ASIA unversity:Item 310904400/16060
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    题名: Placental transfer of the soy isoflavone genistein following dietary and gavage administration to Sprague-Dawley rats.
    作者: 張竣維;Hebron, C.Chang;Daniel R. Doerge;Mona I. Churchwell;Retha R. Newbold;K.Barry Delclos
    贡献者: 生物科技學系
    关键词: Soy;Isoflavones;Genistein;Placental transfer;Mass spectrometry
    日期: 2001
    上传时间: 2012-11-23 17:08:04 (UTC+8)
    摘要: Genistein, the principal soy isoflavone, has estrogenic activity and is widely consumed by humans for putative beneficial health effects. The goal of the present study was to measure placental transfer of genistein in rats as a possible route of developmental exposure. Pregnant Sprague-Dawley rats were administered genistein orally, either by diet or by gavage. Concentrations of genistein aglycone and conjugates were measured in maternal and offspring serum and brain using HPLC with isotope dilution electrospray tandem mass spectrometry. Although fetal or neonatal serum concentrations of total genistein were approximately 20-fold lower than maternal serum concentrations, the biologically active genistein aglycone concentration was only 5-fold lower. Fetal brain contained predominately genistein aglycone at levels similar to those in the maternal brain. These studies show that genistein aglycone crosses the rat placenta and can reach fetal brain from maternal serum genistein levels that are relevant to those observed in humans.
    關聯: REPRODUCTIVE TOXICOLOGY,15(2),105–110.
    显示于类别:[生物科技學系] 期刊論文

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