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临沂a卵b怀网站-PGT-A在临床试验中并没有提高活产率

admin 2023年07月14日 09点

  最近的一项研究发现,胚胎植入前非整倍体基因检测可能不会提高活产率。

  PGT-A是许多生育诊所提供的一种补充产品,因为人们认为不移植非整倍体胚胎将有助于降低流产率,提高活产率。以前的研究表明,它可以帮助提高老年妇女的活产率,但对它如何影响年轻、健康妇女的结果却没有什么研究。PGT-A也可能不受欢迎,因为它涉及丢弃非整倍体胚胎,这可能导致比传统试管婴儿治疗更少的预期父母转移。

  加州洛杉矶南加州大学生育中心主任理查德-保尔森教授没有参与这项研究,他说:"如果你是一个预后良好的人......,而且你有三个囊胚,那么不参加基因测试是最符合你的利益。

  该研究在中国的14个生育中心进行,并有详细的描述。该随机对照试验涉及1212名年龄在20至37岁的不孕妇女,这些妇女由于没有重复流产或未植入胚胎的IVF周期的历史而有可能获得活产。

  该研究被平均分为两组,并观察了一年内的活产率。有ICSI和PGT-A试管婴儿的妇女和没有PGT-A的妇女进行了最多三次胚胎移植。他们发现两组之间的比率相似,胚胎经过PGT-A筛查的妇女的活产率为85.3%,未接受胚胎筛查的妇女为82.5%。

  观察到PGT-A组的流产率较低,但传统试管婴儿组有更多妇女在一年内进行了第二次或第三次胚胎移植,这表明该组有更多的胚胎可用。

  该研究的作者总结说,虽然PGT-A不能为妇女提供良好的预后,但他们的结果不一定适用于老年妇女或多次流产或植入失败的妇女。他们还指出,他们对研究中的所有妇女都使用了ICSI,但不是对所有IVF患者都使用ICSI。

  临沂a卵b怀网站

  1、荷兰阿姆斯特丹大学医学中心的Sebastiaan MASTENBROEK博士和其他没有参与研究的人在这篇评论文章中指出:"根据美国疾病控制和预防中心的2018年生育诊所成功率报告,在美国37.7%的IVF周期中使用了PGT,导致胚胎移植。他进一步指出,美国食品和药物管理局目前没有以 "额外 "的方式监管美国的一些生育诊所,但公众呼吁加强监管。他警告说,该行业必须注意 "负责任地 "进行创新,以避免未来可能出现的集体诉讼。

  2、下面是原文。

  3、PGT-A在临床试验中没有提高活产率

  最近的一项研究发现,针对非整倍体的胚胎植入前基因检测并不能提高活产率。

  PGT-A是许多生育诊所提供的一项附加服务,因为他们认为不移植非整倍体胚胎可以减少流产率。以前的研究表明,它可以提高老年妇女的活产率,但关于如何做到这一点的研究很少。PGT-A也是潜在的不可取的,因为它涉及丢弃非整倍体胚胎,这可能导致PGT-A也是潜在的不可取的,因为它涉及丢弃非整倍体胚胎,这可能导致预期父母可用的胚胎比常规IVF治疗少。

  Professor Richard Paulson, director of the USC Fertility Center in Los Angeles, California, who was not involved in the study, said, "If you are a person with a good prognosis ...... and you have three blastocysts, it's in your best interest not to have genetic testing.

  The study, detailed in the New England Journal of Medicine, was conducted at 14 fertility centers in China. The randomized controlled trial involved 1,212 infertile women aged 20-37 years who had a high likelihood of having a live birth because they did not have a history of recurrent miscarriages or IVF cycles without embryo implantation.

  The trial was divided equally into two groups and looked at live birth rates over a one-year period and among women who underwent ICSI IVF with and without PGT-A. They found similar live birth rates in both groups, with 85.3% among women whose embryos were screened for PGT-A and 82.5% among women without embryos.

  The miscarriage rate was lower in the group that received PGT-A screening, but more women in the conventional IVF group had a second or third embryo transfer within a year, suggesting that more embryos were available in that group.

  The authors of the study concluded that while PGT-A does not support a good prognosis for women, their results do not necessarily apply to older women or women who have experienced multiple pregnancy losses or implantation failures. They also noted that they used ICSI for all women in the study, and that ICSI is not used for all IVF patients.

  In a commentary accompanying the article, Dr. Sebastiaan Mastenbroek, an embryologist at the University Medical Center in Amsterdam, Netherlands, and others not involved in the study, noted that "PGT was used for 37, according to the Centers for Disease Control and Prevention's 2018 Fertility Clinic Success Rate Report. He went on to note that while the FDA does not now regulate "add-on devices" at some fertility clinics, the public is calling for greater regulation.