Introduction: This interventional in-vitro study aimed to evaluate the antimicrobial activity of a new Nano Zinc OxideEugenol (NZOE) sealer in comparison with AH26 and Pulpdent common root canal sealers against endodontic pathogens. Methods: The antimicrobial efficacy of three sealers(NZOE, AH26 and Pulpdent)  against Enterococcus faecalis (ATCC 29212), Escherichia coli (ATCC 25922), Streptococ...

Differential transcriptional analysis of the cyanobacterium Cyanothece sp. ATCC 51142 during light-dark and continuous-light growth.Differential transcriptional analysis of the cyanobacterium Cyanothece sp. ATCC 51142 during light-dark and continuous-light growth.

Purpose: To evaluate the in vitro effects of combining kanamycin and metronidazole against resistant bacteria. Methods: The influence of combining kanamycin and metronidazole against Gram-positive and Gramnegative bacteria was assessed by agar diffusion, checkerboard and time-kill assays. Results: The test isolates were highly resistant, with minimum inhibitory concentration (MIC) ranging betwe...

Antimicrobial cationic peptides are thought to be an important self-defense mechanism against infectious agents for plants, animals, and bacterial species (2). While cationic peptides vary in their mechanisms of action, most are reactive with bacterial cytoplasmic membranes (2). Omiganan pentahydrochloride (formerly MBI 226), a novel topical mammal-derived antimicrobial peptide (sequence: ILRWP...

Endophytic fungi from three commonly found seagrasses in southern Thailand were explored for their ability to produce antimicrobial metabolites. One hundred and sixty endophytic fungi derived from Cymodoceaserrulata (Family Cymodoceaceae), Halophilaovalis and Thalassiahemprichii (Family Hydrocharitaceae) were screened for production of antimicrobial compounds by a colorimetric broth microdiluti...

OBJECTIVES To evaluate the suitability of disc diffusion (DD) assay for testing posaconazole activity and to corroborate its activity against recently isolated yeasts by the CLSI reference microdilution M27-A2 method. METHODS A total of 224 yeast isolates (7 species with 52 to 11 isolates each, and 15 species with 1 to 6 isolates) were evaluated, 125 were recent bloodstream isolates, 30 isola...

Propolis ethanolic solutions are the most used propolis products on the market for the treatment of minor ulcers in the mouth, angina, thrush or skin infections. Since it is still an unofficial drug in pharmacy, we analyzed the contents of flavonoids in ten commercially available ethanolic solutions of propolis from the Croatian market using two complementary colorimetric methods. Antimicrobial...

Comparison of both 16S rRNA coding sequences and DNA-DNA hybridization of ten strains of alpha-subclass of Proteobacteria currently classified as strains of Paracoccus denitrificans has shown that they fall into two groups which are distinct from each other at the species level. Comparison with published data on the cytochrome c profiles and other 16S rRNA coding sequences in the literature has...