Biomaterial Database

Carcinogenicity in mice of some fatty acid methyl esters. 2. Peroral and subcutaneous application. 1975

H W Klaer, and J Glavind, and E Arffmann

Two fatty acid methyl esters, methyl oleate and methyl 12-oxo-trans-10-octadecenoate, have been tested for carcinogenicty by oral and subcutaneous administration in ST/a mice of both sexes. A positive effect of methyl oleate could not be assessed, while the results pointed to a promoter effect of methyl oxo-octadecenoate. Given in the diet, this compound increased the incidence and number of forestomach papillomas within 83 weeks after initiation by 4-nitroguinoline 1-oxide. Repeated injections of methyl oxo-octadecenoate in the inguinal area resulted in 2 local sarcomas in a group of 20 females which had previously received skin initiation by 7, 12-dimethylbenz [alpha] anthracene in the neck. In no other animal group did sarcomas appear at this location within the observation period of 2 years. An influence by the injected methyl esters on the initiated skin carcinogenesis was possibly, but weakly, present. The need for more extensive experiments is stressed, especially with a view to the possible carcinogenic hazards involved in dietary intake of oxygen-containing derivatives of oleic acid.

UI	MeSH Term	Description	Entries
D007279	Injections, Subcutaneous	Forceful administration under the skin of liquid medication, nutrient, or other fluid through a hollow needle piercing the skin.	Subcutaneous Injections,Injection, Subcutaneous,Subcutaneous Injection
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
D009829	Oleic Acids	A group of fatty acids that contain 18 carbon atoms and a double bond at the omega 9 carbon.	Octadecenoic Acids,Acids, Octadecenoic,Acids, Oleic
D010212	Papilloma	A circumscribed benign epithelial tumor projecting from the surrounding surface; more precisely, a benign epithelial neoplasm consisting of villous or arborescent outgrowths of fibrovascular stroma covered by neoplastic cells. (Stedman, 25th ed)	Papilloma, Squamous Cell,Papillomatosis,Papillomas,Papillomas, Squamous Cell,Papillomatoses,Squamous Cell Papilloma,Squamous Cell Papillomas
D002273	Carcinogens	Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.	Carcinogen,Oncogen,Oncogens,Tumor Initiator,Tumor Initiators,Tumor Promoter,Tumor Promoters,Initiator, Tumor,Initiators, Tumor,Promoter, Tumor,Promoters, Tumor
D005260	Female		Females
D000284	Administration, Oral	The giving of drugs, chemicals, or other substances by mouth.	Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
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
D012513	Sarcoma, Experimental	Experimentally induced neoplasms of CONNECTIVE TISSUE in animals to provide a model for studying human SARCOMA.	EHS Tumor,Sarcoma, Engelbreth-Holm-Swarm,Sarcoma, Jensen,Experimental Sarcoma,Experimental Sarcomas,Sarcomas, Experimental,Engelbreth-Holm-Swarm Sarcoma,Jensen Sarcoma,Sarcoma, Engelbreth Holm Swarm,Tumor, EHS