Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
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| enterococcus faecalis uses a pts permease and a host colonization-related abc transporter for maltodextrin uptake. | maltodextrin is a mixture of maltooligosaccharides, which are produced by the degradation of starch or glycogen. they are mostly composed of α-1,4- and some α-1,6- linked glucose residues. genes presumed to code for the enterococcus faecalis maltodextrin transporter were induced during enterococcal infection. we therefore carried out a detailed study of maltodextrin transport in this organism. depending on their length (3 to 7 glucose residues), e. faecalis takes up maltodextrins either via malt ... | 2017 | 28242718 |
| adjuvant antibiotic activity of acidic sophorolipids with potential for facilitating wound healing. | the sophorolipid class of biosurfactants are finding increasing use in personal care as well as pharmaceutical products and have the potential to disrupt biofilm formation and inhibit growth in a variety of clinically relevant organisms. in order to investigate potential biomedical applications of sophorolipids derived from non-pathogenic organisms, we fractionated and purified glycolipid biosurfactant sophorolipids produced by the yeast starmerella bombicola, which yielded both acidic c 18-1 ac ... | 2017 | 28242666 |
| loop-mediated isothermal amplification label-based gold nanoparticles lateral flow biosensor for detection of enterococcus faecalis and staphylococcus aureus. | the report describes a simple, rapid and sensitive assay for visual and multiplex detection of enterococcus faecalis and staphylococcus aureus based on multiple loop-mediated isothermal amplification (mlamp) and lateral flow biosensor (lfb). detection and differentiation of the ef0027 gene (e. faecalis-specific gene) and nuc gene (s. aureus-specific gene) were determined using fluorescein (fitc)-and digoxin-modified primers in the mlamp process. in the presence of biotin- and fitc-/digoxin-modif ... | 2017 | 28239371 |
| identification and prevalence of tetracycline resistance in enterococci isolated from poultry in ilishan, ogun state, nigeria. | tetracycline is one of the most frequently used antibiotics in nigeria both for human and animal infections because of its cheapness and ready availability. the use of tetracycline in animal husbandry could lead to horizontal transfer of tet genes from poultry to human through the gut microbiota, especially enterococci. therefore, this study is designed to identify different enterococcal species from poultry feces in selected farms in ilishan, ogun state, nigeria, determine the prevalence of tet ... | 2017 | 26957873 |
| exogenous endophthalmitis caused by enterococcus casseliflavus: a case report and discussion regarding treatment of intraocular infection with vancomycin-resistant enterococci. | endophthalmitis caused by enterococci is rare, and cases involving vancomycin-resistant enterococci are even more so. due to the poor bioavailability of many antibiotics in the vitreous chamber, special considerations are required when choosing antibiotics to treat these infections. the authors report the first case of exogenous endophthalmitis caused by enterococcus casseliflavus via the unique mechanism of high-velocity water stream trauma from a toy water gun. a previously healthy four-year o ... | 2017 | 26744592 |
| a 10-year profile of enterococcal bloodstream infections at a tertiary-care hospital in japan. | the first aim of this study is to characterize the epidemiology of enterococcal bloodstream infections (bsis) at a japanese tertiary-care hospital. the second aim is to identify predictive factors for 30-day mortality. | 2017 | 28385565 |
| safety assessment of commensal enterococci from dogs. | enterococci form a complex, diverse, and very important group of bacteria from the technological and food safety aspect, or from the health-improving aspect as probiotics. generally, enterococci are considered to be of low pathogenic potential, which is associated mostly with clinical strains. in these strains, production of virulence factors as well as resistance to many antimicrobial drugs could complicate treatment of nosocomial infections. because there is a lack of information on incidence ... | 2017 | 28316009 |
| maldi-tof mass spectrometry as a useful tool for identification of enterococcus spp. from wild birds and differentiation of closely related species. | the aim of this study was to explore the accuracy and feasibility of matrix-assisted laser desorption ionization time-of-flight mass spectrometry (maldi-tof ms) in identifying bacteria from environmental sources, as compared to rpoa gene sequencing, and to evaluate the occurrence of bacteria of the genus enterococcus in wild birds. in addition, a phyloproteomic analysis of certain enterococcus species with spectral relationships was performed. the enterococci were isolated from 25 species of wil ... | 2017 | 28285496 |
| comparative genomics of enterococcus spp. isolated from bovine feces. | enterococcus is ubiquitous in nature and is a commensal of both the bovine and human gastrointestinal (gi) tract. it is also associated with clinical infections in humans. subtherapeutic administration of antibiotics to cattle selects for antibiotic resistant enterococci in the bovine gi tract. antibiotic resistance genes (args) may be present in enterococci following antibiotic use in cattle. if located on mobile genetic elements (mges) their dissemination between enterococcus species and to pa ... | 2017 | 28270110 |
| antimicrobial resistance and virulence profile of enterococci isolated from poultry and cattle sources in nigeria. | this study investigated the occurrence, antimicrobial resistance and virulence of enterococcus from poultry and cattle farms. three hundred and ninety samples: cloacal/rectal swabs (n = 260) and manure (n = 130] were processed for recovery of enterococcus species. standard bacteriological methods were used to isolate, identify and characterize enterococcus species for antimicrobial susceptibility and expression of virulence traits. detection of antibiotic resistance and virulence genes was carri ... | 2017 | 27987112 |
| rapid assessment of resistance to antibiotic inhibitors of protein synthesis in the gram-positive pathogens, enterococcus faecalis and streptococcus pneumoniae, based on evaluation of the lytic response. | a novel assay for rapid determination of resistance to antibiotic inhibitors of protein synthesis was developed for the gram-positive pathogens, enterococcus faecalis and streptococcus pneumoniae. to this purpose, a lytic response was obtained by a brief incubation with lysozyme or a mixture of lysozyme, triton x-100, and edta for e. faecalis (n = 82) and s. pneumoniae (n = 51), respectively. lysis was quantified by visualizing the released nucleoids. antibiotic-susceptible bacteria treated with ... | 2017 | 27383851 |
