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首页> 外文期刊>Archives of Toxicology >Enhanced OECD TG 407 in detection of endocrine-mediated effects of 4,4'-(octahydro-4,7-methano-5H-inden-5-ylidene) bisphenol
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Enhanced OECD TG 407 in detection of endocrine-mediated effects of 4,4'-(octahydro-4,7-methano-5H-inden-5-ylidene) bisphenol

机译:增强的OECD TG 407可检测内分泌介导的4,4'-(八氢-4,7-甲醇5H-茚满-5-亚烷基)双酚的作用

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The purpose of this study was to investigate whether the estrogenic effects were detected in the enhanced TG 407 if the estrogenic property was not so strong in the uterotrophic assay. The estrogenic property of 4,4'-(octahydro-4,7-methano-5H-inden-5-ylidene)bisphenol in the uterotrophic assay was slightly stronger than that of genistein or nonylphenol, but weaker than that of ethinyl estradiol. We performed a 28-day repeated-dose toxicity study (enhanced OECD test guideline No. 407) on 4,4'-(octahydro-4,7-methano-5H-inden-5-ylidene)bisphenol based on the OECD draft protocol. The test chemical, administered orally at doses of 0, 10, 50, and 250 mg/kg per day for at least 28 days, caused such estrogenic effects as abnormal estrous cycle, increased ovarian follicles, increased uterine epithelial height, and vaginal mucification in the 50 and/or 250 mg/kg groups. Moreover, follicular epithelial cell hyperplasia of the thyroid was detected in all male rats given the test chemical and in female rats in the 250 mg/kg group. It was concluded that the estrogenic effects were detected in growing rats given 4,4'-(octahydro-4,7-methano-5H-inden-5-ylidene)bisphenol, and thyroid dysfunction was also observed as the endocrine-mediated effects.
机译:这项研究的目的是调查如果在子宫营养测定中雌激素特性不是那么强,在增强型TG 407中是否检测到雌激素作用。在子宫营养测定中,4,4'-(八氢-4,7-甲醇-5H-茚满-5-亚烷基)双酚的雌激素特性略强于染料木黄酮或壬基酚,但弱于乙炔基雌二醇。我们根据OECD草案规程,对4,4'-(八氢-4,7-甲醇-5H-茚满-5-亚烷基)双酚进行了28天重复剂量毒性研究(增强的OECD测试准则第407号) 。每天以0、10、50和250 mg / kg的剂量口服该试验化学品至少28天,引起雌激素作用,例如发情周期异常,卵巢卵泡增加,子宫上皮高度增加和阴道粘液增多。 50和/或250 mg / kg组。此外,在250 mg / kg组中,在所有接受测试化学物质的雄性大鼠和雌性大鼠中均检测到甲状腺滤泡上皮细胞增生。结论是,在给予4,4'-(八氢-4,7-甲醇-5H-茚满-5-亚烷基)双酚的成年大鼠中检测到雌激素作用,并且还观察到甲状腺功能障碍是内分泌介导的作用。

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