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García-Arévalo F, Leija-Montoya AG, González-Ramírez J, Isiordia-Espinoza M, Serafín-Higuera I, Fuchen-Ramos DM, Vazquez-Jimenez JG, Serafín-Higuera N. Modulation of myeloid-derived suppressor cell functions by oral inflammatory diseases and important oral pathogens. Front Immunol 2024; 15:1349067. [PMID: 38495880 PMCID: PMC10940359 DOI: 10.3389/fimmu.2024.1349067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/21/2024] [Indexed: 03/19/2024] Open
Abstract
The oral cavity presents a diverse microbiota in a dynamic balance with the host. Disruption of the microbial community can promote dysregulation of local immune response which could generate oral diseases. Additionally, alterations in host immune system can result in inflammatory disorders. Different microorganisms have been associated with establishment and progression of the oral diseases. Oral cavity pathogens/diseases can modulate components of the inflammatory response. Myeloid-derived suppressor cells (MDSCs) own immunoregulatory functions and have been involved in different inflammatory conditions such as infectious processes, autoimmune diseases, and cancer. The aim of this review is to provide a comprehensive overview of generation, phenotypes, and biological functions of the MDSCs in oral inflammatory diseases. Also, it is addressed the biological aspects of MDSCs in presence of major oral pathogens. MDSCs have been mainly analyzed in periodontal disease and Sjögren's syndrome and could be involved in the outcome of these diseases. Studies including the participation of MDSCs in other important oral diseases are very scarce. Major oral bacterial and fungal pathogens can modulate expansion, subpopulations, recruitment, metabolism, immunosuppressive activity and osteoclastogenic potential of MDSCs. Moreover, MDSC plasticity is exhibited in presence of oral inflammatory diseases/oral pathogens and appears to be relevant in the disease progression and potentially useful in the searching of possible treatments. Further analyses of MDSCs in oral cavity context could allow to understand the contribution of these cells in the fine-tuned balance between host immune system and microorganism of the oral biofilm, as well as their involvement in the development of oral diseases when this balance is altered.
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Affiliation(s)
- Fernando García-Arévalo
- Laboratorio de Biología Celular, Centro de Ciencias de la Salud Mexicali, Facultad de Odontología Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
| | | | - Javier González-Ramírez
- Laboratorio de Biología Molecular, Centro de Ciencias de la Salud Mexicali, Facultad de Enfermería Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
| | - Mario Isiordia-Espinoza
- Instituto de Investigación en Ciencias Médicas, Departamento de Clínicas, División de Ciencias Biomédicas, Centro Universitario de los Altos, Universidad de Guadalajara, Tepatitlán de Morelos, Jal, Mexico
| | - Idanya Serafín-Higuera
- Laboratorio de Microbiología, Facultad de Medicina, Universidad Autónoma de Baja California, Tijuana, BC, Mexico
| | - Dulce Martha Fuchen-Ramos
- Laboratorio de Biología Celular, Centro de Ciencias de la Salud Mexicali, Facultad de Odontología Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
| | | | - Nicolas Serafín-Higuera
- Laboratorio de Biología Celular, Centro de Ciencias de la Salud Mexicali, Facultad de Odontología Mexicali, Universidad Autónoma de Baja California, Mexicali, BC, Mexico
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Khaliullina A, Kolesnikova A, Khairullina L, Morgatskaya O, Shakirova D, Patov S, Nekrasova P, Bogachev M, Kurkin V, Trizna E, Kayumov A. The Antimicrobial Potential of the Hop ( Humulus lupulus L.) Extract against Staphylococcus aureus and Oral Streptococci. Pharmaceuticals (Basel) 2024; 17:162. [PMID: 38399377 PMCID: PMC10893079 DOI: 10.3390/ph17020162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/18/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Plant extracts are in the focus of the pharmaceutical industry as potential antimicrobials for oral care due to their high antimicrobial activity coupled with low production costs and safety for eukaryotic cells. Here, we show that the extract from Hop (Humulus lupulus L.) exhibits antimicrobial activity against Staphylococcus aureus and Streptococci in both planktonic and biofilm-embedded forms. An extract was prepared by acetone extraction from hop infructescences, followed by purification and solubilization of the remaining fraction in ethanol. The effect of the extract on S. aureus (MSSA and MRSA) was comparable with the reference antibiotics (amikacin, ciprofloxacin, and ceftriaxone) and did not depend on the bacterial resistance to methicillin. The extract also demonstrated synergy with amikacin on six S. aureus clinical isolates, on four of six isolates with ciprofloxacin, and on three of six isolates with ceftriaxone. On various Streptococci, while demonstrating lower antimicrobial activity, an extract exhibited a considerable synergistic effect in combination with two of three of these antibiotics, decreasing their MIC up to 512-fold. Moreover, the extract was able to penetrate S. aureus and S. mutans biofilms, leading to almost complete bacterial death within them. The thin-layer chromatography and LC-MS of the extract revealed the presence of prenylated flavonoids (2',4',6',4-tetrahydroxy-3'-geranylchalcone) and acylphloroglucides (cohumulone, colupulone, humulone, and lupulone), apparently responsible for the observed antimicrobial activity and ability to increase the efficiency of antibiotics. Taken together, these data suggest an extract from H. lupulus as a promising antimicrobial agent for use both as a solely antiseptic and to potentiate conventional antimicrobials.
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Affiliation(s)
- Alyona Khaliullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Alyona Kolesnikova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Leysan Khairullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Olga Morgatskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Dilyara Shakirova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Sergey Patov
- Institute of Chemistry, FRC “Komi Scientific Centre”, Ural Branch of the Russian Academy of Sciences, 167000 Syktyvkar, Russia; (S.P.); (P.N.)
| | - Polina Nekrasova
- Institute of Chemistry, FRC “Komi Scientific Centre”, Ural Branch of the Russian Academy of Sciences, 167000 Syktyvkar, Russia; (S.P.); (P.N.)
| | - Mikhail Bogachev
- Biomedical Engineering Research Centre, St. Petersburg Electrotechnical University, 5 Professor Popov Street, 197022 St. Petersburg, Russia;
| | - Vladimir Kurkin
- Institute of Pharmacy, Samara State Medical University, 443079 Samara, Russia;
| | - Elena Trizna
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Airat Kayumov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
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Shakthi A, Linoj J, Suresh V, Hussein MA, Selvamani M. Evaluation of Antibacterial and Anti-oxidant Activities of Suaeda monoica Extract for Its Potential Application. Cureus 2024; 16:e53091. [PMID: 38414694 PMCID: PMC10897944 DOI: 10.7759/cureus.53091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/28/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND An assessment of Suaeda monoica extract's antimicrobial and antioxidant properties was undertaken in light of its possible application as an oral care product. The maintenance of optimal dental health is just as important as overall wellness. Food particles become trapped in the mouth cavity, making it easy for oral bacteria to infect. AIM The study sought to ascertain the antibacterial and antioxidant properties of salt marsh Suaeda monoica extract. MATERIALS AND METHODS Leaves of Suaeda monoica, collected, dried and powdered, were dissolved in 70% methanol and the extract of 25-100 μg/ml was analyzed for antioxidant activity through total antioxidant assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, and total reducing power. Suaeda monoica antibacterial activity was also performed and the minimum inhibitory concentration was determined for 75 μg/ml, 100μg/ml, and 150 μg/ml concentrations and tetracycline in 10mcg/disc as a control against three different oral pathogens: Staphylococcus mutans, Streptococcus aureus, and Klebsiella spp. RESULTS At varying concentrations of 75 mg/ml to 150 mg/ml, Suaeda monoica extracts are efficacious with varying concentrations against the investigated bacterial strains. In the present study, in the DPPH assay, total reducing power, and total antioxidant activity assay, there was an increase in inhibitory percentage as the concentration increased from 25-100 µg/ml, showing maximum inhibition at 100 µg/ml concentration. CONCLUSION The results of the investigation show that Suaeda monoica has significant antibacterial and antioxidant activity in a concentration-dependent manner and can be potentially used as an oral care agent after it is assessed for clinical use.
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Affiliation(s)
- Akitha Shakthi
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Joseph Linoj
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Vasugi Suresh
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Mohammed Asif Hussein
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Muthamizh Selvamani
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Honap TP, Monroe CR, Johnson SJ, Jacobson DK, Abin CA, Austin RM, Sandberg P, Levine M, Sankaranarayanan K, Lewis CM. Oral metagenomes from Native American Ancestors reveal distinct microbial lineages in the pre-contact era. Am J Biol Anthropol 2023; 182:542-556. [PMID: 37002784 DOI: 10.1002/ajpa.24735] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 03/08/2023] [Accepted: 03/14/2023] [Indexed: 06/19/2023]
Abstract
OBJECTIVES Limited studies have focused on how European contact and colonialism impacted Native American oral microbiomes, specifically, the diversity of commensal or opportunistically pathogenic oral microbes, which may be associated with oral diseases. Here, we studied the oral microbiomes of pre-contact Wichita Ancestors, in partnership with the Descendant community, The Wichita and Affiliated Tribes, Oklahoma, USA. MATERIALS AND METHODS Skeletal remains of 28 Wichita Ancestors from 20 archeological sites (dating approximately to 1250-1450 CE) were paleopathologically assessed for presence of dental calculus and oral disease. DNA was extracted from calculus, and partial uracil deglycosylase-treated double-stranded DNA libraries were shotgun-sequenced using Illumina technology. DNA preservation was assessed, the microbial community was taxonomically profiled, and phylogenomic analyzes were conducted. RESULTS Paleopathological analysis revealed signs of oral diseases such as caries and periodontitis. Calculus samples from 26 Ancestors yielded oral microbiomes with minimal extraneous contamination. Anaerolineaceae bacterium oral taxon 439 was found to be the most abundant bacterial species. Several Ancestors showed high abundance of bacteria typically associated with periodontitis such as Tannerella forsythia and Treponema denticola. Phylogenomic analyzes of Anaerolineaceae bacterium oral taxon 439 and T. forsythia revealed biogeographic structuring; strains present in the Wichita Ancestors clustered with strains from other pre-contact Native Americans and were distinct from European and/or post-contact American strains. DISCUSSION We present the largest oral metagenome dataset from a pre-contact Native American population and demonstrate the presence of distinct lineages of oral microbes specific to the pre-contact Americas.
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Affiliation(s)
- Tanvi P Honap
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
| | - Cara R Monroe
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
- Center for the Ethics of Indigenous Genomics Research (CEIGR), University of Oklahoma, 73072, Norman, Oklahoma, USA
| | - Sarah J Johnson
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
| | - David K Jacobson
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
| | - Christopher A Abin
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
| | - Rita M Austin
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
| | - Paul Sandberg
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
- Sam Noble Oklahoma Museum of Natural History, University of Oklahoma, 73072, Norman, Oklahoma, USA
| | - Marc Levine
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
- Sam Noble Oklahoma Museum of Natural History, University of Oklahoma, 73072, Norman, Oklahoma, USA
| | - Krithivasan Sankaranarayanan
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Microbiology and Plant Biology, University of Oklahoma, 73019, Norman, Oklahoma, USA
| | - Cecil M Lewis
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, 73072, Norman, Oklahoma, USA
- Department of Anthropology, University of Oklahoma, 73019, Norman, Oklahoma, USA
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Boia ER, Huț AR, Roi A, Luca RE, Munteanu IR, Roi CI, Riviș M, Boia S, Duse AO, Vulcănescu DD, Horhat FG. Associated Bacterial Coinfections in COVID-19-Positive Patients. Medicina (Kaunas) 2023; 59:1858. [PMID: 37893576 PMCID: PMC10607966 DOI: 10.3390/medicina59101858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/22/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: The aim of this study was to identify specific rhino- and oropharyngeal microbiological pathogens as well as associated comorbidities that favor SARS-CoV-2 infection and corelate them. Materials and Methods: This prospective clinical study enrolled 61 patients (28 COVID-19-positive and 33 controls) who were tested for other comorbidities and co-existence of associated oral pathogenic microbiota. Results: A total of 247 bacterial isolates were identified in the bacterial cultures in both groups. Viral hepatitis type A was more prevalent in the COVID-19-positive group (p = 0.026), as was the presence of oral candidiasis (p = 0.006). In the control group, a moderate direct relationship was observed between the Beta hemolytic streptococcus group G and dermatitis, and strong direct relationships were observed between the Beta hemolytic streptococcus group G and external otitis, Streptococcus pyogenes and dental alveolitis, and Streptococcus pyogenes and chronic lymphocytic leukemia. In the test group, strong direct relationships were observed between Hemophilus influenzae and pulmonary thromboembolism; Staphylococcus aureus and autoimmune thyroiditis; post-viral immunosuppression, chronic coronary syndrome, and hypernatremia; Beta hemolytic streptococcus group C and rheumatoid polyneuropathy; Beta hemolytic streptococcus group G and hyperkalemia, hypothyroidism, secondary anemia, and splenomegaly; and active oral candidiasis and SARS-CoV-2 viral pneumonia. The following relationships were strong, but inverse: Beta hemolytic streptococcus group G and acute respiratory failure, and active oral candidiasis and SARS-CoV-2 viral bronchopneumonia. Conclusions: Briefly, COVID-19-positive patients have the predisposition to build up associated comorbidities and coinfections, which can be the expression of the immune burden that this virus generates to the host.
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Affiliation(s)
- Eugen Radu Boia
- Department of Ear, Nose and Throat, Faculty of Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania;
| | - Alexandru Romulus Huț
- PhD Researcher, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania;
| | - Alexandra Roi
- Department of Oral Pathology, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania;
| | - Ruxandra Elena Luca
- Department of Oral Rehabilitation and Dental Emergencies, Faculty of Dental Medicine, The Interdisciplinary Center for Dental Medical Research, Lasers and Innovative Technologies, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (R.E.L.); (I.R.M.)
| | - Ioana Roxana Munteanu
- Department of Oral Rehabilitation and Dental Emergencies, Faculty of Dental Medicine, The Interdisciplinary Center for Dental Medical Research, Lasers and Innovative Technologies, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (R.E.L.); (I.R.M.)
| | - Ciprian Ioan Roi
- Department of Anesthesiology and Oral Surgery, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (C.I.R.); (M.R.)
| | - Mircea Riviș
- Department of Anesthesiology and Oral Surgery, Faculty of Dental Medicine, Multidisciplinary Center for Research, Evaluation, Diagnosis and Therapies in Oral Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (C.I.R.); (M.R.)
| | - Simina Boia
- Department of Periodontology, Faculty of Dental Medicine, Anton Sculean Research Center for Periodontal and Peri-Implant Diseases, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Adina Octavia Duse
- Department of Physical Medicine, Balneology and Rheumatology, Faculty of Medicine, Center for the Evaluation of Movement, Functionality and Disability, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania;
| | - Dan Dumitru Vulcănescu
- Department of Microbiology, Faculty of Medicine, Multidiciplinary Research Center on Antimicrobial Resistance (MULTI-REZ), “Victor Babeș” University of Medicine and Pharmacy Timișoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (D.D.V.); (F.G.H.)
| | - Florin George Horhat
- Department of Microbiology, Faculty of Medicine, Multidiciplinary Research Center on Antimicrobial Resistance (MULTI-REZ), “Victor Babeș” University of Medicine and Pharmacy Timișoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (D.D.V.); (F.G.H.)