| comparative evaluation of antimicrobial effect of herbal root canal irrigants (morinda citrifolia, azadirachta indica, aloe vera) with sodium hypochlorite: an in vitro study. | successful root canal treatment involves the complete elimination of microorganism from the root canal and the three-dimensional obturation of the canal space. enterococcus faecalis is the most commonly found bacteria in failed root canal. chemical irrigation of canals along with biomechanical preparation helps in the elimination of microorganisms. the present study was aimed to evaluate the antimicrobial effect of herbal root canal irrigants (morinda citrifolia, azadirachta indica extract, aloe ... | 2017 | 27382533 |
| breaking down polystyrene through the application of a two-step thermal degradation and bacterial method to produce usable byproducts. | in this work, the objective is to examine a novel approach on the biodegradability of polystyrene is examined. a two-step method for the degradation of polystyrene to chemically useful products has been devised. initially, polystyrene is liquefied via a thermal degradation procedure predominantly into styrene monomers at low temperatures and left to cool down. application of microorganisms in a second step targets the breaking of the polymer into smaller organic molecules. microorganisms tested ... | 2017 | 27440221 |
| in vitro comparison of antibacterial properties of bioceramic-based sealer, resin-based sealer and zinc oxide eugenol based sealer and two mineral trioxide aggregates. | our goal of the study was to evaluate the antibacterial properties of endodontic sealers against the e. faecalis. | 2017 | 27403055 |
| probiotic properties and adsorption of enterococcus faecalis psct3-7 to vermiculite. | the probiotic properties of enterococcus (e.) faecalis psct3-7, a new strain isolated from the intestines of pigs fed dietary fiber containing 50% sawdust, were investigated. e. faecalis psct3-7 tolerated a ph range of 3 to 8 and 0.3% bile salts, and it inhibited the growth of salmonella typhimurium in a concentration-dependent manner. in addition, e. faecalis showed resistance to several antibacterial agents. vermiculite, a nutrient and microbial carrier, increased the bile tolerance of the str ... | 2017 | 27456777 |
| enterococcus faecalis and dental implants. | enterococcus faecalis appears in many tooth root infections and is not eliminated by root canal therapy. it can reside in tooth root canals and the surrounding bone. this species may vegetate in bone after extraction of an infected tooth and colonize a dental implant after placement in the healed site. a colonization may cause fixture loss or marginal bone loss. these colonizations are generally multibacterial and pathogenic properties can be shared via plasmids. however, e faecalis is not detec ... | 2017 | 27700696 |
| (13)c-metabolic flux analysis for mevalonate-producing strain of escherichia coli. | mevalonate (mva) is used to produce various useful products such as drugs, cosmetics and food additives. an mva-producing strain of escherichia coli (engineered) was constructed by introducing mvaes genes from enterococcus faecalis. the engineered strain produced 1.84 mmol/gdcw/h yielding 22% (c-mol/c-mol) of mva from glucose in the aerobic exponential growth phase. the mass balance analysis revealed that the mva yield of the engineered strain was close to the upper limit at the biomass yield. s ... | 2017 | 27570223 |
| synthesis and biological evaluation of lipophilic teicoplanin pseudoaglycon derivatives containing a substituted triazole function. | a series of lipophilic teicoplanin pseudoaglycon derivatives, including alkyl-, aryl-, calixarene- and protected sugar-containing conjugates, were prepared using azide-alkyne click chemistry. out of the conditions applied, the cuso4-ascorbate reagent system proved to be more efficient than the cu(i)i-et3n-mediated reaction. some of the new compounds have high in vitro activity against glycopeptide-resistant gram-positive bacteria, including vana-positive enterococcus faecalis. a few of them also ... | 2017 | 27353163 |
| characteristics of vancomycin-resistant enterococcus strains in the west balkans: a first report. | vancomycin-resistant enterococci are among the major causes of nosocomial infections and represent a growing problem in many european countries. among the most common enterococcal isolates, enterococcus faecium is considered to be the reservoir of vana and vanb-mediated resistance to glycopeptides. enterococci with vana-mediated resistance can transfer resistance genes to other enterococci and gram-positive bacteria. hence, monitoring and surveillance of vancomycin-resistant enterococci (vres) a ... | 2017 | 27351410 |
| multi-drug-resistant enterococcus faecalis among egyptian patients with urinary tract infection. | the prevalence of enterococcus faecalis (e. faecalis) infections among egyptians with urinary tract infection (uti), their antimicrobial susceptibility and mechanisms of resistance are under investigated. in this study, 300 urine samples were collected from uti patients to identify e. faecalis. antimicrobial susceptibility to 18 antimicrobial agents was tested. the presence of aac(6)-ie-aph(2)ia, erm(b) and mef(a/e) genes was examined by pcr. fifty-seven (19%) isolates were identified as e. faec ... | 2017 | 27351108 |
| to defend or not to defend: that's the question. | enterococcus faecalis is an opportunistic pathogen and is one of the leading causes of nosocomial infections. e. faecalis harbors a number of antibiotic resistance genes, and most of these are present on mobile genetic elements (mges) that can be disseminated within the species, as well as to other members of the human microflora. in an article by price and colleagues [v. j. price et al., msphere 1(3):e00064-16, 2016, http://dx.doi.org/10.1128/msphere.00064-16], the authors demonstrated how e. f ... | 2017 | 27306929 |
| crispr-cas and restriction-modification act additively against conjugative antibiotic resistance plasmid transfer in enterococcus faecalis. | enterococcus faecalis is an opportunistic pathogen and a leading cause of nosocomial infections. conjugative pheromone-responsive plasmids are narrow-host-range mobile genetic elements (mges) that are rapid disseminators of antibiotic resistance in the faecalis species. clustered regularly interspaced short palindromic repeat (crispr)-cas and restriction-modification confer acquired and innate immunity, respectively, against mge acquisition in bacteria. most multidrug-resistant e. faecalis isola ... | 2017 | 27303749 |
