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Czarnowski M, Słowińska M, Sawieljew M, Wnorowska U, Daniluk T, Król G, Karasiński M, Okła S, Savage PB, Piktel E, Bucki R. Efficacy of Ceragenins in Controlling the Growth of Oral Microorganisms: Implications for Oral Hygiene Management. Pharmaceuticals (Basel) 2024; 17:204. [PMID: 38399419 PMCID: PMC10893225 DOI: 10.3390/ph17020204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Ensuring proper dental hygiene is of paramount importance for individuals' general well-being, particularly for patients receiving medical care. There is a prevailing utilization of conventional oral hygiene items, including toothbrushes and mouthwashes, which have gained widespread acceptance; nevertheless, their limitations encourage investigating novel options in this domain. Our study indicates that ceragenins (CSAs) being lipid analogs of host defense peptides, well-recognized for their wide-ranging antimicrobial properties, may be a potentially efficacious means to augment oral hygiene in hospitalized individuals. We demonstrate that ceragenins CSA-13, CSA-44, and CSA-131 as well as undescribed to date CSA-255 display potent antimicrobial activities against isolates of fungi, aerobic, and anaerobic bacteria from Candida, Streptococcus, Enterococcus, and Bacteroides species, which are well-recognized representatives of microbes found in the oral cavity. These effects were further confirmed against mono- and dual-species fungal and bacterial biofilms. While the ceragenins showed similar or slightly diminished efficacy compared to commercially available mouthwashes, they demonstrated a highly favorable toxicity profile toward host cells, that may translate into better maintenance of host mucosal membrane stability. This suggests that incorporating ceragenins into oral hygiene products could be a valuable strategy for reducing the risk of both oral cavity-localized and secondary systemic infections and for improving the overall health outcomes of individuals receiving medical treatment.
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Affiliation(s)
- Michał Czarnowski
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
| | - Monika Słowińska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
| | - Mariusz Sawieljew
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
| | - Urszula Wnorowska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
| | - Tamara Daniluk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
| | - Grzegorz Król
- Institute of Medical Science, Collegium Medicum, Jan Kochanowski University of Kielce, 25-317 Kielce, Poland; (G.K.); (S.O.)
| | - Maciej Karasiński
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
| | - Sławomir Okła
- Institute of Medical Science, Collegium Medicum, Jan Kochanowski University of Kielce, 25-317 Kielce, Poland; (G.K.); (S.O.)
- Holy Cross Cancer Center, 25-734 Kielce, Poland
| | - Paul B. Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA;
| | - Ewelina Piktel
- Independent Laboratory of Nanomedicine, Medical University of Białystok, 15-222 Białystok, Poland;
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, 15-222 Białystok, Poland; (M.C.); (M.S.); (M.S.); (U.W.); (T.D.); (M.K.)
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Jowkar Z, Moaddeli A, Shafiei F, Tadayon T, Hamidi SA. Synthesis and characterization of mesoporous zinc oxide nanoparticles and evaluation of their biocompatibility in L929 fibroblasts. Clin Exp Dent Res 2024; 10:e844. [PMID: 38345519 PMCID: PMC10828904 DOI: 10.1002/cre2.844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 02/15/2024] Open
Abstract
OBJECTIVES This study aimed to synthesize and characterize mesoporous zinc oxide nanoparticles (ZnO NPs) and also to evaluate the cytotoxicity of mesoporous ZnO NPs on L929 mouse fibroblast cell lines using 3-(4,5- dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. MATERIALS AND METHODS The synthesized mesoporous ZnO NPs were extensively characterized using X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) analysis, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectra (EDAX), Fourier-transform infrared spectroscopy (FTIR), and dynamic light scattering (DLS). The cytotoxicity of mesoporous ZnO NPs was assessed by MTT assay. The study groups for cytotoxicity assay were normal saline, 0.1% calcined mesoporous ZnO NP solution, 1% calcined mesoporous ZnO NP solution, 0.1% noncalcined mesoporous ZnO NP solution, 1% noncalcined mesoporous ZnO NP solution, 0.1% ZnO NP solution, 1% ZnO NP solution, 2% chlorhexidine, and phosphate-buffered saline (PBS). The percentages of mean ± standard deviation of viable cells were analyzed. RESULTS Characterization of mesoporous ZnO NPs revealed that all the particles were in a more or less spherical shape with a wide particle size distribution of 70-100 nm. TEM image showed the uniformed and aggregated ZnO NPs with a typical size of 10-15 nm. BET analysis showed a mesoporous structure for the prepared mesoporous ZnO NPs. According to the MTT assay, chlorhexidine had the lowest cell viability percentage. Cell viability percentages of 0.1% mesoporous ZnO NP solutions (calcined and noncalcined) were statistically, significantly higher than 0.1% ZnO NP solution (p < .05). Cell viability percentages of 0.1% calcined and noncalcined mesoporous ZnO NP solutions and 0.1% ZnO NP solution were statistically, significantly higher than the 1% solutions (p < .05). CONCLUSION Mesoporous ZnO NPs exhibited less cytotoxicity against L929 mouse fibroblast cell lines compared to CHX and ZnO NPs, hence are safe to use.
