The protective effect of different antioxidants and complex mixtures on the consumption of pyrogallol red (PGR) induced by peroxyl radicals was studied in the absence and presence of Triton X-100 micelles. The presence of micelles decreased significantly the protection of PGR afforded by lipophilic antioxidants (β-carotene, octyl gallate), while no effect of micelles was observed for hydrophili...

The design of bioactive plasters is major interest for the amelioration dental and bone cements. In this article, a one pot environmentally friendly strategy based on addition cheap polyphenol-tannic acid (TA) or main phenolic constituent TA, namely pyrogallol (PY)- able to interact with calcium sulfate proposed. Tannic not only modify morphology obtained plaster+TA/PY composites but part it re...

The molybdenum enzymes 4-hydroxybenzoyl-CoA reductase and pyrogallol-phloroglucinol transhydroxylase and the tungsten enzyme acetylene hydratase catalyze reductive dehydroxylation reactions, i.e., transhydroxylation between phenolic residues and the addition of water to a triple bond. Such activities are unusual for this class of enzymes, which carry either a mononuclear Mo or W center. Crystal...

A new sensitive and selective electrochemical sensor was developed for determination of glutathione (GSH) at the surface of carbon paste electrode (CPE) modified with multi-wall carbon nanotubes (MWCNTs) as a sensor and pyrogallol red (PGR) as a mediator. The mechanism of GSH electrochemical behavior at the modified electrode surface was investigated by various electrochemical techniques includ...

BACKGROUND The total protein content of urine is a good index of renal function, but its determination is unreliable. Protein dye-binding assays are simple, but they characteristically lack a uniform response to different proteins. METHODS We investigated a differential response of the Sigma Microprotein Coomassie Brilliant Blue (CBB) and Pyrogallol Red-molybdate (PRM) protein dye-binding ass...

BACKGROUND For clinicians, it is important to rely on accurate laboratory results for patient care and optimal use of health care resources. We sought to explore our observations that urine protein:creatinine ratios (PrCr) ≥30 mg/mmol are seen not infrequently associated with normal pregnancy outcome. METHODS Urine samples were collected prospectively from 160 pregnant women attending high-ri...