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一个侗区先天性白内障家系致病突变筛查

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摘要 目的探索一个先天性白内障家系的致病基因和致病突变。方法收集家系内患者的临床资料,采集家系内患者及正常人对照的外周血并提取基因组DNA,PCR扩增常见的CRYAA、CRYAB、CRYGD、CRYGC、CRYBB2、CJA8共6个基因,用Sanger双向测序和BLAST比对进行突变分析。结果 PCR扩增的先证者基因中检测到3个已知的单核苷酸多态性(Single NucleotidePolymorphisms,SNP),并未发现致病突变。结论排除这6个基因为该家系的致病原因,有待通过外显子组测序等更先进的方法筛选致病基因。
出处 《中国优生与遗传杂志》 2019年第2期227-228,223,共3页 Chinese Journal of Birth Health & Heredity
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