医生建议唐筛结果是临界风险的患者做羊水穿刺其实并不是骗局，因为一般唐氏筛查结果显示临界风险，就表明宝宝处于安全和不安全的地带，需要进一步检查明确孩子是否有问题。一般如果其他检查结果有异常，医生就会建议患者选择羊穿，直接去确认孩子是否存在问题，如果其他结果显示无异，就会让其去做无创dna判断孩子风险几率。
怀孕在四个月左右，一般都会做唐氏筛查，要看看胎儿是不是有唐氏综合症。唐氏筛查如果是临界风险，就需要进一步的进行检查，要不就是做无创dna要不就是做羊水穿刺。但如果患者临界风险做了无创dna后提示结果一样，最终还是需要做羊水穿刺，因为唐氏筛查和无创dna只能算是判断依据，而羊水穿刺可以作为确诊的依据。所以医生们建议临界风险患者做羊水穿刺并不是骗局，只是为了确诊还是否存在异常。
大龄试管使用人工周期方案和自然怀孕成功几率是不好判断的，还需要根据患者的身体情况来看。大龄女性如果自身卵巢功能不是很好，排卵情况也不好的情况，是需要采取人工周期促排的，这种方案是需要用大量的药物进行促排，那么获得成熟卵子会比较多，一定程度上是可以提高试管的成功几率的，但有的女性对促排药物不敏感，需要的药物比较多，而且容易造成卵巢过度刺激，也是不利于试管移植的。
大龄女性随着年龄的增长，卵巢功能会变差，自然怀孕的几率也会相对下降。对于大龄女性即使做试管婴儿，成功几率也会受到年龄、卵巢情况等因素的影响，所以成功率也不会很高的。下面是大龄女性人工周期试管成功几率：
1.过了35岁大龄女性一般很难自然怀孕，就连试管婴儿的成功率也会大大的降低。因为卵巢功能会慢慢开始衰退了，卵子的质量以及胚胎的质量等都会严重影响到试管婴儿的成功率；
2.大龄女性使用人工周期促排一定程度上是可以提高怀孕的几率的，但个人体质的不同，成功几率也是不太一样的，有的女性对促排药物比较敏感，优质卵子个数也会更多，但相反，则会更少，成功几率也就更低了；
3.高龄女性自然受孕的几率非常低，有时候备孕很久都不成功，而试管婴儿可以通过人工的方式进行体外受精，通过人工周期方案促排更加容易，只要成功取卵，就可以大大提高高龄女性怀孕成功的几率。
如果有一天，你可以选择生育一个小“爱因斯坦”，也可以生育一个智商普通的孩子，你会做出什么样的选择？据科学家预计，未来10年内，人类将可以使用试管婴儿技术选择“最聪明”的胚胎。
Genetics research, conceptual artwork. CHINA DAILY
Couples undergoing IVF treatment could be given the option to pick the “smartest” embryo within the next 10 years, a leading US scientist has predicted.
据美国一名权威科学家预计，未来10年之内，做试管婴儿的夫妇将能够选择“最聪明”的胚胎。
IVF：in vitro fertilization 体外受精联合胚胎移植技术，又称“试管婴儿”
Stephen Hsu, senior vice president for research at Michigan State University, said scientific advances mean it will soon be feasible to reliably rank embryos according to potential IQ, posing profound ethical questions for society about whether or not the technology should be adopted.
美国密歇根州立大学主管科研的副校长徐道辉（斯蒂芬·徐）说，科学进步意味着人类不久就能够对胚胎的潜在智商给出可靠的评分，这项技术是否应该使用将是一个深刻的社会伦理问题。
Hsu’s company, Genomic Prediction, already offers a test aimed at screening out embryos with abnormally low IQ to couples being treated at fertility clinics in the US.
徐道辉的基因组预测公司已经为在美国不孕不育诊所接受治疗的夫妇提供了一项检测服务，旨在筛查出智商异常低的胚胎。
“Accurate IQ predictors will be possible, if not the next five years, the next 10 years certainly,” Hsu told the Guardian. “I predict certain countries will adopt them.”
广州哪里有代孕的呀
徐道辉对《卫报》记者说：“准确的智商预测是可能的，即使不是未来5年内，那么在未来10年内也肯定可以。我预计一些国家会采纳这项技术。”
The prospect of a new generation of genetically selected babies has prompted concerns about unintended medical consequences and the potential for deepening existing social inequalities. The science underpinning the claim that intelligence can be meaningfully predicted by genetic tests is also contentious.
