Abstract：
:Promotional properties of a high-fat diet in intestinal cancer were studied by feeding a 30% beef fat diet to 8 groups of rats (25 rats/group) for time periods varying from 1 to 21 weeks after 8 weekly s.c. injections of azoxymethane (AOM) (8 mg/ kg). Two other groups were fed the high-fat diet, one for 8 weeks prior to and the other during AOM injections. A 5% fat diet was fed to rats when not on the 30% fat diet and to a control group of 25 animals. High fat diet increased intestinal tumor frequency up to 2-fold when given for at least 4 weeks after but not during or prior to AOM injections; this increase occurred even after a prolonged interval (10 weeks) between the last AOM injection and the high-fat diet. In general, tumor frequency increased according to the length of time animals were fed the high-fat diet after AOM. Therefore, the high-fat diet in this model exhibited most of the properties of promoters developed from murine skin cancer, thus adding support to the concept that excess dietary fat acts at the promotional phase of carcinogenesis.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Bull AW,Soullier BK,Wilson PS,Hayden MT,Nigro NDsubject
Has Abstractpub_date
1979-12-01 00:00:00pages
4956-9issue
12eissn
0008-5472issn
1538-7445journal_volume
39pub_type
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