PMID- 12949964 OWN - NLM STAT- MEDLINE DCOM- 20040407 LR - 20200930 IS - 1552-4825 (Print) IS - 1552-4825 (Linking) VI - 122A IP - 1 DP - 2003 Sep 15 TI - Rapid prenatal diagnosis in translocation carriers by interphase FISH with chromosome-specific subtelomere probes. PG - 1-5 AB - Interphase fluorescence in situ hybridization (FISH) analysis can provide rapid preliminary analysis of chromosome aneuploidy from direct amniocyte and chorionic villus sample (CVS) preparations. Typically, interphase FISH is used in screening for numerical abnormalities of chromosomes X, Y, 13, 18, and 21. More recently, FISH probe sets became available for the subtelomeric region of each chromosome, allowing screening for terminal chromosome rearrangements. The purpose of the current study was to evaluate the use of dual-color interphase FISH analysis with chromosome-specific subtelomere probes for rapid prenatal diagnosis in 14 pregnancies from 12 different translocation carriers. Interphase FISH analysis was performed on direct CVS or amniocyte preparations from 12 reciprocal translocation and two Robertsonian translocation pregnancies with the appropriate chromosome-specific subtelomere probes for each chromosome involved in the translocation. Analysis of the interphase FISH probe signals predicted balanced or normal segregants in each case, thus rapidly excluding a chromosomally unbalanced segregant. Subsequent metaphase analysis showed normal karyotypes in seven fetuses and balanced translocations in the remaining seven. This series illustrates the utility of interphase FISH analysis with chromosome-specific subtelomere probes for rapid prenatal diagnosis in cases of parental reciprocal translocations and Robertsonian translocations. CI - Copyright 2003 Wiley-Liss, Inc. FAU - Cotter, Philip D AU - Cotter PD AD - Division of Medical Genetics and Department of Pathology, Children's Hospital Oakland, Oakland, California 92612, USA. pcotter@itsa.ucsf.edu FAU - Musci, Thomas J AU - Musci TJ FAU - Norton, Mary E AU - Norton ME LA - eng PT - Journal Article PL - United States TA - Am J Med Genet A JT - American journal of medical genetics. Part A JID - 101235741 RN - 0 (Molecular Probes) SB - IM MH - Amniocentesis MH - Chorionic Villi Sampling MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Interphase MH - Molecular Probes MH - Pregnancy MH - *Prenatal Diagnosis MH - *Translocation, Genetic EDAT- 2003/09/02 05:00 MHDA- 2004/04/08 05:00 CRDT- 2003/09/02 05:00 PHST- 2003/09/02 05:00 [pubmed] PHST- 2004/04/08 05:00 [medline] PHST- 2003/09/02 05:00 [entrez] AID - 10.1002/ajmg.a.20233 [doi] PST - ppublish SO - Am J Med Genet A. 2003 Sep 15;122A(1):1-5. doi: 10.1002/ajmg.a.20233.