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Affiliation(s)
- Zahra Jowkar
- Oral and Dental Disease Research Center, Department of Operative Dentistry, School of DentistryShiraz University of Medical SciencesShirazIran
| | - Ali Moaddeli
- Legal Medicine Research CenterLegal Medicine OrganizationTehranIran
| | - Fereshteh Shafiei
- Oral and Dental Disease Research Center, Department of Operative Dentistry, School of DentistryShiraz University of Medical SciencesShirazIran
| | - Tara Tadayon
- Department of Operative Dentistry, School of DentistryShiraz University of Medical SciencesShirazIran
| | - Seyed Ahmadreza Hamidi
- Department of Operative Dentistry, School of DentistryShiraz University of Medical SciencesShirazIran
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Seshadri VRA, Varghese NS, Gurunathan D. Evaluation of the Cytocompatibility of Fluoride Varnish and Its Effect on Human Gingival Fibroblasts (hGFs): An In Vitro Study. Cureus 2023; 15:e41735. [PMID: 37575824 PMCID: PMC10415168 DOI: 10.7759/cureus.41735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 07/11/2023] [Indexed: 08/15/2023] Open
Abstract
Introduction Untreated dental decay poses a significant oral health challenge, leading to pain, tooth loss, and infections. Fluoride varnishes are in prolonged contact with the tooth surface and this prevents dental decay. However, limited research has been conducted regarding the cytotoxicity and cytocompatibility of varnishes on oral cells. Recent studies have shed light on the cytotoxic effect of these varnishes on human fibroblast cells. Material and Methods The fibroblasts were isolated and cultured in 0.00001, 0.0001, 0.001, 0.01, 0.1, and 1 % fluoride concentration The cells were incubated for 72 hours at a temperature of 37°C and cell viability after the application of varnish was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide (MTT) assay. Results This study observed that fluoride varnish had a concentration dependant cytotoxic effect on human gingival fibroblasts (hGFs). As the concentration of fluoride increased, the cell viability decreased. At 1% concentration, there was maximum cell cytotoxicity. At the lowest concentration (0.00001), more than 78% of the cells were found to be viable. Conclusion Further research is necessary to develop safer and more biocompatible fluoride varnish formulations to ensure their efficacy in preventing dental caries without causing harm to oral tissues.
