Antibacterial activity of propolis-based toothpastes for endodontic treatment

This study evaluated the antibacterial activity of propolis-based toothpastes used as intracanal medication in endodontic treatment. The propolis-based toothpastes were prepared using an extract established in previous studies (identified as A70D and D70D). Calcium hydroxide paste was used as a control. The bacteria employed were Streptococcus mutans (ATCC 25175), Staphylococcus aureus (ATCC 6538), Staphylococcus aureus (ATCC 25923), Kocuria rhizophila (ATCC 9341), Escherichia coli (ATCC 10538), Pseudomonas aeruginosa (ATCC 27853), Enterococcus hirae (ATCC 10541), Streptococcus mutans (ATCC 25175). Five field strains isolated from saliva were used: Staphylococcus spp. (23.1 - coagulase positive), Staphylococcus spp. (23.5 - coagulase negative), Staphylococcus spp. (26.1 - coagulase positive), Staphylococcus spp. (26.5 - coagulase negative) and Staphylococcus epidermidis (6epi). The diffusion-well method on double-layer agar was used in a culture medium of Tryptic Soy Agar. The plates were kept at room temperature for two hours to allow the diffusion of pastes in the culture medium, and then incubated at 35º C for twenty-four hours in aerobiosis and in microaerophilia (S. mutans). After this period, the total diameter of the inhibition halo was measured. The results were analyzed by ANOVA analysis of variance, followed by the Tukey test at p<0.05. The propolis-based toothpastes presented antibacterial activity against 83.3% of the analyzed bacteria. For 66.7% of these bacteria, the propolis-based toothpastes exhibited greater antibacterial activity than calcium hydroxide. The present results allow us to conclude that the experimental pastes A70D and D70D showed good activity against aerobic bacteria, proving more effective than calcium hydroxide.

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Antibacterial activity of Magnolia alba flower extracts on Staphylococcus epidermidis and Staphylococcus aureus

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/711/1/012017 ◽

2021 ◽

Vol 711 (1) ◽

pp. 012017

Author(s):

K Khairan ◽

S Septiya ◽

Murniana

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Staphylococcus Epidermidis ◽

And Staphylococcus Aureus

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Some coagulase negative Staphylococcus spp. isolated from buffalo can be misidentified as Staphylococcus aureus by phenotypic and Sa442 PCR methods

BMC Research Notes ◽

10.1186/s13104-018-3449-8 ◽

2018 ◽

Vol 11 (1) ◽

Cited By ~ 7

Author(s):

Camila C. de Almeida ◽

Lucas J. L. Pizauro ◽

Glenn A. Soltes ◽

Durda Slavic ◽

Fernando A. de Ávila ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Coagulase Negative Staphylococcus ◽

Staphylococcus Spp

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Análise Microbiológica em Aparelhos de Celular de Acadêmicos e Professores da Universidade de Cuiabá (UNIC) Campus Primavera do Leste – MT

UNICIÊNCIAS ◽

10.17921/1415-5141.2019v23n2p105-109 ◽

2019 ◽

Vol 23 (2) ◽

pp. 105

Author(s):

Vivian Tallita Pinheiro de Santana ◽

Phelipe Magalhães Duarte ◽

Uvleique Alves Fernandes ◽

Gabriel Moreno Damião ◽

Amanda Lourença Da Silva

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Staphylococcus Epidermidis ◽