新一代基因选择婴儿的前景引发了人们对于意外医疗后果和现有社会不平等可能加剧的担忧。基因检测能够有效预测智商的科学技术也引发了争议。
contentious [kn'tens]：adj.有异议的，引起争论的
Peter Donnelly, a professor of statistical science at the University of Oxford, said any such IQ predictions should be treated with “huge caution”, adding: “I have grave misgivings about it on ethical grounds. I think it’s a really bad idea.”
牛津大学统计学教授彼得·唐纳利说，应该“十分谨慎”地对待此类智商预测。他说：“出于伦理原因，我对此非常担忧。我认为这是一个非常糟糕的想法。”
Since the 1990s, couples undergoing IVF have been able to screen their embryos for mutations in single genes that cause serious diseases such as cystic fibrosis, as well as conditions like Down’s syndrome, caused by chromosome abnormalities.
In some countries, such as Singapore, there is likely to be a high level of public acceptance and demand for such tests, he suggested. “I think the overwhelming majority would say yes, absolutely, parents should be allowed to do that,” he said. “Before you write your piece, you might just want to think that a billion people on the other side of the world might have a different view.”
徐道辉说，在一些国家，比如新加坡，公众对此类检测的接受度和需求可能会很高。他说：“我认为绝大多数人肯定会赞成允许父母这样做。在你写这篇报道之前，也许应该想想地球另外一端的10亿人可能有不同的看法。”
Whether such tests will become available in the UK would depend on approval from the Human Fertilization and Embryology Authority (HFEA).
这种检测方法能否在英国实施将取决于英国人工授精与胚胎学管理局的批准。
“If the HFEA decides that it’s not right for the UK, I will respect that,” Hsu said, but predicted that “rich people from the UK will fly to Singapore” if they are unable to get the tests locally.
他说:“如果英国人工授精与胚胎学管理局认为这对英国不合适，我会尊重这个决定。”但他预测，如果英国富人无法在当地进行这项检测，“他们会飞到新加坡去做的。”
Some in the UK take the view that prospective parents have a right to access such tests. “I don’t think people should be deprived of that knowledge,” said Prof Simon Fishel, the founder of Care Fertility.
在英国，一些人认为未来的父母有权进行此类检测。生育关怀组织的创始人西蒙费舍尔教授说:“我认为不应该剥夺人们的这种知情权。”
Fishel questioned whether there is any ethical difference between picking an embryo ranked highest for IQ or sending a child to a private school. “What’s wrong with ranking an embryo if you can rank a child?” he said. “I think there are plenty of people who’d choose embryo Oxford [rather] than embryo A-level failure.”
费舍尔质疑挑选智商最高的胚胎和送孩子去私立学校之间是否存在伦理上的差异。“如果你能给孩子评分，那给胚胎评分又有什么错呢？”他说。“我认为有很多人会选择未来能考取牛津的胚胎而不是无法通过英国中学高级水平考试的胚胎。”
In practice, though, couples often have only a few embryos to choose from. And there are concerns about unintended consequences. For instance, there is some evidence linking higher polygenic scores for academic ability to higher likelihood of autism.
但实际上，夫妇们通常只有几个胚胎可供选择。此外，人们还担心会出现意想不到的后果。例如，有证据表明，学术能力的多基因得分越高，患自闭症的可能性就越大。
The technology is controversial, but that does not mean it will not gain acceptance in the future, Hsu said, drawing parallels with the reaction to IVF in its early days.
徐道辉说，这项技术存在争议，但这并不意味着它在未来不会被接受，这与早期人们对体外受精的反应类似。
“The IVF pioneers … were called monsters, Frankenstein doctors; it was predicted that these babies would have health problems,” he said. “I am actually reassured by that. IVF is completely normalized now. Everyone who is pointing their finger at [Genomic Prediction] now should go back and read those articles.”
他说：“试管婴儿的先驱被称为怪物，弗兰肯斯坦医生。当时人们预测这些婴儿会有健康问题。实际上，我对此很放心。试管受精现在已经完全正常化。现在，所有指责（基因组预测）的人都应该回去读读那些文章。”
来源：卫报、参考消息网
翻译编辑：yaning
来源：中国日报网
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