Toxicity Screening of Single Dose of Inorganic and Organic Arsenics on Hematological and Serum Biochemical Parameters in Male Cynomolgus Monkeys
2008
Kim, C.Y. (Korea Institute of Toxicology, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea) | Han, K.H. (Korea Institute of Toxicology, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea) | Heo, J.D. (Korea Institute of Toxicology, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea) | Han, E.S. (National Institute of Toxicological Research, Seoul, Republic of Korea) | Yum, Y.N. (National Institute of Toxicological Research, Seoul, Republic of Korea) | Lee, J.Y. (National Institute of Toxicological Research, Seoul, Republic of Korea) | Park, K.S. (Advanced Analysis Center, Korea Institute of Science and Technology, Seoul, Republic of Korea) | Im, Ruth (Chung-Ang University, Seoul, Republic of Korea) | Choi, S.J. (Chung-Ang University, Seoul, Republic of Korea) | Park, J.D. (Chung-Ang University, Seoul, Republic of Korea), E-mail: [email protected]
A screening study of the acute toxicity of organic arsenics such as arsenobetaine and arsenocholine, a product of arsenic methylation metabolite, and inorganic arsenic was carried out to examine hematological and serum biochemical parameters in cynomolgus monkeys (Macaca fascicularis). We found soft and liquid feces, and vomiting in all treated groups with inorganic and organic arsenics. The monkeys in inorganic arsenic-treated group showed a significant increase in vomiting frequency compared with those in three organic arsenics-treated groups. These results suggest that inorganic arsenic might be more toxic than three other organic arsenics tested. The monkeys in inorganic arsenic-treated group showed a decrease in platelet and an increase in monocyte on day 4 and the monkeys in arsenocholine-treated group showed an increase in reticulocyte percentage on day 8. The monkeys in inorganic-treated group also showed decreases in AST and ALT values and the monkeys in arsenobetaine-treated group showed a decrease in AST value and an increase in T-CHO value. However, these hematological and biochemical changes were within the physiological ranges, showing that the single dose of inorganic and organic arsenics did not affect at least hematological and serum biochemical parameters. The present study of toxicity with single dose of arsenics provides valuable indicators for longer term study of toxicity of repeated doses of arsenics in primates.
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