Abstract |
Mammary cancer was induced in female Sprague-Dawley rats by a single injection of N-methyl-N-nitrosourea (MNU) and rats were randomized to control fat (5%) and high fat (24.6%) diets. In addition, dried cabbage (5 and 10%) and collards (5%) were included in the diets of some animals. No statistically significant differences were observed in food consumption, body wt gain and caloric intake between the MNU-treated and control groups in the rats fed the low-fat diet. However, the groups fed the high-fat diet consumed more than the rats maintained on the control diet. The rats on the control fat diet containing cabbage exhibited a significantly lower incidence of mammary cancer than rats that were fed the control-fat diet without cabbage. This effect was not observed in comparable rats on the high-fat diet. The inhibitory effect on mammary tumorigenesis was demonstrated using a residue obtained from cabbage by exhaustive extraction with methanol, methylene chloride and petroleum ether. These studies reinforce the efficacy of cabbage as a 'suppressor' of cancer in experimental model systems under control- fat dietary conditions.
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Authors | E Bresnick, D F Birt, K Wolterman, M Wheeler, R S Markin |
Journal | Carcinogenesis
(Carcinogenesis)
Vol. 11
Issue 7
Pg. 1159-63
(Jul 1990)
ISSN: 0143-3334 [Print] England |
PMID | 2372873
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Dietary Fats
- Methylnitrosourea
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Topics |
- Animals
- Body Weight
- Brassica
- Diet
- Dietary Fats
(administration & dosage)
- Energy Intake
- Female
- Mammary Neoplasms, Experimental
(chemically induced, prevention & control)
- Methylnitrosourea
- Rats
- Rats, Inbred Strains
- Time Factors
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