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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
19
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pubmed:dateCreated |
1993-11-2
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pubmed:abstractText |
The purpose of the study was to determine the effect of three different levels of dietary linoleic acid (LA) intake on the growth of MDA-MB-435 human breast cancer cells in the mammary fat pads of nude mice, and their metastasis to the lungs. These diets were isocaloric, and contained different mixtures of safflower (LA-rich) and coconut (saturated fatty acid-rich) oils to provide 23% (w/w) total fat, with 2, 8, and 12% (w/w) LA. A fourth group was fed a low-fat, 5% (w/w) corn oil diet. There were 25 mice in each dietary group. A necropsy, 12 weeks after the tumor cell injections, the primary tumor weights in the 12% LA (4.1 +/- 2.7 g)- and 8% LA (3.5 +/- 1.7 g)-fed groups were significantly greater (P < 0.05) than those fed the 2% LA diet (2.5 +/- 1.5 g); they did not differ significantly from the weights of mammary fat pad tumors in the 5% corn oil-fed mice. The incidence of grossly visible pulmonary metastatic nodules was not significantly different between the 8 and 12% LA-fed mice, but was higher for both groups compared with the 2% LA-fed group (P < 0.05), with a similar trend in comparison with the 5% corn oil group. The mean total calculated volumes of the macroscopic metastases per tumor-bearing mouse were significantly greater in the 8 and 12% LA (157 +/- 250.7 and 99.1 +/- 140.0 mm3, respectively), compared with the 2% LA (23.3 +/- 51.8 mm3)- and 5% corn oil (24.5 +/- 35.1 mm3)-fed mice; all P < 0.05. Micrometastases were observed most frequently in the 5% corn oil and 2% LA dietary groups, but none of the differences were statistically significant. No differences were detected in the concentrations of prostaglandin E, leukotriene B4, or 5-hydroxyeicosatetraenoic acid in tumors from mice fed the four different diets.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
53
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
4686-90
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8402646-Adipose Tissue,
pubmed-meshheading:8402646-Animals,
pubmed-meshheading:8402646-Breast Neoplasms,
pubmed-meshheading:8402646-Cell Division,
pubmed-meshheading:8402646-Dietary Fats,
pubmed-meshheading:8402646-Female,
pubmed-meshheading:8402646-Humans,
pubmed-meshheading:8402646-Linoleic Acid,
pubmed-meshheading:8402646-Linoleic Acids,
pubmed-meshheading:8402646-Lung Neoplasms,
pubmed-meshheading:8402646-Mammary Glands, Animal,
pubmed-meshheading:8402646-Mice,
pubmed-meshheading:8402646-Mice, Nude,
pubmed-meshheading:8402646-Neoplasm Metastasis,
pubmed-meshheading:8402646-Transplantation, Heterologous,
pubmed-meshheading:8402646-Tumor Cells, Cultured
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pubmed:year |
1993
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pubmed:articleTitle |
Effect of diets containing different levels of linoleic acid on human breast cancer growth and lung metastasis in nude mice.
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pubmed:affiliation |
Division of Nutrition and Endocrinology, American Health Foundation, Valhalla, New York 10595.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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