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Effects of ethylnitrosourea administration during pregnancy on three subsequent generations of bdvi rats

✍ Scribed by L. Tomatis; V. Ponomarkov; V. Turusov

Publisher: John Wiley and Sons
Year: 1977
Tongue: French
Weight: 581 KB
Volume: 19
Category: Article
ISSN: 0020-7136
DOI: 10.1002/ijc.2910190214

No coin nor oath required. For personal study only.

✦ Synopsis

A single dose of 40 mg/kg of N-nitrosoethylurea (ENU) was administered to BDVI rats on the 16th day of pregnancy. The first generation descendants (F1) were mated on a brother-to-sister system to produce a second generation (F2) which was then mated to produce a third generation. A high incidence of nervous tissue tumors and a few kidney tumours were observed in F1 descendants. A few nervous tissue tumours were observed in F3 but not in F2 descendants. These results partially confirm previous observations obtained with 7,12-dimethylbenz(a)anthracene in mice and nitrosomethylurea in rats and indicate that prenatal exposure to a chemical carcinogen may result in an increased cancer risk which can persist for more than one generation.

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