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Abstract
Di (2-ehtylhexyl) phthalate (DEHP) is a peroxisome proliferator and a drug having a hypolipidemic effect. The body-weight change of rats treated with DEHP was lower than that of rats in an untreated control group. Expressions of long-chain acyl-CoA dehydrogenase and 3-ketoacyl-CoA thiolase, which are involved in fatty acid oxidation and acetate formation in mitochondria, showed an increase in the liver and testes of rats treated with DEHP. The expression of acetyl-CoA synthetase 1 was significantly decreased in the testes and relatively decreased in the liver, while the expression of acetyl-CoA synthetase 2 was significantly increased in the heart. Furthermore, the expressions of acetyl-CoA carboxylase in heart and testes showed a tendency to decrease. From these results, it is suggested that DEHP-treatment increased fatty acid oxidation and acetate formation in liver and testes, and that acetate utilization was increased in peripheral tissues such as the heart.
