First experimental demonstration of the multipotential carcinogenic effects of aspartame administered in the feed to Sprague-Dawley rats

Environmental Health Perspectives
M SoffrittiAnna Rigano

Abstract

The Cesare Maltoni Cancer Research Center of the European Ramazzini Foundation has conducted a long-term bioassay on aspartame (APM), a widely used artificial sweetener. APM was administered with feed to 8-week-old Sprague-Dawley rats (100-150/sex/group), at concentrations of 100,000, 50,000, 10,000, 2,000, 400, 80, or 0 ppm. The treatment lasted until natural death, at which time all deceased animals underwent complete necropsy. Histopathologic evaluation of all pathologic lesions and of all organs and tissues collected was routinely performed on each animal of all experimental groups. The results of the study show for the first time that APM, in our experimental conditions, causes a) an increased incidence of malignant-tumor-bearing animals with a positive significant trend in males (p < or = 0.05) and in females (p < or = 0.01), in particular those females treated at 50,000 ppm (p < or = 0.01); b) an increase in lymphomas and leukemias with a positive significant trend in both males (p < or = 0.05) and females (p < or = 0.01), in particular in females treated at doses of 100,000 (p < or = 0.01), 50,000 (p < or = 0.01), 10,000 (p < or = 0.05), 2,000 (p < or = 0.05), or 400 ppm (p < or = 0.01); c) a statistically significant i...Continue Reading

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Citations

Sep 13, 2006·Environmental Health Perspectives·Myra L Karstadt
Mar 21, 2007·Environmental Health Perspectives·Eyassu G Abegaz
Sep 7, 2007·Environmental Health Perspectives·Morando SoffrittiMichelina Lauriola
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Methods Mentioned

BETA
chromosomal aberration
chromosomal aberrations

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