scholarly journals Antibacterial Effect of Annona muricata L. Leaves on Streptococcus mutans ATCC 25175 Strains

Author(s):  
Joana L Rodriguez-Perez ◽  
Pablo A Millones-Gomez
2021 ◽  
Vol 18 (10) ◽  
pp. 105601
Author(s):  
Priscila Borges Gobbo De Melo ◽  
João Felipe Besegato ◽  
Adilson César Abreu Bernardi ◽  
Vanderlei Salvador Bagnato ◽  
Alessandra Nara de Souza Rastelli

2020 ◽  
Vol 13 (06) ◽  
pp. 2050022
Author(s):  
Xiaoyue Liang ◽  
Zhaohui Zou ◽  
Zheng Zou ◽  
Changyi Li ◽  
Xiaoxi Dong ◽  
...  

The main objective of this study is to evaluate the antibacterial effect of antibacterial photodynamic therapy (aPDT) on Streptococcus mutans (S. mutans) biofilm model in vitro. The selection of photosensitizers is the key step for the efficacy of photodynamic therapy (PDT). However, no studies have been conducted in the oral field to compare the functional characteristics and application effects of PDT mediated by various photosensitizers. In this research, the antibacterial effect of Methylene blue (MB)/650[Formula: see text]nm laser and Hematoporphyrin monomethyl ether (HMME)/532[Formula: see text]nm laser on S. mutans biofilm was compared under different energy densities to provide experimental reference for the clinical application of the two PDT. The yield of lactic acid was analyzed by Colony forming unit (CFU) and spectrophotometry, and the complete biofilm activity was measured by Confocal Laser Scanning Microscopy (CLSM) to evaluate the bactericidal effect on each group. Based on the results of CFU, the bacterial colonies formed by 30.4[Formula: see text]J/cm2 532[Formula: see text]nm MB-aPDT group and 30.4[Formula: see text]J/cm2 532[Formula: see text]nm HMME-aPDT group were significantly less than those in other groups, and the bacterial colonies in HMME-aPDT group were less than those in HMME-aPDT group. Lactic acid production in all treatment groups except the photosensitizer group was statistically lower than that in the normal saline control group. The activity of bacterial plaque biofilm was significantly decreased in the two groups treated with 30.4[Formula: see text]J/cm2 aPDT. Therefore, aPDT suitable for energy measurement can kill S. mutans plaque biofilm, and MB-aPDT is better than HMME-aPDT.


2015 ◽  
Vol 7 (1) ◽  
pp. 4-4 ◽  
Author(s):  
Mohammad Mehdi Fani ◽  
Abdollah Bazargani ◽  
Mohammad Ali Farboodniay Jahromi ◽  
Zahra Hasanpour ◽  
Khosrow Zamani ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Jorge Jesús Veloz ◽  
Nicolás Saavedra ◽  
Alexis Lillo ◽  
Marysol Alvear ◽  
Leticia Barrientos ◽  
...  

The chemical composition of propolis varies according to factors that could have an influence on its biological properties. Polyphenols from propolis have demonstrated an inhibitory effect onStreptococcus mutansgrowth. However, it is not known if different years of propolis collection may affect its activity. We aimed to elucidate if the year of collection of propolis influences its activity onStreptococcus mutans. Polyphenol-rich extracts were prepared from propolis collected in three different years, characterized by LC-MS and quantified the content of total polyphenols and flavonoids groups. Finally, was evaluated the antibacterial effect onStreptococcus mutansand the biofilm formation. Qualitative differences were observed in total polyphenols, flavones, and flavonols and the chemical composition between the extracts, affecting the strength of inhibition of biofilm formation but not the antimicrobial assays. In conclusion, chemical composition of propolis depends on the year of collection and influences the strength of the inhibition of biofilm formation.


2009 ◽  
Vol 63 (29) ◽  
pp. 2603-2606 ◽  
Author(s):  
L.F. Espinosa-Cristóbal ◽  
G.A. Martínez-Castañón ◽  
R.E. Martínez-Martínez ◽  
J.P. Loyola-Rodríguez ◽  
N. Patiño-Marín ◽  
...  

2018 ◽  
Vol 25 (1) ◽  
Author(s):  
Ahmad Alif Wazir Jumali ◽  
Mieke Hemiawati Satari ◽  
Warta Dewi

Streptococcus mutans is a commensal bacteria of the oral cavity, particularly found in dental plaque attached to the tooth surface, and can also found in the saliva, buccal mucosa, tongue, and the gingival sulcus. Clove cigarette contains the clove oil used worldwide as a herbal remedy for a variety of health disorders due to its antibacterial, antifungal, and antiviral properties. The purpose of this study was to determined the antibacterial effect of the clove oil contained in the clove cigarette towards Streptococcus mutans as a cariogenic bacteria. The research was an experimental laboratory, which tested the sensitivity of the Streptococcus mutans bacteria taken from the saliva of 10 clove cigarette smokers towards the clove oil extract of the clove cigarette in-vitro by using the Kirby-Bauer method. The study showed that the clove oil extract of the clove cigarette which contained eugenol has antibacterial towards the growth of Streptococcus mutans, and there was a difference of the antibacterial activity between clove oil extracted from minced and combusted clove cigarette. The conclusion of this study was the clove oil extracted from minced clove cigarette had a better antibacterial effect than the combusted clove cigarette.


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