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在产前诊断中,对小超数标记染色体的分子和细胞遗传分析

Yang Yang¹, Wang Hao^2,3

¹Prenatal Diagnosis Center, Hangzhou Maternity and Child Care Hospital, #369 Kunpeng Road, Shangcheng District, Hangzhou, 310008, Zhejiang, China.

Molecular cytogenetics

|September 4, 2023

概括

使用先进的遗传检测识别小超数标记染色体 (sSMC) 的起源对于产前诊断和遗传咨询至关重要. 这项研究强调了全面的分子和细胞遗传方法对于sSMC表征的重要性.

科学领域:

遗传学是一个遗传学.
产前诊断在产前诊断
细胞遗传学细胞遗传学

背景情况:

小超数标记染色体 (sSMC) 是结构异常的染色体,其起源不清楚.
在产前诊断中sSMC的临床意义仍然不太清楚.
sSMC的存在给遗传咨询带来了挑战.

研究的目的:

在产前诊断中研究小超数标记染色体 (sSMC) 的起源和临床意义.
评估多种分子和细胞遗传学方法在表征sSMC中的实用性.
改善涉及sSMC的病例的遗传咨询.

主要方法:

对25例sSMC病例的临床数据的分析.
应用型分析,染色体微阵列分析,BAC-on-beads测定和FISH.
胎儿样本的综合分子和细胞遗传特征.

主要成果:

确定了各种sSMC类型,包括r(X),idic(15和i(12p),怀孕结果不同.
观察到的结果范围从妊娠终止到正常分娩和死产.
确定了一些sSMC的起源,而由于不完整的测试,其他仍然未知.

结论:

多种分子和细胞遗传方法对于识别sSMC起源和遗传内容至关重要.
准确的sSMC表征有助于在产前诊断期间提供有效的遗传咨询.
先进的测试可以提高对sSMC病例的理解和管理.

关键词:

染色体微阵列分析产前诊断在产前诊断.小超数标记染色体的小超数标记染色体

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