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Yun SE, Choi BBR, Nam SH, Kim GC. Antimicrobial Effects of Edible Mixed Herbal Extracts on Oral Microorganisms: An In Vitro Study. Medicina (Kaunas) 2023; 59:1771. [PMID: 37893489 PMCID: PMC10608150 DOI: 10.3390/medicina59101771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: The oral cavity is inhabited by pathogenic bacteria, whose growth can be inhibited by synthetic oral drugs, including antibiotics and other chemical compounds. Natural antimicrobial substances that elicit fewer negative side effects may serve as alternatives to synthetic agents for long-term use. Thus, the aim of this study was to evaluate the effects of edible mixed herbal extracts on the growth of oral pathogenic bacteria. Materials and Methods: The yield of each herbal extract was as follows: 5% Schizonepeta tenuifolia Briq (STB), 10.94% Mentha piperascens (MP), 5.47% Acanthopanax sessiliflorus Seem (AS), and 10.66% Glycyrrhiza uralensis (GU). The herbal extracts used included 0.5 mg/mL STB, 1.5 mg/mL MP, 1.5 mg/mL AS, and 2.0 mg/mL GU. Antimicrobial tests, morphological analyses (using scanning electron microscopy), microbial surface hydrophobicity measurements, and oral malodor reduction tests were performed using each extract. Statistical analyses were performed with IBM® SPSS® (version 24), using paired t-tests. Results: The mixed herbal extracts significantly inhibited the growth of Streptococcus mutans, Enterococcus faecalis, Candida albicans, and Porphyromonas gingivalis compared to the control (p < 0.001). Scanning electron microscopy results further revealed altered cellular morphology in the groups treated with the mixed herbal extracts. Additionally, the hydrophobicity assay results showed that the mixed herbal extracts reduced the oral adhesion capacities of bacteria (p < 0.001). Administration of the mixed herbal extracts also reduced the levels of volatile sulfur compounds, the main contributors to oral malodor (p < 0.001). Conclusions: Edible mixed herbal extracts can effectively eliminate oral pathogens and may be useful for improving oral health. The herbal extracts used were effective against all species of oral pathogens studied in this report.
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Affiliation(s)
- Se-Eun Yun
- Corporate Affiliated Research Institute, Feagle Co., Ltd., Yangsan 50561, Republic of Korea; (S.-E.Y.); (B.-B.r.C.)
| | - Byul-Bo ra Choi
- Corporate Affiliated Research Institute, Feagle Co., Ltd., Yangsan 50561, Republic of Korea; (S.-E.Y.); (B.-B.r.C.)
| | - Seoul-Hee Nam
- Department of Dental Hygiene, Kangwon National University, Samcheok 25949, Republic of Korea;
| | - Gyoo-Cheon Kim
- Department of Oral Anatomy, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
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I ST, Pitchiah S, Suresh V, Ramasamy P. Synthesis of Zinc Oxide Nanoparticles From Aqueous Extract of Avicennia marina Mangrove Leaves and Their Antibacterial Activities Against Oral Pathogens. Cureus 2023; 15:e47627. [PMID: 38022281 PMCID: PMC10667946 DOI: 10.7759/cureus.47627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The field of nanotechnology is currently being extensively researched. Nanoparticles (NPs) are used in many fields, such as engineering and medicine, owing to their nanoscale dimensions. Zinc (Zn) appears to be the most desirable metal NP, as it is being applied in various drug delivery systems and other fields. The green synthesis of the NPs used in this study makes it affordable and nonpolluting. Avicennia marina leaves possess antimicrobial properties and a high secondary metabolite content. This study aimed to synthesize ZnO NPs from the aqueous extracts of A. marina mangrove leaves and assess their antibacterial activities against oral pathogens. Methodology The leaves of A. marina were dried to obtain a preprocessed powder, and from that, an aqueous extract was prepared. ZnO NPs were then synthesized by adding the aqueous extract to 100 mL of ZnS solution and mixing it in an orbital shaker. They were observed both visually and by ultraviolet (UV) spectrophotometry to confirm their synthesis. The antibacterial properties of these ZnO NPs were assayed using the disc diffusion method on three different oral bacterial strains (Streptococcus mutans, Staphylococcus aureus, and Klebsiella sp.). Results For the synthesis process, it was seen that zinc oxide (ZnO) NPs exhibited a deepening in coloration. Additionally, the UV spectrum analysis revealed a notable absorbance value of 1.2 at a wavelength of 320 nm. The antibacterial efficacy against S. mutans, S. aureus, and Klebsiella sp. was assessed by measuring the zone of inhibition in diameter. At a dosage of 100 µg/mL of ZnO NPs, the inhibition zones were found to be 7.5 ± 0.2, 9.5 ± 0.5, and 9.5 ± 1.2 mm for S. mutans, S. aureus, and Klebsiella sp., respectively. Similarly, at a concentration of 75 µg/mL, the inhibition zones were measured to be 7 ± 0.25, 9 ± 1, and 7.5 ± 0.5 mm for the respective bacterial strains. Conclusions This study synthesizes ZnO NPs using A. marina leaf aqueous extract in a sustainable and eco-friendly manner. The ZnO NPs' antibacterial activities against oral infections indicate their use in dental products. These NPs have promising potential for nanomedicine and oral health studies due to their antibacterial properties and ecologically sustainable manufacturing.
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Affiliation(s)
- Shabnam Tamanna I
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Sivaperumal Pitchiah
- Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Vasugi Suresh
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Pasiyappazham Ramasamy
- Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Sans-Serramitjana E, Obreque M, Muñoz F, Zaror C, Mora MDLL, Viñas M, Betancourt P. Antimicrobial Activity of Selenium Nanoparticles (SeNPs) against Potentially Pathogenic Oral Microorganisms: A Scoping Review. Pharmaceutics 2023; 15:2253. [PMID: 37765222 PMCID: PMC10537110 DOI: 10.3390/pharmaceutics15092253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023] Open
Abstract
Biofilms are responsible for the most prevalent oral infections such as caries, periodontal disease, and pulp and periapical lesions, which affect the quality of life of people. Antibiotics have been widely used to treat these conditions as therapeutic and prophylactic compounds. However, due to the emergence of microbial resistance to antibiotics, there is an urgent need to develop and evaluate new antimicrobial agents. This scoping review offers an extensive and detailed synthesis of the potential role of selenium nanoparticles (SeNPs) in combating oral pathogens responsible for causing infectious diseases. A systematic search was conducted up until May 2022, encompassing the MEDLINE, Embase, Scopus, and Lilacs databases. We included studies focused on evaluating the antimicrobial efficacy of SeNPs on planktonic and biofilm forms and their side effects in in vitro studies. The selection process and data extraction were carried out by two researchers independently. A qualitative synthesis of the results was performed. A total of twenty-two articles were considered eligible for this scoping review. Most of the studies reported relevant antimicrobial efficacy against C. albicans, S. mutans, E. faecalis, and P. gingivalis, as well as effective antioxidant activity and limited toxicity. Further research is mandatory to critically assess the effectiveness of this alternative treatment in ex vivo and in vivo settings, with detailed information about SeNPs concentrations employed, their physicochemical properties, and the experimental conditions to provide enough evidence to address the construction and development of well-designed and safe protocols.
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Affiliation(s)
- Eulàlia Sans-Serramitjana
- Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Biotechnological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4811230, Chile;
| | - Macarena Obreque
- Center for Research in Dental Sciences (CICO), Endodontic Laboratory, Faculty of Dentistry, Universidad de La Frontera, Temuco 4811230, Chile; (M.O.); (F.M.)
| | - Fernanda Muñoz
- Center for Research in Dental Sciences (CICO), Endodontic Laboratory, Faculty of Dentistry, Universidad de La Frontera, Temuco 4811230, Chile; (M.O.); (F.M.)
| | - Carlos Zaror
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Universidad de La Frontera, Manuel Montt #112, Temuco 4811230, Chile;
- Center for Research in Epidemiology, Economics and Oral Public Health (CIEESPO), Faculty of Dentistry, Universidad de La Frontera, Temuco 4811230, Chile
| | - María de La Luz Mora
- Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Biotechnological Bioresource Nucleus (BIOREN-UFRO), Universidad de La Frontera, Temuco 4811230, Chile;
| | - Miguel Viñas
- Laboratory of Molecular Microbiology & Antimicrobials, Department of Pathology & Experimental Therapeutics, Faculty of Medicine & Health Sciences, University of Barcelona, 08907 Barcelona, Spain;
| | - Pablo Betancourt
- Center for Research in Dental Sciences (CICO), Endodontic Laboratory, Faculty of Dentistry, Universidad de La Frontera, Temuco 4811230, Chile; (M.O.); (F.M.)
- Department of Integral Adultos, Faculty of Dentistry, Universidad de La Frontera, Temuco 4811230, Chile
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9
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Castagliuolo G, Di Napoli M, Vaglica A, Badalamenti N, Antonini D, Varcamonti M, Bruno M, Zanfardino A, Bazan G. Thymus richardii subsp. nitidus (Guss.) Jalas Essential Oil: An Ally against Oral Pathogens and Mouth Health. Molecules 2023; 28:4803. [PMID: 37375358 DOI: 10.3390/molecules28124803] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
The genus Thymus L., belonging to the Lamiaceae family, contains about 220 species with a distribution that mainly extends in Europe, northwest Africa, Ethiopia, Asia, and southern Greenland. Due to their excellent biological properties, fresh and/or dried leaves and aerial parts of several Thymus ssp. have been utilized in the traditional medicine of many countries. To evaluate not only the chemical aspects but also the biological properties, the essential oils (EOs), obtained from the pre-flowering and flowering aerial parts of Thymus richardii subsp. nitidus (Guss.) Jalas, endemic to Marettimo Island (Sicily, Italy), were investigated. The chemical composition of the EOs, obtained by classical hydrodistillation and GC-MS and GC-FID analyses, showed the occurrence of similar amounts of monoterpene hydrocarbons, oxygenated monoterpenes, and sesquiterpene hydrocarbons. The main constituents of the pre-flowering oil were β-bisabolene (28.54%), p-cymene (24.45%), and thymol methyl ether (15.90%). The EO obtained from the flowering aerial parts showed as principal metabolites β-bisabolene (17.91%), thymol (16.26%), and limonene (15.59%). The EO of the flowering aerial parts, and its main pure constituents, β-bisabolene, thymol, limonene, p-cymene, and thymol methyl ether were investigated for their antimicrobial activity against oral pathogens and for their antibiofilm and antioxidant properties.
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Affiliation(s)
- Giusy Castagliuolo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Michela Di Napoli
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Alessandro Vaglica
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy
| | - Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy
- NBFC-National Biodiversity Future Center, 90133 Palermo, Italy
| | - Dario Antonini
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy
- NBFC-National Biodiversity Future Center, 90133 Palermo, Italy
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Giuseppe Bazan
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, ed. 17, 90128 Palermo, Italy
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10
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Kingsley C, Kourtidis A. Critical roles of adherens junctions in diseases of the oral mucosa. Tissue Barriers 2023; 11:2084320. [PMID: 35659464 PMCID: PMC10161952 DOI: 10.1080/21688370.2022.2084320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 10/18/2022] Open
Abstract
The oral cavity is directly exposed to a variety of environmental stimuli and contains a diverse microbiome that continuously interacts with the oral epithelium. Therefore, establishment and maintenance of the barrier function of the oral mucosa is of paramount importance for its function and for the body's overall health. The adherens junction is a cell-cell adhesion complex that is essential for epithelial barrier function. Although a considerable body of work has associated barrier disruption with oral diseases, the molecular underpinnings of these associations have not been equally investigated. This is critical, since adherens junction components also possess significant signaling roles in the cell, in addition to their architectural ones. Here, we summarize current knowledge involving adherens junction components in oral pathologies, such as cancer and oral pathogen-related diseases, while we also discuss gaps in the knowledge and opportunities for future investigation of the relationship between adherens junctions and oral diseases.
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Affiliation(s)
- Christina Kingsley
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Antonis Kourtidis
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
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11
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Pandiyan I, Arumugham MI, Doraikannan SS, Rathinavelu PK, Prabakar J, Rajeshkumar S. Antimicrobial and Cytotoxic Activity of Ocimum tenuiflorum and Stevia rebaudiana-Mediated Silver Nanoparticles - An In vitro Study. Contemp Clin Dent 2023; 14:109-114. [PMID: 37547431 PMCID: PMC10399804 DOI: 10.4103/ccd.ccd_369_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/07/2022] [Indexed: 11/12/2022] Open
Abstract
Background Silver nanoparticles (AgNPs) are the nanoparticles of silver between 1 nm and 100 nm in size. In this study, AgNPs were extracted from Ocimum tenuiflorum and Stevia rebaudiana which is a medicinal plant of Indian origin, worshipped by the Hindus and used in Ayurvedic medicine since ancient times. Aim The aim of the study was to assess the antimicrobial and cytotoxic effect of AgNPs reinforced with the herb O. tenuiflorum and S. rebaudiana against oral pathogens. Materials and Methods In this in vitro study, the organisms used were Streptococcus mutans, Staphylococcus aureus, Lactobacillus sp., and Candida albicans. Agar well-diffusion method was used to assess the antimicrobial efficacy of the nanoparticles at 25 mL, 50 mL, and 100 mL. To assess the cytotoxic effect, brine shrimp lethality assay was used. Results Zone of inhibition was found to be highest at 100 mL against S. mutans, S. aureus, Lactobacillus sp., and C. albicans. The cytotoxic activity at 5 mL and 10 mL was 0%. The maximum cytotoxicity was seen at 80 mL where 30% of the Nauplii's died. Conclusion The findings from this study suggest that AgNPs reinforced with O. tenuiflorum and S. rebaudiana extracts has the potential as an antimicrobial agent and has less cytotoxic effect on brime shrimp and can be used as an alternative to commercially available antimicrobial agents.
