Results of long-term carcinogenicity bioassay on vinyl acetate monomer in Sprague-Dawley rats.

نویسندگان

  • Franco Minardi
  • Fiorella Belpoggi
  • Morando Soffritti
  • Adriano Ciliberti
  • Michelina Lauriola
  • Elisa Cattin
  • Cesare Maltoni
چکیده

Vinyl acetate monomer (VAM) was administered in drinking water supplied ad libitum at doses of 5,000, 1,000, and 0 ppm (v/v) to 17-week-old Sprague-Dawley rats (breeders) and to 12-day embryos (offspring). Treatment lasted for 104 weeks; thereafter, animals were kept under control conditions until spontaneous death. VAM was found to cause an increase in total malignant tumors and in carcinomas and/or precursor lesions of the oral cavity, lips, tongue, esophagus, and forestomach. Based on these data, VAM must be considered a multipotent carcinogen.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Biochemical and Histopathological Effects of Acute Exposure to Vinyl Acetate Monomer Vapour in Wistar Rats

Background: Vinyl acetate monomer is a commodity chemical widely used in the manufacturing of various products. The chemical is hazardous and exposure to it may occur in both occupational and non-occupational settings. The aim of this study was to characterize the effects of short-term exposure to Vinyl Acetate Monomer (VAM) vapour on the liver and lungs of Wistar rats. Methods: Mice weighing ...

متن کامل

Induction of type 2 diabetes with high concentration and long term fructose intake in male Sprague-Dawley rats

Introduction: High calorie diet is becoming the most important health problem in most developed western societies. Diets with high caloric contents such as high fructose intake are associated with increasing risk of type two diabetes (T2D) and insulin resistance (IR). However, large differences have been seen in the dose and duration of fructose consumption to induction of T2D. Interest to deve...

متن کامل

Carcinogenicity bioassays of vinyl chloride monomer: a model of risk assessment on an experimental basis.

Data are presented regarding the final results of the Bentivoglio (Bologna) project on long-term carcinogenicity bioassays of vinyl chloride (VC). The experimental project studied the effects of the monomer, administered by different routes, concentrations and schedules of treatment, to animals (near 7000) of different species, strains, sex and age. To our knowledge this is the largest experime...

متن کامل

Bioassay of procarbazine for possible carcinogenicity.

A bioassay of procarbazine for possible carcinogenicity was conducted by administering the test chemical by intraperitoneal injection to Sprague-Dawley rats and B6C3F1 mice. Groups of 34 or 35 males and 35 or 36 females of both species were administered procarbazine at one of two doses, either 15 or 30 mg/kg for rats, and either 6 or 12 mg/kg for mice. Injections were made three times per week ...

متن کامل

Vinyl chloride: inhalation teratology study in mice, rats and rabbits.

These studies evaluated the effects of inhaled vinyl chloride monomer (VCM) on mouse, rat and rabbit embryonal and fetal development. Groups of pregnant CF-1 mice, Sprague-Dawley rats and New Zealand white rabbits were exposed to 500 ppm VCM for 7 hr daily during the period of major organogenesis. Subsequently, other groups of mice were similarly exposed to 50 ppm VCM, and rats and rabbits were...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Annals of the New York Academy of Sciences

دوره 982  شماره 

صفحات  -

تاریخ انتشار 2002