PMID- 8587862 OWN - NLM STAT- MEDLINE DCOM- 19960327 LR - 20190905 IS - 0197-3851 (Print) IS - 0197-3851 (Linking) VI - 15 IP - 10 DP - 1995 Oct TI - Detection of fetal cells in transcervical samples and prenatal diagnosis of chromosomal abnormalities. PG - 943-9 AB - Transcervical samples collected by lavage, aspiration, and cytobrush from women between 6 and 13 weeks of gestation were tested for the presence of fetal cells using fluorescence in situ hybridization (FISH) with probes for chromosomes X, Y, 1, and 21, and by polymerase chain reaction (PCR) amplification of DNA sequences derived from chromosomes X, Y, and 21. With a few exceptions, a good correlation was observed between the results of sexing the fetuses using FISH or PCR on transcervical cell (TCC) samples retrieved by lavage and those obtained by testing fetal (placental) tissue. In a comparative study between TCC samples collected by lavage or cytobrush, the sex of the fetus was correctly diagnosed by PCR amplification of a Y-derived DNA sequence. Variable results were observed with samples obtained by aspiration, mainly because this procedure was found to be more prone to failure to remove thick mucus without previous injection of physiological saline. Chromosome 21-derived small tandem repeats (STRs) of fetal origin were successfully detected in about 40 per cent of TCC samples recovered by lavage. Two cases of chromosomal abnormalities, one of trisomy 21 and one of triploidy, were detected in TCC samples in the course of our investigations. FAU - Adinolfi, M AU - Adinolfi M AD - Department of Obstetrics and Gynaecology, University College London Medical School, U.K. FAU - Sherlock, J AU - Sherlock J FAU - Tutschek, B AU - Tutschek B FAU - Halder, A AU - Halder A FAU - Delhanty, J AU - Delhanty J FAU - Rodeck, C AU - Rodeck C LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Prenat Diagn JT - Prenatal diagnosis JID - 8106540 RN - 0 (DNA Probes) SB - IM MH - *Cell Separation MH - Cervix Uteri MH - DNA Probes MH - Female MH - Fetus/*cytology MH - Gestational Age MH - Humans MH - In Situ Hybridization, Fluorescence MH - Polymerase Chain Reaction MH - Pregnancy MH - Prenatal Diagnosis/*methods MH - Sex Chromosome Aberrations/*diagnosis EDAT- 1995/10/01 00:00 MHDA- 1995/10/01 00:01 CRDT- 1995/10/01 00:00 PHST- 1995/10/01 00:00 [pubmed] PHST- 1995/10/01 00:01 [medline] PHST- 1995/10/01 00:00 [entrez] AID - 10.1002/pd.1970151009 [doi] PST - ppublish SO - Prenat Diagn. 1995 Oct;15(10):943-9. doi: 10.1002/pd.1970151009.