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Affiliation(s)
- Indumathy Pandiyan
- Department of Public Health Dentistry, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
| | | | - Sri Sakthi Doraikannan
- Department of Public Health Dentistry, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
| | - Pradeep Kumar Rathinavelu
- Department of Public Health Dentistry, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
| | - Jayashri Prabakar
- Department of Public Health Dentistry, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
| | - S Rajeshkumar
- Department of Pharmacology, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India
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12
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Said-Sadier N, Sayegh B, Farah R, Abbas LA, Dweik R, Tang N, Ojcius DM. Association between Periodontal Disease and Cognitive Impairment in Adults. Int J Environ Res Public Health 2023; 20:4707. [PMID: 36981618 PMCID: PMC10049038 DOI: 10.3390/ijerph20064707] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/12/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Periodontitis is a severe oral infection that can contribute to systemic inflammation. A large body of evidence suggests a role for systemic inflammation in the initiation of neurodegenerative disease. This systematic review synthesized data from observational studies to investigate the association between periodontitis and neuroinflammation in adults. METHODS AND MATERIALS A systematic literature search of PubMed, Web of Science, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) was performed for studies published from the date of inception up to September 2021. Search terms for the exposure "oral disease" and outcome "dementia", "neuroinflammation" and "cognitive decline" were used. Study selection and data extraction were independently undertaken by two reviewers. The final eligible articles were included only if the exposure is periodontitis and the outcome is cognitive impairment or dementia or a topic related to this condition, and if the study was conducted in an adult population. The quality and risk of bias were assessed by Newcastle Ottawa Scale (NOS). Qualitative synthesis was used to narratively synthesize the results. Six cohort studies, three cross-sectional studies, and two case-control studies met the inclusion criteria. These eleven studies were only narratively synthesized. Meta-analysis was not performed due to the methodological heterogeneity of the studies. RESULTS The results of included studies show that chronic periodontitis patients with at least eight years of exposure are at higher risk of developing cognitive decline and dementia. Oral health measures such as gingival inflammation, attachment loss, probing depth, bleeding on probing, and alveolar bone loss are associated with cognitive impairment. The reduction of epidermal growth factor (EGF), interleukin 8 (IL-8), interferon γ-induced protein 10 (IP-10), and monocyte chemoattractant protein-1 (MCP-1) in addition to over expression of interleukin 1-β (IL-1β) are significant in patients suffering from cognitive decline with pre-existing severe periodontitis. CONCLUSIONS All the included studies show evidence of an association between periodontitis and cognitive impairment or dementia and Alzheimer's disease pathology. Nonetheless, the mechanisms responsible for the association between periodontitis and dementia are still unclear and warrant further investigation.
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Affiliation(s)
- Najwane Said-Sadier
- College of Health Sciences, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates
| | - Batoul Sayegh
- Neuroscience Research Center (NRC), Lebanese University, Beirut 1533, Lebanon
| | - Raymond Farah
- Neuroscience Research Center (NRC), Lebanese University, Beirut 1533, Lebanon
| | - Linda Abou Abbas
- Neuroscience Research Center (NRC), Lebanese University, Beirut 1533, Lebanon
- INSPECT-LB (Institut National de Santé Publique, d’Épidémiologie Clinique et de Toxicologie-Liban), Beirut 1103, Lebanon
| | - Rania Dweik
- College of Health Sciences, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates
| | - Norina Tang
- Department of Periodontics, University of the Pacific, San Francisco, CA 94103, USA
- Department of Laboratory Medicine, Veterans Affairs Medical Center, San Francisco, CA 94121, USA
- Arthur Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA
| | - David M. Ojcius
- Arthur Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA
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Kováč J, Slobodníková L, Trajčíková E, Rendeková K, Mučaji P, Sychrová A, Bittner Fialová S. Therapeutic Potential of Flavonoids and Tannins in Management of Oral Infectious Diseases-A Review. Molecules 2022; 28:molecules28010158. [PMID: 36615352 PMCID: PMC9821998 DOI: 10.3390/molecules28010158] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Medicinal plants are rich sources of valuable molecules with various profitable biological effects, including antimicrobial activity. The advantages of herbal products are their effectiveness, relative safety based on research or extended traditional use, and accessibility without prescription. Extensive and irrational usage of antibiotics since their discovery in 1928 has led to the increasing expiration of their effectiveness due to antibacterial resistance. Now, medical research is facing a big and challenging mission to find effective and safe antimicrobial therapies to replace inactive drugs. Over the years, one of the research fields that remained the most available is the area of natural products: medicinal plants and their metabolites, which could serve as active substances to fight against microbes or be considered as models in drug design. This review presents selected flavonoids (such as apigenin, quercetin, kaempferol, kurarinone, and morin) and tannins (including oligomeric proanthocyanidins, gallotannins, ellagitannins, catechins, and epigallocatechin gallate), but also medicinal plants rich in these compounds as potential therapeutic agents in oral infectious diseases based on traditional usages such as Agrimonia eupatoria L., Hamamelis virginiana L., Matricaria chamomilla L., Vaccinium myrtillus L., Quercus robur L., Rosa gallica L., Rubus idaeus L., or Potentilla erecta (L.). Some of the presented compounds and extracts are already successfully used to maintain oral health, as the main or additive ingredient of toothpastes or mouthwashes. Others are promising for further research or future applications.
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Affiliation(s)
- Ján Kováč
- Department of Stomatology and Maxillofacial Surgery, Faculty of Medicine, Comenius University in Bratislava, Heydukova 10, 812 50 Bratislava, Slovakia
- Department of Stomatology and Maxillofacial Surgery, St. Elizabeth’s Hospital, Heydukova 10, 812 50 Bratislava, Slovakia
| | - Lívia Slobodníková
- Institute of Microbiology, Faculty of Medicine and the University Hospital in Bratislava, Comenius University in Bratislava, Sasinkova 4, 811 08 Bratislava, Slovakia
| | - Eva Trajčíková
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia
| | - Katarína Rendeková
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia
| | - Pavel Mučaji
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia
| | - Alice Sychrová
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, Palackého 1946/1, 612 00 Brno, Czech Republic
| | - Silvia Bittner Fialová
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia
- Correspondence: ; Tel.: +421-250-117-206
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14
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Reddy N, Golob Deeb J, Kitten T, Carrico CK, Grzech-Leśniak K. The In Vitro Effect of Laser Irradiation (Er:YAG and CO(2)) and Chemical Reagents (Hydrogen Peroxide, Sodium Hypochlorite, Chlorhexidine, or Sodium Fluoride) Alone or in Combination on Reducing Root Caries Bacteria. Int J Mol Sci 2022; 23. [PMID: 36555374 DOI: 10.3390/ijms232415732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/08/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
(1) Lasers have been used for the treatment of dentinal hypersensitivity and bacterial reductions in periodontology. The purpose of this in vitro study was to evaluate the effect of Carbon Dioxide (CO2) and Erbium-doped Yttrium Aluminum Garnet (Er:YAG) lasers with chlorhexidine (CHX), hydrogen peroxide (H2O2), sodium hypochlorite (NaOCl), or sodium fluoride (NaF) on the viability of oral bacteria associated with root caries. (2) Streptococcus mutans, Streptococcus sanguinis, and Enterococcus faecalis were grown in Brain Heart Infusion (BHI) broth, diluted to an OD660 of 0.5, and treated with antiseptics with or without simultaneous irradiation with the Er:YAG and CO2 lasers for 30 s repeated three times. The treatment groups consisted of 1: no treatment, 2: 0.5% H2O2 alone, 3: 0.5% NaOCl alone, 4: 0.12% CHX alone, 5: 2% NaF alone, 6: laser alone, 7: laser with 0.5% H2O2, 8: laser with 0.5% NaOCl, 9: laser with 0.12% CHX, and 10: laser with 2% NaF for both lasers. The microbial viability was determined through plating and viable colonies were counted, converted into CFU/mL, and transformed into log form. The statistical analysis was performed using a two-tailed paired t-test. (3) The use of CO2 and Er:YAG lasers alone failed to show statistically significant antibacterial activity against any of the bacteria. The only effective monotreatment was CHX for S. mutans. The combined treatment of 0.5% NaOCl with Er:YAG produced the greatest reduction in overall viability. (4) The combination of the Er:YAG laser with 0.5% NaOCl resulted in the largest reduction in bacterial survival when compared to monotherapies with antimicrobial solutions or lasers.
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15
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Šurín Hudáková N, Kačírová J, Sondorová M, Šelianová S, Mucha R, Maďar M. Inhibitory Effect of Bacillus licheniformis Strains Isolated from Canine Oral Cavity. Life (Basel) 2022; 12:life12081238. [PMID: 36013417 PMCID: PMC9409769 DOI: 10.3390/life12081238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/04/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Bacillus licheniformis is used in a broad spectrum of areas, including some probiotic preparations for human and veterinary health. Moreover, B. licheniformis strains are known producers of various bioactive substances with antimicrobial and antibiofilm effects. In searching for new potentially beneficial bacteria for oral health, the inhibitory effect of B. licheniformis strains isolated from canine dental biofilm against pathogenic oral bacteria was evaluated. The antimicrobial effect of neutralized cell-free supernatants (nCFS) was assessed in vitro on polystyrene microtiter plates. Furthermore, molecular and morphological analyses were executed to evaluate the production of bioactive substances. To determine the nature of antimicrobial substance present in nCFS of B. licheniformis A-1-5B-AP, nCFS was exposed to the activity of various enzymes. The nCFS of B. licheniformis A-1-5B-AP significantly (p < 0.0001) reduced the growth of Porphyromonas gulae 3/H, Prevotella intermedia 1/P and Streptococcus mutans ATCC 35668. On the other hand, B. licheniformis A-2-11B-AP only significantly (p < 0.0001) inhibited the growth of P. intermedia 1/P and S. mutans ATCC 35668. However, enzyme-treated nCFS of B. licheniformis A-1-5B-AP did not lose its antimicrobial effect and significantly (p < 0.0001) inhibited the growth of Micrococcus luteus DSM 1790. Further studies are needed for the identification of antimicrobial substances.
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Affiliation(s)
- Natália Šurín Hudáková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia
| | - Jana Kačírová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia
| | - Miriam Sondorová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia
| | - Svetlana Šelianová
- Clinic of Stomatology and Maxillofacial Surgery, Faculty of Medicine, University of Pavol Jozef Safarik in Kosice, 040 01 Kosice, Slovakia
| | - Rastislav Mucha
- Institute of Neurobiology, Biomedical Research Center of the Slovak Academy of Sciences, Soltesovej 4, 040 01 Kosice, Slovakia
| | - Marián Maďar
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia
- Correspondence: ; Tel.: +421-9-4971-5632
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16
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Carvalho ÊS, Ayres VFS, Oliveira MR, Corrêa GM, Takeara R, Guimarães AC, Santiago MB, Oliveira TAS, Martins CHG, Crotti AEM, Silva EO. Anticariogenic Activity of Three Essential Oils from Brazilian Piperaceae. Pharmaceuticals (Basel) 2022; 15:972. [PMID: 36015120 DOI: 10.3390/ph15080972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 11/25/2022] Open
Abstract
The current trend toward using natural food additives, cosmetics, and medicines has motivated industries to substitute synthetic compounds for natural products. Essential oils (EOs) from medicinal plants are a well-known source of chemical compounds that display several interesting biological activities, including antimicrobial action. In this study, we investigated the antibacterial activity of EOs extracted from three Piperaceae species collected in the Brazilian Amazon region against a representative panel of cariogenic bacteria. The minimum inhibitory concentration (MIC) of the essential oils extracted from Peperomia pellucida (PP-EO), Piper marginatum (PM-EO), and Piper callosum (PC-EO) was determined against Streptococcus mutans, S. mitis, S. sanguinis, S. salivarius, S. sobrinus, Enterococcus faecalis, and Lactobacillus casei by using the microplate microdilution method. PM-EO, PC-EO, and PP-EO displayed antibacterial activity against all the tested cariogenic bacteria. PM-EO displayed the best inhibitory activity, with MIC values ranging from 50 to 500 µg/mL. The lowest MIC values were obtained for PM-EO against S. mitis (MIC = 75 μg/mL), Lactobacillus casei (MIC = 50 μg/mL), and S. mutans (MIC = 50 μg/mL). Gas chromatography mass spectrometry (GC-MS) analysis allowed the chemical composition of all the EOs to be identified. The main constituents of PM-EO, PC-EO, and PP-EO were 3,4-(methylenedioxy)propiophenone, α-pinene, and dillapiole, respectively. Finally, the compounds that were exclusively detected in PM-EO are highlighted. Our results suggest that PM-EO may be used in products for treating dental caries and periodontal diseases.
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Wezgowiec J, Wieczynska A, Wieckiewicz M, Czarny A, Malysa A, Seweryn P, Zietek M, Paradowska-Stolarz A. Evaluation of Antimicrobial Efficacy of UVC Radiation, Gaseous Ozone, and Liquid Chemicals Used for Disinfection of Silicone Dental Impression Materials. Materials (Basel) 2022; 15:ma15072553. [PMID: 35407884 PMCID: PMC8999620 DOI: 10.3390/ma15072553] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 02/02/2023]
Abstract
Effective disinfection of dental impressions is an indispensable requirement for the safety of dental personnel and patients. The ideal method should be not only effective but also convenient, cheap, and environmentally friendly. This study aimed to reliably evaluate the efficacy of ultraviolet C (UVC) radiation, gaseous ozone, and commercial liquid chemicals used for silicone dental impressions disinfection. These methods were applied to two types of elastomeric impression materials: condensation silicones and addition silicones of various consistency (putty, medium, and light). The antimicrobial effectiveness against Pseudomonas aeruginosa, Staphylococcus aureus, and Candida albicans was evaluated in vitro by counting colony-forming units (CFU) on the surface of samples. The one-way ANOVA with a Tukey HSD test or the Kruskal–Wallis with a Dunn’s test was performed. The results obtained revealed the efficacy of the proposed methods for disinfection of both C-silicones and A-silicones in most of the studied groups. Only one material (Panasil initial contact Light) was not effectively disinfected after UVC irradiation or ozone application. In conclusion, the potential of each disinfection method should be evaluated separately for each material. Moreover, in further research, the possible influence of the proposed methods on the physical properties of the impression materials should be thoroughly investigated.
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Affiliation(s)
- Joanna Wezgowiec
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland; (J.W.); (A.M.); (P.S.); (M.Z.)
| | - Anna Wieczynska
- Department of Physicochemistry of Microorganisms, Institute of Genetics and Microbiology, University of Wroclaw, Przybyszewskiego 63/77, 51-148 Wroclaw, Poland;
- Department of Engineering and Technology of Chemical Processes, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Mieszko Wieckiewicz
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland; (J.W.); (A.M.); (P.S.); (M.Z.)
