scholarly journals Plantas medicinales: Efecto antibacteriano in vitro de Plantago major L, Erythroxylum novogranatense, Plowman var truxillense y Camellia sinensis sobre bacterias de importancia estomatológica

2014 ◽  
Vol 13 (2) ◽  
pp. 21 ◽  
Author(s):  
Verónica Alvarado Villanueva ◽  
Hilda Moromi Nakata
Keyword(s):  
Streptococcus Mutans ◽  
Camellia Sinensis ◽  
Lactobacillus Acidophilus ◽  
Fusobacterium Nucleatum ◽  
Plantago Major ◽  
Prevotella Melaninogenica

El objetivo de la investigación fue comparar la actividad antibacteriana in vitro de los extractos hidroalcohólicos de tres plantas medicinales: Plantago major L. (llantén), Erythroxylum novograntense var truxillense (coca trujillo) y Camellia sinensis (té verde) mediante el método de difusión en agar con discos, sobre cinco cepas patrones de bacterias orales: Streptococcus mutans ATCC 25175, Lactobacillus acidophilus. ATCC 314, Actinomyces viscosus ATCC 15987, Prevotella melaninogenicus ATCC 25845 y Fusobacterium nucleatum ATCC 25586. Se obtuvieron extractos hidroalcohólicos de principios activos totales procedentes de las hojas secas de cada una de las plantas, mediante maceración alcohólica con alcohol etílico al 70 % y posterior evaporación del solvente con el empleo del rotavapor. Cada extracto se diluyó en alcohol etílico al 70 % en las concentraciones de 25 μg/mL y 50 μg/mL. Estas soluciones fueron comparadas con PerioAid® (clorhexidina 0,012 %) como control positivo y con alcohol etílico al 70 %, como control negativo. Al realizar las pruebas de sensibilidad in vitro, se obtuvieron los siguientes resultados: los tres extractos hidroalcohólicos en ambas concentraciones presentaron actividad antibacteriana mayor al alcohol etílico (5,8 mm) y menor que el PerioAid® (22,0 mm) sobre las cinco cepas bacterianas en estudio. La mayor actividad presentó el extracto hidroalcohólico de Camellia sinensis a 50 μg/mL, la menor actividad presento Plantago major a 25 μg/mL. Se concluye que los tres extractos hidroalcohólicos en las diluciones de 25 y 50 μg/mL presentaron actividad antibacteriana sobre Streptococcus mutans, Lactobacillus acidophilus, Actinomyces viscosus, Prevotella melaninogenica y Fusobacterium nucleatum. El efecto antibacteriano aumentó con la concentración en P. melaninogenica, que fue la cepa más sensible y A. viscosus la menos sensible.

scholarly journals Evaluation of Antioxidant and Antimicrobial Efficacy of Camellia Sinensis and Alstonia Scholaris Extracts on Streptococcus Mutans and Lactobacillus Acidophilus - An in Vitro Study.

2021 ◽  
Vol 14 (1) ◽  
pp. 455-465
Author(s):  
Shubhi Goel ◽  
Chandra Shekar B R ◽  
Chandan S
Keyword(s):  
Streptococcus Mutans ◽  
Camellia Sinensis ◽  
Plant Extracts ◽  
Lactobacillus Acidophilus ◽  
In Vitro Study ◽  
Inhibition Zone ◽  
Antimicrobial Efficacy ◽  
Alstonia Scholaris ◽  
Anti Oxidant