| lactobacillus helveticus lafti l10 supplementation modulates mucosal and humoral immunity in elite athletes: a randomized, double-blind, placebo-controlled trial. | michalickova, dm, kostic-vucicevic, mm, vukasinovic-vesic, md, stojmenovic, tb, dikic, nv, andjelkovic, ms, djordjevic, bi, tanaskovic, bp, and minic, rd. lactobacillus helveticus lafti l10 supplementation modulates mucosal and humoral immunity in elite athletes: a randomized, double-blind, placebo-controlled trial. j strength cond res 31(1): 62-70, 2017-to test the influence of probiotic supplementation on humoral immune response, a double-blind, placebo-controlled trial was conducted. thirty a ... | 2017 | 27100317 |
| antimicrobial effect of three disinfecting agents on resilon cones and their effect on surface topography: an in vitro study. | the objective of this study was to evaluate the effectiveness of 5.25% sodium hypochlorite (naocl), 2% chlorhexidine (chx), and 2% peracetic acid (paa) in disinfecting resilon cones and to evaluate topographical changes microscopically under scanning electron microscope (sem) after rapid chemical disinfection. | 2017 | 27099418 |
| efficacy of calcium oxide and calcium hydroxide nanoparticles on the elimination of enterococcus faecalis in human root dentin. | the objective of this study was to compare the antibacterial effect of calcium oxide nanoparticles (conps) and calcium hydroxide nanoparticles (chnps) against enterococcus faecalis in a dentinal block model. | 2017 | 27129586 |
| pretreatment with a heat-killed probiotic modulates monocyte chemoattractant protein-1 and reduces the pathogenicity of influenza and enterovirus 71 infections. | it has been proposed that inactivated probiotics may modulate the host immune system and contribute to mitigation of viral infections. this study demonstrated that administration of heat-killed enterococcus faecalis, a widely used probiotic, can protect host animals against viral infections. the influenza-mediated morbidity and lung inflammation in e. faecalis-treated mice decreased significantly compared with those of the control mice. furthermore, we found that the protection is associated wit ... | 2017 | 27072606 |
| light and temperature effects on bioactivity in diatoms. | isolates of five pelagic north atlantic marine diatoms (bacillariophyceae): attheya longicornis, chaetoceros socialis, chaetoceros furcellatus, skeletonema marinoi and porosira glacialis were cultivated in large photobioreactors at two light and two temperature regimes to test if this affected bioactivity. we screened for bioactivity in assays representing five different therapeutic areas: diabetes ii (ptp1b), cancer (melanoma cells, a2058), anti-oxidants (frap), immunomodulation (tnfa) and anti ... | 2017 | 27057087 |
| the effect of berberine hydrochloride on enterococcus faecalis biofilm formation and dispersion in vitro. | enterococcus faecalis (e. faecalis) is one of the major causes of biofilm infections. berberine hydrochloride (bbh) has diverse pharmacological effects; however, the effects and mechanisms of bbh on e. faecalis biofilm formation and dispersion have not been reported. in this study, 99 clinical isolates from the urine samples of patients with urinary tract infections (utis) were collected and identified. ten strains of e. faecalis with biofilm formation ability were studied. bbh inhibited e. faec ... | 2017 | 27242142 |
| effect of laser-activated irrigation on biofilms in artificial root canals. | to evaluate the antimicrobial effect of laser-activated irrigation (lai) on biofilms formed in simulated root canals. | 2017 | 27014832 |
| molecular characterization of virulence genes in vancomycin-resistant and vancomycin-sensitive enterococci. | the aim of this study was to find out the correlation between presence of virulence (gelatinase [gel e], enterococcal surface protein [esp], cytolysin a [cyl a], hyaluronidase [hyl], and aggregation substance [asa1]) and vancomycin-resistant genes (van a and van b) in enterococci, with their phenotypic expression. | 2017 | 27013840 |
| community acquired enterococcal urinary tract infections and antibiotic resistance profile in north india. | urinary tract infections (utis) remain a major problem both in hospitalized and outdoor patients. multidrug-resistant enterococci are emerging as a major nosocomial pathogen with increasing frequency. however, the incidence of community-acquired enterococcal infections and species prevalent in india is not thoroughly investigated. | 2017 | 27013814 |
| the prevalence of aminoglycoside-modifying enzyme and virulence genes among enterococci with high-level aminoglycoside resistance in inner mongolia, china. | this study highlights the prevalence of aminoglycoside-modifying enzyme genes and virulence determinants among clinical enterococci with high-level aminoglycoside resistance in inner mongolia, china. screening for high-level aminoglycoside resistance against 117 enterococcal clinical isolates was performed using the agar-screening method. out of the 117 enterococcal isolates, 46 were selected for further detection and determination of the distribution of aminoglycoside-modifying enzyme-encoding ... | 2017 | 27268115 |
| enhancing the antibacterial activity of the gold standard intracanal medicament with incorporation of silver zeolite: an in vitro study. | enterococcus faecalis is a persistent organism that plays a major role in the etiology of persistent periradicular lesions after root canal treatment has been associated with different forms of periradicular disease including primary endodontic infections and persistent infections. the present study compares the antibacterial activities of calcium hydroxide, calcium hydroxide mixed with silver zeolite, and calcium hydroxide mixed with 2% chlorhexidine against e. faecalis using direct contact tes ... | 2017 | 27011937 |
| detection of vancomycin resistance in enterococcus species isolated from clinical samples and feces of colonized patients by phenotypic and genotypic methods. | the aim of this study was to find out the clinical correlation between the presence of vancomycin-resistant genes (van a and van b) and their expression as detected by phenotypic tests in colonized patients and in clinical isolates. | 2017 | 27166038 |
| influence of temperature on the antibacterial activity of sodium hypochlorite. | the aim of this study was to compare the antimicrobial activity of 5.25% naocl, hypoclean and chlor-xtra at 20 °c and 45 °c in bovine root dentin. one-hundred-and-seventy dentin tubes prepared from bovine maxillary incisors were infected for 21 days with enterococcus faecalis. the specimens were divided into the following groups: 1. 5.25% naocl 20 °c; 2. hypoclean 20 °c; 3. chlor-xtra 20 °c; 4. 5.25% % naocl 45 °c; 5. hypoclean 45 °c; 6. chlor-xtra 45 °c; 7. positive control; 8. negative control ... | 2017 | 27007342 |
