BACKGROUND/OBJECTIVE Licorice has been shown to possess cancer chemopreventive effects. However, glycyrrhizin, a major component in licorice, was found to interfere with steroid metabolism and cause edema and hypertension. The roasting process of licorice modifies the chemical composition and converts glycyrrhizin to glycyrrhetinic acid. The purpose of this study was to examine the anti-carcino...

Although it is well known that ultraviolet light exerts a potent carcinogenic effect upon the skin, it is not known whether this effect is exerted directly upon a chromosome or a gene, or whether it is exerted indirectly through the formation of a carcinogenic compound. Indirect evidence that ultraviolet light does not exert its carcinogenic effect through the formation of a chemical resembling...

during the past two centuries, production and consumption of nitrate, especially in agricultural field, have been increased considerably. currently many countries in the world including iran encounter to a high nitrate level in drinking water. the main reason is the seepage of agricultural runoff and municipal and industrial wastewater to water resources, particularly groundwater. from the old ...

A NEW METHOD OF ASSESSING THE DOSE-CARCINOGENIC EFFECT RELATIONSHIP IN PATIENTS EXPOSED TO IONIZING RADIATION. A CONCISE PRESENTATION OF