Efficacy of Andrographis paniculata compared to Azadirachta indica, Curcuma longa, and sodium hypochlorite when used as root canal irrigants against Candida albicans and Staphylococcus aureus: An in vitro antimicrobial study.
TL;DR: Zones of inhibition exhibited by novel herbal agent A. paniculata were higher against C. albicans and similar against S. aureus, when compared to NaOCl.
Abstract: Aim: The aim is to test the antimicrobial activity of Andrographis Paniculata, Azadirachta indica (neem), and Curcuma Longa (curcumin) as a root canal irrigant, against Staphylococcus aureus and Candida albicans using agar diffusion test. Sodium hypochlorite (NaOCl) served as a standard control for comparisons. Materials and Methods: The bacterial strains of C. albicans and S. aureus culture were grown overnight (18–20 h) in the brain heart infusion broth at 37°C and inoculated in Mueller–Hinton agar plates. Antibacterial inhibition was assessed using agar well-diffusion method using the methanolic extracts of the three plants to be tested and NaOCl. Bacterial inhibition zone around each well was recorded. The results were tabulated and analyzed statistically for significance. Results: The novel A. paniculata showed significantly higher zone of inhibition against C. albicans (P 0.05). Conclusion: Zones of inhibition exhibited by novel herbal agent A. paniculata were higher against C. albicans and similar against S. aureus, when compared to NaOCl.
Citations
More filters
TL;DR: The current literature review aimed at exploration of the variety and extent of herbal products application in oral health maintenance including different fields of oral healthcare such as dental caries, periodontal maintenance, microbial infections, oral cancers, and inflammatory conditions.
36 citations
TL;DR: There is a growing body of exciting evidence that supports the use of A. indica as an antimicrobial, but additional studies are clearly needed to determine the specific mechanisms of action, clinical efficacy, and in vivo safety of neem as a treatment for human pathogens of interest.
Abstract: Azadirachta indica (A. Juss), also known as the neem tree, has been used for millennia as a traditional remedy for a multitude of human ailments. Also recognized around the world as a broad-spectrum pesticide and fertilizer, neem has applications in agriculture and beyond. Currently, the extensive antimicrobial activities of A. indica are being explored through research in the fields of dentistry, food safety, bacteriology, mycology, virology, and parasitology. Herein, some of the most recent studies that demonstrate the potential of neem as a previously untapped source of novel therapeutics are summarized as they relate to the aforementioned research topics. Additionally, the capacity of neem extracts and compounds to act against drug-resistant and biofilm-forming organisms, both of which represent large groups of pathogens for which there are limited treatment options, are highlighted. Updated information on the phytochemistry and safety of neem-derived products are discussed as well. Although there is a growing body of exciting evidence that supports the use of A. indica as an antimicrobial, additional studies are clearly needed to determine the specific mechanisms of action, clinical efficacy, and in vivo safety of neem as a treatment for human pathogens of interest. Moreover, the various ongoing studies and the diverse properties of neem discussed herein may serve as a guide for the discovery of new antimicrobials that may exist in other herbal panaceas across the globe.
13 citations
TL;DR: In this article, the authors evaluated the antimicrobial therapeutic potency of A. paniculata and its metabolites, focusing on the mechanism of action in inhibiting invasive microbes and biofilm formation.
Abstract: Infectious disease (ID) is one of the top-most serious threats to human health globally, further aggravated by antimicrobial resistance and lack of novel immunization options. Andrographis paniculata (Burm. f.) Wall. ex Nees and its metabolites have been long used to treat IDs. Andrographolide, derived from A. paniculata, can inhibit invasive microbes virulence factors and regulate the host immunity. Controlled clinical trials revealed that A. paniculata treatment is safe and efficacious for acute respiratory tract infections like common cold and sinusitis. Hence, A. paniculata, mainly andrographolide, could be considered as an excellent candidate for antimicrobial drug development. Considering the importance, medicinal values, and significant role as antimicrobial agents, this study critically evaluated the antimicrobial therapeutic potency of A. paniculata and its metabolites, focusing on the mechanism of action in inhibiting invasive microbes and biofilm formation. A critical evaluation of the secondary metabolites with the aim of identifying pure compounds that possess antimicrobial functions has further added significant values to this study. Notwithstanding that A. paniculata is a promising source of antimicrobial agents and safe treatment for IDs, further empirical research is warranted.
13 citations
TL;DR: 5% NaOCl showed the maximum antib bacterial activity, and herbal products demonstrated significant antibacterial activity against E. faecalis and can be employed as an alternative to NaOOCl.
