麻省理工學院(Massachusetts Institute of Technology)的研究者發現,懷孕期間如果母體的供水受到砷污染,則可能會造成基因病變,使小孩有可能罹患癌症或在其往後的生命中併發其他疾病。
麻省理工學院科學家表示,這是第一次有證據提出,因為產前暴露在任何污染的環境下而造成這種基因體的改變。而這些發現也顯示出,即使供水系統被清理乾淨,而且孩童也從來沒有直接暴露於污染源的經驗,他們還是可能遭受到持久性的傷害。
這項證明來自泰國32位母親和她們小孩的研究,這些人遭受錫礦場嚴重的砷污染。
Children of mothers whose water supplies were contaminated with arsenic during their pregnancies harbored gene expression changes that may lead to cancer and other diseases later in life, researchers at the Massachusetts Institute of Technology have found.
This is the first time evidence of such genome-wide changes resulting from prenatal exposure has ever been documented from any environmental contaminant, say the MIT scientists.
Even when water supplies are cleaned up and the children never experience any direct exposure to the pollutant, they may still suffer lasting damage, the findings suggest.
The evidence comes from studies of 32 mothers and their children in a province of Thailand that experienced heavy arsenic contamination from tin mining.
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