- Correspondence: (M.W.); (A.P.-S.)
| | - Anna Czarny
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 12 R. Weigl St., 53-114 Wroclaw, Poland;
| | - Andrzej Malysa
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland; (J.W.); (A.M.); (P.S.); (M.Z.)
| | - Piotr Seweryn
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland; (J.W.); (A.M.); (P.S.); (M.Z.)
| | - Marek Zietek
- Department of Experimental Dentistry, Wroclaw Medical University, 50-425 Wroclaw, Poland; (J.W.); (A.M.); (P.S.); (M.Z.)
| | - Anna Paradowska-Stolarz
- Division of Dentofacial Anomalies, Department of Maxillofacial Orthopedics and Orthodontics, Wroclaw Medical University, 50-425 Wroclaw, Poland
- Correspondence: (M.W.); (A.P.-S.)
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18
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Abstract
Periodontitis, a microbiome-driven inflammatory disease of the tooth-attachment apparatus, is epidemiologically linked with other disorders, including cardio-metabolic, cognitive neurodegenerative and autoimmune diseases, respiratory infections, and certain cancers. These associations may, in part, be causal, as suggested by interventional studies showing that local treatment of periodontitis reduces systemic inflammation and surrogate markers of comorbid diseases. The potential cause-and-effect connection between periodontitis and comorbidities is corroborated by studies in preclinical models of disease, which additionally provided mechanistic insights into these associations. This overview discusses recent advances in our understanding of the periodontitis-systemic disease connection, which may potentially lead to innovative therapeutic options to reduce the risk of periodontitis-linked comorbidities.
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Affiliation(s)
- George Hajishengallis
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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19
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Elebyary O, Barbour A, Fine N, Tenenbaum HC, Glogauer M. The Crossroads of Periodontitis and Oral Squamous Cell Carcinoma: Immune Implications and Tumor Promoting Capacities. Front Oral Health 2022; 1:584705. [PMID: 35047982 PMCID: PMC8757853 DOI: 10.3389/froh.2020.584705] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/16/2020] [Indexed: 12/26/2022] Open
Abstract
Periodontitis (PD) is increasingly considered to interact with and promote a number of inflammatory diseases, including cancer. In the case of oral squamous cell carcinoma (OSCC) the local inflammatory response associated with PD is capable of triggering altered cellular events that can promote cancer cell invasion and proliferation of existing primary oral carcinomas as well as supporting the seeding of metastatic tumor cells into the gingival tissue giving rise to secondary tumors. Both the immune and stromal components of the periodontium exhibit phenotypic alterations and functional differences during PD that result in a microenvironment that favors cancer progression. The inflammatory milieu in PD is ideal for cancer cell seeding, migration, proliferation and immune escape. Understanding the interactions governing this attenuated anti-tumor immune response is vital to unveil unexplored preventive or therapeutic possibilities. Here we review the many commonalities between the oral-inflammatory microenvironment in PD and oral-inflammatory responses that are associated with OSCC progression, and how these conditions can act to promote and sustain the hallmarks of cancer.
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Affiliation(s)
- Omnia Elebyary
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | | | - Noah Fine
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Howard C Tenenbaum
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.,Department of Dentistry, Centre for Advanced Dental Research and Care, Mount Sinai Hospital, Toronto, ON, Canada
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.,Department of Dentistry, Centre for Advanced Dental Research and Care, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Dental Oncology, Maxillofacial and Ocular Prosthetics, Princess Margaret Cancer Centre, Toronto, ON, Canada
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20
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Abstract
Periodontitis is a common inflammatory disease of infectious origins that often evolves into a chronic condition. Aside from its importance as a stomatologic ailment, chronic periodontitis has gained relevance since it has been shown that it can develop into a systemic condition characterized by unresolved hyper-inflammation, disruption of the innate and adaptive immune system, dysbiosis of the oral, gut and other location's microbiota and other system-wide alterations that may cause, coexist or aggravate other health issues associated to elevated morbi-mortality. The relationships between the infectious, immune, inflammatory, and systemic features of periodontitis and its many related diseases are far from being fully understood and are indeed still debated. However, to date, a large body of evidence on the different biological, clinical, and policy-enabling sources of information, is available. The aim of the present work is to summarize many of these sources of information and contextualize them under a systemic inflammation framework that may set the basis to an integral vision, useful for basic, clinical, and therapeutic goals.
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Affiliation(s)
- Mireya Martínez-García
- Sociomedical Research Unit, National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
| | - Enrique Hernández-Lemus
- Computational Genomics Division, National Institute of Genomic Medicine (INMEGEN), Mexico City, Mexico.,Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de Mèxico, Mexico City, Mexico
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21
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Amorim LS, Marques Goes PE, Figueiredo RDA, Souza JADCR, Tavares JF, Castellano LRC, Castro RDD, Farias D, de Aquino SG. In vitro antibacterial and anti-inflammatory effects of Anacardium occidentale L. extracts and their toxicity on PBMCs and zebrafish embryos. Drug Chem Toxicol 2021; 45:2653-2663. [PMID: 34595971 DOI: 10.1080/01480545.2021.1981365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This study evaluated the in vitro antimicrobial and immunomodulatory action of crude extracts from Anacardium occidentale L. (cashew tree) leaves and bark, and to determine their toxicity to peripheral-blood mononuclear cells (PBMCs) and to zebrafish embryos and larvae. Chemical analysis of extracts was performed by proton nuclear magnetic resonance (1H-NMR). The antibacterial activity was evaluated against selected bacteria strains by determining the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Cytotoxicity of the extracts was assessed using resazurin method, while the effect on production of ROS by PMN leukocytes was measured by luminol. Embryotoxicity to zebrafish was assessed using the fish embryo acute toxicity test (FET) and quantification of toxicity marker enzymes (AChE, LDH, and GST). 1H-NMR results showed anacardic acid as the main component of the extracts. All bacterial species tested were sensitive to the extracts, with MICs ranging from 312.5 to 10,000 μg/mL. Streptococcus mutans and Escherichia coli were the most susceptible species. The extracts promoted cell viability above 75% at concentrations from 1.25 to 80 μg/mL. Both extracts reduced zymosan-induced ROS (p < 0.05) at concentrations of 1, 8, and 80 μg/mL compared to the control. In vivo, there were embryotoxic effects in zebrafish embryos exposed to both extracts through the presence of lethal and sublethal endpoints. The samples also acted by inhibiting the activities of biomarker enzymes. The A. occidentale L. bark and leaf extracts showed antimicrobial potential and modulated ROS production in vitro, but these also showed embryotoxic effects to zebrafish.
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Affiliation(s)
- Luana Souza Amorim
- Graduate Program in Dentistry, Center of Health Sciences, Federal University of Paraíba - UFPB, João Pessoa, Brazil
| | - Pedro Everton Marques Goes
- Graduate Program in Dentistry, Center of Health Sciences, Federal University of Paraíba - UFPB, João Pessoa, Brazil
| | | | | | - Josean Fechine Tavares
- Department of Pharmaceutical Sciences, Center of Health Sciences, Federal University of Paraíba - UFPB, João Pessoa, Brazil
| | | | - Ricardo Dias de Castro
- Graduate Program in Dentistry, Center of Health Sciences, Federal University of Paraíba - UFPB, João Pessoa, Brazil
| | - Davi Farias
- Department of Molecular Biology, Center of Exact and Natural Sciences (CCEN), Federal University of Paraíba - UFPB, João Pessoa, Brazil
| | - Sabrina Garcia de Aquino
- Graduate Program in Dentistry, Center of Health Sciences, Federal University of Paraíba - UFPB, João Pessoa, Brazil
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22
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Oliveira GRC, Anna CCS, Lamarão LM, Guimarães AC, da Rocha CM, Bahia MO, de Souza CR, Calcagno DQ, de Assumpção PP, Burbano RR. Quantitative difference of oral pathogen between individuals with gastric cancer and individuals without cancer. Oncotarget 2021; 12:1677-86. [PMID: 34434496 DOI: 10.18632/oncotarget.28034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 07/13/2021] [Indexed: 12/24/2022] Open
Abstract
The loss of teeth and lack of oral hygiene have been associated with the risk of developing gastric cancer (GC) in several populations evidenced in epidemiological studies. In this study, we quantitatively compared the proportion of oral pathogens in individuals with gastric cancer and individuals without cancer in a referral hospital in the city of Belém, Brazil. This study evaluated 192 patients with GC and 192 patients without cancer. Periodontal clinical examination was performed, and all individuals were submitted to the collection of salivary and dental biofilms. When comparing the median periodontal indexes in the gastric and cancer-free groups, it was statistically significant (p < 0.001) in the gastric cancer group compared to the probing depth of the periodontal pocket. Levels of bacterial DNA were observed in saliva and dental plaque, with a statistically significant difference (p < 0.001) between individuals with cancer and without neoplasia in all the bacteria surveyed. Significant relationships (p < 0.001) between biological agents and GC have been found in bacterial species that cause high rates of periodontal pathology and caries. The results suggest a different quantitative association in the presence of oral pathogens between individuals without cancer and patients with GC. As noted, it cannot be said that the bacteria present in the oral cavity increase the risk of gastric cancer or are aggravating factors of the disease. However, it is worth mentioning that, as it is part of the digestive system, the lack of care for the oral cavity can negatively affect the treatment of patients with gastric cancer.
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23
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Stašková A, Sondorová M, Nemcová R, Kačírová J, Maďar M. Antimicrobial and Antibiofilm Activity of the Probiotic Strain Streptococcus salivarius K12 against Oral Potential Pathogens. Antibiotics (Basel) 2021; 10:793. [PMID: 34209988 DOI: 10.3390/antibiotics10070793] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 12/19/2022] Open
Abstract
Oral probiotics are increasingly used in the harmonization of the oral microbiota in the prevention or therapy of various oral diseases. Investigation of the antimicrobial activity of the bacteriocinogenic strain Streptococcus salivarius K12 against oral pathogens shows promising results, not only in suppressing growth, but also in eliminating biofilm formation. Based on these findings, we decided to investigate the antimicrobial and antibiofilm activity of the neutralized cell-free supernatant (nCFS) of S. salivarius K12 at various concentrations against selected potential oral pathogens under in vitro conditions on polystyrene microtiter plates. The nCFS of S. salivarius K12 significantly reduced growth (p < 0.01) in Streptococcus mutans Clarke with increasing concentration from 15 to 60 mg/mL and also in Staphylococcus hominis 41/6 at a concentration of 60 mg/mL (p < 0.001). Biofilm formation significantly decreased (p < 0.001) in Schaalia odontolytica P10 at nCFS concentrations of 60 and 30 mg/mL. Biofilm inhibition (p < 0.001) was also observed in Enterobacter cloacae 4/2 at a concentration of 60 mg/mL. In Schaalia odontolytica P10 and Enterobacter cloacae 4/2, the nCFS had no effect on their growth.
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24
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Jepsen K, Falk W, Brune F, Fimmers R, Jepsen S, Bekeredjian-Ding I. Prevalence and antibiotic susceptibility trends of periodontal pathogens in the subgingival microbiota of German periodontitis patients: A retrospective surveillance study. J Clin Periodontol 2021; 48:1216-1227. [PMID: 33934384 DOI: 10.1111/jcpe.13468] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 02/20/2021] [Accepted: 03/19/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This retrospective surveillance study aimed to follow periodontitis-associated bacterial profiles and to identify time-dependent changes in antibiotic susceptibility patterns. MATERIALS AND METHODS From 2008 to 2015, bacterial specimen from deep periodontal pockets were collected from a total of 7804 German adults diagnosed with periodontitis. Presence of selected bacteria was confirmed by anaerobic culture and nucleic acid amplification. Antimicrobial susceptibility of clinical isolates was tested by disc diffusion with antibiotics used for the treatment of periodontitis and oral infections. The prevalences of periodontal pathogens were calculated and temporal evolution of antimicrobial susceptibility towards amoxicillin, amoxicillin/clavulanic acid, metronidazole, doxycycline, clindamycin, azithromycin, ciprofloxacin and ampicillin was analysed with logistic regression. RESULTS The prevalence of patients harbouring bacteria was 95.9% Fusobacterium nucleatum, 88.0% Tannerella forsythia, 76.4% Treponema denticola, 76.5%, Campylobacter rectus, 76.0% Eikenella corrodens, 75.0% Capnocytophaga spp., 68.2% Porphyromonas gingivalis, 57.7% Peptostreptococcus micros, 43.1% Prevotella intermedia, 30.4% Eubacterium nodatum and 21.5% Aggregatibacter actinomycetemcomitans. In 63.5% of patients, one or more isolates were not susceptible to at least one of the antibiotics tested. The data further revealed a trend towards decreasing susceptibility profiles (p < 0.05) with antibiotic non-susceptibilities in 37% of patients in 2008 and in 70% in 2015. CONCLUSIONS The present study confirmed a high prevalence of periodontal pathogens in the subgingival microbiota of German periodontitis patients. The data revealed an incremental increase in isolates displaying resistance to some antibiotics but no relevant change in susceptibility to amoxicillin and metronidazole.
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Affiliation(s)
- Karin Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, Center for Dental and Oral Medicine, University Hospital Bonn, Bonn, Germany
| | - Wolfgang Falk
- Center for Oral & Dental Microbiology, Service Laboratory, Kiel, Germany
| | - Friederike Brune
- Department of Periodontology, Operative and Preventive Dentistry, Center for Dental and Oral Medicine, University Hospital Bonn, Bonn, Germany
| | - Rolf Fimmers
- Institute for Medical Biometry, Informatics and Epidemiology, University of Bonn, Bonn, Germany
| | - Søren Jepsen
- Department of Periodontology, Operative and Preventive Dentistry, Center for Dental and Oral Medicine, University Hospital Bonn, Bonn, Germany
| | - Isabelle Bekeredjian-Ding
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany.,Institute of Medical Microbiology, Immunology and Parasitology, University of Bonn, Bonn, Germany
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25
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Panda S, Rath S, Garhanayak M, Bidyasagar Bal SC, Nagarajappa R. In vitro evaluation of antimicrobial efficacy of silver zeolite against common oral pathogens. Rocz Panstw Zakl Hig 2021; 72:203-208. [PMID: 34114779 DOI: 10.32394/rpzh.2021.0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Objectives Antimicrobial efficacy and toxicity analysis of 5 different concentrations of silver zeolite (SZ) compound against 5 common oral pathogens Streptococcus mutans, Streptococcus pyogenes, Lactobacillus sp., Staphylococcus aureus, Candida albicans. Material and methods The antimicrobial efficacy of 5 different concentrations of SZ was tested against 5 common oral pathogens using the agar well diffusion method and the MIC and MBC values were determined using the micro broth dilution method. The toxicity of all 5 different concentrations was evaluated using brine shrimp assay and lethal concentration (Lc50) value was determined. Results At 10 μg/mL the antimicrobial activity of SZ was almost negligible. The antimicrobial activity was observed in an increasing trend against all the test microorganisms as the concentration increased. At 75 & 100 μg/mL the zone of inhibitions was more than the control. Furthermore, MIC and MBC values of SZ with concentrations 25, 50, 75, and 100 μg/mL were determined and recorded. SZ was equally effective against all the test organisms. The LC25 (lethal concentration25) value was 1.6 μg/mL, whereas the LC50 value was 1.77 μg/mL and the LC75 value was 1.90 μg/mL, calculated from the probit computational method. Conclusion SZ has the potential to change the ongoing system and bring about a revolution as an antimicrobial drug.
