## Abstract Four nitrosamines were tested as lung carcinogens in SWR mice, and the results were compared with those obtained for urethan. In general, two doses were injected intraperitoneally into adult mice. Dimethylnitrosamine (DMN) and diethylnitrosamine (DEN) were about as highly active as uret
Carcinogenicity of nitrosamines and methanesulphonate esters given intraperitoneally, in RF mice
β Scribed by N. K. Clapp
- Book ID
- 102276196
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- French
- Weight
- 383 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0020-7136
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Single injections of dimethylnitrosamine (DMN), diethylnitrosamine (DEN), methyl methanesulfonate (MMS), and ethyl methanesulphonate (EMS) were given intraperitoneally to male RF mice at various doses. DEN induced lung adenomas, liver hepatomas and forestomach tumors (squamousβcell carcinomas and papillomas) at all doses, and Leydigβcell tumors of the testis at the highest dose given. DMN, while increasing lung tumor incidence, failed to induce liver tumors when given intraperitoneally βin contrast to high incidences obtained by oral administration. The reason for this difference is not obvious at this time. MMS and EMS were not carcinogenic as used in this study. None of these alkylating agents was leukemogenic.
π SIMILAR VOLUMES
## Abstract The time course of development of thymic lymphoma, which occurs spontaneously in mice of the AKR strain, is accelerated by the methylating agents __N__βmethylβ__N__βnitrosourea (MNU) and methyl methanesulphonate (MMS). Since MNU is a potent mutagen inducing G β A transition mutations an
Toxicology and carcinogenesis studies of pentaerythritol tetranitrate (PETN), an organic nitrate used in explosives and as a therapeutic agent for angina pectoris, were conducted by administering diets containing PETN,NF (National Formulary Grade, a 1:4 mixture of PETN and lactose) to both sexes of