Developmental toxicity and psychotoxicity of FD and C red dye No. 40 (allura red AC) in rats.
Adult Sprague-Dawley rats were fed diets containing FD and C red dye No. 40 for 2 weeks and were then bred. The diets were continued for the females throughout gestation and lactation and were provided continuously to their offspring thereafter. The treatment groups were: FD and C red dye No. 40 as 0.0, 2.5, 5.0 or 10.0% of the diet, and a positive control group treated with the toxin hydroxyurea on days 2-10 of life with 50 mg/kg/day given s.c. as a positive control group. Parental animals were evaluated for weight and food consumption, and females for reproductive success. The offspring were assessed on a series of tests using the Cincinnati Psychoteratogenicity Screening Test Battery. Additional measures were weight, food consumption, physical landmarks of development, and brain weight. Red-40 significantly reduced reproductive success, parental and offspring weight, brain weight, survival, and female vaginal patency development. Behaviorally, R40 produced substantially decreased running wheel activity, and slightly increased postweaning open-field rearing activity. Overall, R40 produced evidence of both physical and behavioral toxicity in developing rats at doses of up to 10% of the diet.[1]References
- Developmental toxicity and psychotoxicity of FD and C red dye No. 40 (allura red AC) in rats. Vorhees, C.V., Butcher, R.E., Brunner, R.L., Wootten, V., Sobotka, T.J. Toxicology (1983) [Pubmed]
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