TY - JOUR
AU1 - Grandjean, Carter, J.
AU2 - Althoff,, Jürgen
AU3 - Pour, Parviz, M.
AB - Abstract Single and multiple intragastric doses of diallylnitrosamine [(DAN) CAS: 16338-97-9] administered to Syrian golden hamsters induced tumors, primarily of the respiratory tract, in which the nasal cavity epithelium was the preferred site. When compared to the effect of DAN after subcutaneous administration at equal doses, the incidence of respiratory tract tumors was lower but that of hepatic tumors was higher, suggesting partial metabolism of DAN in the liver. Comparative metabolic and mutagenesis studies in BD IX rats (which reportedly are refractory to the carcinogenic effects of DAN), in Wistar rats, and in Syrian hamsters showed that a greater proportion of orally administered DAN was exhaled by both rat strains (12–19%) than by hamsters (2–4%). The activity of the microsomal fraction of the hamster liver for metabolizing DAN to allyl alcohol was about 10 times higher than that in rats, whereas no significant species differences were found with the cytosolic fraction. Pretreatment of animals with phenobarbital (PB) or pregnenolone-16α-carbonitrile (PCN) did not influence either microsomal or cytosolic enzyme activities in hamsters, whereas about a tenfold increase in enzyme activities was seen after pretreatment with PB in both rat strains and following PCN in Wistar rats. Moreover, in bacterial mutagenesis assays, hamster liver microsomes were twice as active as those in BD IX rats. The results are discussed in relation to the carcinogenicity of DAN in rats and hamsters. 2 Supported by Public Health Service contract N01CP-33278 from the Division of Cancer Cause and Prevention, National Cancer Institute. 3 Animals were maintained according to the guidelines of the National Research Council for the care and use of laboratory animals. This content is only available as a PDF. Author notes 4 Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE 68105. 5 Experimental Pathology Section, Medical School of Hannover, Hannover, Federal Republic of Germany. 6 The Eppley Institute for Research in Cancer and Allied Diseases and Department of Pathology and Laboratory Medicine, University of Nebraska Medical Center. 8 We thank Ms. Mardelle Susman for preparation of the manuscript, Ms. Kathy Stepan for technical assistance, Dan Van Goethem for supervising the mutagenicity studies, and Dr. P. Issenbergfor supervising the mass spectrophotometric measurements.
TI - Carcinogenicity of Diallylnitrosamine Following Intragastric Administration to Syrian Hamsters
JF - JNCI: Journal of the National Cancer Institute
DO - 10.1093/jnci/74.5.1043
DA - 1985-05-01
UR - https://www.deepdyve.com/lp/oxford-university-press/carcinogenicity-of-diallylnitrosamine-following-intragastric-TE38YyjKA4
SP - 1043
EP - 1046
VL - 74
IS - 5
DP - DeepDyve
ER -