when treated with MTA. Theracal PT and MTA promoted the upregulation of DSPP and RUNX2 gene expression (p < 0.05). After 21 days, both MTA Angelus and Theracal PT-treated cells exhibited a significantly higher mineralized nodule formation than the negative control (p < 0.05). CONCLUSIONS This study demonstrates the favorable in vitro cytocompatibility and bioactive properties of the recently introduced Theracal PT and the well-established MTA Angelus on hDPSCs, as opposed to Theracal LC. More studies, including in vivo animal testing are suggested before these new formulations might be used in the clinical setting. CLINICAL RELEVANCE Theracal PT is a new material that could be clinically suitable for vital pulp therapy. Further studies considering its biocompatibility and bioactivity are necessary.
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Affiliation(s)
- Francisco Javier Rodríguez-Lozano
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute, Virgen de la Arrixaca Clinical University Hospital, IMIB-Arrixaca, University of Murcia, 30120, Murcia, Spain.
- Department of Dermatology, Stomatology, Radiology and Physical Medicine, Morales Meseguer Hospital, Faculty of Medicine, University of Murcia, 30100, Murcia, Spain.
- School of Dentistry, Hospital Morales Meseguer 2 pl., University of Murcia, Av. Marqués de los Vélez, s/n, 30008, Murcia, Spain.
| | - S López-García
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute, Virgen de la Arrixaca Clinical University Hospital, IMIB-Arrixaca, University of Murcia, 30120, Murcia, Spain
- Department of Dermatology, Stomatology, Radiology and Physical Medicine, Morales Meseguer Hospital, Faculty of Medicine, University of Murcia, 30100, Murcia, Spain
| | - D García-Bernal
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute, Virgen de la Arrixaca Clinical University Hospital, IMIB-Arrixaca, University of Murcia, 30120, Murcia, Spain
| | - J L Sanz
- Department of Stomatology, Faculty of Medicine and Dentistry, Universitat de València, 46010, Valencia, Spain
| | - A Lozano
- Department of Stomatology, Faculty of Medicine and Dentistry, Universitat de València, 46010, Valencia, Spain
| | - M P Pecci-Lloret
- Department of Dermatology, Stomatology, Radiology and Physical Medicine, Morales Meseguer Hospital, Faculty of Medicine, University of Murcia, 30100, Murcia, Spain
| | - M Melo
- Department of Stomatology, Faculty of Medicine and Dentistry, Universitat de València, 46010, Valencia, Spain
| | - C López-Ginés
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, 46010, Valencia, Spain
| | - L Forner
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute, Virgen de la Arrixaca Clinical University Hospital, IMIB-Arrixaca, University of Murcia, 30120, Murcia, Spain
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Schweikl H, Birke M, Gallorini M, Petzel C, Bolay C, Waha C, Hiller KA, Buchalla W. HEMA-induced oxidative stress inhibits NF-κB nuclear translocation and TNF release from LTA- and LPS-stimulated immunocompetent cells. Dent Mater 2020; 37:175-190. [PMID: 33303231 DOI: 10.1016/j.dental.2020.10.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/05/2020] [Accepted: 10/31/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The release of inflammatory cytokines from antigen-stimulated cells of the immune system is inhibited by resin monomers such as 2-hydroxyethyl methacrylate (HEMA). Although the formation of oxidative stress in cells exposed to HEMA is firmly established, the mechanism behind the inhibited cytokine secretion is only partly known. The present investigation presents evidence regarding the role of HEMA-induced oxidative stress in the secretion of the pro-inflammatory cytokine TNFα from cells exposed to the antigens LTA (lipoteichoic acid) or LPS (lipopolysaccharide) of cariogenic microorganisms using BSO (L-buthionine sulfoximine) or NAC (N-acetyl cysteine) to inhibit or stabilize the amounts of the antioxidant glutathione. METHOD RAW264.7 mouse macrophages were treated with LTA, LPS or HEMA in the presence of BSO or NAC for 1h or 24h. Secretion of TNFα from cell cultures was analyzed by ELISA, and the formation of reactive oxygen (ROS) or nitrogen species (RNS) was determined by flow cytometry. Protein expression was detected by Western blotting. RESULTS The release of TNFα in both LTA- and LPS-exposed cells was decreased by HEMA, and this concentration-dependent inhibitory effect was amplified by BSO or NAC. LTA- and LPS-stimulated expression of the redox-sensitive transcription factor NF-αB (p65) in cell nuclei decreased in the presence of HEMA because the translocation of p65 from the cytosol was prevented by oxidative stress specifically increased by the monomer. CONCLUSIONS A disturbance of the cellular redox balance, particularly induced by HEMA, is a crucial factor in the inhibition of LTA- and LPS-stimulated signalling pathways leading to TNFα secretion.
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Affiliation(s)
- Helmut Schweikl
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany.
| | - Margaritha Birke
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany
| | - Marialucia Gallorini
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany; Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
| | - Christine Petzel
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany
| | - Carola Bolay
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany
| | - Claudia Waha
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany
| | - Karl-Anton Hiller
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany
| | - Wolfgang Buchalla
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, D-93042 Regensburg, Germany
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Camphorquinone alters the expression of extracellular proteases in a 3D co-culture model of the oral mucosa. Dent Mater 2020; 37:236-248. [PMID: 33257085 DOI: 10.1016/j.dental.2020.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/11/2020] [Accepted: 11/03/2020] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Objective of our investigation was to determine the influence of CQ on the expression of antioxidant proteins and extracellular proteases in a 3D co-culture model (3DCCM) of the oral mucosa and to analyze the distribution and stability of CQ within 3D-CCMs. METHODS 3D-CCMs consist of confluent keratinocytes (OKF6/TERT2) on cell culture inserts on top of human gingival fibroblasts (HGFs) in collagen. The treatment was carried out by adding CQ to the cell culture inserts at two time points with declining concentrations. Mass spectrometry was used to analyze the CQ concentration above and underneath the OKF6/TERT2-layer. The expression of antioxidant genes was analyzed by qRT-PCR and western blot. The regulation of extracellular proteases from different families was analyzed by qRT-PCR and Proteome Profiler arrays. RESULTS GC/MS analysis showed that CQ was evenly distributed within the model. Heme oxygenase-1, NAD(P)H quinone dehydrogenase 1 (NQO1), and superoxide dismutase 1 were induced on the mRNA and protein level in OKF6/TERT2 cells. In HGFs, only the transcription of NQO1 was induced. The transcription of extracellular proteases was increased mainly in OKF6/TERT2 cells 72 h after the initial treatment. The quantity of ten out of 25 analyzed extracellular proteases in the cell culture supernatant above and six underneath the keratinocyte-layer were modulated by CQ. SIGNIFICANCE Despite its high reactivity, CQ is able to penetrate a dense keratinocyte-layer, presumably across plasma membranes. CQ initially induced the cellular defense machinery against oxidative stress and altered the expression of extracellular proteases. We assume a relationship between both processes.