However, the dose must be regulated as it can be toxic in higher concentrations. SZ compounds with the correct study of physicochemical properties and toxicity analysis can increase their pharmacological use and market value.
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Affiliation(s)
- Sangram Panda
- Department of Prosthodontics, Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India
| | - Shakti Rath
- Central Research Laboratory, Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India
| | - Mirna Garhanayak
- Department of Prosthodontics, Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India
| | - Sourav Chandra Bidyasagar Bal
- Department of Public Health Dentistry, Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India
| | - Ramesh Nagarajappa
- Department of Public Health Dentistry, Institute of Dental Sciences, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India
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26
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Brealey JC, Leitão HG, van der Valk T, Xu W, Bougiouri K, Dalén L, Guschanski K. Dental Calculus as a Tool to Study the Evolution of the Mammalian Oral Microbiome. Mol Biol Evol 2020; 37:3003-3022. [PMID: 32467975 PMCID: PMC7530607 DOI: 10.1093/molbev/msaa135] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dental calculus, the calcified form of the mammalian oral microbial plaque biofilm, is a rich source of oral microbiome, host, and dietary biomolecules and is well preserved in museum and archaeological specimens. Despite its wide presence in mammals, to date, dental calculus has primarily been used to study primate microbiome evolution. We establish dental calculus as a valuable tool for the study of nonhuman host microbiome evolution, by using shotgun metagenomics to characterize the taxonomic and functional composition of the oral microbiome in species as diverse as gorillas, bears, and reindeer. We detect oral pathogens in individuals with evidence of oral disease, assemble near-complete bacterial genomes from historical specimens, characterize antibiotic resistance genes, reconstruct components of the host diet, and recover host genetic profiles. Our work demonstrates that metagenomic analyses of dental calculus can be performed on a diverse range of mammalian species, which will allow the study of oral microbiome and pathogen evolution from a comparative perspective. As dental calculus is readily preserved through time, it can also facilitate the quantification of the impact of anthropogenic changes on wildlife and the environment.
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Affiliation(s)
- Jaelle C Brealey
- Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Henrique G Leitão
- Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Tom van der Valk
- Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Wenbo Xu
- Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Katia Bougiouri
- Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
| | - Love Dalén
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
- Centre for Palaeogenetics, Stockholm, Sweden
| | - Katerina Guschanski
- Department of Ecology and Genetics, Animal Ecology, Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden
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27
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Lapinska B, Szram A, Zarzycka B, Grzegorczyk J, Hardan L, Sokolowski J, Lukomska-Szymanska M. An In Vitro Study on the Antimicrobial Properties of Essential Oil Modified Resin Composite against Oral Pathogens. Materials (Basel) 2020; 13:E4383. [PMID: 33019681 DOI: 10.3390/ma13194383] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/14/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
Modifying the composition of dental restorative materials with antimicrobial agents might induce their antibacterial potential against cariogenic bacteria, e.g., S. mutans and L. acidophilus, as well as antifungal effect on C. albicans that are major oral pathogens. Essential oils (EOs) are widely known for antimicrobial activity and are successfully used in dental industry. The study aimed at evaluating antibacterial and antifungal activity of EOs and composite resin material (CR) modified with EO against oral pathogens. Ten EOs (i.e., anise, cinnamon, citronella, clove, geranium, lavender, limette, mint, rosemary thyme) were tested using agar diffusion method. Cinnamon and thyme EOs showed significantly highest antibacterial activity against S. mutans and L. acidophilus among all tested EOs. Anise and limette EOs showed no antibacterial activity against S. mutans. All tested EOs exhibited antifungal activity against C. albicans, whereas cinnamon EO showed significantly highest and limette EO significantly lowest activity. Next, 1, 2 or 5 µL of cinnamon EO was introduced into 2 g of CR and microbiologically tested. The modified CR showed higher antimicrobial activity in comparison to unmodified one. CR containing 2 µL of EO showed the best antimicrobial properties against S. mutans and C. albicans, while CR modified with 1 µL of EO showed the best antimicrobial properties against L. acidophilus.
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28
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Abstract
Dental medicine is one of the fields of medicine where the most common pathologies are of bacterial and fungal origins. This review is mainly focused on the antimicrobial effects of cinnamon essential oil (EO), cinnamon extracts, and pure compounds against different oral pathogens and the oral biofilm and the possible effects on soft mouth tissue. Basic information is provided about cinnamon, as is a review of its antimicrobial properties against the most common microorganisms causing dental caries, endodontic and periodontal lesions, and candidiasis. Cinnamon EO, cinnamon extracts, and pure compounds show significant antimicrobial activities against oral pathogens and could be beneficial in caries and periodontal disease prevention, endodontics, and candidiasis treatment.
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Affiliation(s)
- Spartak Yanakiev
- Medical College Y. Filaretova, Medical University-Sofia, Yordanka Filaretova Street 3, 1000 Sofia, Bulgaria
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29
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Paqué PN, Herz C, Jenzer JS, Wiedemeier DB, Attin T, Bostanci N, Belibasakis GN, Bao K, Körner P, Fritz T, Prinz J, Schmidlin PR, Thurnheer T, Wegehaupt FJ, Mitsakakis K, Peham JR. Microbial Analysis of Saliva to Identify Oral Diseases Using a Point-of-Care Compatible qPCR Assay. J Clin Med 2020; 9:E2945. [PMID: 32933084 DOI: 10.3390/jcm9092945] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 12/12/2022] Open
Abstract
Oral health is maintained by a healthy microbiome, which can be monitored by state-of-the art diagnostics. Therefore, this study evaluated the presence and quantity of ten oral disease-associated taxa (P. gingivalis, T. forsythia, T. denticola, F. nucleatum, C. rectus, P. intermedia, A. actinomycetemcomitans, S. mutans, S. sobrinus, oral associated Lactobacilli) in saliva and their clinical status association in 214 individuals. Upon clinical examination, study subjects were grouped into healthy, caries and periodontitis and their saliva was collected. A highly specific point-of-care compatible dual color qPCR assay was developed and used to study the above-mentioned bacteria of interest in the collected saliva. Assay performance was compared to a commercially available microbial reference test. Eight out of ten taxa that were investigated during this study were strong discriminators between the periodontitis and healthy groups: C. rectus, T. forsythia, P. gingivalis, S. mutans, F. nucleatum, T. denticola, P. intermedia and oral Lactobacilli (p < 0.05). Significant differentiation between the periodontitis and caries group microbiome was only shown for S. mutans (p < 0.05). A clear distinction between oral health and disease was enabled by the analysis of quantitative qPCR data of target taxa levels in saliva.
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30
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Sateriale D, Facchiano S, Colicchio R, Pagliuca C, Varricchio E, Paolucci M, Volpe MG, Salvatore P, Pagliarulo C. In vitro Synergy of Polyphenolic Extracts From Honey, Myrtle and Pomegranate Against Oral Pathogens, S. mutans and R. dentocariosa. Front Microbiol 2020; 11:1465. [PMID: 32849317 PMCID: PMC7396681 DOI: 10.3389/fmicb.2020.01465] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 06/04/2020] [Indexed: 01/23/2023] Open
Abstract
The increasing incidence rate of oral diseases, the wide spread of antimicrobial resistance, and the adverse effects of conventional antibiotics mean alternative prevention and treatment options are needed to counteract oral pathogens. In this regard, our study aims to evaluate the antibacterial activity of polyphenolic extracts prepared from acacia honey, myrtle leaves, and pomegranate peel against cariogenic bacteria, such as Streptococcus mutans and Rothia dentocariosa. The chemical-physical parameters of acacia honey and the RP-HPLC polyphenolic profile of pomegranate peel extract have been previously described in our studies, while the characterization of myrtle extract, performed by HPLC analysis, is reported here. All the extracts were used singly and in binary combinations to highlight any synergistic effects. Moreover, the extracts were tested in association with amoxicillin to evaluate their ability to reduce the effective dose of this drug in vitro. The values of minimal inhibitory concentrations and minimal bactericidal concentrations have been used to quantitatively measure the antibacterial activity of the single extracts, while the fractional inhibitory concentration index has been considered as predictor of in vitro anticariogenic synergistic effects. Finally, a time-kill curve method allowed for the evaluation of the bactericidal efficacy of the combined extracts. The microbiological tests suggest that acacia honey, myrtle, and pomegranate extracts are able to inhibit the cariogenic bacteria, also with synergistic effects. This study provides useful and encouraging results for the use of natural extract combinations alone or in association with antibiotics (adjuvant therapy) as a valid alternative for the prevention and treatment of oral infectious diseases.
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Affiliation(s)
- Daniela Sateriale
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Serena Facchiano
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Roberta Colicchio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Chiara Pagliuca
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Ettore Varricchio
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Marina Paolucci
- Department of Science and Technology, University of Sannio, Benevento, Italy
| | | | - Paola Salvatore
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- CEINGE, Advanced Biotechnologies s.c.ar.l., Naples, Italy
| | - Caterina Pagliarulo
- Department of Science and Technology, University of Sannio, Benevento, Italy
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31
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Sahrmann P, Gilli F, Wiedemeier DB, Attin T, Schmidlin PR, Karygianni L. The Microbiome of Peri-Implantitis: A Systematic Review and Meta-Analysis. Microorganisms 2020; 8:microorganisms8050661. [PMID: 32369987 PMCID: PMC7284896 DOI: 10.3390/microorganisms8050661] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 12/30/2022] Open
Abstract
This review aimed to systematically compare microbial profiles of peri-implantitis to those of periodontitis and healthy implants. Therefore, an electronic search in five databases was conducted. For inclusion, studies assessing the microbiome of peri-implantitis in otherwise healthy patients were considered. Literature was assessed for consistent evidence of exclusive or predominant peri-implantitis microbiota. Of 158 potentially eligible articles, data of 64 studies on 3730 samples from peri-implant sites were included in this study. Different assessment methods were described in the studies, namely bacterial culture, PCR-based assessment, hybridization techniques, pyrosequencing, and transcriptomic analyses. After analysis of 13 selected culture-dependent studies, no microbial species were found to be specific for peri-implantitis. After assessment of 28 studies using PCR-based methods and a meta-analysis on 19 studies, a higher prevalence of Aggregatibacter actinomycetemcomitans and Prevotella intermedia (log-odds ratio 4.04 and 2.28, respectively) was detected in peri-implantitis biofilms compared with healthy implants. Actinomyces spp., Porphyromonas spp. and Rothia spp. were found in all five pyrosequencing studies in healthy-, periodontitis-, and peri-implantitis samples. In conclusion, the body of evidence does not show a consistent specific profile. Future studies should focus on the assessment of sites with different diagnosis for the same patient, and investigate the complex host-biofilm interaction.
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Affiliation(s)
- Philipp Sahrmann
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland; (F.G.); (T.A.); (P.R.S.); (L.K.)
- Correspondence: ; Tel.: +41-44-634-3412
| | - Fabienne Gilli
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland; (F.G.); (T.A.); (P.R.S.); (L.K.)
| | - Daniel B. Wiedemeier
- Statistical Services, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland;
| | - Thomas Attin
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland; (F.G.); (T.A.); (P.R.S.); (L.K.)
| | - Patrick R. Schmidlin
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland; (F.G.); (T.A.); (P.R.S.); (L.K.)
| | - Lamprini Karygianni
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland; (F.G.); (T.A.); (P.R.S.); (L.K.)
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Khan M, Alkhathlan HZ, Khan ST. Antibiotic and Antibiofilm Activities of Salvadora persica L. Essential Oils against Streptococcus mutans: A Detailed Comparative Study with Chlorhexidine Digluconate. Pathogens 2020; 9:pathogens9010066. [PMID: 31963342 PMCID: PMC7169458 DOI: 10.3390/pathogens9010066] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/20/2022] Open
Abstract
The use of organic components from plants as an alternative antimicrobial agent is becoming popular due to the development of drug-resistance in various pathogens. Essential oils from fresh (MF-1) and dried (MD-1) roots of Salvadora persica L. were extracted and benzyl isothiocynate was determined as their chief constituent using GC-MS and GC-FID. The antibiofilm and antimicrobial activities of MD-1 and MF-1 against Streptococcus mutans a dental caries causing bacteria were determined using multiple assays. These activities were compared with chlorhexidine digluconate (CHX) and clove oil, well known antimicrobial agents for oral hygiene. Essential oils demonstrated IC50 values (10–11 µg/mL) comparable to that of CHX, showed a significant reduction (82 ± 7–87 ± 6%) of the biofilm formation at a very low concentration. These results were supported by RT-PCR studies showing change in the expression levels of AtlE, gtfB, ymcA and sodA genes involved in autolysis, biofilm formation and oxidative stress, respectively. The results presented in this study show the robust bactericidal and antibiofilm activity of MD-1 and MF-1 against S. mutans which is comparable to Chlorhexidine digluconate. Our results suggest that these essential oils can be as effective as CHX and hence can serve as a good alternative antimicrobial agent for oral hygiene.
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Affiliation(s)
- Merajuddin Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.K.); (H.Z.A.)
| | - Hamad Z. Alkhathlan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.K.); (H.Z.A.)
| | - Shams Tabrez Khan
- Department of Agricultural Microbiology, Aligarh Muslim University, Aligarh 2002002 UP, India
- Correspondence:
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Ben Lagha A, LeBel G, Grenier D. Tart cherry (Prunus cerasus L.) fractions inhibit biofilm formation and adherence properties of oral pathogens and enhance oral epithelial barrier function. Phytother Res 2019; 34:886-895. [PMID: 31846135 DOI: 10.1002/ptr.6574] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/07/2019] [Accepted: 10/17/2019] [Indexed: 12/24/2022]
Abstract
Dental caries, candidiasis, and periodontal disease are the most common oral infections affecting a wide range of the population worldwide. The present study investigated the effects of two tart cherry (Prunus cerasus L.) fractions on important oral pathogens, including Candida albicans, Streptococcus mutans, and Fusobacterium nucleatum, as well as on the barrier function of oral epithelial cells. Procyanidins and quercetin and its derivatives were the most important constituents found in the tart cherry fractions. Although the fractions showed poor antimicrobial activity, they inhibited biofilm formation by the three oral pathogens in a dose-dependent manner. The tart cherry fractions also attenuated the adherence of C. albicans and S. mutans to a hydroxylapatite surface as well as the adherence of F. nucleatum to oral epithelial cells. Treating oral epithelial cells with the tart cherry fractions significantly enhanced the barrier function as determined by monitoring the transepithelial electrical resistance. In conclusion, this study showed that the tart cherry fractions and their bioactive constituents could be promising antiplaque compounds by targeting biofilm formation and adherence properties of oral pathogens. Furthermore, its property of increasing the epithelial barrier function may protect against microbial invasion of the underlying connective tissue.
