PMID- 23450488 OWN - NLM STAT- MEDLINE DCOM- 20130726 LR - 20130301 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 30 IP - 1 DP - 2013 Feb TI - [A de novo partial 5p deletion and cryptic 18p duplication detected by SNP-Array in a boy featuring Cri du Chat syndrome]. PG - 87-90 LID - 10.3760/cma.j.issn.1003-9406.2013.01.021 [doi] AB - OBJECTIVE: To determine the karyotype of a boy suspected to have Cri du Chat syndrome with severe clinical manifestations, and to assess the recurrence risk for his family. METHODS: High-resolution GTG banding was performed to analyze the patient and his parents. Fluorescence in situ hybridization (FISH) with Cri du Chat syndrome region probe as well as subregional probes mapped to 5pter, 5qter, 18pter, 18qter, and whole chromosome painting probe 18 was performed to analyze the patient and his parents. In addition, single nucleotide polymorphism-based arrays (SNP-Array) analysis with Affymetrix GeneChip Genome-wide Human SNP Nsp/Sty 6.0 were also performed to analyze the patient. RESULTS: Karyotype analysis indicated that the patient has carried a terminal deletion in 5p. FISH with Cri du Chat syndrome region probe confirmed that D5S23 and D5S721 loci are deleted. SNP-Array has detected a 15 Mb deletion at 5p and a 2 Mb duplication at 18p. FISH with 5p subtelomeric probes and 18p subtelomeric probe further confirmed that the derivative chromosome 5 has derived from a translocation between 5p and 18p, which has given rise to a 46,XY,der(5)t(5;18)(p15.1;p11.31)dn karyotype. CONCLUSION: A de novo 5p partial deletion in conjunction with a cryptic 18p duplication has been detected in a boy featuring Cri-du-Chat syndrome. His parents, both with negative findings, have a low recurrence risk. For its ability to detect chromosomal imbalance, SNP-Array has a great value for counseling of similar patients and assessment of recurrence risks. FAU - Hu, Jian-cheng AU - Hu JC AD - Institute of Reproduction and Stem Cell Engineering, Central South University, Changsha, Hunan, People's Republic of China. FAU - Tan, Ke AU - Tan K FAU - Cheng, De-hua AU - Cheng DH FAU - Li, Lu-yun AU - Li LY FAU - Lu, Guang-xiu AU - Lu GX FAU - Tan, Yue-qiu AU - Tan YQ 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 RN - Chromosome 18, trisomy 18p SB - IM MH - Child, Preschool MH - Chromosome Banding MH - *Chromosome Deletion MH - Chromosomes, Human, Pair 18 MH - *Chromosomes, Human, Pair 5 MH - Cri-du-Chat Syndrome/*diagnosis/*genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Phenotype MH - Polymorphism, Single Nucleotide MH - *Trisomy EDAT- 2013/03/02 06:00 MHDA- 2013/07/28 06:00 CRDT- 2013/03/02 06:00 PHST- 2013/03/02 06:00 [entrez] PHST- 2013/03/02 06:00 [pubmed] PHST- 2013/07/28 06:00 [medline] AID - 940630021 [pii] AID - 10.3760/cma.j.issn.1003-9406.2013.01.021 [doi] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2013 Feb;30(1):87-90. doi: 10.3760/cma.j.issn.1003-9406.2013.01.021.