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Affiliation(s)
- V Ranjith Akshay Seshadri
- Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Nikitha S Varghese
- Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
| | - Deepa Gurunathan
- Pediatric and Preventive Dentistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, IND
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Cytotoxicity and Wound Closure Evaluation in Skin Cell Lines after Treatment with Common Antiseptics for Clinical Use. Cells 2022; 11:cells11091395. [PMID: 35563705 PMCID: PMC9099882 DOI: 10.3390/cells11091395] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/07/2022] [Accepted: 04/18/2022] [Indexed: 02/06/2023] Open
Abstract
In recent years, new therapies, such as skin cell lines injections, have emerged to promote re-epithelialization of damaged areas such as chronic ulcers or to treat patients with severe burns. Antiseptics are commonly used during wound clinical management to avoid serious infections, but they may delay the healing process due to their apparent cytotoxicity to skin cells. The cytotoxicity of ethanol, chlorhexidine digluconate, sodium hypochlorite, povidone iodine and polyhexanide was evaluated in this in vitro study on human fibroblasts and keratinocytes. Treatments were applied to each cell type culture every 48 h for 14 days. To determine the cytotoxic of antiseptics, cell viability (Live/Dead®) and cell proliferation (AlamarBlue™) assays were performed on cell monolayers. Cell migration capacity was evaluated with a wound closure assay. Results showed how chlorhexidine digluconate and ethanol significantly reduced the viability of keratinocytes and inhibited cell migration. Povidone iodine followed by chlorhexidine digluconate significantly reduced fibroblast cell viability. Povidone iodine also inhibited cell migration. Sodium hypochlorite was the least detrimental to both cell types. If epithelial integrity is affected, the wound healing process may be altered, so the information gathered in this study may be useful in selecting the least aggressive antiseptic after treatment with new emerging therapies.
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Millones-Gómez PA, De la Garza-Ramos MA, Urrutia-Baca VH, Hernandez-Martinez HC, Hernández Marín DA, Minchón Medina CA. Cytotoxicity of Peruvian propolis and Psidium guajava on human gingival fibroblasts, PBMCs and HeLa cells. F1000Res 2022; 11:430. [PMID: 36051851 PMCID: PMC9386296 DOI: 10.12688/f1000research.110352.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/12/2022] [Indexed: 11/20/2022] Open
Abstract
It is indisputable that every day it is demonstrated that natural products present diverse therapeutic benefits, which has boosted their incorporation within various products for clinical use. However, this must be accompanied by knowledge of their effect on cell lines to ensure their use is safe. The objective of this study was to evaluate the cytotoxic effect of two ethanolic extracts based on Peruvian natural products, on three human cell lines. Cervical cancer cell lines (HeLa), human gingival fibroblasts (HGF-1 - ATCC CRL-2014) (HGF-1) and peripheral blood mononuclear cells (PBMCs) were cultured and subsequently treated with preparations of ethanolic extracts of propolis (EEP) and Psidium guajava (EEG) from a concentration of 50 mg/mL to 0.024 mg/mL, by the 3-(4,5- dimethylthiazol-2-yl)-2,5-diphenyltetrazole bromide reduction assay. At a concentration of 0.24 mg/mL EEG, viability of 99.7±1.24%, 99.8±2.2% and 99.7±2.7% was observed in HeLa, HGF-1 and PBMCs, respectively; >90% cell viability values were observed with EPP at 0.024 mg/mL, with HGF-1 showing the highest viability (96.9±1.15%). A dose-dependent effect was observed for both extracts with a decrease in cell viability as concentrations increased (up to 50 mg/mL). EEP and EEG extracts at low concentrations do not show cytotoxicity in human cell lines, these findings are an advance in the preclinical evaluation on their safety and open a continuity to further studies for their potential applications in dentistry and medicine.
