1
|
de Magalhães Silveira CF, da Silveira Bueno CE, Schreiber AZ. Cytocompatibility and Antibiofilm Activity of Calcium Hydroxide Mixed with Cyperus articulatus Essential Oil and Bio-C Temp Bioceramic Intracanal Medicament. Antibiotics (Basel) 2024; 13:637. [PMID: 39061319 PMCID: PMC11274325 DOI: 10.3390/antibiotics13070637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/02/2024] [Accepted: 06/04/2024] [Indexed: 07/28/2024] Open
Abstract
Calcium hydroxide represents the most commonly used intracanal dressing between sessions; however, it may not be effective against all types of microorganisms. Several compounds of plant origin have attracted increasing attention from researchers in recent years. The objective of this study was to evaluate the cytocompatibility and antimicrobial activity of calcium hydroxide associated with the essential oil of Cyperus articulatus and the new bioceramic intracanal medicament Bio-C Temp®. Five experimental groups were designed: group Ca-C. articulatus essential oil; group CHPG-calcium hydroxide associated with propylene glycol; group CHCa-essential oil of C. articulatus associated with calcium hydroxide; and group U-UltraCal® XS; group BCT-Bio-C Temp®. The control group was a culture medium. Cytocompatibility was assessed by the methyltetrazolium (MTT) assay after exposure of the Saos-2 human osteoblast-like cell line to dilutions of commercial products/associations for 24 h and 72 h. The antimicrobial activity against mature Enterococcus faecalis biofilm was evaluated by the crystal violet assay. All commercial products/associations showed a cell viability similar to or even higher than the control group (p > 0.05) for both periods evaluated. C. articulatus essential oil associated or not with calcium hydroxide showed better antibiofilm capacity. C. articulatus associated or not with calcium hydroxide showed superior cytocompatibility and antimicrobial capacity, representing a promissory intracanal medicament.
Collapse
Affiliation(s)
| | - Carlos Eduardo da Silveira Bueno
- Department of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas 13045-755, SP, Brazil;
| | | |
Collapse
|
2
|
Macambira DVDC, Almeida Júnior JSD, Silveira CFDM, Sarrazin SLF, Moraes TMP, da Silva BA, Minervino AHH, Moraes WP, Barata LES. Antimicrobial Activity on Streptococcus mutans and Enterococcus faecalis of Cyperus articulatus Ethanolic Extracts. PLANTS (BASEL, SWITZERLAND) 2024; 13:689. [PMID: 38475535 DOI: 10.3390/plants13050689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 03/14/2024]
Abstract
Oral diseases are one of the biggest public health problems worldwide, caused by opportunistic pathogens such as Streptococcus mutans and Enterococcus faecalis. Cyperus articulatus (priprioca) is a plant conventionally used in traditional medicine in the Amazon region. However, little is known about the possible dentistry-related uses of extracts from the rhizomes and solid waste generated by the extraction of essential oils from this vegetable. This study aimed to investigate the chemical composition of volatile compounds and antimicrobial activity through the Minimum Inhibitory Concentration test (MIC and assessment of the toxicity by Hens Egg Test-Chorion Allantoic Membrane (HET-CAM) of the ethanolic extracts from Cyperus articulatus intact rhizomes and solid waste. We identified sesquiterpenes as the main constituents, strong antimicrobial activity of the ethanolic extract of intact rhizomes against S. mutans (MIC = 0.29 mg/mL), moderate antimicrobial activity against E. faecalis of the extract obtained from the solid waste (MIC = 1.17 mg/mL), and absence of toxicity for both tested extracts. The absence of irritation and the antibacterial activity of the ethanolic extract from C. articulatus rhizomes and solid waste reveal its potential for use in the alternative control of bacteria that cause oral infections and may present economic viability as a raw material for dental products.
Collapse
Affiliation(s)
| | - José Sousa de Almeida Júnior
- PhD Program Society, Nature and Development, Federal University of Western Pará (PPGSND-UFOPA), Santarém 68040-255, PA, Brazil
- Laboratório de Farmacologia Experimental, Universidade Federal do Oeste do Pará, UFOPA, Santarém 68040-255, PA, Brazil
| | | | | | - Tânia Mara Pires Moraes
- Laboratório de Farmacologia Experimental, Universidade Federal do Oeste do Pará, UFOPA, Santarém 68040-255, PA, Brazil
| | - Bruno Alexandre da Silva
- Programa de Pós-Graduação em Ciências da Saúde, Instituto de Saúde Coletiva da UFOPA, Santarém 68040-255, PA, Brazil
| | | | - Waldiney Pires Moraes
- Laboratório de Farmacologia Experimental, Universidade Federal do Oeste do Pará, UFOPA, Santarém 68040-255, PA, Brazil
| | - Lauro Euclides Soares Barata
- PhD Program Society, Nature and Development, Federal University of Western Pará (PPGSND-UFOPA), Santarém 68040-255, PA, Brazil
| |
Collapse
|
3
|
Bueno-Silva B, Kiausinus KR, Gonçalves FJDS, Moreira MVC, de Oliveira EG, Brugnera Junior A, Feres M, Figueiredo LC. Antimicrobial activity of Desplac® oral gel in the subgingival multispecies biofilm formation. Front Microbiol 2023; 14:1122051. [PMID: 37260680 PMCID: PMC10227524 DOI: 10.3389/fmicb.2023.1122051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/04/2023] [Indexed: 06/02/2023] Open
Abstract
Natural products are well-known due to their antimicrobial properties. This study aimed to evaluate the antimicrobial effect of Desplac® product (composed of Aloe Vera, Propolis Extract, Green Tea, Cranberry, and Calendula) on the subgingival biofilm. Two different protocols were used to treat the 33-species biofilms: (A) 2×/day (12/12 h) for 1 min with Desplac® or Noplak Toothpaste (Chlorhexidine + Cetylpyridinium Chloride) or Oral B ProGengiva (stannous Fluoride) or a placebo gel; (B) a 12-h use of the Desplac® product or 0.12% chlorhexidine gel or a placebo gel. After 7 days of biofilm formation, the metabolic activity (MA) and biofilm profile were determined by 2,3,5-triphenyltetrazolium chloride and Checker-board DNA-DNA hybridization, respectively. Statistical analysis used the Kruskal-Wallis test followed by Dunn's post-hoc. In protocol A, all treatments presented reduced MA compared to the placebo (p ≤ 0.05). The Desplac®-treated biofilm showed a similar microbial profile to other antimicrobials, although with higher bacterial total counts. In protocol B, MA of Desplac®-treated biofilms was lower than the placebo's MA but higher than chlorhexidine-treated biofilms (p ≤ 0.05). Pathogen levels in Desplac®-treated biofilms were lower than in placebo-treated biofilms and elevated compared to the chlorhexidine-treated biofilms (p ≤ 0.05). Desplac® inhibited the biofilm development and disrupted the mature subgingival biofilm, highlighting its effect on Tannerella forsythia counts.
