Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
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| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| [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 |
| 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 |
| 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 |
| biological activities of undescribed north american lichen species. | lichens provide a large array of compounds with the potential for pharmaceutical development. in the present study, extracts from three previously undescribed north american lichen species were examined for antioxidant, antibacterial and anticancer activities. | 2017 | 28369962 |
| antimicrobial activity and chemical composition of "kpètè-kpètè": a starter of benin traditional beer tchoukoutou. | the aim of this study was to investigate the antibacterial effect of the crude starter "kpètè-kpètè" and lactic acid bacteria used during the production of "tchoukoutou." to achieve this, a total of 11 lactic acid bacteria and 40 starter samples were collected from four communes. the samples were tested on 29 gram + and - strains by disk diffusion method. the minimum inhibitory and bactericidal concentrations of starter and lactic acid bacteria were determined by conventional methods. organic ac ... | 2017 | 28367445 |
| vitreous hemorrhage as an early sign of acute bacterial endophthalmitis following intravitreal ranibizumab injection. | to report a case of acute bacterial endophthalmitis after antivascular endothelial growth factor injection with a rare presentation of vitreous hemorrhage. | 2017 | 28365853 |
| phosphotransferase systems in enterococcus faecalis og1rf enhance anti-stress capacity in vitro and in vivo. | phosphotransferase systems are common and essential in bacteria, which are in charge of sugar transportation and phosphorylation. however, phosphotransferase systems were found in recent years to be associated with environmental stress factors. this study investigated the role of the mannose/fructose/sorbose phosphotransferase systems in enterococcus faecalis og1rf in adaption to harsh environments by construction of pts mutants. more than one mannose/fructose/sorbose phosphotransferase system w ... | 2017 | 28365379 |
| [bactericidal effects and smear layer removal of er:yag-laser radiation against enterococcus faecalis in root canals]. | to evaluate the cleaning ability of er:yag laser against enterococcus faecalis in root canals. methods: the single-rooted human teeth were sterilized and inoculated with enterococcus faecalis and were randomly assigned into 2 groups. a group of teeth was irrigated with saline during root canal preparation while another group with naclo. after mechanical preparation, the two groups were randomly divided into 3 subgroups according to the different treatments: samples, laser radiation, and calcium ... | 2017 | 28364108 |
| chitosan-propolis nanoparticle formulation demonstrates anti-bacterial activity against enterococcus faecalis biofilms. | propolis obtained from bee hives is a natural substance with antimicrobial properties. it is limited by its insolubility in aqueous solutions; hence ethanol and ethyl acetate extracts of malaysian propolis were prepared. both the extracts displayed antimicrobial and anti-biofilm properties against enterococcus faecalis, a common bacterium associated with hospital-acquired infections. high performance liquid chromatography (hplc) analysis of propolis revealed the presence of flavonoids like kaemp ... | 2017 | 28362873 |
| rapid molecular identification of fecal origin-colonies growing on enterococcus spp.-specific culture methods. | the mei, chromocult(®) enterococci, and m-enterococcus culture-based methods used to assess water quality by the detection of enterococcus spp. were first compared in terms of sensitivity using (1) 41 different type strains of enterococcus spp. and (2) environmental colonies identified by 16s rrna sequencing. then, two specific-rtpcr assays targeting enterococcus spp. and enterococcus faecalis/faecium were tested for their ability to confirm the identity of putative enterococcal colonies. the me ... | 2017 | 28362305 |
| attributable mortality of hospital-acquired bloodstream infections in ireland. | to estimate the attributable mortality of hospital-acquired bloodstream infections (ha-bsi) in ireland. | 2017 | 28359546 |
| prevalence and bacterial isolates of mastitis in dairy farms in selected districts of eastern harrarghe zone, eastern ethiopia. | the study was conducted from november 2015 to april 2016 to estimate the prevalence of clinical and subclinical mastitis in lactating cows, to assess the associated risk factors, and to isolate the major bacterial pathogens in dairy farms in selected district of eastern harrarghe zone, eastern ethiopia. the study was carried out in 384 dairy cows based on data collection, farm visit, animal examination, california mastitis test (cmt), and isolation bacterial pathogens using standard techniques. ... | 2017 | 28352648 |
