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无创胎儿亲子鉴定、怀孕、孕妇、孕期dna亲子鉴定2019-02-24T10:01:59+08:00

无创胎儿亲子鉴定介绍

无创胎儿亲子鉴定是目前针对孕期怀孕孕妇的最先进高端的亲子鉴定方式。我们现在知道如动图所示,怀孕时母体中胎儿的DNA(Fetal dna)会同步进入孕妇的血液中,因此我们只需要孕妇的手臂静脉血15ml, 利用新一代DNA测序技术对母体外周血中的游离DNA片段(包含胎儿游离DNA)进行测序、生物信息分析,从中得到胎儿的遗传信息,并与假定父亲的样本中的DNA信息进行比对,实现确认亲子关系。

技术原理

无创胎儿亲子鉴定技术选取第三代遗传学标记—单核苷酸多态性(single nucleotide polymorphism,SNP)位点进行检测,使用液相杂交方法富集,通过高通量测序进行基因分型,最后根据孟德尔遗传规律判断疑父和胎儿之间是否存在亲子关系。

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对比传统胎儿亲子鉴定的优势


样本要求


蕴亲优势

  • 国内顶尖的遗传咨询和生信分析团队;
  • 标准化医学检验所和规范化的操作流程;
  • 先进的Illumina 测序设备;
  • 检测40000个SNP位点;
  • 依据国家最新《亲权鉴定技术规范》,结果精准可靠;
  • 全方位服务,专人全程对接。

亲子鉴定费用  官方报价

亲子鉴定取报告时间

最晚五个工作日内可得到鉴定报告。

无创胎儿亲子鉴定也是DNA亲子鉴定的一种,因为是属于早期的鉴定,技术要求很高。目前国内真正掌握该项技术的很少。


我们重视对每一位委托人隐私的保护,用于鉴定的样本全程处于保护监控状态,结果也不接受其他任何部门及个人查询,无须担心个人隐私的暴露。

无创产前亲子鉴定尤其适用人群:

1、由于心理压力大,不愿承受侵入性取样的孕妇
2、由于胎盘前置、孕囊低置或羊水过少而不宜接受侵入性取样的孕妇
3、孕周6周及以上的单胎孕妇
4、年龄达35岁及以上的高龄孕妇
5、有其他特殊情况及要求的人群

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不适于做无创亲子鉴定的情况

  1. 近一年内接受过异体输血的孕妇

  2. 接受过器官移植手术、干细胞治疗等的孕妇

  3. 4周之内接受过引入外源DNA的免疫治疗的孕妇

  4. 怀有多胞胎(双胞胎及以上)的孕妇

  5. 做过减胎手术的孕妇

  6. 患有先兆子痫或肿瘤疾病的孕妇

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立刻预约

对于无创产前亲子鉴定,我们目前的技术在怀孕后5周后即可进行,但由于怀孕期孕妇的手臂静脉血内胎儿游离DNA浓度因人而异,因此推荐在怀孕6周及之后进行采样鉴定。对于出生后的孩子的亲子鉴定,是任何时间段都可以的,推荐使用口腔拭子,方便安全价格便宜。

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