Collapse
Affiliation(s)
| | | | | | | | | | - Aldo Brugnera Junior
- Education College of the European Master in Oral Laser Application (EMDOLA), University of Liège, Liège, Belgium
- Research Collaborator at the IFSC-University of São Paulo (USP), São Paulo, Brazil
| | - Magda Feres
- Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | | |
Collapse
|
4
|
de Assis EL, Silveira FD, da Ponte AVA, Regis RR. A Systematic Review of the Potential Effects of Lippia sidoides on Dental Plaque and Periodontal Diseases. PLANTA MEDICA 2022; 88:341-355. [PMID: 34598290 DOI: 10.1055/a-1554-6947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lippia sidoides is a typical shrub from Brazil that has been used in traditional medicine. This is a systematic review on the effect of L. sidoides for controlling dental plaque, gingivitis, and periodontitis. A database search through May 2021 in Medline/PubMed, SCOPUS, BVS, and Web of Science identified 711 reports of which 17 met our inclusion criteria. Five randomized controlled trials and three animal studies were included that compared L. sidoides-based products (toothpaste, mouthrinse, and gel) to cetylpyridinium chloride, chlorhexidine, and placebo products. Among the human studies, a significant antiplaque effect after treatment with L. sidoides-based products was observed in three studies and an antigingivitis effect in two studies, similar to chlorhexidine-based products. One study found superior dental plaque reduction compared to cetylpyridinium chloride mouthrinse. Only one study testing a L. sidoides gel found no antiplaque effect. Among the animal studies, an L. sidoides mouthrinse significantly reduced calculus in two studies, inflammatory infiltrate in one study, and plaque bacteria and gingivitis in one study. An L. sidoides gel significantly reduced alveolar bone loss and inflammatory response in one study in which mice were submitted to ligature-induced periodontal disease. In general, L. sidoides-based products were effective in reducing dental plaque and calculus formation, as well as clinical signs of gingivitis. As most studies present methodological limitations, these results should be interpreted carefully. Further clinical trials with greater methodological accuracy and control of biases are necessary for the use of L. sidoides-based products in humans to be viable in clinical practice.
Collapse
Affiliation(s)
- Ellen Lima de Assis
- Post-graduation Program, Faculty of Pharmacy, Dentistry, and Nursing, Federal University of Ceara, Fortaleza, Brazil
| | - Felipe Dantas Silveira
- Post-graduation Program, Faculty of Pharmacy, Dentistry, and Nursing, Federal University of Ceara, Fortaleza, Brazil
| | - Alan Victor Araújo da Ponte
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry, and Nursing, Federal University of Ceara, Fortaleza, Brazil
| | - Rômulo Rocha Regis
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry, and Nursing, Federal University of Ceara, Fortaleza, Brazil
| |
Collapse
|
5
|
Alijar Souza M, Petry F, Vidor Morgan L, Dal Magro J, Müller LG. Biological Properties of Aloysia gratissima (Gillies & Hook.) Tronc. (Verbenaceae). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:1119435. [PMID: 35096101 PMCID: PMC8791711 DOI: 10.1155/2022/1119435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/27/2021] [Accepted: 01/05/2022] [Indexed: 11/23/2022]
Abstract
Aloysia gratissima is a plant native to America, with applications in folk medicine for a wide range of diseases, such as bronchial infections, lung disorders, nervous system disorders (depression, anxiety), and inflammatory processes, among others. However, investigations about this species and its biological actions are still scarce. This literature review was carried out using articles published in the past 30 years on the PubMed, SciELO, and Web of Science platforms, with the focus on the method of extraction, chemical composition, and clinical and preclinical studies on the pharmacological properties of A. gratissima. We noticed that the main constituents of A. gratissima are guaiol, pinocamphone, ß-pinene, and 1,8-cineole. Additionally, preclinical studies reveal that A. gratissima extracts present antidepressant, anti-inflammatory, antinociceptive, antibacterial, antifungal, and virucidal effects. The results also demonstrate that there is a greater interest on the part of researchers from 2012 onwards in studying A. gratissima extracts with potential for possible new drugs.
Collapse
Affiliation(s)
- Maryelen Alijar Souza
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó 89809-900, Brazil
| | - Fernanda Petry
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó 89809-900, Brazil
| | - Letícia Vidor Morgan
- Area of Health Sciences, Community University of Chapecó Region (Unochapecó), Chapecó 89809-900, Brazil
| | - Jacir Dal Magro
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó 89809-900, Brazil
| | - Liz G. Müller
- Graduate Program in Environmental Sciences, Community University of Chapecó Region (Unochapecó), Chapecó 89809-900, Brazil
- Area of Health Sciences, Community University of Chapecó Region (Unochapecó), Chapecó 89809-900, Brazil
| |
Collapse
|
6
|
Recent Updates on Microbial Biofilms in Periodontitis: An Analysis of In Vitro Biofilm Models. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1373:159-174. [DOI: 10.1007/978-3-030-96881-6_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
The effect of Brazilian propolis type-3 against oral microbiota and volatile sulfur compounds in subjects with morning breath malodor. Clin Oral Investig 2021; 26:1531-1541. [PMID: 34392403 DOI: 10.1007/s00784-021-04125-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 08/03/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To evaluate propolis type-3 mouthrinse effects on the concentration of volatile sulfur compounds (VSCs) and on tongue dorsum microbial profile. MATERIALS AND METHODS A three-step double-blind, crossover, randomized study with 10 individuals divided into three groups: I-placebo (P); II-ethanolic extract of propolis type-3 3% (EEP); and III-chlorhexidine 0.12% (CHX) and instructed to rinse twice daily for 5 days. Each experimental period was followed by a 21-day washout interval. Morning mouth breath was assessed by VSC concentrations and microbiological samples were obtained from tongue dorsum at baseline and the end of period of rinses and analyzed using checkerboard DNA-DNA hybridization technique for 39 bacterial species. RESULTS CHX and EEP presented the lowest VSC concentration when compared with placebo (p < 0.05). Even in the absence of mechanical plaque control, CHX and EEP treatments reduced VSC levels and there were no statistical differences for VSC measurement between CHX and EEP. There was a significant reduction in mean counts of 10 species including some VSC producers (Prevotella intermedia, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia) by EEP. Total counts of organisms, gram-negative and gram-positive bacterial species showed a decrease for EEP and CHX (p < 0.05). In addition, no statistical difference was observed between EEP and CHX (p > 0.05). A positive correlation was observed between decrease of bacterial counts and decrease of VCSs concentration for the EEP and CHX. CONCLUSIONS The use of a 3% propolis type-3 mouthrinse is an effective way to prevent morning bad breath. Thus, propolis may be a promising agent for the treatment of halitosis. CLINICAL RELEVANCE Propolis type-3 may be used as adjuvant treatment for morning breath malodor.
Collapse
|
8
|
Khan F, Bamunuarachchi NI, Pham DTN, Tabassum N, Khan MSA, Kim YM. Mixed biofilms of pathogenic Candida-bacteria: regulation mechanisms and treatment strategies. Crit Rev Microbiol 2021; 47:699-727. [PMID: 34003065 DOI: 10.1080/1040841x.2021.1921696] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mixed-species biofilm is one of the most frequently recorded clinical problems. Mixed biofilms develop as a result of interactions between microorganisms of a single or multiple species (e.g. bacteria and fungi). Candida spp., particularly Candida albicans, are known to associate with various bacterial species to form a multi-species biofilm. Mixed biofilms of Candida spp. have been previously detected in vivo and on the surfaces of many biomedical instruments. Treating infectious diseases caused by mixed biofilms of Candida and bacterial species has been challenging due to their increased resistance to antimicrobial drugs. Here, we review and discuss the clinical significance of mixed Candida-bacteria biofilms as well as the signalling mechanisms involved in Candida-bacteria interactions. We also describe possible approaches for combating infections associated with mixed biofilms, such as the use of natural or synthetic drugs and combination therapy. The review presented here is expected to contribute to the advances in the biomedical field on the understanding of underlying interaction mechanisms of pathogens in mixed biofilm, and alternative approaches to treating the related infections.
Collapse
Affiliation(s)
- Fazlurrahman Khan
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, South Korea
| | - Nilushi Indika Bamunuarachchi
- Department of Food Science and Technology, Pukyong National University, Busan, South Korea.,Department of Fisheries and Marine Sciences, Ocean University of Sri Lanka, Tangalle, Sri Lanka
| | - Dung Thuy Nguyen Pham
- Center of Excellence for Biochemistry and Natural Products, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam.,NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Nazia Tabassum
- Industrial Convergence Bionix Engineering, Pukyong National University, Busan, South Korea
| | - Mohd Sajjad Ahmad Khan
- Department of Basic Sciences, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Young-Mog Kim
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, South Korea.,Department of Food Science and Technology, Pukyong National University, Busan, South Korea
| |
Collapse
|
9
|
André CB, Rosalen PL, Giannini M, Bueno-Silva B, Pfeifer CS, Ferracane JL. Incorporation of Apigenin and tt-Farnesol into dental composites to modulate the Streptococcus mutans virulence. Dent Mater 2021; 37:e201-e212. [PMID: 33422299 PMCID: PMC7981265 DOI: 10.1016/j.dental.2020.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/05/2020] [Accepted: 12/22/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The aim of this in vitro study was to incorporate two anti-caries agents, Apigenin and tt-Farnesol, to resin composite and resin cement to reduce the virulence of Streptococcus mutans around dental restorations. METHODS Apigenin (Api, 5 mM) and tt-Farnesol (Far, 5 mM) were added alone, together, and combined with fluoride (F). Biofilm of S. mutans was grown on composite discs, and the dry-weight, bacterial viability, and the polysaccharides (alkali-soluble, intracellular and water-soluble) were quantified. CLSM images of the S. mutans biofilm were obtained after three years of water-storage. The effect of the additions on the physicochemical properties and the composite colorimetric parameters were also analyzed. RESULTS The additions did not affect bacterial viability. Api alone and combined with Far or combined with Far and F decreased the bacterial dry-weight, alkali-soluble and intracellular polysaccharides. After three years, the composites containing the additions presented a greater EPS matrix on the top of biofilm. Statistical difference was obtained for the degree of conversion; however, the maximum polymerization rate and curing kinetics were unaffected by the additions. No difference was observed for the water-soluble polysaccharides, flexural strength, and elastic modulus. Api increased the yellowness of the composites. SIGNIFICANCE Api, alone and combined, reduced the expression of virulence of S. mutans without jeopardizing the physicochemical properties of the composites.