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Affiliation(s)
- Amel Ben Lagha
- Oral Ecology Research Group, Faculty of Dentistry, Université Laval, Quebec City, Canada
| | - Geneviève LeBel
- Oral Ecology Research Group, Faculty of Dentistry, Université Laval, Quebec City, Canada
| | - Daniel Grenier
- Oral Ecology Research Group, Faculty of Dentistry, Université Laval, Quebec City, Canada
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Golob Deeb J, Smith J, Belvin BR, Lewis J, Grzech-Leśniak K. Er:YAG Laser Irradiation Reduces Microbial Viability When Used in Combination with Irrigation with Sodium Hypochlorite, Chlorhexidine, and Hydrogen Peroxide. Microorganisms 2019; 7:E612. [PMID: 31775309 DOI: 10.3390/microorganisms7120612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/15/2019] [Accepted: 11/23/2019] [Indexed: 12/20/2022] Open
Abstract
The erbium-doped yttrium aluminum garnet (Er:YAG) laser is used to treat periodontal disease; however, its effectiveness at killing oral bacteria is not well known. Furthermore, the compounding effect of the combination of a laser treatment and irrigation methods with antimicrobials on bacterial viability is yet to be determined. The purpose of this in vitro study was to evaluate the effect of the Er:YAG laser with irrigation using chlorhexidine (CHX), hydrogen peroxide (H2O2), or sodium hypochlorite (NaOCl) on the viability of oral bacteria. Three bacterial species were used in our study: Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalis. Bacteria were grown in an anaerobic chamber in brain heart infusion broth and incubated at 37 °C. Bacterial samples with an OD of 0.5 were irradiated with the Er:YAG laser at 2940 nm using a 400-µm Varian tip. The experiment was repeated four times using these parameters: 40 mJ, 40 Hz, and 1.6 W for 20 seconds with the 300 µs short pulse duration in contact mode. Treatment groups consisted of the following: (1) no treatment, (2) 0.5% H2O2 alone, (3) 0.5% NaOCl alone, (4) 0.03% CHX alone, (5) Er:YAG irradiation alone, (6) Er:YAG irradiation with 0.5% H2O2, (7) Er:YAG irradiation with 0.5% NaOCl, and (8) Er:YAG irradiation with 0.03% CHX. Microbial viability was determined through plating and colony counts and calculated into CFU/ml. Statistical analysis was done using a two-tailed paired t-test. The use of the Er:YAG laser alone failed to show statistically significant antibacterial activity against any of bacteria. The most effective mono-treatment with irrigation solutions for all three bacteria were 0.5% H2O2 and 0.5% NaOCl (p < 0.001 for each solution). Irrigation with 0.03% CHX was most effective against F. nucleatum (p < 0.01) and less against P. gingivalis and S. gordonii and showed the least antibacterial action alone but improved significantly in combination therapy (p < 0.05). The combined treatment with the Er:YAG showed the greatest and most significant improvement in the reduction of bacterial viability compared to any other treatment group (p < 0.05 for each combined treatment). Irradiation with the Er:YAG laser with the addition of 0.5% H2O2, 0.5% NaOCl, or 0.03% CHX under a short working time (20 s) resulted in a significant reduction of bacterial viability for all three bacterial species compared with any single treatment option. The combination of irradiation with the Er:YAG laser with the addition of 0.5% H2O2, 0.5% NaOCl, or 0.03% CHX resulted in a larger reduction of bacterial survival when compared to monotherapies with antimicrobial solutions or laser. The combination of the Er:YAG laser with a low concentration irrigant solution of 0.5% H2O2, 0.5% NaOCl, or 0.03% CHX could be an effective treatment protocol for the reduction of periodontal pathogens and thus suitable treatment for non-surgical periodontal therapy.
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Rapone B, Ferrara E, Santacroce L, Cesarano F, Arazzi M, Liberato LD, Scacco S, Grassi R, Grassi FR, Gnoni A, Nardi GM. Periodontal Microbiological Status Influences the Occurrence of Cyclosporine-A and Tacrolimus-Induced Gingival Overgrowth. Antibiotics (Basel) 2019; 8:antibiotics8030124. [PMID: 31438651 PMCID: PMC6784123 DOI: 10.3390/antibiotics8030124] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/13/2019] [Accepted: 08/17/2019] [Indexed: 12/14/2022] Open
Abstract
Immune suppressed renal transplant patients are more prone to developing oral tissue alterations due to medications associated with a pleiotropic set of side effects involving the oral cavity. Drug-induced gingival overgrowth (DIGO) is the most commonly encountered side effect resulting from administration of calcineurin inhibitors such as cyclosporine-A (CsA), the standard first-line treatment for graft rejection prevention in transplant patients. Pathogenesis of gingival overgrowth (GO) is determined by the interrelation between medications and a pre-existing inflammatory periodontal condition, the main modifiable risk factor. Severity of gingival hyperplasia clinical manifestation is also related to calcium channel blocker association, frequently provided in addition to pharmacological therapy of transplant recipients. Specifically, nifedipine-induced enlargements have a higher prevalence rate compared to amlodipine-induced enlargements; 47.8% and 3.3% respectively. Available epidemiological data show a gender difference in prevalence, whereby males are generally more frequently affected than females. The impact of GO on the well-being of an individual is significant, often leading to complications related to masticatory function and phonation, a side effect that may necessitate switching to the tacrolimus drug that, under a similar regimen, is associated with a low incidence of gingival lesion. Early detection and management of GO is imperative to allow patients to continue life-prolonging therapy with minimal morbidity. The purpose of this study was threefold: firstly, to determine the prevalence and incidence of GO under the administration of CsA and Tacrolimus; secondly, to assess the correlation between periodontal status before and after periodontal therapy and medications on progression or recurrence of DIGO; and finally, to analyse the effect of immunosuppressant in association to the channel blocker agents on the onset and progression of gingival enlargement. We compared seventy-two renal transplant patients, including 33 patients who were receiving CsA, of which 25% were also receiving nifedipine and 9.72% also receiving amlodipine, and 39 patients who were receiving tacrolimus, of which 37.5% were also receiving nifedipine and 5.55% also receiving amlodipine, aged between 35 and 60 years. Medical and pharmacological data were recorded for all patients. Clinical periodontal examination, in order to establish the inflammatory status and degree of gingival enlargement, was performed at baseline (T0), 3 months (T1), 6 months (T2), and 9 months (T3). All patients were subjected to periodontal treatment. Statistically significant correlation between the reduction of the mean value of periodontal indices and degree of gingival hyperplasia at the three times was revealed. The prevalence of GO in patients taking cyclosporine was higher (33.3%) in comparison with those taking tacrolimus (14.7%). In accordance with previous studies, this trial highlighted the clinical significance of the pathological substrate on stimulating drug-induced gingival lesion, confirming the key role of periodontal inflammation in pathogenesis of gingival enlargement, but did not confirm the additional effect of calcium-channel blocker drugs in inducing gingival enlargement.
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Affiliation(s)
- Biagio Rapone
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, "Aldo Moro" University of Bari, 70122 Bari, Italy.
| | - Elisabetta Ferrara
- Complex Operative Unit of Nephrology and Dialysis, Hospital S.S. Annunziata, 66100 Chieti, Italy
| | - Luigi Santacroce
- Ionian Department (DJSGEM), "Aldo Moro" University of Bari, 70122 Bari, Italy.
| | - Francesca Cesarano
- Department of Dental and Maxillofacial Sciences, "Sapienza" University of Rome, 00100 Rome, Italy
| | - Marta Arazzi
- Complex Operative Unit of Nephrology and Dialysis, Hospital S.S. Annunziata, 66100 Chieti, Italy
| | - Lorenzo Di Liberato
- Complex Operative Unit of Nephrology and Dialysis, Hospital S.S. Annunziata, 66100 Chieti, Italy
| | - Salvatore Scacco
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, "Aldo Moro" University of Bari, 70122 Bari, Italy
| | - Roberta Grassi
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Felice Roberto Grassi
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, "Aldo Moro" University of Bari, 70122 Bari, Italy
| | - Antonio Gnoni
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, "Aldo Moro" University of Bari, 70122 Bari, Italy
| | - Gianna Maria Nardi
- Department of Dental and Maxillofacial Sciences, "Sapienza" University of Rome, 00100 Rome, Italy
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Puttipan R, Chansakaow S, Khongkhunthian S, Okonogi S. Caesalpinia sappan: A promising natural source of antimicrobial agent for inhibition of cariogenic bacteria. Drug Discov Ther 2019; 12:197-205. [PMID: 30224592 DOI: 10.5582/ddt.2018.01035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
From the previous findings, the ethanolic fractionated extract of Caesalpinia sappan (F-EtOH) has high activity against Streptococcus mutans, the most severe cariogenic bacteria. The present study was aimed to isolate and identify the active compound of F-EtOH and compare its inhibitory activity against the biofilm of S. mutans as well as the cytotoxicity to oral fibroblast cells with F-EtOH. Compound isolation was done by column chromatography. The active compound was identified using liquid chromatography-mass spectrometry with electrospray ionization and nuclear magnetic resonance spectroscopy. It was found that the major compound of F-EtOH is brazilin. F-EtOH and brazilin were compared for inhibitory potential on the biofilms of three strains of S. mutans. The results exhibited that both F-EtOH and brazilin had potential on inhibiting biofilm formation and eradicating the preformed biofilms and their activity was dose dependent. F-EtOH showed significantly less toxic to normal periodontal ligament fibroblast than brazilin. At low concentration of 1- and 2-MBC, F-EtOH showed higher effective than brazilin. The results of our study suggest that the antibacterial activity of F-EtOH is according to the synergistic effects of the existing compounds including brazilin in F-EtOH.
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Affiliation(s)
- Rinrampai Puttipan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University
| | - Sunee Chansakaow
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University
| | - Sakornrat Khongkhunthian
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University.,Research Center of Pharmaceutical Nanotechnology, Chiang Mai University
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University.,Research Center of Pharmaceutical Nanotechnology, Chiang Mai University
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Mohammed HA, Abdel-Aziz MM, Hegazy MM. Anti- Oral Pathogens of Tecoma stans (L.) and Cassia javanica (L.) Flower Volatile Oils in Comparison with Chlorhexidine in Accordance with Their Folk Medicinal Uses. ACTA ACUST UNITED AC 2019; 55:medicina55060301. [PMID: 31238555 PMCID: PMC6631167 DOI: 10.3390/medicina55060301] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/04/2019] [Accepted: 06/18/2019] [Indexed: 01/27/2023]
Abstract
Background and Objectives: Teeth decay and plaque are complicated problems created by oral pathogens. Tecoma stans (L.) and Cassia javanica (L.) are two ornamental evergreen plants widely distributed in Egypt. These plants are traditionally used for oral hygienic purposes. This study aims to elucidate the volatile oil constituents obtained from the flowers of these plants and evaluate the antimicrobial activity of these volatile oils against specific oral pathogens in comparison to chlorhexidine. Materials and Methods: The flowers obtained from both plants were extracted by n-hexane. GC-MS spectrometry was used to identify the constituents. Minimum inhibitory concentrations (MICs) were measured using tetrazolium salt (2,3-bis[2-methyloxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide) (XTT). Results: GC-MS analysis revealed the presence of 32 and 29 compounds, representing 100% of the volatile constituents of Tecoma stans and Cassia javanica, respectively. The GC-MS analysis showed more than 60% of the volatile oil constituents are represented in both plants with different proportions. Chlorhexidine exerted stronger activity than tested plants against all microorganisms. Cassia javanica flower extract was more active against all tested microorganisms than Tecoma stans. Of note was the effect on Streptococcus mutans, which was inhibited by 100% at 12.5 and 25 µg/mL of Cassia javanica and Tecoma stans, respectively. The growth of Lactobacillus acidophilus was also completely inhibited by 25 µg/mL of the Cassia javanica extract. MIC90 and MIC were also calculated, which revealed the superiority of Cassia javanica over Tecoma stans against all tested oral pathogens. Conclusion: Cassia javanica flower volatile oils showed a potential anti-oral pathogen activity at relatively low concentrations. Also, Cassia javanica and Tecoma stans demonstrated a strong activity against tooth decay's notorious bacteria Streptococcus mutans. Both plants can be potential substituents to chlorhexidine. Formulating the constituents of these plants in toothpastes and mouthwashes as anti-oral pathogen preparations can be an interesting future plan.
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Affiliation(s)
- Hamdoon A Mohammed
- Pharmacognosy Department, Faculty of Pharmacy, Al-Azhar University, Cairo 11371, Egypt.
- Medicinal Chemistry and Pharmacognosy Department, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia.
| | - Marwa M Abdel-Aziz
- Regional Centre for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo 11371, Egypt.
| | - Mostafa M Hegazy
- Pharmacognosy Department, Faculty of Pharmacy, Al-Azhar University, Cairo 11371, Egypt.
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Cabral RSC, Alves CCF, Batista HRF, Sousa WC, Abrahão IS, Crotti AEM, Santiago MB, Martins CHG, Miranda MLD. Chemical composition of essential oils from different parts of Protium heptaphyllum (Aubl.) Marchand and their in vitro antibacterial activity. Nat Prod Res 2018; 34:2378-2383. [PMID: 30499330 DOI: 10.1080/14786419.2018.1536659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In Brazilian folk medicine, Protium heptaphyllum is used to treat inflammatory conditions and to hasten wound repair. This paper aims to investigate the chemical composition and the in vitro antibacterial effects of the essential oils (EOs) obtained from P. heptaphyllum leaves and ripe and unripe fruits against a representative panel of oral pathogens. The GC-FID and GC-MS analysis revealed that the major components determined in P. heptaphyllum essential oils were myrcene (59.0%), β-elemene (17.2%), limonene (12.9%), spathulenol (12.6%), α-cubebene (11.6%), germacrene D (10.6%), trans-nerolidol (9.8%), and α-cadinol (8.8%). The essential oils of the ripe and unripe fruits showed the strongest antibacterial activity against the anaerobic bacteria Prevotella nigrescens (MIC = 50 µg/mL). The leaf essential oil displayed very promising activity against Streptococcus mutans (MIC = 50 µg/mL) and Streptococcus mitis (MIC = 62.5 µg/mL). The antibacterial activity of EOs against oral pathogens is also described for the first time. [Formula: see text].
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Affiliation(s)
- Rodrigo S C Cabral
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rio Verde, GO, Brazil
| | - Cassia C F Alves
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rio Verde, GO, Brazil
| | - Hellen R F Batista
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rio Verde, GO, Brazil
| | - Wendel C Sousa
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Rio Verde, GO, Brazil
| | - Isabela S Abrahão
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Antônio E M Crotti
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Mariana B Santiago
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Carlos H G Martins
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, Brazil
| | - Mayker L D Miranda
- Instituto Federal de Educação, Ciência e Tecnologia do Triângulo Mineiro, Uberlândia, MG, Brazil
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Valerino-Díaz AB, Gamiotea-Turro D, Zanatta AC, Vilegas W, Gomes Martins CH, de Souza Silva T, Rastrelli L, Campaner Dos Santos L. New Polyhydroxylated Steroidal Saponins from Solanum paniculatum L. Leaf Alcohol Tincture with Antibacterial Activity against Oral Pathogens. J Agric Food Chem 2018; 66:8703-8713. [PMID: 30048138 DOI: 10.1021/acs.jafc.8b01262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Solanum paniculatum L. is widely used in Brazilian folk medicine for the treatment of liver and gastrointestinal disorders as well as for culinary purposes and beverage production. Fractionation of hydroalcoholic [ethanol (EtOH) 70%] tincture from S. paniculatum leaves led to the isolation of six new spirostanic saponins which included 6- O-α-l-rhamnopyranosyl-(1''→3')-β-d-quinovopyranosyl-(22 S,23 R,25 S)-3β,6α,23-trihydroxy-5α-spirostane (1), 6- O-β-d-xylopyranosyl-(1''→3')-β-d-quinovopyranosyl-(22 S,23 R,25 R)-3β,6α,23-trihydroxy-5α-spirostane (4), 3- O-α-l-rhamnopyranosyl-(1''→3')-β-d-quinovopyranosyl-(22 S,23 S,25 R)-3β,6α,23-trihydroxy-5α-spirostane (5), 3- O-β-d-xylopyranosyl-(1''→3')-β-d-quinovopyranosyl-(22 S,23 S,25 R)-3β,6α,23-trihydroxy-5α-spirostane (6), 6- O-α-l-rhamnopyranosyl-(1''→3')-β-d-quinovopyranosyl-(22 S,25 S)-1β,3β,6α-trihydroxy-5α-spirostane (7), and 6- O-β-d-xylopyranosyl-(1''→3')-β-d-quinovopyranosyl-(22 S,25 S)-3β,4β,6α-trihydroxy-5α-spirostane (8) together with two known spirostanic saponins (2, 3). The structures of these compounds were determined by one-dimensional (1D) and two-dimensional (2D) NMR experiments in addition to high-resolution electrospray ionization mass spectrometry (HRESIMS) analyses. The 70% alcohol tincture, used as phytomedicine, exhibited promising activities against oral pathogens, including, Steptococcus sanguinis, St. oralis, St. mutans, St. mitis, and Lactobacillus casei with minimal inhibitory concentration (MIC) values ranging from 6.25 to 50 μg/mL. The saponin fraction, nonetheless, showed lower activity against all the strains tested (from 100 to >400 μg/mL).
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Affiliation(s)
- Alexander B Valerino-Díaz
- Institute of Chemistry , UNESP - São Paulo State University , Rua Prof. Francisco Degni, 55 , 14800-060 Araraquara , São Paulo , Brazil
| | - Daylin Gamiotea-Turro
- Institute of Chemistry , UNESP - São Paulo State University , Rua Prof. Francisco Degni, 55 , 14800-060 Araraquara , São Paulo , Brazil
| | - Ana C Zanatta
- Institute of Chemistry , UNESP - São Paulo State University , Rua Prof. Francisco Degni, 55 , 14800-060 Araraquara , São Paulo , Brazil
| | - Wagner Vilegas
- Institute of Biosciences , UNESP - São Paulo State University , Praça Infante Dom Henrique, s/n , 11330-900 São Vicente , São Paulo , Brazil
| | - Carlos Henrique Gomes Martins
- Laboratory of Research in Applied Microbiology , UNIFRAN - University of Franca , Av. Dr. Armando Salles Oliveira, 201 , 14404-600 Franca , São Paulo , Brazil
| | - Thayná de Souza Silva
- Laboratory of Research in Applied Microbiology , UNIFRAN - University of Franca , Av. Dr. Armando Salles Oliveira, 201 , 14404-600 Franca , São Paulo , Brazil
| | - Luca Rastrelli
- Dipartimento di Farmacia - University of Salerno , Via Giovanni Paolo II , 84084 Fisciano , Salerno , Italy
| | - Lourdes Campaner Dos Santos
- Institute of Chemistry , UNESP - São Paulo State University , Rua Prof. Francisco Degni, 55 , 14800-060 Araraquara , São Paulo , Brazil
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Edmisson JS, Tian S, Armstrong CL, Vashishta A, Klaes CK, Miralda I, Jimenez-Flores E, Le J, Wang Q, Lamont RJ, Uriarte SM. Filifactor alocis modulates human neutrophil antimicrobial functional responses. Cell Microbiol 2018; 20:e12829. [PMID: 29377528 PMCID: PMC5980721 DOI: 10.1111/cmi.12829] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 12/24/2022]
Abstract
Filifactor alocis is a newly appreciated pathogen in periodontal diseases. Neutrophils are the predominant innate immune cell in the gingival crevice. In this study, we examined modulation of human neutrophil antimicrobial functions by F. alocis. Both non-opsonised and serum-opsonised F. alocis were engulfed by neutrophils but were not efficiently eliminated. Challenge of neutrophils with either non-opsonised or serum-opsonised F. alocis induced a minimal intracellular as well as extracellular respiratory burst response compared to opsonised Staphylococcus aureus and fMLF, respectively. However, pretreatment or simultaneous challenge of neutrophils with F. alocis did not affect the subsequent oxidative response to a particulate stimulus, suggesting that the inability to trigger the respiratory response was only localised to F. alocis phagosomes. In addition, although neutrophils engulfed live or heat-killed F. alocis with the same efficiency, heat-killed F. alocis elicited a higher intracellular respiratory burst response compared to viable organisms, along with decreased surface expression of CD35, a marker of secretory vesicles. F. alocis phagosomes remained immature by delayed and reduced recruitment of specific and azurophil granules, respectively. These results suggest that F. alocis withstands neutrophil antimicrobial responses by preventing intracellular ROS production, along with specific and azurophil granule recruitment to the bacterial phagosome.
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Affiliation(s)
- Jacob S. Edmisson
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Shifu Tian
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Cortney L. Armstrong
- Department of Microbiology & Immunology, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Aruna Vashishta
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Christopher K. Klaes
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Irina Miralda
- Department of Microbiology & Immunology, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Emeri Jimenez-Flores
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - Junyi Le
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Qian Wang
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - Richard J. Lamont
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - Silvia M. Uriarte
- Department of Medicine, School of Medicine, University of Louisville, Louisville, KY, USA
- Department of Microbiology & Immunology, School of Medicine, University of Louisville, Louisville, KY, USA
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
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41
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Armstrong CL, Klaes CK, Vashishta A, Lamont RJ, Uriarte SM. Filifactor alocis manipulates human neutrophils affecting their ability to release neutrophil extracellular traps induced by PMA. Innate Immun 2018; 24:210-220. [PMID: 29649915 PMCID: PMC6410572 DOI: 10.1177/1753425918767507] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Neutrophils operate at the site of injury or inflammation in the periodontal
pocket to ensure periodontal health and clearance of bacterial pathogens.
Filifactor alocis is recently identified as a potential
periodontal pathogen, and in this study, we assessed the formation of neutrophil
extracellular traps (NETs), in response to the presence of the
organism. NET formation by human neutrophils was not
induced when challenged with F. alocis, independent of
opsonization, viability, time, or bacterial dose. F. alocis
also failed to induce NETs from TNF-α-primed neutrophils and did not induce the
release of extracellular neutrophil elastase. However, significant NET induction
was observed when neutrophils were challenged with Streptococcus
gordonii or Peptoanaerobacter stomatis, In
addition, co-infection studies revealed that the presence of F.
alocis with S. gordonii or P.
stomatis does not enhance or reduce NETs. Additionally, F.
alocis failed to impact pre-formed NETs induced by either
S. gordonii or P. stomatis. Pretreatment
with F. alocis prior to stimulation with phorbol 12-myristate
13-acetate (PMA), S. gordonii, or P. stomatis
revealed that the bacterium is capable of reducing only PMA but not S.
gordonii or P. stomatis NET formation. These
results indicate that F. alocis manipulates neutrophils,
inhibiting the triggering of NET induction.
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Affiliation(s)
| | | | | | - Richard J Lamont
- 3 Department of Oral Immunology and Infectious Diseases, University of Louisville, USA
| | - Silvia M Uriarte
- 1 Department of Microbiology and Immunology, University of Louisville, USA.,2 Department of Medicine, University of Louisville, USA.,3 Department of Oral Immunology and Infectious Diseases, University of Louisville, USA
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42
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Dias ALB, Batista HRF, Estevam EBB, Alves CCF, Forim MR, Nicolella HD, Furtado RA, Tavares DC, Silva TS, Martins CHG, Miranda MLD. Chemical composition and in vitro antibacterial and antiproliferative activities of the essential oil from the leaves of Psidium myrtoides O. Berg (Myrtaceae). Nat Prod Res 2018; 33:2566-2570. [PMID: 29611435 DOI: 10.1080/14786419.2018.1457664] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In this study, the chemical composition and antibacterial and antiproliferative potential of the essential oil obtained from fresh leaves of Psidium myrtoides (PM-EO) against oral pathogens and human tumour cell lines were investigated for the first time. GC-FID and GC-MS analyses showed that trans-β-caryophyllene (30.9%), α-humulene (15.9%), α-copaene (7.8%), caryophyllene oxide (7.3%) and α-bisabolol (5.3%) are the major constituents of PM-EO. The antibacterial activity of PM-EO against a panel of oral pathogens was investigated in terms of their minimal inhibitory concentrations (MIC) using the broth microdilution method. PM-EO displayed moderate activity against Streptococcus mitis (MIC = 100 μg/mL), S. sanguinis (MIC = 100 μg/mL), S. sobrinus (MIC = 250 μg/mL), and S. salivarius (MIC = 250 μg/mL), and strong activity against S. mutans (MIC = 62.5 μg/mL). The antiproliferative activity in normal (GM07492A, lung fibroblasts) and tumour cell lines (MCF-7, HeLa, and M059 J) was performed using the XTT assay. PM-EO showed 50% inhibition of normal cell growth at 359.8 ± 6.3 μg/mL. Antiproliferative activity was observed against human tumour cell lines, with IC50 values significantly lower than that obtained for the normal cell line, demonstrating IC50 values for MCF-7 cells (254.5 ± 1.6 μg/mL), HeLa cells (324.2 ± 41.4 μg/mL) and M059 J cells (289.3 ± 10.9 μg/mL). Therefore, the cytotoxicity of PM-EO had little influence on the antibacterial effect, since it showed antibacterial activity at lower concentrations. Our results suggest that PM-EO is a promising source of new antibacterial and antitumour agents.
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Affiliation(s)
- Alline L B Dias
- a Instituto Federal de Educação, Ciência e Tecnologia Goiano , Rio Verde , Brazil
| | - Hellen R F Batista
- a Instituto Federal de Educação, Ciência e Tecnologia Goiano , Rio Verde , Brazil
| | | | - Cassia C F Alves
- a Instituto Federal de Educação, Ciência e Tecnologia Goiano , Rio Verde , Brazil
| | - Moacir R Forim
- b Departamento de Química , Universidade Federal de São Carlos , São Carlos , Brazil
| | - Heloiza D Nicolella
- c Núcleo de Pesquisas em Ciências Exatas e Tecnológicas , Universidade de Franca , Franca , Brazil
| | - Ricardo A Furtado
- c Núcleo de Pesquisas em Ciências Exatas e Tecnológicas , Universidade de Franca , Franca , Brazil
| | - Denise C Tavares
- c Núcleo de Pesquisas em Ciências Exatas e Tecnológicas , Universidade de Franca , Franca , Brazil
| | - Thayna S Silva
- c Núcleo de Pesquisas em Ciências Exatas e Tecnológicas , Universidade de Franca , Franca , Brazil
| | - Carlos H G Martins
- c Núcleo de Pesquisas em Ciências Exatas e Tecnológicas , Universidade de Franca , Franca , Brazil
| | - Mayker L D Miranda
- d Instituto Federal de Educação, Ciência e , Tecnologia do Sul de Minas Gerais , Pouso Alegre , Brazil
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43
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Bodiba DC, Prasad P, Srivastava A, Crampton B, Lall NS. Antibacterial Activity of Azadirachta indica, Pongamia pinnata, Psidium guajava, and Mangifera indica and their mechanism of action against Streptococcus mutans. Pharmacogn Mag 2018; 14:76-80. [PMID: 29576705 PMCID: PMC5858246 DOI: 10.4103/pm.pm_102_17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/13/2017] [Indexed: 11/09/2022] Open
Abstract
Background: Curative plants have reportedly been used to make chewing sticks/toothbrushes intended for the treatment of oral diseases. Objective: The in vitro antibacterial activities of Azadirachta indica, Pongamia pinnata, Psidium guajava, and Mangifera indica were evaluated against Streptococcus mutans, along with the cytotoxicity and antioxidant and synergistic potentials. The effect of M. indica on the expression of crucial virulence genes spaP and gtfB of S. mutans was determined. Materials and Methods: The antibacterial activity was determined using a modified microdilution method. The antioxidant potential was evaluated using diphenyl picrylhydrazyl (DPPH), Griess reagent, and nitroblue tetrazolium calorimetric assays. The synergistic activity was investigated using a modified checkerboard method, while the cytotoxicity was determined according to a cell proliferation 2,3-Bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide salt assay. Reverse transcription was the chosen method for determining the difference in expression of the spaP and gtfB genes after treatment with the plant sample. Results: M. indica and A. indica had the highest antibacterial activity at concentrations of 0.3 mg/ml and 6.25 mg/ml, respectively. A. indica had the best free radical scavenging of DPPH, exhibiting 50% inhibition at 28.72 μg/ml; while M. indica showed better superoxide scavenging potential than the positive control quercetin. Both M. indica and A. indica had adequate activity against the nitric oxide-free radical (12.87 and 18.89 μg/ml, respectively). M. indica selectively reduced the expression of the gtfB gene, indicating a mechanism involving Glucotranferases, specifically targeting bacterial attachment. SUMMARY Mangifera indica and Azadirachta indica had very good antibacterial activity against Streptococcus mutans and moderate toxicity against Vero cells M. indica had the best antioxidant capacity overall M. indica reduced the expression of gtfB gene at 0.5 mg/ml.
