نتایج جستجو برای: toluene
تعداد نتایج: 8611 فیلتر نتایج به سال:
conclusions according to the results, cop is an efficient and rapid method for removing of toluene from aqueous solutions. results the analysis of variance (anova) of the toluene degradation by cop/mgo nanoparticles showed f-value of 19.53 for the quadratic model indicating that the prepared model is significant. the predicted result showed that maximum degradation of toluene (~99.99%) could be...
Toluene and its metabolites have been studied with respect to their reactive oxygen species-enhancing potential in isolated systems and in vivo. The induction of reactive oxygen species (ROS) production was assayed using the probe 2',7'-dichlorodihydrofluorescin diacetate (DCFH-DA). Intraperitoneal injection of toluene, benzyl alcohol or benzaldehyde caused a significant elevation in the rate o...
UNLABELLED BACKGROUND Biological monitoring is used to assess toluene exposure in medical examinations. The American Conference of Industrial Hygienists, Japanese Society for Occupational Health and Deutsche Forschungsgemeinschaft have proposed various biological exposure determinants, such as toluene in blood and urine, and o-cresol in urine. Toluene in blood is a common biomarker among the...
background: toluene is a harmful substance still being used as a solvent and catalyst in many industries that can increase the level of urinary hippuric acid (uha). this study was designed to examine the level of toluene and uha among workers of industrial site in seven companies in sidoarjo, indonesia and to analyze the risk factors for abnormal uha. methods: this study was an analytical cross...
Drugs of abuse increase the activity of dopaminergic neurons of the ventral tegmental area (VTA), and output from the VTA is critical for both natural and drug-induced reward and reinforcement. Ethanol and the abused inhalant toluene both enhance VTA neuronal firing, but the mechanisms of this effect is not fully known. In this study, we used extracellular recordings to compare the actions of t...
In studies of Pseudomonas putida IH-2000, a toluene-tolerant microorganism, membrane vesicles (MVs) were found to be released from the outer membrane when toluene was added to the culture. These MVs were found to be composed of phospholipids, lipopolysaccharides (LPS), and very low amounts of outer membrane proteins. The MVs also contained a higher concentration of toluene molecules (0.172 +/- ...
Given its vapor pressure, toluene tends to partition to the atmosphere. Automobile emissions are the principal source of toluene in ambient air, with levels fluctuating in proportion to automobile traffic. Toluene can also be a common indoor contaminant, and indoor air concentrations are often several times higher than outside air. This is likely due to release of toluene from common household ...
Construction of a hybrid strain which is capable of mineralizing components of a benzene, toluene, and p-xylene mixture simultaneously was attempted by redesigning the metabolic pathway of Pseudomonas putida. Genetic and biochemical analyses of the tod and the tol pathways revealed that dihydrodiols formed from benzene, toluene, and p-xylene by toluene dioxygenase in the tod pathway could be ch...
Inhalation of toluene-based products is popular among young adults. It has been shown to have a variety of adverse effects on several organs and systems. Although the heart seems to be a sensitive target organ to toluene, cardiotoxicity has often been ignored, especially in cases of acute toluene abuse, with relatively low concentrations. Thereby, routine cardiac examination and echocardiograph...
Toluene is widely used as an industrial solvent and is usually produced in the processes of making gasoline. Inhaled toluene may cause genotoxicity and other adverse health effects. This study aimed to ascertain the relation between blood toluene exposure and genotoxicity, as measured by sister chromatid exchange (SCE), by comparing gasoline station workers to controls. Mean blood toluene and S...
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