These authors contributed equally to this work.
Toxic effects of chromium (VI) by maternal ingestion on liver function of female rats and their suckling pups
Article first published online: 3 MAR 2011
Copyright © 2011 Wiley Periodicals, Inc.
Volume 28, Issue 1, pages 11–20, January 2013
How to Cite
Soudani, N., Bouaziz, H., Sefi, M., Chtourou, Y., Boudawara, T. and Zeghal, N. (2013), Toxic effects of chromium (VI) by maternal ingestion on liver function of female rats and their suckling pups. Environ. Toxicol., 28: 11–20. doi: 10.1002/tox.20692
- Issue published online: 13 DEC 2012
- Article first published online: 3 MAR 2011
- Manuscript Accepted: 26 NOV 2010
- Manuscript Revised: 24 NOV 2010
- Manuscript Received: 15 MAR 2010
- DGRST (Appui à la Recherche Universitaire de Base), Tunisia. Grant Number: ARUB 99/UR/08-73
- potassium dichromate;
- pregnant and lactating rats;
- histopathological studies;
Potassium dichromate (K2Cr2O7) is an environmental contaminant widely recognized as a carcinogen, mutagen, and teratogen toward humans and animals. This study investigated the effects of K2Cr2O7 on the hepatic function of pregnant and lactating rats and their suckling pups. Experiments were carried out on female Wistar rats given 700 ppm of K2Cr2O7 in their drinking water from the 14th day of pregnancy until day 14 after delivery. Hepatotoxicity was objectified by the significant increase in liver malondialdehyde content and a significant accumulation of chromium in this soft tissue. Moreover, exposure to K2Cr2O7 induced a decrease of glutathione, nonprotein thiols, and vitamin C in the liver of mothers and their suckling pups. Alteration of the antioxidant system in the treated group was confirmed by the significant decline of antioxidant enzyme activities such as catalase, glutathione peroxidase, while liver superoxide dismutase activity increased in mothers and decreased in their offspring. It was found that K2Cr2O7 induced liver damages as evidenced by the elevation of plasma aminotransferases, lactate dehydrogenase activities, and bilirubin levels. Impairment of the hepatic function corresponded histologically. Our investigation revealed hemorrhage, leukocytes infiltration cells, and necrosis, which were more pronounced in the hepatocytes of mothers than in those of their suckling pups. © 2011 Wiley Periodicals, Inc. Environ Toxicol, 2013.