| 2-hydroxyisocaproic acid is bactericidal in human dental root canals ex vivo. | to compare the activity of 2-hydroxyisocaproic acid (hica), calcium hydroxide (ca(oh)2 ) and chlorhexidine digluconate (chg) against enterococcus faecalis t-75359 (root canal isolate) in the root canals of extracted human teeth. | 2017 | 27004733 |
| a new mechanism of post-transfer editing by aminoacyl-trna synthetases: catalysis of hydrolytic reaction by bacterial-type prolyl-trna synthetase. | aminoacyl trna synthetases are enzymes that specifically attach amino acids to cognate trnas for use in the ribosomal stage of translation. for many aminoacyl trna synthetases, the required level of amino acid specificity is achieved either by specific hydrolysis of misactivated aminoacyl-adenylate intermediate (pre-transfer editing) or by hydrolysis of the mischarged aminoacyl-trna (post-transfer editing). to investigate the mechanism of post-transfer editing of alanine by prolyl-trna synthetas ... | 2017 | 26886480 |
| comparative antimicrobial efficacy of herbal alternatives (emblica officinalis, psidium guajava), mtad, and 2.5% sodium hypochlorite against enterococcus faecalis: an in vitro study. | the objective of this study was to evaluate the antimicrobial efficacy of herbal alternatives (emblica officinalis, psidium guajava), biopure mtad, and 2.5% sodium hypochlorite against enterococcus faecalis. | 2017 | 26937369 |
| in vitro antimicrobial evaluation of toothpastes with natural compounds. | this in vitro study evaluated the antimicrobial effects of commercial toothpastes containing natural compounds. | 2017 | 26929699 |
| effectiveness of n-acetyl cysteine, 2% chlorhexidine, and their combination as intracanal medicaments on enterococcus faecalis biofilm. | the purpose of this study was to evaluate the antibacterial efficacies of 2% chlorhexidine (chx), n-acetyl cysteine (nac) and assess their synergistic or antagonist action as intracanal medicament. | 2017 | 26957787 |
| antimicrobial effect of an oxazolidinone, lantibiotic and calcium hydroxide against enterococcus faecalis biofilm: an in vitro study. | the aim was to evaluate and compare the antimicrobial efficacy of an oxazolidinone (linezolid [lz]), lantibiotic (nisin), and calcium hydroxide against enterococcus faecalis biofilm formed on tooth substrate after 2 and 7 days. | 2017 | 26752879 |
| antimicrobial efficacy of different root canal sealers by using real-time polymerase chain reaction: an ex vivo study. | root canal sealers help to minimize leakage, provides antimicrobial activity to reduce the possibility of residual bacteria, and to resolve periapical lesion. | 2017 | 26752843 |
| [profile of bacterial resistance in pediatric urinary tract infections in 2014]. | in pediatric units, bacteria-producing extended-spectrum-betalactamase (esbl) have an increasing prevalence among bacteria causing febrile urinary tract infections (utis). the purpose of this study was to evaluate the epidemiology of bacteria resistance patterns observed in utis, in order to assess the current antibiotic treatment protocols. this study is based upon a single-center retrospective chart review of the cytobacteriological urine cultures performed in utis between 1 january and 31 dec ... | 2017 | 28131557 |
| effect of preoperative biliary drainage on bacterial flora in bile of patients with periampullary cancer. | patients with obstructive jaundice due to periampullary tumours may undergo preoperative biliary drainage (pbd). the effect of pbd on the microbiome of the biliary system and on postoperative outcome remains unclear. | 2017 | 28121036 |
| searching for a potential antibacterial lead structure against bacterial biofilms among new naphthoquinone compounds. | the aims of this study were to design, synthesize and to evaluate 2-hydroxy-3-phenylsulfanylmethyl-[1,4]-naphthoquinones against gram-negative and gram-positive bacterial strains, including methicillin-resistant staphylococcus aureus (mrsa) and its biofilm, to probe for potential lead structures. | 2017 | 27930849 |
| postmortem in vitro ethanol production-it could be more common than we think! | the blood alcohol concentration (bac) is the most frequent determination in a forensic toxicology laboratory. despite its apparent simplicity, the results interpretation can be complex and always have relevant social and legal implications, particularly in postmortem analysis. in the present report we describe the case of a 55-year-old male with an apparent natural death by myocardial infarction, whose initial bac was 0.18g/l but, in repeated determinations prompted by discrepancies observed in ... | 2017 | 28108144 |
| effect of zingiber officinale and propolis on microorganisms and endotoxins in root canals. | the purpose of this study was to evaluate the effectiveness of glycolic propolis (pro) and ginger (gin) extracts, calcium hydroxide (ch), chlorhexidine (clx) gel and their combinations as icms (icms) against candida albicans, enterococcus faecalis, escherichia coli and endotoxins in root canals. | 2017 | 23559108 |
| additive and reducing effects between calcium hydroxide and current irrigation solutions. | microorganisms should be considered to have the major role in starting and perpetuation of pulpo-periapical diseases. using intracanal medicaments is necessary to gain a bacteria-free environment in the canal system. calcium hydroxide (abbreviated as ca(oh)2), which is the most commonly used medicament in endodontic therapy, has been shown to be effective against primary sources of infection; however, its effectiveness against some microorganisms, such as candida albicans and enterococcus faecal ... | 2017 | 28258273 |
| evaluation of antimicrobial and antifungal efficacy of chitosan as endodontic irrigant against enterococcus faecalis and candida albicans biofilm formed on tooth substrate. | bacterial biofilms formed on the root canal wall are often difficult to remove. this study aimed to evaluate the cytotoxic effect and antibacterial efficacy of chitosan when used as root canal irrigant against e. faecalis and candida albicans biofilm formed on tooth substrate. | 2017 | 28298975 |
| evaluation of dental adhesive systems incorporating an antibacterial monomer eugenyl methacrylate (egma) for endodontic restorations. | the purpose of this study was to incorporate egma, an antibacterial monomer into two commercial dental adhesive systems for their application in endodontic restoration with the aim to disinfect the root canal space before curing and to inhibit bacterial growth on their surfaces after being cured. | 2017 | 28245928 |