| synergistic effect of haloduracin and chloramphenicol against clinically important gram-positive bacteria. | the emergence of drug-resistant pathogens has triggered the search for more efficient antimicrobial agents and formulations for treatment of infections. in recent years, combination therapy has become one of the effective clinical practices in treating infections. the present study deals with the effect of haloduracin, a lantibiotic bateriocin and chloramphenicol against clinically important bacteria. the combined use of haloduracin and chloramphenicol resulted in remarkable synergy against a sp ... | 2017 | 28352561 |
| good bugs vs bad bugs: evaluation of inhibitory effect of selected probiotics against enterococcus faecalis. | the main goal of endodontics is the prevention of apical periodontitis. this is due to the presence of persistent pathogenic microorganisms, such as enterococcus faecalis, and its ability to directly cause acute and chronic inflammation in the periapical tissues. lactobacillus has been shown to promote health in the intestines as well as to inhibit the growth of certain problematic oral bacteria. this study explores shifting the established paradigm of endodontic treatment, which has focused on ... | 2017 | 28349910 |
| bacterial colonization in the apical part of extracted human teeth following root-end resection and filling: a confocal laser scanning microscopy study. | the purpose of this study was to evaluate enterococcus faecalis colonization at the apical part of root canals following root-end resection and filling using confocal laser scanning microscopy (clsm). | 2017 | 28349219 |
| primary pyogenic ventriculitis caused by neisseria meningitidis: case report and review of the literature. | background. pyogenic ventriculitis is a well-known complication of meningitis, brain abscesses and intraventricular drains. primary pyogenic ventriculitis is a rare entity and few cases have been described so far. we report the first case of primary pyogenic ventriculitis in an adult caused by neisseria meningitidis and present an overview of all reported adult primary pyogenic ventriculitis cases in the english literature. methods. a pubmed search was performed using the terms ependymitis, vent ... | 2017 | 28348798 |
| in vitro evaluation of the antibacterial activity of five sealers used in root canal therapy. | antibacterial activity is one of the important characteristics of an ideal root canal sealer. the aim of this study was to investigate the antibacterial activity of five different sealers against enterococcus faecalis using two different methods. | 2017 | 28348620 |
| characterization of vancomycin-resistant enterococcus faecalis and enterococcus faecium isolated from fresh produces and human fecal samples. | increased enterococcal infections in hospitals and multidrug-resistant and vancomycin-resistant enterococci (vre) isolated from humans, animals, and food sources raised public health concern on the presence of vre in multiple sources. we performed a comparative analysis of the antimicrobial resistance and genetics of vre isolates derived from fresh produce and human fecal samples. of 389 enterococcus isolates, 8 fecal and 3 produce isolates were resistant to vancomycin and teicoplanin; all harbo ... | 2017 | 28346839 |
| extraction of chitosan and its oligomers from shrimp shell waste, their characterization and antimicrobial effect. | the present study was performed to utilize the shrimp shell waste for chitin and chitosan production, characterization by fourier transform infrared (ft-ir) technique and to evaluate the antimicrobial effects of chitosan oligomers produced by depolymerization of chitosan by nitrous acid. | 2017 | 28344399 |
| distribution of antimicrobial resistance determinants, virulence-associated factors and crispr loci in isolates of enterococcus faecalis from various settings and genetic lineages. | enterococcus faecalis represents an important factor of hospital-associated infections (hais). the knowledge on its evolution from a commensal to an opportunistic pathogen is still limited, thus we performed a study to characterize distribution of factors that may contribute to this adaptation. using a collection obtained from various settings (hospitalized patients, community carriers, animals, fresh food, sewage, water) we investigated differences in antimicrobial susceptibility, distribution ... | 2017 | 28334141 |
| cutaneous burn injury modulates urinary antimicrobial peptide responses and the urinary microbiome. | characterization of urinary bacterial microbiome and antimicrobial peptides after burn injury to identify potential mechanisms leading to urinary tract infections and associated morbidities in burn patients. | 2017 | 28333758 |
| ecological impact of ciprofloxacin on commensal enterococci in healthy volunteers. | the ecological impact of ciprofloxacin on commensal enterococci is unknown. | 2017 | 28333351 |
