Antibacterial effect of bioactive glasses on clinically important anaerobic bacteria in vitro

2007 ◽  
Vol 19 (2) ◽  
pp. 547-551 ◽  
Author(s):  
Outi Leppäranta ◽  
Minna Vaahtio ◽  
Timo Peltola ◽  
Di Zhang ◽  
Leena Hupa ◽  
...  
Keyword(s):  
Antibacterial Effect ◽  
Anaerobic Bacteria ◽  
Bioactive Glasses

scholarly journals ESTIMATION THE ANTIBACTERIAL EFFECT OF CURCUMIN AND ROSEMARY AMONG PATIENTS WITH DENTAL CARIES IN VITRO

2019 ◽  
pp. 277-279
Author(s):  
EHAN ABDULHADI AL-SHARIFI ◽  
ASIA ABED AL-MAHMOOD ◽  
SUMAYAH AL-MAHMOOD
Keyword(s):  
Dental Caries ◽  
Aqueous Extract ◽  
Antibacterial Agents ◽  
Bacterial Culture ◽  
Antibacterial Effect ◽  
Anaerobic Bacteria ◽  
Oral Bacteria ◽  
Mannitol Salt Agar ◽  
Inhibition Zones

Objective: The aim is to estimate the effect of curcumin and rosemary as antibacterial agents among dental caries cases. Methods: Samples of saliva were randomly collected from 40 patients in Al-Furat General Hospital who attended the hospital from July to September 2018. Swabs were cultured on blood agar at 37°C for 24 h and then subcultured in mannitol salt agar and trypticase soy broth at 37°C for 24 h. Different concentrations of aqueous extract curcumin solution (0.1, 0.3, 0.5, and 1 mg/ml) and rosemary solution (1 g/ml) were prepared and added to the bacterial culture. Later, minimum inhibition zones of the bacterial cultures were determined. Results: The results showed that there were 25 cases of Streptococcus mutans, 10 cases of Staphylococcus aureus, 3 cases of anaerobic bacteria, and 2 cases of normal flora among 40 culturing swabs of bacteria. Aqueous extract of curcumin showed antibacterial effect with concentrations (0.1, 0.3, 0.5, and 1 mg/ml) against oral bacteria; nevertheless, these bacteria were resistant to the aqueous extract of rosemary with concentration 1 g/ml. Conclusion: It can be concluded that curcumin can be an effective antibacterial agent against dental caries disease and its effect increases positively in relation to its concentration. On the other hand, rosemary with 1 g/ml concentration did not show any effect on oral bacteria.

scholarly journals GARLIC EXTRACT EFFICACY AGAINST THE VIABILITY OF ENTEROCOCCUS FAECALIS (IN VITRO)

2019 ◽  
pp. 194-197
Author(s):  
ANDRIANI OCTAVIA ◽  
SARWORINI BAGIO BUDIARDJO ◽  
IKE SITI INDIARTI ◽  
EVA FAUZIAH ◽  
MARGARETHA SUHARSINI ◽  
...  
Keyword(s):  
Enterococcus Faecalis ◽  
Antibacterial Effect ◽  
Primary Root ◽  
Anaerobic Bacteria ◽  
Garlic Extract ◽  
Gram Positive ◽  
Dentinal Tubules ◽  
Significance Level ◽  
Post Hoc

Objective: Enterococcus faecalis, Gram-positive facultative anaerobe capable of invading the dentinal tubules, is resistant to several irrigating solutionsand intracanal medications. Motivated by the antibacterial effect exhibited by garlic extract against a wide variety of Gram-positive and Gram-negativebacteria, as well as anaerobic bacteria such as Lactobacillus and E. faecalis, we aimed in this study to analyze the efficacy of garlic extract against theviability of E. faecalis from clinical isolates of nonvital primary root canals.Methods: We used MTT assay to determine the viability of E. faecalis after exposure to increasing concentrations of garlic extract (10%, 25%, 50%,and 100%) and chlorhexidine (CHX) 2% as a positive control.Results: We performed the analysis using the Kruskal–Wallis test and the post hoc test for multiple comparisons at a 0.05 significance level. At allconcentrations, garlic extracts decreased the viability of E. faecalis. We found no significant differences between the viability values for 25%, 50%,and 100% garlic extracts (p>0.05); however, they were significantly different from the 10% extract and CHX 2% (p<0.05), both with a lower viabilityvalues.Conclusion: Our results showed that garlic extract was effective in decreasing the viability of E. faecalis.

