Biomaterial Database

The effect of substituents on the carcinogenicity of n-nitrosopyrrolidine in Sprague-Dawley rats. 1976

W Lijinsky, and H W Taylor

N-Nitrosopyrrolidine and two of its derivatives were prepared and fed in drinking water to Sprague-Dawley rats to compare the effects of substituents on the carcinogenicity of the N-nitrosopyrrolidine molecule. 3,4-Dichloro-N-nitrosopyrrolidine induced esophageal tumors in 13 of 14 animals, olfactory carcinomas in 4, and a hepatocellular tumor in 1. All animals that received this compound were dead at 55 weeks after the start of the experiments. N-Nitrosopyrrolidine induced hepatocellular tumors in 26 of 29 animals and induced 1 olfactory carcinoma. Not all animals in this group were dead until 104 weeks of the experiment. 2,5-Dimethyl-N-nitrosopyrrolidine induced only 2 hepatocellular tumors in 29 animals. The alpha-methyl substitution diminished the liver carcinogenicity, while the beta chlorine substitution affected a different target organ, the esophagus, and greatly reduced the time to death with tumors.

UI	MeSH Term	Description	Entries
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
D008297	Male		Males
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
D009602	Nitrosamines	A class of compounds that contain a -NH2 and a -NO radical. Many members of this group have carcinogenic and mutagenic properties.	Nitrosamine
D009669	Nose Neoplasms	Tumors or cancer of the NOSE.	Cancer of Nose,Nasal Neoplasms,Nose Cancer,Cancer of the Nose,Nasal Cancer,Neoplasms, Nose,Cancer, Nasal,Cancer, Nose,Cancers, Nasal,Cancers, Nose,Nasal Cancers,Nasal Neoplasm,Neoplasm, Nasal,Neoplasm, Nose,Neoplasms, Nasal,Nose Cancers,Nose Neoplasm
D011759	Pyrrolidines	Compounds also known as tetrahydropyridines with general molecular formula (CH2)4NH.	Tetrahydropyridine,Tetrahydropyridines
D004938	Esophageal Neoplasms	Tumors or cancer of the ESOPHAGUS.	Cancer of Esophagus,Esophageal Cancer,Cancer of the Esophagus,Esophagus Cancer,Esophagus Neoplasm,Neoplasms, Esophageal,Cancer, Esophageal,Cancer, Esophagus,Cancers, Esophageal,Cancers, Esophagus,Esophageal Cancers,Esophageal Neoplasm,Esophagus Cancers,Esophagus Neoplasms,Neoplasm, Esophageal,Neoplasm, Esophagus,Neoplasms, Esophagus
D005260	Female		Females
D006528	Carcinoma, Hepatocellular	A primary malignant neoplasm of epithelial liver cells. It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic, or form GIANT CELLS. Several classification schemes have been suggested.	Hepatocellular Carcinoma,Hepatoma,Liver Cancer, Adult,Liver Cell Carcinoma,Liver Cell Carcinoma, Adult,Adult Liver Cancer,Adult Liver Cancers,Cancer, Adult Liver,Cancers, Adult Liver,Carcinoma, Liver Cell,Carcinomas, Hepatocellular,Carcinomas, Liver Cell,Cell Carcinoma, Liver,Cell Carcinomas, Liver,Hepatocellular Carcinomas,Hepatomas,Liver Cancers, Adult,Liver Cell Carcinomas
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