Collapse
Affiliation(s)
- Carolina Bosso André
- Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
| | - Pedro Luiz Rosalen
- Department of Biosciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil; Biological Sciences Graduate Program, Federal University of Alfenas, Alfenas, MG, Brazil.
| | - Marcelo Giannini
- Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.
| | - Bruno Bueno-Silva
- Dental Research Division, School of Dentistry, Guarulhos University, Guarulhos, SP, Brazil.
| | - Carmem Silvia Pfeifer
- Department of Biomaterials and Biomechanics, School of Dentistry, Oregon Health & Science University, Portland, OR, USA.
| | - Jack Liborio Ferracane
- Department of Biomaterials and Biomechanics, School of Dentistry, Oregon Health & Science University, Portland, OR, USA.
| |
Collapse
|
10
|
Contribution of Essential Oils to the Fight against Microbial Biofilms—A Review. Processes (Basel) 2021. [DOI: 10.3390/pr9030537] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The increasing clinical use of artificial medical devices raises the issue of microbial contamination, which is a risk factor for the occurrence of biofilm-associated infections. A huge amount of scientific data highlights the promising potential of essential oils (EOs) to be used for the development of novel antibiofilm strategies. We aimed to review the relevant literature indexed in PubMed and Embase and to identify the recent directions in the field of EOs, as a new modality to eradicate microbial biofilms. We paid special attention to studies that explain the mechanisms of the microbicidal and antibiofilm activity of EOs, as well as their synergism with other antimicrobials. The EOs are difficult to test for their antimicrobial activity due to lipophilicity and volatility, so we have presented recent methods that facilitate these tests. There are presented the applications of EOs in chronic wounds and biofilm-mediated infection treatment, in the food industry and as air disinfectants. This analysis concludes that EOs are a source of antimicrobial agents that should not be neglected and that will probably provide new anti-infective therapeutic agents.
Collapse
|
11
|
Chen J, Chen Z, Yuan K, Huang Z, Mao M. Recombinant bacteriophage T4 Rnl1 impacts Streptococcus mutans biofilm formation. J Oral Microbiol 2020; 13:1860398. [PMID: 33456722 PMCID: PMC7782964 DOI: 10.1080/20002297.2020.1860398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Bacteriophage T4 RNA ligase 1 (T4 Rnl1) can be stably expressed in many bacteria and has been reported to affect the bioactivity of the host bacteria. Recently, we constructed bacteriophage T4 Rnl1 expressing system in Streptococcus mutans, a crucial biofilm-forming and dental caries-causing oral pathogen. Here, we characterized the function of recombinant bacteriophage T4 Rnl1 in biofilm formation of S. mutans. The T4 Rnl1 mutant exhibited similar growth phenotype but resulted in a significant reduction of biofilm biomass compared to wild type strain and empty plasmid carrying strain. The abnormal biofilm of the T4 Rnl1 mutant harbored loose bacterial clusters with defective production and distribution of exopolysaccharides. Moreover, the expression of several biofilm formation-associated genes was dysregulated at mRNA level in the T4 Rnl1 mutant. These results reveal that the bacteriophage T4 Rnl1 exert antibiofilm activities against the cariogenic bacterium S. mutans, which impacts the spatial organization of the exopolysaccharides and further impairs the three-dimensional biofilm architecture. These findings implicate that manipulation of bacteriophage T4 Rnl1, a biological tool used for RNA ligation, will provide a promising approach to cariogenic biofilm control.