Cell Phones ◽

Control Measures ◽

Growth Media ◽

Staphylococcus Lugdunensis ◽

Nutrient Culture ◽

Microbiological Agents ◽

Staphylococcus Spp

Rápidos, portáteis e acessíveis, os aparelhos celulares foram incorporados às atividades e rotinas diárias da população. Diante de tal intimidade, esses aparelhos também passaram a se constituir em um meio de crescimento para agentes microbiológicos comensais e acidentais. Medidas de controle como a adoção de boas práticas de higiene são imprescindíveis para a diminuição da carga microbiológica e, por consequência, decréscimo dos riscos de transmissão destes agentes ao homem, principalmente em imunodeprimidos. Dessa forma, o presente trabalho objetivou identificar os micro-organismos presentes em aparelhos celulares de acadêmicos e professores da Universidade de Cuiabá (UNIC), Campus Primavera do Leste – MT, através de amostragens obtidas de 24 aparelhos de telefones celulares de voluntários. Foram realizadas coletas para cada um dos aparelhos celulares disponibilizados pelos voluntários, através de um swab de transporte. Este foi deslizado na parte externa do aparelho, cobrindo toda a área da tela, conectores e alto-falante e, em seguida, inseridos em meio Stuart e remetidos ao laboratório. Do total de amostras coletadas, 19 (79,1%) apresentaram crescimento bacteriano em meio de cultura nutritivo. Os micro-organismos isolados foram Staphylococcus aureus em seis amostras (31,6%), Staphylococcus lugdunensis em outras seis (31,6%), Staphylococcus epidermidis em três (15,8%), Staphylococcus spp. em três (5,8%) e Escherichia coli em uma (5,2%) das amostras. Diante dos resultados obtidos se pôde constatar que os aparelhos celulares podem atuar como meio de multiplicação microbiológica, assim se deve adotar medidas preventivas de higiene e antissepsia das mãos e destes aparelhos, a fim de evitar a proliferação e veiculação de micro-organismos por meio destes. Palavras-chave: Telefone Celular. Staphylococcus aureus. Escherichia coli. AbstractFast, portable and affordable, mobile phones have been incorporated into the daily activities and routines of the population. Faced with such intimacy, these devices have also become a growth medium for commensal and accidental microbiological agents. Control measures such as the adoption of good hygiene practices are essential to reduce the microbiological load and, consequently, decrease the risks of transmission of these agents to humans, especially in immunosuppressed ones. Thus, the present work aimed to identify the microorganisms present in cell phones of academics and professors of the University of Cuiabá (UNIC), Campus Primavera do Leste - MT, through samples obtained from 24 cell phones of volunteers. The samples were collected for each of the mobile devices made available by the volunteers through a transport swab. This was slid on the external part of the device, covering the entire display area, connectors and speaker, then inserted into Stuart medium and sent to the lab. Of the total samples collected, only 19 (79.1%) showed bacterial growth in nutrient culture medium. Microorganisms isolated from growth media were Staphylococcus aureus in six samples (31.6%), Staphylococcus lugdunensis in six (31.6%), Staphylococcus epidermidis in three (15.8%), Staphylococcus spp. in three (5.8%) and Escherichia coli in one (5.2%) of the samples. Given the results obtained, it can be seen that cell phones can act as a means of microbiological multiplication, so preventive measures of hygiene and antisepsis of hands should be adopted, in order to prevent the proliferation and spread of microorganisms through them . Keyword: Cell Phone. Staphylococcus aureus. Escherichia coli.

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Adherence of Staphylococcus aureus Is Enhanced by an Endogenous Secreted Protein with Broad Binding Activity

Journal of Bacteriology ◽

10.1128/jb.181.9.2840-2845.1999 ◽

1999 ◽

Vol 181 (9) ◽

pp. 2840-2845 ◽

Cited By ~ 101

Author(s):

Marco Palma ◽

Axana Haggar ◽

Jan-Ingmar Flock

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Epithelial Cells ◽

Streptococcus Mutans ◽

Staphylococcus Epidermidis ◽

Plasma Proteins ◽

Binding Activity ◽

Secreted Protein ◽

Α Chain ◽

Oligomeric Forms

ABSTRACT A novel mechanism for enhancement of adherence ofStaphylococcus aureus to host components is described. A secreted protein, Eap (extracellular adherence protein), was purified from the supernatant of S. aureus Newman and found to be able to bind to at least seven plasma proteins, e.g., fibronectin, the α-chain of fibrinogen, and prothrombin, and to the surface ofS. aureus. Eap bound much less to cells ofStaphylococcus epidermidis, Streptococcus mutans, or Escherichia coli. The protein can form oligomeric forms and is able to cause agglutination of S. aureus. Binding of S. aureus to fibroblasts and epithelial cells was significantly enhanced by addition of Eap, presumably due to its affinity both for plasma proteins on the cells and for the bacteria.

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Aktivitas Antibakteri Ekstrak Daun Jarak Pagar (Jatropha Curcas L) Terhadap Staphylococcus Epidermidis Dan Staphylococcus Aureus Secara In Vitro

Interest : Jurnal Ilmu Kesehatan ◽

10.37341/interest.v7i1.70 ◽

2018 ◽

Vol 7 (1) ◽

Author(s):