| high incidence of virulence factors among clinical enterococcus faecalis isolates in southwestern iran. | over the past two decades, enterococci have emerged as an important agent responsible for hospital acquired infection. several virulence factors contribute to the adherence, colonization, evasion of the host immune response, and pathogenicity and severity of the infection. enterococcus faecalis is the most common and virulent species causing infections in hospitalized patients. the aim of the present study was to examine the prevalence of genes encoding virulence factors and antimicrobial resist ... | 2017 | 28332345 |
| porphyromonas gingivalis is the most abundant species detected in coronary and femoral arteries. | an association between oral bacteria and atherosclerosis has been postulated. a limited number of studies have used 16s rna gene sequencing-based metagenomics approaches to identify bacteria at the species level from atherosclerotic plaques in arterial walls. the objective of this study was to establish detailed oral microbiome profiles, at both genus and species level, of clinically healthy coronary and femoral artery tissues from patients with atherosclerosis. tissue specimens were taken from ... | 2017 | 28326156 |
| first canadian case report of kidney transplantation from an hiv-positive donor to an hiv-positive recipient. | kidney transplantation has become standard of care for carefully selected patients living with human immunodeficiency virus (hiv) and end-stage renal disease (esrd) in the highly active antiretroviral therapy (haart) era. american and european prospective cohort studies have reported similar patient and graft survival compared with hiv-negative kidney transplant recipients. despite an increased rate of acute rejection, partially due to drug interactions, hiv immunovirologic parameter generally r ... | 2017 | 28321326 |
| negative allosteric regulation of enterococcus faecalis small alarmone synthetase relq by single-stranded rna. | the alarmone nucleotides guanosine pentaphosphate (pppgpp) and tetraphosphate (ppgpp), collectively referred to as (p)ppgpp, are key regulators of bacterial growth, stress adaptation, pathogenicity, and antibiotic tolerance. we show that the tetrameric small alarmone synthetase (sas) relq from the gram-positive pathogen enterococcus faecalis is a sequence-specific rna-binding protein. relq's enzymatic and rna binding activities are subject to intricate allosteric regulation. (p)ppgpp synthesis i ... | 2017 | 28320944 |
| efficacy of telavancin alone and in combination with ampicillin in a rat model of enterococcus faecalis endocarditis. | we first assessed telavancin (tlv) pharmacokinetics after a single subcutaneous dose of 35 mg/kg. the pharmacokinetic data were used to predict a tlv dose that simulates human exposure and the efficacy of tlv was then evaluated using tlv 21 mg/kg q 12 h against enterococcus faecalis og1rf (tlv mic of 0.06 μg/ml) in a rat endocarditis model with an indwelling catheter. therapy was given for 3 days with tlv, daptomycin (dap) or ampicillin (amp) monotherapy and with combinations of tlv plus amp, am ... | 2017 | 28320712 |
| effect of using different vehicles on the physicochemical, antimicrobial, and biological properties of white mineral trioxide aggregate. | this study evaluated the physicochemical, antimicrobial, and biological properties of white mineral trioxide aggregate (mta) mixed with aqueous and propylene glycol extracts of arctium lappa l. and casearia sylvestris sw. | 2017 | 28320540 |
| biofilm formation capability of enterococcal strains causing urinary tract infection vis-a-vis colonisation and correlation with enterococcal surface protein gene. | data regarding differences in biofilm formation among urinary isolates of enterococci causing nosocomial infection versus asymptomatic colonisation is lacking. conflicting data are available for the role of enterococcal surface protein (esp) gene in the development of enterococcal biofilms. | 2017 | 28303818 |
| draft genome sequence of a multidrug-resistant strain of enterococcus faecalis, pm01, isolated from the nest of an american bushtit, psaltriparius minimus. | pathogenic microorganisms associated with avian nests may detrimentally impact parental health and nest success for the nest primary users, potentially neighboring avian or terrestrial species, including humans. here, we report the genome sequence of enterococcus faecalis strain pm01, isolated from a failed nest of american bushtits, psaltriparius minimus. | 2017 | 28302771 |
| purulent pericarditis as a complication of bacteraemic enterococcus faecalis urinary tract infection. | purulent pericarditis is a rare clinical entity in the modern antibiotic era. the most common portal of entry is thought to be direct extension from a primary lung source and is usually caused by staphylococcus aureus, streptococcus pneumoniae or haemophilus influenzae we report the case of a man aged 69 years who presented with purulent pericarditis due to enterococcus faecalis likely caused by haematogenous spread from a urinary tract source. urgent pericardiocentesis was vital and restored hi ... | 2017 | 28298381 |
