conclusions: this study detected multiple drug resistance in pseudomonas aeruginosa including resistance to β-lactams, aminoglycosides, and fluoroquinolones. therefore, identification of drug resistance patterns in p. aeruginosa and detection of pan-resistant producing isolates are of great importance in prevention and control of infections in burn center ward. background: serious infections by...

Alfavaca, Ocimum gratissimum (Labiatae), ap­ pears to have been introduced by slaves from Afri­ ca by the Portuguese in the 16th or 17th century or it may be a geographical variety native to Brazil, its origin is still doubt. The shrub-like plant is cul­ tivated in the country-sides of the State of Para and sold in the “Ver-o-peso” market in Belem. It is utilized as a condiment in regional dish...

This study reports on the attractiveness of volatile chemicals to green lacewings (Neuroptera: Chrysopidae) and flower flies (Diptera: Syrphidae) as measured by catch on yellow sticky traps within corn [Zea mays L. (Cyperales: Poaceae)] and soybean [Glycine max (L.) Merr. (Fabales: Fabaceae)] plots. Green lacewings were attracted to eugenol-baited traps in two tests in soybean plots. Follow-up ...

Eugenol is a natural pungent substance and the main component of clove oil, with vasorelaxant action. To elucidate some of the possible mechanisms involved in this action isometric tension was measured in aortic rings from male Wistar rats precontracted with phenylephrine (PHE, 10(-7) M) or KCl (75 mM). Responses to increasing concentrations of eugenol (10(-6)-10(-2) M) were obtained in the pre...

Phytochemicals have been extensively researched for their potential anticancer effects. In previous study, direct exposure of rat liver mitochondria to eugenol main ingredient of clove, uncoupled mitochondria and increased F0F1ATPase activity. In the present study, we further investigated the effects of eugenol on MCF-7 cells in culture. Eugenol demonstrated: a dose-dependent decrease in viabil...

Many plants synthesize the volatile phenylpropene compounds eugenol and isoeugenol to serve in defense against herbivores and pathogens and to attract pollinators. Clarkia breweri flowers emit a mixture of eugenol and isoeugenol, while Petunia hybrida flowers emit mostly isoeugenol with small amounts of eugenol. We recently reported the identification of a petunia enzyme, isoeugenol synthase 1 ...

The oxidation of eugenol (4-allyl-2-methoxyphenol) by horseradish peroxidase was studied. Following the initiation of the reaction with hydrogen peroxide, eugenol was oxidized via a one-electron pathway to a phenoxyl radical which subsequently formed a transient, yellow-colored intermediate which was identified as a quinone methide. The eugenol phenoxyl radical was detected using fast-flow elec...

OBJECTIVE The aim of this study was to estimate the cheminformatics and qualitative structure-activity relationship (QSAR) of cinnamaldehyde and eugenol. The effects of cinnamaldehyde and eugenol on the viability, doubling time and adipogenic or osteogenic differentiations of human adipose-derived mesenchymal stem cells (hASCs) were also investigated. MATERIALS AND METHODS QSAR and toxicity i...

Genetic variability related to the catechol-O-methyltransferase (COMT) gene (Val158Met polymorphism) has received increasing attention as a possible modulator of cognitive control functions. Recent evidence suggests that the Val158Met genotype may differentially affect cognitive stability and flexibility, in such a way that Val/Val homozygous individuals (who possess low prefrontal dopamine lev...

It is unclear what neural processes induce individual differences in perceptual organization in different modalities. To examine this issue, the present study used different forms of bistable perception: auditory streaming, verbal transformations, visual plaids, and reversible figures. We performed factor analyses on the number of perceptual switches in the tasks. A 3-factor model provided a be...