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Affiliation(s)
| | | | - Victor Hugo Urrutia-Baca
- Facultad de Ciencias Biológicas, Laboratorio de Inmunología y Virología/ CIDICS/UOIE, Universidad Autónoma de Nuevo León, Monterrey, 64000, Mexico
| | - Humberto Carlos Hernandez-Martinez
- Facultad de Ciencias Biológicas, Laboratorio de Inmunología y Virología/ CIDICS/UOIE, Universidad Autónoma de Nuevo León, Monterrey, 64000, Mexico
| | - David Alejandro Hernández Marín
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, 20100, Mexico
| | - Carlos Alberto Minchón Medina
- Department of Statistics, Faculty of Physical Sciences and Mathematics, Universidad Nacional de Trujillo, Trujillo, 13001, Peru
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Millones-Gómez PA, De la Garza-Ramos MA, Urrutia-Baca VH, Hernandez-Martinez HC, Hernández Marín DA, Minchón Medina CA. Cytotoxicity of Peruvian propolis and Psidium guajava on human gingival fibroblasts, PBMCs and HeLa cells. F1000Res 2022; 11:430. [PMID: 36051851 PMCID: PMC9386296 DOI: 10.12688/f1000research.110352.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/15/2022] [Indexed: 11/03/2023] Open
Abstract
It is indisputable that every day it is demonstrated that natural products present diverse therapeutic benefits, which has boosted their incorporation within various products for clinical use. However, this must be accompanied by knowledge of their effect on cell lines to ensure their use is safe. The objective of this study was to evaluate the cytotoxic effect of two ethanolic extracts based on Peruvian natural products, on three human cell lines. Cervical cancer cell lines (HeLa), human gingival fibroblasts (HGF-1 - ATCC CRL-2014) (HGF-1) and peripheral blood mononuclear cells (PBMCs) were cultured and subsequently treated with preparations of ethanolic extracts of propolis (EEP) and Psidium guajava (EEG) from a concentration of 50 mg/mL to 0.024 mg/mL, by the 3-(4,5- dimethylthiazol-2-yl)-2,5-diphenyltetrazole bromide reduction assay. At a concentration of 0.24 mg/mL EEG, viability of 99.7±1.24%, 99.8±2.2% and 99.7±2.7% was observed in HeLa, HGF-1 and PBMCs, respectively; >90% cell viability values were observed with EPP at 0.024 mg/mL, with HGF-1 showing the highest viability (96.9±1.15%). A dose-dependent effect was observed for both extracts with a decrease in cell viability as concentrations increased (up to 50 mg/mL). EEP and EEG extracts at low concentrations do not show cytotoxicity in human cell lines, these findings are an advance in the preclinical evaluation on their safety and open a continuity to further studies for their potential applications in dentistry and medicine.
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Affiliation(s)
| | | | - Victor Hugo Urrutia-Baca
- Facultad de Ciencias Biológicas, Laboratorio de Inmunología y Virología/ CIDICS/UOIE, Universidad Autónoma de Nuevo León, Monterrey, 64000, Mexico
| | - Humberto Carlos Hernandez-Martinez
- Facultad de Ciencias Biológicas, Laboratorio de Inmunología y Virología/ CIDICS/UOIE, Universidad Autónoma de Nuevo León, Monterrey, 64000, Mexico
| | - David Alejandro Hernández Marín
- Departamento de Microbiología, Centro de Ciencias Básicas, Universidad Autónoma de Aguascalientes, Aguascalientes, 20100, Mexico
| | - Carlos Alberto Minchón Medina
- Department of Statistics, Faculty of Physical Sciences and Mathematics, Universidad Nacional de Trujillo, Trujillo, 13001, Peru
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Cai X, Wang X. Chlorhexidine-loaded poly (amido amine) dendrimer and a dental adhesive containing amorphous calcium phosphate nanofillers for enhancing bonding durability. Dent Mater 2022; 38:824-834. [PMID: 35450701 DOI: 10.1016/j.dental.2022.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/24/2022] [Accepted: 04/01/2022] [Indexed: 02/06/2023]
Abstract
OBJECTIVE A novel method of combining chlorhexidine (CHX) loaded poly (amido amine) (PAMAM) dendrimers with a dental adhesive containing amorphous calcium phosphate (ACP) nanofillers are proposed for etch-and-rinse bonding system to enhance resin-dentin bonding durability. METHODS The CHX-loaded PAMAM and ACP nanofillers were synthesized and characterized. Their effects on the cytotoxicity were tested by MTT assay. Micro-tensile bond strength (μTBS) before and after thermomechanical challenges were used to evaluate the bonding durability. Anti-matrix metalloproteinase (MMPs) property was examined using in-situ zymography. A double-fluorescence technique was used to examine interfacial permeability after bonding. Dentin remineralization in Ca/P lacking solution was observed under scanning electron microscopy. RESULTS Compared with a 0.2 wt% CHX solution, the PAMAM loaded CHX had less cytotoxicity, while the in situ zymography showed it could still inhibit MMPs activity within the hybrid layer after released from PAMAM. The application of the novel method maintained the μTBS better than the control group after thermomechanical challenges, and it did not negatively affect water permeability of the bonding interfaces. CHX-loaded PAMAM regulated the calcium (Ca) and phosphate (P) ions provided by the ACP-containing adhesives to remineralize the demineralized dentin surfaces without initial Ca/P in the environment. SIGNIFICANCE The novel method can reduce the cytotoxicity of CHX, inhibit MMPs activities, maintain μTBS, and induce dentin remineralization, which are crucial factors for enhancing bonding durability.
