evaluate the toxic and carcinogenic potential of dibutyl phthalate and di(2-ethylhexyl)phthalate

本项目的目的是评估两种邻苯二甲酸酯增塑剂，邻苯二甲酸二丁酯（DBP）和邻苯二甲酸二（2-乙基己基）酯（DEHP）的慢性毒性和致癌性。2-DBP和DEHP的慢性毒性和致癌性研究处于活体阶段。这两项研究都包括围产期接触（妊娠期和哺乳期接触）。人类可能通过环境类似地暴露于这些化合物。围产期接触发生在发育的关键时期，与仅从成年期开始接触相比，可能导致毒性/致癌性的差异。在DBP研究中，在2年研究开始前，大鼠在围产期暴露，而在小鼠中进行标准研究。DEHP包括两项为期2年的大鼠研究，一项有围产期暴露，另一项没有，以评价围产期暴露的影响。DBP研究处于组织病理学/报告撰写阶段。DEHP研究处于活体阶段。 关键词：毒性、致癌性、饮食、围产期、邻苯二甲酸酯、邻苯二甲酸二（2-乙基己基）酯。

The goal of this project is to evaluate the chronic toxicity and carcinogenicity of two phthalate plasticizers, dibutyl phthalate (DBP) and di(2-ethylhexyl)phthalate (DEHP), following dietary exposures. 2-Year chronic toxicity and carcinogenicity studies of DBP and DEHP are in the in life phase. Both of these studies include perinatal exposures (exposure during gestation and lactation). Humans are likely to be similarly exposed to these compounds through the environment. Perinatal exposure occurs during critical periods of development and can result in differences in toxicity/carcinogenicity as compared to exposure starting only from adulthood. In the DBP study, rats were exposed perinatally prior to the start of 2-year study, while standard studies are being conducted in mice. DEHP includes two 2-year rat studies, one with perinatal exposure and one without, to evaluate the effect of perinatal exposure. The DBP studies are in the histopathology/report writing phase. The DEHP studies are in the in life phase. Keywords: toxicity, carcinogenicity, diet, perinatal, phthalate, dibutyl phthalate, di(2-ethylhexyl)phthalate.