Abbreviations used: AA: Ascorbic acid; BHI: Brain–heart infusion; CHX: Chlorhexidine; DPPH: Diphenyl picrylhydrazyl; DMSO: Dimethlysulfoxide; NBT: Nitroblue tetrazolium; NO: Nitric oxide;
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Affiliation(s)
- Dikonketso Cathrine Bodiba
- Department of Integrated Plant and Soil Sciences (Medicinal Plant Sciences), Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
| | - Preety Prasad
- Department of Integrated Plant and Soil Sciences (Medicinal Plant Sciences), Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa.,Department of Botany, St. Xavier's College, Ranchi, Jharkhand, India
| | - Ajay Srivastava
- Department of Integrated Plant and Soil Sciences (Medicinal Plant Sciences), Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa.,Department of Botany, St. Xavier's College, Ranchi, Jharkhand, India
| | - Brigdet Crampton
- Department of Integrated Plant and Soil Sciences (Medicinal Plant Sciences), Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
| | - Namrita Sharan Lall
- Department of Integrated Plant and Soil Sciences (Medicinal Plant Sciences), Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
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44
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Abstract
The aerosol produced during the use of dental instruments can spread pathogens potentially harmful to health. Most of the pathogens found in hydraulic system are Gram-negative aerobic heterotrophic environmental bacterial species exhibiting very low pathogenicity, although they may be of concern in the treatment of vulnerable patients, such as immunocompromised, medically compromised individuals and dental team. Dental team can be exposed to pathogenic microorganisms including cytomegalovirus, hepatitis B virus, hepatitis C virus, herpes simplex virus and Legionella spp. Legionella spp. are ubiquitous in hydraulic system, in fact surveys have shown that the percentage of samples taken at different dental chairs that were positive for Legionella spp. and ranged from 0 to 100%. The concentration of Legionella spp. in hydraulic system may reach 1000 organisms per ml. The primary route of Legionella spp. transmission is inhalation or aspiration of environmentally contaminated aerosols. All dentists are required to conduct a statutory risk assessment of their hydraulic system, in fact to comply with their legal duties, dentists must identify and assess the sources of risk and prepare a scheme for preventing and controlling risks. Moreover, they must monitor the quality of their hydraulic system at least annually to ensure that they are "legionellae free".
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Affiliation(s)
- D Lauritano
- Department of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy
| | - M Nardone
- Ministry of Public Health, Rome, Italy
| | - R M Gaudio
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - V Candotto
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - F Carinci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
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45
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Azizan N, Mohd Said S, Zainal Abidin Z, Jantan I. Composition and Antibacterial Activity of the Essential Oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack against Pathogenic Oral Bacteria. Molecules 2017; 22:molecules22122135. [PMID: 29206142 PMCID: PMC6149972 DOI: 10.3390/molecules22122135] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/27/2017] [Accepted: 11/30/2017] [Indexed: 11/21/2022] Open
Abstract
In this study, the essential oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack were evaluated for their antibacterial activity against invasive oral pathogens, namely Enterococcus faecalis, Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Fusobacterium nucleatum. Chemical composition of the oils was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The antibacterial activity of the oils and their major constituents were investigated using the broth microdilution method (minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC)). Susceptibility test, anti-adhesion, anti-biofilm, checkerboard and time-kill assays were also carried out. Physiological changes of the bacterial cells after exposure to the oils were observed under the field emission scanning electron microscope (FESEM). O. stamineus and F. deltoidea oils mainly consisted of sesquiterpenoids (44.6% and 60.9%, respectively), and β-caryophyllene was the most abundant compound in both oils (26.3% and 36.3%, respectively). Other compounds present in O. stamineus were α-humulene (5.1%) and eugenol (8.1%), while α-humulene (5.5%) and germacrene D (7.7%) were dominant in F. deltoidea. The oils of both plants showed moderate to strong inhibition against all tested bacteria with MIC and MBC values ranging 0.63–2.5 mg/mL. However, none showed any inhibition on monospecies biofilms. The time-kill assay showed that combination of both oils with amoxicillin at concentrations of 1× and 2× MIC values demonstrated additive antibacterial effect. The FESEM study showed that both oils produced significant alterations on the cells of Gram-negative bacteria as they became pleomorphic and lysed. In conclusion, the study indicated that the oils of O. stamineus and F. deltoidea possessed moderate to strong antibacterial properties against the seven strains pathogenic oral bacteria and may have caused disturbances of membrane structure or cell wall of the bacteria.
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Affiliation(s)
- Nuramirah Azizan
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
- Department of Clinical oral Biology, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Shahida Mohd Said
- Department of Periodontology, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Zamirah Zainal Abidin
- Department of Clinical oral Biology, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
| | - Ibrahim Jantan
- Drug and Herbal Research Centre, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia.
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46
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Li Y, Pan J, Ye G, Zhang Q, Wang J, Zhang J, Fang J. In vitro studies of the antimicrobial effect of non-thermal plasma-activated water as a novel mouthwash. Eur J Oral Sci 2017; 125:463-470. [PMID: 29024061 DOI: 10.1111/eos.12374] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate the antimicrobial effects of non-thermal plasma-activated water (PAW) as a novel mouthwash in vitro. Three representative oral pathogens - Streptococcus mutans, Actinomyces viscosus and Porphyromonas gingivalis - were treated with PAW. The inactivation effect was evaluated using the colony-forming unit (CFU) method, and the morphological and structural changes of a cell were observed by scanning electron microscopy and transmission electron microscopy (TEM). The physicochemical properties of PAW were analysed, and its influence on the leakage of intracellular proteins and DNA was evaluated. The results showed significant reduction of Streptococcus mutans within 60 s, of Actinomyces viscosus within 40 s, and of Porphyromonas gingivalis in less than 40 s. Scanning electron microscopy and TEM images showed that the normal cell morphology changed by varying degrees after treatment with PAW. Intracellular proteins (280 nm) and DNA (260 nm) leaked from all three species of bacteria after treatment with PAW. Reactive oxygen species (ROS), especially atomic oxygen (O), hydroxyl radical (˙OH), and hydrogen peroxide (H2 O2 ), were generated and led to strong oxidative stress and cell damage. These results suggest that PAW has potential use as a novel antimicrobial mouthwash.
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Affiliation(s)
- Yinglong Li
- Department of General Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jie Pan
- Department of General Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Guopin Ye
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.,School of Stomatology, Lan Zhou University, Gansu, China
| | - Qian Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Jing Wang
- School of Stomatology, Lan Zhou University, Gansu, China
| | - Jue Zhang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.,College of Engineering, Peking University, Beijing, China
| | - Jing Fang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.,College of Engineering, Peking University, Beijing, China
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47
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Gerits E, Van der Massen I, Vandamme K, De Cremer K, De Brucker K, Thevissen K, Cammue BPA, Beullens S, Fauvart M, Verstraeten N, Michiels J. In vitro activity of the antiasthmatic drug zafirlukast against the oral pathogens Porphyromonas gingivalis and Streptococcus mutans. FEMS Microbiol Lett 2017; 364:fnx005. [PMID: 28087617 DOI: 10.1093/femsle/fnx005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 01/10/2017] [Indexed: 11/13/2022] Open
Abstract
Oral infections are among the most common diseases worldwide. Many protocols for the prevention and treatment of oral infections have been described, yet no golden standard has been developed so far. The antiseptic chlorhexidine and antibiotics are often used in these treatment procedures. However, long-term use of chlorhexidine can lead to side effects and extensive use of antibiotics can promote the development of antibiotic-resistant bacteria, which in turn can compromise the effectiveness of the treatment. Consequently, it remains important to search for new antibacterial agents for the treatment of oral infections. In this study, we report on the antibacterial activity of the antiasthma drug zafirlukast against oral pathogens Porphyromonas gingivalis and Streptococcus mutans. Furthermore, its activity against oral biofilms grown on titanium surfaces was confirmed. In addition, we demonstrated that zafirlukast displays no cytotoxicity against human osteoblasts. Combined, this study paves the way for further research to determine the potential of zafirlukast to be used as a new antibiotic against oral pathogens.
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Affiliation(s)
- Evelien Gerits
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
| | - Isolde Van der Massen
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
| | - Katleen Vandamme
- UZ Leuven, Restorative Dentistry- KU Leuven, BIOMAT, Department of Oral Health Sciences, 3000 Leuven, Belgium
| | - Kaat De Cremer
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium.,VIB, Department of Plant Systems Biology, 9052 Ghent, Belgium
| | - Katrijn De Brucker
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
| | - Karin Thevissen
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
| | - Bruno P A Cammue
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium.,VIB, Department of Plant Systems Biology, 9052 Ghent, Belgium
| | - Serge Beullens
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
| | - Maarten Fauvart
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium.,IMEC, Smart Systems and Emerging Technologies Unit, Department of Life Science Technologies, 3001 Leuven, Belgium.,Smart Systems and Emerging Technologies Unit, Department of Life Science Technologies, imec, Leuven, Belgium
| | - Natalie Verstraeten
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
| | - Jan Michiels
- KU Leuven, Centre of Microbial and Plant Genetics, Department of Microbial and Molecular Systems, 3001 Leuven, Belgium
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48
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Ko MO, Kim MB, Lim SB. Relationship between Chemical Structure and Antimicrobial Activities of Isothiocyanates from Cruciferous Vegetables against Oral Pathogens. J Microbiol Biotechnol 2017; 26:2036-2042. [PMID: 27586534 DOI: 10.4014/jmb.1606.06008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
We evaluated the potentials of 10 isothiocyanates (ITCs) from cruciferous vegetables and radish root hydrolysate for inhibiting the growth of oral pathogens, with an emphasis on assessing any structure-function relationship. Structural differences in ITCs impacted their antimicrobial activities against oral pathogens differently. The indolyl ITC (indol-3-carbinol) was the most potent inhibitor of the growth of oral pathogens, followed by aromatic ITCs (benzyl ITC (BITC) and phenylethyl ITC (PEITC)) and aliphatic ITCs (erucin, iberin, and sulforaphene). Sulforaphene, which is similar in structure, but has one double bond, showed higher antimicrobial activity than sulforaphane. Erucin, which has a thiol group, showed higher antimicrobial activity than sulforaphane, which has a sulfinyl group. BITC and iberin with a short chain exhibited higher antimicrobial potential than PEITC and sulforaphane with a longer chain, respectively. ITCs have strong antimicrobial activities and may be useful in the prevention and management of dental caries.
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Affiliation(s)
- Mi-Ok Ko
- Department of Food Bioengineering, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Wellbeing Vegetables RIS System, Jeju National University, Jeju 63243, Republic of Korea
| | - Mi-Bo Kim
- Jeju Wellbeing Vegetables RIS System, Jeju National University, Jeju 63243, Republic of Korea.,Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang-Bin Lim
- Department of Food Bioengineering, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Wellbeing Vegetables RIS System, Jeju National University, Jeju 63243, Republic of Korea
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49
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Abstract
Background: Antibacterial treatments currently used for treatment cause several side effects, and bacterial resistance to the antibiotics is also increasing. Therefore, there is need to find better alternatives. Essential oils (EOs) have been used for treatment of various ailments since ancient times and have gained popularity over the years. Safety and efficacy of EOs have been proved by several clinical trials. This review gives an overview on the EOs, their uses, and adverse effects. Materials and Methods: A literature search was performed in the PubMed for clinical trial studies and review articles on EOs published up to February 2015. The search was performed during March 2015. The following keywords were used: “Lavender essential oil,” “cinnamon oil,” “clove oil,” “eucalyptus oil,” “peppermint oil,” “lemon EOs,” and “tea tree oil.” Results: Total 70 relevant articles were found in PubMed database. After screening of abstracts, 52 articles were selected to be included in the present review. Conclusion: On the basis of the available information, it can be concluded that EOs have the potential to be developed as preventive or therapeutic agents for various oral diseases, but further clinical trials are required to establish their safety and efficacy.
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Affiliation(s)
- Namrata Dagli
- Ethics Committee, Care Institute of Medical Sciences, Ahmedabad, Gujarat, India
| | - Rushabh Dagli
- Department of Public Health Dentistry, Vyas Dental College and Hospital, Jodhpur, Rajasthan, India
| | - Rasha Said Mahmoud
- Department of Preventive Dental Science, Alfarabi Colleges, Riyadh, Saudi Arabia
| | - Kusai Baroudi
- Department of Preventive Dental Science, Alfarabi Colleges, Riyadh, Saudi Arabia
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50
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Abstract
This work extends in vitro screening of antimicrobial activity of avarol, the marine natural product firstly isolated from the Mediterranean sponge Dysidea avara. Its anticandidial activity was evaluated by microdilution method against eight Candida strains, two ATCC and six clinical ones. At a different extent this compound was proven to be active against all the strains tested (MIC 0.8-6.0 μg/mL and MFC 1.6-12.0 μg/mL, respectively). According to the best of our knowledge, this is the first report on avarol activity towards any yeast strain which may be of relevance for Alzheimer's disease. Indeed, avarol derivatives showing moderate AChE activity should be screened for anticandidial activity both in vitro and in vivo.
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Affiliation(s)
- Boris Pejin
- a Institute of Biomolecular Chemistry, CNR-ICB , National Research Council of Italy , Pozzuoli-Naples , Italy.,b Department of Life Sciences, Institute for Multidisciplinary Research - IMSI , University of Belgrade , Belgrade , Serbia
| | - Ana Ciric
- c Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research 'Sinisa Stankovic', IBISS , University of Belgrade , Belgrade , Serbia
| | - Dejan Markovic
- d Faculty of Dental Medicine, Department of Pediatric and Preventive Dentistry , University of Belgrade , Belgrade , Serbia
| | - Giuseppina Tommonaro
- a Institute of Biomolecular Chemistry, CNR-ICB , National Research Council of Italy , Pozzuoli-Naples , Italy
| | - Marina Sokovic
- c Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research 'Sinisa Stankovic', IBISS , University of Belgrade , Belgrade , Serbia
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