Chlorpyrifos(CPF)and cadmium(Cd)are widespread environmental *** acute toxicity of chlorpyrifos and cadmium are well ***,the combined toxicity of CPF and Cd,in particular the metabolite changes and biomarkers,was not ...
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Chlorpyrifos(CPF)and cadmium(Cd)are widespread environmental *** acute toxicity of chlorpyrifos and cadmium are well ***,the combined toxicity of CPF and Cd,in particular the metabolite changes and biomarkers,was not *** the present study,we used metabolomics approach to study the combined toxicity of CPF and Cd after subchronic exposure at low dose to rats and to identify potential biomarkers for CPF and Cd intoxication in serum and urine of *** rats were treated with different doses of CPF,Cd,and their mixtures for 90 days by oral *** in urine and serum were analyzed using *** serum,CPF treatment decreased fructose and induced serine levels;Cdtreatment decreased propanoic acid,cysteine,glutamine,and serine *** the urine,CPF induced creatinine and phenylacetyl glycine levels and decreased benzoic acid;Cd treatment increased benzoic acid and decreased mannose;CPF plus Cd treatment induced anthranllic acid,ribitol and glucose *** results suggested that CPF and Cd mainly displayed an antagonistic interaction.
甲基丙烯酸环氧丙酯(glycidyl methacrylate,GMA)是一种应用广泛的双官能团单体.大鼠急性经口LD50 为290~827 mg/kg bw,大鼠急性吸入LC0 为2394 mg/m3(4h);具有明显的皮肤、眼、呼吸道的刺激性,以及强致敏性;体内外多项致突变试验呈阳性,可致基因突变、染色体畸变等,体外诱导多种哺乳动物细胞恶性转化;存在明显的生殖毒性;对大鼠和小鼠有致癌性,世界卫生组织国际癌症研究中心(International Agency for Research on Cancer,IARC)将GMA 分类为Group 2A.对GMA 毒性以及作用机制的研究将为作业场所空气中职业接触限值的制定及对职业人群和易感人群采取相应防护措施提供可靠的实验依据.
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