The determination of the optimum parameters for hydroxyl radicals ({radical dot}OH) formation by a TiO2 solution has been investigated by measuring the emitted fluorescence after the reaction with terephthalic acid has occurred. After UV irradiation, the terephthalic acid was transformed into 2-hydroxyterephthalic acid whose fluorescence is directly proportional to the generated {radical dot}OH. Optimization of hydroxyl radicals' formation using

In the presence of free radicals, low-density lipoproteins (LDL) undergo oxidation that leads to the formation of lipoperoxides, which cause various damaging effects. Starting from the classical oxygen radical absorption capacity (ORAC) method, a modified method was formulated to develop a laboratory model that is able to deliver information about the use of polyphenols as nutrient supplements. The aim of this work was to establish the possible inhibition

Due to the implication of S-adenosylmethionine (SAM) and S-adenosylhomocysteine (SAH) on essential metabolic pathways of hormones, nucleic acids, several drug types, etc. and also due to the importance of the value of SAM/SAH ratio in incipient diagnosis of various pathological manifestation, the development of a proper method for quantification of these compounds is very important. We report here the development of two analytical methods high-performance