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Toxicological effects of perfluorooctanoic acid in rats
2008
Kim, Y.H. (Chungnam National University, Daejeon, Republic of Korea) | Cho, E.S. (Chungnam National University, Daejeon, Republic of Korea) | Kim, A.Y. (Chungnam National University, Daejeon, Republic of Korea) | Kim, S.H. (Chungnam National University, Daejeon, Republic of Korea) | Park, M.S. (Chungnam National University, Daejeon, Republic of Korea) | Cho, S.W. (Chungnam National University, Daejeon, Republic of Korea) | Ryu, S.Y. (Chungnam National University, Daejeon, Republic of Korea) | Jung, J.Y. (Chungnam National University, Daejeon, Republic of Korea) | Son, H.Y. (Chungnam National University, Daejeon, Republic of Korea), E-mail: hyson@cnu.ac.kr
Perfluorooctanoic acid (PFOA), a member of the perfluoroalkyl acids that have wide commercial applications, is persistent organic pollutants widely spread throughout the environment and human population. But little is known about the adverse biological effects of the PFOA. In the present study, the toxicological effects of PFOA were investigated in rats. Sprague-Dawley rats (N = 10 in each group) were orally administered with PFOA in drinking water for 4 weeks (0, 100, 200, or 400 ppm in male, and 0, 200, 400, or 800 ppm in female). These female rats given 800 ppm died during the study. PFOA treatment decreased the body weight gain and increased the liver weights in both genders. Serum biochemical investigations revealed significant increases in the aspartate aminotransferase, alanine transaminase, alkaline phosphatase, blood urea nitrogen, total cholesterol, and total bilirubin in male but in female. Serum estradiol (E2) levels were increased in all treated in all treated rats. Histopathologically, hepatocellular hypertrophy around central vein was noted in the liver of treated rats. No significant histopathological change were noted in other organs. In conclusion, PFOA induced toxicological changes in the liver and increased serum E2 level which was not related to histopathological changes of endocrine and reproductive system.
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