【摘要】 目的:评估单核苷酸多态性微阵列(SNP array)分析在智力障碍/发育迟缓(ID/DD)遗传学诊断中的应用价值。方法:以2013年1月至2018年6月在浙江大学医学院附属妇产科医院因ID/DD行SNP array的145例患者为研究对象,采用CHAS软件与多种数据库对染色体拷贝数变异(CNV)进行分析。结果:145例ID/DD患者通过SNP array技术发现致病性CNV 26例,可能致病CNV 6例,意义不明18例,可能良性14例,未见明显异常(包含良性)81例。结论:SNP array技术是一种高效和特异的遗传学分析技术,适用于ID/DD的遗传学病因诊断。更多还原

【Abstract】 Objective: To assess the clinical application of single nucleotide polymorphism microarray(SNP array) in patients with intellectual disability/developmental delay(ID/DD). Methods: SNP array was performed to detect genome-wide DNA copy number variants(CNVs) for 145 patients with ID/DD in Women’s Hospital, Zhejiang University School of Medicine from January 2013 to June 2018. The CNVs were analyzed by CHAS software and related databases. Results: Among 145 patients, pathogenic chromosomal abnormalities were detected in 32 cases, including 26 cases of pathogenic CNVs and 6 cases of likely pathogenic CNVs. Meanwhile, 18 cases of uncertain clinical significance and 14 cases of likely benign were identified, no significant abnormalities were found in 81 cases(including benign). Conclusion: SNP array is effective for detecting chromosomal abnormalities in patients with ID/DD with high efficiency and resolution.更多还原