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Affiliation(s)
- Xue Cai
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Xiaoyan Wang
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing 100081, China.
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Harnessing the Antibacterial Properties of Fluoridated Chitosan Polymers against Oral Biofilms. Pharmaceutics 2022; 14:pharmaceutics14030488. [PMID: 35335865 PMCID: PMC8951426 DOI: 10.3390/pharmaceutics14030488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 02/07/2023] Open
Abstract
Dental caries are a worldwide endemic chronic disease affecting people of all ages. Due to the limitations of daily used oral hygiene products, there is an unmet need for new, effective, safe, and economic oral products. We have recently demonstrated that N-(2(2,6-diaminohexanamide)-chitosan (CS3H Lys) has enhanced antibacterial properties against Streptococcus mutans, the main cariogenic bacterium, and here we investigated the effect of fluoridation of this polymer (CS3H Lys F) on its antibacterial properties and the ability to protect teeth from acid demineralization. We further formulated this polymer into mouthwash preparations and studied their cytocompatibility and physicochemical stability over 6 months. CS3H Lys F was 1.6-fold more effective than the highest tested oral NaF dose in preventing acid demineralization. CS3H Lys F has a 3- to 5-fold lower minimum inhibitory concentration value against S. mutants than the values reported for chitosan polymers and showed negligible cell toxicity. The mouthwashes were stable at both 25 and 40 °C. Further work is under way towards other CS3H Lys F oral hygiene products such as a toothpaste.
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Millones Gómez PA, Tay Chu Jon LY, Maurtua Torres DJ, Bacilio Amaranto RE, Collantes Díaz IE, Minchón Medina CA, Calla Choque JS. Antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an in vitro oral biofilm. F1000Res 2022; 10:1093. [PMID: 34853678 PMCID: PMC8613507 DOI: 10.12688/f1000research.73602.2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/13/2021] [Indexed: 12/27/2022] Open
Abstract
Background: Natural products with antibacterial potential have begun to be tested on biofilm models, bringing us closer to understanding the response generated by the complex microbial ecosystems of the oral cavity. The objective of this study was to evaluate the antibacterial, antibiofilm, and cytotoxic activities and chemical compositions of Peruvian propolis in an
in vitro biofilm of
Streptococcus gordonii and
Fusobacterium nucleatum. Methods: The experimental work involved a consecutive,
in vitro, longitudinal, and double-blinded study design. Propolis samples were collected from 13 different regions of the Peruvian Andes. The disk diffusion method was used for the antimicrobial susceptibility test. The cytotoxic effect of propolis on human gingival fibroblasts was determined by cell viability method using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay, and the effect of propolis on the biofilm was evaluated by confocal microscopy and polymerase chain reaction (PCR). Results: The 0.78 mg/mL and 1.563 mg/mL concentrations of the methanolic fraction of the chloroform residue of Oxapampa propolis showed effects on biofilm thickness and the copy numbers of the
srtA gene of
S. gordonii and the
radD gene of
F. nucleatum at 48 and 120 hours, and chromatography (UV, λ 280 nm) identified rhamnocitrin, isorhamnetin, apigenin, kaempferol, diosmetin, acacetin, glycerol, and chrysoeriol. Conclusions: Of the 13 propolis evaluated, it was found that only the methanolic fraction of Oxapampa propolis showed antibacterial and antibiofilm effects without causing damage to human gingival fibroblasts. Likewise, when evaluating the chemical composition of this fraction, eight flavonoids were identified.
