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动物实验显示双酚A替代品不安全

2018年09月16日 10:46来源:网络整理手机版

  常见于婴儿奶瓶等塑料制品的化学物质双酚A由于存在健康风险,正被双酚S等材料替代。美国《当代生物学》杂志9月13日刊载的一项小鼠实验研究显示,这些替代材料同双酚A一样,仍可能导致生育问题。

  当前市场上许多塑料制品都开始贴上“不含双酚A”的标志,宣称可放心安全使用,这些产品大多使用与双酚A化学结构相似的化学物质双酚S等替代材料。

  美国华盛顿州立大学和加利福尼亚大学旧金山分校的研究人员发现,接触双酚S的小鼠,江苏论坛,其睾丸和卵巢中的生殖细胞在制造精子和卵子时,会出现DNA(脱氧核糖核酸)重组问题,导致活精子数量减少和异常卵子数量增加。双酚F、双酚AF和二苯砜等替代品也可能导致类似后果。

  此前美国就有研究称,双酚S可能与双酚A一样存在毒性,动物实验显示它会影响大脑发育,导致多动,煤炭局,因此像孕妇这样的特殊人群应限制接触含双酚的物品。

  此次论文作者、华盛顿州立大学教授帕特里夏·亨特说,越来越多的证据表明,尽管这些常用的双酚A替代品更为稳定,但它们也不安全。亨特还说,其他广泛使用的、破坏内分泌功能的化学品,如对羟基苯甲酸酯、邻苯二甲酸酯和阻燃剂等都可能对生育造成负面影响,还需要开展更多研究。(记者 周舟)

(责编:陶稳(实习生)、樊海旭)

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