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Taubmann A, Willershausen I, Walter C, Al-Maawi S, Kaina B, Gölz L. Genotoxic and cytotoxic potential of methacrylate-based orthodontic adhesives. Clin Oral Investig 2020; 25:2569-2581. [PMID: 32970196 PMCID: PMC8060203 DOI: 10.1007/s00784-020-03569-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 09/03/2020] [Indexed: 01/01/2023]
Abstract
Objectives The biocompatibility of methacrylate-based adhesives is a topic that is intensively discussed in dentistry. Since only limited evidence concerning the cyto- and genotoxicity of orthodontic adhesives is available, the aim of this study was to measure the genotoxic potential of seven orthodontic methacrylate-based adhesives. Materials and methods The XTT assay was utilized to determine the cytotoxicity of Assure Plus, Assure Bonding Resin, ExciTE F, OptiBond Solo Plus, Scotchbond Universal Adhesive, Transbond MIP, and Transbond XT after an incubation period of 24 h on human gingival fibroblasts. We also performed the γH2AX assay to explore the genotoxic potential of the adhesives within cytotoxic dose ranges after an incubation period of 6 h. Results The XTT assay showed a concentration-dependent reduction in cell viability. The decrease in cellular viability was in the same dose range most significant for Assure Plus, rendering it the adhesive material with the highest cytotoxicity. Employing the γH2AX assay, a concentration-dependent increase in H2AX phosphorylation was detected, indicating induction of DNA damage. Conclusions For most products, a linear correlation between the material concentration and γH2AX foci was observed. The most severe effect on γH2AX focus induction was found for Transbond MIP, which was the only adhesive in the test group containing the co-initiator diphenyliodonium hexafluorophosphate (DPIHP). Clinical relevance The data indicate that orthodontic adhesives, notably Transbond MIP, bear a genotoxic potential. Since the study was performed with in vitro cultivated cells, a direct translation of the findings to in vivo exposure conditions should be considered with great diligence.
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Affiliation(s)
- Andreas Taubmann
- Department of Operative Dentistry, Johannes Gutenberg University Hospital Mainz, Mainz, Germany
| | - Ines Willershausen
- Department of Orthodontics and Orofacial Orthopedics, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany.
| | | | - Sarah Al-Maawi
- Frankfurt Orofacial Regenerative Medicine (FORM) Lab, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Frankfurt/Main, Germany
| | - Bernd Kaina
- Institute of Toxicology, University Medical Center Mainz, Mainz, Germany
| | - Lina Gölz
- Department of Orthodontics and Orofacial Orthopedics, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Bioenergetic Impairment of Triethylene Glycol Dimethacrylate- (TEGDMA-) Treated Dental Pulp Stem Cells (DPSCs) and Isolated Brain Mitochondria are Amended by Redox Compound Methylene Blue †. MATERIALS 2020; 13:ma13163472. [PMID: 32781723 PMCID: PMC7475988 DOI: 10.3390/ma13163472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/27/2020] [Accepted: 08/03/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Triethylene glycol dimethacrylate (TEGDMA) monomers released from resin matrix are toxic to dental pulp cells, induce apoptosis, oxidative stress and decrease viability. Recently, mitochondrial complex I (CI) was identified as a potential target of TEGDMA. In isolated mitochondria supported by CI, substrates oxidation and ATP synthesis were inhibited, reactive oxygen species production was stimulated. Contrary to that, respiratory Complex II was not impaired by TEGDMA. The beneficial effects of electron carrier compound methylene blue (MB) are proven in many disease models where mitochondrial involvement has been detected. In the present study, the bioenergetic effects of MB on TEGDMA-treated isolated mitochondria and on human dental pulp stem cells (DPSC) were analyzed. METHODS Isolated mitochondria and DPSC were acutely exposed to low millimolar concentrations of TEGDMA and 2 μM concentration of MB. Mitochondrial and cellular respiration and glycolytic flux were measured by high resolution respirometry and by Seahorse XF extracellular analyzer. Mitochondrial membrane potential was measured fluorimetrically. RESULTS MB partially restored the mitochondrial oxidation, rescued membrane potential in isolated mitochondria and significantly increased the impaired cellular O2 consumption in the presence of TEGDMA. CONCLUSION MB is able to protect against TEGDMA-induced CI damage, and might provide protective effects in resin monomer exposed cells.
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Wang S, Xiong Y, Lalevée J, Xiao P, Liu J, Xing F. Biocompatibility and cytotoxicity of novel photoinitiator π-conjugated dithienophosphole derivatives and their triggered polymers. Toxicol In Vitro 2020; 63:104720. [DOI: 10.1016/j.tiv.2019.104720] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/07/2019] [Accepted: 11/11/2019] [Indexed: 12/29/2022]
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Evaluation of the protein and bioactive compound bioaccessibility/bioavailability and cytotoxicity of the extracts obtained from aquaculture and fisheries by-products. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 92:97-125. [PMID: 32402448 DOI: 10.1016/bs.afnr.2019.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bioavailability, bioaccessibility, bioactivity and cytotoxicity define if a bioactive compound obtained from aquaculture and associated by-products can be assimilated and used for the body in a safe and efficient way. Four models are used to evaluate the bioavailability: in vitro (simulated gastrointestinal digestion using intestinal epithelial Caco-2 cell cultures); ex vivo (gastrointestinal organs or organoids in laboratory conditions); in situ (intestinal perfusion in animals) and in vivo (animal studies and human studies). In vitro models are very effective, predicting in vivo actions since they evaluate multiple conditions regardless physiological effects. However, in vivo systems are essential for the validation of the results. The use of a combined model between human digestion and cell culture-based models would solve these difficulties, allowing valid conclusions. These studies must be completed with the evaluation of cytotoxicity and oxidative stress markers, providing most accurate results regarding the adverse effect on the body. These methods would test the effect of food structure, food composition, dietary factors and the effect of food processing on bioavailability. Further studies should be carried out to establish a standardized method and achieve a balance between the use of in vivo and in vitro systems.
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Luo S, Yin J, Peng Y, Xie J, Wu H, He D, Li X, Cheng G. Glutathione is Involved in Detoxification of Peroxide and Root Nodule Symbiosis of Mesorhizobium huakuii. Curr Microbiol 2019; 77:1-10. [PMID: 31624868 DOI: 10.1007/s00284-019-01784-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/30/2019] [Indexed: 02/07/2023]
Abstract
Legumes interact with symbiotic rhizobia to produce nitrogen-fixation root nodules under nitrogen-limiting conditions. The contribution of glutathione (GSH) to this symbiosis and anti-oxidative damage was investigated using the M. huakuii gshB (encoding GSH synthetase) mutant. The gshB mutant grew poorly with different monosaccharides, including glucose, sucrose, fructose, maltose, or mannitol, as sole sources of carbon. The antioxidative capacity of gshB mutant was significantly decreased by these treatments with H2O2 under the lower concentrations and cumene hydroperoxide (CUOOH) under the higher concentrations, indicating that GSH plays different roles in response to organic peroxide and inorganic peroxide. The gshB mutant strain displayed no difference in catalase activity, but significantly lower levels of the peroxidase activity and the glutathione reductase activity than the wild type. The same level of catalase activity could be associated with upregulation of the transcriptional activity of the catalase genes under H2O2-induced conditions. The nodules infected by the gshB mutant were severely impaired in abnormal nodules, and showed a nodulation phenotype coupled to a 60% reduction in the nitrogen fixation capacity. A 20-fold decrease in the expression of two nitrogenase genes, nifH and nifD, is observed in the nodules induced by gshB mutant strain. The symbiotic deficiencies were linked to bacteroid early senescence.
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Affiliation(s)
- Sha Luo
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Jie Yin
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Yang Peng
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Jing Xie
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Hetao Wu
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Donglan He
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Xiaohua Li
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Guojun Cheng
- Hubei Provincial Engineering and Technology Research Center for Resources and Utilization of Microbiology, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China.