| n-acetylcysteine inhibits growth, adhesion and biofilm formation of gram-positive skin pathogens. | n-acetylcysteine (nac) is a non-antibiotic drug with antimicrobial properties against biofilm phenotypes of gram-positive and gram-negative bacteria. our aim was to assess the effects of nac on the growth of gram-positive human skin and mucous membrane pathogens in the planktonic and biofilm phases. the minimum inhibitory concentrations (mics) of nac against enterococcus faecalis, corynebacterium ammoniagenes, mycobacterium smegmatis, propionibacterium acnes, staphylococcus aureus, s. epidermidi ... | 2017 | 28237766 |
| prenylated flavonoids from the stems and roots of tripterygium wilfordii. | phytochemical investigation on the stems and roots of tripterygium wilfordii led to the isolation and characterization of three new prenylated flavanones, tripteryols a-c (1-3), along with (±)-5,4'-dihydroxy-2'-methoxy-6',6″-dimethypyraro-(2″,3″:7,8)-6-methyflavanone (4), and ((2s)-5,7,4'-trihydroxy-2'-methoxy-8,5'-di(3-methyl-2-butenyl)-6-methylflavanone (5). structures of the compounds 1-5 were elucidated using spectroscopic techniques, such as uv, ir, nmr (1d and 2d), and hresi-ms. tripteryol ... | 2017 | 28389278 |
| the safe enterocin dd14 is a leaderless two-peptide bacteriocin with anti-clostridium perfringens activity. | enterococcus faecalis 14, a strain previously isolated from meconium, displayed activity against four clostridium perfringens isolates when co-cultured on agar plates. the anti-clostridium activity was ascribed to the production of enterocin dd14, which was subsequently purified. the minimum inhibitory concentration (mic) of enterocin dd14 against one collection strain and one clinical c. perfringens strain was determined at 50 µg/ml. furthermore, using the intestinal epithelial cell line ipec-1 ... | 2017 | 28104423 |
| enterocin b3a-b3b produced by lab collected from infant faeces: potential utilization in the food industry for listeria monocytogenes biofilm management. | enterococcus faecalis b3a-b3b produces the bacteriocin b3a-b3b with activity against listeria monocytogenes, staphylococcus aureus, methicillin-resistant staphylococcus aureus (mrsa) and clostridium perfringens, but apparently not against fungi or gram-negative bacteria, except for salmonella newport. b3a-b3b enterocin has two different nucleotides but similar amino acid composition to the class iib mr10a-mr10b enterocin. b3a-b3b consists of two peptides of predicted molecular mass of 5176.31 da ... | 2017 | 27878401 |
| in vitro antimicrobial activity of auxiliary chemical substances and natural extracts on candida albicans and enterococcus faecalis in root canals. | the aim of this study was to evaluate the antimicrobial activity of auxiliary chemical substances and natural extracts on candida albicans and enterococcus faecalis inoculated in root canals. | 2017 | 23739849 |
| prevalence of multidrug resistant uropathogenic bacteria in pediatric patients of a tertiary care hospital in eastern india. | today, because systemic infections such as urinary tract infection (uti) affect even pediatric patients, antibiotic resistant bacteria have become a constant clinical challenge. in the present study, a total of 1054 urine samples were collected from pediatric patients over 18 months. from these samples, 510 isolates of pathogenic bacteria were collected using hicrome uti agar. antibiotic sensitivity tests of isolates were performed using the kirby-bauer method. two gram-positive bacteria (entero ... | 2017 | 26617250 |
| antimicrobial activity of aspilia latissima (asteraceae). | we evaluated the antimicrobial activity of aspilia latissima - an abundant plant from the brazilian pantanal region - against candida albicans, candida parapsilosis, candida krusei, candida tropicalis, pseudomonas aeruginosa, enterococcus faecalis, escherichia coli and staphylococcus aureus. the crude extracts and fractions showed activity in all tested microorganisms. the chloroform fraction of the leaves and roots showed the most antimicrobial activity against s. aureus, with an mic of 500 μg/ ... | 2017 | 26691468 |
| antimicrobial activity of aqueous and organic extracts of a saudi medicinal plant: rumex nervosus. | the antimicrobial effect of aerial part of rumex nervosus obtained from the southern region of saudi arabia was evaluated on bacterial strains staphylococcus aureus, methicillin resistant s. aureus, enterococcus faecalis, escherichia coli, pseudomonas aeruginosa, and fungal strain candida albicans. | 2017 | 26681888 |
| evaluation of antibacterial and antifungal activity of new calcium-based cement (biodentine) compared to mta and glass ionomer cement. | to evaluate the antibacterial and antifungal properties of calcium-based cement, biodentine (ca3sio2), compared to commercial glass ionomer cements (gics) and mineral trioxide aggregate (mta). | 2017 | 25657526 |
| evaluation of minimal inhibitory concentration of two new materials using tube dilution method: an in vitro study. | the aim of the study is to evaluate and compare the antimicrobial efficacy of two new materials mta plus and biodentine with proroot mta using tube dilution method. | 2017 | 25829698 |
| comparative evaluation of antimicrobial efficacy of qmix™ 2 in 1, sodium hypochlorite, and chlorhexidine against enterococcus faecalis and candida albicans. | the aim of this study is to compare the antimicrobial efficacy of qmix™ 2 in 1, sodium hypochlorite (naocl), and chlorhexidine (chx) against enterococcus faecalis and candida albicans. | 2017 | 25829691 |
| in vitro antimicrobial and cytotoxic effects of anacardium occidentale and mangifera indica in oral care. | oral health is an integral and important component of general health. infectious diseases such as caries, periodontal, and gingivitis indicate the onset of imbalance in homeostasis between oral micro biota and host. the present day medicaments used in oral health care have numerous side effects. the uses of herbal plants as an alternative have gained popularity due to side effects of antibiotics and emergence of multidrug resistant strains. anacardium occidentale (cashew) and mangifera indica (m ... | 2017 | 25709341 |
| microbiologic evaluation of matricaria and chlorhexidine against e. faecalis and c. albicans. | to evaluate the antimicrobial activity of different concentrations of matricaria chamomilla and chlorhexidine gel against candida albicans and enterococcus faecalis. | 2017 | 26097333 |
| procalcitonin levels in bloodstream infections caused by different sources and species of bacteria. | the aim of this study was to evaluate procalcitonin (pct) diagnostic accuracy in discriminating gram-negative (gn) from gram-positive (gp) bloodstream infections and determining the relationship between pct levels, infection sites, and pathogen types. | 2017 | 27979420 |