Susilo Yulianto ◽

Sunarmi Sunarmi

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Jatropha Curcas ◽

Staphylococcus Epidermidis ◽

Leaf Extract ◽

Inhibitory Zone ◽

Zone Diameter ◽

Jatropha Curcas L ◽

Inhibitory Power ◽

And Staphylococcus Aureus

Abstract: Jatropha Leaves, Staphylococcus Epidermidis, Staphylococcus Aureus. Jatropha curcas L leaves contain tannins, saponins and flavonoids. According to some studies, tannins, saponins and flavonoids have antibacterial power. Based on these indications, it is important to do research on antibacterial potency of jatropha leaf extract (Jatropha curcas L) against Staphylococcus epidermidis and Staphylococcus aureus bacteria. The aim of this research is to know Antibacterial Activity of Jatropha curcas L Extract on Staphylococcus epidermidis and Staphylococcus aureus". This research. An experimental study by testing the antibacterial activity of leaf extract and jatropha result of maceration, infundation and reflux as measured by Minimal Inhibitory Concentration (KHM) on growth of Staphylococcus epidermidis and Staphylococcus aureus bacteria. From the results of the research, it was found that the extract of the reflux was brownish green and the characteristic of jatropha leaves. The amount of extract produced was 17.03 g, so the yield was 17.03%. Jatropha leaf extract of maceration has no inhibitory power to S. epidermidis in 4 series concentrations starting from 3.125 ppm to 25.000 ppm. Inhibitory zones begin to appear at concentrations of 50,000 ppm and increase at concentrations of 100,000 ppm. The drag zone diameter in the Jatropha curcas extract of the reflux showed the inhibitory power in all series of concentrations. The smallest inhibitory zone was shown at a concentration of 3,125 ppm (9.33 mm) and increased with increasing concentrations. The diameter of the inhibit zone was greatest at 100,000 ppm concentrations of 22.67 mm. Description of inhibitory zone diameter of methanol leaf extract of jatropha result of maceration and reflux to S. epidermidis. The conclusion of this research is extract of reflux result giving bigger resistance than maceration extract to S. epidermidis and S. aureus. Methanol extract of jatropha from the maceration and reflux have strong antibacterial activity against S. epidermidis and S. aureus but still under Klindamycin.

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Detección fenotípica de susceptibilidad a meticilina, eritromicina y clindamicina en aislados de Staphylococcus spp. de un hospital de Valledupar (Colombia)

Medicina y Laboratorio ◽

10.36384/01232576.61 ◽

2017 ◽

Vol 23 (1-2) ◽

pp. 65-74

Author(s):

Gloria I. Morales-Parra ◽

María C. Yaneth-Giovanetti ◽

Andrés B. Zuleta-Hernández ◽

Marilyn L. Núñez-Carrillo

Keyword(s):

Staphylococcus Aureus ◽

Staphylococcus Epidermidis ◽

Staphylococcus Lugdunensis ◽

Staphylococcus Saprophyticus ◽

Staphylococcus Haemolyticus ◽

Staphylococcus Hominis ◽

Staphylococcus Spp

Introducción: las infecciones por Staphylococcus spp. multirresistentes están asociadas con una mayor morbimortalidad de los pacientes afectados. Objetivo: caracterizar fenotipos de resistencia a meticilina, macrólidos y lincosamidas de 50 aislados de Staphylococcus spp. provenientes de pacientes de un centro hospitalario en la ciudad de Valledupar (Colombia). Materiales y métodos: las pruebas de susceptibilidad a meticilina, eritromicina y clindamicina se realizaron por los métodos de microdilución en caldo y difusión en agar. La resistencia a meticilina se tamizó por la técnica de dilución en agar y la resistencia inducible a clindamicina por la prueba D. Resultados: los aislados de Staphylococcus fueron obtenidos principalmente de heridas (58%) y orinas (12%) y en las áreas de consulta externa (40%), cirugía (24%) y urgencias (10%). Staphylococcus aureus se aisló en un 68%, seguido de Staphylococcus epidermidis (14%), Staphylococcus lugdunensis (8%), Staphylococcus saprophyticus (4%), Staphylococcus haemolyticus (4%) y Staphylococcus hominis (2%). La resistencia a meticilina se encontró en el 36% de los aislados de Staphylococcus aureus y el 8% de los estafilococos coagulasa negativos. Se evidenciaron cinco fenotipos de resistencia; el fenotipo con sensibilidad a eritromicina y clindamicina fue el más frecuente (54%), seguido del de resistencia a ambos antibióticos (14%). La resistencia inducible a clindamicina fue del 12%, encontrándose en el 8% de aislados de Staphylococcus aureus y el 4% de los de Staphylococcus epidermidis. Conclusiones: la prueba D es esencial para detectar el fenotipo de resistencia inducible a clindamicina en aislados de Staphylococcus spp. y evitar su administración frente al inminente fracaso terapéutico.