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Gul P, Karatas O, Alp HH, Cam IB, Ozakar-Ilday N. Monomer release from nanohybrid composites after bleaching. J Oral Sci 2019; 61:351-357. [PMID: 31217386 DOI: 10.2334/josnusd.18-0063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The evaluation of the effect of bleaching on monomer release from two composite resins was performed by bleaching two nanohybrid composite resins Filtek Z550 and Tetric N-Ceram using two bleaching products Whiteness HP Maxx and Vivastyle. In total, 20 samples were made from each composite resin from which four groups were fabricated (two for each bleaching product). The samples were stored in a 75% ethanol solution, and the solutions were renewed after 1, 7, and 28 days. The monomer release was analyzed using high performance liquid chromatography. The data were analyzed using repeated measures analysis of variance and least significant difference multiple comparison test (α = 0.05). Monomers were found to be released from both composite resins. The amounts of monomer released were found to decrease over time (P < 0.05); however, the resins were not affected by bleaching, and the released monomers were well below toxic doses.
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Affiliation(s)
- Pinar Gul
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University
| | - Ozcan Karatas
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University
| | - Hamit H Alp
- Department of Biochemistry, Faculty of Medicine, Yüzüncü Yıl University
| | - Ihsan B Cam
- Akdeniz University, Food Safety and Agricultural Research Center
| | - Nurcan Ozakar-Ilday
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University
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Celik N, Binnetoglu D, Ozakar Ilday N, Hacimuftuoglu A, Seven N. The cytotoxic and oxidative effects of restorative materials in cultured human gingival fibroblasts. Drug Chem Toxicol 2019; 44:502-507. [PMID: 31146597 DOI: 10.1080/01480545.2019.1620265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The aim of this study was to evaluate the cytotoxic and oxidative effects of the most commonly used dental restorative materials on human gingival fibroblast cells (HGFCs). HGFCs were obtained from healthy individuals. The tested restorative materials were a microhybrid resin based composite, a compomer resin, a glass ionomer cement, and an amalgam alloy. One hundred eight cylindirical samples, 10 mm in diameter and 2 mm in height, were prepared according to ISO 10993-12:2002 specifications (n = 9 in the tested subgroups). Freshly prepared and aged samples in artificial saliva at 37 °C (7 and 21 d) were placed into well plates and incubated. Wells without dental materials were constituted as the control group. After 72 h incubation period, cytotoxicity was determined using the neutral red (NR) assay. Oxidative alterations were assessed using total antioxidant capacity (TAC) and total oxidant status (TOS) assay kits. Data were analyzed using the ANOVA and LSD post hoc tests. All tested materials led to significant decreases in the cell viability rates (33-73%) compared to the control group. Glass ionomer and resin composite were found to be more cytotoxic than amalgam alloy and compomer. The highest TAC level was observed in glass ionomer after seven-day aging and these changes prevented an increase in TOS levels. Increases in TAC levels after seven-day aging in all groups exhibited significant differences with freshly prepared samples (p < 0.05). In all material groups, TOS levels of freshly prepared samples differed statistically and significantly from samples aged for 7 and 21 d (p < 0.05). The data obtained suggested that all the tested materials exhibited cytotoxic and pro-oxidant features. Freshly prepared samples caused higher TOS levels. However, oxidant status induced by materials decreased over time.
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Affiliation(s)
- Neslihan Celik
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - Damla Binnetoglu
- Department of Medical Pharmacology, Faculty of Medicine, Kafkas University, Kars, Turkey
| | - Nurcan Ozakar Ilday
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - Ahmet Hacimuftuoglu
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Nilgun Seven
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
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ALAYUNT ÖMERN, AKSOY LAÇINE, KARAFAKIOĞLU YASEMINS, SEVIMLI SEVCAN. Assessment of Anti-inflammatory and Antioxidant Properties of Safranal on CCI4-Induced Oxidative Stress and Inflammation in Rats. ACTA ACUST UNITED AC 2019; 91:e20181235. [DOI: 10.1590/0001-3765201920181235] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/20/2019] [Indexed: 12/25/2022]
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Cytotoxic and genotoxic potential of the type I photoinitiators BAPO and TPO on human oral keratinocytes and V79 fibroblasts. Dent Mater 2018; 34:1783-1796. [PMID: 30340767 DOI: 10.1016/j.dental.2018.09.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Phenylbis(acyl) phosphine oxide (BAPO) and diphenyl(acyl) phosphine oxide (TPO) are alternative photoinitiators to camphorquinone (CQ) in dental resinous materials. Aim of this study was to investigate their cytotoxic/genotoxic potential in human oral keratinocytes (OKF6/Tert2) and Chinese hamster lung fibroblasts (V79) in comparison to CQ. METHODS Cells were exposed to different concentrations of BAPO and TPO (1-50μM). Cytotoxicity was evaluated using H33342 and MTT assay, cell proliferation by BrdU proliferation assay and microscopy. Effects on cellular redox homeostasis were assessed by detecting intracellular levels of reactive oxygen/nitrogen species (ROS/RNS) using the DCFH2 assay and by quantification of mRNA expression of oxidatively regulated, cyto-protective enzymes. Genotoxic potential was determined by use of micronucleus (MN) assay. RESULTS BAPO and TPO induced a concentration-dependent decrease of cell number. BAPO and TPO showed 50- to 250-fold higher cytotoxicity than CQ. In contrast to CQ, both photoinitiators revealed no increase of intracellular ROS/RNS. However, BAPO (10μM) at least significantly induced mRNA-expression of redox-regulated proteins after 24h similar to 2.5mM CQ. Additionally, BAPO significantly raised the number of micronuclei, but only in V79 cells (10μM: 12±1, 2.5mM CQ: 15±1, medium control: 6±3). However, it also significantly decreased proliferation of these cells (10μM BAPO: 19.8%±7.3% compared to controls). SIGNIFICANCE BAPO and TPO revealed concentration-dependent cytotoxic effects in human oral keratinocytes and V79 cells. However, in contrast to CQ, no generation of intracellular ROS/RNS was found. Only BAPO induced genotoxicity in V79 cells.
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Park SY, Ahn CB, Chang KJ, Kim SH, Lee W, Um JH, Han EJ, Jeon YJ, Cheong SH, Ahn G. Hepatoprotective Effects of Xylose-Taurine Reduced Against Hydrogen Peroxide-Induced Oxidative Stress in Cultured Hepatocytes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 1:621-631. [PMID: 28849486 DOI: 10.1007/978-94-024-1079-2_48] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, Xylose-Taurine reduced (X-T-R) was synthesized to enhance biological activities. Hence, we investigated the hepatoprotective effects of X-T-R against H2O2-induced hepatocyte damage and apoptosis. The results showed that X-T-R led to the cytoprotective effect against H2O2-induced oxidative stress in cultured hepatocytes such as the improvement of cell viability and the reduction of reactive oxygen species (ROS) production. Additionally, pre-treatment with X-T-R increased the expression of nuclear factor erythroid 2-related factor 2 (Nrf2), NAD(P)H dehydrogenase:quinone 1 (NQO1) and heme oxygenase 1 (HO-1) in cultured hepatocytes. Furthermore, X-T-R protected the cells against apoptosis via regulating the expression level of Bcl-2/Bax as well as the activation of caspase-3. According to the results obtained, X-T-R may be a bio-material for the therapy of hepatic diseases.
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Affiliation(s)
- Soo Yeon Park
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, South Korea
| | - Chang-Bum Ahn
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, South Korea
- Division of Food and Nutrition, Chonnam National University, Gwang ju, South Korea
| | - Kyung Ja Chang
- Department of Food and Nutrition, Inha University, Incheon, South Korea
| | - Sung Hoon Kim
- Department of Chemistry, Konkuk University, Seoul, South Korea
| | - WonWoo Lee
- Department of Marine Life Science, Jeju National University, Jeju, South Korea
| | - Ju Hyung Um
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, South Korea
| | - Eui Jeong Han
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, South Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju, South Korea
| | - Sun Hee Cheong
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, South Korea.
