致畸原

Teratogens are substances that can cause birth defects when they are present during pregnancy.
翻译：致畸剂是指在孕期存在时能够引发胎儿畸形的物质。
Alcohol is a well-known teratogen and can lead to fetal alcohol spectrum disorders.
翻译：酒精是一种广为人知的致畸剂，可能导致胎儿酒精谱系障碍。
The use of thalidomide as a medication was discontinued due to its potent teratogenic effects.
翻译：由于沙利度胺具有强烈的致畸作用，作为药物的使用已被停止。
Prenatal exposure to radiation is a teratogen and may result in congenital malformations.
翻译：孕期暴露于辐射是致畸因素之一，可能会导致先天性畸形。
Smoking during pregnancy is considered a teratogen and increases the risk of having low birth weight babies.
翻译：孕期吸烟被认为是致畸因素，会增加低出生体重婴儿的风险。
Certain medications, such as isotretinoin, are highly teratogenic and must not be taken during pregnancy.
翻译：某些药物如异维A酸具有高度致畸性，在孕期严禁服用。
The study aimed to identify potential environmental teratogens that contribute to an increase in birth defects.
翻译：这项研究旨在识别可能导致出生缺陷增加的潜在环境致畸因素。
Zika virus has been identified as a significant teratogen causing microcephaly in newborns.
翻译：寨卡病毒已被确认为一种重要的致畸因子，会导致新生儿小头症。
Pesticides are suspected to be teratogenic; therefore, pregnant women should avoid contact with them.
翻译：杀虫剂被怀疑具有致畸性，因此孕妇应避免接触这些物质。
A prenatal screening test can help identify possible teratogens to which the mother has been exposed.
翻译：产前筛查测试有助于识别母亲可能接触到的致畸物质。