Context Dental caries is showing an upward trend in India and there is a need to explore innovative strategies to prevent the disease. Literature evaluating antibacterial activity of Camellia sinensis and Alstonia scholaris plant extracts on Streptococcus mutans and Lactobacillus acidophilus is practically non-existent. Objectives - To assess the minimum inhibitory concentration (MIC) and antimicrobial efficacy of Camellia sinensis and Alstonia scholaris on S. mutans and L. acidophilus. Materials and method: This was an in vitro study carried over a period of three months. The leaves of Camellia sinensis and Alstonia scholaris were collected, and crushed to obtain coarse powder. Plant extraction was performed using Soxhelet appartus. Anti- oxidant assay was performed for both the plant extracts against DPPH radical using Spectrophotometer at 517nm. Inhibition percentage was calculated through absorbance value measured from spectrophotometer. Anti- microbial activity of both the plant extracts against Microbial Type Culture Collection strains of Streptococcus mutans and Lactobacillus acidophilus was assessed using Agar well diffusion method. 0.2% Chlorhexidine was used as positive control and ethanol as negative control. The experiment was performed in triplicates. Mean inhibition zone in each set of experiment was computed using three readings after accounting for well diameter. One Way Analysis of Variance (ANOVA), Tukey’s post hoc test and independent sample‘t’ test were performed to compare the mean inhibition zone. Results: The plant extracts were effective against Streptococcus mutans and Lactobacillus acidophilus. Camellia sinensis at 4% concentration produced a mean inhibition zone of 30.3± 3.9 mm against Streptococcus mutans and 23.8± 2.2 mm against Lactobacillus acidophilus. Alstonia scholaris at 10% concentration produced a mean inhibition zone of 21.6± 2.8 mm against Streptococcus mutans and 24.1± 1.6 mm against Lactobacillus acidophilus. Conclusion: Camellia sinensis and Alstonia scholaris have significant anti- oxidant and anti- microbial property against Streptococcus mutans and Lactobacillus acidophilus.

scholarly journals Atividade antimicrobiana e antibiofilme da Plantago major: uma revisão de literatura

2020 ◽  
Vol 9 (9) ◽  
pp. e496997495
Author(s):  
Mariana Sobreira Bezerra ◽  
Aline Sobreira Bezerra ◽  
Talita Arrais Daniel Mendes ◽  
Natália Franco Brum ◽  
Gabriela Scortegagna de Souza ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Streptococcus Mutans ◽  
Lactobacillus Acidophilus ◽  
Shigella Dysenteriae ◽  
Plantago Major

A Plantago major (PM) é uma planta rica em compostos químicos que garantem a ela um amplo espectro de utilizações ao redor do mundo. Estudos recentes têm avançado ao estudar a relação da planta com atuações antimicrobiana e antibiofilme. Sendo assim, o objetivo do presente estudo é avaliar a atividade antimicrobiana e antibiofilme da espécie Plantago major. Para isso, foi realizada uma busca na literatura nas bases de dados PubMed, LILACS e SciELO, utilizando o termo “Plantago major” em combinação com os descritores MeSH e DeCS “Dentistry” e “Anti-infective agents”, associados entre si pelo operador booleano AND e adaptados para cada base de dados. Além disso, foi feita uma busca complementar no Google Acadêmico. Foi encontrado o total de 130 resultados. Após uma leitura crítica de títulos e resumos, foram selecionados 16 estudos. A revisão inclui estudos publicados nos últimos 20 anos e que abordassem sobre a espécie Plantago major com ação antimicrobiana e antibiofilme na odontologia. A PM apresenta componentes que atuam com potencial antimicrobiano e antibiofilme. O extrato da planta possui espectro de ação in vitro contra Streptococcus mutans, Pseudomonas aeruginosa, Bacillus subtilis, Shigella dysenteriae e Lactobacillus acidophilus. Entretanto, não há um consenso na literatura sobre a ação da PM no crescimento de Candida albicans, Staphylococcus aureus, Porphyromonas gingivalis e Escherichia coli. Assim sendo, a PM apresenta uma boa atuação antimicrobiana in vitro, em bactérias do biofilme, porém são necessários mais estudos para elucidar a ação contra o outras bactérias e aplicabilidade clínica da mesma.

scholarly journals Activity of Human β-Defensin 3 Alone or Combined with Other Antimicrobial Agents against Oral Bacteria

