科学家创造了“三个父母”的婴儿来预防遗传疾病,引发了道德辩论。 Scientists create 'three-parent' babies to prevent inherited diseases, sparking ethical debates.

科学家成功地运用了一种叫作“米托氏体捐赠”的技术, 来预防七个儿童中遗传下来的米托氏体疾病。 Scientists have successfully used a technique called "mitochondrial donation" to prevent inherited mitochondrial diseases in seven children. 这一程序涉及使用第三方父母的DNA来取代母亲有缺陷的线粒体DNA,这可能造成严重的健康问题,如瘫痪和心脏衰竭。 This procedure involves using DNA from a third parent to replace the mother's faulty mitochondrial DNA, which can cause severe health issues like paralysis and heart failure. 早期结果显示,儿童身体健康,但批评者担心基因操纵的潜在风险和伦理问题。 Early results show the children are healthy, but critics worry about potential risks and ethical concerns regarding genetic manipulation. 这一技术在某些国家是合法的,但在美国被禁止。 The technique is legal in some countries but banned in the U.S.