| Literature DB >> 128217 |
Abstract
The damage and repair of rat brain DNA was studied in vivo after a single carcinogenic dose of ethylnitrosourea. Fragmentation of the brain DNA produced by this carcinogen was demonstrated on alkaline sucrose gradients. By the 24th hrs after treatment with ethylnitrosourea the single-strand damage to DNA was not completely repaired. As the highly differentiated cells of the central nervous system do not proliferate, it is possible that during brain carcinogenesis delayed repair of DNA of primitive cells might be needed for the formation of tumor anlage.Entities:
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Year: 1975 PMID: 128217 DOI: 10.1007/bf00312244
Source DB: PubMed Journal: Z Krebsforsch Klin Onkol Cancer Res Clin Oncol ISSN: 0084-5353