2003 ◽  
Vol 47 (10) ◽  
pp. 3349-3351 ◽  
Author(s):  
Giuseppantonio Maisetta ◽  
Giovanna Batoni ◽  
Semih Esin ◽  
Filippo Luperini ◽  
Manuela Pardini ◽  
...  
Keyword(s):  
Streptococcus Mutans ◽  
Bactericidal Activity ◽  
Lactobacillus Acidophilus ◽  
Antimicrobial Agents ◽  
Bacterial Species ◽  
Bactericidal Effect ◽  
Oral Bacteria ◽  
Actinobacillus Actinomycetemcomitans ◽  
Streptococcus Sobrinus

ABSTRACT The in vitro activities of human β-defensin 3 (hBD-3) alone or combined with lysozyme, metronidazole, amoxicillin, and chlorhexidine were investigated with the oral bacteria Streptococcus mutans, Streptococcus sanguinis, Streptococcus sobrinus, Lactobacillus acidophilus, Actinobacillus actinomycetemcomitans, and Porphyromonas gingivalis. hBD-3 showed bactericidal activity against all of the bacterial species tested. The bactericidal effect was enhanced when the peptide was used in combination with the antimicrobial agents mentioned above.

scholarly journals Evaluación de la actividad antimicrobiana de los dentífricos basados en propóleos en patógenos orales

2020 ◽  
Vol 33 (2) ◽  
pp. 12-22
Author(s):  
Tatiana Cerveira Valois de Sá ◽  
Valerio Monteiro-Neto ◽  
Cadidja Dayane Sousa do Carmo ◽  
Cecilia Claudia Costa Ribeiro ◽  
Claudia Maria Coelho Alves
Keyword(s):  
Candida Albicans ◽  
Streptococcus Mutans ◽  
Enterococcus Faecalis ◽  
Lactobacillus Acidophilus ◽  
Fusobacterium Nucleatum ◽  
Aggregatibacter Actinomycetemcomitans

Introducción y objetivo: La incorporación de propóleos en los dentífricos tiene como objetivo ayudar de manera más efectiva al control y la prevención de patologías orales a través de la eliminación de los patógenos presentes en la biopelícula. Sin embargo, se sabe poco sobre la eficacia antimicrobiana de diferentes productos en el mercado de microorganismos para estas patologías. El objetivo de este estudio fue investigar la acción antimicrobiana de tres dentífricos que contienen propóleos sobre los patógenos orales. Material y métodos: Se utilizó el método de difusión en agar para analizar tres dentífricos basados en propóleos, que incluyen: Noplak Max®, Protta® y Forever Bright®. Se utilizó un dentífrico sin propóleos (Malvatrikids ®) como control negativo. Los controles positivos fueron 0,2% de clorhexidina diluida adicionalmente al 30% para igualar la concentración de clorhexidina de uno de los dentífricos evaluados, y el extracto de propóleos (Apis Flora®) al 11%. Para la determinación de la actividad antimicrobiana se utilizaron las cepas de Fusobacterium nucleatum y Aggregatibacter actinomycetemcomitans, Enterococcus faecalis, Streptococcus mutans, Lactobacillus acidophilus y Candida albicans. Resultados: De los dentífricos probados, Protta® y Forever Bright® mostraron acción inhibitoria contra S. mutans, E. faecalis y microorganismos de C. albicans. El dentífrico Noplak® mostró baja actividad antimicrobiana, limitándose a S. mutans y E. faecalis. Cuando hubo un efecto antimicrobiano, los diámetros de los halos de inhibición del crecimiento variaron de 9mm a 28,83mm. Conclusión: El uso de un dentífrico que contiene propóleos para su uso eventual como complemento terapéutico en odontología está justificado, considerando las actividades farmacológicas.

scholarly journals In Vitro Activity of Gemifloxacin (SB 265805) against Anaerobes

