[Lipid peroxidation in the liver microsomes--a sensitive link in body exposure to vat dyes].

Experiments on male white rats showed that the soluble forms of vat dyes such as red brown 'G' (RBG) and bright green 'G' (BGG) delivered into the stomach in a toxic dose (1 g/kg) activate lipid peroxidation (LPO) in liver microsomes. Chronically inhaled dyes hasten of slow down some LPO stages, the changes depending on the concentration, duration of exposure and chemical structure of a compound. Soluble vat dye RBG increases LPO in concentration 5 mg/m3 whereas RBG shows antioxidant action in high and low concentrations.