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, South Korea.
| | - Ginnae Ahn
- Department of Food Technology and Nutrition, Chonnam National University, Yeosu, South Korea.
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, South Korea.
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Graunaite I, Lodiene G, Arandarcikaite O, Pukalskas A, Machiulskiene V. Leachables and cytotoxicity of root canal sealers. J Oral Sci 2018; 60:381-387. [PMID: 30101818 DOI: 10.2334/josnusd.17-0173] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This in vitro study aimed to detect leaching components from an epoxy resin- and a methacrylate-based endodontic sealer and correlate them to cytotoxicity induced by material extracts for up to 36 weeks. We qualitatively determined the substances released by aged AH Plus and RealSeal SE specimens at seven intervals between 0 and 36 weeks. Quantification was performed by ultra-performance liquid chromatography/mass spectrometry (UPLC/MS). We determined the viability of murine macrophage J774 cells after 24 h exposure to material extracts, at each interval, using a fluorescence staining/microscopy method. The leachables detected were 1-adamantylamine and bisphenol A diglycidyl ether from AH Plus and N-(p-tolyl) diethanolamine and caprolactone-2-(methacryloyloxy) ethyl ester from RealSeal SE. The largest UPLC/MS chromatogram peak areas of the leachables were detected within 72 h. Induction of cytotoxicity after exposure to AH Plus and RealSeal SE extracts coincided with leachant detected within the first 72 and 24 h, respectively. The clinical impact of the cytotoxicity due to resin-based endodontic sealers is unknown.
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Affiliation(s)
- Indre Graunaite
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
| | - Greta Lodiene
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
| | - Odeta Arandarcikaite
- Institute of Neurosciences, Laboratory of Biochemistry, Lithuanian University of Health Sciences
| | - Audrius Pukalskas
- Department of Food Science and Technology, Kaunas University of Technologies
| | - Vita Machiulskiene
- Department of Dental and Oral Pathology, Lithuanian University of Health Sciences
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Triethylene glycol dimethacrylate impairs bioenergetic functions and induces oxidative stress in mitochondria via inhibiting respiratory Complex I. Dent Mater 2018; 34:e166-e181. [DOI: 10.1016/j.dental.2018.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 01/22/2018] [Accepted: 03/23/2018] [Indexed: 11/23/2022]
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Putzeys E, Cokic SM, Chong H, Smet M, Vanoirbeek J, Godderis L, Van Meerbeek B, Van Landuyt KL, Duca RC. Simultaneous analysis of bisphenol A based compounds and other monomers leaching from resin-based dental materials by UHPLC-MS/MS. J Sep Sci 2018; 40:1063-1075. [PMID: 28054450 DOI: 10.1002/jssc.201601153] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 12/12/2016] [Accepted: 12/13/2016] [Indexed: 01/03/2023]
Abstract
Resin-based dental materials have raised debates concerning their safety and biocompatibility, resulting in a growing necessity of profound knowledge on the quantity of released compounds into the oral cavity. In this context, the aim of this study was to develop a comprehensive and reliable procedure based on liquid chromatography with mass spectrometry for the simultaneous analysis of various leached compounds (including bisphenol A based compounds) in samples from in vitro experiments. Different experiments were performed to determine the optimal analytical parameters, comprising mass spectrometry parameters, chromatographic separation conditions, and sample preparation. Four internal standards were used as follows: deuterated diethyl phthalate and bisphenol A (commercially available), and deuterated analogues of triethylene glycol dimethacrylate and urethane dimethacrylate (custom-made). The optimized method was validated for linearity of the calibration curves and the associated correlation coefficient, lower limit of quantification, higher limit of quantification, and intra- and interassay accuracy and precision. Additionally, the developed liquid chromatography with tandem mass spectrometry method was applied to the analysis of leaching compounds from four resin-based dental materials. The results indicated that this method is suitable for the analysis of different target compounds leaching from dental materials. This method might serve as a valuable basis for quick and accurate quantification of leached compounds from resin-based dental materials in biological samples.
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Affiliation(s)
- Eveline Putzeys
- BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven, Belgium
| | - Stevan M Cokic
- BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven, Belgium
| | - Hui Chong
- Polymer Chemistry and Materials, Department of Chemistry, KU Leuven (University of Leuven), Leuven, Belgium
| | - Mario Smet
- Polymer Chemistry and Materials, Department of Chemistry, KU Leuven (University of Leuven), Leuven, Belgium
| | - Jeroen Vanoirbeek
- Environment and Health, Department of Public Health and Primary Care, KU Leuven (University of Leuven), Leuven, Belgium
| | - Lode Godderis
- Environment and Health, Department of Public Health and Primary Care, KU Leuven (University of Leuven), Leuven, Belgium.,IDEWE, External Service for Prevention and Protection at Work, Heverlee, Belgium
| | - Bart Van Meerbeek
- BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven, Belgium
| | - Kirsten L Van Landuyt
- BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven, Belgium
| | - Radu Corneliu Duca
- Environment and Health, Department of Public Health and Primary Care, KU Leuven (University of Leuven), Leuven, Belgium
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In-vitro transdentinal diffusion of monomers from adhesives. J Dent 2018; 75:91-97. [PMID: 29864446 DOI: 10.1016/j.jdent.2018.05.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/29/2018] [Accepted: 05/31/2018] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES Biocompatibility of adhesives is important since adhesives may be applied on dentin near the pulp. Accurate knowledge of the quantity of monomers reaching the pulp is important to determine potential side effects. The aim of this study was to assess the transdentinal diffusion of residual monomers from dental adhesive systems using an in-vitro pulp chamber model. METHODS Dentin disks with a thickness of 300 μm were produced from human third molars. These disks were fixed between two open glass tubes, representing an in-vitro pulp chamber. The etch-and-rinse adhesive OptiBond FL and the self-etch adhesive Clearfil SE Bond were applied to the dentin side of the disks, while on in the pulpal side, the glass tube was filled with 600 μl water. The transdentinal diffusion of different monomers was quantified using ultra-performance liquid chromatography-tandem mass spectrometry. RESULTS The monomers HEMA, CQ, BisGMA, GPDM, 10-MDP and UDMA eluted from the dental materials and were able to diffuse through the dentin disks to a certain extent. Compounds with a lower molecular weight (uncured group: HEMA 7850 nmol and CQ 78.2 nmol) were more likely to elute and diffuse compared to monomers with a higher molecular weight (uncured group: BisGMA 0.42 nmol). When the adhesives were left uncured, diffusion was up to 10 times higher compared to the cured conditions. CONCLUSIONS This in-vitro research resulted in the quantification of various monomers able to diffuse through dentin and therefore contributes to a more detailed understanding about the potential exposure of the dental pulp to monomers from dental adhesives. CLINICAL SIGNIFICANCE Biocompatibility of adhesives is important since adhesives may be applied on dentin near the pulp, where tubular density and diameter are greatest.
