A functional impairment in vasodilator tone may be important in the pathogenesis and/or maintenance of elevated peripheral vascular resistance in hypertension. Previous studies of hypertensive subjects have demonstrated impaired beta-adrenergic-mediated vasodilation paralleling a reduction in lymphocyte beta-adrenergic-stimulated adenylyl cyclase activity. We have suggested that this impairment...

The synergistic solvent extraction system comprising tri-n-butyl phosphate (TBP) and FeCl3 has been intensively studied for selective of Li(I) from Mg(II)-rich brine. occurs via the formation an ion-pair complex [Li(TBP)x][FeCl4] in which negatively charged [FeCl4]? neutralizes positively [Li(TBP)x]+. Counterintuitively, many other metal chlorides give much lower efficiency than FeCl3, although...

Stabilization and inhibition of hepatic microsomal glucose-6-P phosphohydrolase (EC 3.1.3.9) by F- requires the presence of Al3+ ions. At millimolar concentrations, reagent grade NaF inhibited glucose-6-P hydrolysis and protected the enzyme against inactivation induced by heat in the presence of 0.025% (w/v) Triton X-100 or by reaction of the catalytic site with the histidine-specific reagent, ...

Metals such as aluminum and Fluoride have been implicated in the etiology of several neurodegenerative disorders. Resveratrol, a natural polyphenol, exerting a wide range of biological and pharmacological activities including its antioxidative properties against neurodegenerative disorders through its ability to lessen oxidative stress. Rats were divided into 4 groups. Group –I was served as co...

Despite the reports on safety concerns regarding the relationship between aluminum salts and neurological and bone disease, many countries continue to use aluminum as phosphate binders among patients with renal failure. In search for a diet supplement that could reduce aluminum toxicity related to renal failure, we carried out this prospective animal study in which the fenugreek seeds were asse...

Using a rotating vitreous carbon disk electrode, the kinetic parameters for chlorine reduction in an AlCl3 KCl-NaC1 (57.5-12.5-30 mol g%) melt were determined. It was found that the reduction of chlorine occurs according to the paths: C1 2 + e C1 + Clad s ads with the first step being most probably rate determining. The apparent exchange currents were (1 ± 0.15)10 -4A/cm 2 at 130 °C and (2.1 ± ...

The paper reports on experimental modeling of the colloid system composition in natural groundwater. Iron hydroxide is found to be the main component of natural colloid systems. It is shown that silicon compounds and dissolved organic substances (DOS) stabilize iron hydroxide (III), forming a stable colloid system, and preclude coagulation. The presented results suggest that CaCl2 and AlCl3 ele...

An aluminum metal, both native and with a very thin oxide film, was investigated as an anode for aluminum-ion batteries. Investigations were carried out in an acidic ionic liquid electrolyte, composed of AlCl3 in 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl), with β-MnO2/C as a cathode. The battery based on Al metal with a very thin oxide film showed high capacity and stable surface corrosion.

A facile and efficient approach for the synthesis of a variety of acridines via the tandem coupling/cyclization of substituted 2-bromobenzaldehydes and anilines is described. The reaction can be accomplished with ease in the presence of a catalytic amount of Pd2(dba)3 and diphosphine ligand dppf, providing a broad range of substituted acridines in good to excellent yields (up to 99%). The Lewis...