【南昌代孕宝宝免疫力有问题】【南昌代孕前的准备】【南昌代孕女夺子大战】【南昌代孕和代孕】

孕5周白带粉色吃黄体酮胶囊保胎对胎儿一般没有影响的。有褐色的分泌物,最有可能的还是宫腔的出血,考虑先兆流产的可能性是存在的,那就要去保胎治疗,黄体酮可以,其他药滋肾育胎丸、维生素e软胶囊没有必要,早孕期保胎也不需要添加那么多,点孕酮减少宫缩,降低出血的时间和出血的量,所以,两周之后去做b超就行了。
两周时间内适当的减少活动量,在家不用严格卧床,可以不用去上班,在家可以不用干家务。但是不用绝对卧床,像这种情况,百分之九十的胚胎都没问题的,不用太担心。岳阳晚报全媒体讯>(通讯员 王礼保 余丹)3月2日,岳阳市妇幼保健院(岳阳市产前诊断中心挂靠单位)医学遗传科联合产科、超声医学科,成功为一名双胎妊娠孕妇进行了羊水穿刺术,该例穿刺术为岳阳市首例。
孕妇张女士因“二代试管、双胎妊娠,唐氏筛查21三体临界风险”需行羊水穿刺产前诊断,在市妇幼保健院副院长沈小卜、医学遗传科主任邬洪梁、产科副主任康昭海、超声医学科副主任张青的指导下,陈丽娅副主任医师在超声引导下为该孕妇进行了双胎妊娠羊水穿刺术,整个过程和孕妇沟通良好,操作顺利,成功获取了胎儿羊水。
据陈丽娅医师介绍,二代或三代试管婴儿、双胎及多胎妊娠者不适于单独使用产前筛查技术(如母体血清学筛查、产前超声检查以及无创 DNA 检测等),必须使用羊水穿刺等介入性产前诊断技术,以便更精准检测染色体病胎儿。
双胎羊水穿刺术需在B超引导下明确区分两个胎儿绒毛膜性,由细针经过腹壁穿刺入羊膜腔,且穿刺针不能误入另一个羊膜腔,进而获取具有与胎儿相同的遗传信息的脱落细胞,以此了解宫内胎儿有无发育异常、有无染色体病、基因病等遗传病。双胎羊水穿刺需要手术医生与B超医生密切配合,且具有丰富经验,方能精准获取两个胎儿样本。
岳阳市产前诊断中心自2009年开展羊水穿刺以来,已成功完成羊水穿刺4500多例,确诊了300余例染色体病胎儿,为岳阳市妇幼保健院的母胎医学发展奠定了坚实基础。随着岳阳市产前诊断中心的不断发展壮大,将有利于降低出生缺陷发生率,提高出生人口素质,促进我市妇幼健康工作,为母婴健康、家庭和睦、社会稳定提供更好的临床医学保障。
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.”
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.
自上世纪90年代以来,接受试管受精的夫妇已经能够对他们的胚胎进行筛选,以发现单个基因的突变,这些突变会导致严重的疾病,比如囊性纤维化,以及染色体异常导致的唐氏综合征等。
chromosome ['krmsm]:n.染色体
Many other traits, including height, physical appearance, intelligence and disease susceptibility, are known to be partly heritable. But because the genetic component is spread thinly over hundreds or even thousands of DNA regions, it has previously been impossible to screen for these traits.
许多其他特征,包括身高、外貌、智力和疾病易感性,都被认为是部分遗传的。但由于遗传组分稀疏地分散在数百甚至数千个DNA区域,以前不可能对这些特征进行筛选。
In the past decade, as vast genetic databases have been established, this picture has changed. Through analyzing many genes, each making a tiny contribution, it has been possible to calculate what are called polygenic risk scores, which give a person’s likelihood of getting a particular disease or having a certain trait.
在过去的十年里,随着大量基因数据库的建立,这种情况已经发生了改变。通过分析大量基因,每个基因都做出了微小的贡献,就有可能计算出所谓的多基因风险评分,即一个人患某种特定疾病或具有某种特征的可能性。
polygenic[,pli'denik]:adj.多基因的
Genomic Prediction is the first company to take embryo screening into this grey area of risk forecasting, offering to alert couples if an embryo has an “outlier” score for risk of cancers, diabetes, heart disease, dwarfism or low IQ.
基因组预测公司是第一家将胚胎筛查纳入风险预测这一灰色地带的公司。如果胚胎在癌症、糖尿病、心脏病、侏儒症或智商低下等风险方面的评分“异常”,它就会提醒做筛查的夫妇。
outlier ['atla]:n.(统计)异常值
Medical staff put clothes on the newborn test-tube baby at a hospital in Xi'an, Northwest China's Shaanxi province. [Photo/Xinhua]
Prediction for IQ is not good enough to give a reliable ranking, but Hsu said that knowing an embryo has a low score could still be desirable.
智商预测目前还不足以给出可靠的评分,但徐道辉表示,如果一个胚胎的智商评分较低,人们可能还是很想知道。
“Maybe the bottom 1% embryo will grow up to be a great person … even be a scientist, but the odds are against it,” he said. “I honestly feel if we can calculate that score and find a real negative outlier there’s an ethical responsibility for us to report that.”
徐道辉说:“也许评分最低的1%的胚胎长大后会成为一个优秀的人……甚至成为一名科学家,但这种可能性很小。我真的觉得,如果我们能计算出这个评分,发现它低得十分异常,那么我们就有道德责任予以告知。”
The company projects that once high-quality genetic and academic achievement data from a million individuals becomes available, expected to be within five to 10 years, it will be able to predict IQ to within about 10 points.
该公司预计,在5至10年内,一旦100万人的高质量基因和学术成就数据可用,它将能够预测智商,误差在10分以内。
Hsu is reticent about whether screening for high intelligence would be ethically justified, saying: “Let me just decline to answer that at the moment.”
徐道辉不愿评论高智商筛查是否符合伦理标准,说“目前我拒绝回答这个问题”。
reticent ['rets()nt]:adj.沉默的;有保留的
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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