Document Detail


Effect of exposure to high isoflavone-containing diets on prenatal and postnatal offspring mice.
MedLine Citation:
PMID:  17151444     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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 beta 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.
Authors:
Kyoka Takashima-Sasaki; Masatoshi Komiyama; Tetsuya Adachi; Kenichi Sakurai; Hideo Kato; Taisen Iguchi; Chisato Mori
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-12-07
Journal Detail:
Title:  Bioscience, biotechnology, and biochemistry     Volume:  70     ISSN:  0916-8451     ISO Abbreviation:  Biosci. Biotechnol. Biochem.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-25     Completed Date:  2007-03-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205717     Medline TA:  Biosci Biotechnol Biochem     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  2874-82     Citation Subset:  IM    
Affiliation:
Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University.
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MeSH Terms
Descriptor/Qualifier:
Animals
Base Sequence
Body Weight / drug effects
DNA Primers
Diet*
Feeding Behavior / drug effects
Female
Genitalia, Female / drug effects,  growth & development
Genitalia, Male / drug effects,  growth & development
Isoflavones / administration & dosage,  pharmacology*
Male
Maternal Exposure*
Mice
Mice, Inbred C57BL
Pregnancy
Reverse Transcriptase Polymerase Chain Reaction
Sexual Maturation / drug effects
Chemical
Reg. No./Substance:
0/DNA Primers; 0/Isoflavones

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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