Abstract: Objectives: The aim of this study is to evaluate and compare the antibacterial efficacy of Thymus vulgaris, Salvadora persica, Acacia nilotica, Calendula arvensis, and 5% sodium hypochlorite against Enterococcus faecalis. Methodology: Herbal extracts of T. vulgaris, S. persica, A. nilotica and C. arvensis were prepared. Tryptone soya broth was used to grow E. faecalis and agar plates were prepared. The tested solutions (Group A: 5% NaOCl, Group B: 20% T. vulgaris, Group C: 12.5% S. persica, Group D: 10% A. nilotica, Group E: 10% C. arvensis) were added to the wells made on agar media. Agar diffusion test was performed. Plates were incubated at 37°C for 24 h. Bacterial zones of inhibition were recorded. Results: The data were analyzed statistically by Analysis of Variance (ANOVA) and post hoc comparison by Tukey's t-test. The highest zone of inhibition against E. faecalis was shown by 5% NaOCl, followed by 10% C. arvensis, 20% T. vulgaris and 10% A. nilotica showed similar comparable antibacterial activity. The least zone of inhibition was showed by S. persica. Conclusion: 5% NaOCl showed the maximum antibacterial activity, and herbal products demonstrated significant antibacterial activity against E. faecalis and can be employed as an alternative to NaOCl.
5 citations
Cites background from "Efficacy of Andrographis paniculata..."
...[5] The healing potential of herbal plants is an ancient belief; however, it has gained interest and importance in recent times.[6] These herbal products are not only safe, easily available, and cost-effective, but also have increased shelf-life and lack of microbial resistance so far....
[...]
TL;DR: In this article, the authors evaluated and compared the antibacterial activity of Allium sativum extract, aqueous ozone, diode laser, and 3% sodium hypochlorite (NaOCl) as root canal irrigants.
Abstract: Aim: The present study aimed to individually evaluate and compare the aerobic and anaerob?ic antibacterial activity of Allium sativum extract, aqueous ozone, diode laser, and 3% sodium hypochlorite (NaOCl) as root canal irrigants. Materials and Methods: Forty-eight patients were selected and randomly allocated to one of the four groups (n = 12 each) according to the irrigant to be used in each group. For each included tooth, the preirrigation and postirrigation (after irrigation with the test solution) samples were collected through sterile paper points and microbial culturing was done by swabbing on blood agar plates followed by incubation for aerobic and anaerobic bacteria. Statistical Analysis: Manual colony-forming units counting were done, and statistical analysis was performed. Analysis of variance (one-way) followed by post hoc test was performed as a parametric test to compare the difference between the groups for both aerobic and anaerobic bacteria. Results: All the groups showed a statistically significant reduction in bacteria (P Conclusion: A. sativum extract, aqueous zone, diode laser, and 3% NaOCl showed significant antibacterial activity against aerobic and anaerobic bacteria.
4 citations
References
More filters
TL;DR: The aqueous extract showed significant antimicrobial activity, which may be due to the combined effect of the isolated arabinogalactan proteins and andrographolides.
209 citations
"Efficacy of Andrographis paniculata..." refers background or result in this paper
...aureus was 250 μg/ml, which are in accordance with previously reported studies.[14,16] It also has anti-inflammatory, immunostimulant and antipyretic effects,[17] which helps in the treatment of acute upper respiratory tract infections....
[...]
...subtilis, and Pseudomonas aeruginosa.[16] The minimum inhibitory concentration (MIC) against C....
[...]
TL;DR: Propolis and MCJ were effective against E. faecalis in dentine of extracted teeth and produced better antimicrobial efficacy than the control group (Saline).
Abstract: Kandaswamy D, Venkateshbabu N, Gogulnath D, Kindo AJ. Dentinal tubule disinfection with 2% chlorhexidine gel, propolis, morinda citrifolia juice, 2% povidone iodine, and calcium hydroxide. International Endodontic Journal, 43, 419–423, 2010.
Abstract
Aim To investigate the antimicrobial activity of 2% chlorhexidine gel, propolis, Morinda citrifolia juice (MCJ), 2% povidone Iodine (POV-I), and calcium hydroxide on Enterococcus faecalis-infected root canal dentine at two different depths (200 μm and 400 μm) and three time intervals (day 1, 3 & 5).
Methodology One hundred and eighty extracted human teeth were infected for 21 days with E. faecalis. Samples were divided into six groups. Group I (Saline) (Negative control), Group II (Propolis), Group III (MCJ), Group IV (2% Povidone Iodine), Group V (2% Chlorhexidine Gel), Group VI (Calcium hydroxide). At the end of 1, 3, and 5 days, the remaining vital bacterial population was assessed. Dentine shavings were collected at two depths (200 μm and 400 μm), and total numbers of colony forming units were determined. The values were analysed statistically with one-way analysis of variance followed by Tukey multiple comparison test. The paired t-test was used to check for differences in growth at different time intervals within groups and for differences at the two depths (P < 0.01)
Results The number of colony-forming units was statistically significant in all groups compared to the control group (Saline). Group V (chlorhexidine gluconate) (100%) produced better antimicrobial efficacy followed by 2% POV-I (87%), propolis (71%), MCJ (69%), and calcium hydroxide (55%). There was no significant difference between propolis and MCJ and no significant difference between data at 200 μm and 400 μm.
Conclusion Propolis and MCJ were effective against E. faecalis in dentine of extracted teeth.