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Effect of Camphorquinone Concentration in Physical-Mechanical Properties of Experimental Flowable Resin Composites. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7921247. [PMID: 29951545 PMCID: PMC5987321 DOI: 10.1155/2018/7921247] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 04/03/2018] [Accepted: 04/11/2018] [Indexed: 12/15/2022]
Abstract
The aim of this study was to evaluate the effect of camphorquinone concentration in physical-mechanical properties of experimental flowable composites in order to find the concentration that results in maximum conversion, balanced mechanical strength, and minimum shrinkage stress. Model composites based on BISGMA/TEGDMA with 70% wt filler loading were prepared containing different concentrations of camphorquinone (CQ) on resin matrix (0.25%, 0.50%, 1%, 1.50%, and 2% by weight). Degree of conversion was determined by FTIR. Surface hardness was assessed before and after 24 h ethanol storage and softening rate was determined. Depth of cure was determined by Knoop hardness evaluation at different depths. Color was assessed by reflectance spectrophotometer, employing the CIE-Lab system. Flexural strength and elastic modulus were determined by a three-point bending test. Shrinkage stress was determined in a Universal Testing Machine in a high compliance system. Data were submitted to ANOVA and Tukey's test (α = 0.05). The increase in CQ concentration caused a significant increase on flexural strength and luminosity of composites. Surface hardness was not affected by the concentration of CQ. Composite containing 0.25% wt CQ showed lower elastic modulus and shrinkage stress when compared to others. Depth of cure was 3 mm for composite containing 1% CQ and 2 mm for the other tested composites. Degree of conversion was inversely correlated with softening rate and directly correlated with elastic modulus and shrinkage stress. In conclusion, CQ concentration affects polymerization characteristics and mechanical strength of composites. The concentration of CQ in flowable composite for optimized polymerization and properties was 1% wt of the resin matrix, which allows adequate balance among degree of conversion, depth of cure, mechanical properties, and color characteristics of these materials.
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Roh T, De U, Lim SK, Kim MK, Choi SM, Lim DS, Yoon S, Kacew S, Kim HS, Lee BM. Detoxifying effect of pyridoxine on acetaminophen-induced hepatotoxicity via suppressing oxidative stress injury. Food Chem Toxicol 2018; 114:11-22. [DOI: 10.1016/j.fct.2018.02.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 02/01/2018] [Accepted: 02/07/2018] [Indexed: 12/24/2022]
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Volk J, Ziemann C, Leyhausen G, Geurtsen W. Genotoxic and mutagenic potential of camphorquinone in L5178/TK +/- mouse lymphoma cells. Dent Mater 2018; 34:519-530. [PMID: 29373133 DOI: 10.1016/j.dental.2017.12.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/12/2017] [Accepted: 12/21/2017] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Camphorquinone (CQ) is the most important photoinitiator used in dental composite resins. Sparse data indicate a mutagenic potential of CQ. Therefore, it was aim of this study to evaluate the cytotoxicity, genotoxicity, and mutagenicity of CQ in L5178Y TK+/- mouse lymphoma cells. METHODS L5178Y/TK+/- cells were exposed to different concentrations of non-irradiated CQ (0.25-2.5mM). Cytotoxicity was evaluated by propidium iodide assay, determination of suspension growth rate, relative total growth and the mitotic index. Intracellular levels of reactive oxygen/nitrogen species (ROS/RNS) were quantified by 2',7'-dichlorofluoresceine diacetate (DCFH-DA). Early induction of DNA strand breaks and oxidative DNA base lesions was assessed using the 8-hydroxyguanine DNA-glycosylase 1 (hOGG1)-modified alkaline comet assay, whereas mutagenicity of CQ was determined in the mouse lymphoma TK assay (MLA), according to OECD Guideline No. 490. RESULTS CQ (0.5-2.5mM) induced concentration- and time-dependent inhibition of cell growth associated with increased ROS/RNS production, amounting to 2342%±1108% of controls after 90min at 2.5mM. Additionally, CQ concentration-dependently caused direct DNA-damage, i.e. formation of DNA strand breaks and 8-hydroxy-2'-deoxyguanosine. Whereas the MLA indicated lack of mutagenicity of CQ after a 4h of treatment, CQ concentration-dependently increased total mutant frequency (MF) after 24h (about 2-fold at 2.5mM). But, based on the global evaluation factor concept, increase in MF did not reach biologically relevance. SIGNIFICANCE CQ induced concentration-dependent, cytotoxic and genotoxic effects in L5178Y/TK+/- cells, most likely due to oxidative stress, but without mediating obvious biological relevant mutagenicity.
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Affiliation(s)
- J Volk
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, 30625 Hannover, Germany.
| | - C Ziemann
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, 30625 Hannover, Germany
| | - G Leyhausen
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, 30625 Hannover, Germany
| | - W Geurtsen
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, 30625 Hannover, Germany
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D'Alpino PHP, Moura GEDDD, Barbosa SCDA, Marques LDA, Eberlin MN, Nascimento FD, Tersariol ILDS. Differential cytotoxic effects on odontoblastic cells induced by self-adhesive resin cements as a function of the activation protocol. Dent Mater 2017; 33:1402-1415. [DOI: 10.1016/j.dental.2017.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/19/2017] [Accepted: 09/20/2017] [Indexed: 11/15/2022]
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Apoptotic and genotoxic effects of low-intensity ultrasound on healthy and leukemic human peripheral mononuclear blood cells. J Med Ultrason (2001) 2017; 45:31-39. [DOI: 10.1007/s10396-017-0805-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/05/2017] [Indexed: 12/31/2022]
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Wu Y, Zhang D, Wu B, Quan Y, Liu D, Li Y, Zhang X. Synergistic Activity of an Antimetabolite Drug and Tyrosine Kinase Inhibitors against Breast Cancer Cells. Chem Pharm Bull (Tokyo) 2017; 65:768-775. [PMID: 28539531 DOI: 10.1248/cpb.c17-00261] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Antimetabolite drugs, including the adenosine deaminase inhibitor cladribine, have been shown to induce apoptosis in a variety of cancer cells, and have been widely used in clinical trials of various cancers in conjunction with tyrosine kinase inhibitors (TKIs). Combination treatment with cladribine and gefitinib or dasatinib is expected to have a synergistic inhibitory effect on breast cancer cell growth. Our results demonstrated that the combination treatment had synergistic activity against human breast cancer (MCF-7) cells, enhanced G2/M cell arrest and reactive oxygen species (ROS) generation, and increased the loss of mitochondrial membrane potential and cell apoptosis. In addition, the combination treatment decreased Bcl-2 expression. Our results demonstrated that cladribine in combination with gefitinib or dasatinib exerted synergistic anticancer effects on MCF-7 cells by inducing cell cycle arrest, ROS production and apoptosis through the mitochondria-mediated intrinsic pathway.