1999 ◽  
Vol 43 (9) ◽  
pp. 2231-2235 ◽  
Author(s):  
Ellie J. C. Goldstein ◽  
Diane M. Citron ◽  
Yumi Warren ◽  
Kerin Tyrrell ◽  
C. Vreni Merriam
Keyword(s):  
Clinical Laboratory ◽  
Fusobacterium Nucleatum ◽  
Fusobacterium Necrophorum ◽  
Penicillin G ◽  
National Committee ◽  
Dilution Method ◽  
Agar Dilution Method ◽  
Prevotella Melaninogenica ◽  
Amoxicillin Clavulanate

ABSTRACT Gemifloxacin mesylate (SB 265805), a new fluoronaphthyridone, was tested against 359 recent clinical anaerobic isolates by the National Committee for Clinical Laboratory Standards reference agar dilution method with supplemented brucella blood agar and an inoculum of 105 CFU/spot. Comparative antimicrobials tested included trovafloxacin, levofloxacin, grepafloxacin, sparfloxacin, sitafloxacin (DU-6859a), penicillin G, amoxicillin clavulanate, imipenem, cefoxitin, clindamycin, and metronidazole. The MIC50 and MIC90 (MICs at which 50 and 90% of the isolates were inhibited) of gemifloxacin against various organisms (with the number of strains tested in parentheses) were as follows (in micrograms per milliliter): for Bacteroides fragilis (28), 0.5 and 2; forBacteroides thetaiotaomicron (24), 1 and 16; forBacteroides caccae (12), 1 and 16; for Bacteroides distasonis (12), 8 and >16; for Bacteroides ovatus(12), 4 and >16; for Bacteroides stercoris (12), 0.5 and 0.5; for Bacteroides uniformis (12), 1 and 4; forBacteroides vulgatus (11), 4 and 4; for Clostridium clostridioforme (15), 0.5 and 0.5; for Clostridium difficile (15), 1 and >16; for Clostridium innocuum(13), 0.125 and 2; for Clostridium perfringens (13), 0.06 and 0.06; for Clostridium ramosum (14), 0.25 and 8; forFusobacterium nucleatum (12), 0.125 and 0.25; forFusobacterium necrophorum (11), 0.25 and 0.5; forFusobacterium varium (13), 0.5 and 1; forFusobacterium spp. (12), 1 and 2; forPeptostreptococcus anaerobius (13), 0.06 and 0.06; forPeptostreptococcus asaccharolyticus (13), 0.125 and 0.125; for Peptostreptococcus magnus (14), 0.03 and 0.03; forPeptostreptococcus micros (12), 0.06 and 0.06; forPeptostreptococcus prevotii (14), 0.06 and 0.25; forPorphyromonas asaccharolytica (11), 0.125 and 0.125; forPrevotella bivia (10), 8 and 16; for Prevotella buccae (10), 2 and 2; for Prevotella intermedia (10), 0.5 and 0.5; and for Prevotella melaninogenica (11), 1 and 1. Gemifloxacin mesylate (SB 265805) was 1 to 4 dilutions more active than trovafloxacin against fusobacteria and peptostreptococci, and the two drugs were equivalent against clostridia and P. asaccharolytica. Gemifloxacin was equivalent to sitafloxacin (DU 6859a) against peptostreptococci, C. perfringens, andC. ramosum, and sitafloxacin was 2 to 3 dilutions more active against fusobacteria. Sparfloxacin, grepafloxacin, and levofloxacin were generally less active than gemifloxacin against all anaerobes.

scholarly journals ANTICARIOGENIC POTENTIAL OF CAMELLIA SINENSIS ON STREPTOCOCCUS MUTANS- AN IN VITRO STUDY

2019 ◽  
Vol 8 (16) ◽  
pp. 1268-1272
Author(s):  
Pubali Sarkar ◽  
Sandeep Kumar ◽  
Suranjita Das ◽  
Bhuvnesh Airen
Keyword(s):  
Streptococcus Mutans ◽  
Camellia Sinensis ◽  
In Vitro Study ◽  
Vitro Study

scholarly journals Comparative Evaluation of Antibacterial Effect of Dental Luting Cements on Streptococcus mutans and Lactobacillus acidophilus: An in vitro Study

