Article
Modulation of methylnitrosourea-induced breast cancer in Sprague Dawley rats by dehydroepiandrosterone: dose-dependent inhibition, effects of limited exposure, effects on peroxisomal enzymes, and lack of effects on levels of Ha-Ras mutations.
Cancer research - 1 Mar 1998
Lubet R A, Gordon G B, Prough R A, Lei X D, You M, Wang Y, Grubbs C J, Steele V E, Kelloff G J, Thomas C F, Moon R D
Abstract excerpt
Dehydroepiandrosterone (DHEA), the major steroid precursor of androgens and estrogens produced in peripheral tissues in primates, is an effective chemopreventive agent in the N-methyl-N-nitrosourea (MNU)-induced rat mammary tumor model. Dietary DHEA (5-600 ppm; 600 mg/kg diet) was administered beginning 1 week before MNU and administered continually throughout the duration of the experiment. The highest dose of...
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