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Affiliation(s)
- Yushan Wu
- School of Life Sciences, Shandong University of Technology
| | - Dongxing Zhang
- School of Life Sciences, Shandong University of Technology
| | - Baofan Wu
- Medical Department, Heze Municipal Hospital
| | - Yuan Quan
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University
| | - Dongwu Liu
- School of Life Sciences, Shandong University of Technology
| | | | - Xiuzhen Zhang
- School of Life Sciences, Shandong University of Technology
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Cell responses to cariogenic microorganisms and dental resin materials—Crosstalk at the dentin-pulp interface? Dent Mater 2017; 33:514-524. [DOI: 10.1016/j.dental.2017.02.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/13/2017] [Accepted: 02/17/2017] [Indexed: 12/22/2022]
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Ramakrishnan P, Maclean M, MacGregor SJ, Anderson JG, Grant MH. Cytotoxic responses to 405nm light exposure in mammalian and bacterial cells: Involvement of reactive oxygen species. Toxicol In Vitro 2016; 33:54-62. [PMID: 26916085 DOI: 10.1016/j.tiv.2016.02.011] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 02/12/2016] [Accepted: 02/17/2016] [Indexed: 02/07/2023]
Abstract
Light at wavelength 405 nm is an effective bactericide. Previous studies showed that exposing mammalian cells to 405 nm light at 36 J/cm(2) (a bactericidal dose) had no significant effect on normal cell function, although at higher doses (54 J/cm(2)), mammalian cell death became evident. This research demonstrates that mammalian and bacterial cell toxicity induced by 405 nm light exposure is accompanied by reactive oxygen species production, as detected by generation of fluorescence from 6-carboxy-2',7'-dichlorodihydrofluorescein diacetate. As indicators of the resulting oxidative stress in mammalian cells, a decrease in intracellular reduced glutathione content and a corresponding increase in the efflux of oxidised glutathione were observed from 405 nm light treated cells. The mammalian cells were significantly protected from dying at 54 J/cm(2) in the presence of catalase, which detoxifies H2O2. Bacterial cells were significantly protected by sodium pyruvate (H2O2 scavenger) and by a combination of free radical scavengers (sodium pyruvate, dimethyl thiourea (OH scavenger) and catalase) at 162 and 324 J/cm(2). Results therefore suggested that the cytotoxic mechanism of 405 nm light in mammalian cells and bacteria could be oxidative stress involving predominantly H2O2 generation, with other ROS contributing to the damage.
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Affiliation(s)
- Praveen Ramakrishnan
- University of Strathclyde, Department of Biomedical Engineering, Wolfson Centre, 106 Rottenrow, Glasgow, Scotland G4 0NW, United Kingdom
| | - Michelle Maclean
- University of Strathclyde, Department of Biomedical Engineering, Wolfson Centre, 106 Rottenrow, Glasgow, Scotland G4 0NW, United Kingdom; University of Strathclyde, The Robertson Trust Laboratory for Electronic Sterilisation Technologies, 204 George street, Glasgow, Scotland G1 1XW, United Kingdom
| | - Scott J MacGregor
- University of Strathclyde, The Robertson Trust Laboratory for Electronic Sterilisation Technologies, 204 George street, Glasgow, Scotland G1 1XW, United Kingdom
| | - John G Anderson
- University of Strathclyde, The Robertson Trust Laboratory for Electronic Sterilisation Technologies, 204 George street, Glasgow, Scotland G1 1XW, United Kingdom
| | - M Helen Grant
- University of Strathclyde, Department of Biomedical Engineering, Wolfson Centre, 106 Rottenrow, Glasgow, Scotland G4 0NW, United Kingdom.
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Chang MC, Lin LD, Wu MT, Chan CP, Chang HH, Lee MS, Sun TY, Jeng PY, Yeung SY, Lin HJ, Jeng JH. Effects of Camphorquinone on Cytotoxicity, Cell Cycle Regulation and Prostaglandin E2 Production of Dental Pulp Cells: Role of ROS, ATM/Chk2, MEK/ERK and Hemeoxygenase-1. PLoS One 2015; 10:e0143663. [PMID: 26658076 PMCID: PMC4682794 DOI: 10.1371/journal.pone.0143663] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 11/06/2015] [Indexed: 12/13/2022] Open
Abstract
Camphorquinone (CQ) is a popularly-used photosensitizer in composite resin restoration. In this study, the effects of CQ on cytotoxicity and inflammation-related genes and proteins expression of pulp cells were investigated. The role of reactive oxygen species (ROS), ATM/Chk2/p53 and hemeoxygenase-1 (HO-1) and MEK/ERK signaling was also evaluated. We found that ROS and free radicals may play important role in CQ toxicity. CQ (1 and 2 mM) decreased the viability of pulp cells to about 70% and 50% of control, respectively. CQ also induced G2/M cell cycle arrest and apoptosis of pulp cells. The expression of type I collagen, cdc2, cyclin B, and cdc25C was inhibited, while p21, HO-1 and cyclooxygenase-2 (COX-2) were stimulated by CQ. CQ also activated ATM, Chk2, and p53 phosphorylation and GADD45α expression. Besides, exposure to CQ increased cellular ROS level and 8-isoprostane production. CQ also stimulated COX-2 expression and PGE2 production of pulp cells. The reduction of cell viability caused by CQ can be attenuated by N-acetyl-L-cysteine (NAC), catalase and superoxide dismutase (SOD), but can be promoted by Zinc protoporphyin (ZnPP). CQ stimulated ERK1/2 phosphorylation, and U0126 prevented the CQ-induced COX-2 expression and prostaglandin E2 (PGE2) production. These results indicate that CQ may cause cytotoxicity, cell cycle arrest, apoptosis, and PGE2 production of pulp cells. These events could be due to stimulation of ROS and 8-isoprostane production, ATM/Chk2/p53 signaling, HO-1, COX-2 and p21 expression, as well as the inhibition of cdc2, cdc25C and cyclin B1. These results are important for understanding the role of ROS in pathogenesis of pulp necrosis and pulpal inflammation after clinical composite resin filling.
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Affiliation(s)
- Mei-Chi Chang
- Biomedical Science Team, Chang Gung University of Science and Technology, Kwei-Shan, Taoyuan City, Taiwan
| | - Li-Deh Lin
- Laboratory of Dental Pharmacology, Toxicology & Material Biocompatibility, Graduate Institute of Clinical Dentistry, and National Taiwan University Medical College, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Min-Tsz Wu
- Laboratory of Dental Pharmacology, Toxicology & Material Biocompatibility, Graduate Institute of Clinical Dentistry, and National Taiwan University Medical College, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Chiu-Po Chan
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Hsiao-Hua Chang
- Laboratory of Dental Pharmacology, Toxicology & Material Biocompatibility, Graduate Institute of Clinical Dentistry, and National Taiwan University Medical College, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Ming-Shu Lee
- Laboratory of Dental Pharmacology, Toxicology & Material Biocompatibility, Graduate Institute of Clinical Dentistry, and National Taiwan University Medical College, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Tzu-Ying Sun
- Laboratory of Dental Pharmacology, Toxicology & Material Biocompatibility, Graduate Institute of Clinical Dentistry, and National Taiwan University Medical College, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Po-Yuan Jeng
- School of Dentistry, University of Cardenal Herrera, CEU, Valencia, Spain
| | - Sin-Yuet Yeung
- Department of Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Hsueh-Jen Lin
- Department of Dentistry, Show Chwan Memorial Hospital, Chang-Hua, Taiwan
| | - Jiiang-Huei Jeng
- Laboratory of Dental Pharmacology, Toxicology & Material Biocompatibility, Graduate Institute of Clinical Dentistry, and National Taiwan University Medical College, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
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Park SY, Je JY, Ahn CB. Phenolic Composition and Hepatoprotective Activities of A
llium Hookeri
Against Hydrogen-Peroxide-Induced Oxidative Stress in Cultured Hepatocytes. J Food Biochem 2015. [DOI: 10.1111/jfbc.12225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Soo Yeon Park
- Department of Food Technology and Nutrition; Chonnam National University; Yeosu 59626 Korea
| | - Jae-Young Je
- Department of Marine-Bio Convergence Science; Pukyong National University; Busan 48547 Korea
| | - Chang-Bum Ahn
- Department of Food Technology and Nutrition; Chonnam National University; Yeosu 59626 Korea
- Division of Food and Nutrition; Chonnam National University; Gwangju 61186 Korea
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Park SY, Je JY, Hwang JY, Ahn CB. Abalone Protein Hydrolysates: Preparation, Angiotensin I Converting Enzyme Inhibition and Cellular Antioxidant Activity. Prev Nutr Food Sci 2015; 20:176-82. [PMID: 26451354 DOI: 10.3746/pnf.2015.20.3.176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 07/21/2015] [Indexed: 11/06/2022] Open
Abstract
Abalone protein was hydrolyzed by enzymatic hydrolysis and the optimal enzyme/substrate (E/S) ratios were determined. Abalone protein hydrolysates (APH) produced by Protamex at E/S ratio of 1:100 showed angiotensin I converting enzyme inhibitory activity with IC50 of 0.46 mg/mL, and APH obtained by Flavourzyme at E/S ratio of 1:100 possessed the oxygen radical absorbance capacity value of 457.6 μM trolox equivalent/mg sample. Flavourzyme abalone protein hydrolysates (FAPH) also exhibited H2O2 scavenging activity with IC50 of 0.48 mg/mL and Fe(2+) chelating activity with IC50 of 2.26 mg/mL as well as high reducing power. FAPH significantly (P<0.05) protected H2O2-induced hepatic cell damage in cultured hepatocytes, and the cell viability was restored to 90.27% in the presence of FAPH. FAPH exhibited 46.20% intracellular ROS scavenging activity and 57.89% lipid peroxidation inhibition activity in cultured hepatocytes. Overall, APH may be useful as an ingredient for functional foods.
