Effect of beta-naphthoflavone and phenobarbital on the nephrotoxicity of chlorotrifluoroethylene and 1,1-dichloro-2,2-difluoroethylene in the rat.

The role of cytochrome P450 activity in the nephrotoxicity of chlorotrifluoroethylene (CTFE) and 1,1-dichloro-2,2-difluoroethylene (DCDFE) was investigated in the male rat. Hepatic cytochrome P450 1A1 and principally P450 2B1/2 were induced by beta-naphthoflavone and phenobarbital, respectively. Nephrotoxicity was evaluated by investigating urine biochemical parameters, kidney histochemistry and histopathological modifications.

The sensitizing potential of various biocides in the guinea pig maximization test.

Biocides are chemicals used as preservatives added to most cosmetics and toiletries and to industrial water-based products such as cutting fluids, paints and glues. There are numerous biocide formulations used in water-based metalworking fluids. All these products, characterized by a low molecular weight, can react with endogenous proteins and may induce allergic contact dermatitis.