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Antibacterial Activity of Extract and Fraction From Shitake Mushroom (Lentinula edodes) Against Acne Bacteria

Indonesian Journal of Pharmaceutical Science and Technology ◽

10.24198/ijpst.v6i1.14732 ◽

2018 ◽

Vol 6 (1) ◽

pp. 36

Author(s):

Ika Kurnia Sukmawati ◽

Ari Yuniarto ◽

Widhya Alighita ◽

Ade Zam-zam J

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Ethyl Acetate ◽

Staphylococcus Epidermidis ◽

Propionibacterium Acnes ◽

Ethyl Acetate Fraction ◽

Hexane Fraction ◽

Lentinus Edodes ◽

Shiitake Mushrooms ◽

And Staphylococcus Aureus

Acne is an inflammatory disease that occurs in the skin triggered by the bacteria acne treatment can be done by using natural materials that shiitake mushrooms (Lentinus edodes). This aims of this study were to determining the antibacterial activity of extracts and fractions shiitake mushrooms with broth microdilution method, determining the value of equality shiitake mushrooms with antibacterial comparison and determining the morphological changes of bacteria after exposure to the test sample with a Scanning Electron Microscope (SEM). Tests conducted antibacterial activity against Propionibacterium acnes, Staphylococcus epidermidis and Staphylococcus aureus at concentrations used is 1 ppm, 2 ppm, 4 ppm, 8 ppm, 16 ppm, 32 ppm, 64 ppm, 128 ppm, 256 ppm, 512 ppm. Best MIC value obtained in fraction of ethyl acetate and n-hexane fraction of the bacterium Propionibacterium acnes, Staphylococcus epidermidis and Staphylococcus aureus at a concentration of 256 ppm. KBM value of the n-hexane fraction against Staphylococus aureus bacteria at concentrations of 512 ppm and ethyl acetate fraction against bacteria Staphylococus aureus and epidermidis at a concentration of 512 ppm. Value equality is obtained 1 mg of ethyl acetate fraction of shiitake mushrooms equivalent to 5.346 x 10-2 mg of tetracycline. SEM test results showed the presence of antibacterial activity which is indicated by a change in cell morphology, their lumps and their cell wall frown on Propionibacterium acnes were exposed to ethyl acetate fraction.Key words: Acne, Lentinus edodes, antibacterials, microdilution, SEM

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IN VITRO AND IN SILICO ANTIBACTERIAL ACTIVITY OF 1.5-BIS (3’-ETHOXY-4’-HYDROXYPHENYL)-1-4-PENTADIENE-3-ONE

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2018v10i5.25143 ◽

2018 ◽

Vol 10 (5) ◽

pp. 70

Author(s):

Agus Purwanggana ◽

Esti Mumpuni ◽

Esti Mulatsari

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Minimum Inhibitory Concentration ◽

Staphylococcus Epidermidis ◽

In Silico ◽

Inhibitory Concentration ◽

Inhibition Zone ◽

Antibacterial Study

Objective: The main objective of this research were screened in vitro and in silico of 1,5-bis (3'-ethoxy-4'-hydroxyphenyl)-1,4-pentadiene-3-one as potential antibacterial agents.Methods: The in vitro antibacterial study was carried against Staphylococcus aureus, Staphylococcus epidermidis (gram positive) and Escherichia coli, Salmonella thypi (gram negative) using broth dilution method to determine Minimum Inhibitory Concentration (MIC), disc diffusion method to determine the diameter of inhibition zone. In silico antibacterial study was carried using computational software Protein-Ligand ANT System (PLANTS), computational docking was carried using receptor with Protein Data Bank (PDB) file 3MZD. The structures were optimized prior docking using YASARA, and MarvinSketch. The results of antibacterial testing were compared to two positive control drugs i. e amoxicillin and cefadroxil.Results: In vitro evaluation showed that 1,5-bis (3'-ethoxy-4'-hydroxyphenyl)-1,4-pentadiene-3-one has a better antibacterial activity than amoxicillin and cefadroxil with a Minimum Inhibitory Concentration (MIC) of 0.15 ppm and diameter of inhibition zone of 11.27±0.31, 11.35±0.39, 11.25±0.33, and 11.05±0.45 mm in Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, and Salmonella thypi, respectively. These results in line with in silico evaluation that showed 1,5-bis (3'-ethoxy-4'-hydroxyphenyl)-1,4-pentadiene-3-one has more negative docking score than amoxicillin, cefadroxil, and cloxacillin acyl as a native ligand on the 3MZD receptor.Conclusion: This results obtained in this research work were 1,5-bis (3'-ethoxy-4'-hydroxyphenyl)-1,4-pentadiene-3-one compound potential as an antibacterial agent.

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