Pagina 1 a partire dal 20 risultati
To find potential inhibitors of human carbonic anhydrase IX (CAIX), we have successfully deigned, synthesized and characterized three p-toluene sulphonylhydrazone derivatives (1-3). Molecular docking studies provided the structural basis of CAIX inhibition and a deeper insight into the
To investigate the course of respiration and circulation in death by toluene inhalation, 25 dogs were allowed to rebreathe toluene vapor in a 1-1 plastic bag expanded with air, and electrocardiogram (ECG), electroencephalogram (EEG), blood pressure (BP) in the femoral artery and intrathoracic
A method has been developed for the synthesis of [18F]fluoroetanidazole, a potential tracer for imaging hypoxia with positron emission tomography. The compound is prepared by an active ester coupling reaction between the 2,3,5,6-tetrafluorophenyl ester of 2-nitroimidazole acetic acid and
Oxidative stress can initiate programmed cell death and contributes to the patho-physiology of a number of diseases. Low micromolar to millimolar concentrations of various antioxidants or free radical scavengers promote cell growth and reduce cellular suicide induced by several functionally distinct
Three wharf workers were acutely exposed to toluene diisocyanate (TDI) during an accidental chemical spill. Toluene is neurotoxic as a solvent, while cyanates can cause nervous tissue injury or death by hypoxia. Chronic symptoms which occurred following the incident included headache, fatigue,
Comparative study covered influence of toluene on behavioral parameters, cognitive abilities and brain bioelectric activity in white rats with normal embryonic development or with prenatal hypoxia. Prenatal hypoxia was simulated by subcutaneous injection of 50 mg/kg sodium nitrite into female white
There was executed the study of the impact of toluene on indices of behavior, cognitive capabilities and bioelectric activity of the brain in white rats with normal course of the period of antenatal development and against background ofprenatal hemic hypoxia Prenatal hypoxia was modeled in pregnant
Bi1-xBaxFeO3 (x = 0.02, 0.04 and 0.07) multiferroic materials with a diameter in the range of 30-40 nm were controllably synthesized by a facile ultrasonic method, with a very short reaction time of 5 min at a low temperature of 30 °C, and the resulting BiFeO3 magnetic nanoparticles (BFO MNPs)
BACKGROUND
Volatile substance abuse is practiced mainly by adolescents and young adults. Its effects are central nervous system excitation followed by central nervous system depression, at times accompanied by seizures. It may cause sudden death as a result of ventricular arrhythmias, reflex vagal
Endothelial cells have been shown to generate primary oxygen-centered free radicals (hydroxyl, superoxide anion) during post-anoxic reoxygenation, but little evidence is available concerning subsequent initiation of lipid peroxidative injury in this model. Electron spin resonance (ESR) spectroscopy
BACKGROUND
Occupational asthma is characterized by airway inflammation and hyperresponsiveness associated with increased vascular permeability. AMP-activated protein kinase (AMPK) has been suggested to be a novel signaling molecule modulating inflammatory responses.
OBJECTIVE
We sought to evaluate
Radicals resulting from one-electron reduction of (N-methylpyridinium-4-yl) methyl esters have been reported to yield (N-methylpyridinium-4-yl) methyl radical, or N-methyl-gamma-picoliniumyl for short, by heterolytic cleavage of carboxylate. This new reaction could provide the foundation for a new
The relationship between ATP and energy charge was studied in individuals of Cirolana borealis under heavy metabolic stress caused by anoxia or exposure to toluene. Prolonged anoxia led to a lowering of the ATP content to about 10% after 4 days, with a simultaneous decrease in energy charge to about
Human underwater activities rely on an adequate supply of breathable compressed gas, usually air, free from contaminants that could cause incapacitation underwater or post-dive or longer-term health effects. Potentially fatal but well-known hazards are hypoxia secondary to steel cylinder corrosion
Nanomaterials have been attracting attention due to the wide range of applications in nanomedicine. Polypyrrole (PPy), a conductive polymer, has been employed in the biomedical field due to its stimulus-responsive properties, although in vivo studies to assess its potential undesirable effects are