Induction of forestomach hyperplasia by crude butylated hydroxyanisole, a mixture of 3-tert and 2-tert isomers, in Syrian golden hamsters is due to 3-tert-butylated hydroxyanisole. 1984

N Ito, and M Hirose, and Y Kurata, and E Ikawa, and Y Mera, and S Fukushima

Male Syrian golden hamsters were given 1.0% 2-tert- or 3-tert-butylated hydroxyanisole (BHA) or crude BHA for 1 to 4 weeks. The incidence of severe hyperplasia induced in the forestomach was high in the hamsters given 3-tert-BHA or crude BHA for 2 weeks or more, but was almost at the control level in those given 2-tert-BHA. Thus, the 3-tert isomer would appear to be responsible for the tumorigenicity of crude BHA.

UI MeSH Term Description Entries
D006965 Hyperplasia An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells. Hyperplasias
D007536 Isomerism The phenomenon whereby certain chemical compounds have structures that are different although the compounds possess the same elemental composition. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Isomerisms
D008297 Male Males
D008647 Mesocricetus A genus in the order Rodentia and family Cricetidae. One species, Mesocricetus auratus or golden hamster is widely used in biomedical research. Hamsters, Golden,Hamsters, Golden Syrian,Hamsters, Syrian,Mesocricetus auratus,Syrian Golden Hamster,Syrian Hamster,Golden Hamster,Golden Hamster, Syrian,Golden Hamsters,Golden Syrian Hamsters,Hamster, Golden,Hamster, Syrian,Hamster, Syrian Golden,Syrian Hamsters
D002083 Butylated Hydroxyanisole Mixture of 2- and 3-tert-butyl-4-methoxyphenols that is used as an antioxidant in foods, cosmetics, and pharmaceuticals. Butylhydroxyanisole,(1,1-Dimethylethyl)-4-methoxyphenol,AMIF-72,BHA,Butyl Methoxyphenol,Embanox,Nipantiox 1-F,Tenox BHA,AMIF 72,AMIF72,Hydroxyanisole, Butylated,Methoxyphenol, Butyl,Nipantiox 1 F,Nipantiox 1F
D006224 Cricetinae A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS. Cricetus,Hamsters,Hamster
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
D000840 Anisoles A group of compounds that are derivatives of methoxybenzene and contain the general formula R-C7H7O. Methylphenyl Ethers,Ethers, Methylphenyl
D013270 Stomach An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM. Stomachs

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