Collapse
Affiliation(s)
- Juxiu Chen
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhanyi Chen
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Keyong Yuan
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhengwei Huang
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengying Mao
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai, China.,Department of Endodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
12
|
Cyperus articulatus L. (Cyperaceae) Rhizome Essential Oil Causes Cell Cycle Arrest in the G 2/M Phase and Cell Death in HepG2 Cells and Inhibits the Development of Tumors in a Xenograft Model. Molecules 2020; 25:molecules25112687. [PMID: 32527068 PMCID: PMC7321242 DOI: 10.3390/molecules25112687] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/01/2020] [Accepted: 06/04/2020] [Indexed: 12/21/2022] Open
Abstract
Cyperus articulatus L. (Cyperaceae), popularly known in Brazil as “priprioca” or “piriprioca”, is a tropical and subtropical plant used in popular medical practices to treat many diseases, including cancer. In this study, C. articulatus rhizome essential oil (EO), collected from the Brazilian Amazon rainforest, was addressed in relation to its chemical composition, induction of cell death in vitro and inhibition of tumor development in vivo, using human hepatocellular carcinoma HepG2 cells as a cell model. EO was obtained by hydrodistillation using a Clevenger-type apparatus and characterized qualitatively and quantitatively by gas chromatography coupled to mass spectrometry (GC-MS) and gas chromatography with flame ionization detection (GC-FID), respectively. The cytotoxic activity of EO was examined against five cancer cell lines (HepG2, HCT116, MCF-7, HL-60 and B16-F10) and one non-cancerous one (MRC-5) using the Alamar blue assay. Cell cycle distribution and cell death were investigated using flow cytometry in HepG2 cells treated with EO after 24, 48 and 72 h of incubation. The cells were also stained with May–Grunwald–Giemsa to analyze the morphological changes. The anti-liver-cancer activity of EO in vivo was evaluated in C.B-17 severe combined immunodeficient (SCID) mice with HepG2 cell xenografts. The main representative substances of this EO sample were muskatone (11.6%), cyclocolorenone (10.3%), α-pinene (8.26%), pogostol (6.36%), α-copaene (4.83%) and caryophyllene oxide (4.82%). EO showed IC50 values for cancer cell lines ranging from 28.5 µg/mL for HepG2 to >50 µg/mL for HCT116, and an IC50 value for non-cancerous of 46.0 µg/mL (MRC-5), showing selectivity indices below 2-fold for all cancer cells tested. HepG2 cells treated with EO showed cell cycle arrest at G2/M along with internucleosomal DNA fragmentation. The morphological alterations included cell shrinkage and chromatin condensation. Treatment with EO also increased the percentage of apoptotic-like cells. The in vivo tumor mass inhibition rates of EO were 46.5–50.0%. The results obtained indicate the anti-liver-cancer potential of C. articulatus rhizome EO.
Collapse
|
13
|
Rodrigues MC, Rolim WR, Viana MM, Souza TR, Gonçalves F, Tanaka CJ, Bueno-Silva B, Seabra AB. Biogenic synthesis and antimicrobial activity of silica-coated silver nanoparticles for esthetic dental applications. J Dent 2020; 96:103327. [PMID: 32229160 DOI: 10.1016/j.jdent.2020.103327] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 03/19/2020] [Accepted: 03/21/2020] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVES this study aimed to synthesize AgNPs from green tea (GT) extract, forming GT-AgNPs, and to coat their surfaces with silica, resulting in light-colored Ag@SiO2 nanoparticles. MATERIALS AND METHODS particles were characterized and tested for minimal inhibitory concentration (MIC), biofilm formation against Streptococcus mutans and cytotoxicity evaluation on dental pulp fibroblasts. RESULTS X-ray diffraction (XRD) confirmed the formation of pure AgNPs, whereas energy dispersive X-ray spectroscopy (EDS) mapped their elemental atoms. Dynamic light scattering (DLS) demonstrated formation of particles at nanoscale, with moderate polydispersity and negative zeta potential, in agreement with nanoparticle tracking analysis (NTA) size measurements. Fourier-transformed infrared (FTIR) spectroscopy confirmed the successful condensation of silica, which significantly increased surface area by 50%, as assayed by surface area analysis (BET). Thermogravimetric analysis showed a 18%-mass of silica on the surface of Ag@SiO2NPs. Transmission electron microscopy (TEM) displayed the spherical shape of nanoparticles and average size of 11 nm for GT-AgNPs and Ag@SiO2NPs. Ag@SiO2NPs demonstrated potent antimicrobial action against S. mutans, with MIC determined as 600 μg/mL, and inhibition of approximately 44% (p < 0.05) of biofilm formation. At the MIC concentrations, both NPs did not exhibit cytotoxicity. CONCLUSION Ag@SiO2NPs might have a useful application in dental materials. CLINICAL SIGNIFICANCE The possibility of incorporating antimicrobial properties in restorative materials without compromising esthetics makes the AgNPs@SiO2 NPs promising agents against S. mutans biofilm formation, hence the prevention of dental caries. This represents a great step towards the development of more interactive biomaterials in dentistry to overcome clinical problems.
Collapse
Affiliation(s)
- Marcela Charantola Rodrigues
- Postgraduate Department of Cruzeiro do Sul University (UNICSUL), Galvão Bueno St., 868, 01506-000, São Paulo, SP, Brazil; Municipal University of São Caetano do Sul (USCS), Santo Antônio St., 50, 09521-160, São Caetano do Sul, SP, Brazil.