| the impact of a 940 nm diode laser with radial firing tip and bare end fiber tip on enterococcus faecalis in the root canal wall dentin of bovine teeth: an in vitro study. | this in vitro study aimed to compare the bactericidal effect of two different laser delivery systems, a radial firing tip (rft) and bare end fiber tip (bft) used with the 940 nm diode laser on enterococcus faecalis inoculated onto bovine radicular dentin. | 2017 | 28294701 |
| successful salvage treatment of native valve enterococcus faecalis infective endocarditis with telavancin: two case reports. | infective endocarditis (ie) one-year mortality rates approach 40%. here, we report two native valve enterococcus faecalis ie cases in patients successfully treated with telavancin. an 88-year-old with mitral valve endocarditis and a penicillin allergy, initially treated with intravenous vancomycin, was switched to telavancin. a 69-year-old, who previously received amoxicillin and intravenous vancomycin for presumed enterococcal bacteraemia, was diagnosed with dual valve endocarditis for which he ... | 2017 | 28293958 |
| sonication of arthroplasty implants improves accuracy of periprosthetic joint infection cultures. | there is evidence that sonication of explanted prosthetic hip and knee arthroplasty components with culture of the sonication fluid may enhance diagnostic sensitivity. previous studies on the use of implant sonicate cultures have evaluated diagnostic thresholds but did not elaborate on the clinical importance of positive implant sonicate cultures in the setting of presumed aseptic revisions and did not utilize consensus statements on periprosthetic joint infection (pji) diagnosis when defining t ... | 2017 | 28290115 |
| antimicrobial properties of copper nanoparticles and amino acid chelated copper nanoparticles produced by using a soya extract. | this paper reports a comparison of the antibacterial properties of copper-amino acids chelates and copper nanoparticles against escherichia coli, staphylococcus aureus, and enterococcus faecalis. these copper-amino acids chelates were synthesized by using a soybean aqueous extract and copper nanoparticles were produced using as a starting material the copper-amino acids chelates species. the antibacterial activity of the samples was evaluated by using the standard microdilution method (clsi m100 ... | 2017 | 28286459 |
| fosfomycin and comparator activity against select enterobacteriaceae, pseudomonas, and enterococcus urinary tract infection isolates from the united states in 2012. | fosfomycin is a broad-spectrum cell wall active agent that inhibits the mura enzyme involved in peptidoglycan synthesis and is fda-approved for treatment of uncomplicated urinary tract infections (utis) caused by escherichia coli and enterococcus faecalis in women. data regarding the susceptibility of recent uti isolates to fosfomycin are limited. | 2017 | 28285420 |
| detection of novel oxazolidinone and phenicol resistance gene optra in enterococcal isolates from food animals and animal carcasses. | altogether 7720 enterococcus faecalis and 3939 e. faecium isolated from food animals and animal carcasses during 2003-2014 in korea were investigated to determine if linezolid-resistant (lr) enterococci (≥8μg/ml) are present. overall, 12 e. faecalis and 27 e. faecium recovered from chickens (n=32), pigs (n=6), and cattle (n=1) were resistant to linezolid and were further characterized using molecular methods most lr isolates were also resistant to chloramphenicol (97.44%) and florfenicol (92.31% ... | 2017 | 28284617 |
| chemical composition, antioxidant and antibacterial activities of tamarix balansae j. gay aerial parts. | a previously undescribed phenolic sulphate ester, potassium 34-dihydroxy-3-methoxybenzoic acid methyl ester-5-sulphate (1), along with nine known flavonoids, kaempferol-3-o-potassium sulphate-4',7-dimethyl ether (2), kaempferol-4',7-dimethyl ether (3), rhamnocitrin-3-o-potassium sulphate (4), rhamnocitrin (5), kaempferol (6), quercetin (7), afzelin (8), quercetin-3-o-α-l-rhamnopyranoside (9) and luteolin-3'-o-potassium sulphate (10) were isolated from the aerial parts of tamarix balansae. struct ... | 2017 | 28281364 |
| ultraviolet (uv)-reflective paint with ultraviolet germicidal irradiation (uvgi) improves decontamination of nosocomial bacteria on hospital room surfaces. | an ultraviolet germicidal irradiation (uvgi) generator (the torch™, clordisys solutions, inc.) was used to compare the disinfection of surface coupons (plastic from a bedrail, stainless steel, and chrome-plated light switch cover) in a hospital room with walls coated with ultraviolet (uv)-reflective paint (lumacept) or standard paint. each surface coupon was inoculated with methicillin-resistant staphylococcus aureus (mrsa) or vancomycin-resistant enterococcus faecalis (vre), placed at 6 differe ... | 2017 | 28278065 |
| effect of photodynamic therapy in combination with various irrigation protocols on an endodontic multispecies biofilm ex vivo. | to analyse the antibacterial effect of photodynamic therapy (pdt) in combination with various irrigation protocols on a multispecies biofilm in root canals ex vivo. | 2017 | 28276583 |