Biomaterial Database

Enhancement by testosterone of dimethylnitrosamine carcinogenesis in lung, liver and kidney of inbred NZR/Gd female rats. 1983

R F Noronha, and C M Goodall

The effect of androgenic treatments on single dose dimethylnitrosamine (DMN) carcinogenesis was studied in 60 female NZR/Gd inbred rats, 25 of which were intact and received DMN 20 mg/kg i.p. in one dose after 48 h starvation, while 35 received DMN combined with testosterone injections every 4 weeks beginning 15 days before or after DMN, and in 29 rats combined also with ovariectomy. Sixteen female rats underwent ovariectomy and received testosterone every 4 weeks with no DMN. There were also 107 untreated intact contemporaneous control female rats. A single dose of DMN induced alveologenic lung (16%), hepatocellular (24%) and kidney epithelial (44%) tumours in intact rats, and the incidences of lethal tumours at these sites were significantly enhanced by androgenic treatments following the carcinogen, most markedly in the kidney. Androgenic treatment given before DMN injection had no significant effect on kidney or liver tumour incidences, but the carcinogenic response in lung was still strongly enhanced.

UI	MeSH Term	Description	Entries
D007680	Kidney Neoplasms	Tumors or cancers of the KIDNEY.	Cancer of Kidney,Kidney Cancer,Renal Cancer,Cancer of the Kidney,Neoplasms, Kidney,Renal Neoplasms,Cancer, Kidney,Cancer, Renal,Cancers, Kidney,Cancers, Renal,Kidney Cancers,Kidney Neoplasm,Neoplasm, Kidney,Neoplasm, Renal,Neoplasms, Renal,Renal Cancers,Renal Neoplasm
D008113	Liver Neoplasms	Tumors or cancer of the LIVER.	Cancer of Liver,Hepatic Cancer,Liver Cancer,Cancer of the Liver,Cancer, Hepatocellular,Hepatic Neoplasms,Hepatocellular Cancer,Neoplasms, Hepatic,Neoplasms, Liver,Cancer, Hepatic,Cancer, Liver,Cancers, Hepatic,Cancers, Hepatocellular,Cancers, Liver,Hepatic Cancers,Hepatic Neoplasm,Hepatocellular Cancers,Liver Cancers,Liver Neoplasm,Neoplasm, Hepatic,Neoplasm, Liver
D008114	Liver Neoplasms, Experimental	Experimentally induced tumors of the LIVER.	Hepatoma, Experimental,Hepatoma, Morris,Hepatoma, Novikoff,Experimental Hepatoma,Experimental Hepatomas,Experimental Liver Neoplasms,Hepatomas, Experimental,Neoplasms, Experimental Liver,Experimental Liver Neoplasm,Liver Neoplasm, Experimental,Morris Hepatoma,Novikoff Hepatoma
D008175	Lung Neoplasms	Tumors or cancer of the LUNG.	Cancer of Lung,Lung Cancer,Pulmonary Cancer,Pulmonary Neoplasms,Cancer of the Lung,Neoplasms, Lung,Neoplasms, Pulmonary,Cancer, Lung,Cancer, Pulmonary,Cancers, Lung,Cancers, Pulmonary,Lung Cancers,Lung Neoplasm,Neoplasm, Lung,Neoplasm, Pulmonary,Pulmonary Cancers,Pulmonary Neoplasm
D008815	Mice, Inbred Strains	Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations, or by parent x offspring matings carried out with certain restrictions. All animals within an inbred strain trace back to a common ancestor in the twentieth generation.	Inbred Mouse Strains,Inbred Strain of Mice,Inbred Strain of Mouse,Inbred Strains of Mice,Mouse, Inbred Strain,Inbred Mouse Strain,Mouse Inbred Strain,Mouse Inbred Strains,Mouse Strain, Inbred,Mouse Strains, Inbred,Strain, Inbred Mouse,Strains, Inbred Mouse
D009374	Neoplasms, Experimental	Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms.	Experimental Neoplasms,Experimental Neoplasm,Neoplasm, Experimental
D002369	Castration	Surgical removal or artificial destruction of gonads.	Gonadectomy,Castrations,Gonadectomies
D004128	Dimethylnitrosamine	A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties. It causes serious liver damage and is a hepatocarcinogen in rodents.	Nitrosodimethylamine,N-Nitrosodimethylamine,NDMA Nitrosodimethylamine,N Nitrosodimethylamine,Nitrosodimethylamine, NDMA
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia