Effect of Exposure to High Isoflavone-Containing Diets on Prenatal and Postnatal Offspring Mice

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Isoflavone (IF), a type of phytoestrogen, has multiple beneficial effects, but too much phytoestrogen can have adverse effects on offspring. To examine whether chronic exposure to high IF has adverse effects on reproductive development, mice offspring were exposed to IF through dietary administration to dams during pregnancy and lactation and to the offspring directly after weaning until sacrifice. In male offspring, there was no difference between the IF group and controls; however, in female offspring in the IF group, remarkably earlier puberty and induction of multioocyte follicles on postnatal day (PND) 21 were observed. Gene expression levels of estrogen receptor β decreased in the ovary and vagina on PND 21. These results suggest that chronic exposure to higher than normal levels of IF induces alterations in the reproductive development of female mice through an estrogenic effect.

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(12), 2874-2882, 2006-12-23 

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018523497
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168451
  • NDL 記事登録ID
    8596172
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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