| influence of sucrose on growth and sensitivity of candida albicans alone and in combination with enterococcus faecalis and streptococcus mutans to photodynamic therapy. | this study has evaluated the effects of photodynamic inactivation (pdi) using erythrosine as photosensitizer and green light-emitting diode (led) on biofilms of candida albicans alone and in combination with enterococcus faecalis and streptococcus mutans. we have also evaluated the effect of sucrose on biofilm formation and bacterial growth and sensitivity to pdi. biofilms were formed in suspension of 10(6) cells/ml on plates before being grown in broth culture with and without sucrose and incub ... | 2017 | 28389898 |
| evaluation of the role of probiotics in endodontic treatment: a preliminary study. | the principal goal of endodontics is the prevention of periapical infection. acute and chronic apical periodontitis occur due to the persistence of pathogenic microorganisms such as enterococcus faecalis and candida albicans harboring the root canal systems of the teeth. the concept of the use of probiotics in addressing endodontic disease is new and has not been studied adequately. on the basis of the success of probiotics in periodontal treatment, this preliminary work was performed (a) to eva ... | 2017 | 28316949 |
| antimicrobial efficacy of probiotic-containing toothpastes: an in vitro evaluation. | aim to evaluate, in vitro antimicrobial ability of two probiotic toothpastes (one containing lactobacillus paracasei, other containing lactobacillus acidophilus) and one toothpaste without probiotic separately, and in a combination with two different mouthrinses (one containing essential oils and the other containing hexitidine). methods antimicrobial susceptibility was checked by using the ditch method and clinical laboratory standard institute (clsi) guidelines. two different toothpastes with ... | 2017 | 28165440 |
| biological activities of rosmarinus officinalis l. (rosemary) extract as analyzed in microorganisms and cells. | r. officinalis l. is an aromatic plant commonly used as condiment and for medicinal purposes. biological activities of its extract were evaluated in this study, as antimicrobial effect on mono- and polymicrobial biofilms, cytotoxicity, anti-inflammatory capacity, and genotoxicity. monomicrobial biofilms of candida albicans, staphylococcus aureus, enterococcus faecalis, streptococcus mutans and pseudomonas aeruginosa and polymicrobial biofilms composed of c. albicans with each bacterium were form ... | 2017 | 28093936 |
| antibacterial efficacy of azadirachta indica, mimusops elengi and 2% chx on multispecies dentinal biofilm. | to check the antimicrobial activity of azadirachta indica (neem), mimusops elengi (bakul), and chlorhexidine gluconate (chx) on multispecies biofilm of common endodontic pathogens such as streptococcus mutans, enterococcus faecalis, staphylococcus aureus and candida albicans. | 2017 | 26752840 |
| [antibacterial and antifungal activity of salvia apiana against clinically important microorganisms]. | due to the great global concern regarding bacterial resistance to antibiotics, an ongoing search for new molecules having antibacterial activity is necessary. this study evaluated the antibacterial and anticandidal effects of a hexane extract from the root of salvia apiana. salvia extracts at concentrations of 27, 13.5, 6.8 and 3.4mg/ml caused growth inhibition of staphylococcus aureus, streptococcus pyogenes, enterococcus faecalis and candida albicans. however, no significant effect was observe ... | 2017 | 27595508 |
| survival of vaginal microorganisms in three commercially available transport systems. | transport systems are used to collect and maintain the viability of microorganisms. two amies media based transport systems, bd cultureswab™ maxv(+) amies medium without charcoal (maxv(+)) and fisherfinest(®) with amies gel transport medium without charcoal (fisherfinest(®)) were compared to a cary-blair media based transport system, starswab(®) anaerobic transport system (starswab(®)), for their capacity to maintain the viability of 17 clinical microorganisms commonly isolated from the vagina ( ... | 2017 | 28242337 |
| identification of the lyso-form n-acyl intramolecular transferase in low-gc firmicutes. | bacterial lipoproteins are embedded in the cell membrane of both gram-positive and gram-negative bacteria where they serve numerous functions central to cell envelope physiology. lipoproteins are tethered to the membrane by an n-acyl-s-(mono/di)-acyl-glyceryl-cysteine anchor that is variably acylated depending on genera. in several low-gc gram-positive firmicutes, a monoacyl-glyceryl-cysteine with an n-terminal fatty acid (known as the lyso form) has been reported, though how it is formed is unk ... | 2017 | 28320885 |
| a critical role for extracellular dna in dental plaque formation. | extracellular dna (edna) has been identified in the matrix of many different monospecies biofilms in vitro, including some of those produced by oral bacteria. in many cases, edna stabilizes the structure of monospecies biofilms. here, the authors aimed to determine whether edna is an important component of natural, mixed-species oral biofilms, such as plaque on natural teeth or dental implants. to visualize edna in oral biofilms, approaches for fluorescently stained edna with either anti-dna ant ... | 2017 | 27770039 |
| branimycins b and c, antibiotics produced by the abyssal actinobacterium pseudonocardia carboxydivorans m-227. | two new antibiotics, branimycins b (2) and c (3), were produced by fermentation of the abyssal actinobacterium pseudonocardia carboxydivorans m-227, isolated from deep seawater of the avilés submarine canyon. their structures were elucidated by hrms and nmr analyses. these compounds exhibit antibacterial activities against a panel of gram-positive bacteria, including corynebacterium urealyticum, clostridium perfringens, and micrococcus luteus, and against the gram-negative bacterium neisseria me ... | 2017 | 28169531 |
| purification, characterization and functional analysis of the immune molecule lectin from the haemolymph of blue swimmer crab portunus pelagicus and their antibiofilm properties. | the present study reveals purification and characterization of immune molecule lectin from the haemolymph of blue swimmer crab portunus pelagicus (pp-lec). the pp-lec was purified by affinity chromatography with mannose coupled sepharose cl-4b column and it exhibits single band with a molecular weight of 155 kda in sds-page. the surface morphology of purified pp-lec displays the homogeneous nature of protein. a distinct peak with a retention time of 3.3 min was appeared in high performance liqui ... | 2017 | 28110033 |