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Affiliation(s)
- Soo Yeon Park
- School of Food Technology and Nutrition, Chonnam National University, Jeonnam 59626, Korea
| | - Jae-Young Je
- Department of Marine-Bio Convergence Science, Pukyong National University, Busan 48513, Korea
| | | | - Chang-Bum Ahn
- School of Food Technology and Nutrition, Chonnam National University, Jeonnam 59626, Korea ; Division of Food and Nutrition, Chonnam National University, Gwangju 61186, Korea
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Wessels M, Rimkus J, Leyhausen G, Volk J, Geurtsen W. Genotoxic effects of camphorquinone and DMT on human oral and intestinal cells. Dent Mater 2015; 31:1159-68. [PMID: 26187530 DOI: 10.1016/j.dental.2015.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 06/08/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Released components of oral biomaterials can leach into the oral cavity and may subsequently reach the gastrointestinal tract. Camphorquinone (CQ) is the most common used photoinitiator in resinous restorative materials and is often combined with the co-initiator N,N-dimethyl-p-toluidine (DMT). It has been shown that CQ exerts cytotoxic effects, at least partially due to the generation of reactive oxygen species (ROS). Objective of this study was to examine the cytotoxic and genotoxic potential of CQ in human oral keratinocytes (OKF6/TERT2) and immortalized epithelial colorectal adenocarcinoma cells (Caco-2). Furthermore, the effects of visible-light irradiation and the co-initiator DMT were investigated as well as the generation of ROS, the potential protective effect of glutathione (GSH) and a recovery period of CQ-treated Caco-2 cells. METHODS The alkaline comet assay was used to determine DNA damage. Additionally, an enzyme modified comet assay was applied, which detects 7,8-dihydro-8-oxoguanine (8-oxoguanine), a reliable marker for oxidative stress. RESULTS Our data revealed that high concentrations of CQ induced DNA lesions in OKF6/TERT2 cells. This DNA damage is at least partly caused by the generation of 8-oxoguanine. In addition, CQ and DMT increased ROS formation and induced DNA damage in Caco-2 cells. CQ-treatment resulted in generation of 8-oxoguanine. The antioxidant GSH efficiently prevented CQ-associated DNA damage. Furthermore, a recovery following CQ-treatment significantly reduced DNA damage. SIGNIFICANCE We conclude that CQ-induced DNA damage is caused by oxidative stress in oral and intestinal cells. These lesions can be prevented and possibly repaired by GSH-treatment and recovery of cells after the photoinitiator is removed from cultures.
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Affiliation(s)
- Miriam Wessels
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
| | - Julia Rimkus
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Gabriele Leyhausen
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Joachim Volk
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Werner Geurtsen
- Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
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Kangsanant S, Thongraung C, Jansakul C, Murkovic M, Seechamnanturakit V. Purification and characterisation of antioxidant and nitric oxide inhibitory peptides from Tilapia (Oreochromis niloticus) protein hydrolysate. Int J Food Sci Technol 2014. [DOI: 10.1111/ijfs.12680] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sureeporn Kangsanant
- Nutraceutical and Functional Food Research and Development Center; Faculty of Agro-Industry; Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
| | - Chakree Thongraung
- Department of Food Technology; Faculty of Agro-Industry; Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
| | - Chaweewan Jansakul
- Department of Thai Medicine; Faculty of Traditional Thai Medicine; Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
| | - Michael Murkovic
- Institute of Biochemistry; Graz University of Technology; Petersgasse 12/2 A-8010 Graz Austria
| | - Vatcharee Seechamnanturakit
- Nutraceutical and Functional Food Research and Development Center; Faculty of Agro-Industry; Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
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Meereis CT, Leal FB, Lima GS, de Carvalho RV, Piva E, Ogliari FA. BAPO as an alternative photoinitiator for the radical polymerization of dental resins. Dent Mater 2014; 30:945-53. [DOI: 10.1016/j.dental.2014.05.020] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 10/30/2013] [Accepted: 05/21/2014] [Indexed: 11/30/2022]
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Tamura A, Fukumoto I, Yui N, Matsumura M, Miura H. Increasing the repeating units of ethylene glycol-based dimethacrylates directed toward reduced oxidative stress and co-stimulatory factors expression in human monocytic cells. J Biomed Mater Res A 2014; 103:1060-6. [DOI: 10.1002/jbm.a.35251] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/15/2014] [Accepted: 06/04/2014] [Indexed: 12/31/2022]
Affiliation(s)
- Atsushi Tamura
- Department of Organic Biomaterials; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University; 2-3-10 Kanda-Surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Izumi Fukumoto
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45 Yushima Bunkyo-ku Tokyo 113-8549 Japan
| | - Nobuhiko Yui
- Department of Organic Biomaterials; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University; 2-3-10 Kanda-Surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Mitsuaki Matsumura
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45 Yushima Bunkyo-ku Tokyo 113-8549 Japan
| | - Hiroyuki Miura
- Fixed Prosthodontics, Department of Restorative Sciences, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; 1-5-45 Yushima Bunkyo-ku Tokyo 113-8549 Japan
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Maiwulanjiang M, Chen J, Xin G, Gong AGW, Miernisha A, Du CYQ, Lau KM, Lee PSC, Chen J, Dong TTX, Aisa HA, Tsim KWK. The volatile oil of Nardostachyos Radix et Rhizoma inhibits the oxidative stress-induced cell injury via reactive oxygen species scavenging and Akt activation in H9c2 cardiomyocyte. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:491-498. [PMID: 24632018 DOI: 10.1016/j.jep.2014.03.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/03/2014] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nardostachyos Radix et Rhizoma (NRR; the root and rhizome of Nardostachys jatamansi DC.) is a well-known medicinal herb widely used in Chinese, Uyghur and Ayurvedic medicines for the treatment of cardiovascular disorders. The oxidative stress-induced cardiomyocyte loss is the major pathogenesis of heart disorders. Here, the total volatile oil of NRR was isolated, and its function in preventing the cell death of cardiomyocyte was demonstrated. MATERIALS AND METHODS The cyto-protective effect of volatile oil of NRR against tBHP-induced H9c2 cardiomyocyte injury was measured by MTT assay. A promoter-report construct (pARE-Luc) containing four repeats of antioxidant response element (ARE) was applied to study the transcriptional activation of ARE. The amounts of phase ΙΙ antioxidant enzymes were analyzed by quantitative real-time polymer chain reaction (qPCR) upon the volatile oil treatment at 30 μg/mL for 24 h. The activation of Akt pathway was analyzed by western blot. RESULTS In cultured H9c2 cardiomyocytes, application of NRR volatile oil exhibited strong potency in preventing tBHP-induced cell death and accumulation of intracellular reactive oxygen species (ROS) in a concentration-dependent manner. In addition, the application of NRR volatile oil in cultures stimulated the gene expressions of self-defense antioxidant enzymes, which was mediated by the transcriptional activation of antioxidant response element (ARE). The induced genes were glutathione S-transferase, NAD(P)H quinone oxidoreductase, glutamate-cysteine ligase catalytic and modulatory subunits. In addition, the volatile oil of NRR activated the phosphorylation of Akt in cultured H9c2 cells. The treatment of LY294002, an Akt inhibitor, significantly inhibited the volatile oil-mediated ARE transcriptional activity, as well as the cell protective effect of NRR oil. CONCLUSION These results demonstrated that NRR volatile oil prevented the oxidative stress-induced cell death in H9c2 cells by (i) reducing intracellular ROS production, (ii) inducing antioxidant enzymes and (iii) activating Akt phosphorylation.
