PMID- 24503147 OWN - NLM STAT- MEDLINE DCOM- 20141209 LR - 20140428 IS - 1878-0849 (Electronic) IS - 1769-7212 (Linking) VI - 57 IP - 5 DP - 2014 Apr TI - Report on 3 patients with 12p duplication including GRIN2B. PG - 185-94 LID - S1769-7212(14)00014-7 [pii] LID - 10.1016/j.ejmg.2013.12.009 [doi] AB - The duplication of the short arm (p) of chromosome 12 is a rare chromosomal abnormality, and most reported cases result from malsegregation of a balanced parental translocation associated with other chromosomal imbalances. Of the reported cases, only 15 involve a pure and complete 12p duplication and only 10 involve a pure and partial duplication overlapping the 12p12.3p13.1 region, including a single instance of an inherited duplication in two related individuals. Here, we report three new patients with a pure 12p duplication, detected by conventional cytogenetic studies and characterized by array-comparative genomic hybridization (array-CGH) and fluorescence in situ hybridization (FISH). The first patient was a child carrying a de novo inverted duplication of the short arm of chromosome 12. His phenotype was similar to that of the "trisomy 12p syndrome", characterized by developmental delays and craniofacial abnormalities including a high forehead, a short nose with anteverted nostrils and an everted lower lip. The second and third patients were a mother and son with a direct 12p12.3p13.1 duplication, exhibiting a milder phenotype characterized by moderate developmental delays, dysmorphic facial features, behavioral problems and obesity. The present data, including the rarity of the familial cases, should contribute to our knowledge of the genotype/phenotype correlation in trisomy 12p patients. CI - Copyright (c) 2014 Elsevier Masson SAS. All rights reserved. FAU - Poirsier, Celine AU - Poirsier C AD - Department of Genetics, Robert Debre University Hospital, Reims, France. Electronic address: celine.violle@gmail.com. FAU - Landais, Emilie AU - Landais E AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Bednarek, Nathalie AU - Bednarek N AD - Department of Pediatrics, Robert Debre University Hospital, Reims, France. FAU - Nobecourt, Jean-Marie AU - Nobecourt JM AD - E.P.A.R.S, Marchais, France. FAU - Khoury, Maroun AU - Khoury M AD - Department of Pediatrics, Laon Hospital, Laon, France. FAU - Schmidt, Pascal AU - Schmidt P AD - EA3801, URCA, Reims, France. FAU - Morville, Patrice AU - Morville P AD - Department of Pediatrics, Robert Debre University Hospital, Reims, France. FAU - Gruson, Nadine AU - Gruson N AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Clomes, Sandrine AU - Clomes S AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Michel, Nicole AU - Michel N AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Riot, Anita AU - Riot A AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Manjeongean, Christelle AU - Manjeongean C AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Gaillard, Dominique AU - Gaillard D AD - Department of Genetics, Robert Debre University Hospital, Reims, France. FAU - Doco-Fenzy, Martine AU - Doco-Fenzy M AD - Department of Genetics, Robert Debre University Hospital, Reims, France; EA3801, URCA, Reims, France. LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140203 PL - Netherlands TA - Eur J Med Genet JT - European journal of medical genetics JID - 101247089 RN - 0 (NR2B NMDA receptor) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - Chromosome 12, 12p trisomy SB - IM MH - Abnormalities, Multiple/*diagnosis/genetics MH - Adolescent MH - Adult MH - Chromosomes, Human, Pair 12/genetics MH - Comparative Genomic Hybridization MH - Female MH - Humans MH - Karyotyping MH - Male MH - Receptors, N-Methyl-D-Aspartate/*genetics MH - Trisomy/*diagnosis/genetics OTO - NOTNLM OT - 12p Duplication OT - Chromosome 12 OT - Familial OT - GRIN2B EDAT- 2014/02/08 06:00 MHDA- 2014/12/15 06:00 CRDT- 2014/02/08 06:00 PHST- 2013/06/04 00:00 [received] PHST- 2013/12/31 00:00 [accepted] PHST- 2014/02/08 06:00 [entrez] PHST- 2014/02/08 06:00 [pubmed] PHST- 2014/12/15 06:00 [medline] AID - S1769-7212(14)00014-7 [pii] AID - 10.1016/j.ejmg.2013.12.009 [doi] PST - ppublish SO - Eur J Med Genet. 2014 Apr;57(5):185-94. doi: 10.1016/j.ejmg.2013.12.009. Epub 2014 Feb 3.