| | - Wallace Rosado Rolim
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), dos Estados Ave., 5001, 09210-580, Santo André, SP, Brazil
| | - Marina Mariante Viana
- Postgraduate Department of Cruzeiro do Sul University (UNICSUL), Galvão Bueno St., 868, 01506-000, São Paulo, SP, Brazil
| | - Thaís Rodrigues Souza
- Postgraduate Department of Cruzeiro do Sul University (UNICSUL), Galvão Bueno St., 868, 01506-000, São Paulo, SP, Brazil
| | - Flavia Gonçalves
- Ibirapuera University (UNIB), Interlagos Ave., 1329, 04661-100, São Paulo, SP, Brazil
| | - Caio Junji Tanaka
- Dental Research Division, Guarulhos University, Teresa Cristina Square, 229, 07023-070, Guarulhos, SP, Brazil
| | - Bruno Bueno-Silva
- Dental Research Division, Guarulhos University, Teresa Cristina Square, 229, 07023-070, Guarulhos, SP, Brazil
| | - Amedea Barozzi Seabra
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), dos Estados Ave., 5001, 09210-580, Santo André, SP, Brazil
| |
Collapse
|
14
|
Salehi B, Kregiel D, Mahady G, Sharifi-Rad J, Martins N, Rodrigues CF. Management of Streptococcus mutans- Candida spp. Oral Biofilms' Infections: Paving the Way for Effective Clinical Interventions. J Clin Med 2020; 9:E517. [PMID: 32075040 PMCID: PMC7074106 DOI: 10.3390/jcm9020517] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 12/18/2022] Open
Abstract
Oral diseases are considered the most common noncommunicable diseases and are related to serious local and systemic disorders. Oral pathogens can grow and spread in the oral mucosae and frequently in biomaterials (e.g., dentures or prostheses) under polymicrobial biofilms, leading to several disorders such as dental caries and periodontal disease. Biofilms harbor a complex array of interacting microbes, increasingly unapproachable to antimicrobials and with dynamic processes key to disease pathogenicity, which partially explain the gradual loss of response towards conventional therapeutic regimens. New drugs (synthesized and natural) and other therapies that have revealed promising results for the treatment or control of these mixed biofilms are presented and discussed here. A structured search of bibliographic databases was applied to include recent research. There are several promising new approaches in the treatment of Candida spp.-Streptococcus mutans oral mixed biofilms that could be clinically applied in the near future. These findings confirm the importance of developing effective therapies for oral Candida-bacterial infections.
Collapse
Affiliation(s)
- Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran;
| | - Dorota Kregiel
- Department of Environmental Biotechnology, Lodz University of Technology, 90-924 Lodz, Wolczanska 171/173, Poland;
| | - Gail Mahady
- Department of Pharmacy Practice, Clinical Pharmacognosy Laboratories, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, 599 Portage Avenue, Winnipeg, MB R3B 2G3, Canada
| | - Natália Martins
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, Porto 4200-319, Portugal
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto 4200-135, Portugal
| | - Célia F. Rodrigues
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal
| |
Collapse
|
15
|
Fanesi A, Paule A, Bernard O, Briandet R, Lopes F. The Architecture of Monospecific Microalgae Biofilms. Microorganisms 2019; 7:microorganisms7090352. [PMID: 31540235 PMCID: PMC6780892 DOI: 10.3390/microorganisms7090352] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 11/16/2022] Open
Abstract
Microalgae biofilms have been proposed as an alternative to suspended cultures in commercial and biotechnological fields. However, little is known about their architecture that may strongly impact biofilm behavior, bioprocess stability, and productivity. In order to unravel the architecture of microalgae biofilms, four species of commercial interest were cultivated in microplates and characterized using a combination of confocal laser scanning microscopy and FTIR spectroscopy. In all the species, the biofilm biovolume and thickness increased over time and reached a plateau after seven days; however, the final biomass reached was very different. The roughness decreased during maturation, reflecting cell division and voids filling. The extracellular polymeric substances content of the matrix remained constant in some species, and increased over time in some others. Vertical profiles showed that young biofilms presented a maximum cell density at 20 μm above the substratum co-localized with matrix components. In mature biofilms, the maximum density of cells moved at a greater distance from the substratum (30–40 μm), whereas the maximum coverage of matrix components remained in a deeper layer. Carbohydrates and lipids were the main macromolecules changing during biofilm maturation. Our results revealed that the architecture of microalgae biofilms is species-specific. However, time similarly affects the structural and biochemical parameters.
Collapse
Affiliation(s)
- Andrea Fanesi
- Laboratoire Génie des Procédés et Matériaux (LGPM), CentraleSupélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France.
| | - Armelle Paule
- Laboratoire Génie des Procédés et Matériaux (LGPM), CentraleSupélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France.
| | - Olivier Bernard
- Université Côte d'Azur, Inria, BIOCORE, BP 93, 06902 Sophia Antipolis Cedex, France.
| | - Romain Briandet
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France.
| | - Filipa Lopes
- Laboratoire Génie des Procédés et Matériaux (LGPM), CentraleSupélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France.
| |
Collapse
|
16
|
Korsch M, Marten SM, Walther W, Vital M, Pieper DH, Dötsch A. Impact of dental cement on the peri-implant biofilm-microbial comparison of two different cements in an in vivo observational study. Clin Implant Dent Relat Res 2018; 20:806-813. [PMID: 30126038 DOI: 10.1111/cid.12650] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/23/2018] [Accepted: 06/09/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND The type of cement used in cemented fixed implant-supported restorations influences formation of undetected excess cement and composition of the peri-implant biofilm. Excess cement and dysbiosis of the biofilm involve the risk of peri-implant inflammation. PURPOSE The aim of the study was to investigate the impact of two different cements on the peri-implant biofilm and inflammation. MATERIALS AND METHODS In an observational study, the suprastructures of 34 patients with cemented fixed implant-supported restorations were revised. In 20 patients, a methacrylate cement (Premier Implant cement [PIC]) and in 14 patients, a zinc oxide eugenol cement (Temp Bond [TB]) were used. After revision, TB was used for recementation. During revision and follow-up after 1 year, microbial samples were obtained. RESULTS Excess cement was found in 12 (60%) of the 20 patients with PIC. Suppuration was observed in two (25%) implants with PIC without excess cement (PIC-) and in all 12 (100%) implants with PIC and excess cement (PIC+). Implants cemented with TB had neither excess cement nor suppuration. The taxonomic analysis of the microbial samples revealed an accumulation of periodontal pathogens in the PIC patients independent of the presence of excess cement. Significantly, fewer oral pathogens occurred in patients with TB compared to patients with PIC. TB was used in all cases (PIC and TB) for recementation. In the follow-up check, suppuration was not found around any of the implants with PIC-, only around one implant with PIC+ and around one implant with TB. Bacterial species associated with severe periodontal infections that were abundant in PIC- and PIC+ samples before the revision were reduced after 1 year to levels found in the TB samples. CONCLUSIONS The revision and recementation with TB had a positive effect on the peri-implant biofilm in cases with PIC. The cementation of suprastructures on implants with TB is an alternative method to be considered.
