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Accession IconGSE38060

Changes in mammary gene expression and morphology following consumption of soy protein isolate in female Sprague-Dawley rats differs from that produced by 17b-estradiol treatment

Organism Icon Rattus norvegicus
Sample Icon 12 Downloadable Samples
Technology Badge Icon Affymetrix Rat Genome 230 2.0 Array (rat2302)

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Description
Soy foods have been suggested to have both positive health benefits and potentially adverse effects largely as a result of their content of isoflavone phytoestrogens. Since soy protein isolate (SPI) contains isoflavones, in addition to purported health benefits, safety concerns have been raised regarding the use of SPI and soy formulas, because of potential estrogenic actions during the neonatal period, including the potential for reproductive toxicity, infertility, and the possibility of increased risk for development and recurrence of estrogen sensitive cancers such as breast cancer. In the current study, we used a rat model to compare the effects of SPI with those of 17b-estradiol (E2), on global gene expression profiles and morphology in the female rat mammary gland. Rats were either fed AIN-93G diets containing casein (CAS) or SPI beginning on postnatal day (PND) 30.
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12

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