母体に投与したフタル酸エステルが胎仔ラットの精巣下降及び生殖器官の発達に対する影響について
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概要
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Mono-n-butyl phthalate (MBP) was administered to pregnant rats to investigate the effect of phthalate ester on both testicular descent and urogenital development in prenatal rats. Ten pregnant rats were separated into two groups. In-group 1 ; rats were fed with special rat chow containing 1% of MBP from the 14th to the 19th gestational days. In group 2 ; rats fed with normal rat chow were used as control. At birth, reduced anogenital distance was seen in MBP-treated male offspring, and additional adverse effects on androgen-dependent organs were seen at the age of 70 - 80 days. Undescended testis, hypospadias, short prepuce, prostatic hypoplasia and hypolastic seminal vesicles were seen in mature male offspring. The results suggest that prenatal administration of MBP may act as an antiandrogenic chemical and thereby inhibit testicular descent and urogenital development in rats.
- 2003-12-25
論文 | ランダム
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- ニッポンオフェリアの体腔内細胞の分化と微細構造(細胞)
- ホシムシ類体腔球の微細構造(細胞・形態)
- 海産環形動物の血色素(中国四国支部大会)