Collapse
Affiliation(s)
- Michael Korsch
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany.,Center for Implantology and Oral Surgery, Heidelberg, Germany.,Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, Homburg, Germany
| | - Silke-Mareike Marten
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Winfried Walther
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Marius Vital
- Microbial Interactions and Processes Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dietmar H Pieper
- Microbial Interactions and Processes Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andreas Dötsch
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institute, Karlsruhe, Germany.,Institute of Functional Interfaces, Karlsruhe Institute of Technology, Karlsruhe, Germany
| |
Collapse
|
17
|
Machado-Gonçalves L, Tavares-Santos A, Santos-Costa F, Soares-Diniz R, Câmara-de Carvalho-Galvão L, Martins-de Sousa E, Beninni-Paschoal MA. Effects of Terminalia catappa Linn. Extract on Candida albicans biofilms developed on denture acrylic resin discs. J Clin Exp Dent 2018; 10:e642-e647. [PMID: 30057704 PMCID: PMC6057082 DOI: 10.4317/jced.54776] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 04/26/2018] [Indexed: 11/29/2022] Open
Abstract
Background Considering the prevalence of denture stomatitis and the challenge of controlling this pathology using conventional therapies, natural products have been suggested as important therapeutic alternatives due to their antifungal and anti-biofilm properties. Thus, this study investigated if immersion in Terminalia Catappa Linn. extract (TCE) affects Candida albicans biofilms developed on denture acrylic resin discs. Material and Methods The minimal inhibitory and minimal fungicidal concentrations (MIC and MFC, respectively) tests were performed for TCE against suspensions of C. albicans. For the biofilm assay, discs (10 x 2 mm) were fabricated using a denture acrylic resin with surface roughness standardized. The biofilms were allowed to develop for 24 hours. Then, they were immersed in the following treatments overnight (8 hours): phosphate-buffered saline (PBS, control), TCE at MIC, 5XMIC or 10XMIC. The biofilms were analyzed for cell counts and microscopy. Data were analyzed by ANOVA followed by a Tukey test at a 5% significance level. Results The minimal concentration of TCE required to inhibit C. albicans was 6.25 mg/mL, while MFC was 12.5 mg/mL. Immersion in TCE at MIC was sufficient to reduce 80% of the biofilm viable cells compared to the control group (p< 0.001). Microscopic images confirm that immersion at 5XMIC and 10XMIC had a fungicidal activity with no significant differences between the concentrations regarding viable cells counts (p> 0.05). Conclusions Within the limitations of this study, it was possible to conclude that immersion in TCE reduced the C. albicans biofilms cells developed on the denture acrylic surface. Key words:Terminalia catappa Linn, Biofilm, Candida albicans.
Collapse
Affiliation(s)
| | | | - Fábio Santos-Costa
- Post-Graduate Program in Dentistry, CEUMA University, São Luis, Maranhao, Brazil
| | - Rafael Soares-Diniz
- Post-Graduate Program in Dentistry, CEUMA University, São Luis, Maranhao, Brazil
| | | | | | | |
Collapse
|
18
|
Korsch M, Walther W, Bartols A. Cement-associated peri-implant mucositis. A 1-year follow-up after excess cement removal on the peri-implant tissue of dental implants. Clin Implant Dent Relat Res 2017; 19:523-529. [DOI: 10.1111/cid.12470] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 11/20/2016] [Accepted: 11/22/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Michael Korsch
- Dental Academy for Continuing Professional Development; Karlsruhe Germany
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry; University Hospital, Saarland University; Homburg Germany
- Private practice; Center for Implantology and Oral Surgery; Heidelberg Germany
| | - Winfried Walther
- Dental Academy for Continuing Professional Development; Karlsruhe Germany
| | - Andreas Bartols
- Dental Academy for Continuing Professional Development; Karlsruhe Germany
- Clinic for Conservative Dentistry and Periodontology, School for Dental Medicine; Christian-Albrechts-University Kiel; Kiel Germany
| |
Collapse
|
19
|
Pereira JV, Freires IA, Castilho AR, da Cunha MG, Alves HDS, Rosalen PL. Antifungal potential of Sideroxylon obtusifolium and Syzygium cumini and their mode of action against Candida albicans. PHARMACEUTICAL BIOLOGY 2016; 54:2312-2319. [PMID: 26987037 DOI: 10.3109/13880209.2016.1155629] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Context The emergence of resistant pathogens and toxicity of antifungals have encouraged an active search for novel candidates to manage Candida biofilms. Objective In this study, the little known species Sideroxylon obtusifolium T.D. Penn (Sapotacea) and Syzygium cumini (L.) Skeels (Myrtaceae), from the Caatinga biome in Brazil were chemically characterized and explored for their antifungal potential against C. albicans. Materials and methods We determined the effects of hydroalcoholic extracts/fractions upon fungal growth (minimum inhibitory and fungicidal concentrations, MIC/MFC), biofilm morphology (scanning electron microscopy) and viability (confocal laser scanning microscopy), proposed their mode of action (sorbitol and ergosterol assays), and finally investigated their effects against macrophage and keratinocyte cells in a cell-based assay. Data were analysed using one-way analysis of variance with Tukey-Kramer post-test (α = 0.05). Results The n-butanol (Nb) fraction from S. obtusifolium and S. cumini extract (Sc) showed flavonoids (39.11 ± 6.62 mg/g) and saponins (820.35 ± 225.38 mg/g), respectively, in their chemical composition and demonstrated antifungal activity, with MICs of 62.5 and 125 μg/mL, respectively. Nb and Sc may complex with ergosterol as there was a 4-16-fold increase in MICs in the presence of exogenous ergosterol, leading to disrupted permeability of cell membrane. Deleterious effects were observed on morphology and viability of treated biofilms from concentrations as low as their MICs and higher. Sc was not toxic to macrophages and keratinocytes at these concentrations (p > 0.05), unlike Nb. Conclusions Nb and Sc demonstrated considerable antifungal activity and should be further investigated as potential alternative candidates to treat Candida biofilms.