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Affiliation(s)
- Pablo Alejandro Millones Gómez
- Facultad de Medicina, Universidad Señor de Sipán, Chiclayo, 14000, Peru.,Faculty of Dentistry, Universidad Peruana Cayetano Heredia, Lima, 07001, Peru
| | | | | | | | | | - Carlos Alberto Minchón Medina
- Department of Statistics, Faculty of Physical Sciences and Mathematics, Universidad Nacional de Trujillo, Trujillo, 13001, Peru
| | - Jaeson Santos Calla Choque
- Department of Pediatrics, School of Medicine, University of California San Diego (UCSD), La Jolla, CA, 92093, USA
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Sakko M, Rautemaa-Richardson R, Sakko S, Richardson M, Sorsa T. Antibacterial Activity of 2-Hydroxyisocaproic Acid (HICA) Against Obligate Anaerobic Bacterial Species Associated With Periodontal Disease. Microbiol Insights 2021; 14:11786361211050086. [PMID: 34707364 PMCID: PMC8543563 DOI: 10.1177/11786361211050086] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 09/10/2021] [Indexed: 11/15/2022] Open
Abstract
Topical antiseptics are used to assist and further increase the effect of mechanical biofilm eradication and to potentially prevent new biofilm formation in periodontal treatment. This is of importance in treatment-resistant infections with 10% prevalence of all periodontitis cases to avoid the need for antibiotic therapy. The purpose of this study was to evaluate the antimicrobial activity of DL-2-hydroxyisocaproic acid on human pathogenic obligate anaerobic bacteria related to periodontitis. In this study antimicrobial activity of 2-hydroxyisocaproic acid was observed against 14 bacterial reference strains and clinical isolates of obligate anaerobic bacterial species using a microdilution method in 1.25 to 160 mg/mL concentrations of 2-hydroxyisocaproic acid. The 11 strains of bacteria included in this study are typically associated with periodontal disease; Porphyromonas gingivalis, Fusobacterium nucleatum, Tannerella forsythia, Aggregatibacter actinomycetemcomitans, and Parvimonas micra. Three strains of Cutibacterium acnes, normally associated with skin diseases, were tested for comparison. 90% inhibitory concentration was determined at 48 hours and minimum bactericidal concentration was determined after 72 hours incubation. The 2-hydroxyisocaproic acid was bactericidal at ⩾160 mg/mL for all isolates tested. The reference strain of T. forsythia, and the reference strain and the clinical isolates of C. acnes were the most tolerant ones. The reference strains and clinical isolates of F. nucleatum and A. actinomycetemcomitans were killed at ⩾40 mg/mL concentration. In conclusion, topical use of 2-hydroxyisocaproic acid could eventually be a well-tolerated and useful method in the therapy of patients with difficult-to-treat periodontal disease or other superficial infections to avoid unnecessary antibiotic use and the emergence of antibiotic resistance.
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Affiliation(s)
- Marjut Sakko
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Hospital, Helsinki, Finland
| | - Riina Rautemaa-Richardson
- Division of Infection, Inflammation and Respiratory Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.,Department of Infectious Diseases, Manchester Academic Health Science Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Samuli Sakko
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Hospital, Helsinki, Finland
| | - Malcolm Richardson
- Mycology Reference Centre Manchester, ECMM Excellence Centre of Medical Mycology, Manchester University NHS Foundation Trust, Manchester, UK.,Manchester Fungal Infection Group, Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK
| | - Timo Sorsa
- Department of Oral and Maxillofacial Diseases, Clinicum, University of Helsinki, and Helsinki University Hospital, Helsinki, Finland.,Department of Oral Diseases, Karolinska Institutet, Huddinge, Sweden
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Investigating the Antioxidant and Cytocompatibility of Mimusops elengi Linn Extract over Human Gingival Fibroblast Cells. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18137162. [PMID: 34281099 PMCID: PMC8297240 DOI: 10.3390/ijerph18137162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/21/2021] [Accepted: 06/29/2021] [Indexed: 11/16/2022]
