PMID- 21462121 OWN - NLM STAT- MEDLINE DCOM- 20110531 LR - 20110404 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 28 IP - 2 DP - 2011 Apr TI - [Detection of cryptic copy number variations in a fetus with congenital heart disease by array-based comparative genomic hybridization]. PG - 133-6 LID - 10.3760/cma.j.issn.1003-9406.2011.02.003 [doi] AB - OBJECTIVE: To detect the copy number variation (CNV) of a fetus with interrupted aortic arch and ventricular septal defect, in order to explore the underlying genetic causes of the congenital malformation, and investigate the feasibility of array-based comparative genomic hybridization (array-CGH) in molecular cytogenetic diagnosis. METHODS: The whole genome of the fetus with de novo apparently balanced translocations [46,XX,t(7;9)(q12;q21)] diagnosed by G-banding was scanned and analyzed by array-CGH, and the copy number variation was confirmed by fluorescence in situ hybridization (FISH). RESULTS: A pathologic submicroscopic CNV [del(22) (q11.2) (17 370 128-19 790 009, -2.42 Mb)] was identified and mapped by array-CGH. FISH test confirmed the microdeletion detected by array-CGH. CONCLUSION: The cryptic 22q11.2 deletion might be the reason leading to the congenital malformation of the fetus. This study provides evidence that apparently balanced translocations classified by conventional cytogenetic techniques may host additional submicroscopic CNVs which are not located at the breakpoints. Due to the high-resolution, high-throughput and high-accuracy, array-CGH is considered to be a powerful tool for submicroscopic CNVs detection. FAU - HU, Ping AU - HU P AD - Center for Prenatal Diagnosis, Nanjing Women and Children Health Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210004 P. R. China. njxzf@126.com. FAU - WANG, Yan AU - WANG Y FAU - JI, Xiu-qing AU - JI XQ FAU - LIN, Ying AU - LIN Y FAU - Li, Li AU - Li L FAU - ZHOU, Xiao-yan AU - ZHOU XY FAU - CHEN, Jian AU - CHEN J FAU - MA, Ding-yuan AU - MA DY FAU - CAO, Li AU - CAO L FAU - Xu, Zhengfeng AU - Xu Z LA - chi PT - Case Reports PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Yi Xue Yi Chuan Xue Za Zhi JT - Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics JID - 9425197 SB - IM MH - Abnormalities, Multiple/diagnosis/genetics MH - Adult MH - Chromosome Deletion MH - Comparative Genomic Hybridization/*methods MH - *DNA Copy Number Variations MH - Female MH - Fetal Diseases/diagnosis/*genetics MH - Heart Defects, Congenital/diagnosis/*genetics MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - Pregnancy EDAT- 2011/04/05 06:00 MHDA- 2011/06/01 06:00 CRDT- 2011/04/05 06:00 PHST- 2011/04/05 06:00 [entrez] PHST- 2011/04/05 06:00 [pubmed] PHST- 2011/06/01 06:00 [medline] AID - 940628026 [pii] AID - 10.3760/cma.j.issn.1003-9406.2011.02.003 [doi] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2011 Apr;28(2):133-6. doi: 10.3760/cma.j.issn.1003-9406.2011.02.003.