Ahmad R Shahverdi

..Harmine was not detected in an n-hexane extract and we did not observe antimicrobial activity from this smoke preparation at the tested concentrations...

..These results signify that the ultra-low concentration of sophoraflavanone G potentiates the antimicrobial action of gentamycin suggesting a possible utilization of this compound in combination therapy against Staphylococcus aureus...

..The highest enhancing effects were observed for vancomycin, amoxicillin, and penicillin G against S. aureus...

..abstract:..

..difficile...

..aureus...

..inactivate the bactericidal activity of nitrofurantoin. Also we demonstrated a synergistic effect between menthol and nitrofurantoin bactericidal activities against nitrofurantoin susceptible Enterobacteriaceae...

..Piperitone was not detected in the essential oil of Humulus lupulus and we could not observe any clear areas in this bioautographic method...

..persica var. latisecta. Since inhibition of MMP activity has been employed in modality therapy in diseases such as cancer, this compound might be promising in the preparation of anti-MMP therapeutic derivatives...

..1 microl of the piperitone fraction decreased the MIC of nitrofurantoin 3-20 fold for the different strains of Enterobacteriaceae tested...

..Comparing the structures of the different coumarins showed that the linear sesquiterpene part of the umbelliprenin structure may be essential for the bleaching effect of S. marcescens ...

..Neither the chloroform extract nor the isolated umbelliprenin fraction showed any antibacterial activity against the test strain at a certain concentration. In contrast, they exhibited depigmentation zones on culture plates...

..coli The enhancing effect of ZnO nanoparticles on the antibacterial activity of ciprofloxacin was concentration-dependent against all test strains. The most enhancing activities were observed in the contents of the 2000 microg/disk...

..striata Boiss. by chromatographic techniques and the structures of compounds were characterized by spectroscopic methods. This is the first report regarding the isolation of these compounds from S. striata...

..It is concluded that the aerial parts of S. striata might contain various polar compounds that inhibit MMPs...

..integerrima fruits. Also, 1-methyl malate increased the bactericidal activity of ampicillin. In the presence of 2 mg/mL of 1-methyl malate the MIC of ampicillin for S. aureus decreased from 128 to 1 microg/mL (128-fold)...

..In this study, we have reported the extracellular synthesis of highly stable silver nanoparticles using three species of dermatophytes: Trichophyton rubrum, Trichophyton mentagrophytes and Microsporum canis...

..coli was linear (r > 0.99) and in the range of 8-20 microg/ml. These results indicate that the proposed method is appropriate for the determination of clavulanic acid in commercial samples and can be used in routine quality control...

..Our findings revealed that the presence of a prenyl moiety in the terpenoid coumarins plays an important role in anti-tumor promoting activity as previously reported for xanthones, coumarins, flavonoids and phenylpropanoids...

..In general, most of the compounds bearing electron withdrawing group at 4-position of the phenyl ring were more active against Gram-positive and most of those having piperazine derivatives were more active against Gram-negative bacteria...