| in vitro activity of a polyhexanide-betaine solution against high-risk clones of multidrug-resistant nosocomial pathogens. | to determine the in vitro activity of a polyhexanide-betaine solution against collection strains and multidrug-resistant (mdr) nosocomial isolates, including high-risk clones. | 2017 | 27004429 |
| evaluating the effect of peptoid lipophilicity on antimicrobial potency, cytotoxicity, and combinatorial library design. | growing prevalence of antibiotic resistant bacterial infections necessitates novel antimicrobials, which could be rapidly identified from combinatorial libraries. we report the use of the peptoid library agar diffusion (plad) assay to screen peptoid libraries against the eskape pathogens, including the optimization of assay conditions for each pathogen. work presented here focuses on the tailoring of combinatorial peptoid library design through a detailed study of how peptoid lipophilicity relat ... | 2017 | 28291947 |
| a study of pre-operative presence of micro-organisms in affected knee joints of rheumatoid arthritis patients who need total knee arthroplasty. | to evaluate, by way of intraoperative tissue culture and pathological study, the pre-operative presence of micro-organisms in knee joints of patients with rheumatoid arthritis (ra) who need total knee arthroplasty (tka). | 2017 | 27919672 |
| the influence of the autochthonous wastewater microbiota and gene host on the fate of invasive antibiotic resistance genes. | the aim of this study was to assess the fate of invasive antibiotic resistance genes (arg) discharged in wastewater. with this objective, antibiotic resistant bacteria (arb) known to harbor specific arg were inoculated in wastewater (hospital effluent, or municipal raw and treated wastewater) and in ultra-pure sterile water microcosms. two sets of wastewater arb isolates were used - set 1, enterococcus faecalis, acinetobacter johnsonii, klebsiella pneumoniae and set 2, enterococcus faecium, acin ... | 2017 | 27697350 |
| antibacterial activity of tribulus terrestris and its synergistic effect with capsella bursa-pastoris and glycyrrhiza glabra against oral pathogens: an in-vitro study. | in this study, antimicrobial activities of an ethanol extract of tribulus terrestris aloneand in combination with capsella bursa-pastoris and glycyrrhiza glabra were examined in vitro against six pathogens namely streptococcus mutans, streptococcus sanguis, actinomyces viscosus, enterococcus faecalis staphylococcus aureus, and escherichia coli. | 2017 | 26101754 |
| effects of synbiotics on immunity and disease resistance of narrow-clawed crayfish, astacus leptodactylus leptodactylus (eschscholtz, 1823). | the aim of this study was to evaluate the effects of prebiotics (mannanoligosaccharide and xylooligosaccharide), probiotics (enterococcus faecalis and pediococcus acidilactici) and synbiotics for 126 days on the immune responses, hemolymph indices, antioxidant enzymes, and biological responses after a 48-hour aeromonas hydrophila exposure of sub-adult crayfish (11.45 ± 1.87 g). most antibacterial activities were observed in the shell mucus of crayfish fed a diet containing xylooligosaccharide + ... | 2017 | 28363588 |
| molecular viability testing of uv-inactivated bacteria. | the polymerase chain reaction (pcr) is effective at detecting bacterial dna in samples, but it is unable to differentiate viable bacteria from inactivated cells or free dna fragments. new pcr-based analytical strategies have been developed to address this limitation. molecular viability testing (mvt) correlates bacterial viability with the ability to rapidly synthesize species-specific ribosomal rna precursor (pre-rrna) in response to brief nutritional stimulation. previous studies demonstrated ... | 2017 | 28283525 |
| the evaluation of cultivable microbiota profile in patients with secondary endodontic infection before and after photo-activated disinfection. | secondary/persistent endodontic infection can be the outcome of failure of endodontic treatment. photo-activated disinfection (pad) can be a useful adjunct to mechanical and antimicrobial agents in eliminating endopathogenic microorganisms. in this study, we evaluated the effect of pad on diversity and count of microbiota related to secondary/persistent endodontic infections. | 2017 | 28249746 |
| functional studies of e. faecalis rnase j2 and its role in virulence and fitness. | post-transcriptional control provides bacterial pathogens a method by which they can rapidly adapt to environmental change. dual exo- and endonucleolytic activities of rnase j enzymes contribute to gram-positive rna processing and decay. first discovered in bacillus subtilis, rnase j1 plays a key role in mrna maturation and degradation, while the function of the paralogue rnase j2 is largely unknown. previously, we discovered that deletion of the enterococcus faecalis rnjb gene significantly att ... | 2017 | 28384222 |
| cationic net charge and counter ion type as antimicrobial activity determinant factors of short lipopeptides. | to get a better insight into the antimicrobial potency of short cationic lipopeptides, 35 new entities were synthesized using solid phase peptide strategy. all newly obtained lipopeptides were designed to be positively charged from +1 to +4. this was achieved by introducing basic amino acid - lysine - into the lipopeptide structure and had a hydrophobic fatty acid chain attached. lipopeptides were subjected to microbiological tests using reference strains of gram-negative bacteria: escherichia c ... | 2017 | 28203232 |
| d-amino acids reduce enterococcus faecalis biofilms in vitro and in the presence of antimicrobials used for root canal treatment. | enterococcus faecalis is the most frequent species present in post-treatment disease and plays a significant role in persistent periapical infections following root canal treatment. its ability to persist in stressful environments is inter alia, due to its ability to form biofilms. the presence of certain d-amino acids (daas) has previously been shown to reduce formation of bacillus subtilis biofilms. the aims of this investigation were to determine if daas disrupt biofilms in early and late gro ... | 2017 | 28151960 |
| combined chemical and physical transformation method with rbcl and sepiolite for the transformation of various bacterial species. | dna transformation that delivers plasmid dnas into bacterial cells is fundamental in genetic manipulation to engineer and study bacteria. developed transformation methods to date are optimized to specific bacterial species for high efficiency. thus, there is always a demand for simple and species-independent transformation methods. we herein describe the development of a chemico-physical transformation method that combines a rubidium chloride (rbcl)-based chemical method and sepiolite-based phys ... | 2017 | 28185866 |