2016 ◽  
Vol 17 (12) ◽  
pp. 973-977 ◽  
Author(s):  
S Khan ◽  
SMA Feroz ◽  
A Bhoyar
Keyword(s):  
Antibacterial Activity ◽  
Streptococcus Mutans ◽  
Lactobacillus Acidophilus ◽  
Antibacterial Effect ◽  
Bacterial Suspension ◽  
Zone Of Inhibition ◽  
Diffusion Test ◽  
Luting Cements ◽  
Agar Diffusion Test

ABSTRACT Introduction This study aimed at evaluating and comparing the antibacterial activity of six types of dental luting cements on Streptococcus mutans and Lactobacillus acidophilus using the agar diffusion test (ADT) and the direct-contact test (DCT). The antibacterial activity in ADT was measured based on the diameter of the zone of inhibition formed, whereas in DCT the density of the bacterial suspension was measured. The lower the density of the suspension, the more antibacterial activity the cement possesses. Materials and methods Agar diffusion test was carried out on the bacteria. After an incubation period of 24 hours, the plates were checked for the presence of zone of inhibition. In DCT the cement was mixed and applied. Once the cement was set, bacterial suspension and brain–heart infusion medium was poured and incubated for 24 hours. After 24 hours, the plate was placed in the enzyme-linked immunosorbent assay plate reader, which measured the optical density of the fluid. The first set of data was recorded approximately 1 hour after incubation. Overall, three sets of data were recorded. Additional experiments were performed on set test materials that were allowed to age for 24 hours, 1 week, 1, 3, and 6 months. Results When using ADT only two cements zinc oxide eugenol (ZOE) and zinc polycarboxylate (ZPC) cement showed antibacterial activity against the test organisms. When using DCT, all cements showed some amount of antibacterial activity. Zinc oxide eugenol and ZPC cement showed highest amount of antibacterial activity against S. mutans and L. acidophilus respectively. Conclusion Within the limitations of study, ZOE cement and ZPC cement were most effective against the tested microorganisms followed by the newer resin cement. The glass ionomer cement was the weakest of all. Clinical significance Patients with high caries index can be treated more effectively using the abovementioned cements. How to cite this article Feroz SMA, Bhoyar A, Khan S. Comparative Evaluation of Antibacterial Effect of Dental Luting Cements on Streptococcus mutans and Lactobacillus acidophilus: An in vitro Study. J Contemp Dent Pract 2016;17(12):973-977.

scholarly journals Determinación antibacteriana in vitro de Menthostachys mollis (Muña) frente a bacterias orales de importancia estomatológica

2014 ◽  
Vol 8 (2) ◽  
pp. 3 ◽  
Author(s):  
Karin Díaz L. ◽  
Hilda Moromi N.
Keyword(s):  
Streptococcus Mutans ◽  
Fusobacterium Nucleatum

Con el objetivo de determinar la acción antimicrobiana del aceite esencial de Methosthachys mollis (Muña); en diseño al azar se enfrentó cepas estándares A TCC de Streptococcus mutans, Lactobacillus sp, Fusobacterium nucleatum, Actinobacillus actinomícetencomitans y Actinomyces sp, a: Amoxicilina (testigo positivo), aceite esencial de Methosthachys mollis y, agua destilada (testigo negativo); para medir los halos de acción antimicrobiana. Para las citadas bacterias se halló, respectivamente, en Amoxicilína los siguientes diámetros promedios en mm: 68; 42,75; 50,5; 51,58 Y 33,25; en Methosthachys mol1is: 16,50; 14,38; 20,13; 18,43 Y 11. Estos resultados son estadísticamente diferentes, No se observó halo en el testigo negativo. Se concluye que Methosthachys mollis tiene efectos antimicrobianos sobre las bacterias orales más importantes, con una media de 16,75 mm de diámetro del halo.

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