Collapse
Affiliation(s)
| | - Irlan Almeida Freires
- b Division of Pharmacology, Anesthesiology and Therapeutics, Department of Physiological Sciences , Piracicaba Dental School, University of Campinas , Piracicaba , SP , Brazil
| | - Aline Rogéria Castilho
- b Division of Pharmacology, Anesthesiology and Therapeutics, Department of Physiological Sciences , Piracicaba Dental School, University of Campinas , Piracicaba , SP , Brazil
| | - Marcos Guilherme da Cunha
- b Division of Pharmacology, Anesthesiology and Therapeutics, Department of Physiological Sciences , Piracicaba Dental School, University of Campinas , Piracicaba , SP , Brazil
| | - Harley da Silva Alves
- c Department of Pharmacy , State University of Paraiba , Campina Grande , PB , Brazil
| | - Pedro Luiz Rosalen
- b Division of Pharmacology, Anesthesiology and Therapeutics, Department of Physiological Sciences , Piracicaba Dental School, University of Campinas , Piracicaba , SP , Brazil
| |
Collapse
|
20
|
Isolation of a Novel Phage with Activity against Streptococcus mutans Biofilms. PLoS One 2015; 10:e0138651. [PMID: 26398909 PMCID: PMC4580409 DOI: 10.1371/journal.pone.0138651] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 09/02/2015] [Indexed: 01/21/2023] Open
Abstract
Streptococcus mutans is one of the principal agents of caries formation mainly, because of its ability to form biofilms at the tooth surface. Bacteriophages (phages) are promising antimicrobial agents that could be used to prevent or treat caries formation by S. mutans. The aim of this study was to isolate new S. mutans phages and to characterize their antimicrobial properties. A new phage, ɸAPCM01, was isolated from a human saliva sample. Its genome was closely related to the only two other available S. mutans phage genomes, M102 and M102AD. ɸAPCM01 inhibited the growth of S. mutans strain DPC6143 within hours in broth and in artificial saliva at multiplicity of infections as low as 2.5x10-5. In the presence of phage ɸAPCM01 the metabolic activity of a S. mutans biofilm was reduced after 24 h of contact and did not increased again after 48 h, and the live cells in the biofilm decreased by at least 5 log cfu/ml. Despite its narrow host range, this newly isolated S. mutans phage exhibits promising antimicrobial properties.
Collapse
|
21
|
Freires IA, Denny C, Benso B, de Alencar SM, Rosalen PL. Antibacterial Activity of Essential Oils and Their Isolated Constituents against Cariogenic Bacteria: A Systematic Review. Molecules 2015; 20:7329-58. [PMID: 25911964 PMCID: PMC6272492 DOI: 10.3390/molecules20047329] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 04/04/2015] [Accepted: 04/10/2015] [Indexed: 12/16/2022] Open
Abstract
Dental caries remains the most prevalent and costly oral infectious disease worldwide. Several methods have been employed to prevent this biofilm-dependent disease, including the use of essential oils (EOs). In this systematic review, we discuss the antibacterial activity of EOs and their isolated constituents in view of a potential applicability in novel dental formulations. Seven databases were systematically searched for clinical trials, in situ, in vivo and in vitro studies addressing the topic published up to date. Most of the knowledge in the literature is based on in vitro studies assessing the effects of EOs on caries-related streptococci (mainly Streptococcus mutans) and lactobacilli, and on a limited number of clinical trials. The most promising species with antibacterial potential against cariogenic bacteria are: Achillea ligustica, Baccharis dracunculifolia, Croton cajucara, Cryptomeria japonica, Coriandrum sativum, Eugenia caryophyllata, Lippia sidoides, Ocimum americanum, and Rosmarinus officinalis. In some cases, the major phytochemical compounds determine the biological properties of EOs. Menthol and eugenol were considered outstanding compounds demonstrating an antibacterial potential. Only L. sidoides mouthwash (1%) has shown clinical antimicrobial effects against oral pathogens thus far. This review suggests avenues for further non-clinical and clinical studies with the most promising EOs and their isolated constituents bioprospected worldwide.
Collapse
Affiliation(s)
- Irlan Almeida Freires
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP 13414-903, Brazil.
| | - Carina Denny
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP 13414-903, Brazil.
| | - Bruna Benso
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP 13414-903, Brazil.
| | - Severino Matias de Alencar
- Department of Agri-food Industry, Food and Nutrition, "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, SP 13418-260, Brazil.
| | - Pedro Luiz Rosalen
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, SP 13414-903, Brazil.
| |
Collapse
|