154 citations
"Efficacy of Andrographis paniculata..." refers background in this paper
...aureus, which are commonly encountered in recalcitrant endodontic infections.[12]...
[...]
TL;DR: The present article covers antiviral properties of andrographolide in variety of viral infections, with the hope of developing of a new highly potent antiviral drug with multiple effects.
Abstract: Andrographolide, a diterpenoid, is known for its anti-inflammatory effects. It can be isolated from various plants of the genus Andrographis, commonly known as 'creat'. This purified compound has been tested for its anti-inflammatory effects in various stressful conditions, such as ischemia, pyrogenesis, arthritis, hepatic or neural toxicity, carcinoma, and oxidative stress, Apart from its anti-inflammatory effects, andrographolide also exhibits immunomodulatory effects by effectively enhancing cytotoxic T cells, natural killer (NK) cells, phagocytosis, and antibody-dependent cell-mediated cytotoxicity (ADCC). All these properties of andrographolide form the foundation for the use of this miraculous compound to restrain virus replication and virus-induced pathogenesis. The present article covers antiviral properties of andrographolide in variety of viral infections, with the hope of developing of a new highly potent antiviral drug with multiple effects.
120 citations
"Efficacy of Andrographis paniculata..." refers background in this paper
...This herbal agent exhibited antibacterial, antifungal, and antiviral effectiveness in previous reports.[13,14,15] It has proved antibacterial activity against Gram-positive (+) and Gram-negative (−) bacteria including avirulent Mycobacterium smegmatis and M....
[...]
TL;DR: Nanotechnology‐based drug delivery systems can resolve the poor bioavailability issue allied withCurcumin by making nanocomposite preparation of curcumin with metal oxide nanoparticles, poly lactic‐co‐glycolic acid (PLGA) nanoparticles and solid lipid nanoparticles that increases its bioavailability in the tissue.
Abstract: Objectives
Nanotechnology-based drug delivery systems can resolve the poor bioavailability issue allied with curcumin. The therapeutic potential of curcumin can be enhanced by making nanocomposite preparation of curcumin with metal oxide nanoparticles, poly lactic-co-glycolic acid (PLGA) nanoparticles and solid lipid nanoparticles that increases its bioavailability in the tissue.
Key findings
Curcumin has manifold therapeutic effects which include antidiabetic, antihypertensive, anticancer, anti-inflammatory and antimicrobial properties. Curcumin can inhibit diabetes, heavy metal and stress-induced hypertension with its antioxidant, chelating and inhibitory effects on the pathways that lead to hypertension. Curcumin is an anticancer agent that can prevent abnormal cell proliferation. Nanocurcumin is an improved form of curcumin with enhanced therapeutic properties due to improved delivery to the diseased tissue, better internalization and reduced systemic elimination.
Summary
Curcumin has multiple pharmacologic effects, but its poor bioavailability reduces its therapeutic effects. By conjugating curcumin to metal oxide nanoparticles or encapsulation in lipid nanoparticles, dendrimers, nanogels and polymeric nanoparticles, the water solubility and bioavailability of curcumin can be improved and thus increase its pharmacological effectiveness.
117 citations
"Efficacy of Andrographis paniculata..." refers background in this paper
...Various clinical trials show that curcumin can be used in a wide range of concentration, without causing toxicity.[22] Accounting to its antibacterial and antiinflammatory properties, it can have several possible applications in endodontics, one of them being a potentially effective endodontic irrigant....
[...]
TL;DR: It was concluded that diffusion and antimicrobial activity of calcium hydroxide were affected by the type of vehicle used and pastes with oily vehicles showed significantly larger mean zones of inhibition compared to those with aqueous or viscous vehicles.
Abstract: The aim of this study was to investigate in vitro the antimicrobial activity of calcium hydroxide in combination with several vehicles against some microorganisms commonly isolated from root canals. Antimicrobial activity was determined by the agar diffusion method. Stainless-steel cylinders were placed on each inoculated agar medium. The test medicaments and their controls were placed inside the cylinders. The zones of growth inhibition were measured and recorded after incubation for each plate and the results were analyzed statistically (ANOVA). The in vitro antimicrobial effects of the medications were ranked from strongest to weakest as follows: Ca(OH)2 + CMCP + glycerine, Ca(OH)2 + CMCP, Ca(OH)2 + glycerine, Ca(OH)2 + anesthetic, Ca(OH)2 + saline, Ca(OH)2 + H2O, Ca(OH)2 + polyethyleneglycol. The pastes with oily vehicles showed significantly larger mean zones of inhibition compared to those with aqueous or viscous vehicles. It was concluded that diffusion and antimicrobial activity of calcium hydroxide were affected by the type of vehicle used.
109 citations
"Efficacy of Andrographis paniculata..." refers background in this paper
...[4] Facultative microorganisms such as Enterococcus faecalis, Candida albicans, and Staphylococcus aureus have been considered to be the most resistant species in the oral cavity and possible cause of failure of root canal treatment.[6] E....
[...]