In vitro evaluation of the antibacterial effect of various root canal sealers on selected anaerobic bacteria*

2017 ◽  
Vol 69 (5) ◽  
pp. 521-530
Author(s):  
Małgorzata Pawińska ◽  
Grzegorz Szczurko ◽  
Anna Kieklo ◽  
Elżbieta Łuczaj-Cepowicz ◽  
Grażyna Marczuk-Kolada ◽  
...  
Keyword(s):  
Root Canal ◽  
Antibacterial Effect ◽  
Anaerobic Bacteria ◽  
In Vitro Evaluation ◽  
Root Canal Sealers

scholarly journals Binding to and antibacterial effect of aztreonam, temocillin, gentamicin and tobramycin on human faeces

1985 ◽  
Vol 95 (2) ◽  
pp. 255-263 ◽  
Author(s):  
M. P. Hazenberg ◽  
A. M. Pennock-Schröder ◽  
J. P. van de Merwe
Keyword(s):  
Gastrointestinal Tract ◽  
Antibacterial Effect ◽  
Anaerobic Bacteria ◽  
Selective Decontamination ◽  
Faecal Flora ◽  
Gram Negative ◽  
Human Faeces ◽  
Facultatively Anaerobic ◽  
Facultatively Anaerobic Bacteria

SUMMARYAztreonam, temocillin, gentamicin and tobramycin were studied for their effect on the human faecal florain vitroand for their usefulness for selective decontamination (SD) of the gastrointestinal tract. The sensitivities of the obligately anaerobic flora and the Gram-negative facultatively anaerobic bacteria were determined and the ratio was expressed as SD factor. Tho high SD factor of the flora from most subjects for aztreonam and tobramycin indicates that the drugs are useful for SD in contrast to temocillin and gentamicin. Binding to and subsequent release of tobramycin from faeces are presumed to facilitate the maintenance of adequate concentrations in the intestine despite the discontinuous intake.

In Vitro Activity of New Quinolones against Anaerobic Bacteria

Drugs ◽  
1995 ◽  
Vol 49 (Supplement 2) ◽  
pp. 233-234
Author(s):  
Carl Erik Nord ◽  
Ann Lindmark ◽  
Ingela Persson
Keyword(s):  
Anaerobic Bacteria ◽  
Vitro Activity ◽  
In Vitro Activity ◽  
New Quinolones

scholarly journals Synergistic antibacterial combination of Lavandula latifolia Medik. essential oil with camphor

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nursenem Karaca ◽  
Görkem Şener ◽  
Betül Demirci ◽  
Fatih Demirci
Keyword(s):  
Staphylococcus Aureus ◽  
Essential Oil ◽  
Antibacterial Effect ◽  
Synergistic Effects ◽  
Pharmaceutical Formulations ◽  
Human Pathogens ◽  
Broth Microdilution ◽  
Antibacterial Effects ◽  
Lavandula Latifolia

AbstractCombination of various compounds and essential oils for pharmaceutical formulations withdraw attention. In this present study, it was aimed to evaluate the in vitro potential synergistic antibacterial effect of Lavandula latifolia (spike lavender) essential oil with camphor by using the checkerboard method against the human pathogens; Staphylococcus aureus and Listeria monocytogenes. Pharmacopoeia quality L. latifolia essential oil and racemic camphor were analyzed and verified by GC-FID and GC/MS, simultaneously. In vitro antibacterial activity of essential oil and camphor (MIC range: 0.16–20 mg/mL) and standard antimicrobial clarithromycin (MIC range: 0.125–16 μg/mL) were carried out by broth microdilution against S. aureus and L. monocytogenes standard strains, respectively. Resulting antibacterial effects were evaluated for their fractional inhibitory concentrations (FICs) as antagonistic, additive and synergistic effects. The analytical results showed that the major component of essential oil was linalool (45.2%) and 1,8-cineole (25.6%). Antibacterial effects of essential oil were determined as MIC 1.25–5 mg/mL. As a result of the experiments, L. latifolia essential oil–camphor combinations were identified as “synergistic (FIC ≤ 0.5), and additive (0.5 < FIC ≤ 1)” in the respective combinations, suggesting further evaluation for formulations for potential antimicrobial applications in food and pharmaceuticals.