| hydrocarbon-stapled lipopeptides exhibit selective antimicrobial activity. | antimicrobial peptides (amps) occur widely in nature and have been studied for their therapeutic potential. amps are of interest due to the large number of possible chemical structural combinations using natural and unnatural amino acids, with varying effects on their biological activities. using physicochemical properties from known naturally occurring amphipathic cationic amps, several hydrocarbon-stapled lipopeptides (hslps) were designed, synthesized, and tested for antimicrobial properties. ... | 2017 | 28073163 |
| novel bioactive root canal sealer to inhibit endodontic multispecies biofilms with remineralizing calcium phosphate ions. | the objectives of this study were to: (1) develop a bioactive endodontic sealer via dimethylaminohexadecyl methacrylate (dmahdm), 2-methacryloyloxyethyl phosphorylcholine (mpc) and nanoparticles of amorphous calcium phosphate (nacp) for the first time; and (2) evaluate inhibition of early-stage and mature multispecies endodontic biofilm, bond strength to root canal dentine, and calcium (ca) and phosphate (p) ion release. | 2017 | 28223198 |
| fever and prodromal infections in anti-glomerular basement membrane disease. | anti-glomerular basement membrane (gbm) disease is an autoimmune disorder with rapidly progressive glomerulonephritis and alveolar hemorrhage. fever symptom and prodromal infections have been reported in many cases, but still not been elucidated. | 2017 | 28261931 |
| the use of bacteriophages to biocontrol oral biofilms. | infections induced by oral biofilms include caries, as well as periodontal, and peri-implant disease, and may influence quality of life, systemic health, and expenditure. as bacterial biofilms are highly resistant and resilient to conventional antibacterial therapy, it has been difficult to combat these infections. an innovative alternative to the biocontrol of oral biofilms could be to use bacteriophages or phages, the viruses of bacteria, which are specific, non-toxic, self-proliferating, and ... | 2017 | 28108235 |
| abietane diterpenes from the cones of abies numidica de lannoy ex carrière (pinaceae) and in vitro evaluation of their antimicrobial properties. | eight known abietane diterpenes (1-8) were isolated for the first time from abies numidica cones (pinaceae). the structures of all compounds were established by means of 1d and 2d nmr, and uv spectral analyses. the hydromethanolic extract of a. numidica cones was tested for its antimicrobial activity against 17 gram-positive and gram-negative bacteria and against five yeasts by the use of liquid and solid medium and bioautography methods. the best antimicrobial activity was found against gram-po ... | 2017 | 27237830 |
| antimicrobial assay and genetic screening of selected freshwater cyanobacteria and identification of a biomolecule dihydro-2h-pyran-2-one derivative. | explorations of freshwater cyanobacteria as antimicrobial (bacteria, fungi and methicillin-resistant staphylococcus aureus (mrsa) strains) drug resource using bioassay, nrps (non-ribosomal polypeptide synthetase) and pks (polyketide synthase) genes, as well as in silico approach. | 2017 | 28004519 |
| antimicrobial properties of black grape (vitis vinifera l.) peel extracts against antibiotic-resistant pathogenic bacteria and toxin producing molds. | black grape peel possesses a substantial amount of polyphenolic antimicrobial compounds that can be used for controlling the growth of pathogenic microorganisms. the purpose of this study was to assess antibacterial and antifungal activity of black grape peel extracts against antibiotic-resistant pathogenic bacteria and toxin producing molds, respectively. | 2017 | 26729960 |
| evaluation of health potential of nutritionally enriched kodo millet (eleusine coracana) grown in himachal pradesh, india. | in this study, kodo millet grains were phytochemically investigated for their nutritional and antioxidant potential for their use as functional foods. methanolic extracts of grains showed higher phenolic content and antioxidant activity. tlc studies of the extracted polyphenols from kodo millet showed the predominant presence of ferulic acid and cinnamic acid in the millet. further quantification of these polyphenols was done by using hplc, analysing ferulic acid and cinnamic acid. antagonistic ... | 2017 | 27507461 |
| antibacterial, antioxidant and anti-proliferative properties and zinc content of five south portugal herbs. | crataegus monogyna l. (rosaceae) (cm), equisetum telmateia l. (equisataceae) (et), geranium purpureum vil. (geraniaceae) (gp), mentha suaveolens ehrh. (lamiaceae) (ms), and lavandula stoechas l. spp. luisieri (lamiaceae) (ls) are all medicinal. | 2017 | 27925492 |
| analysis of the expression of nlrp3 and aim2 in periapical lesions with apical periodontitis and microbial analysis outside the apical segment of teeth. | to detect the distribution and expression levels of the nucleotide-binding oligomerization domain-like receptor protein 3 (nlrp3) and the absent in melanoma 2 (aim2) inflammasomes in periapical lesions and to analyse the possible microbial stimuli outside of teeth. | 2017 | 28193569 |
| the antibacterial activity of extracts of nine plant species with good activity against escherichia coli against five other bacteria and cytotoxicity of extracts. | the development of antibiotic resistant bacteria stems from a number of factors, including inappropriate use of antibiotics in human and animal health and their prolonged use as growth promoters at sub-clinical doses in poultry and livestock production. we were interested in investigating plants that could be useful in protecting humans or animals against diarrhoea. we decided to work on extracts of nine plant species with good activity against escherichia coli based on earlier work in the phyto ... | 2017 | 28241818 |
| epidihydropinidine, the main piperidine alkaloid compound of norway spruce (picea abies) shows promising antibacterial and anti-candida activity. | this study reports for the first time promising antibacterial and antifungal effects of epidihydropinidine, the major piperidine alkaloid in the needles and bark of norway spruce, picea abies (l.) karsten. epidihydropinidine was growth inhibitory against all bacterial and fungal strains used in our investigation, showing the lowest mic value of 5.37μg/ml against pseudomonas aeruginosa, enterococcus faecalis, candida glabrata and c. albicans. epidihydropinidine was nearly three times more active ... | 2017 | 28163074 |