Abstract
Background-chlorhexidine (CHX) is most commonly used as a chemical plaque control agent. Nevertheless, its adverse effects, including teeth discoloration, taste alteration and calculus build-up, limit its use and divert us to medicinal herbs. The purpose of the study was to evaluate the phytochemical composition, antioxidant potential, and cytotoxic effects of Mimusops elengi Linn extract (ME) over normal human cultured adult gingival fibroblasts (HGFs). Methods-in vitro phytochemical screening, total flavonoid content, antioxidant potential by DPPH and Nitric Oxide (NO) radical scavenging activity, and cytotoxic effects of ME extracts over HGF were explored. The viability of HGF cells was determined using 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT), neutral red uptake, and trypan blue assay after treatment with different concentrations of CHX and ME (0.3125 to 10 µg/mL). Results-ME showed some alkaloids, glycosides, saponins and flavonoids exhibited relatively moderate-to-good antioxidant potential. Increasing the concentration of CHX and ME from 0.3125 to 10 µg/mL reduced cell viability from 29.71% to 1.07% and 96.12% to 56.02%, respectively. At higher concentrations, CHX reduced the viability of cells by 52.36-fold compared to ME, revealed by MTT assay. At 10 µg/mL concentration, the mean cell viability of CHX and ME-treated cells was 2.24% and 57.45%, respectively, revealed by a neutral red assay. The viability of CHX- and ME-treated HGF cells estimated at higher concentrations (10 µg/mL) using trypan blue assay was found to be 2.18% and 47.36%, respectively. A paired t-test showed significance (p < 0.05), and one-way ANOVA difference between the mean cell viability of CHX- and ME-treated cells at different concentrations. One-way ANOVA confirmed the significant difference between the viability of CHX- and ME-treated cells. Conclusions-The cytoprotective and antioxidant effects of ME emphasize its potential benefits. Therefore, it could emerge as a herbal alternative and adjunct to conventional oral hygiene methods, that can diminish periodontal tissue destruction.
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López-García S, Pecci-Lloret MP, Pecci-Lloret MR, Guerrero-Gironés J, Rodríguez-Lozano FJ, García-Bernal D. Topical fluoride varnishes promote several biological responses on human gingival cells. Ann Anat 2021; 237:151723. [PMID: 33857632 DOI: 10.1016/j.aanat.2021.151723] [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: 01/29/2021] [Revised: 03/14/2021] [Accepted: 03/14/2021] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To compare the in vitro cytotoxicity of four commercial topical fluoride varnishes widely used in daily dental practice for the prevention of caries on human fibroblasts: Cervitec F, Fixofluor, Fluor Protector S and Duraphat. MATERIAL AND METHODS Human gingival fibroblasts (hGF) were exposed to different concentrations of fluoride varnishes extracts. Biological assays, including MTT and IC50 value determination, annexin-V/7-AAD staining, cell migration and F-actin staining with phalloidin were carried out. Statistical analyses were performed using one-way ANOVA and Tukey's post hoc test. RESULTS At 4% concentration, all of the fluoride varnishes extracts affected fibroblasts metabolic activity, exhibiting a high degree of cytotoxicity at all measured time points. At 0.1% and 1%, Duraphat and Fixofluor or Fluor Protector S and Cervitec F exerted the lowest or highest cytotoxic effects, respectively. Similar effects were evidenced when induction of apoptosis/necrosis and cell migration assays were analyzed. Immunocytochemical assays revealed a similar number of fibroblasts, without changes in the morphology and F-actin content at 0.1% concentration of all tested materials, while at 1% concentration, Fluor Protector S and Cervitec F showed few cells with aberrant morphology or non-adhered cells, respectively. CONCLUSIONS Different commercial topical fluoride varnishes with the same therapeutic indication may exhibit different biological effects and cytotoxicity on fibroblasts.