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Affiliation(s)
- Maitinuer Maiwulanjiang
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Jianping Chen
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Guizhong Xin
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Amy G W Gong
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Abudureyimu Miernisha
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Crystal Y Q Du
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Kei M Lau
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Pinky S C Lee
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Jihang Chen
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Tina T X Dong
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Haji A Aisa
- Xinjiang Key Laboratory of Plant Resources and Natural Products Chemistry, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Karl W K Tsim
- Division of Life Science and Centre for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China.
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Kangsanant S, Murkovic M, Thongraung C. Antioxidant and nitric oxide inhibitory activities of tilapia (Oreochromis niloticus) protein hydrolysate: effect of ultrasonic pretreatment and ultrasonic-assisted enzymatic hydrolysis. Int J Food Sci Technol 2014. [DOI: 10.1111/ijfs.12551] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Sureeporn Kangsanant
- Nutraceutical and Functional Food Research and Development Center; Faculty of Agro-Industry; Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
| | - Michael Murkovic
- Institute of Biochemistry; Graz University of Technology; Petersgasse 12/2 A-8010 Graz Austria
| | - Chakree Thongraung
- Department of Food Technology; Faculty of Agro-Industry; Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
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Volk J, Leyhausen G, Wessels M, Geurtsen W. Reduced glutathione prevents camphorquinone-induced apoptosis in human oral keratinocytes. Dent Mater 2014; 30:215-26. [DOI: 10.1016/j.dental.2013.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 08/22/2013] [Accepted: 11/20/2013] [Indexed: 12/13/2022]
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Oxidative stress is responsible for genotoxicity of camphorquinone in primary human gingival fibroblasts. Clin Oral Investig 2014; 18:1705-10. [DOI: 10.1007/s00784-013-1178-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 12/26/2013] [Indexed: 10/25/2022]
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Cho YS, Lee DS, Kim YM, Ahn CB, Kim DH, Jung WK, Je JY. Protection of hepatic cell damage and antimicrobial evaluation of chitosan-catechin conjugate. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s13765-013-3168-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pramanik A, Laha D, Pramanik P, Karmakar P. A novel drug "copper acetylacetonate" loaded in folic acid-tagged chitosan nanoparticle for efficient cancer cell targeting. J Drug Target 2013; 22:23-33. [PMID: 23987131 DOI: 10.3109/1061186x.2013.832768] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Several copper compounds have proven anti-cancer activity. Similarly, curcumin a derivative of 1,3 diketone, which is not plenty in nature, has comparable anti-cancer activity. In this work, we have explored the synergistic anti-cancer activity of copper ion and acetylacetone complex containing 1,3 diketone group. The cytotoxicity of the copper acetylacetonate (CuAA) complex was evaluated on various cancer cells and LD50 doses were determined. To investigate the mechanism, various biochemical assays were performed and reactive oxygen species as well as the glutathione level in the cell were found to be increased after the treatment with the above-mentioned complex. Further this reagent induced apoptosis and reduced mitochondrial membrane potential of the cells. Because of the poor solubility and reasonable cytotoxicity of CuAA, polymer nanoparticles (NPs) of chitosan derivatives were used for delivery in cancer cells. For the targeted delivery, folic acid-tagged hydrophobic-modified chitosan NPs were developed and the CuAA was encapsulated. Finally, these drug-encapsulated NPs were successfully delivered to folate receptor over-expressed cancer cells. Thus using nanotechnology, we developed an anti-cancer agent suitable for targeted delivery.
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Affiliation(s)
- Arindam Pramanik
- Department of Life Science and Biotechnology, Jadavpur University , Kolkata, West Bengal , India and
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Choi S, Kim JA, Na HY, Kim JE, Park S, Han KH, Kim YJ, Suh SH. NADPH oxidase 2-derived superoxide downregulates endothelial KCa3.1 in preeclampsia. Free Radic Biol Med 2013; 57:10-21. [PMID: 23261940 DOI: 10.1016/j.freeradbiomed.2012.12.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 10/24/2012] [Accepted: 12/09/2012] [Indexed: 01/18/2023]
Abstract
Endothelial dysfunction is associated with KCa3.1 dysfunction and contributes to the development of hypertension in preeclampsia. However, evidence of endothelial KCa3.1 dysfunction in the vascular system from women with preeclampsia is still lacking. Therefore, we examined whether endothelial KCa3.1 dysfunction occurs in vessels from women with preeclampsia. We compared KCa3.1 and NADPH oxidase (NOX) expression in umbilical vessels and primary cultured human umbilical vein endothelial cells (HUVECs) from normal (NP; n=17) and preeclamptic pregnancy (PE; n=19) and examined the effects of plasma from NP or PE on KCa3.1 and NOX2 expression in primary cultured HUVECs from NP or human uterine microvascular endothelial cells. The endothelial KCa3.1 was downregulated, and NOX2 was upregulated, in umbilical vessels and HUVECs from PE, compared with those from NP. In addition, HUVECs from PE showed a significant decrease in KCa3.1 current. Plasma from PE induced KCa3.1 down regulation, NOX2 upregulation, phosphorylated-p38 mitogen-activated protein kinase downregulation, and superoxide generation, and these effects were prevented by antioxidants (tempol or tiron), NOX2 inhibition, or anti-lectin-like oxidized low-density lipoprotein (LDL) receptor 1 (LOX1) antibody. Oxidized LDL and the superoxide donor xanthine/xanthine oxidase mixture induced KCa3.1 downregulation. In contrast, plasma from PE did not generate hydrogen peroxide, and the hydrogen peroxide donor tert-butylhydroperoxide induced KCa3.1 upregulation. These results provide the first evidence that plasma from PE generates superoxide via a LOX1-NOX2-mediated pathway and downregulates endothelial KCa3.1, which may contribute to endothelial dysfunction and vasculopathy in preeclampsia. This suggests KCa3.1as a novel target for patients with preeclampsia.
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Affiliation(s)
- Shinkyu Choi
- Department of Physiology Medical School, Ewha Womans University, Seoul 158-710, Republic of Korea
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Antioxidant and anti-inflammatory peptide fraction from salmon byproduct protein hydrolysates by peptic hydrolysis. Food Res Int 2012. [DOI: 10.1016/j.foodres.2012.08.002] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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