最新试管婴儿技术有什么优势?

What are the advantages of the latest IVF technology?

什么是PGT-A?

国际最新技术PGT-A, 也称PGS.PGD是胚胎植入前遗传学诊断,PGT-A/PGS是胚胎植入前遗传学筛查。PGD可以筛查13、18、21、X、Y 5种染色体,在已知疾病的状况下选择筛查。而PGT-A/PGS技术可以在未知自身遗传疾病的状况下,针对全染色体进行筛查,其准确率已超过99%。

这项技术能极大地降低遗传疾病的发生,减少宝宝出生缺陷,使优生优育得到保障。此技术也可以达成医学需要的性别选择。

临床研究数据表明,35岁以上的女性受孕后,胚胎的染色体出现异常并流产的概率比较高,试管婴儿成功率也会大受影响。而PGS技术的运用能够有效提高35岁以上,之前试管婴儿屡次失败和反复流产女性提高试管婴儿的成功率。

与PGS技术不同,PGD技术针对的是特定基因(单条染色体上特定的DNA片段)的筛查,并依据筛查结果诊断胚胎是否携带可能导致特定疾病的基因突变。如果该胚胎的某个基因发生异常,新生儿就很有可能罹患某种特定疾病,例如囊性纤维性病变、地中海贫血症、唐氏综合症、猫叫综合症等。目前生殖中心的实验室可以通过PGD技术诊断出300种隐性疾病。

如果父母任一方是以上任一疾病的携带者,或者家族中有以上任一疾病的遗传史,便极有可能将决定该疾病的缺陷基因遗传给下一代。通过对特定基因的检测,此技术可以判断该胚胎是否可以发育为健康的胎儿,排除掉带有基因缺陷的胚胎,从而避免将基因突变的胚胎植入母体,确保有以上情况的父母能够生育

一个健康的宝宝。对于有特定遗传病史的人来说,能够帮助高危夫妇避免将重大的基因疾病传给下一代,使他们有机会生育一个健康的后代,而避免了传统产前检查中发现基因紊乱而不得不终止妊娠的无奈和痛苦。


其它问题

Other questions

  • 试管婴儿移植后着床失败的原因

    试管婴儿移植阶段是很关键的,能不能受孕成功就要看移植后着床阶段是否能成功了。一般而言,只要胚胎着床,那么就代表受孕成功。着床失败,则可以等待下一次的试管婴儿移植了。那么,试管婴儿移植后着床失败的原因有哪些呢?1、本身体质关系这是造成试管婴儿移植后着床失败的根本原因。由于体质关系,例如着床环境不佳,体内还有炎症等等情况,这些对着床都是不利的因素。因此,在着床前保持身体健康是非常重要的。2、保养不当在移植后,大家都很注重着床

  • 马来西亚试管婴儿有哪些流程?

    马来西亚试管婴儿的流程是怎样的呢?一起来看看吧!01.术前检查夫妻双方先要在国内做好前期检查,针对检查结果,如果有影响试管婴儿成功率的因素存在,医生会先建议治疗有关疾病,让夫妻双方的孕育条件达到理想状态后,才能进入试管周期。02.见诊需提前2小时到达诊所、可携带相关报告结果(如有需要)。护士将采集关于夫妻之间的病史、日常生活习惯、生殖经验等等。男方需要接受精子分析以测试精子健康水平及生存能力。03.促排卵期刺激卵巢内的卵

  • 马来西亚三代试管婴儿胚胎移植后有哪些流程

    做马来西亚三代试管婴儿最激动人心的便是移植了,移植的时候,每个人多多少少都会有点紧张和期待,甚至有不少人在移植前一晚,紧张的睡不着觉。移植后一般七-17天就可抽血验孕了,那在这7-14天时间里我们的宝宝在做什么呢?马来西亚试管婴儿胚胎着床着床用通俗的话来讲,就是“种子”宝宝在妈妈的子宫里找到合适的“土壤”扎根了,而这整个过程并不是一瞬间能完成的,而是需要一定的时间,逐步进行。移植过后,并不会马上知道胚胎是否着床,医生会让患者们7

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