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Affiliation(s)
- Sergio López-García
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute of Murcia, Clinical University Hospital Virgen de la Arrixaca, University of Murcia, 30120 Murcia, Spain
| | - María P Pecci-Lloret
- Gerodontology and Special Care Dentistry Unit, Hospital Morales Meseguer, Medicine School, University of Murcia, 30100 Murcia, Spain
| | - Miguel R Pecci-Lloret
- Gerodontology and Special Care Dentistry Unit, Hospital Morales Meseguer, Medicine School, University of Murcia, 30100 Murcia, Spain
| | - Julia Guerrero-Gironés
- Gerodontology and Special Care Dentistry Unit, Hospital Morales Meseguer, Medicine School, University of Murcia, 30100 Murcia, Spain.
| | - Francisco J Rodríguez-Lozano
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute of Murcia, Clinical University Hospital Virgen de la Arrixaca, University of Murcia, 30120 Murcia, Spain; Gerodontology and Special Care Dentistry Unit, Hospital Morales Meseguer, Medicine School, University of Murcia, 30100 Murcia, Spain
| | - David García-Bernal
- Cellular Therapy and Hematopoietic Transplant Research Group, Biomedical Research Institute of Murcia, Clinical University Hospital Virgen de la Arrixaca, University of Murcia, 30120 Murcia, Spain; Internal Medicine Department, Medicine School, University of Murcia, 30100 Murcia, Spain
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The Effect of Antimicrobial Photodynamic Therapy Using Chlorophyllin–Phycocyanin Mixture on Enterococcus faecalis: The Influence of Different Light Sources. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10124290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The purpose of this study was to evaluate the in vitro effect of the chlorophyllin–phycocyanin mixture (Photoactive+) as a photosensitizer (PS) during antimicrobial photodynamic therapy (aPDT) on the count of Enterococcus faecalis (E. faecalis) using different light sources. The antimicrobial effect of aPDT with chlorophyllin–phycocyanin mixture using different light sources including diode laser (λ = 660 nm), diode laser (λ = 635 nm), LED (λ = 450 ± 30 nm) alone or in combination was assessed using microbial cell viability assay against E. faecalis. In addition, the cell cytotoxicity of Photoactive+ was assessed on human gingival fibroblast (HuGu) cells by MTT assay; E. faecalis growth when treated by both red wavelengths (635 nm, 660 nm) and combination of LED (420–480 nm) and red wavelengths (635 nm, 660 nm), significantly reduced compared to the control group (p < 0.05). There was no significant reduction in the number of viable cells exposed to Photoactive+ compared to the control group (p < 0.05). This study shows that the application of chlorophyllin–phycocyanin mixture and irradiation with emission of red light achieved a better result for bacterial count reduction, compared to a control. This component can be applied safely due to very negligible cytotoxicity.
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Song IS, Lee JE, Park JB. The Effects of Various Mouthwashes on Osteoblast Precursor Cells. Open Life Sci 2019; 14:376-383. [PMID: 33817172 PMCID: PMC7874790 DOI: 10.1515/biol-2019-0042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/10/2019] [Indexed: 02/06/2023] Open
Abstract
This study examined whether or not various mouthwashes have significant effects on the viability or morphology of mouse osteoblast-like cells. Mouse calvarial preosteoblast cells were cultured and prepared, then treated with a 0.12% chlorhexidine digluconate solution containing essential oils with or without alcohol, and a cetylpyridinium chloride solution, and sodium fluoride, respectively. Each well was treated with one of six mouthwashes for either 30 sec, 1.5 min, or 4.5 min. The viability of the treated cells was quantitatively analyzed by a Cell Counting Kit-8. The viability of osteogenic progenitor cells decreased significantly irrespectively of the types of mouthwashes. The changes of cell morphology were seen in all groups of mouthwashes; however, they were more noticeable on the chlorhexidine digluconate-treated group. A progressive increase in treatment time over 30 sec did not seem to deteriorate cellular viability. There was no significant difference in viability or morphological change between different formulations of the same brand. Although various mouthwashes without alcohol as an ingredient are available, nonalcoholic mouthwashes were not likely to be less harmful to the cells. Collectively, commercially available mouthwashes could inhibit cell viability and alter the morphology of osteoblastic precursor cells irrespectively of brands, treatment time, or alcohol content.
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Affiliation(s)
- In-Seok Song
- Department of Oral and Maxillofacial Surgery, Korea University Anam Hospital, Seoul, 02841, Republic of Korea
| | - Ji Eun Lee
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Jun-Beom Park
- Department of Periodontics, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
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