Preparation and in vitro evaluation of Lithium-doped bioactive glasses for wound healing with nerve repair potential

2021 ◽  
Vol 292 ◽  
pp. 129629
Author(s):  
Rong Wei ◽  
Zhaowenbin Zhang ◽  
Min Xing ◽  
Yanling Zhou ◽  
Jiang Chang
Keyword(s):  
Wound Healing ◽  
Nerve Repair ◽  
Bioactive Glasses ◽  
In Vitro Evaluation

scholarly journals Mesoporous Silica Nanoparticles and Mesoporous Bioactive Glasses for Wound Management: From Skin Regeneration to Cancer Therapy

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3337
Author(s):  
Sara Hooshmand ◽  
Sahar Mollazadeh ◽  
Negar Akrami ◽  
Mehrnoosh Ghanad ◽  
Ahmed El-Fiqi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Skin Regeneration ◽  
Bioactive Molecules ◽  
Wound Management ◽  
Bioactive Glasses ◽  
Wide Range

Exploring new therapies for managing skin wounds is under progress and, in this regard, mesoporous silica nanoparticles (MSNs) and mesoporous bioactive glasses (MBGs) offer great opportunities in treating acute, chronic, and malignant wounds. In general, therapeutic effectiveness of both MSNs and MBGs in different formulations (fine powder, fibers, composites etc.) has been proved over all the four stages of normal wound healing including hemostasis, inflammation, proliferation, and remodeling. The main merits of these porous substances can be summarized as their excellent biocompatibility and the ability of loading and delivering a wide range of both hydrophobic and hydrophilic bioactive molecules and chemicals. In addition, doping with inorganic elements (e.g., Cu, Ga, and Ta) into MSNs and MBGs structure is a feasible and practical approach to prepare customized materials for improved skin regeneration. Nowadays, MSNs and MBGs could be utilized in the concept of targeted therapy of skin malignancies (e.g., melanoma) by grafting of specific ligands. Since potential effects of various parameters including the chemical composition, particle size/morphology, textural properties, and surface chemistry should be comprehensively determined via cellular in vitro and in vivo assays, it seems still too early to draw a conclusion on ultimate efficacy of MSNs and MBGs in skin regeneration. In this regard, there are some concerns over the final fate of MSNs and MBGs in the wound site plus optimal dosages for achieving the best outcomes that deserve careful investigation in the future.

scholarly journals A Novel Design of Tri-Layer Membrane with Controlled Delivery of Paclitaxel and Anti-Biofilm Effect for Biliary Stent Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 486
Author(s):  
Abdelrahman I. Rezk ◽  
Jeesoo Park ◽  
Joon Yeon Moon ◽  
Sunny Lee ◽  
Chan Hee Park ◽  
...  
Keyword(s):  
Sustained Release ◽  
Antibacterial Effect ◽  
Release Profile ◽  
Biliary Stent ◽  
Fickian Diffusion ◽  
Release Mechanism ◽  
Dual Function ◽  
Electrospinning Technique ◽  
Layer Membrane

Here, we developed a novel biliary stent coating material that is composed of tri-layer membrane with dual function of sustained release of paclitaxel (PTX) anticancer drug and antibacterial effect. The advantages of using electrospinning technique were considered for the even distribution of PTX and controlled release profile from the nanofiber mat. Furthermore, film cast method was utilized to fabricate AgNPs-immobilized PU film to direct the release towards the tumor site and suppress the biofilm formation. The in vitro antibacterial test conducted against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria species showed excellent antibacterial effect. The in vitro drug release study confirmed the sustained release of PTX from the tri-layer membrane and the release profile fitted first order with correlation coefficient of R2 = 0.98. Furthermore, the release mechanism was studied using Korsmeyer–Peppas model, revealing that the release mechanism follows Fickian diffusion. Based on the results, this novel tri-layer membrane shows curative potential in clinical development.

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